阅读说明：本技术 用于3d打印平台的双驱动升降机构及3d打印升降平台 (Dual-drive lifting mechanism for 3D printing platform and 3D printing lifting platform ) 是由 姜晓通 吴科 邓昊 李瑶 柳佳 于 2020-10-21 设计创作，主要内容包括：本发明提供的用于3D打印平台的双驱动升降机构,包括两驱动组件,驱动组件包括驱动源以及传动模组；两传动模组间通过同步模组连接,两驱动源的其中之一与传动模组耦合,以带动两传动模组同步运动；该驱动机构还包括交替组件,交替组件包括用于承放两驱动源的安装基板以及驱使安装基板移动的驱动部。本发明还提供了一种3D打印升降平台。通过驱动部驱动安装基板以使得一驱动源移动至与对应传动模组耦合,从而实现两驱动源交替驱动传动模组运动,该成型平台结构简单,使用方便。(The invention provides a dual-drive lifting mechanism for a 3D printing platform, which comprises two driving components, wherein each driving component comprises a driving source and a transmission module; the two transmission modules are connected through a synchronous module, and one of the two driving sources is coupled with the transmission module to drive the two transmission modules to move synchronously; the driving mechanism also comprises an alternating assembly, wherein the alternating assembly comprises a mounting substrate for bearing the two driving sources and a driving part for driving the mounting substrate to move. The invention further provides a 3D printing lifting platform. The mounting substrate is driven by the driving part to enable a driving source to move to be coupled with the corresponding transmission module, so that the two driving sources alternately drive the transmission module to move.)

1. A dual-drive lifting mechanism for a 3D printing platform is characterized by comprising two driving components (22), wherein each driving component (22) comprises a driving source (221) and a transmission module;

the two transmission modules are connected through a synchronous module, and one of the two driving sources (221) is coupled with the transmission module to drive the two transmission modules to move synchronously;

the alternating assembly (23) comprises a mounting substrate (232) for bearing the two driving sources (221) and a driving part for driving the mounting substrate (232) to move;

the mounting substrate (232) is driven by the driving part to enable one driving source (221) to move to be coupled with the corresponding transmission module, so that the two driving sources (221) can alternately drive the transmission module to move.

2. The dual-drive lifting mechanism for the 3D printing platform according to claim 1, wherein the synchronous module comprises a belt drive, the transmission module is provided with a synchronous pulley (223), and the two synchronous pulleys (223) are linked through a belt, so that any one of the driving sources (221) and one of the transmission modules move in a coupling manner, and the belt drives the other transmission module to move.

3. The dual drive lift mechanism for a 3D printing platform according to claim 1, wherein said drive portion comprises an air cylinder (231), said air cylinder (231) being fixed on a base surface;

the driving source (221) is fixed on both sides of the mounting substrate (232), the mounting substrate (232) is disposed between the two transmission modules, and the driving source (221) is coupled with the corresponding transmission module by the reciprocating motion of the cylinder (231).

4. The dual drive lift mechanism for a 3D printing platform according to any of claims 1 to 3, wherein the transmission module transmits through a gear (222).

5. 3D printing lifting platform, characterized in that it comprises a drive mechanism according to any one of claims 1-4 and a material-holding table (21);

the material bearing platform (21) is used for bearing and placing products, the two transmission modules are arranged on two opposite sides of the material bearing platform (21), and the driving source (221) drives the two transmission modules to enable the material bearing platform (21) to move in the vertical direction, so that the lifting of the products is realized.

6. The 3D printing lifting platform according to claim 5, wherein the material bearing table (21) comprises a bearing plate (211), an adjusting module (212) and a connecting part (213), wherein the adjusting module (212) is installed between the bearing plate (211) and the connecting part (213);

the bearing plate (211) is used for bearing products;

the adjusting module (212) is used for adjusting the position of the bearing plate (211);

the connecting part (213) is used for supporting the material bearing platform (21), and the transmission module drives the connecting part (213) to move so as to drive the material bearing platform (21) to move.

7. The 3D printing lifting platform according to claim 6, wherein the transmission module further comprises a lead screw (225), and a nut seat (214) is mounted on the connecting portion (213);

the screw rod (225) is in threaded connection with the nut seat (214), so that the driving source (221) drives the screw rod (225), and the material bearing platform (21) moves.

8. The 3D printing lifting platform according to claim 6, wherein the adjusting module (212) comprises an adjusting rod (2122) and a wedge block, and the adjusting rod (2122) is used for adjusting the position of the wedge block to drive the bearing plate (211) to move in the vertical and horizontal plane direction, so as to adjust the levelness of the bearing plate (211).

9. The 3D printing lifting platform of claim 8, wherein the wedges comprise a first wedge (2123) and a second wedge (2124), and inclined surfaces of the first wedge (2123) and the second wedge (2124) are attached;

the adjusting rod (2122) drives the second wedge block (2124) to move, the first wedge block (2123) is installed on the bearing plate (211), and the adjusting rod (2122) drives the second wedge block (2124) to move so that the bearing plate (211) moves in the vertical direction.

10. The 3D printing lifting platform according to claim 5, further comprising a bracket, wherein a guide module (215) is arranged on the bracket, the guide module (215) is installed between the bracket and the material bearing table (21), and the guide module (215) is used for limiting the moving direction of the material bearing table (21);

the driving mechanism drives the material bearing platform (21) to move along the direction defined by the guide die set (215), so that the product on the material bearing platform (21) moves in the vertical direction.

Technical Field

The invention belongs to the field of 3D printing, and particularly relates to a dual-drive lifting mechanism for a 3D printing platform, and further particularly relates to the 3D printing lifting platform.

Background

The lift platform is widely used in daily life, wherein, in the shaping process, especially in the aspect of novel 3D shaping, because the product is by beating printer head layer-by-layer shaping, consequently, need make the platform of holding the shaping product remove for beating printer head, change and beat printer head and mesa's distance, just can form out three-dimensional structure.

Particularly, in the forming process, because the material is continuously sprayed out to form a partial structure, the lifting platform needs to ensure the normal work in the forming process, when the structure for driving the lifting in the lifting platform is used for a long time, the structure is easy to damage, the whole forming process is forced to stop working, because the molding material is often molded by adopting a hot melting mode, when equipment fails, the equipment needs to be suspended for maintenance, the temperature of the molded semi-product is reduced, further forming solidification, if the semi-finished workpiece is processed again, the semi-finished workpiece needs to be repositioned to the position when the semi-finished workpiece is interrupted, the deviation is easy to occur at the interface, meanwhile, the molten materials are spliced on the solidified semi-finished product, the shape of the interface is easy to change, therefore, when the equipment fails, the formed semi-finished product is often discarded, the material is wasted, and the cost is increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a dual-drive lifting mechanism for a 3D printing platform.

On one hand, the dual-drive lifting mechanism for the 3D printing platform comprises two driving components, wherein each driving component comprises a driving source and a transmission module;

the two transmission modules are connected through a synchronous module, and one of the two driving sources is coupled with the transmission module so as to drive the two transmission modules to synchronously move;

the alternating assembly comprises a mounting substrate for bearing the two driving sources and a driving part for driving the mounting substrate to move;

the mounting substrate is driven by the driving part so that one driving source moves to be coupled with the corresponding transmission module, and therefore the two driving sources can drive the transmission module to move alternatively.

Preferably, the synchronous module includes belt drive, install synchronous belt pulley on the transmission module, two synchronous belt pulley passes through the belt interlock, makes arbitrary the driving source with one the transmission module coupled motion, the belt drives another the transmission module motion.

Preferably, the driving part comprises a cylinder fixed on the base surface;

the driving source is fixed on two sides of the mounting substrate, the mounting substrate is arranged between the two transmission modules, and the driving source is coupled with the corresponding transmission modules through the reciprocating motion of the cylinder.

Preferably, the transmission module transmits power through gears;

on the other hand, the invention also provides a 3D printing lifting platform, which is internally provided with two driving mechanisms and a material bearing platform;

the material bearing table is used for bearing and placing products, the two transmission modules are arranged on two opposite sides of the material bearing table, and the driving source drives the two transmission modules, so that the material bearing table moves in the vertical direction to lift the products.

Preferably, the material bearing platform comprises a bearing plate, an adjusting module and a connecting part, wherein the adjusting module is arranged between the bearing plate and the connecting part;

the bearing plate is used for bearing products;

the adjusting module is used for adjusting the position of the bearing plate;

the connecting part is used for supporting the material bearing platform, and the transmission module drives the connecting part to move so as to drive the material bearing platform to move.

Preferably, the transmission module further comprises a screw rod, and a nut seat is mounted on the connecting part;

the screw rod is in threaded connection with the nut seat, so that the driving source drives the screw rod, and the material bearing table moves.

Preferably, the adjusting module comprises an adjusting rod and a wedge block, and the position of the wedge block is adjusted through the adjusting rod, so that the bearing plate is driven to move in the direction vertical to the horizontal plane, and the levelness of the bearing plate is adjusted.

Preferably, the wedge blocks comprise a first wedge block and a second wedge block, and inclined surfaces of the first wedge block and the second wedge block are attached;

the adjusting rod drives the second wedge block to move, the first wedge block is installed on the bearing plate, and the adjusting rod drives the second wedge block to move so that the bearing plate moves in the vertical direction.

Preferably, the device also comprises a bracket, wherein a guide module is arranged on the bracket, the guide module is arranged between the bracket and the material bearing platform, and the guide module is used for limiting the movement direction of the material bearing platform;

the driving mechanism drives the material bearing table to move along the direction limited by the guide module, so that the product on the material bearing table moves in the vertical direction

Compared with the prior art, the invention has the beneficial effects that:

the dual-drive lifting mechanism for the 3D printing platform is internally provided with the two drive components, and when a fault occurs, the drive part drives the drive source to be coupled with the other drive module, so that the two drive sources alternately drive the drive modules to move, and the dual-drive lifting mechanism is convenient to continue to work.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic perspective view of a driving mechanism according to an embodiment of the present invention;

FIG. 2 is a front view of the drive mechanism of the present invention in one embodiment;

FIG. 3 is a schematic perspective view of a lift platform according to an embodiment of the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic perspective view of a material supporting platform according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an adjusting module on a material supporting platform according to an embodiment of the present invention.

Shown in the figure:

21. a material bearing platform; 211. a bearing plate; 212. an adjusting module; 2121. a guide chute; 2122. adjusting a rod; 2123. a first wedge; 2124. a second wedge; 213. a connecting portion; 214. a nut seat; 215. a guide module; 22. a drive assembly; 221. a drive source; 222. a gear; 223. a synchronous pulley; 225. a screw rod; 23. an alternating assembly; 231. a cylinder; 232. a mounting substrate; 24. and (7) fixing the plate.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, "depth" corresponds to the dimension from front to back, "closed" indicates that the vehicle is easy to pass but not accessible to the operator, and "annular" corresponds to the circular shape. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 3, a 3D printing lifting platform comprises a material supporting platform 21 and a driving assembly 22, wherein,

as shown in fig. 5, the material-bearing table 21 includes a material-bearing table 21 for bearing the formed workpiece and a connecting portion 213 for supporting the material-bearing table;

as shown in fig. 1 and 2, the driving assembly 22 is configured to drive the material supporting platform 21 to move in a vertical horizontal plane direction, since an external forming assembly forms a product layer by layer on the material supporting platform 21, the product is gradually formed from the surface of the material supporting platform 21 in the vertical direction, and in order to facilitate layer by layer forming, the material supporting platform 21 is driven by the driving assembly 22 to move in the vertical direction;

in a preferred embodiment, the driving assembly 22 includes a driving source 221, a transmission module; the driving source 221 drives the transmission module, so as to drive the material bearing platform 21;

as shown in fig. 4, specifically, the transmission module includes a lead screw 225, and a nut seat 214 is mounted on the connecting portion 213; through the threaded connection of the screw 225 and the nut seat 214, the driving source 221 drives the screw 225, so that the material bearing table 21 moves.

The lifting platform also comprises a bracket, wherein the bracket is used for forming a fixed base of the material bearing platform 21, the driving assembly 22 and the alternating assembly 23; the fixing plate 24 is arranged on the bracket, and the air cylinder 231 and the screw rod 225 are arranged on the fixing plate 24, so that the lifting platform is connected to form a stable integral structure.

The screw 225 is adopted to drive the material bearing platform 21, and the precision of the product printed on the material bearing platform 21 is high due to the fact that the screw 225 is high in driving precision and convenient to pause.

Furthermore, the number of the driving assemblies 22 is two, the transmission modules are connected through a synchronization module, and one of the two driving sources 221 is coupled with the transmission module to drive the two transmission modules to move synchronously;

the alternating assembly 23 comprises a mounting substrate 232 for accommodating the two driving sources 221 and a driving part for driving the mounting substrate 232 to move;

the driving part drives the mounting substrate 232 to make one driving source 221 move to couple with the corresponding transmission module, so that the two driving sources 221 alternately drive the transmission module to move,

further, two lead screws 225 are respectively disposed at both sides of the connection portion 213; because the material bearing platform 21 is large in size and is provided with products in an upper placing mode, the material bearing platform 21 is heavy in weight, the two screw rods 225 on the two sides drive the material bearing platform 21 at the same time, force can be conveniently applied from the two sides, the torque on one side is reduced, and the service life of the screw rods 225 is guaranteed.

The synchronous module comprises a synchronous belt pulley 223, the synchronous belt pulley 223 is driven to rotate by the driving source 221, the synchronous belt pulley 223 drives the two screw rods 225 to move, the two screw rods 225 are driven to move by the driving source 221, the driving sources 221 are reduced, equipment is simplified, meanwhile, synchronous control is facilitated, and control logic is simplified; meanwhile, the synchronous belt pulley 223 is linked through a belt, so that any one driving source 221 and one transmission module are coupled to move, the belt drives the other transmission module to move, and then one driving source 221 is adopted to simultaneously drive the two screw rods 225, so that the other driving source 221 is in a standby state, when the driving source 221 driving the movement fails, the other driving source 221 can quickly replace the failed driving source 221, and therefore the time for suspending the work due to the failure is reduced, meanwhile, only the driving source 221 is replaced, and other positions are not changed, so that the work can be directly continued, and the semi-finished product can be continuously molded; and the whole product is maintained after being molded, so that the semi-finished product is reasonably utilized, and the cost is saved.

The above-mentioned is only a usage scenario, and the alternating assembly 23 is provided, so that the two driving sources 221 can be used alternately, and since the torque required for driving the driving sources 221 is large, metal fatigue is easily caused by long-time use, so as to cause damage, and the use time of a single driving source 221 is reduced by the alternating use, so that the service lives of the two driving sources 221 are prolonged.

In a preferred embodiment, the driving part includes a cylinder 231, and the cylinder 231 is fixed on the base surface;

the driving source 221 is fixed at both sides of the mounting substrate 232, the mounting substrate 232 is disposed between the two transmission modules, and the driving source 221 is coupled with the corresponding transmission module by the reciprocating motion of the cylinder 231; the transmission module passes through the transmission of gear 222, and is concrete, and the gear 222 tooth number of installing on the driving source 221 is less than the gear 222 tooth number of connecting on the lead screw 225 to reduce the rotational speed of driving source 221 output, and then increase the moment of torsion of output, make the motion of lead screw 225 more stable.

As shown in fig. 5 and 6, the material supporting platform 21 further includes an adjusting module 212 for adjusting the position of the supporting plate 211, the adjusting module 212 is connected to the supporting plate 211, and the levelness of the supporting plate 211 is adjusted by adjusting the height of the adjusting module 212 in the vertical direction;

the number of the adjusting modules 212 is not less than three, the adjusting modules 212 are distributed at the positions of the connecting parts 213 close to the edges, so that different positions of the bearing plate 211 can be adjusted conveniently by different adjusting modules 212, and the purpose of adjusting the horizontal direction of the bearing plate 211 is achieved;

further, the adjusting module 212 includes an adjusting rod 2122 and a wedge, and the adjusting rod 2122 adjusts the position of the wedge to drive the bearing plate 211 to move in the direction perpendicular to the horizontal plane, so as to adjust the levelness of the bearing plate 211; specifically, the wedges include a first wedge 2123 and a second wedge 2124, inclined surfaces of the first wedge 2123 and the second wedge 2124 are fitted, and the first wedge 2123 and the second wedge 2124 slide relative to each other, so that the receiving plate 211 is displaced in the vertical direction; the adjusting rod 2122 drives the second wedge 2124 to move in the horizontal direction, the first wedge 2123 is mounted on the receiving plate 211, and the adjusting rod 2122 drives the second wedge 2124 to move, so that the contact position between the first wedge 2123 and the second wedge 2124 is changed, and the position of the receiving plate 211 in the vertical direction is changed, thereby adjusting the levelness of the receiving plate 211.

Further, the adjusting module 212 further includes a guide sliding slot 2121, and the adjusting rod 2122 drives the second wedge 2124 to slide along the guide sliding slot 2121, so that the second wedge 2124 is limited by the guide sliding slot 2121 to move in a direction, such that the second wedge 2124 precisely pushes the first wedge 2123.

A guide is arranged on the inclined surface of the first wedge 2123 and the second wedge 2124, and the guide enables the second wedge 2124 to move along the inclined surface direction relative to the first wedge 2123, so that the first wedge 2123 and the second wedge 2124 are kept in an attached state; specifically, the guide includes a slide block mounted on the second wedge 2124 and a slide rail provided on the first wedge 2123, and the slide block is slidably connected to the slide rail so that the second wedge 2124 moves relative to the first wedge 2123.

In a preferred embodiment, the material supporting platform 21 further includes a connecting portion 213, the connecting portion 213 is used for supporting the adjusting module 212, the connecting portion 213 serves as a supporting structure of the material supporting platform 21, and the adjusting module 212 is disposed between the connecting portion 213 and the supporting plate 211, so that the material supporting platform 21 forms a stable integral structure;

the driving assembly 22 drives the connecting portion 213 to further drive the receiving plate 211, so that the receiving platform 21 integrally moves in the vertical direction, and the receiving platform 21 is convenient to approach or be away from the 3D printing head, thereby meeting the requirement of layer-by-layer printing.

The bracket is provided with a guide module 215 for guiding the movement direction of the material bearing platform 21, and the movement track of the material bearing platform 21 is limited by the guide module 215 and the driving component 22 together.

The forming platform provided by the invention also needs to be provided with a control device and a power supply device, the corresponding action mechanisms need to be provided with corresponding power mechanisms and the like, and the forming platform also needs to be provided with a general assembly machine body and the like, so that the description is omitted

The invention provides a dual-drive lifting mechanism for a 3D printing platform and the 3D printing lifting platform, wherein two driving components are arranged in the dual-drive lifting mechanism, and when a fault occurs, a driving source is driven by a driving part to be coupled with another transmission module, so that the transmission module is driven by the two driving sources alternately to move, and the dual-drive lifting mechanism is convenient to continue to work; the position of the wedge block is adjusted through the adjusting rod, so that the bearing plate is driven to move in the direction vertical to the horizontal plane, the levelness of the bearing plate is adjusted, the bearing plate is convenient to keep horizontal, and the production precision is improved; the two screw rods are driven to move by one driving source, so that the number of the driving sources is reduced, equipment is simplified, synchronous control is facilitated, control logic is simplified, and the invention is convenient to use and simple in structure.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.