Hollow part electrolytic polishing jig

Abstract

The utility model provides a hollow part electrolytic polishing jig which comprises an anode assembly, a cathode assembly is arranged in the anode assembly, and the anode assembly comprises a supporting rod, a hanging rod, a connecting rod, a bidirectional threaded rod, a connector, an anode support, a sliding groove, an anode plate and a locking bolt. The rear surfaces of the supporting rods are fixedly connected with hanging rods, the two supporting rods are fixedly connected through a connecting rod, each supporting rod is of a hollow structure, and the inner side wall of each supporting rod is rotationally connected with a bidirectional threaded rod. The cathode support is arranged above the part, a worker can conveniently and flexibly fix the cathode, it is guaranteed that current is evenly distributed on the surface of the part, and the polishing quality is improved. By adjusting the positions of the anode support and the anode plate, the fixing requirements of hollow parts of different sizes can be met, the universality of the jig is improved, the time required for replacing the jig is shortened, the operation complexity is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a jig, and more particularly to an electrolytic polishing jig for hollow parts, belonging to the technical field of electrolytic polishing jigs. Background Technology

[0002] Electropolishing is an advanced metal surface treatment technology that polishes metal surfaces using electrochemical principles. It uses the metal workpiece as the anode and electrolyzes it in a suitable electrolyte to selectively remove rough surfaces, improving surface smoothness. It is suitable for various metal materials such as stainless steel, aluminum, and copper. Electropolishing technology can enhance the corrosion resistance, wear resistance, and mechanical properties of metals, while also improving the aesthetics of the product.

[0003] Due to the structural characteristics of hollow parts, the distance between the cathode and the internal surface of the part is relatively large, resulting in uneven current distribution on the part surface during electropolishing, which affects the polishing quality. Furthermore, due to differences in part size, the fixture needs to be frequently changed to adapt to different workpieces, which not only increases operational complexity but also reduces production efficiency. Therefore, a new electropolishing fixture for hollow parts is proposed. Utility Model Content

[0004] In view of this, the present invention provides an electropolishing fixture for hollow parts to solve or alleviate one of the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0005] The technical solution of this utility model embodiment is implemented as follows: a hollow part electrolytic polishing fixture includes an anode assembly, and a cathode assembly is provided inside the anode assembly. The anode assembly includes a support rod, a hanging rod, a connecting rod, a bidirectional threaded rod, a connector, an anode bracket, a slide groove, an anode plate, and a locking bolt.

[0006] A hanging rod is fixedly connected to the rear surface of the support rod. The two support rods are fixedly connected by a connecting rod. The support rod has an internal hollow structure. A bidirectional threaded rod is rotatably connected to the inner side wall of the support rod. A connector is fixedly connected to the top of the bidirectional threaded rod. Two anode brackets are symmetrically threaded to the outer side wall of the bidirectional threaded rod. The anode brackets are slidably connected to the inner side wall of the support rod. A groove is opened inside the anode bracket. An anode plate is slidably connected to the inner side wall of the groove. The anode plate is fixedly connected to the anode bracket by locking bolts.

[0007] A further preferred embodiment: the cathode assembly includes an insulating block and a cathode support;

[0008] A cathode support is fixedly connected to the bottom of the insulating block.

[0009] A further preferred embodiment: the insulating block is fixedly connected to the bottom of the connecting rod.

[0010] A further preferred embodiment: the cathode support has uniformly spaced mounting holes.

[0011] A further preferred embodiment: the bottom of the cathode support is fixedly connected to several cathode rods and cathode plates by fixing bolts.

[0012] A further preferred embodiment: a hollow component body is disposed between the anode plates.

[0013] A further preferred embodiment: the cathode rod is disposed inside the hollow part body.

[0014] A further preferred embodiment: the cathode plate is disposed on the outside of the hollow part body.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This utility model provides workers with convenient conditions for flexibly fixing the cathode by setting a cathode support above the hollow part body, thereby ensuring that the current is evenly distributed on the surface of the hollow part body and effectively improving the polishing quality.

[0017] II. By adjusting the position of the anode support and the anode plate, this utility model can meet the fixing requirements of hollow parts of different sizes, improve the versatility of the fixture, reduce the time required to change the fixture, reduce the complexity of operation, and improve production efficiency.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a bottom view of the structure of this utility model;

[0022] Figure 3 This is a structural diagram of the support rod of this utility model;

[0023] Figure 4 This is a structural diagram of the anode support of this utility model.

[0024] Reference numerals: 10. Anode assembly; 11. Support rod; 12. Hanging rod; 13. Connecting rod; 14. Two-way threaded rod; 15. Connector; 16. Anode bracket; 17. Slide groove; 18. Anode plate; 19. Locking bolt; 20. Cathode assembly; 21. Insulating block; 22. Cathode bracket; 23. Mounting hole; 24. Fixing bolt; 25. Cathode rod; 26. Cathode plate; 30. Hollow part body. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1-4 As shown, this utility model embodiment provides a hollow part electrolytic polishing fixture, including an anode assembly 10, a cathode assembly 20 is disposed inside the anode assembly 10, and the anode assembly 10 includes a support rod 11, a hanging rod 12, a connecting rod 13, a bidirectional threaded rod 14, a connector 15, an anode bracket 16, a sliding groove 17, an anode plate 18 and a locking bolt 19.

[0028] A connector 15 is fixedly connected to the top of the bidirectional threaded rod 14. The top of the connector 15 is provided with an internal hexagonal groove, and the bidirectional threaded rod 14 can be rotated by a wrench. Two anode supports 16 are symmetrically threaded to the outer wall of the bidirectional threaded rod 14. By rotating the bidirectional threaded rod 14, the two anode supports 16 can slide within the inner wall of the support rod 11.

[0029] A hanging rod 12 is fixedly connected to the rear surface of the support rod 11. Two support rods 11 are fixedly connected by a connecting rod 13. The support rod 11 has an internal hollow structure. A double-threaded rod 14 is rotatably connected to the inner side wall of the support rod 11. A connector 15 is fixedly connected to the top of the double-threaded rod 14. Two anode supports 16 are symmetrically threaded to the outer side wall of the double-threaded rod 14. The anode supports 16 are slidably connected to the inner side wall of the support rod 11. A groove 17 is opened inside the anode support 16. An anode plate 18 is slidably connected to the inner side wall of the groove 17. The anode plate 18 is fixedly connected to the anode bracket 16 by the locking bolt 19. Pull the anode plate 18 to move along the slide groove 17. Determine the position of the anode plate 18 according to the size of the part. After the anode plate 18 is in place, fix the anode plate 18 by rotating the locking bolt 19. Place the hollow part body 30 between the anode plates 18. Rotate the connector 15 to drive the two sets of anode plates 18 to move closer to each other, clamp the hollow part body 30, and fix the hollow part body 30. The top of the connector 15 is provided with an internal hexagonal groove to facilitate rotation by a wrench.

[0030] In this embodiment, specifically: the cathode assembly 20 includes an insulating block 21 and a cathode support 22;

[0031] A cathode support 22 is fixedly connected to the bottom of the insulating block 21. The insulating block 21 is made of insulating material, which separates the cathode and anode of the fixture.

[0032] In this embodiment, specifically: the insulating block 21 is fixedly connected to the bottom of the connecting rod 13, and the insulating block 21 is fixed by the connecting rod 13 above the part, ensuring that the cathode bracket 22 is located above the part, which facilitates the installation of the cathode by the staff.

[0033] In this embodiment, specifically: mounting holes 23 are evenly provided on the cathode support 22, which facilitates the observation and fixing of the cathode rod 25 and cathode plate 26 below the cathode support 22 by the staff.

[0034] In this embodiment, specifically: a number of cathode rods 25 and cathode plates 26 are fixedly connected to the bottom of the cathode support 22 by fixing bolts 24. The cathode rods 25 and cathode plates 26 are rod-shaped and plate-shaped cathodes, respectively, and are made of insoluble metals such as platinum or platinum-plated titanium. They form a complete current circuit with the anode, which promotes the reduction reaction of metal ions on the anode and completes electrolytic polishing.

[0035] Electropolishing is a technique that polishes metal surfaces using electrochemical principles. In this hollow part electropolishing fixture, the hollow part body 30 serves as the anode, and the cathode assembly 20 (including the cathode rod 25 and the cathode plate 26) forms a current circuit with the anode. In a suitable electrolyte, the metal ions on the anode undergo a reduction reaction, selectively removing their rough surfaces, thereby improving the surface finish of the part, enhancing its corrosion resistance, wear resistance, and mechanical properties, and simultaneously improving the product's aesthetics.

[0036] In this embodiment, specifically: a hollow part body 30 is provided between the anode plates 18, and a through groove is provided inside the hollow part body 30. The shape and size of the through groove can be designed according to product needs. At the same time, the positions of the cathode rod 25 and the cathode plate 26 are adjusted according to the actual inner and outer dimensions of the hollow part body 30.

[0037] In this embodiment, specifically: the cathode rod 25 is disposed inside the hollow part body 30, and the cathode rod 25 ensures that the current is evenly distributed on the inner surface of the part, thereby improving the polishing quality.

[0038] In this embodiment, specifically: the cathode plate 26 is disposed outside the hollow part body 30, and the cathode plate 26 ensures that the current is evenly distributed on the outer surface of the part, thereby improving the polishing quality.

[0039] In operation, this utility model involves: pulling the anode plate 18 along the slide groove 17, determining the position of the anode plate 18 according to the part size, and fixing the anode plate 18 by rotating the locking bolt 19 after the anode plate 18 is in place. The hollow part body 30 is then placed between the anode plates 18, and the connector 15 is rotated to bring the two sets of anode plates 18 closer together, thus fixing the hollow part body 30. After fixing, the cathode rod 25 and cathode plate 26 are installed sequentially by fixing bolts 24. After installation, the fixture and part are placed in the electrolyte for electrolytic polishing. By setting the cathode support 22 above the part, it is convenient for the operator to flexibly fix the cathode, ensuring that the current is evenly distributed on the surface of the part and improving the polishing quality. By adjusting the position of the anode support 16 and the anode plate 18, the fixing requirements of hollow parts of different sizes can be met, improving the versatility of the fixture, reducing the time required to change the fixture, reducing the complexity of operation, and improving production efficiency.

[0040] When using this hollow part electropolishing fixture, it should be noted that the electrolyte is corrosive. Operators must wear protective gloves, goggles, and other protective equipment to avoid contact with the electrolyte on the skin and eyes. The fixture should be placed in a well-ventilated environment to prevent harmful gases from the electrolyte from evaporating and causing injury. If electrolyte splashes during operation, it should be rinsed immediately with plenty of water and handled according to relevant regulations. The cathode support 22 has evenly spaced mounting holes 23. These holes not only facilitate observation and fixation of the cathode rod 25 and cathode plate 26 below the cathode support 22, but more importantly, by rationally setting the position and number of mounting holes 23, the position of the cathode rod 25 and cathode plate 26 can be precisely adjusted to ensure a more reasonable relative position with the hollow part body 30, thereby ensuring uniform current distribution on the inner and outer surfaces of the part and effectively improving polishing quality.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A hollow parts electropolishing fixture, comprising an anode assembly (10), characterized in that: The anode assembly (10) is internally provided with a cathode assembly (20). The anode assembly (10) includes a support rod (11), a hanging rod (12), a connecting rod (13), a bidirectional threaded rod (14), a connector (15), an anode bracket (16), a slide groove (17), an anode plate (18), and a locking bolt (19). A hanging rod (12) is fixedly connected to the rear surface of the support rod (11). The two support rods (11) are fixedly connected by a connecting rod (13). The support rod (11) has an internal hollow structure. A bidirectional threaded rod (14) is rotatably connected to the inner side wall of the support rod (11). A connector (15) is fixedly connected to the top of the bidirectional threaded rod (14). Two anode brackets (16) are symmetrically threaded to the outer side wall of the bidirectional threaded rod (14). The anode brackets (16) are slidably connected to the inner side wall of the support rod (11). A groove (17) is opened inside the anode bracket (16). An anode plate (18) is slidably connected to the inner side wall of the groove (17). The anode plate (18) is fixedly connected to the anode bracket (16) by a locking bolt (19).

2. The electropolishing fixture for hollow parts according to claim 1, characterized in that: The cathode assembly (20) includes an insulating block (21) and a cathode support (22); A cathode support (22) is fixedly connected to the bottom of the insulating block (21).

3. The electrolytic polishing fixture for hollow parts according to claim 2, characterized in that: The insulating block (21) is fixedly connected to the bottom of the connecting rod (13).

4. The electropolishing fixture for hollow parts according to claim 2, characterized in that: The cathode support (22) is provided with mounting holes (23) evenly spaced.

5. The electrolytic polishing fixture for hollow parts according to claim 2, characterized in that: The bottom of the cathode support (22) is fixedly connected to several cathode rods (25) and cathode plates (26) by fixing bolts (24).

6. The electropolishing fixture for hollow parts according to claim 5, characterized in that: A hollow part body (30) is disposed between the anode plates (18).

7. The electropolishing fixture for hollow parts according to claim 6, characterized in that: The cathode rod (25) is disposed inside the hollow part body (30).

8. The electropolishing fixture for hollow parts according to claim 6, characterized in that: The cathode plate (26) is disposed on the outside of the hollow part body (30).

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