A fixing tool for machining parts

Abstract

The application relates to the technical field of part fixing tools, and discloses a fixing tool for part machining, which comprises a bottom support table, a collecting cavity recessed towards the inside is arranged at the top of the bottom support table, a plurality of bottom support frames are arranged in the collecting cavity at intervals, a mounting frame is arranged on one side of the bottom support table, a quick special-shaped part fixing device is arranged on the mounting frame and the bottom support table; the fixing tool can conveniently and quickly install and fix parts, the fixing effect of special-shaped parts can be achieved by adjusting the irregular shape of the surface of the part, with the advancement of the machining process, the part can be controlled to rotate along the shaft of the mounting disc through the rotary driving assembly, so that machining work can be carried out on different positions of the part without adjusting the position of the machining equipment, and the generated chippings can fall into the collecting cavity on the bottom support table for collection, so that the environment of the machining workshop is prevented from being polluted.

Description

Technical Field

[0001] This invention relates to the field of component fixing fixture technology, specifically a component fixing fixture for component processing. Background Technology

[0002] During the production or installation of automotive parts, special fixtures are required for fixing. For example, plate-shaped parts such as brake discs and cylindrical parts such as wheel hubs require specific fixtures for fixing during production or installation. This results in a wide variety of fixtures being used, making it difficult to use a single type of fixture to fix the parts, leading to low installation efficiency and long production time.

[0003] CN110181398B discloses a tooling fixture for automotive parts, including a base plate and a fixing device. The fixing device is provided at the upper end of the base plate, and bolt fixing holes are provided around the base plate. This invention can solve the problems of existing plate-shaped parts such as brake discs and cylindrical parts such as wheel hubs in automobiles, which require special fixtures for fixing during production or installation. This results in a wide variety of fixtures being used, which greatly increases production costs. At the same time, some irregular plate-shaped parts cannot be fixed with conventional fixtures, which leads to long production or installation time. Furthermore, some parts need to be processed on both sides after fixing, requiring workers to flip the parts again for fixing, which greatly consumes production time and reduces production efficiency.

[0004] However, this invention has the following problems: First, in order to facilitate the processing of the top and bottom surfaces of the parts, the fixing device is designed to be hollowed out at the top and bottom. Although this design is beneficial for processing the top and bottom surfaces of the parts, there is a problem that the parts may fall off the bottom of the fixing device due to careless or unstable installation during the installation process, resulting in damage to the parts; Second, the fixing structure for irregularly shaped parts used in this invention is relatively dense, and a certain amount of force is required to hold the parts in the fixing structure during installation, which is laborious and easily damages the surface of the parts; Third, there is a lack of collection of the parts debris generated during the processing, which pollutes the processing workshop environment. Summary of the Invention

[0005] The purpose of this invention is to provide a fixing fixture for machining parts, so as to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: it includes a base platform, which is set on a horizontal plane. The top of the base platform is provided with a recessed collection cavity. A plurality of base brackets are arranged at intervals in the collection cavity. The top of the base brackets is provided with a support member, which is located above the base platform. A mounting bracket is provided on one side of the base platform. A quick-fixing device for irregularly shaped parts is provided on the mounting bracket and the base platform.

[0006] The rapid irregular part fixing device includes a mounting plate, a drive assembly, a first mounting assembly, a second mounting assembly, and an irregular part fixing assembly. The top of the mounting frame is semi-circular. The mounting plate is mounted on the mounting frame, and the mounting plate and the top of the mounting frame rotate around the center of the mounting plate. The drive assembly is mounted on the base platform. The first and second mounting assemblies are located on the side of the mounting plate. There are two irregular part fixing assemblies, which are symmetrically arranged on the side of the mounting plate. The two irregular part fixing assemblies are respectively connected to the first and second mounting assemblies, and the base platform is located directly below the two irregular part fixing assemblies.

[0007] A rotary drive assembly is provided on one side of the mounting plate, and the rotary drive assembly is connected to the center of the mounting plate.

[0008] Preferably, the drive assembly includes a drive box, a drive block, a first spring, and a drive handle. The drive box is located below the base platform, and the top of the drive box is open. The drive block passes through the top of the drive box and slides vertically with it. A plurality of first springs are provided, and the plurality of first springs are vertically arranged inside the drive box. The upper and lower ends of the first springs are fixedly connected to the bottom of the drive block and the bottom of the drive box, respectively. The bottom of the base platform is fixedly connected to the top of the drive block. The drive handle is located on the side of the base platform away from the mounting plate.

[0009] Preferably, the first mounting assembly includes a first toothed rod, a second toothed rod, a drive gear, a connecting rod, a sliding bracket, and a second spring. Two first toothed rods are provided, symmetrically and vertically arranged at both ends of the base plate near the mounting disc. Two sliding brackets are provided, vertically and symmetrically arranged at both ends of the mounting disc near the base plate. Two connecting rods are provided, horizontally and symmetrically arranged on the two sliding brackets, with each connecting rod slidingly engaging with one sliding bracket. Two second springs are provided, vertically and symmetrically arranged at the bottom of the two connecting rods, with the bottom of each second spring connected to the bottom of the two sliding brackets. Two second toothed rods are provided, symmetrically and vertically arranged at the ends of the two connecting rods that are far apart from each other. Two drive gears are provided, symmetrically and rotatably arranged at both ends of the lower part of the mounting disc. Each drive gear meshes with an adjacent second toothed rod. The first toothed rod does not contact the drive gear, but meshes with the adjacent drive gear when the first toothed rod rises.

[0010] Preferably, the second mounting component includes a mounting base, a driving wedge, and a mating wedge. Two mounting bases are symmetrically arranged on two connecting rods, and each mounting base is laterally slidably engaged with its corresponding connecting rod. Two mating wedges are symmetrically arranged on the tops of the two mounting bases. The driving wedge is located at the upper end of the mounting plate, and the tops of the two mating wedges are respectively provided with beveled edges that mate with the sides of the top of the driving wedge. The driving wedge is obliquely slidably connected to the two mating wedges.

[0011] Preferably, the irregularly shaped fixing component includes a first clamping plate, a second clamping plate, and a third clamping plate. The first, second, and third clamping plates are all semi-circular. The arc-shaped side of the first clamping plate is located on the side of the mounting base and is rotatably connected to it. There are two second clamping plates, which are symmetrically arranged on the side of the first clamping plate away from the mounting base. The arc-shaped side of each second clamping plate is rotatably connected to the side of the first clamping plate. There are several third clamping plates, with two third clamping plates symmetrically arranged on the side of each second clamping plate away from the first clamping plate. The arc-shaped side of each third clamping plate is rotatably connected to the side of the second clamping plate. The other side of each third clamping plate is covered with a rubber pad.

[0012] Preferably, the rotary drive assembly includes a mounting platform and a drive motor. The mounting platform is located on the side of the mounting frame away from the base platform, and the drive motor is located on the top of the mounting platform. The output end of the drive motor is fixedly connected to the center of the side end of the mounting plate.

[0013] Preferably, a stop is provided on one side of the mounting plate, and the stop and the center of the mounting plate are aligned horizontally. An annular groove is provided on the inner side of the mounting frame to facilitate the passage of the stop. One end of the top of the mounting frame is connected to the annular groove, and the other end of the top of the mounting frame is closed.

[0014] Preferably, the bottom of the base bracket is slidably connected to the bottom of the collection cavity.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In use, the automotive parts are first placed horizontally on the supports of multiple base brackets, with one end of the parts suspended in the air, directly below two irregularly shaped fixing components. Then, the drive assembly controls the parts on the base brackets to rise. With the cooperation of the first and second mounting components, the two irregularly shaped fixing components descend synchronously, moving away from each other to create space for fixing the parts, until the parts are positioned between them. Next, the drive assembly controls the base brackets to reset, and the two irregularly shaped fixing components move closer together, clamping and fixing the parts from both sides of the end. The fixing components can be adjusted according to the irregular shape of the parts' surfaces to achieve the desired fixing effect. After fixing, the parts can be processed. As the processing progresses, the drive assembly controls the parts to rotate along the axis of the mounting plate, allowing processing of different parts without adjusting the processing equipment position. Debris generated during processing falls into a collection chamber on the base bracket for collection, preventing pollution of the processing workshop environment.

[0017] In this invention, when the two irregularly shaped fixing components are horizontally arranged, the stop on one side of the mounting plate and one end of the top of the mounting frame are in a stop state. When it is necessary to control the rotation of the parts, the mounting plate is controlled to rotate clockwise, thereby driving the parts to rotate. When the rotation angle is too large, the stop passes through the annular groove and will not affect the rotation of the mounting plate. When it is necessary to clamp the parts, the mounting plate is controlled to rotate counterclockwise until the stop and one end of the top of the mounting frame are abutted. At this time, the two irregularly shaped fixing components are just adjusted to a horizontal state, and the first toothed rod and the drive gear are in a pre-meshing state, thereby avoiding the problem of deviation in the rotation angle of the mounting plate, which would affect the smooth operation of the drive component, the first mounting component and the second mounting component.

[0018] In this invention, the position of the base bracket is adjusted by controlling the sliding of the base bracket in the collection cavity. Then, the position of the base bracket is adjusted according to the length of the parts to be processed, thereby ensuring that the parts are in a balanced state when placed on the base bracket, and avoiding damage caused by the parts falling off. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial structural diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the irregularly shaped fixing component in this invention;

[0022] Figure 4 This is a partial structural diagram of the rapid irregular part fixing device in this invention. Figure 1 ;

[0023] Figure 5 This is a partial structural diagram of the rapid irregular part fixing device in this invention. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of a partial explosion structure of the present invention;

[0025] Figure 7 This is a partial structural side view of the present invention;

[0026] Figure 8 This is an exploded structural diagram of the mounting plate and mounting bracket in this invention;

[0027] Figure 9 This is a schematic diagram of the first state structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the second state structure of the present invention.

[0029] In the diagram: 1. Base platform; 2. Collection chamber; 3. Base bracket; 4. Support component; 5. Mounting bracket; 6. Quick-release irregular-shaped parts fixing device; 61. Mounting plate; 62. Drive assembly; 621. Drive box; 622. Drive block; 623. First spring; 624. Drive handle; 63. First mounting assembly; 631. First toothed rod; 632. Second toothed rod; 633. Drive gear; 634. Connecting rod; 635. Sliding frame; 636. Second spring; 64. Second mounting assembly; 641. Mounting base; 642. Drive wedge; 643. Mating wedge; 65. Irregular-shaped fixing assembly; 651. First clamping plate; 652. Second clamping plate; 653. Third clamping plate; 7. Rotary drive assembly; 71. Mounting platform; 72. Drive motor; 8. Stop block; 9. Annular slide groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 10 The present invention provides a technical solution: including a base platform 1, the base platform 1 is set on a horizontal plane, the top of the base platform 1 is provided with a collection cavity 2 that is recessed inward, a plurality of base brackets 3 are arranged at intervals in the collection cavity 2, and the top of the base brackets 3 is provided with a support member 4, and the support member 4 is located above the base platform 1. A mounting frame 5 is provided on one side of the base platform 1, and a quick irregular part fixing device 6 is provided on the mounting frame 5 and the base platform 1.

[0032] The rapid irregular part fixing device 6 includes a mounting plate 61, a drive assembly 62, a first mounting assembly 63, a second mounting assembly 64, and an irregular part fixing assembly 65. The top of the mounting frame 5 is semi-circular. The mounting plate 61 is mounted on the mounting frame 5, and the mounting plate 61 and the top of the mounting frame 5 are rotatably engaged about the center of the mounting plate 61. The drive assembly 62 is mounted on the base platform 1. The first mounting assembly 63 and the second mounting assembly 64 are mounted on the side of the mounting plate 61. There are two irregular part fixing assemblies 65, which are symmetrically arranged on the side of the mounting plate 61. The two irregular part fixing assemblies 65 are respectively connected to the first mounting assembly 63 and the second mounting assembly 64, and the base platform 3 is located directly below the two irregular part fixing assemblies 65.

[0033] A rotary drive assembly 7 is provided on one side of the mounting disk 61, and the rotary drive assembly 7 is connected to the center of the mounting disk 61.

[0034] In this embodiment, as Figures 2 to 6 As shown, the drive assembly 62 includes a drive box 621, a drive block 622, a first spring 623, and a drive handle 624. The drive box 621 is located below the base platform 1, and the top of the drive box 621 is open. The drive block 622 passes through the top of the drive box 621 and slides vertically with it. Several first springs 623 are provided, and several first springs 623 are vertically arranged inside the drive box 621. The upper and lower ends of the first springs 623 are fixedly connected to the bottom of the drive block 622 and the bottom of the drive box 621, respectively. The bottom of the base platform 1 is fixedly connected to the top of the drive block 622. The drive handle 624 is located on the side of the base platform 1 away from the mounting plate 61.

[0035] The first mounting assembly 63 includes a first toothed rod 631, a second toothed rod 632, a drive gear 633, a connecting rod 634, a sliding bracket 635, and a second spring 636. Two first toothed rods 631 are provided, symmetrically and vertically arranged at both ends of the base plate 1 near the mounting plate 61. Two sliding brackets 635 are provided, vertically and symmetrically arranged at both ends of the mounting plate 61 near the base plate 1. Two connecting rods 634 are provided, horizontally and symmetrically arranged on two sliding brackets 635, with each connecting rod 634 sliding vertically and vertically engaging with one sliding bracket 635. The second spring 636... The mounting plate 61 has two second springs 636, which are vertically and symmetrically arranged at the bottom of the two connecting rods 634, and the bottom of the two second springs 636 is respectively connected to the bottom of the two sliding brackets 635. There are two second toothed rods 632, which are symmetrically and vertically arranged at the ends of the two connecting rods 634 that are far apart from each other. There are two drive gears 633, which are symmetrically and rotatably arranged at both ends of the lower part of the mounting plate 61. Each drive gear 633 meshes with the adjacent second toothed rod 632. The first toothed rod 631 does not contact the drive gear 633, and when the first toothed rod 631 rises, it meshes with the adjacent drive gear 633.

[0036] The second mounting component 64 includes a mounting base 641, a driving wedge block 642, and a mating wedge block 643. There are two mounting bases 641, which are symmetrically arranged on two connecting rods 634, and the two mounting bases 641 are respectively laterally slidingly engaged with the corresponding connecting rods 634. There are two mating wedge blocks 643, which are symmetrically arranged on the top of the two mounting bases 641. The driving wedge block 642 is located at the upper end of the mounting plate 61, and the top of the two mating wedge blocks 643 is respectively provided with beveled edges that fit with the two sides of the top of the driving wedge block 642. The driving wedge block 642 is obliquely slidingly connected to the two mating wedge blocks 643.

[0037] The irregularly shaped fixing component 65 includes a first clamping plate 651, a second clamping plate 652, and a third clamping plate 653. The first clamping plate 651, the second clamping plate 652, and the third clamping plate 653 are all semi-circular. The arc-shaped side of the first clamping plate 651 is located on the side of the mounting base 641 and is rotatably connected to it. There are two second clamping plates 652, which are symmetrically arranged on the side of the first clamping plate 651 away from the mounting base 641. The arc-shaped side of each second clamping plate 652 is rotatably connected to the side of the first clamping plate 651. There are several third clamping plates 653. Two third clamping plates 653 are symmetrically arranged on the side of each second clamping plate 652 away from the first clamping plate 651. The arc-shaped side of each third clamping plate 653 is rotatably connected to the side of the second clamping plate 652. The other side of each third clamping plate 653 is covered with a rubber pad.

[0038] When it is necessary to fix automotive parts, pulling the drive handle 624 upwards causes the base platform 1 to rise, which in turn causes the parts placed on the base bracket 3 to rise. After the first toothed rod 631 rises to a certain height, it engages with the drive gear 633. Continuing to rise, it causes the second toothed rod 632 to descend, which in turn causes the connecting rod 634 to slide downwards on the sliding bracket 635. This controls the shaped fixing component 65 to descend closer to the parts. Simultaneously, the mounting base 641 descends, causing the mating wedge block 643 to descend. With the cooperation of the drive wedge block 642, the mounting base 641 moves laterally away from the opposite side on the connecting rod 634. The component slides downwards, causing the two irregularly shaped fixing components 65 to move away from each other, thus reserving space for easy fixing of parts. When the part is between the two irregularly shaped fixing components 65, the drive handle 624 is pulled down. Under the action of the first spring 623, the first toothed rod 631 returns to its original position, and under the action of the second spring 636, the second toothed rod 632 rises to its original position, causing the two irregularly shaped fixing components 65 to rise to their initial height and move closer to each other. The ends of the part are clamped and fixed from both sides. Through the cooperation of the above components, a relatively convenient and quick installation and fixing effect for automotive parts is achieved.

[0039] When the two irregularly shaped fixing components 65 fix the part from both sides of the end, the third clamping plate 653 contacts the irregular part surface and rotates on the second clamping plate 652. The second clamping plate 652 rotates synchronously on the first clamping plate 651. The first clamping plate 651 rotates on the mounting base 641 under force. This controls the third clamping plate 653, which serves as the clamping end, to adapt to the irregular area and achieve the clamping and fixing effect for parts of different shapes.

[0040] In this embodiment, as Figure 7As shown, the rotary drive assembly 7 includes a mounting platform 71 and a drive motor 72. The mounting platform 71 is located on the side of the mounting frame 5 away from the base platform 1, and the drive motor 72 is located on the top of the mounting platform 71. The output end of the drive motor 72 is fixedly connected to the center of the side end of the mounting plate 61.

[0041] Once the parts are fixed, as the processing flow progresses, the drive motor 72 is controlled to rotate the mounting plate 61, which in turn causes the fixed parts to rotate around the center of the mounting plate 61. This achieves the effect of processing different positions of the parts without adjusting the position of the processing equipment.

[0042] In this embodiment, as Figure 8 As shown, a stop block 8 is provided on one side of the mounting plate 61, and the stop block 8 and the center of the mounting plate 61 are on the same straight line in the horizontal direction. The inner side of the mounting frame 5 is provided with an annular groove 9 to facilitate the passage of the stop block 8. One end of the top of the mounting frame 5 is connected to the annular groove 9, and the other end of the top of the mounting frame 5 is closed.

[0043] When the two irregularly shaped fixing components 65 are horizontally positioned, the stop 8 on one side of the mounting plate 61 is in a stop state with one end of the top of the mounting bracket 5. When it is necessary to control the rotation of the parts, the mounting plate 61 is controlled to rotate clockwise, thereby driving the parts to rotate. When the rotation angle is too large, the stop 8 passes through the annular groove 9 and will not affect the rotation of the mounting plate 61. When it is necessary to clamp the parts, the mounting plate 61 is controlled to rotate counterclockwise until the stop 8 is abutted with one end of the top of the mounting bracket 5. At this time, the two irregularly shaped fixing components 65 are just adjusted to a horizontal state, and the first toothed rod 631 and the drive gear 633 are in a pre-meshing state, thereby avoiding the problem of deviation in the rotation angle of the mounting plate 61, which would affect the smooth operation of the drive component 62, the first mounting component 63, and the second mounting component 64.

[0044] In this embodiment, as Figure 6 As shown, the bottom of the base bracket 3 is slidably connected to the bottom of the collection cavity 2;

[0045] By controlling the sliding of the base bracket 3 within the collection chamber 2 to adjust the position of the base bracket 3, the position of the base bracket 3 can be adjusted according to the length of the parts to be processed, thereby ensuring that the parts are in a balanced state when placed on the base bracket 3, and preventing the parts from falling and causing damage.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for machining parts, characterized in that: Includes a base platform (1), which is set on a horizontal plane. The top of the base platform (1) is provided with a collection cavity (2) that is recessed inward. Several base brackets (3) are arranged at intervals in the collection cavity (2). The top of the base brackets (3) is provided with a support member (4), and the support member (4) is located above the base platform (1). A mounting bracket (5) is provided on one side of the base platform (1). A quick-fix device (6) for fixing irregular parts is provided on the mounting bracket (5) and the base platform (1). The quick-fixing device (6) for irregularly shaped parts includes a mounting plate (61), a drive assembly (62), a first mounting assembly (63), a second mounting assembly (64), and an irregularly shaped fixing assembly (65). The top of the mounting frame (5) is set in a semi-circular ring. The mounting plate (61) is set on the mounting frame (5), and the mounting plate (61) and the top of the mounting frame (5) rotate around the center of the mounting plate (61). The drive assembly (62) is set on the base platform (1) and is used to drive the base platform (1). The first mounting assembly (63) and the second mounting assembly (64) are set on the side of the mounting plate (61). There are two irregularly shaped fixing assemblies (65). The two irregularly shaped fixing assemblies (65) are symmetrically set on the side of the mounting plate (61), and the base platform (3) is located directly below the two irregularly shaped fixing assemblies (65). A rotary drive assembly (7) is provided on one side of the mounting plate (61), and the rotary drive assembly (7) is connected to the center of the mounting plate (61). The first mounting assembly (63) includes a first toothed rod (631), a second toothed rod (632), a drive gear (633), a connecting rod (634), a sliding bracket (635), and a second spring (636). Two first toothed rods (631) are provided, symmetrically and vertically arranged at both ends of the base plate (1) near the mounting disk (61). Two sliding brackets (635) are provided, vertically and symmetrically arranged at both ends of the base plate (61) near the mounting disk (61). Near the bottom support (1), there are two connecting rods (634) at both ends. The two connecting rods (634) are horizontally and symmetrically arranged on the two sliding frames (635). Each connecting rod (634) slides up and down with one sliding frame (635). There are two second springs (636). The two second springs (636) are vertically and symmetrically arranged at the bottom of the two connecting rods (634). The bottom of the two second springs (636) is connected to the bottom of the two sliding frames (635). There are two second toothed rods (632), which are symmetrically and vertically arranged at the ends of the two connecting rods (634) that are far apart from each other. There are two drive gears (633), which are symmetrically and rotatably arranged at both ends of the lower part of the mounting plate (61). Each drive gear (633) meshes with the adjacent second toothed rod (632). The first toothed rod (631) does not contact the drive gear (633), and when the first toothed rod (631) rises, it meshes with the adjacent drive gear (633). The second mounting component (64) includes a mounting base (641), a driving wedge (642), and a mating wedge (643). There are two mounting bases (641), which are symmetrically arranged on two connecting rods (634). The two mounting bases (641) are laterally slidably mated with the corresponding connecting rods (634). There are two mating wedges (643), which are symmetrically arranged on the top of the two mounting bases (641). The driving wedge (642) is located at the upper end of the mounting plate (61). The top of the two mating wedges (643) is provided with a matching wedge on both sides of the top of the driving wedge (642). The driving wedge (642) is obliquely slidably connected to the two mating wedges (643). The irregularly shaped fixing component (65) is connected to the mounting base (641).

2. The fixture for machining parts according to claim 1, characterized in that: The drive assembly (62) includes a drive box (621), a drive block (622), a first spring (623), and a drive handle (624). The drive box (621) is located below the base platform (1). The top of the drive box (621) is open. The drive block (622) passes through the top of the drive box (621) and slides up and down with it. There are several first springs (623). Several first springs (623) are vertically arranged inside the drive box (621). The upper and lower ends of the first springs (623) are fixedly connected to the bottom of the drive block (622) and the bottom of the drive box (621), respectively. The bottom of the base platform (1) is fixedly connected to the top of the drive block (622). The drive handle (624) is located on the side of the base platform (1) away from the mounting plate (61).

3. The fixture for machining parts according to claim 2, characterized in that: The irregularly shaped fixing component (65) includes a first clamping plate (651), a second clamping plate (652), and a third clamping plate (653). The first clamping plate (651), the second clamping plate (652), and the third clamping plate (653) are all semi-circular. The arc-shaped side of the first clamping plate (651) is located on the side end of the mounting base (641) and is rotatably connected to it. There are two second clamping plates (652), and the two second clamping plates (652) are symmetrically arranged on the first clamping plate. The side of the disc (651) away from the mounting base (641) and the arc-shaped side of each second clamping disc (652) are rotatably connected to the side end of the first clamping disc (651). Two third clamping discs (653) are symmetrically arranged on the side of each second clamping disc (652) away from the first clamping disc (651). The arc-shaped side of each third clamping disc (653) is rotatably connected to the side end of the second clamping disc (652). The other side of each third clamping disc (653) is covered with a rubber pad.

4. The fixture for machining parts according to claim 3, characterized in that: The rotary drive assembly (7) includes a mounting platform (71) and a drive motor (72). The mounting platform (71) is located on the side of the mounting frame (5) away from the base plate (1). The drive motor (72) is located on the top of the mounting platform (71). The output end of the drive motor (72) is fixedly connected to the center of the side end of the mounting plate (61).

5. The fixture for machining parts according to claim 4, characterized in that: The mounting plate (61) has a stop (8) on one side, and the stop (8) and the center of the mounting plate (61) are on the same straight line in the horizontal direction. The mounting bracket (5) has an annular groove (9) on the inner side to facilitate the passage of the stop (8). One end of the top of the mounting bracket (5) is connected to the annular groove (9), and the other end of the top of the mounting bracket (5) is closed.

6. The fixture for machining parts according to claim 5, characterized in that: The bottom of the base bracket (3) is slidably connected to the bottom of the collection cavity (2).

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