Rotation power shaft combining structure of rotary clamp

Abstract

The utility model discloses an autorotation power shaft combining structure of a rotary clamp, which comprises a rotary working table, an autorotation power shaft combining device, an autorotation power device and at least two clamping autorotation mechanisms, and the clamping autorotation mechanisms are arranged on the rotary working table in a circle center symmetry mode. The autorotation power shaft combining device is arranged below the rotary workbench, and the autorotation power device is arranged on the autorotation power shaft combining device. According to the utility model, the structural design is reasonable, the autorotation power shaft closing device and the autorotation power device are not arranged on the rotary workbench, but adopt a positioning type structural design, and do not rotate along with the rotation of the rotary workbench, so that the load of the main motor is effectively reduced, the arrangement of a connecting line is also convenient, and the installation is simple and convenient. When the rotary workbench rotates, the autorotation power device moves downwards to be separated from the clamping autorotation mechanism, and after the rotary workbench is positioned, the autorotation power device moves upwards to be connected with the clamping autorotation mechanism, and transmission of autorotation power is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, and particularly relates to a rotary jig self-rotation power coaxial structure applied to grinding and polishing equipment. Background Art

[0002] To improve the grinding and polishing efficiency, most grinding and polishing equipment adopts a rotatable rotary table. For example, the utility model patent with the publication number "CN107363702A" and the name "A Kettle Inner Lining Polishing Machine" discloses a polishing machine including a rotatable rotary table, a plurality of rotating disks arranged on the rotary table, polishing heads and a main motor. The polishing machine has a material inlet and outlet station and at least one polishing station. The plurality of rotating disks are respectively arranged in one-to-one correspondence with the material inlet and outlet station and the polishing stations. Each polishing station is provided with a polishing head; the main motor drives the rotary table to rotate so that the rotating disks are switched between the material inlet and outlet station and the polishing stations; a driven gear connected to the rotating disk shaft is arranged under each rotating disk, and a rotating disk drive system is arranged at each polishing station. The rotating disk drive system includes an actuator, a rotating motor and a driving gear. The driving gear is connected to the rotating motor shaft, and the actuator is connected to and drives the rotating motor to move between a first position and a second position. At the first position, the driving gear meshes with the driven gear, and at the second position, the driving gear disengages from the driven gear. Although this can realize the rotation of the rotary table and the self-rotation of the workpiece, since the rotating disk drive system is directly fixed on the rotary table, the weight of the rotary table is greatly increased, which also increases the load of the main motor; moreover, the rotating disk drive system rotates with the rotary table, resulting in problems such as cable entanglement, which also increases the difficulty of arranging the connection lines. Summary of the Utility Model

[0003] Aiming at the above deficiencies, the purpose of the present utility model is to provide a rotary jig self-rotation power coaxial structure with reasonable structural design, which reduces the load of the main motor and is easy to wire.

[0004] To achieve the above purpose, the technical solution provided by the present utility model is as follows:

[0005] A rotary jig self-rotation power coaxial structure includes a rotary table, a self-rotation power coaxial device, a self-rotation power device and at least two clamping and self-rotation mechanisms. The clamping and self-rotation mechanisms are arranged on the rotary table in a central symmetry manner. The self-rotation power coaxial device is arranged at a position below the rotary table. The self-rotation power device is arranged on the self-rotation power coaxial device and is driven by the self-rotation power coaxial device to move upward and connect with the clamping and self-rotation mechanism located above it.

[0006] As a preferred embodiment of the present utility model, the rotary worktable is arranged on a rotary driving device, and the rotary driving device includes a cushion seat, a main motor and a cam divider. The cam divider is arranged on the base through the cushion seat. The main motor is arranged on the base at a position corresponding to one side of the cushion seat, and the main motor drives the cam divider through a belt transmission assembly.

[0007] As a preferred embodiment of the present utility model, the self-rotating power coaxial device includes a bracket, a lifting cylinder, a connecting rod and a linkage seat. The linkage seat is arranged on one side wall of the bracket through a linear slide rail assembly. The lifting cylinder is arranged on the other side wall of the bracket. One end of the connecting rod is fixed to the linkage seat, and the other end is fixed to the piston rod of the lifting cylinder.

[0008] As a preferred embodiment of the present utility model, the self-rotating power device includes a servo motor and a lower docking shaft. The servo motor is arranged on the linkage seat. One end of the lower docking shaft is arranged on the driving shaft of the servo motor, and the other side is vertically oriented and provided with lower docking teeth.

[0009] As a preferred embodiment of the present utility model, the clamping and self-rotating mechanism includes an RV reducer, a vertical plate, a self-rotating jig and an upper docking shaft. The vertical plate is vertically arranged on the rotary worktable. A plurality of self-rotating jigs are arranged side by side on the vertical plate. The RV reducer is arranged at one end of the vertical plate. The output shaft of the RV reducer is connected to all the self-rotating jigs through a synchronous belt assembly. The input shaft of the RV reducer faces downward. The upper end of the upper docking shaft is arranged on the input shaft of the RV reducer, and the lower end extends vertically downward and is provided with upper docking teeth adapted to the lower docking teeth. The power transmission between the lower docking shaft and the upper docking shaft is realized through the docking and meshing of the lower docking teeth and the upper docking teeth.

[0010] As a preferred embodiment of the present utility model, the rotary worktable is provided with a docking through hole for the lower docking shaft to pass through at a position corresponding to the upper docking shaft. The docking through hole facilitates the docking of the lower docking shaft and the upper docking shaft.

[0011] As a preferred embodiment of the present utility model, the self-rotating jig includes a self-rotating sleeve seat, a self-rotating shaft and a workpiece jig. The self-rotating shaft is arranged on the self-rotating sleeve seat through two tapered roller bearings. The workpiece jig is arranged at the front end of the self-rotating shaft.

[0012] As a preferred embodiment of the present utility model, the synchronous belt assembly includes a driving synchronous pulley, a driven synchronous pulley, a synchronous guide pulley, a tensioning synchronous pulley, a support plate, a tensioning eccentric disc and a synchronous belt. The driving synchronous pulley is arranged on the output shaft of the RV reducer, the driven synchronous pulley is arranged at the tail end of the self-rotating shaft, the tensioning eccentric disc is arranged on the rotary workbench through the support plate, the tensioning synchronous pulley is arranged on the eccentric shaft of the tensioning eccentric disc, the synchronous guide pulley is arranged on the vertical plate corresponding to the position between two adjacent driven synchronous pulleys, and the synchronous belt bypasses the driving synchronous pulley, the driven synchronous pulley, the synchronous guide pulley and the tensioning synchronous pulley.

[0013] The beneficial effects of the present utility model are as follows: The structure of the present utility model is reasonably designed. The self-rotating power coaxial device and the self-rotating power device are not installed on the rotary workbench, but a positioning structure design is adopted, which does not rotate with the rotation of the rotary workbench. This not only effectively reduces the load on the main motor, but also facilitates the layout of the connecting lines, and the installation is simple and convenient. When the rotary workbench rotates, the self-rotating power coaxial device drives the self-rotating power device to move downward and separate from the clamping self-rotating mechanism. After the rotary workbench is positioned, the self-rotating power coaxial device drives the self-rotating power device to move upward and connect with the clamping self-rotating mechanism located above it, realizing the transmission of self-rotating power. The overall structure is simple, easy to implement, and conducive to wide promotion and application.

[0014] The following further illustrates the present utility model in conjunction with the drawings and embodiments. Description of the Drawings

[0015] Figure 1 is the three-dimensional structure schematic diagram of Embodiment 1 of the present utility model Figure 1 。

[0016] Figure 2 is the three-dimensional structure schematic diagram of Embodiment 1 of the present utility model Figure 2 。

[0017] Figure 3 is the structural schematic diagram of the clamping self-rotating mechanism in the present utility model.

[0018] Figure 4 is the structural schematic diagram of the self-rotating power coaxial device and the self-rotating power device in the present utility model.

[0019] Figure 5 is the three-dimensional structure schematic diagram of Embodiment 2 of the present utility model. Detailed Embodiments

[0020] Embodiment 1, refer to Figures 1 to 4 , a self-rotating power coaxial structure of a rotary fixture provided in this embodiment includes a rotary workbench 1, a self-rotating power coaxial device 2, a self-rotating power device 3 and a clamping self-rotating mechanism 4.

[0021] The rotary table 1 is arranged on a rotary driving device 5. The rotary driving device 5 includes a mounting base 51, a main motor 52 and a cam divider 53. The cam divider 53 is arranged on the base through the mounting base 51. The main motor 52 is arranged on the base at a position corresponding to one side of the mounting base 51. The main motor 52 drives the cam divider 53 through a belt transmission assembly.

[0022] In this embodiment, the number of the clamping and self-rotating mechanisms 4 is two. The two clamping and self-rotating mechanisms 4 are arranged on the rotary table 1 in a central symmetry manner.

[0023] The self-rotating power coaxial device 2 is arranged at a position below the rotary table 1. The self-rotating power device 3 is arranged on the self-rotating power coaxial device 2 and is driven by the self-rotating power coaxial device 2 to move upward and connect with the clamping and self-rotating mechanism 4 located above it.

[0024] Specifically, the self-rotating power coaxial device 2 includes a bracket 21, a lifting cylinder 22, a connecting rod 23 and a linkage seat 24. The linkage seat 24 is arranged on one side wall of the bracket 21 through a linear slide rail assembly 25. The lifting cylinder 22 is arranged on the other side wall of the bracket 21. One end of the connecting rod 23 is fixed to the linkage seat 24, and the other end is fixed to the piston rod of the lifting cylinder 22. The self-rotating power device 3 includes a servo motor 31 and a lower docking shaft 32. The servo motor 31 is arranged on the linkage seat 24. One end of the lower docking shaft 32 is arranged on the driving shaft of the servo motor 31, and the other side is vertically oriented and provided with lower docking teeth.

[0025] The clamping and self-rotating mechanism 4 includes an RV reducer 41, a vertical plate 42, a self-rotating jig 43 and an upper docking shaft 44. The vertical plate 42 is vertically arranged on the rotary table 1. A plurality of self-rotating jigs 43 are arranged side by side on the vertical plate 42. The RV reducer 41 is arranged at one end of the vertical plate 42. The output shaft of the RV reducer 41 is connected to all the self-rotating jigs 43 through a synchronous belt assembly 45. The input shaft of the RV reducer 41 faces downward. The upper end of the upper docking shaft 44 is arranged on the input shaft of the RV reducer 41, and the lower end extends vertically downward and is provided with an upper docking tooth adapted to the lower docking tooth. The power transmission between the lower docking shaft 32 and the upper docking shaft 44 is realized through the docking and meshing of the lower docking tooth and the upper docking tooth. Preferably, a docking through hole 11 for the lower docking shaft 32 to pass through is provided at the position of the rotary table 1 corresponding to the upper docking shaft 44. The docking through hole 11 facilitates the docking of the lower docking shaft 32 and the upper docking shaft 44. The self-rotating jig 43 includes a self-rotating sleeve seat, a self-rotating shaft and a workpiece jig. The self-rotating shaft is arranged on the self-rotating sleeve seat through two tapered roller bearings. The workpiece jig is arranged at the front end of the self-rotating shaft. The synchronous belt assembly 45 includes a driving synchronous pulley 451, a driven synchronous pulley 452, a synchronous guide pulley 453, a tensioning synchronous pulley 454, a support plate 455, a tensioning eccentric disc 456 and a synchronous belt 457. The driving synchronous pulley 451 is arranged on the output shaft of the RV reducer 41. The driven synchronous pulley 452 is arranged at the tail end of the self-rotating shaft. The tensioning eccentric disc 456 is arranged on the rotary table 1 through the support plate 455. The tensioning synchronous pulley 454 is arranged on the eccentric shaft of the tensioning eccentric disc 456. The synchronous guide pulley 453 is arranged on the vertical plate 42 at the position corresponding to the space between two adjacent driven synchronous pulleys 452. The synchronous belt 457 bypasses the driving synchronous pulley 451, the driven synchronous pulley 452, the synchronous guide pulley 453 and the tensioning synchronous pulley 454.

[0026] Embodiment 2, see Figure 5 , a self-rotating power coaxial structure of a rotary fixture provided in this embodiment is basically the same as the structure of Embodiment 1. The difference is that the number of the clamping and self-rotating mechanisms 4 is four, which are arranged symmetrically about the center on the rotary table 1. Specifically, the outer contour of the rotary table 1 is square, and four edges of the rotary table are convex to form mounting parts for mounting the clamping and self-rotating mechanisms 4. The four clamping and self-rotating mechanisms 4 are exactly mounted on the four mounting parts. A notch is formed between two adjacent mounting parts, which can provide a space for the upper docking shaft 44 and the lower docking shaft 32 to be docked, and there is no need to provide a docking through hole 11 on the rotary table 1 any more.

[0027] During operation, since the self-rotation power coaxial device 2 and the self-rotation power device 3 are not installed on the rotary table 1, but are designed with a positioning structure and do not rotate with the rotation of the rotary table 1, it not only effectively reduces the load on the main motor 52, but also facilitates the layout of the connecting lines, and the installation is simple and convenient. When the rotary table rotates, the self-rotation power coaxial device 2 drives the self-rotation power device 3 to move downward and separate from the clamping self-rotation mechanism 4, and after the rotary table is positioned, the self-rotation power coaxial device 2 drives the self-rotation power device 3 to move upward and connect with the clamping self-rotation mechanism 4 located above it, realizing the transmission of self-rotation power.

[0028] According to the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention. Structures identical or similar to it are all within the protection scope of the present invention.

Claims

1. A self-rotating power shaft coupling structure for a rotary fixture, which comprises a rotary worktable, and is characterized in that It further includes a self-rotating power coaxial device, a self-rotating power device, and at least two clamping and self-rotating mechanisms. The clamping and self-rotating mechanisms are arranged symmetrically about the center of the circle on the rotating worktable. The self-rotating power coaxial device is arranged at the lower position of the rotating worktable. The self-rotating power device is arranged on the self-rotating power coaxial device and is driven by the self-rotating power coaxial device to move upward and connect with the clamping and self-rotating mechanisms located above it.

2. The self-rotating power shaft coupling structure of the rotary fixture according to claim 1, characterized in that: The rotating worktable is arranged on a rotating drive device. The rotating drive device includes a cushion seat, a main motor, and a cam divider. The cam divider is arranged on the base through the cushion seat. The main motor is arranged on the base at a position corresponding to one side of the cushion seat. The main motor drives the cam divider through a belt transmission assembly.

3. The self-rotating power shaft coupling structure of the rotary fixture according to claim 1, wherein: The self-rotating power coaxial device includes a bracket, a lifting cylinder, a connecting rod, and a linkage seat. The linkage seat is arranged on one side wall of the bracket through a linear slide rail assembly. The lifting cylinder is arranged on the other side wall of the bracket. One end of the connecting rod is fixed to the linkage seat, and the other end is fixed to the piston rod of the lifting cylinder.

4. The self-rotating power shaft-aligning structure of the rotary fixture according to claim 3, characterized in that: The self-rotating power device includes a servo motor and a lower docking shaft. The servo motor is arranged on the linkage seat. One end of the lower docking shaft is arranged on the drive shaft of the servo motor, and the other side is vertically oriented and provided with lower docking teeth.

5. The self-rotating power coaxial structure of the rotary fixture according to claim 4, wherein: The clamping and self-rotating mechanism includes an RV reducer, a vertical plate, a self-rotating jig, and an upper docking shaft. The vertical plate is vertically arranged on the rotating worktable. A number of self-rotating jigs are arranged side by side on the vertical plate. The RV reducer is arranged at one end of the vertical plate. The output shaft of the RV reducer is connected to all the self-rotating jigs through a synchronous belt assembly. The input shaft of the RV reducer faces downward. The upper end of the upper docking shaft is arranged on the input shaft of the RV reducer, and the lower end extends vertically downward and is provided with upper docking teeth adapted to the lower docking teeth.

6. The self-rotation power shaft alignment structure of the rotary fixture according to claim 5, characterized in that: The rotating worktable is provided with a docking through-hole at a position corresponding to the upper docking shaft for the lower docking shaft to pass through.

7. The self-rotating power shaft coupling structure of the rotary fixture according to claim 6, characterized in that: The self-rotating jig includes a self-rotating sleeve seat, a self-rotating shaft, and a workpiece jig. The self-rotating shaft is arranged on the self-rotating sleeve seat through two tapered roller bearings. The workpiece jig is arranged at the front end of the self-rotating shaft.

8. The self-rotating power shaft-aligning structure of the rotary fixture according to claim 7, wherein: The synchronous belt assembly includes a driving synchronous pulley, a driven synchronous pulley, a synchronous guide pulley, a tensioning synchronous pulley, a support plate, a tensioning eccentric disc, and a synchronous belt. The driving synchronous pulley is arranged on the output shaft of the RV reducer. The driven synchronous pulley is arranged at the tail end of the self-rotating shaft. The tensioning eccentric disc is arranged on the rotating worktable through the support plate. The tensioning synchronous pulley is arranged on the eccentric shaft of the tensioning eccentric disc. The synchronous guide pulley is arranged on the vertical plate at a position corresponding to the space between adjacent driven synchronous pulleys. The synchronous belt passes around the driving synchronous pulley, the driven synchronous pulley, the synchronous guide pulley, and the tensioning synchronous pulley.

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