Multi-functional fixture for machining

Abstract

The application discloses a kind of machining multifunctional fixtures, including cylindrical base, the side wall of the cylindrical base is provided with opening part, the side wall of cylindrical base is provided with several threaded through holes, the inner side wall of cylindrical base is installed with several limit blocks, at least one threaded connection hole is arranged on each limit block, bolt is connected after passing through threaded through hole with threaded connection hole, limit block is fixed on cylindrical base, the contact surface of limit block and workpiece is provided with the installation slot that is communicated with threaded connection hole, installation slot is vertically arranged, and elastic limiting piece is slidably installed in installation slot, and the bottom surface of elastic limiting piece is connected with installation slot by first spring, and elastic limiting piece is contacted with bolt.The application can improve the deficiencies of prior art, improve the functionality and application range of fixture tooling.

Description

Technical Field

[0001] This invention relates to a machining fixture, and more particularly to a multifunctional machining clamp. Background Technology

[0002] When welding, turning, or machining mechanical parts, fixtures are required for positioning. Existing fixtures have relatively limited functions, and frequent fixture changes are necessary to meet the machining requirements. This not only wastes machining time but also requires the preparation of a large number of different fixtures in advance, making tooling management inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a multi-functional machining fixture that can overcome the shortcomings of the prior art and improve the functionality and applicability of the fixture.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows.

[0005] A multi-functional machining fixture includes a cylindrical base with an opening on its side wall and several threaded through holes on the side wall. Several limiting blocks are mounted on the inner side wall of the cylindrical base, each limiting block having at least one threaded connection hole. Bolts pass through the threaded through holes and connect to the threaded connection holes, fixing the limiting blocks to the cylindrical base. A mounting groove communicating with the threaded connection holes is provided on the contact surface between the limiting blocks and the workpiece. The mounting groove is vertically oriented, and the workpiece is slidably mounted within it. The device includes an elastic limiting component. The bottom surface of the elastic limiting component is connected to the mounting groove by a first spring. The elastic limiting component is in contact with the bolt. The top surface of the cylindrical base is provided with an annular slide rail. A semi-circular top cover is installed on the annular slide rail. Several through slots are arranged radially on the semi-circular top cover. The outer end of the through slots is connected to a threaded adjustment hole. A slider is slidably installed in the through slot. A first adjusting rod is threadedly connected to the slider. The first adjusting rod is set vertically. A second adjusting rod is movably engaged at the outer end of the slider. The second adjusting rod is threadedly connected to the threaded adjustment hole.

[0006] Preferably, the elastic limiting member includes a rigid main body that is slidably installed in the mounting groove. The rigid main body has a through hole that is fitted with a bolt. The outer side wall of the rigid main body has a slot. An elastic metal sheet is slidably inserted into the slot. The elastic metal sheet covers the outside of the through hole. A connecting rod is connected to the through hole by a second spring. A plurality of elastic supports are circumferentially connected to one end of the connecting rod facing the elastic metal sheet. The elastic supports are arranged in a ring, and the end of the elastic support facing the outside of the through hole contacts the elastic metal sheet.

[0007] Preferably, a cover plate is slidably mounted on the top of the rigid main body. When the cover plate does not cover the slot, the first adjusting rod is rotated downwards and pressed against the elastic metal sheet. When the cover plate covers the slot, the first adjusting rod is rotated downwards and pressed against the cover plate.

[0008] Preferably, the top of the elastic metal sheet is provided with two first support portions, which are coplanar and inclined upwards, and a second support portion is provided between the two first support portions, which is inclined downwards.

[0009] Preferably, the semi-circular top cover is provided with several cylinder mounting slots.

[0010] Preferably, a number of rubber sheets are fixed on the contact surface between the limiting block and the workpiece.

[0011] The beneficial effects of adopting the above technical solution are as follows: the present invention effectively improves the application range of the fixture, and can realize flexible clamping and positioning for different parts and different processing surfaces, reduce the number of times the fixture is changed during the processing of parts, and save processing time. Attached Figure Description

[0012] Figure 1 This is a top view of a specific embodiment of the present invention.

[0013] Figure 2 This is a structural diagram of a limiting block in a specific embodiment of the present invention.

[0014] Figure 3 This is a structural diagram of an elastic limiting member in a specific embodiment of the present invention.

[0015] Figure 4 This is a partial enlarged view of the top of the elastic metal sheet in a specific embodiment of the present invention.

[0016] In the diagram: 1. Cylindrical base; 2. Opening; 3. Threaded through hole; 4. Limiting block; 5. Threaded connection hole; 6. Bolt; 7. Mounting groove; 8. Elastic limiting component; 9. First spring; 10. Annular slide rail; 11. Semi-circular top cover; 12. Through groove; 13. Threaded adjustment hole; 14. Slider; 15. First adjusting rod; 16. Second adjusting rod; 17. Rigid main body; 18. Through hole; 19. Slot; 20. Elastic metal sheet; 21. Second spring; 22. Connecting rod; 23. Elastic bracket; 24. Cover plate; 25. First support part; 26. Second support part; 27. Hydraulic cylinder mounting position; 28. Rubber sheet. Detailed Implementation

[0017] Reference Figure 1-4One specific embodiment of the present invention includes a cylindrical base 1. The sidewall of the cylindrical base 1 has an opening 2 and several threaded through holes 3. Several limiting blocks 4 are installed on the inner sidewall of the cylindrical base 1. Each limiting block 4 has at least one threaded connection hole 5. A bolt 6 passes through the threaded through hole 3 and connects to the threaded connection hole 5, fixing the limiting block 4 to the cylindrical base 1. An installation groove 7 communicating with the threaded connection hole 5 is provided on the contact surface between the limiting block 4 and the workpiece. The installation groove 7 is vertically oriented, and an elastic limiting element 8 is slidably installed within the installation groove 7. The bottom surface of the limiting member 8 is connected to the mounting groove 7 by a first spring 9. The elastic limiting member 8 is in contact with the bolt 6. The top surface of the cylindrical base 1 is provided with an annular slide rail 10. The semi-circular top cover 11 is installed on the annular slide rail 10. The semi-circular top cover 11 has several through grooves 12 arranged radially. The outer end of the through groove 12 is connected to the threaded adjustment hole 13. The slider 14 is slidably installed in the through groove 12. The slider 14 is threadedly connected to the first adjusting rod 15. The first adjusting rod 15 is set vertically. The outer end of the slider 14 is movably engaged with the second adjusting rod 16. The second adjusting rod 16 is threadedly connected to the threaded adjustment hole 13. The elastic limiting component 8 includes a rigid main body 17 slidably installed in the mounting groove 7. The rigid main body 17 has a through hole 18 for insertion and engagement with a bolt 6. A slot 19 is provided on the outer wall of the rigid main body 17. An elastic metal sheet 20 is slidably inserted into the slot 19, covering the outside of the through hole 18. A connecting rod 22 is connected to the through hole 18 via a second spring 21. Several elastic supports 23 are annularly connected to one end of the connecting rod 22 facing the elastic metal sheet 20. The elastic supports 23 are arranged in a ring, with the end of each elastic support facing the outside of the through hole 18 contacting the elastic metal sheet 20. A cover plate 24 is slidably installed on the top of the rigid main body 17. When the cover plate 24 does not cover the slot 19, rotating the first adjusting rod 15 downwards presses it against the elastic metal sheet 20. When the cover plate 24 covers the slot 19, rotating the first adjusting rod 15 downwards presses it against the cover plate 24. The elastic metal sheet 20 has two first support parts 25 on its top, which are coplanar and inclined upwards. A second support part 26 is provided between the two first support parts 25, which is inclined downwards. The semi-circular top cover 11 has several cylinder mounting slots 27. Several rubber sheets 28 are fixed on the contact surface between the limiting block 4 and the workpiece.

[0018] The method of using this invention is as follows: Select a suitable limiting block 4 according to the part to be processed and install it inside the cylindrical base 1. Rotate the bolt 6 to clamp the limiting block 4 onto the part. If the processing surface of the part is the top surface, rotate the semi-circular top cover 11 to a position that does not affect processing. If the processing surface of the part is the side surface, align the processing surface with the opening 2 when clamping the part. If a stronger longitudinal clamping force is required, install a hydraulic cylinder on the hydraulic cylinder mounting slot 27 and select the clamping position by rotating the semi-circular top cover 11 to achieve good longitudinal clamping of the part. By pressing the elastic limiting member 8 with the bolt 6, the elastic deformation of the elastic metal sheet 20 can be used to perform secondary clamping and fixing of the part at the clamping location. Specifically, bolt 6 drives connecting rod 22 to move outward. As connecting rod 22 moves outward, the support area of ​​elastic bracket 23 for elastic metal sheet 20 gradually expands. Simultaneously, by controlling the longitudinal position of elastic limiting member 8 through first adjusting rod 15, flexible control can be achieved in three dimensions: deformation, deformation area, and clamping position of elastic metal sheet 20. Furthermore, the first adjusting rod 15 can be used to directly press down on elastic metal sheet 20, achieving precise adjustment of its deformation. The first support portion 25 and the second support portion 26 at the top of elastic metal sheet 20 improve the uniformity of deformation when subjected to downward pressure from the first adjusting rod 15. Rubber sheet 28 is used to improve the clamping stability between limiting block 4 and the workpiece, while also protecting the workpiece clamping surface.

[0019] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0020] 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 illustrative of the principles of 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 this invention is defined by the appended claims and their equivalents.

Claims

1. A multi-functional machining fixture, comprising a cylindrical base (1), characterized in that: The cylindrical base (1) has an opening (2) on its side wall and several threaded through holes (3) on its side wall. Several limiting blocks (4) are installed on the inner side wall of the cylindrical base (1). Each limiting block (4) has at least one threaded connection hole (5). A bolt (6) passes through the threaded through hole (3) and connects to the threaded connection hole (5) to fix the limiting block (4) on the cylindrical base (1). The contact surface between the limiting block (4) and the workpiece is provided with an installation groove (7) that communicates with the threaded connection hole (5). The installation groove (7) is vertically arranged. An elastic limiting member (8) is slidably installed in the installation groove (7). The bottom surface of the elastic limiting member (8) is connected to the installation groove (7). 7) are connected by a first spring (9), and the elastic limiting member (8) is in contact with the bolt (6). The top surface of the cylindrical base (1) is provided with an annular slide rail (10). The semi-circular top cover (11) is installed on the annular slide rail (10). The semi-circular top cover (11) has several through grooves (12) arranged radially. The outer end of the through groove (12) is connected to the threaded adjustment hole (13). A slider (14) is slidably installed in the through groove (12). A first adjusting rod (15) is threadedly connected to the slider (14). The first adjusting rod (15) is set vertically. The outer end of the slider (14) is movably engaged with a second adjusting rod (16). The second adjusting rod (16) is threadedly connected to the threaded adjustment hole (13). The sex limiting component (8) includes a rigid body (17) that is slidably installed in the mounting groove (7). The rigid body (17) is provided with a through hole (18) that is engaged with a bolt (6). The outer wall of the rigid body (17) is provided with a slot (19). An elastic metal sheet (20) is slidably inserted into the slot (19). The elastic metal sheet (20) covers the outside of the through hole (18). A connecting rod (22) is connected to the through hole (18) by a second spring (21). A number of elastic supports (23) are circumferentially connected to one end of the connecting rod (22) facing the elastic metal sheet (20). The elastic supports (23) are arranged in a ring. The end of the elastic support (23) facing the outside of the through hole (18) is connected to the connecting rod (22). Contact with the elastic metal sheet (20); a cover plate (24) is slidably installed on the top of the rigid main body (17). When the cover plate (24) does not cover the slot (19), the first adjusting rod (15) is rotated downward and pressed against the elastic metal sheet (20). When the cover plate (24) covers the slot (19), the first adjusting rod (15) is rotated downward and pressed against the cover plate (24). Two first support parts (25) are provided on the top of the elastic metal sheet (20). The two first support parts (25) are coplanar and inclined upward. A second support part (26) is provided between the two first support parts (25). The second support part (26) is inclined downward.

2. The multi-functional machining fixture according to claim 1, characterized in that: The semi-circular top cover (11) is provided with several cylinder mounting slots (27).

3. The multi-functional machining fixture according to claim 1, characterized in that: Several rubber sheets (28) are fixed on the contact surface between the limiting block (4) and the workpiece.

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