阅读说明：本技术 分离装置及分离方法 (Separation device and separation method ) 是由 王曦 于 2021-08-16 设计创作，主要内容包括：本申请公开了一种分离装置,包括用于振动工件的振动机构、以及用于检测工件第二部分的振动频率的检测机构；通过检测机构获取第二部分的共振频率后,振动机构使得工件在该频率下振动；由于第二部分在其特定的共振频率下振动时,其产生的振动幅度最大,随着第二部分在该频率下不断振动,第二部分和第一部分的连接位置受到破坏,从而快速、简单地实现第一部分和第二部分的分离。本申请还公开了一种分离方法,用于分离工件的第一部分和第二部分,包括获取第二部分共振频率的第一步骤,以及使得工件以共振频率振动的第二步骤,当工件在该频率下振动时,第二部分受共振影响,其振动产生的振动幅度大,易于第一部分和第二部分脱离。(The application discloses a separating device, which comprises a vibration mechanism for vibrating a workpiece and a detection mechanism for detecting the vibration frequency of a second part of the workpiece; after the resonant frequency of the second part is obtained by the detection mechanism, the workpiece is vibrated at the resonant frequency by the vibration mechanism; since the second part generates the largest amplitude of vibration when it vibrates at its particular resonant frequency, the connection location of the second part to the first part is broken as the second part continuously vibrates at that frequency, thereby quickly and simply achieving separation of the first and second parts. The application also discloses a separation method for separating the first part and the second part of the workpiece, which comprises a first step of acquiring the resonant frequency of the second part and a second step of enabling the workpiece to vibrate at the resonant frequency, wherein when the workpiece vibrates at the resonant frequency, the second part is influenced by resonance, the vibration amplitude generated by the vibration is large, and the first part and the second part are easy to separate.)

1. Separating device for separating a first portion (11) and a second portion (12) of a workpiece (10), characterized in that it comprises:

a vibration mechanism (20) for vibrating the workpiece (10);

-a detection mechanism (30) for detecting the vibration frequency of the second portion (12) of the workpiece (10);

after the resonant frequency of the second portion (12) is acquired by the detection mechanism (30), the vibration mechanism (20) vibrates the workpiece (10) at the resonant frequency so as to separate the first portion (11) and the second portion (12).

2. Separating device according to claim 1, characterized in that the vibrating mechanism (20) comprises:

a carrier (21) for receiving a workpiece (10);

a fixing assembly (22) for fixing the workpiece (10) on the stage (21);

the driving assembly (23) is used for driving the carrying platform (21) to vibrate so as to drive the workpiece (10) on the carrying platform (21) to vibrate, or is used for driving the workpiece (10) on the carrying platform (21) to vibrate.

3. Separating device according to claim 2, characterized in that the drive assembly (23) is connected to the detection means (30);

after the workpiece (10) is loaded, the driving component (23) is matched with the detection mechanism (30) to obtain the resonant frequency of the second part (12) of the workpiece (10);

the drive assembly (23) causes the stage (21) to vibrate at the resonant frequency, thereby driving the first portion (11) and the second portion (12) of the workpiece (10) to vibrate at the resonant frequency synchronously.

4. Separating device as in claim 2, characterized in that said driving assembly (23) comprises a first oscillating assembly (234) and a second oscillating assembly (235);

after the workpiece (10) is loaded, the first vibration component (234) is matched with the detection mechanism (30) to obtain the resonant frequency of the second part (12) of the workpiece (10);

the second vibratory assembly (235) acts on the workpiece (10) to cause at least a second portion (12) of the workpiece (10) to vibrate at the resonant frequency.

5. Separating device according to claim 2, characterized in that the carrier (21) is suspended and turned upside down, the carrier (21) holding the first part (11) of the workpiece (10) such that the second part (12) of the workpiece (10) is below the first part (11).

6. The separation device according to claim 1, wherein the vibration mechanism (20) drives the workpiece (10) to reciprocate in a first direction, the vibration mechanism (20) also driving the workpiece (10) to reciprocate in a second direction;

-a second portion (12) of the workpiece (10) is arranged on a first portion (11) of the workpiece (10) in a second direction;

the first direction intersects the second direction.

7. Separating device according to claim 6, characterized in that the vibration means (20) also drive the workpiece (10) in a reciprocating movement in a third direction;

the third direction is parallel to the second direction.

8. Separation device according to any of claims 1-7, wherein the detection means (30) is an acoustic sensor;

when the workpiece (10) vibrates, the second part (12) of the workpiece (10) generates mechanical vibration, and the acoustic wave sensor can acquire the mechanical vibration of the second part (12) and convert the mechanical vibration into an electric signal.

9. A separating device according to any of claims 1-7, characterized in that the separating device further comprises a turning mechanism (40);

after the workpiece (10) resonates for a time T, and/or after the workpiece (10) resonates for N times, the rotating mechanism (40) controls the workpiece (10) to rotate so as to separate the second part (12) from the first part (11);

wherein T is greater than 0, and N is a natural number not less than 1.

10. Separating device as in claim 9, characterized in that said rotating means (40) comprise:

a gripping assembly (41) for acquiring the workpiece (10) in the vibration mechanism (20);

and the rotating driving assembly (42) is connected with the grabbing assembly (41) and can drive the grabbing assembly (41) to rotate so as to drive the workpiece (10) to rotate.

11. The separation device of any one of claims 1-7, further comprising a phase change phase filled with a medium;

when the vibration mechanism (20) vibrates the workpiece (10), the workpiece (10) is positioned in the phase change and is in contact with the medium;

the workpiece (10) is vibrated in the medium, which acts on the workpiece (10) to facilitate separation of the first part (11) and the second part (12).

12. A separating method, characterized in that it is used for separating a first portion (11) and a second portion (12) of a workpiece (10), comprising the steps of:

s1, acquiring the resonance frequency of a second part (12) of the workpiece (10);

s2, vibrating the workpiece (10) at the resonance frequency so as to separate the first part (11) and the second part (12).

13. The separation method according to claim 12, wherein the S1 includes:

s1-1, vibrating the workpiece (10) at a vibration frequency H1, and obtaining a vibration amplitude L1 of the second part (12);

s1-2, vibrating the workpiece (10) at a vibration frequency H2, and obtaining a vibration amplitude L2 of the second part (12);

s1-3, vibrating the workpiece (10) at a vibration frequency H3, and obtaining a vibration amplitude L3 of the second part (12);

……

s1-n. vibrating the workpiece (10) at a vibration frequency Hn, obtaining a vibration amplitude Ln of the second portion (12);

wherein the amplitude La of the vibration of the second part (12) is maximal at a vibration frequency Ha, i.e. the resonance frequency of the second part (12).

14. The separation method according to claim 13, wherein the vibration frequencies H1, H2, H3 … … Hn are increased incrementally.

15. The separation method according to claim 14, wherein the S1 further comprises:

a first test stage, wherein the workpiece is made to vibrate at vibration frequencies H1', H2', H3' … …, the vibration amplitudes L1', L2', L3' … … of the second part (12) are obtained, the vibration frequencies H1', H2', H3' … … are increased in an equal difference mode, the difference value of any two adjacent vibration frequencies is A, and the vibration amplitude La ' of the second part (12) is maximum at the vibration frequency Ha ';

a second test phase, in which the workpiece is made to vibrate at vibration frequencies H1'', H2'', H3'' … …, and the vibration amplitudes L1'', L2'', L3'' … … of the second part (12) are obtained, wherein the differences of the vibration frequencies H1'', H2'', H3'' … … are increased in an equal difference mode, and the difference value of any two adjacent vibration frequencies is B;

wherein Ha-1' < H1' < Ha +1', B < A.

16. The separation method according to claim 12, wherein in said S1 and/or said S2, at least a second portion (12) of the workpiece (10) is reciprocated in a first direction;

the second portion (12) is arranged on the first portion (11) of the workpiece (10) in a second direction;

the first direction intersects the second direction.

17. The separation method according to claim 16, wherein in said S1 and/or said S2, at least the second portion (12) of the workpiece (10) is also reciprocated in a third direction;

the third direction is parallel to the second direction.

18. The separation method according to any one of claims 12 to 17, wherein in the S2, the second part (12) is caused to vibrate at the resonance frequency;

alternatively, in S2, the first part (11) and the second part (12) of the workpiece (10) are caused to vibrate synchronously at the resonance frequency.

19. The separation method according to any one of claims 12 to 17, wherein in S2, before the workpiece (10) is vibrated at the resonance frequency, the workpiece (10) is placed in a medium so that the workpiece (10) is vibrated in the medium, the medium acting on the workpiece (10) to facilitate separation of the first portion (11) and the second portion (12).

20. The separation method according to any one of claims 12 to 17, further comprising S3: -after a resonance time T of said workpiece (10), and/or after N times of resonance of said workpiece (10), causing a rotational movement of said workpiece (10) to facilitate separation of said second portion (12) from said first portion (11);

wherein T is greater than 0, and N is a natural number not less than 1.

Technical Field

The application relates to the technical field of 3D printing, in particular to a separating device and a separating method.

Background

In the 3D printing process, when the horizontal sizes of the positions of different heights of the object are different, the object needs to pass through the printing support to be used as a base station of the positions with different horizontal sizes.

With particular reference to fig. 1, a simple, 3D printed object 10' is illustrated, consisting of two cylinders 11' and 12 '; the radius of the lower cylinder 11 'is smaller than the radius of the upper cylinder 12'. It can be known that, in order to avoid the deformation of the printed matter caused by the self-weight of the printing material in the printing process, the 3D printing process is usually performed from bottom to top. When the structure of the object above extends horizontally, the extended part protrudes out of the structure below in the horizontal direction, and at the moment, the protruding part below is not supported and is easily deformed under the influence of the self weight of the printing material.

To this end, with continued reference to fig. 2, an article is illustrated having a support 13', which support 13' is capable of assisting a cylinder 11 'of smaller radius as a base for a cylinder 12' of larger radius. Briefly, before the 3D printer constructs the cylinder 12', a plurality of supports 13' are constructed around the cylinder 11', such that the supports 13' are located within the projection of the cylinder 12 'on the horizontal plane, and then the cylinder 12' is constructed on the cylinder 11 'and the supports 13'. Thus, the support 13' can play a supporting role, thereby facilitating the structure forming above.

However, the holder is not a part required for the final subject matter, and therefore, the holder needs to be removed after printing is completed.

In the prior art, the bracket is usually broken manually by a person, or cut off by a cutting knife. These methods of removing the stent are time consuming, labor intensive, and prone to damage to the desired portion of the subject matter.

Disclosure of Invention

The purpose of this application is to overcome the shortcoming that exists among the prior art, provides a separator.

To achieve the above technical object, the present application provides a separating apparatus for separating a first portion and a second portion of a workpiece, comprising: the vibration mechanism is used for vibrating the workpiece; a detection mechanism for detecting a vibration frequency of the second portion of the workpiece; after the resonant frequency of the second portion is acquired by the detection mechanism, the vibration mechanism vibrates the workpiece at the resonant frequency so as to separate the first portion and the second portion.

Further, the vibration mechanism includes: the carrying platform is used for carrying a workpiece; the fixing assembly is used for fixing the workpiece on the carrying platform; and the driving assembly is used for driving the carrying platform to vibrate and further driving the workpiece on the carrying platform to vibrate, or is used for driving the workpiece on the carrying platform to vibrate.

Further, the driving assembly is connected with the detection mechanism; after the workpiece is fed, the driving assembly is matched with the detection mechanism to obtain the resonance frequency of the second part of the workpiece; the drive assembly enables the carrier to vibrate at a resonant frequency, so that the first portion and the second portion of the workpiece are driven to synchronously vibrate at the resonant frequency.

Further, the driving assembly comprises a first vibrating assembly and a second vibrating assembly; after the workpiece is fed, the first vibration assembly is matched with the detection mechanism to obtain the resonance frequency of the second part of the workpiece; the second vibratory assembly acts on the workpiece to vibrate at least a second portion of the workpiece at the resonant frequency.

Further, the stage is suspended and inverted, and the stage holds a first portion of the workpiece such that a second portion of the workpiece is below the first portion.

Further, the vibration mechanism drives the workpiece to reciprocate along the first direction; a second portion of the workpiece is disposed on the first portion of the workpiece in a second direction; the first direction intersects the second direction.

Further, the vibration mechanism drives the workpiece to reciprocate along a third direction; the third direction is parallel to the second direction.

Furthermore, the detection mechanism adopts an acoustic wave sensor; when the workpiece vibrates, the second part of the workpiece generates mechanical vibration, and the acoustic wave sensor can acquire the mechanical vibration of the second part and convert the mechanical vibration into an electric signal.

Further, the separating device also comprises a rotating mechanism; after the workpiece resonates for time T and/or N times, the rotating mechanism controls the workpiece to rotate so as to separate the second part from the first part; wherein T is greater than 0, and N is a natural number not less than 1.

Further, the rotating mechanism includes: the grabbing component is used for acquiring a workpiece in the vibration mechanism; the rotary driving component is connected with the grabbing component and can drive the grabbing component to rotate, and then the workpiece is driven to rotate.

Furthermore, the separation device also comprises a phase change phase, wherein a medium is filled in the phase change phase; when the vibration mechanism vibrates the workpiece, the workpiece is positioned in the phase change space and is contacted with the medium; the workpiece is vibrated in a medium which acts on the workpiece to facilitate separation of the first and second portions.

The present application also provides a separation method for separating a first portion and a second portion of a workpiece, comprising the steps of:

s1, acquiring the resonance frequency of a second part of the workpiece;

s2, vibrating the workpiece at the resonance frequency so as to separate the first part from the second part.

Further, S1 includes:

s1-1, vibrating the workpiece at a vibration frequency H1 to obtain a vibration amplitude L1 of the second part;

s1-2, vibrating the workpiece at the vibration frequency H2 to obtain the vibration amplitude L2 of the second part;

s1-3, vibrating the workpiece at the vibration frequency H3 to obtain the vibration amplitude L3 of the second part;

……

s1-n, vibrating the workpiece at the vibration frequency Hn to obtain the vibration amplitude Ln of the second part;

wherein the vibration amplitude La of the second part is the largest at the vibration frequency Ha, i.e. the resonance frequency of the second part.

Further, the vibration frequencies H1, H2, and H3 … … Hn are increased in increments.

Further, the vibration frequencies H1, H2, and H3 … … Hn are incrementally different.

Further, S1 further includes:

in the first test stage, the workpiece is made to vibrate at vibration frequencies H1', H2' and H3' … …, the vibration amplitudes L1', L2', L3' … …, the vibration frequencies H1', H2' and H3' … … of the second part are obtained, the difference value of any two adjacent vibration frequencies is A, and the vibration amplitude La ' of the second part is maximum under the vibration frequency Ha ';

a second test stage, vibrating the workpiece at vibration frequencies H1'', H2'', H3'' … … to obtain vibration amplitudes L1'', L2'', L3'' … … of the second part, wherein the difference of the vibration frequencies H1'', H2'', H3'' H … … of the second part is increased in an equal difference mode, and the difference value of any two adjacent vibration frequencies is B;

wherein Ha-1' < H1' < Ha +1', B < A.

Further, in S1 and/or S2, at least the second portion of the workpiece is reciprocated in the first direction; the second portion is disposed on the first portion of the workpiece in a second direction; the first direction intersects the second direction.

Further, at least the second portion of the workpiece is also reciprocated in the third direction in S1 and/or S2; the third direction is parallel to the second direction.

Further, in S2, the second portion is caused to vibrate at the resonance frequency; alternatively, in S2, the first and second portions of the workpiece are caused to vibrate synchronously at the resonant frequency.

Further, in S2, before the workpiece is vibrated at the resonance frequency, the workpiece is placed in a medium so that the workpiece is vibrated in the medium, and the medium acts on the workpiece to facilitate separation of the first portion and the second portion.

Further, the separation method further includes S3: after the workpiece resonates for the time T and/or N times, the workpiece rotates to facilitate the separation of the second part from the first part; wherein T is greater than 0, and N is a natural number not less than 1.

The application provides a separating device, which is used for separating a first part and a second part of a workpiece and comprises a vibration mechanism for vibrating the workpiece and a detection mechanism for detecting the vibration frequency of the second part of the workpiece; after the resonant frequency of the second part is obtained by the detection mechanism, the workpiece is vibrated at the resonant frequency by the vibration mechanism; since the second part generates the largest amplitude of vibration when it vibrates at its particular resonant frequency, the connection location of the second part to the first part is broken as the second part continuously vibrates at that frequency, thereby quickly and simply achieving separation of the first and second parts.

The application also provides a separation method for separating a first part and a second part of a workpiece, which comprises a first step of acquiring the resonant frequency of the second part and a second step of enabling the workpiece to vibrate at the resonant frequency, wherein when the workpiece vibrates at the resonant frequency, the second part is influenced by resonance, the vibration amplitude generated by the vibration is large, and the first part and the second part are easy to separate.

Drawings

FIG. 1 is a subject matter constructed by a 3D printer;

FIG. 2 is a print constructed by a 3D printer;

FIG. 3 is a separating apparatus provided herein;

FIG. 4 is another vibration mechanism provided herein;

FIG. 5 is another separation device provided herein;

FIG. 6 is a separation process provided herein;

FIG. 7 illustrates a method for obtaining a resonant frequency of a second portion of a workpiece according to the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The present application provides a separating apparatus for separating a first portion 11 and a second portion 12 of a workpiece 10.

It should be explained first that the workpiece 10 comprises a first part 11 and a second part 12, and the separating device provided in the present application is mainly used to separate the first part 11 from the second part 12, but may also be understood to separate the second part 12 from the first part 11. Typically, the second portion 12 is an unwanted portion of the workpiece 10, while the first portion 11 is a portion that needs to be retained after separation.

In one embodiment, the workpiece 10 is a print constructed by a 3D printer, the print including a valid target portion and an invalid, scaffold portion that needs to be removed. In this case, the subject portion may be considered as the first portion 11 described herein, and the stand portion may be considered as the second portion 12 described herein.

In other embodiments, the workpiece 10 may be other articles having portions to be separated.

For example, the workpiece 10 may be a tool provided with a plurality of loads. Therefore, in the process of transporting the tool, the loaded object can be clamped on the station arranged on the surface of the tool in order to avoid the loaded object from being separated from the tool. When the load is taken down, a certain force needs to be applied to the load or the tooling so as to release the connection between the load and the tooling.

As another example, the workpiece 10 may be a tiled item, similar to a building-together Legao toy. In this case, the workpiece 10 has a plurality of components assembled together, and a certain external force is also required to release the connection of the components.

Also for example, the workpiece 10 may be a bonded article, similar to a scrap bin storing scrap material, an item under test provided with an identity indicating component, or the like. At this time, the portion to be separated may be accumulated in the corner of the portion to be retained, or the portion to be separated may be attached to the surface of the portion to be retained due to the influence of intermolecular attraction because of its small mass. In this case, a certain external force is also required to separate the portion to be separated from the portion to be retained.

The present application does not limit the specific type of workpiece 10.

Referring to fig. 3, the present application provides a separation apparatus including: a vibration mechanism 20 for vibrating the workpiece 10; a detection mechanism 30 for detecting a vibration frequency of the second portion 12 of the workpiece 10; after the resonant frequency of the second portion 12 is acquired by the detection mechanism 30, the vibration mechanism 20 vibrates the workpiece 10 at the resonant frequency so as to separate the first portion 11 and the second portion 12.

It should be explained that resonance refers to the situation where a physical system vibrates with a larger amplitude at a specific frequency than at other frequencies. And the resonance frequency is the above-mentioned "specific frequency". The amplitude of the physical system is at its maximum when it vibrates at its resonant frequency.

It can be seen that if the physical system continues to vibrate at its resonant frequency, the physical system is subjected to strong dynamic stress, which may result in deformation of its structure and even destruction of its structure.

In the workpiece 10 described in the present application, the first part 11 and the second part 12 may be regarded as one physical system, respectively. After the resonant frequency of the second part 12 is obtained by the detection mechanism 30, at least the second part 12 is caused to vibrate at that frequency; at this time, the maximum amplitude of the movement of the second portion 12, especially the connection position of the second portion 12 to the first portion 11, may be destroyed by the relative movement of the first portion 11 and the second portion 12, thereby facilitating the detachment of the second portion 12 from the first portion 11.

Of course, it is conceivable to acquire the resonant frequency of the first part 11 by the detection mechanism and to vibrate at least the first part 11 at this frequency by the vibration mechanism 20; at this time, the amplitude of the movement of the first portion 11 is maximized so as to break the connection position on the first portion 11 and the second portion 12.

It is also easily conceivable that both the first part 11 and the second part 12 may be made to vibrate at the resonance frequency of the second part 12 and the first part 11, provided that the resonance frequencies of the first part 11 and the second part 12 do not coincide, the separation of the two being equally possible.

It is added that when an object vibrates at its specific resonant frequency, the object vibrates violently with a high probability of damaging its own structure. Therefore, when the separation of the first portion 11 and the second portion 12 in the workpiece 10 is achieved by the resonance method, it is preferable to resonate a portion which is no longer necessary or valuable, so as to avoid damaging the effective portion.

In one embodiment, the workpiece 10 is a print constructed by a 3D printer and includes a target portion and a stand portion. Since the holder portion is a portion that is not actually required, the separation of the subject portion and the holder portion can be efficiently achieved by taking the resonance frequency of the holder portion to resonate at least the holder portion, taking the subject portion as the first portion 11 and the holder portion as the second portion 12.

Specifically, in this embodiment, after the resonance frequency of the cradle portion is obtained, the subject portion and the cradle portion of the print product can be caused to vibrate at the frequency at the same time. The specific resonant frequencies of the object part and the bracket part are different due to different volumes and structures of the object part and the bracket part; therefore, at the resonance frequency of the support portion, the vibration amplitude of the support portion is larger than the vibration amplitude of the subject matter portion. Since the bracket portion is virtually connected to the subject portion, and the connecting position portion of the bracket portion and the subject portion is hollow, the connecting position is easily broken when the bracket portion is violently vibrated, so that the bracket portion is separated from the subject portion.

Of course, in this embodiment, after the resonant frequency of the carrier portion is obtained, the vibration mechanism 20 may be applied only to the carrier portion so that the carrier portion vibrates at that frequency. At this time, the bracket portion vibrates violently relative to the target portion, and the connecting position between the bracket portion and the target portion can be damaged until the bracket portion and the target portion are separated.

To obtain the resonant frequency of the second portion 12, in one embodiment, the workpiece 10 may be vibrated by the vibration mechanism 20, and the vibration amplitude of the second portion 12 may be detected by the detection mechanism 30. In this embodiment, the vibration mechanism 20 inputs vibration waves of different frequencies to the second portion 12 a plurality of times, and the detection mechanism 30 continuously acquires the vibration amplitude of the second portion 12, and the maximum amplitude obtained finally is the resonance frequency specified by the second portion 12.

After the desired resonant frequency is obtained, the vibration mechanism 20 is adjusted to input a vibration wave to the workpiece 10 at the frequency so that the second portion 12 is vibrated vigorously at the frequency, and finally separation of the first portion 11 and the second portion 12 is achieved.

In other embodiments, other vibration generators may be used, and the other vibration generators cooperate with the detection mechanism 30 to obtain the specific resonance frequency of the second portion 12 and then achieve resonance separation by the vibration mechanism 20.

Wherein, vibration mechanism 20 includes: a stage 21 for receiving the workpiece 10; a fixing assembly 22 for fixing the workpiece 10 on the stage 21; the driving assembly 23 is configured to drive the stage 21 to vibrate, so as to drive the workpiece 10 on the stage 21 to vibrate, or drive the workpiece 10 on the stage 21 to vibrate.

The carrier 21 is capable of receiving at least one workpiece 10. In some embodiments, the carrier 21 may also receive multiple workpieces 10 simultaneously to improve separation efficiency.

The fixing member 22 may be provided on the stage 21, or may be provided outside the stage 21, as long as it can clamp the workpiece 10 and ensure that the workpiece 10 is affected by the vibration of the stage 21 and vibrates with the stage 21. The fixture assembly 22 may be a clamp including at least two jaws for clamping the workpiece 10 and a clamp drive (e.g., pneumatic) for driving the jaws relative to each other; after the workpiece 10 is conveyed to the carrier 21, the clamping driving part drives the clamping plates to approach each other, so that the clamping plates clamp the workpiece 10; when the carrier 21 vibrates, the clamp vibrates synchronously with the carrier 21, and further drives the workpiece 10 to vibrate synchronously. Alternatively, the fixing unit 22 may be a suction cup, and the workpiece 10 may be sucked onto the stage 21. Still alternatively, the fixing assembly 22 may adopt a plurality of limiting blocks, the limiting blocks are enclosed to form an accommodating frame capable of clamping the workpiece 10, and the workpiece 10 is directly clamped in the accommodating frame when entering the carrier 21, and the workpiece 10 can also be fixed by the accommodating frame. The present application is not limited to the specific structure of the fixing member 22.

By arranging the fixing component 22, on one hand, the position of the workpiece 10 on the carrier 21 can be fixed, the workpiece 10 is prevented from moving relative to the carrier 21 in the vibration process, and the workpiece 10 is ensured to stably vibrate along with the carrier 21; on the other hand, the vibration of the stage 21 can be transmitted to the workpiece 10 more favorably.

The drive assembly 23 may employ a vibration generator capable of driving the stage 21 or the workpiece 10 to reciprocate in one or more directions.

It should be added that the driving assembly 23 can drive the stage 21 or the workpiece 10 to reciprocate in the vertical direction, can drive the stage 21 or the workpiece 10 to reciprocate in the horizontal direction, can drive the stage 21 or the workpiece 10 to reciprocate in the oblique direction, or can drive the stage 21 or the workpiece 10 to reciprocate in the curve.

To facilitate disengagement of the first and second portions 11, 12, the drive assembly 23 may drive the stage 21 or the workpiece 10 in a direction perpendicular to the direction of connection of the first and second portions 11, 12.

Specifically, the vibration mechanism 20 drives the workpiece 10 to reciprocate in a first direction; the second portion 12 of the workpiece 10 is disposed on the first portion 11 of the workpiece 10 in the second direction; the first direction intersects the second direction. For example, in the embodiment shown in fig. 1 and 2, the workpiece 10 is a print constructed by a 3D printer, the first portion 11 is a target portion (cylinders 11' and 12 ') therein, and the second portion 12 is a stand portion (stand 13 ') therein. In the figure, the support 13' is arranged in a vertical direction on the portion of the subject constituted by the two cylinders 11' and 12 '. Therefore, the vibration mechanism 20 can drive the workpiece 10 to vibrate in any direction in the horizontal plane. Alternatively, the vibration mechanism 20 may drive the workpiece 10 to vibrate in any direction other than the vertical direction. At this time, the vibration of the workpiece 10 causes the second portion 12 to have a force that deforms in the first direction, and the direction of the force acts on the connection position, and the first portion 11 and the second portion 12 are more likely to separate.

After the workpiece 10 is vibrated back and forth along the direction different from the second direction, the situation that the connecting position is partially broken but the parts are still connected can occur, and in order to further stimulate the connecting position of the first part 11 and the second part 12 and separate the two parts, the vibration mechanism 20 also drives the workpiece 10 to move back and forth along the third direction; the third direction is parallel to the second direction.

For example, in the embodiment shown in fig. 1 and 2, the vibration mechanism 20 drives the 3D printed article to reciprocate in the horizontal direction after a certain time, or, at the same time, the vibration mechanism 20 drives the 3D printed article to reciprocate in the vertical direction to facilitate the breaking and the detachment of the connection position.

In the first embodiment, referring to the above, the vibration mechanism 20 has two purposes, one: the cooperation detecting mechanism 30 acquires a specific vibration frequency of the first part 11 or the second part 12; II, secondly: the workpiece 10 is vibrated at a specific resonance frequency.

In the second embodiment, as described above, the vibration mechanism 20 is used only for vibrating the workpiece 10 at a specific resonance frequency.

In any case, the vibration mechanism 20 has a function of information interaction with the detection mechanism 30. Therefore, the driving assembly 23 of the vibration mechanism 20 is connected to the detection mechanism 30, and the driving assembly 23 is usually electrically connected to the detection mechanism 30.

For example, the driving assembly 23 includes: a controller 231, configured to receive a detection signal of the detection mechanism 30, and convert the detection signal into a control signal for controlling vibration of the stage 21; an amplifier 232 for receiving the control signal of the controller 231 and amplifying the control signal; and a generator 233 for receiving the amplified control signal and driving the stage 21 or the workpiece 10 to vibrate.

Specifically, the Controller 231 may be a PLC (Programmable Logic Controller), and the detection mechanism 30 is electrically connected thereto. For example, during the acquisition of the specific resonant frequency of the second portion 12, the detection mechanism 30 continuously monitors the amplitude of the second portion 12 and feeds it back to the controller 231 until the controller 231 determines the maximum amplitude of the second portion 12, thereby determining the specific resonant frequency of the second portion 12. Subsequently, the controller 231 converts the obtained amplitude information into an electric signal for controlling the generator 233 to output a specific vibration wave. After the electrical signal is amplified by the amplifier 232, the generator 233 causes the stage 21 to drive the workpiece 10 to vibrate at a specific vibration frequency.

It should be added that the generator 233 can directly act on the stage 21, and the entire workpiece 10 is driven by the stage 21 to vibrate, and since the vibration frequency is the resonance frequency of the first portion 11 or the second portion 12, only the portion having the resonance frequency vibrates with high intensity to realize separation during the vibration of the workpiece 10.

In other embodiments, after obtaining the resonant frequency, the generator 233 may also directly act on the portion with the specific vibration frequency, so as to only make the portion vibrate with high intensity, thereby achieving the separation.

The first embodiment is described as an example.

When the workpiece 10 is loaded for the first time, the driving assembly 23 enables the carrier 21 to vibrate at a vibration frequency H1, wherein H1 is greater than 0 Hz. Optionally, in order to avoid the excessive number of invalid detections, before obtaining the resonant frequency, the specific vibration frequency of the similar object may be queried in advance, and according to the query data, one of the values that is closer to the specific vibration frequency may be used as H1. The sensing mechanism 30 senses the second portion 12 of the workpiece 10 and obtains a first amplitude of vibration of the second portion 12 at a vibration frequency H1. Subsequently, the driving assembly 23 makes the stage 21 vibrate at a vibration frequency H2, H2 is greater than H1, the detection mechanism 30 obtains a second vibration amplitude … …, and so on, and the vibration frequency output by the driving assembly 23 is greater and greater, so that the detection mechanism 30 can obtain multiple sets of data of vibration amplitude variation. In this process, it may be a case that the amplitude of the vibration of the second portion 12 obtained by the detection mechanism 30 starts to become smaller after reaching a certain maximum value as the frequency of the vibration output from the driving assembly 23 becomes larger. The highest value is then the maximum amplitude of the vibrations of the second part 12, resulting in the highest value of the vibration frequency, i.e. the resonance frequency of the second part 12.

After the resonant frequency is obtained, the driving assembly 23 drives the stage 21 to vibrate at the frequency, so that the first portion 1 and the second portion 12 synchronously vibrate, and the second portion 12 on the workpiece 10 is separated. Alternatively, the drive assembly 23 acts on the workpiece 10 to cause at least the second portion 12 to vibrate at the frequency, thereby separating the second portion 12 from the workpiece 10.

It will be readily appreciated that since the detection is affected by the accuracy of the existing apparatus, and the increasing amplitude of the vibration frequencies H1, H2 … … during the detection process cannot be infinitely small, the resonance frequency of the second part 12 as described herein refers to the vibration frequency corresponding to the maximum vibration amplitude of the second part 12 that can be obtained within a limited number of detections using the existing detection means capable of detecting the vibration amplitude. The resonant frequency is not necessarily the resonant frequency that the second section 12 should have in a theoretical or ideal situation. In short, the "resonant frequency of the second portion 12" in this application is the vibration frequency corresponding to the maximum vibration amplitude of the second portion 12 in a certain amount of detected data obtained by detection.

In summary, the cooperation of the vibration mechanism 20 and the detection mechanism 30, i.e. the vibration frequency is continuously changed by the vibration mechanism 20, so that the detection mechanism 30 obtains the maximum vibration amplitude of the first part 11 or the second part 12.

In one embodiment, each time drive assembly 23 changes the vibration frequency, an attempt may be made to increase the vibration frequency. Meanwhile, the value of each increment may be constant, i.e., H1, H2, H3 … … constitute equal difference numbers. For example, H1 is 10Hz, H2 is 20Hz, H3 is 30Hz, H4 is 40Hz … …, and so on. Wherein, the difference value can be confirmed according to the pre-inquired data. In addition, when the vibration frequency is increased by the difference a to obtain the vibration amplitude of the second portion 12 at the vibration frequency Hn being the largest, the difference can be narrowed on the basis of Hn in order to find a more suitable resonance frequency for the precise resonance frequency. For example, when the difference A is 10Hz and Hn is 40Hz, the difference can be adjusted to be 1Hz, Hn-1 is used as the initial vibration frequency of the second wheel matching, 31Hz, 32Hz … … 41Hz, 42Hz, 43Hz … …, and so on. By multiple calibrations, a more accurate resonant frequency can be obtained to facilitate more efficient separation of the second portion 12.

In the first embodiment, the driving assembly 23 may only include one set of vibration assemblies, which may be regarded as a vibration generator for driving the stage 21 to vibrate. On the one hand, the vibration assembly can cooperate with the detection mechanism 30 to obtain a desired resonance frequency, and on the other hand, the vibration assembly can drive the carrier 21 to drive the workpiece 10 to vibrate at the vibration frequency. At the moment, the vibration assembly has two functions of acquiring information and realizing separation.

Alternatively, referring to fig. 4, the driving assembly 23 may include a first vibrating assembly 234 and a second vibrating assembly 235; after the workpiece 10 is loaded, the first vibratory assembly 234 cooperates with the detection mechanism 30 to obtain a resonant frequency of the second portion 12 of the workpiece 10; the second vibratory assembly 235 causes the second portion 12 to vibrate at a resonant frequency.

For example, the first vibration component 234 may be a vibration generator for driving the stage 21 to vibrate, so as to cooperate with the detection mechanism 30 to obtain a desired resonance frequency, and thus, to obtain information. And the second vibration component 235 may be a sound wave generator capable of generating sound waves with a set frequency, and then directly acting on the second portion to achieve the separation effect.

These vibration units can employ a mechanism for emitting a physical wave such as a microwave or a light wave in addition to a mechanism for emitting a mechanical wave or a sound wave. The selection may be made based on the structure, material, and characteristics of the workpiece 10. If necessary, resonance may be achieved in a liquid or solid medium in addition to resonance in an air medium.

In the second embodiment, the vibration mechanism 20 and the detection mechanism 30 do not have a cooperative function of acquiring the resonance frequency. After the sensing mechanism 30 obtains information about the amplitude of vibration of the second portion 12 by other means, the desired resonant frequency can be directly calculated and fed back to the vibration mechanism 20 so that the vibration mechanism 20 vibrates at least the second portion 12 of the workpiece 10 at that frequency. Alternatively, the detection means 30 acquires information on the vibration amplitude of the second part 12, feeds back the detected information to the controller 231 of the vibration means 20, calculates a desired resonance frequency by the controller 231, sends out a control signal, increases the control signal by the amplifier 232, and transmits the control signal to the generator 233, thereby finally realizing the resonance separation of the workpiece 10.

Wherein, the detection mechanism 30 may adopt an acoustic wave sensor; when the workpiece 10 vibrates, the second portion 12 of the workpiece 10 generates mechanical vibrations, and the acoustic wave sensor is capable of acquiring the mechanical vibrations of the second portion 12 and converting the mechanical vibrations into electrical signals.

As will be readily understood, mechanical vibration causes vibration of mass points in the surrounding elastic medium (gas, liquid, solid) and propagates from near to far in all directions, forming acoustic waves. The acoustic wave acts on the eardrum of the acoustic wave sensor, and the acoustic wave sensor can convert the acoustic wave into a corresponding electrical signal through vibration of the eardrum. The controller can receive and convert the electrical signal into a digital signal, or other signal that the controller can read and analyze, and finally obtain the vibration amplitude of the second portion 12, and then calculate the resonance frequency of the second portion 12.

By the resonance, the connection between the first part 11 and the second part 12 is lost, and there may occur a case where the first part 11 and the second part 12 are not completely separated, or a separated part is attached to another part, the separation of other parts to be separated is hindered, and the like. To facilitate the separation of the part to be separated from the other part, in one embodiment, the carrier 21 may be suspended and inverted.

Referring to fig. 5, a stage 21 holds the first portion 11 of the workpiece 10 such that the second portion 12 of the workpiece 10 is below the first portion 11. Wherein the second portion 12 of the workpiece 10 is the portion that requires separation and destruction. By inverting the stage 21, the second portion 12 of the workpiece 10 on the stage 21 faces downward, and the second portion 12 has a tendency to fall downward under the influence of its own weight. The self-weight of the second part 12 can further accelerate its disengagement from the first part 11 as soon as the connection position of the second part 12 to the first part 11 is loosened. When the second part 12 is disconnected from the first part 11, the second part 12 will fall off naturally, thereby avoiding interference with other second parts 12 to be separated and avoiding damage to the first part 11.

Further, when the carrier 21 is suspended, a waste frame 50 may be disposed below the carrier 21 to collect the separated second portion 12.

In other embodiments, referring to fig. 3, the separating apparatus further comprises a rotating mechanism 40; after the workpiece 10 resonates for the time T and/or after the workpiece 10 resonates for N times, the rotating mechanism 40 controls the workpiece 10 to rotate so as to separate the second portion 12 from the first portion 11; wherein T is greater than 0, and N is a natural number not less than 1.

In short, after acquiring the resonant frequency of the second portion 12, the vibration mechanism 20 drives the second portion 12 to vibrate at the frequency for at least a certain time (T), and generally, after the resonant frequency of the time T, the second portion 12 can be completely separated from the first portion 11. Alternatively, after acquiring the resonant frequency of the second portion 12, the vibration mechanism 20 drives the second portion 12 to vibrate at least a certain number of times (N) at the resonant frequency, and generally, after N times of resonance, the second portion 12 can be completely separated from the first portion 11.

Surprisingly, however, when there is still a portion of the second portion 12 that is not completely separated from the first portion 11, or when the separated second portion 12 is attached to the first portion 11, the rotating mechanism 40 is activated to rotate the workpiece 10 so that the second portion 12 is completely separated from the first portion 11.

It will be readily appreciated that as the workpiece 10 rotates at a constant speed, the second portion 12 will move centrifugally and thus will tend to move radially along the path of rotation. As the workpiece 10 is rotated, the at least partially uncoupled second portion 12 can be easily disengaged from the first portion 11.

Alternatively, after the workpiece 10 is vibrated at the resonance frequency for a certain time (T) or a certain number of times (N), the rotation mechanism 40 controls the workpiece 10 to make the first rotation motion. Subsequently, the workpiece 10 is vibrated again at the resonance frequency for a certain time or a certain number of times. Subsequently, the turning mechanism 40 controls the workpiece 10 to make a second turning motion … … to effect separation of the second portion 12 by alternately resonating and rotating.

Further, to prevent the rotation of the workpiece 10 from damaging the first portion 11, the rotating mechanism 40 may rotate the workpiece 10 after fixing the first portion 11.

For example, the rotation mechanism 40 may be connected to the stage 21, and when rotation is necessary, the rotation mechanism 40 drives the stage 21 to rotate. At this time, since the fixing unit 22 on the stage 21 is used to fix the first portion 11 of the workpiece 10, the fixing force of the fixing unit 22 received by the first portion 11 during the rotation corresponds to a centripetal force, and the first portion 11 can be prevented from moving eccentrically. While the second part 12, because it is not fixed, is subjected to centrifugal forces and finally detaches from the first part 11. The rotating mechanism 40 may be a motor, a rotary cylinder, or other driving members.

For another example, the rotating mechanism 40 includes: a gripping assembly 41 for taking the workpiece 10 in the vibration mechanism 20; and the rotating driving assembly 42 is connected with the grabbing assembly 41 and can drive the grabbing assembly 41 to rotate so as to drive the workpiece 10 to rotate.

The gripping assembly 41 may be a clamping jaw or a suction cup. When the workpiece 10 needs to rotate, the vibration mechanism 20 stops working, and the grabbing component 41 takes out the workpiece 10 in the vibration mechanism 20; subsequently, the rotation driving unit 42 drives the grasping unit 41 to rotate the workpiece 10. The rotary drive assembly 42 may employ a motor, a rotary cylinder, or the like.

Further, the rotating mechanism 40 further includes a spacing driving assembly 43 connected to the grasping assembly 41 and capable of driving the grasping assembly 41 to approach or move away from the vibrating mechanism 20. When the workpiece 10 needs to rotate, the avoidance driving assembly 43 drives the grabbing assembly 41 to approach the vibrating mechanism 20 so that the grabbing assembly 41 can conveniently grab the workpiece 10, and then the avoidance driving assembly 43 drives the grabbing assembly 41 to move away from the vibrating mechanism 20 so as to avoid interference of the vibrating mechanism 20 when the workpiece 10 rotates. When the workpiece 10 is completely separated from the vibrating mechanism 20, the rotation driving assembly 42 drives the grabbing assembly 41 to rotate the workpiece 10.

Further, the grasping assembly 41 grasps the first portion 11 of the workpiece 10 when grasping the workpiece 10, thereby providing a centripetal force to the rotation of the first portion 11.

Further, when the grasping assembly 41 grasps the workpiece 10, the workpiece 10 may be suspended, and the second portion 12 of the workpiece 10 may be positioned downward, so that the second portion 12 may fall downward under the influence of its own weight.

Optionally, the separation device further comprises a phase change phase, wherein a medium is filled in the phase change phase; when the vibration mechanism 20 vibrates the workpiece 10, the workpiece 10 is positioned in the phase change space and is contacted with the medium; the workpiece 10 is vibrated in a medium which acts on the workpiece 10 to facilitate separation of the first and second portions 11, 12.

In one embodiment, only the vibration mechanism 20 for achieving resonance of the workpiece 10 is provided within the phase variation. Specifically, after the resonant frequency of the workpiece 10 is obtained, the workpiece 10 is set in the vibration mechanism 20 located in the phase-change space, and the workpiece 10 is vibrated at the resonant frequency by the vibration mechanism 20, thereby separating the first portion 11 and the second portion 12.

In another embodiment, the detection mechanism 30 and the vibration mechanism 20 are both in contact with the medium within the phase change phase, and after the workpiece 10 to be separated enters the phase change phase, the resonance frequency is detected within the phase change phase, and the resonance separation is completed.

The medium may be a gas or a liquid (e.g., a non-newtonian fluid). The medium has a certain concentration. After the workpiece 10 enters the medium, the medium contacts the workpiece 10 and interacts with the workpiece 10. When the workpiece 10 is stationary, the workpiece 10 is in the medium, and the states of the two are relatively balanced. When the workpiece 10 vibrates, the medium is driven to flow; as the workpiece 10 is constantly being collided with the medium during its reciprocating movement, the medium will give the workpiece 10 a certain pressure, thereby assisting the separation of the first part 11 and the second part 12.

In particular, the medium may employ oil. At this time, the oil can not only act on the workpiece 10 to apply a force to the surface of the workpiece 10, but also lubricate or maintain the workpiece 10.

The present application provides a separation method for separating a first portion 11 and a second portion 12 of a workpiece 10.

It should be explained first that the workpiece 10 comprises a first part 11 and a second part 12, and the separating device provided in the present application is mainly used to separate the first part 11 from the second part 12, but may also be understood to separate the second part 12 from the first part 11. Typically, the second portion 12 is an unwanted portion of the workpiece 10, while the first portion 11 is a portion that needs to be retained after separation.

In one embodiment, the workpiece 10 is a print constructed by a 3D printer, the print including a valid target portion and an invalid, scaffold portion that needs to be removed. In this case, the subject portion may be considered as the first portion 11 described herein, and the stand portion may be considered as the second portion 12 described herein.

In other embodiments, the workpiece 10 may be other articles having portions to be separated.

For example, the workpiece 10 may be a tool provided with a plurality of loads. Therefore, in the process of transporting the tool, the loaded object can be clamped on the station arranged on the surface of the tool in order to avoid the loaded object from being separated from the tool. When the load is taken down, a certain force needs to be applied to the load or the tooling so as to release the connection between the load and the tooling.

As another example, the workpiece 10 may be a tiled item, similar to a building-together Legao toy. In this case, the workpiece 10 has a plurality of components assembled together, and a certain external force is also required to release the connection of the components.

Also for example, the workpiece 10 may be a bonded article, similar to a scrap bin storing scrap material, an item under test provided with an identity indicating component, or the like. At this time, the portion to be separated may be accumulated in the corner of the portion to be retained, or the portion to be separated may be attached to the surface of the portion to be retained due to the influence of intermolecular attraction because of its small mass. In this case, a certain external force is also required to separate the portion to be separated from the portion to be retained.

The present application does not limit the specific type of workpiece 10.

Referring to fig. 3, the separation method provided by the present application includes the steps of:

s1, acquiring the resonance frequency of a second part 12 of a workpiece 10;

s2. the workpiece 10 is made to vibrate at a resonance frequency in order to separate the first part 11 and the second part 12.

It should be explained that resonance refers to the situation where a physical system vibrates with a larger amplitude at a specific frequency than at other frequencies. And the resonance frequency is the above-mentioned "specific frequency". The amplitude of the physical system is at its maximum when it vibrates at its resonant frequency.

It can be seen that if the physical system continues to vibrate at its resonant frequency, the physical system is subjected to strong dynamic stress, which may result in deformation of its structure and even destruction of its structure.

In the workpiece 10 described in the present application, the first part 11 and the second part 12 may be regarded as one physical system, respectively. After acquiring the resonant frequency of the second portion 12 on the workpiece 10, at least the second portion 12 is caused to vibrate at that frequency; at this time, the maximum amplitude of the movement of the second portion 12, especially the connection position of the second portion 12 to the first portion 11, may be destroyed by the relative movement of the first portion 11 and the second portion 12, thereby facilitating the detachment of the second portion 12 from the first portion 11.

Of course, it is conceivable that the first portion 11 and the second portion 12 may be separated by acquiring the resonant frequency of the first portion 11, and vibrating at least the first portion 11 at that frequency to separate the first portion 11 from the second portion 12.

It is also easily conceivable that both the first part 11 and the second part 12 may be made to vibrate at the resonance frequency of the second part 12 and the first part 11, provided that the resonance frequencies of the first part 11 and the second part 12 do not coincide, the separation of the two being equally possible.

It is added that when an object vibrates at its specific resonant frequency, the object vibrates violently with a high probability of damaging its own structure. Therefore, when the separation method provided by the present application is used to separate the first portion 11 and the second portion 12 of the workpiece 10, it is preferable to resonate portions that are no longer needed or valuable, thereby avoiding damage to the effective portions.

In one embodiment, the workpiece 10 is a print constructed by a 3D printer and includes a target portion and a stand portion. Since the holder portion is a portion that is not actually required, the separation of the subject portion and the holder portion can be efficiently achieved by taking the resonance frequency of the holder portion to resonate at least the holder portion, taking the subject portion as the first portion 11 and the holder portion as the second portion 12.

Specifically, in this embodiment, after the resonance frequency of the cradle portion is obtained, the subject portion and the cradle portion of the print product can be caused to vibrate at the frequency at the same time. The specific resonant frequencies of the object part and the bracket part are different due to different volumes and structures of the object part and the bracket part; therefore, at the resonance frequency of the support portion, the vibration amplitude of the support portion is larger than the vibration amplitude of the subject matter portion. Since the bracket portion is virtually connected to the subject portion, and the connecting position portion of the bracket portion and the subject portion is hollow, the connecting position is easily broken when the bracket portion is violently vibrated, so that the bracket portion is separated from the subject portion.

Of course, in this embodiment, after the resonance frequency of the carrier portion is obtained, only the carrier portion may be caused to vibrate at that frequency. At this time, the bracket portion vibrates violently relative to the target portion, and the connecting position between the bracket portion and the target portion can be damaged until the bracket portion and the target portion are separated.

To acquire the resonant frequency of the second part 12, referring to fig. 4, S1 includes:

s1-1, vibrating the workpiece 10 at the vibration frequency H1, obtaining the vibration amplitude L1 of the second portion 12;

s1-2, vibrating the workpiece 10 at the vibration frequency H2, obtaining the vibration amplitude L2 of the second portion 12;

s1-3, vibrating the workpiece 10 at the vibration frequency H3, obtaining the vibration amplitude L3 of the second portion 12;

……

s1-n. vibrating the workpiece 10 at the vibration frequency Hn, obtaining the vibration amplitude Ln of the second portion 12;

here, the vibration amplitude La of the second part 12 is the largest at the vibration frequency Ha, which is the resonance frequency of the second part 12.

Specifically, after the workpiece 10 to be processed is loaded, the workpiece 10 is first vibrated at a vibration frequency H1, where H1 is greater than 0 Hz. Optionally, to avoid the excessive number of invalid detections, before obtaining the resonant frequency, a specific vibration frequency of a similar object may be queried in advance, and according to the query data, a value closer to the specific vibration frequency may be used as H1. During the vibration of the workpiece 10, the second portion 12 is mechanically vibrated to generate a vibration wave, and by detecting the vibration wave, the vibration amplitude L1 of the second portion 12 at the vibration frequency H1 can be obtained. The vibration frequency H2 is obtained by increasing or decreasing H1, and correspondingly detected, so that the vibration amplitude L2 is obtained. Then increasing or decreasing H2, correspondingly detecting to obtain vibration amplitude L3 … …

When the vibration frequencies H1, H2, H3 … … Hn are random but different values, it may happen that the data are connected as irregular broken lines when the amplitude variation of the second portion 12 is statistically plotted. When the obtained value of the vibration amplitude of the second portion 12 is sufficiently large, the maximum value thereof is selected as the resonance frequency of the second portion 12. When the statistical value is not sufficient to cover the whole range of possible occurrence of at least one maximum amplitude of the second portion 12, the vibration frequency corresponding to the maximum value obtained (the maximum value is close to the maximum amplitude of the similar object in the query) can be used as the basis, and the vibration frequency is continuously decreased or increased to finally obtain a more accurate resonance frequency.

More specifically, when the vibration frequency H1 < vibration frequency H2 and the vibration amplitude L1 < vibration amplitude L2, it is preferable to set the vibration frequency H3 > the vibration frequency H2 so as to obtain the resonance frequency. That is, the vibration frequencies H1, H2, and H3 … … Hn are increased. Until the vibration frequency Ha-1 is less than the vibration frequency Ha and less than the vibration frequency Ha +1, the vibration amplitude La-1 is less than the vibration amplitude La, but the vibration amplitude La is more than the vibration amplitude La + 1; at this time, the vibration amplitude La is a maximum amplitude obtained in the current detection range, and the vibration frequency Ha corresponding to the maximum amplitude is the most accurate resonance frequency obtained in the current detection range.

However, it is easy to understand that since the detection is affected by the accuracy of the existing equipment, and the increasing amplitudes of the vibration frequencies H1, H2, and H3 … … Hn during the detection cannot be infinitely small, the resonance frequency of the second part 12 obtained by the detection in the present application refers to the vibration frequency corresponding to the maximum vibration amplitude of the second part 12 that can be obtained within a limited number of detections by using the existing detection device capable of detecting the vibration amplitude. The resonant frequency is not necessarily the resonant frequency that the second section 12 should have in a theoretical or ideal situation. In short, the "resonant frequency of the second portion 12" in this application is the vibration frequency corresponding to the maximum vibration amplitude of the second portion 12 in a certain amount of detected data obtained by detection.

By increasing the vibration frequency of the workpiece 10, the amplitude of the vibration of the second portion 12 obtained by the detection mechanism 30 starts to decrease after reaching a certain maximum value. The highest value is then the maximum vibration amplitude of the second part 12, resulting in a vibration frequency of the highest value, i.e. the resonance frequency of the second part 12 obtained in the current detection process.

Further, when the vibration amplitude of the second portion 12 is detected, in order to improve the detection efficiency, the differences of the vibration frequencies H1, H2, H3 … … Hn and the like may be increased. At this time, the difference between any two adjacent vibration frequencies is equal, so that the vibration mechanism for providing the second portion 12 with the vibration force operates efficiently.

Of course, it is conceivable that the smaller the difference between any two adjacent vibration frequencies, the better, in order to improve the accuracy of the final detection result. However, the smaller the difference between any two adjacent vibration frequencies is, the larger the number of detections and the longer the detection time, in the process from the vibration frequency H1 to the vibration frequency Ha + 1.

For this purpose, the detection may be divided into a plurality of stages, in each of which the vibration frequencies used in the test are incrementally different, and the difference between any two adjacent vibration frequencies is the same until a maximum vibration amplitude in the stage is obtained. Then, in the next stage, the difference between any two adjacent vibration frequencies is smaller than the difference in the previous stage, and at the same time, the first vibration frequency in the next stage is greater than the vibration frequency in the previous stage before the maximum vibration amplitude is obtained and is smaller than the vibration frequency in the previous stage after the maximum vibration amplitude is obtained.

Specifically, S1 includes: a first testing stage, vibrating the workpiece 10 at vibration frequencies H1', H2', H3' … … to obtain vibration amplitudes L1', L2', L3' … … of the second part 12, wherein the vibration frequencies H1', H2', H3' … … are in equal difference increasing, and the difference value of any two adjacent vibration frequencies is a, so that the vibration amplitude La ' of the second part 12 is maximum at the vibration frequency Ha '; a second test phase, in which the workpiece 10 is made to vibrate at vibration frequencies H1'', H2'', H3'', … …, and the vibration amplitudes L1'', L2'', L3'', … …, the vibration frequencies H1'', H2'', H3'', H … … of the second part 12 are obtained with increasing difference, and the difference value between any two adjacent vibration frequencies is B; wherein Ha-1' < H1' < Ha +1', B < A.

As is readily understood, Ha-1 '= Ha' -a, Ha +1 '= Ha' + a.

For example, assume that in the first test phase, the workpiece 10 is vibrated at 10Hz, 20Hz, and 30Hz … …, where a is 10. At the end of the first test phase it is known that the workpiece 10 has the greatest amplitude of vibration at a frequency of 50 Hz. Entering the second test phase, B may be set to 2. At this time, the first vibration frequency H1 ″ of the workpiece 10 in the second test stage is greater than 40Hz and less than 60 Hz. For the convenience of continuous testing, H1 ″ is preferably 42Hz, that is, in the second test stage, the workpiece 10 is vibrated at 42Hz, 44Hz, 46Hz … …. Until obtaining a vibration amplitude La ″ of the second portion 12 at the vibration frequency Ha ″ which is the maximum of the second test phase and greater than the vibration amplitude La ″ > the vibration amplitude La'. At this time, the vibration frequency Ha ' is more accurate than the vibration frequency Ha ', and the vibration amplitude of the second portion 12 at the vibration frequency Ha ' is larger.

It is easy to imagine that, after obtaining the vibration frequency Ha ' by the first test stage, the optimum resonance frequency of the second part 12 can be greater than the vibration frequency Ha-1' and less than the vibration frequency Ha +1 '. At this time, it cannot be determined whether the optimum resonance frequency is greater than or less than Ha'. Therefore, in the second test stage, the workpiece 10 can be caused to vibrate at a vibration frequency that is progressively different. Continuing with the above example, in the second testing phase, the workpiece 10 was vibrated at frequencies of 58Hz, 56Hz, and 54Hz … ….

Alternatively, H1 ″ = Ha-1' + B.

In some embodiments, it is found through the first testing phase that the vibration amplitude L1 'of the second portion 12 at the vibration frequency H1' is greater than the vibration amplitude L2 'at the vibration frequency H2', and at this time, it is not sufficient to continue to increase the vibration frequency, and therefore, the vibration frequency H3 '< vibration frequency H1' is set. At this time, the vibration frequencies H1', H3', H4 ' are decreased in equal difference.

Alternatively, H1 ″ = Ha +1' -B.

Alternatively, when the workpiece 10 is subjected to the first vibration detection, a smaller value in the resonance frequency range thereof is preferably used as the first vibration frequency, so that the workpiece 10 can be subjected to the amplitude detection simply and efficiently.

If desired, S1 may further include a third testing stage in which the workpiece 10 is vibrated at vibration frequencies H1 "', H2" ', H3 "' … … to obtain vibration amplitudes L1" ', L2 "', L3" ' … … vibration frequencies H1 "', H2" ', H3 "' … … of the second portion 12 in either an incremental or decremental manner with the difference between any two adjacent vibration frequencies being C. At this time, in the second test phase, it is obtained that the amplitude La ″ of the vibration of the second portion 12 is maximum at the frequency Ha ″; ha-1' ' < H1' ' ' < Ha +1' '.

Wherein Ha-1'' = Ha '' -B, Ha +1'' = Ha '' + B.

Alternatively, H1 "= Ha-1" + B; alternatively, H1 "= Ha + 1" -B.

Continuing with the above example, assume that in the second testing phase, the workpiece 10 is vibrated at a frequency of 48Hz to a maximum amplitude. Thus, entering the third test phase, C may be set to 1, so that the workpiece 10 is vibrated at frequencies of 47Hz, 48Hz, 49 Hz.

Similarly, S1 may also include a fourth test phase, a fifth test phase … …, etc., if desired. By continuously narrowing the range of the vibration frequency and reducing the value of the vibration frequency increasing or decreasing in the next stage, a more accurate resonance frequency can be obtained.

Of course, when the workpiece 10 enters the second testing stage, it may occur that the vibration amplitude generated by the second portion 12 at the vibration frequency H1 ″ is greater than the vibration amplitude generated by the second portion at the vibration frequency H2 ″, and the vibration frequency H1 ″ is more precise than the vibration frequency Ha'. Continuing with the above example, assume that in the second testing phase, the workpiece 10 is vibrated to a maximum amplitude at a frequency of 42 Hz. Entering the third test phase, C may be set to 1 so that the workpiece 10 is vibrated at frequencies of 41Hz, 42Hz, 43 Hz. If the maximum amplitude of vibration of the workpiece 10 at a frequency of 41Hz is obtained from the third test stage. Entering the fourth test phase, D may be set to 0.5 and the workpiece 10 is vibrated at 40.5Hz, 41Hz, 41.5 Hz. If the maximum amplitude of vibration of the workpiece 10 at a frequency of 41.5Hz is obtained in the fourth test stage. Entering the fifth test phase, E may be set to 0.2 and the workpiece 10 is vibrated at frequencies of 41.2Hz, 41.4Hz, 41.6Hz, 41.8 Hz. If the workpiece 10 obtained in the fifth test stage has the maximum vibration amplitude at the frequency of 41.6Hz, it can be seen that 41.6Hz is the most accurate resonance frequency obtained through the five-round test by using the method. However, the sixth test phase, seventh test phase … …, etc. may also proceed if desired.

In short, through a test phase, a maximum vibration amplitude La and a corresponding vibration frequency Ha can be obtained. After entering the next testing stage, the difference is adjusted to X, so that the first vibration frequency adopted in the next stage is Ha-1+ X, and the second vibration frequency is Ha-1+ X + X … … until a new maximum amplitude is obtained. Or, the first vibration frequency adopted in the next stage is Ha +1-X, and the second vibration frequency is Ha +1-X-X … …

When the maximum amplitude obtained in the next testing stage is the same as the maximum amplitude obtained in the previous testing stage, the maximum amplitude can be further tested within the frequency range narrowed again by reducing the difference.

Of course, in other embodiments, after each maximum amplitude is obtained, the vibration frequency corresponding to the amplitude may be used as a basis, the vibration frequency may be randomly increased or decreased to obtain the vibration frequency for the next test until a larger amplitude is obtained, and then, the vibration frequency may be continuously increased or decreased to obtain the vibration frequency … … for the next test based on the vibration frequency corresponding to the larger amplitude.

In S1, in order to obtain the amplitude of the second portion 12, the workpiece 10 needs to be vibrated; in S2, the separation of the second portion 12 is achieved by resonance, and the workpiece 10 also needs to be vibrated. During the vibration, the workpiece 10 may reciprocate in the vertical direction, may reciprocate in the horizontal direction, may reciprocate in the oblique direction, or may reciprocate in a curved line.

Further, in S2, it is necessary to break the connection site of the first part 11 and the second part 12 by resonance. Therefore, at least the second portion 12 of the workpiece 10 can be made to vibrate in a direction perpendicular to the direction in which the first portion 11 and the second portion 12 are connected.

Specifically, the workpiece 10 reciprocates in a first direction; the second portion 12 of the workpiece 10 is disposed on the first portion 11 of the workpiece 10 in the second direction; the first direction intersects the second direction. For example, in the embodiment shown in fig. 1 and 2, the workpiece 10 is a print constructed by a 3D printer, the first portion 11 is a target portion (cylinders 11' and 12 ') therein, and the second portion 12 is a stand portion (stand 13 ') therein. In the figure, the support 13' is arranged in a vertical direction on the portion of the subject constituted by the two cylinders 11' and 12 '. Therefore, the workpiece 10 is caused to vibrate in any direction in the horizontal plane. Alternatively, the workpiece 10 is caused to vibrate in any direction other than the vertical direction. At this time, the vibration of the workpiece 10 causes the second portion 12 to have a force that deforms in the first direction, and the direction of the force acts on the connection position, and the first portion 11 and the second portion 12 are more likely to separate.

After the workpiece 10 is vibrated back and forth along the direction different from the second direction, the situation that the connecting position is partially broken but the parts are still connected can occur, and in order to further stimulate the connecting position of the first part 11 and the second part 12 and separate the two parts, the vibration mechanism 20 also drives the workpiece 10 to move back and forth along the third direction; the third direction is parallel to the second direction.

For example, in the embodiment shown in fig. 1 and 2, the vibration mechanism 20 drives the 3D printed article to reciprocate in the horizontal direction after a certain time, or, at the same time, the vibration mechanism 20 drives the 3D printed article to reciprocate in the vertical direction to facilitate the breaking and the detachment of the connection position.

It is to be added that in S2, the second part 12 is made to vibrate at the resonance frequency; alternatively, in S2, the first portion 11 and the second portion 12 of the workpiece 10 are caused to vibrate synchronously at the resonance frequency.

Specifically, when the resonance frequency of the second portion 12 is obtained, the entire workpiece 10 can be vibrated at the frequency, and at this time, the first portion 11 and the second portion 12 are vibrated in synchronization, and the specific resonance frequencies of the first portion 1 and the second portion 12 are different from each other, so that when the second portion 12 is vibrated at the frequency in a severe manner, the amplitude of the first portion 11 is small, the first portion 11 is not damaged, and the second portion 12 can be separated from the first portion 11.

Alternatively, after the resonant frequency of the second portion 12 is obtained, only the second portion 12 of the workpiece 10 may be caused to vibrate at that frequency, at which time the second portion 12 vibrates vigorously relative to the first portion 11 on the workpiece 10, thereby achieving separation.

Further, in S2, before the workpiece 10 is vibrated at the resonance frequency, the workpiece 10 is put into a medium so that the workpiece 10 is vibrated in the medium, and the medium acts on the workpiece 10 to facilitate separation of the first part 11 and the second part 12.

The medium may be a gas or a liquid (e.g., a non-newtonian fluid). The medium has a certain concentration. After the workpiece 10 enters the medium, the medium contacts the workpiece 10 and interacts with the workpiece 10. When the workpiece 10 is stationary, the workpiece 10 is in the medium, and the states of the two are relatively balanced. When the workpiece 10 vibrates, the medium is driven to flow; as the workpiece 10 is constantly being collided with the medium during its reciprocating movement, the medium will give the workpiece 10 a certain pressure, thereby assisting the separation of the first part 11 and the second part 12.

In particular, the medium may employ oil. At this time, the oil can not only act on the workpiece 10 to apply a force to the surface of the workpiece 10, but also lubricate or maintain the workpiece 10.

Further, the separation method provided by the present application further includes S3: after the workpiece 10 resonates for the time T, and/or after the workpiece 10 resonates for N times, the workpiece 10 is rotated to separate the second portion 12 from the first portion 11; wherein T is greater than 0, and N is a natural number not less than 1.

Briefly, after acquiring the resonant frequency of the second portion 12, the second portion 12 of the workpiece 10 is caused to vibrate at least at that frequency for a period of time (T), and typically, after the resonant frequency has elapsed for the period of time T, the second portion 12 may be completely separated from the first portion 11. Alternatively, after acquiring the resonant frequency of the second portion 12, the second portion 12 of the workpiece 10 may be vibrated at least a certain number of times (N) at that frequency, and typically, after N times of resonance, the second portion 12 may be completely separated from the first portion 11.

Surprisingly, however, there may still be a portion of the second portion 12 that is not completely detached from the first portion 11, or, alternatively, the detached second portion 12 may be attached to the first portion 11, such that the workpiece 10 is driven to rotate so that the second portion 12 is completely detached from the first portion 11.

It will be readily appreciated that during rotation, a centripetal force may be provided to the first portion 11 to ensure that, as the workpiece 10 rotates at a constant speed, only the second portion 12 is centrifugally moved, with the second portion 12 having a tendency to move radially along the path of rotation. As the workpiece 10 is rotated, the at least partially uncoupled second portion 12 can be easily disengaged from the first portion 11.

S3 may be an optional step. That is, only when the second portion 12 cannot be completely separated from the first portion 11, one rotation of the workpiece is performed. At this time, the workpiece 10 may be detected by a sensor or a CCD (Charge-coupled Device), and the workpiece 10 is rotated when the presence of the second portion 12 on the workpiece 10 requiring further processing is detected.

S3 may also be a conventional step.

For example, after the workpiece 10 is vibrated at the resonance frequency for a certain time or a certain number of times, the workpiece 10 makes a first rotational motion. Subsequently, the workpiece 10 is vibrated again at the resonance frequency for a certain time or a certain number of times. Subsequently, the workpiece 10 is subjected to a second rotational movement … … to effect separation of the second portion 12 by alternately resonating and rotating.

For another example, the workpiece 10 makes one rotation movement each time the workpiece 10 vibrates at the resonance frequency for a certain time or a certain number of times.

The separation method provided by the application can be realized by adopting the separation device.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.