Adjustable chuck positioning apparatus

Abstract

The utility model discloses a kind of adjustable chuck positioning equipment, belong to positioning fixture technical field, including hydraulic chuck main body, further include profile centering clamping mechanism, multiple profile centering clamping mechanism is distributed in circle array, each profile centering clamping mechanism is connected with hydraulic chuck main body, profile centering clamping mechanism includes clamping assembly, moving assembly, limiting component and guide component, clamping assembly is connected with guide component, guide component is connected with moving assembly, moving assembly is connected with limiting component, clamping assembly, moving assembly, limiting component and guide component cooperate for the centering clamping fixation of to-be-processed workpiece. By the above mode, the self-adapting clamping and centering effect of semicylindrical curved surface workpiece of different sizes can be realized.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically to an adjustable chuck positioning device. Background Technology

[0002] In the process of cutting, drilling and other machining of workpieces, stability is the foundation of precision machining.

[0003] For example Figure 4 The workpiece shown is an asymmetrical semi-cylindrical workpiece. The workpiece has a rectangular horizontal groove and a rectangular vertical groove that penetrate through it. To process it, the existing fixed fixture cannot ensure the stability of the workpiece and perform the center positioning function at the same time as exposing the processing position.

[0004] Manual clamping has low positioning efficiency and requires a large amount of manual labor, making it difficult to meet the needs of mass production.

[0005] Based on this, the present invention designs an adjustable chuck positioning device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an adjustable chuck positioning device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable chuck positioning device includes a hydraulic chuck body and a contour centering clamping mechanism. Multiple contour centering clamping mechanisms are arranged in a circular array. Each contour centering clamping mechanism is connected to the hydraulic chuck body. The contour centering clamping mechanism includes a clamping component, a moving component, a limiting component, and a guiding component. The clamping component is connected to the guiding component, the guiding component is connected to the moving component, and the moving component is connected to the limiting component. The clamping component, the moving component, the limiting component, and the guiding component work together to center and clamp the workpiece to be processed.

[0009] Furthermore, the limiting component includes a limiting block. The hydraulic chuck body has multiple sets of limiting grooves for sliding connection with the limiting block. Each set of limiting grooves and the limiting block are radially distributed along the hydraulic chuck body. The upper end of the limiting block is connected to the moving component.

[0010] Furthermore, the moving component includes a moving block, the lower end of which is fixedly connected to a limiting block via a fastener, and the end of the moving block near the center of the hydraulic chuck body is connected to a guide component.

[0011] Furthermore, the guide assembly includes a guide block, and the movable block has a guide groove for accommodating the guide block. One end of the guide block near the center of the hydraulic chuck body is connected to the clamping assembly.

[0012] Furthermore, the clamping assembly includes an arc-shaped clamping block and a convex clamping block. There is one set of convex clamping blocks and multiple sets of arc-shaped clamping blocks. The sum of the number of sets of arc-shaped clamping blocks and convex clamping blocks is the same as the number of sets of limiting grooves and they correspond to each other. One end of a set of guide blocks near the center of the hydraulic chuck body is fixedly connected to the convex clamping block, and the other guide blocks are fixedly connected to the arc-shaped clamping blocks.

[0013] Furthermore, the end of the arc-shaped clamping block closest to the center of the hydraulic chuck body is arc-shaped;

[0014] Furthermore, the convex clamping block has a structure with a protruding center and recessed sides at one end near the center of the hydraulic chuck body;

[0015] Furthermore, the ends of the arc-shaped clamping blocks and convex clamping blocks near the center of the hydraulic chuck body are made of nylon material.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. By combining the arc-shaped clamping block and the convex clamping block, the self-adaptive clamping and centering of the semi-cylindrical curved surface workpiece can be achieved. At the same time, the combination of the configuration and the moving distance of the two can realize the positioning and clamping of workpieces of different sizes, with high positioning and clamping efficiency.

[0017] 2. The clearance holes on the chuck body allow the workpiece to avoid the machining point during processing. Together with the clamping components, they ensure the effectiveness of clamping. At the same time, together with the chip baffle on the clamping block, they solve the problem that existing chips can easily affect the operation of the chuck. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of an adjustable chuck positioning device according to the present invention;

[0020] Figure 2 This is a top view of an adjustable chuck positioning device according to the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of an adjustable chuck positioning device according to the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the workpiece to be processed according to this utility model.

[0023] The labels in the diagram represent:

[0024] 10. Hydraulic chuck body; 11. Limiting groove; 12. Limiting block; 13. Fixing hole; 14. Moving block; 15. Arc-shaped clamping block; 16. Convex clamping block; 17. Mounting hole; 18. Guide block; 19. Guide groove; 20. Clearance hole; 21. Flange; 22. Chip guard; 23. Brush bristles; 24. Workpiece to be processed. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description are oriented from the perspective of a top-down view.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-4 An adjustable chuck positioning device includes a hydraulic chuck body 10 and a contour centering clamping mechanism. Multiple contour centering clamping mechanisms are arranged in a circular array, and each contour centering clamping mechanism is connected to the hydraulic chuck body 10.

[0028] The contour centering clamping mechanism has at least three sets.

[0029] The copying centering clamping mechanism includes a clamping component, a moving component, a limiting component, and a guiding component. The clamping component is connected to the guiding component, the guiding component is connected to the moving component, and the moving component is connected to the limiting component. The clamping component, the moving component, the limiting component, and the guiding component work together to center and clamp the workpiece 24 to be processed.

[0030] The hydraulic chuck body 10 has a clearance hole 20 for the workpiece 24 to be processed to pass through.

[0031] The limiting component includes a limiting block 12. The hydraulic chuck body 10 has multiple sets of limiting grooves 11 for sliding connection with the limiting block 12. Each set of limiting grooves 11 and limiting block 12 are radially distributed along the hydraulic chuck body 10. The upper end of the limiting block 12 is connected to the moving component.

[0032] The cross-section of the limiting groove 11 is cross-shaped.

[0033] The moving component includes a moving block 14, the lower end of which is fixedly connected to a limiting block 12 via a fastener, and the end of the moving block 14 near the center of the hydraulic chuck body 10 is connected to a guide component.

[0034] The fastener is a bolt, and the movable block 14 has multiple fixing holes 13 that are threaded to the bolts. The movable block 14 and the limit block 12 are fixedly connected by bolts.

[0035] The guide assembly includes a guide block 18, and a guide groove 19 is provided on the movable block 14 to slide and connect with the guide block 18. One end of the guide block 18 near the center of the hydraulic chuck body 10 is connected to the clamping assembly.

[0036] The clamping assembly includes an arc-shaped clamping block 15 and a convex clamping block 16. There is one set of convex clamping blocks 16 and multiple sets of arc-shaped clamping blocks 15. The sum of the number of sets of arc-shaped clamping blocks 15 and convex clamping blocks 16 is the same as the number of sets of limiting grooves 11 and they correspond to each other. One end of a set of guide blocks 18 near the center of the hydraulic chuck body 10 is fixedly connected to the convex clamping block 16, and the other guide blocks 18 are fixedly connected to the arc-shaped clamping blocks 15.

[0037] The arc-shaped clamping block 15 has an arc-shaped end near the center of the hydraulic chuck body 10.

[0038] The convex clamping block 16 has a structure with a protruding center and recessed sides at one end near the center of the hydraulic chuck body 10.

[0039] The ends of the arc-shaped clamping block 15 and the convex clamping block 16 near the center of the hydraulic chuck body 10 are made of nylon material.

[0040] The arc-shaped clamping block 15 and the convex clamping block 16 are provided with multiple mounting holes 17. The mounting holes 17 are threaded, and the bolts pass through the mounting holes 17 to fix the arc-shaped clamping block 15 and the convex clamping block 16 to the moving block 14.

[0041] A flange 21 is fixedly connected to the lower end of the hydraulic chuck body 10. The flange 21 can be used to fix the hydraulic chuck body 10 in the required position through flange connection.

[0042] In this utility model, the limiting block 12 and the moving block 14 are fixedly connected by bolts with the cooperation of the fixing hole 13. The arc-shaped clamping block 15 and the convex clamping block 16 are fixedly connected to the moving block 14 with bolts with the cooperation of the mounting hole 17, the guide block 18 and the guide groove 19. During this period, the guide block 18 and the guide groove 19 play a guiding role. With the cooperation of the flange 21, the hydraulic chuck body 10 can be fixed in the required position through the flange connection.

[0043] Place the workpiece 24 to be processed into the clearance hole 20 of the hydraulic chuck body 10, and start the oil cylinder on the hydraulic chuck body 10. Under the limiting action of the limiting groove 11, the limiting block 12 moves radially towards the center position of the hydraulic chuck body 10. The movement of the limiting block 12 drives the moving block 14 to move. The movement of the moving block 14 drives the arc-shaped clamping block 15 and the convex clamping block 16 to move. Thus, the arc-shaped clamping block 15 and the convex clamping block 16 center and fix the workpiece 24 to be processed. After fixing, the workpiece 24 can be processed. After processing, start the oil cylinder on the hydraulic chuck body 10 to reset the limiting block 12, the moving block 14, the arc-shaped clamping block 15 and the convex clamping block 16. Flip the workpiece 24 to be processed and repeat the above operation to complete the processing of the workpiece 24 to be processed.

[0044] The combination of multiple sets of arc-shaped clamping blocks 15 and a set of convex clamping blocks 16 enables the processing of workpieces 24 with different inner diameters at different moving distances, improving the flexibility and versatility of the equipment.

[0045] Example 2: In some embodiments, such as Figure 1 and Figure 3 As shown, in a preferred embodiment of the present invention, the lower ends of the arc-shaped clamping block 15 and the convex clamping block 16 are fixedly connected to a chip-blocking baffle 22 for blocking debris, and the chip-blocking baffle 22 is an arc-shaped block.

[0046] The outer wall of the limiting block 12 is fixedly connected with bristles 23.

[0047] In this utility model, during the processing of the workpiece 24, the chip baffle 22 can prevent chips from entering the limiting groove 11. At the same time, each time the limiting block 12 moves, the brush 23 will clean the limiting groove 11, thereby solving the problem that existing chips can easily affect the operation of the hydraulic chuck body 10.

[0048] Meanwhile, when lubricating the limiting groove 11, lubricating oil is dripped into the limiting groove 11, which can achieve lubrication of the limiting groove 11 during the processing.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable chuck positioning device, comprising a hydraulic chuck body (10), characterized in that: It also includes a contouring centering clamping mechanism, with multiple contouring centering clamping mechanisms arranged in a circular array, and each contouring centering clamping mechanism is connected to the hydraulic chuck body (10); The contour centering clamping mechanism includes a clamping component, a moving component, a limiting component and a guiding component. The clamping component is connected to the guiding component, the guiding component is connected to the moving component, and the moving component is connected to the limiting component. The clamping component, the moving component, the limiting component and the guiding component work together to center and clamp the workpiece (24) to be processed.

2. The adjustable chuck positioning device according to claim 1, characterized in that, The limiting component includes a limiting block (12). Multiple sets of limiting grooves (11) are provided on the hydraulic chuck body (10) for sliding connection with the limiting block (12). Each set of limiting grooves (11) and limiting block (12) are radially distributed along the hydraulic chuck body (10). The upper end of the limiting block (12) is connected to the moving component.

3. The adjustable chuck positioning device according to claim 2, characterized in that, The moving component includes a moving block (14), the lower end of which is fixedly connected to a limiting block (12) by a fastener, and the end of the moving block (14) near the center of the hydraulic chuck body (10) is connected to a guide component.

4. The adjustable chuck positioning device according to claim 3, characterized in that, The guide assembly includes a guide block (18), and a guide groove (19) is provided on the moving block (14) to slide and connect with the guide block (18). The end of the guide block (18) near the center of the hydraulic chuck body (10) is connected to the clamping assembly.

5. The adjustable chuck positioning device according to claim 4, characterized in that, The clamping assembly includes an arc-shaped clamping block (15) and a convex clamping block (16). There is one set of convex clamping blocks (16) and multiple sets of arc-shaped clamping blocks (15). The sum of the number of sets of arc-shaped clamping blocks (15) and convex clamping blocks (16) is the same as the number of sets of limiting grooves (11) and they correspond to each other. One set of guide blocks (18) is fixedly connected to the convex clamping block (16) at one end near the center of the hydraulic chuck body (10). Other guide blocks (18) are fixedly connected to the arc-shaped clamping blocks (15).

6. The adjustable chuck positioning device according to claim 5, characterized in that, The arc-shaped clamping block (15) has an arc-shaped end near the center of the hydraulic chuck body (10).

7. The adjustable chuck positioning device according to claim 6, characterized in that, The convex clamping block (16) has a structure with a convex center and concave sides at one end near the center of the hydraulic chuck body (10).

8. The adjustable chuck positioning device according to claim 7, characterized in that, The ends of the arc-shaped clamping block (15) and the convex clamping block (16) near the center of the hydraulic chuck body (10) are made of nylon material.

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