Lining multi-station machining clamp

Abstract

The utility model discloses a multi-station processing fixture for a bushing, which aims to improve the production efficiency and reduce the failure rate, the fixture comprises a fixture table, an electric telescopic cylinder and a plurality of groups of fixture modules, the fixture table is provided with a plurality of groups of fixture modules in an annular array, each group of fixture module consists of a fixed clamping table and a movable clamping table, the fixed clamping table is fixed on the fixture table, and the movable clamping table is fixed on the fixture table. The movable clamping table is slidably connected to the clamp table, a traction table is arranged below the movable clamping table and connected with the lifting disc through a connecting rod, and the lifting disc is driven by an electric telescopic cylinder to ascend and descend to drive the movable clamping table to clamp a workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a multi-station processing jig for bushings. Background Art

[0002] In the fields of mechanical manufacturing and precision machining, as an important component, bushings are widely used in industries such as automobiles, aviation, and machinery. They are used to bear friction and pressure, playing a role in support and protection. Bushings are usually used in key parts such as bearing seats and machine tool guides, and require high dimensional accuracy and surface quality. Therefore, during the processing of bushings, it is crucial to ensure the accurate clamping and stability of workpieces.

[0003] However, traditional jigs can usually only clamp a single set of workpieces. When multiple workpieces need to be processed or different processing operations are performed on workpieces, the operator must perform multiple material replacements, which not only increases the production cycle but also improves the complexity of operations, resulting in low production efficiency.

[0004] Although there have already been various improved jig designs in the prior art. For example, multi-station jigs have begun to be applied in some high-efficiency production lines. They can clamp multiple workpieces simultaneously, reducing the frequency of workpiece replacement, thereby improving production efficiency. However, such multi-station jigs still have the defects of complex structure and high failure rate.

[0005] For the above reasons, this application proposes a new type of jig. Summary of the Utility Model

[0006] Aiming at the above deficiencies existing in the prior art, the purpose of the utility model is to provide a jig that can clamp multiple groups of workpieces, accelerate production efficiency, and has a low failure rate.

[0007] The technical solution adopted by the utility model to achieve the above purpose is: a multi-station processing jig for bushings, including a jig table, an electric telescopic cylinder, and a jig module. A plurality of groups of the jig modules are arranged in a circular array on the jig table. Each group of the jig modules includes a fixed clamping table and a movable clamping table. The fixed clamping table is fixedly connected to the jig table, and the movable clamping table is slidably connected to the jig table. A lifting plate is slidably connected to the bottom of the jig table corresponding to the central area. A traction table is provided at the bottom of each group of the movable clamping tables. A connecting rod is rotatably connected to the lifting plate corresponding to each group of the traction tables, and the ends of the connecting rods are rotatably connected to the corresponding traction tables. An electric telescopic cylinder is fixedly connected to the center of the bottom of the jig table, and the piston end of the electric telescopic cylinder is fixedly connected to the lifting plate.

[0008] In the above technical solution, a protective cover platform is fixedly connected to the bottom of the fixture table, the electric telescopic cylinder and the connecting rod are located inside the protective cover platform, an installation chassis is fixedly connected to the bottom of the protective cover platform, and a plurality of groups of installation holes are provided on the installation chassis.

[0009] In the above technical solution, clamping arc grooves are provided on both the fixed clamping table and the movable clamping table, and rubber pads are fixedly connected to the inner walls of the clamping arc grooves.

[0010] In the above technical solution, sliding strip grooves are provided on the fixture table corresponding to each group of fixed clamping tables, sliding blocks are fixedly connected to the movable clamping table to match the sliding strip grooves, the sliding blocks are slidably connected in the sliding strip grooves, and a traction platform is fixedly connected to the bottom of the sliding blocks.

[0011] In the above technical solution, a guide post is fixedly connected to the bottom of the fixture table corresponding to the central area, and the lifting disc is slidably connected to the guide post.

[0012] In the above technical solution, a rotating table A is fixedly connected to the bottom of the traction platform, a rotating table B is fixedly connected to the lifting disc corresponding to each group of rotating table A, shaft rods are fixedly connected to both ends of the connecting rod, the shaft rod at one end of the connecting rod is rotatably connected to the rotating table A, and the shaft rod at the other end is rotatably connected to the rotating table B.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: A plurality of groups of bushing blanks to be processed can be placed in the clamping area of each fixture module, and then the lifting disc is driven to rise by the electric telescopic cylinder. At this time, under the action of the connecting rod, the connecting rod can push the movable clamping table, so that the movable clamping table and the fixed clamping table clamp and fix the bushing blank, which is convenient for subsequent processing operations. Such a fixture can clamp multiple groups of workpieces at one time, reduce the material changing process, improve the production efficiency, and the fixture has a simple structure, is easy to maintain, and has a low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model when not clamped;

[0015] Figure 2 is a schematic structural diagram of the present utility model when clamped;

[0016] Figure 3 is a schematic internal structural diagram of the protective cover platform of the present utility model when not clamped;

[0017] Figure 4 is a schematic internal structural diagram of the protective cover platform of the present utility model when clamped.

[0018] In the figure: 100 fixture table, 101 sliding bar groove, 200 electric telescopic cylinder, 300 fixture module, 301 fixed clamping table, 302 movable clamping table, 303 sliding block, 304 traction table, 305 rotating table A, 306 clamping arc groove, 400 lifting disc, 401 guiding column, 402 rotating table B, 500 connecting rod, 501 shaft rod, 600 protective cover table, 700 installation chassis. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Please refer to Figure 1 —4, a multi-station processing fixture for a bushing, including a fixture table 100, an electric telescopic cylinder 200, and a fixture module 300. First, a plurality of groups of fixture modules 300 are arranged in a circular array on the fixture table 100, and each group of fixture modules 300 includes a fixed clamping table 301 and a movable clamping table 302. Among them, the fixed clamping table 301 is fixedly connected to the fixture table 100, and the movable clamping table 302 is slidably connected to the fixture table 100. That is, a sliding bar groove 101 is provided on the fixture table 100 corresponding to each fixed clamping table 301, and a sliding block 303 is fixedly connected to the movable clamping table 302 to match the sliding bar groove 101. The sliding block 303 is slidably connected in the sliding bar groove 101, so that the movable clamping table 302 can perform linear sliding along the sliding bar groove 101;

[0021] Furthermore, a lifting disc 400 is slidably connected to the bottom of the fixture table 100 corresponding to the central area. Specifically, a guiding column 401 is fixedly connected to the bottom of the fixture table 100 corresponding to the central area, and the lifting disc 400 is slidably connected to the guiding column 401, so that the lifting disc 400 can perform linear lifting and sliding along the guiding column 401;

[0022] In addition, a traction table 304 is fixedly connected to the sliding block 303 at the bottom of each movable clamping table 302, a rotating table A 305 is fixedly connected to the bottom of each traction table 304, a rotating table B 402 is fixedly connected to the lifting disc 400 corresponding to each rotating table A 305, a group of connecting rods 500 are provided corresponding to each traction table 304, and shaft rods 501 are fixedly connected to both ends of the connecting rod 500. The shaft rod 501 at one end of the connecting rod 500 is rotatably connected to the rotating table A 305, and the shaft rod 501 at the other end is rotatably connected to the corresponding rotating table B 402;

[0023] Furthermore, an electric telescopic cylinder 200 is fixedly connected to the center of the bottom of the fixture table 100, and the piston end of the electric telescopic cylinder 200 is fixedly connected to the lifting plate 400. In this way, the electric telescopic cylinder 200 can drive the lifting plate 400 to move up and down. When the lifting plate 400 rises, under the action of the connecting rod 500, the connecting rod 500 can push multiple traction platforms 304, so that each moving clamping table 302 moves towards the fixed clamping table 301. When the lifting plate 400 descends, under the action of the connecting rod 500, the connecting rod 500 pulls multiple traction platforms 304, causing each moving clamping table 302 to move away from the fixed clamping table 301;

[0024] When the bushing blank is placed in the clamping area of each fixture module 300, through the above principle, the clamping and loosening of multiple workpieces are realized;

[0025] Furthermore, a protective cover table 600 is fixedly connected to the bottom of the fixture table 100. The electric telescopic cylinder 200 and the connecting rod 500 are located inside the protective cover table 600. The bottom of the protective cover table 600 is fixedly connected to a mounting chassis 700. Multiple mounting holes are provided on the mounting chassis 700. The protective cover table 600 can protect the electric telescopic cylinder 200 and the connecting rod 500 from external damage, which may affect the service life of the fixture, and can also improve the aesthetics of the fixture. In addition, the fixture can be installed in devices such as processing equipment through the mounting chassis 700 to meet the processing requirements of the bushing;

[0026] Furthermore, clamping arc grooves 306 are provided on both the fixed clamping table 301 and the moving clamping table 302. Rubber pads are fixedly connected to the inner walls of the clamping arc grooves 306. The clamping arc grooves 306 can increase the clamping stability of the bushing blank, and the rubber pads can increase the friction to further improve the clamping stability.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0028] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station processing fixture for a bushing, comprising a fixture table (100), an electric telescopic cylinder (200), and a fixture module (300), characterized in that: A plurality of groups of the fixture modules (300) are provided on the fixture table (100) in an annular array. Each group of the fixture modules (300) includes a fixed fixture table (301) and a movable fixture table (302). The fixed fixture table (301) is fixedly connected to the fixture table (100), and the movable fixture table (302) is slidably connected to the fixture table (100). A lifting plate (400) is slidably connected to the bottom of the fixture table (100) corresponding to the central area. A traction table (304) is provided at the bottom of each movable fixture table (302). A connecting rod (500) is rotatably connected to the lifting plate (400) corresponding to each traction table (304). The ends of the connecting rod (500) are rotatably connected to the corresponding traction tables (304). An electric telescopic cylinder (200) is fixedly connected to the center of the bottom of the fixture table (100), and the piston end of the electric telescopic cylinder (200) is fixedly connected to the lifting plate (400).

2. The multi-station processing fixture for a bushing according to claim 1, characterized in that: A protective cover table (600) is fixedly connected to the bottom of the fixture table (100). The electric telescopic cylinder (200) and the connecting rod (500) are located inside the protective cover table (600). An installation chassis (700) is fixedly connected to the bottom of the protective cover table (600), and a plurality of installation holes are provided on the installation chassis (700).

3. A multi-station machining fixture for a bushing according to claim 1, characterized in that: Clamping arc grooves (306) are provided on both the fixed fixture table (301) and the movable fixture table (302), and rubber pads are fixedly connected to the inner walls of the clamping arc grooves (306).

4. A multi-station machining fixture for a bushing according to claim 1, characterized in that: Sliding strip grooves (101) are provided on the fixture table (100) corresponding to each fixed fixture table (301). A sliding block (303) is fixedly connected to the movable fixture table (302) to match the sliding strip grooves (101). The sliding block (303) is slidably connected in the sliding strip grooves (101), and the traction table (304) is fixedly connected to the bottom of the sliding block (303).

5. The multi-station processing fixture for a bushing according to claim 1, characterized in that: A guide post (401) is fixedly connected to the bottom of the fixture table (100) corresponding to the central area. The lifting plate (400) is slidably connected to the guide post (401).

6. The multi-station processing fixture for a bushing according to claim 1, wherein: A rotating table A (305) is fixedly connected to the bottom of the traction table (304). A rotating table B (402) is fixedly connected to the lifting plate (400) corresponding to each rotating table A (305). Shaft rods (501) are fixedly connected to both ends of the connecting rod (500). The shaft rod (501) at one end of the connecting rod (500) is rotatably connected to the rotating table A (305), and the shaft rod (501) at the other end is rotatably connected to the rotating table B (402).

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