阅读说明：本技术 一种自动化曲面研磨装置及其研磨方法 (Automatic curved surface grinding device and grinding method thereof ) 是由 李倩 卫青化 赵道一 何飞超 于 2021-07-01 设计创作，主要内容包括：本发明公开了一种自动化曲面研磨装置及其研磨方法,属于研磨装置技术领域。包括工作台,所述工作台设有一水平工作面；所述水平面上设有置物单元；第一辅助组件,包括驱动单元；所述驱动单元连接有第一转动轴,所述第一转动轴上连接有限位件；所述置物单元内部设置有多组固定架；处理组件设于所述置物单元上方；第二辅助组件设于所述水平工作面并与所述处理组件连接。圆柱形或类圆柱型的工件被夹持在限位件内,第一转动轴带动工件进行转动,实现360度旋转,处理组件在支撑柱的带动下沿着工件长度方向进行往复运动,设定工件和处理组件的运动轨迹,能实现处理组件对工件进行全曲面清刷研磨,研磨效率高,研磨效果好。(The invention discloses an automatic curved surface grinding device and a grinding method thereof, and belongs to the technical field of grinding devices. The device comprises a workbench, wherein the workbench is provided with a horizontal working surface; an object placing unit is arranged on the horizontal plane; a first auxiliary assembly including a driving unit; the driving unit is connected with a first rotating shaft, and a limiting piece is connected to the first rotating shaft; a plurality of groups of fixing frames are arranged in the object placing unit; the processing assembly is arranged above the object placing unit; the second auxiliary assembly is arranged on the horizontal working surface and connected with the processing assembly. Cylindrical or cylinder-like's work piece is by the centre gripping in the locating part, and first axis of rotation drives the work piece and rotates, realizes 360 degrees rotations, and the processing subassembly carries out reciprocating motion along work piece length direction under the drive of support column, sets for the motion trail of work piece and processing subassembly, can realize that the processing subassembly carries out the full curved surface to the work piece and brush the grinding, and the grinding efficiency is high, and it is effectual to grind.)

1. An automated curved surface grinding apparatus, comprising:

the workbench comprises a horizontal working surface; the object placing unit is arranged on the horizontal work and is hollow inside;

a first auxiliary assembly including a driving unit; the first rotating shaft is connected with the driving unit at one end, penetrates through the object placing unit at the other end and extends to the inside of the object placing unit; the limiting piece is connected with the other end of the first rotating shaft extending to the inside of the object placing unit; a plurality of groups of fixed frames arranged in the object placing unit along the length direction of the first rotating shaft;

the processing assembly is arranged above the object placing unit and is set to carry out two different processing modes on the workpiece;

the second auxiliary assembly is arranged on the horizontal working surface and connected with the processing assembly and comprises two groups of first sliding assemblies and second sliding assemblies which are arranged oppositely.

2. An automated curved surface grinding apparatus as defined in claim 1, wherein:

the first sliding assembly comprises a first fixing frame arranged on the working surface; the first screw rod oppositely-pulling sliding table module is arranged on the first fixing frame along the length direction of the first fixing frame; the second screw rod opposite-pulling sliding table module is perpendicular to the length direction of the first fixing frame and arranged on the first screw rod opposite-pulling sliding table module;

the second sliding assembly comprises a second fixed frame arranged on the working surface; a third screw rod oppositely-pulling sliding table module arranged on the second fixing frame along the length direction of the second fixing frame; and the fourth screw rod oppositely-pulling sliding table module is perpendicular to the length direction of the second fixing frame and arranged on the third screw rod oppositely-pulling sliding table module.

3. An automated curved surface grinding apparatus as defined in claim 2, wherein:

the processing assembly comprises a first processing unit and a second processing unit;

the first processing unit comprises a first fixed seat connected to the second screw rod split sliding table module, a first transmission piece vertically installed on the first fixed seat, and a first processing head vertically connected to the first transmission piece;

the second processing unit comprises a second fixed seat connected to the fourth screw rod opposite-pulling sliding table module, a second transmission piece vertically installed on the second fixed seat, and a second processing head vertically connected to the second transmission piece.

4. An automated curved surface grinding apparatus as defined in claim 3, wherein:

the first processing head comprises a mounting seat, a plurality of groups of bases are arranged on the mounting seat, and the arrangement density degree of the bases is changed from density to density along the direction from the edge to the center of the mounting seat;

a plurality of bristles are arranged on the base; the length of the bristles is reduced in sequence along the direction from the edge to the center of the mounting seat; the surface formed between the bristles is arc-shaped.

5. An automated curved surface grinding apparatus as defined in claim 3, wherein:

the second processing head comprises a grinding seat, and a plurality of groups of grinding sheet units are arranged on the grinding seat; the plurality of groups of grinding sheet units form cambered surfaces with certain radian;

an extensible member is arranged between the grinding sheet unit and the grinding seat, and the length of the extensible member is sequentially increased along the direction from the edge of the grinding seat to the center; when the abrasive sheet unit presses and contacts the surface of the workpiece, the extensible member extends and contracts to different degrees according to the curvature of the surface of the workpiece.

6. An automated curved surface grinding apparatus as defined in claim 4, wherein:

and a first rotating seat is arranged between the base and the mounting seat and drives the base to move forwards or backwards.

7. An automated curved surface grinding apparatus according to claim 1, further comprising:

the fixing frames are arranged in a sparse-to-dense mode along the length direction far away from the first rotating shaft; the surface of the fixing frame is wrapped with a flexible wear-resistant layer.

8. An automated curved surface grinding apparatus as defined in claim 1, wherein:

the relationship among the horizontal direction velocity V of the first processing head or the second processing head, the angular velocity ω of the first rotating shaft, and the workpiece length L is as follows:

n is the number of turns of the first rotating shaft, and is an integer greater than 0.

9. A grinding method using the automated grinding apparatus according to claims 1 to 8, comprising the steps of:

the method comprises the following steps: placing a cylindrical or cylinder-like workpiece in the storage unit;

step two: starting a first rotating shaft, wherein the first rotating shaft drives the workpiece to perform reciprocating circumferential rotation;

step three: the first processing unit and the first processing unit reciprocate along the length direction of the workpiece to grind the whole surface of the workpiece.

Technical Field

The invention relates to the technical field of grinding devices, in particular to an automatic curved surface grinding device and a grinding method thereof.

Background

Grinding is a process of finishing the surface of a workpiece, the acting objects comprise various metal and non-metal materials, the shape of the processed surface comprises a plane and a curved surface, and the curved surface comprises an inner cylindrical surface, an outer cylindrical surface, a conical surface, a concave-convex spherical surface, a thread, a tooth surface or other surfaces.

In the prior art, as disclosed in application No. 2016214333279, "a curved surface grinding and polishing apparatus" includes: the polishing machine comprises a machine table, an upper working table surface, a lifting mechanism and a rotary driving mechanism, wherein an upper polishing disc is arranged at the lower end of the upper working table surface, a lower polishing disc is arranged at the top end of the machine table, the upper polishing disc is located above the lower polishing disc, the lifting mechanism can control the upper working table surface to move up and down, and the rotary driving mechanism can drive the upper polishing disc and the lower polishing disc to rotate. The number of going up the polishing dish can be more than two, can set for the number of going up the polishing dish as required, and the curved surface appears as the finished product, goes up the polishing dish and can polish and polish according to the finished product profile, is connected with the cylinder at last polishing dish, and the lift of polishing dish is gone up in the cylinder controllable to the position of polishing dish is gone up in the shape adjustment according to the work piece, improves the machining precision.

However, the upper polishing disk can only vertically move in the vertical direction through the lifting mechanism, and can rotate and move circularly in the horizontal direction through the rotary driving mechanism, the motion track of the upper polishing disk determines the range of grinding and polishing of the upper polishing disk, and when a curved workpiece with a large radian is ground, the upper polishing disk can only grind partial curved surfaces, and cannot grind all curved surfaces, so that the grinding effect is poor.

Disclosure of Invention

The purpose of the invention is as follows: in order to solve the above problems, the present invention provides an automatic polishing apparatus and a polishing method thereof.

The technical scheme is as follows: an automated curved surface grinding apparatus comprising: the workbench comprises a horizontal working surface; the object placing unit is arranged on the horizontal work and is hollow inside; a first auxiliary assembly including a driving unit; the first rotating shaft is connected with the driving unit at one end, penetrates through the object placing unit at the other end and extends to the inside of the object placing unit; the limiting piece is connected with the other end of the first rotating shaft extending to the inside of the object placing unit; a plurality of groups of fixed frames arranged in the object placing unit along the length direction of the first rotating shaft; the processing assembly is arranged above the object placing unit and is set to carry out two different processing modes on the workpiece; the second auxiliary assembly is arranged on the horizontal working surface and connected with the processing assembly and comprises two groups of first sliding assemblies and second sliding assemblies which are arranged oppositely and have opposite movement directions.

In a further embodiment, the first sliding assembly comprises a first fixing frame arranged on the working surface; the first screw rod oppositely-pulling sliding table module is arranged on the first fixing frame along the length direction of the first fixing frame; the second screw rod opposite-pulling sliding table module is perpendicular to the length direction of the first fixing frame and arranged on the first screw rod opposite-pulling sliding table module;

the second sliding assembly comprises a second fixed frame arranged on the working surface; a third screw rod oppositely-pulling sliding table module arranged on the second fixing frame along the length direction of the second fixing frame; and the fourth screw rod oppositely-pulling sliding table module is perpendicular to the length direction of the second fixing frame and arranged on the third screw rod oppositely-pulling sliding table module.

Through adopting above-mentioned technical scheme, first slip subassembly and second slip subassembly have the motion in two directions respectively.

In a further embodiment, the processing assembly comprises a first processing unit and a second processing unit;

the first processing unit comprises a first fixed seat connected to the second screw rod split sliding table module, a first transmission piece vertically installed on the first fixed seat, and a first processing head vertically connected to the first transmission piece;

the second processing unit comprises a second fixed seat connected to the fourth screw rod opposite-pulling sliding table module, a second transmission piece vertically installed on the second fixed seat, and a second processing head vertically connected to the second transmission piece.

Through adopting above-mentioned technical scheme, realize clearing up the impurity of difference on the work piece, and the working process mutual noninterference of first processing unit and second processing unit.

In a further embodiment, the first processing head comprises a mounting seat, a plurality of groups of bases are arranged on the mounting seat, and the arrangement density degree of the bases is changed from density to density along the direction from the edge to the center of the mounting seat;

a plurality of bristles are arranged on the base; the length of the bristles is reduced in sequence along the direction from the edge to the center of the mounting seat; the surface formed between the bristles is arc-shaped.

Through adopting above-mentioned technical scheme, the contact of increase first processing head and work piece is become the face contact by line contact, improves area of contact, guarantees treatment effeciency.

In a further embodiment, the second processing head comprises a grinding seat, and a plurality of groups of grinding sheet units are arranged on the grinding seat; the plurality of groups of grinding sheet units form cambered surfaces with certain radian;

an extensible member is arranged between the grinding sheet unit and the grinding seat, and the length of the extensible member is sequentially increased along the direction from the edge of the grinding seat to the center; when the abrasive sheet unit presses and contacts the surface of the workpiece, the extensible member extends and contracts to different degrees according to the curvature of the surface of the workpiece.

By adopting the technical scheme, the arc surface formed by the plurality of groups of grinding sheet units changes the linear contact with the workpiece into multi-line contact or surface contact, so that the contact area is increased, and the grinding efficiency is improved; aiming at workpieces with different curvatures, the extensible piece can be in contact with the curved surface better according to the extension and retraction of different degrees, and a better grinding effect is realized.

In a further embodiment, a first rotating seat is arranged between the base and the mounting seat, and the first rotating seat drives the base to move forward or backward.

Through adopting above-mentioned technical scheme, realize that the brush hair has different operating condition, realize that different power can more clear up impurity to the work piece surface.

In a further embodiment, the fixing frames are arranged from sparse to dense along the length direction away from the first rotating shaft; the surface of the fixing frame is wrapped with a flexible wear-resistant layer.

Through adopting above-mentioned technical scheme, support the work piece of keeping away from the one end of locating part, keep the work piece can not take place the slope because of the action of gravity, flexible wearing layer has reduced the mount itself to the frictional influence on workpiece surface, has guaranteed the slew velocity of work piece, has reduced the influence to workpiece surface's roughness.

In a further embodiment, the relationship between the horizontal direction velocity V of the first or second processing unit, the angular velocity ω of the first rotation axis, and the workpiece length L is as follows:

n is the number of turns of the first rotating shaft, and is an integer greater than 0.

By adopting the technical scheme, after the workpiece is limited to rotate for N weeks, the walking length of the first processing unit or the second processing unit is equal to the length of the effective workpiece, and the uniformity of the workpiece to be brushed or grinded is higher.

The invention provides another technical scheme, and the grinding method of the automatic grinding device is characterized by comprising the following steps of:

the method comprises the following steps: placing a cylindrical or cylinder-like workpiece in the storage unit;

step two: starting a first rotating shaft, wherein the first rotating shaft drives the workpiece to perform reciprocating circumferential rotation;

step three: the first processing unit and the first processing unit reciprocate along the length direction of the workpiece to grind the whole surface of the workpiece.

Has the advantages that: cylindrical or cylinder-like's work piece is by the centre gripping in the locating part, and first axis of rotation drives the work piece and rotates, realizes 360 degrees rotations, and the processing subassembly carries out reciprocating motion along work piece length direction under the drive of support column, sets for the motion trail of work piece and processing subassembly, can realize that the processing subassembly carries out the full curved surface to the work piece and brush the grinding, and the grinding efficiency is high, and it is effectual to grind.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of a first auxiliary assembly of the present invention.

Fig. 3 is a schematic structural view of a second slide module of the present invention.

FIG. 4 is a schematic diagram of a first processing head according to another embodiment of the invention.

FIG. 5 is a schematic diagram of a second processing head according to another embodiment of the invention.

Description of reference numerals: horizontal working face 1, put thing unit 2, drive unit 3, first axis of rotation 4, locating part 5, mount 6, mount pad 7, base 8, brush hair 9, first rotation seat 10, second fixing base 11, second driving medium 12, second processing head 13, grind seat 14, grinding unit 15, extensible member 16, first mount 16, first lead screw is to drawing slip table module 17, second lead screw is to drawing slip table module 18, second mount 19, third lead screw is to drawing slip table module 20, fourth lead screw is to drawing slip table module 21.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In order to solve the problems in the prior art, the applicant has conducted in-depth analysis on various existing schemes, which are specifically as follows:

some cylindrical or quasi-cylindrical workpieces, the surface is smooth and clean when just beginning to use, under long-time use, the surface is inevitable to adhere some greasy dirt or dust difficult to clean, if the workpiece is a metal workpiece, the surface also can produce some rusty spots or large-area rusts, so the workpiece needs to be grinded and cleaned, and the surface becomes clean and smooth again, however, the applicant finds in investigation and analysis that, in the prior art, as disclosed in application No. 2016214333279, "a curved surface grinding and polishing device" is disclosed, the specific structure is not repeated here, and the structure of the application can know that the upper polishing disc of the application can vertically move in the vertical direction and rotate in the horizontal direction, and if the upper polishing disc is used for the curved surface workpiece, the upper polishing disc can only grind and polish the surface of the curved surface part, and the grinding effect is poor.

The applicant proposes the solution, as shown in fig. 1 to 5, of providing an automated curved surface grinding device comprising a table, a first auxiliary assembly, a processing assembly and a second auxiliary assembly. The workbench comprises a horizontal working surface, an object placing unit is arranged on the horizontal working surface, and the object placing unit is hollow; the first auxiliary assembly comprises a driving unit, a first rotating shaft, a limiting piece and a plurality of groups of fixing frames. First rotation axis one end is connected with drive unit, and the other end runs through to put in the thing unit extends to putting the thing unit in, and one of extending to putting in the thing unit at first rotation axis is served and is connected with the locating part for to the centre gripping of work piece, first rotation axis and locating part pass through threaded connection or splined connection or other detachable connected mode, with the one end centre gripping of work piece in the locating part, first rotation axis rotates and drives the work piece and rotate. The limiting part is a three-jaw or four-jaw clamping mechanical jaw, one end of the limiting part is connected with the first rotating shaft through a thread or a spline, and the mechanical jaw at the other end is used for clamping a workpiece. The multiple groups of fixing frames are arranged inside the object placing unit, and the fixing frames are Y-shaped fixing frames and are welded or fixed with the object placing unit in an adhesive mode. The processing unit is arranged above the object placing unit, and the second auxiliary assembly is arranged on the horizontal working surface and connected with the processing unit; the second auxiliary assembly comprises a first sliding assembly and a second sliding assembly, and the first sliding assembly and the second sliding assembly are arranged oppositely

In a further embodiment, the first sliding assembly includes a first fixing frame, a first lead screw pair-pulling sliding table module and a second lead screw pair-pulling sliding table module. The first fixing frame is fixed on the horizontal working face, the first lead screw is used for oppositely pulling the sliding table module along the length direction of the first fixing frame, and the second lead screw is used for oppositely pulling the sliding table module perpendicular to the length direction of the first fixing frame.

The second sliding assembly comprises a second fixing frame, a third screw rod oppositely-pulling sliding table module and a fourth screw rod oppositely-pulling sliding table module. The second mount is fixed on the horizontal working face, and the third lead screw is to drawing the slip table module and setting up along second mount length direction, and the fourth lead screw is to drawing the perpendicular second mount length direction setting of slip table module.

In a further embodiment, the surface of the workpiece to be ground contains substances to be removed, such as oil, dust and rust, and the adaptive processing tools and modes are different for different types of substances, so as to improve the working efficiency and save the cost, the following proposal is proposed:

the processing assembly comprises a first processing unit and a second processing unit; the first processing unit comprises a first fixed seat, a first transmission piece and a first processing head; the second processing unit comprises a second fixed seat, a second transmission piece and a second processing head. First fixing base passes through bolted connection on the second lead screw is to drawing slip table module, and first transmission piece is vertical to be installed on first fixing base, and first transmission piece can stretch out and draw back and make first processing head reciprocate, and first transmission pole is telescope tube or electronic flexible sleeve axle, and first processing head includes a plurality of brush hairs, is plastics brush hair or other stereoplasm brush hairs. The second fixing base is connected to the fourth screw rod oppositely-pulling sliding table module through a bolt, the second transmission piece is vertically installed on the second fixing base, the second transmission piece can stretch out and draw back to enable the second processing head to move up and down, the second fixing base is identical to the first fixing base in structure, and the second transmission piece is identical to the second transmission piece in structure. The second processing head is a polishing head made of metal or nonmetal.

The first treatment unit cleans substances such as oil stain and dust by brushing, and the second treatment unit grinds substances such as rust spots which are difficult to clean; the working processes of the two are not affected mutually. The first processing unit and the second processing unit can be selected to work on the workpiece at the same time or one of the first processing unit and the second processing unit can be selected to work on the workpiece; the cleaning and brushing are carried out through the first treatment unit, then the grinding treatment is carried out through the second treatment unit, and different types of substances are cleaned and removed; the first processing unit and the second processing unit are mutually matched and do not interfere with each other, so that the working efficiency is improved; if only one treatment process is adopted for the workpiece, such as only a grinding process, the grinding work effect is single, and various substances, such as oil stains, are difficult to remove. In a further embodiment, since the ground workpiece is cylindrical or cylinder-like and the surface of the workpiece is curved, in the prior art, the brush head for cleaning is basically a whole, when the plane of the workpiece is cleaned, the surface of the brush head is in surface contact with the surface of the workpiece, while when the curved surface is cleaned, the surface of the brush head is in line contact with the surface of the workpiece, the cleaning range of the line contact is small, and therefore the working efficiency is reduced, and to solve the problem, the invention provides the following scheme:

the first treatment head comprises a mounting seat, a base and bristles, and the mounting seat is circular, elliptic or square; one end of the mounting seat is in threaded connection with the second transmission piece, a plurality of groups of bases are mounted at the other end of the mounting seat, the bases are unevenly distributed on the mounting seat, and the density degree of the distribution of the bases is sequentially distributed from the dense side to the dense side according to the direction from the edge to the center of the mounting seat; a plurality of small holes are drilled on each base and are uniformly distributed on the base, a plurality of bristles are adhered in the holes, and the bristles are made of animal hair, artificial hair, hard hair or rubber; from the angle of the installation seat, the lengths of the bristles are reduced in sequence along the direction from the edge to the center of the installation seat, and the surfaces formed among the bristles are arc-shaped. From the whole view of the first processing head, the bristles which are deviated to the edge of the mounting seat are densely arranged in a long length mode, and the bristles which are close to the center of the mounting seat are sparsely arranged in a short length mode; when first processing head carries out the during operation, the mount pad can extrude the work piece downwards, certain pressure is applyed to the work piece, when the short brush hair at center and work piece contact, stop the mount pad extrusion downwards, the long brush hair at edge has been buckled by the extrusion this moment, every brush hair is contacted by original point contact thixotropy line with the curved surface, a plurality of line contact form the face contact, consequently first processing head becomes the face contact with the curved surface by the line contact, area of contact has been increased, the area grow of brushing clearly, the efficiency of brushing clearly has been improved. In addition, the contact area between the center of the installation seat and the curved surface is large, the contact area between the edge of the installation seat is small, in order to improve the overall cleaning efficiency and the material cost, the bristles are sparsely arranged in the center of the installation seat, the bristles are densely arranged at the edge of the installation seat, in other words, the bristles which are too dense are not required to be arranged in the center of the installation seat, and the bristles which are too dense are required to be arranged at the edge of the installation seat, so that the cost is saved.

In further embodiment, set up first rotation seat between base and mount pad, first rotation seat drives base forward or direction motion, so the design is because in above-mentioned embodiment, at first processing head during operation, the work piece rotates under the drive of first rotation axis, first processing head carries out reciprocating motion along work piece length direction under the drive of first slip subassembly, see in the whole direction, only two motion processes, first processing head cleans with a brush, in order to improve the effect of cleaning with a brush, reach higher clean precision degree, the technical scheme of this embodiment has consequently been designed. The cleaning unit that every base and brush hair are constituteed all rotates under the drive of first rotation seat, and in the above-mentioned embodiment relatively, the cleaning unit of this embodiment better has the suitability, and every unit of cleaning alone is when rotating the cleaning, not only along work piece length direction's power, centrifugal force in addition, acts on the curved surface simultaneously, acts on the material that needs to be cleaned away simultaneously from the direction of difference, and the material is cleared up very easily, has improved work efficiency.

In a further embodiment, the workpiece to be ground is cylindrical or quasi-cylindrical, and for curved surface grinding, in the prior art, the grinding head is a whole, and is in line contact with the curved surface, so that the contact area is small, the working efficiency is low, and in order to solve the problem, the following technical scheme is designed:

the second processing head comprises a grinding seat and a plurality of groups of grinding units; the grinding seat is round, oval or square, the grinding seat is in threaded connection with the second transmission part, the grinding sheet unit is connected with the grinding seat through a spherical universal joint or a plurality of groups of hole seats are formed in the grinding seat, the grinding sheet unit is connected with limiting balls, the limiting balls are arranged in the hole seats and are matched with each other to enable the grinding sheet unit to be limited in the hole seats and have a certain degree of freedom; when the second processing head works, the grinding heads formed by the plurality of groups of grinding sheet units extrude the curved surface to apply pressure, the grinding head is not an unadjustable whole, a certain radian is formed among the plurality of groups of grinding sheet units, single-line contact is changed into multi-line contact, and when the plurality of groups of grinding sheet units are enough and small enough, surface contact is formed among the grinding heads; if a grinding head with a certain radian is directly designed to grind a curved surface, the grinding head is a whole body, and the adjustability and variability among a plurality of groups of grinding sheet units are avoided.

In a further embodiment, when the surface of the workpiece to be processed has different curvatures, the difficulty of polishing increases, the difficulty of contacting the polishing head with the surface of the workpiece increases in the above embodiment, the polishing sheet unit may contact the surface because the surface with different curvatures decreases, and this situation causes the polishing efficiency to decrease, and in order to further improve the polishing precision, the following scheme is designed:

the telescopic piece is a telescopic rod or a powerful spring or a rubber material; one end of the telescopic piece is connected with the grinding seat in a threaded manner or other common manners, and the other end of the telescopic piece is connected with the grinding sheet unit in a spline manner or in a clamping manner or other common manners; the length of the telescopic piece is reduced along the direction from the edge of the grinding seat to the center; when the second processing unit applys certain pressure to the curved surface, in the face of the surface of different curvatures, the extensible member carries out the flexible of different degrees, be close to the extensible member at grinding seat center, for the extensible member that is close to grinding seat edge contacts with the work piece surface earlier, so set up the length that is close to the extensible member at grinding seat center than being close to the length at grinding seat center, through applying the extrusion force, make originally because the surface of different curvatures can not contact with surface contact's abrasive sheet unit and curved surface, increased the grinding area, improve grinding efficiency.

In a further embodiment, the invention also comprises a plurality of groups of fixing frames, wherein the fixing frames are Y-shaped and are connected in the object placing unit through a welding mode or pins; when the device works, the fixing frames are arranged below a workpiece and are arranged in a sparse-to-dense manner along the length direction far away from the first rotating shaft; in the above embodiment, the workpiece is connected to the first rotating shaft through the limiting member, the first rotating shaft drives the workpiece, the clamping effect of the limiting member becomes smaller and smaller as the length of the workpiece is increased, and one end away from the limiting member is inclined due to the action of gravity; the workpiece is supported by the fixing frame, so that the position stability of the workpiece is ensured, in order to save material cost, the arrangement of the fixing frame is from sparse to dense, the clamping force at one end close to the limiting part is large, the workpiece clamping effect is good, and the workpiece does not need too much supporting force, so that the arrangement of the fixing frame is sparse; the end far away from the limiting piece has small clamping force, poor workpiece clamping effect and more supporting force required by the workpiece, so the fixed frame is densely arranged; the workpiece rotates according to the first rotating shaft, the workpiece and the fixing frame are provided with contact points, and in order to reduce the influence of the contact points on the rotation of the workpiece, the surface of the fixing frame is coated with a smooth head-shaped wear-resistant layer with a small friction coefficient, so that the influence of the fixing frame on the rotation of the workpiece is reduced.

In a further embodiment, the length of travel of the first or second treatment head, i.e. the length of brushing or grinding, has a great influence on the brushing or grinding uniformity of the workpiece when the workpiece is rotated at least one revolution, so that in order to ensure uniformity, the relationship of the individual elements satisfies the following relationship:

v is the horizontal speed of the first processing head or the second processing head;

ω is the angular velocity of the first axis of rotation;

l is the effective workpiece length;

n is the number of turns of the first rotating shaft (N is an integer greater than 0).

In this relation, the first processing head and the second processing head are referred to as a component point; the workpiece is clamped on a first rotating shaft, and the angular speed of the first rotating shaft is also the angular speed of the workpiece; l is the effective working length of the workpiece, namely the effective length of the workpiece which can be brushed or grinded; when the workpiece rotates for N circles, the walking length of the first processing head or the second processing head is equal to the effective workpiece length, and then the next work is carried out, in the mode, the workpiece rotates for N circles, the brushing or grinding length of the workpiece is equal, and therefore the brushing or grinding uniformity is higher. In other words, if the length of the first or second processing head is different from the effective workpiece length when the workpiece rotates N cycles, the brushing or polishing path is unclear, and repeated brushing or polishing at the same place is likely to occur, which reduces the uniformity of brushing or polishing.

The working principle is as follows:

the cylindrical or cylinder-like workpiece is clamped in the limiting piece and is supported by the fixed frame; the first rotating shaft drives the workpiece to rotate, the angular speed of the workpiece is the same as that of the first rotating shaft, the processing assembly is driven by the supporting columns to reciprocate along the length direction of the workpiece, the processing assembly processes the workpiece in two different modes, the workpiece is cleaned through the first processing unit, and then the workpiece is ground through the second processing unit.

The first processing unit and the second processing unit are arranged oppositely, and the relative position of the first processing unit or the second processing unit and the workpiece is adjusted through the rotating seat; the first processing unit cleans the workpiece through the bristles, the bristles are changed from dense to sparse and have long and short lengths along the direction from the edge to the center of the first processing unit, when the curved surface of the workpiece works, the bristles are bent to different degrees, the bristles are in contact with the curved surface in a point-to-point contact and line-to-line contact mode, the line contact formed by multiple points in the working range is changed into multiple lines, and the surface contact is different in length, so that the contact area is increased, and the washing efficiency is improved; the bristles are driven by the first rotating seat to rotate forwards or reversely, the force of the bristles on the curved surface is changed from single force to multi-directional force, the stress of impurities is increased, and the bristles are easier to clean; the second processing unit grinds the workpiece, the grinding head consists of a plurality of grinding sheet units, the grinding sheet units have certain freedom degree of movement, the grinding head has adjustability, and when the curved surface of the workpiece is ground, line contact is changed into multi-line contact or surface contact, so that the grinding area is increased, and the grinding efficiency is improved; when the workpiece has different curvatures, the telescopic piece between the grinding sheet unit and the grinding seat adjusts the position of the grinding sheet unit, so that the grinding sheet unit is better attached to the curved surface, and the grinding efficiency is ensured. The first processing unit and the second processing unit are used for processing the workpiece in a first period, and then the next period of processing is carried out.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.