Electroplating clamp with current isolation structure

Abstract

The utility model relates to the technical field of sectional material processing, in particular to an electroplating clamp with a current isolation structure, which comprises a bottom plate, a clamp component fixedly mounted on the bottom plate, and a clamping nozzle supporting piece mounted on the bottom plate and propped against a tooth piece of the clamp component, the electroplating clamp is characterized in that the tooth piece is made of an insulating material, the bottom plate and the clamping nozzle supporting piece are conductive pieces made of copper materials, and an insulating shock insulator assembly which enables electroplating current to only pass through the bottom plate and the clamping nozzle supporting piece when the clamp works is further arranged at the fixed connecting part between the bottom plate and the clamp assembly. According to the clamp, the clamp assembly is isolated from current when the clamp works through the insulation spacer assembly and the tooth piece made of the insulation material, so that the clamping assembly is prevented from being subjected to electrochemical corrosion in an electrolytic tank, the service life of the clamp is greatly prolonged, the production cost of an enterprise is reduced, and the production safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of profile processing, and in particular to an electroplating fixture. Background Technology

[0002] To improve the weather resistance and aesthetics of aluminum profiles, current technologies typically involve immersing the profiles in an electrolyte solution and applying an electric current to form a dense oxide film on the surface using electrolysis. This necessitates a... clamps The aluminum profile to be processed is tightly clamped so that it can be safely and stably placed into or removed from the electrolyte.

[0003] In 2023, the applicant filed a utility model patent application with application number 202322230789.7, entitled "A Plate Clamping Fixture." This patent document discloses a clamping fixture comprising a clamping assembly and a mounting base assembled together by bolts. The clamping assembly includes two side plates and a clamping block installed between the two side plates. The clamping block includes a clamp head, a connector, and a clamping handle. The mounting base has a clamping element at its front end, and the aluminum material is clamped by the cooperation between the clamping block and the clamping element. During the anodizing process, the clamping fixture and the aluminum material together constitute the anode of the electrolytic cell, thereby oxidizing the surface of the aluminum material immersed in the electrolytic cell under energized conditions, forming a thin film of aluminum oxide. However, this clamping fixture still has some technical problems in use:

[0004] To avoid leaving any blind spots in the machining process, the workpiece to be processed must be completely immersed in the electrolyte. This means that the front ends of the mounting base and clamping components must also be immersed in the electrolyte. Since the clamping components and the mounting base are tightly connected by screws, during the aluminum anodizing process, current flows from the mounting base into the clamping components. This causes the front ends of the clamping components, which are immersed in the electrolyte, to suffer severe electrochemical corrosion. This results in a very short service life for the clamp and high production costs for the company. At the same time, because the mechanical strength of the clamping components is greatly reduced after corrosion, the stability of this type of clamp in holding aluminum is also poor, and the aluminum is prone to falling, posing a significant safety hazard.

[0005] Given the above-mentioned shortcomings of the existing technology, the applicant believes it is necessary to make technical improvements to provide a clamp with a longer service life and better safety. Utility Model Content

[0006] The purpose of this invention is to solve the above-mentioned problems and shortcomings, and to provide an electroplating fixture with a current blocking structure. Through the insulating diaphragm assembly and the toothed parts made of insulating material, the fixture assembly is isolated from the current when the fixture is working, thereby avoiding electrochemical corrosion of the clamping assembly in the electrolytic cell, thus greatly extending the service life of the fixture, reducing the production cost of enterprises, and improving the safety of production.

[0007] The technical solution of this utility model is implemented as follows: an electroplating fixture with a current isolation structure includes a base plate, a fixture assembly fixedly installed on the base plate, and a jaw support installed on the base plate and abutting against the teeth of the fixture assembly. The fixture is characterized in that: the teeth are made of insulating material, the base plate and the jaw support are made of copper conductive material, and an insulating diaphragm assembly is provided at the fixed connection between the base plate and the fixture assembly so that the electroplating current passes only through the base plate and the jaw support when the fixture is working.

[0008] Furthermore, a bolt and nut assembly for fixed assembly is provided between the base plate and the clamp assembly, and the insulating spacer assembly is composed of an insulating washer and a bolt insulating sleeve.

[0009] Furthermore, a bolt and nut assembly for fixed assembly is provided between the base plate and the clamp assembly, and the insulating spacer assembly is composed of an integrally formed insulating washer and a bolt insulating sleeve.

[0010] Furthermore, the base plate is also provided with a first screw hole and a first screw for fixing the clamp support. The clamp support is provided with a corresponding first through hole. The clamp support is installed on the bottom surface of the base plate by the first screw passing through the first through hole and locking into the first screw hole.

[0011] The beneficial effects of this utility model are as follows: This utility model uses an insulating diaphragm assembly to create a current isolation structure at the connection between the clamp assembly and the base plate. When current passes through the base plate, the insulating diaphragm assembly can block the current from flowing into the clamp assembly. Simultaneously, the teeth are made of insulating material, preventing current from flowing into the clamp assembly through the jaw support. Thus, during the process of clamping aluminum material into the electrolytic cell for anodizing, the current only flows through the base plate, the jaw support, and the aluminum material; no current flows through the clamp assembly, thereby preventing electrochemical corrosion. This not only significantly extends the service life of the clamping assembly and reduces production costs, but also ensures that the clamping assembly maintains excellent mechanical properties, ensuring a firm grip on the aluminum material and preventing accidental drops, thereby eliminating safety hazards and improving production safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0014] Figure 3 This is a schematic diagram of the assembly structure of the base plate and clamping assembly of this utility model.

[0015] Figure 4 This is a schematic diagram of the insulating spacer assembly in this utility model.

[0016] Figure 5 This is a schematic diagram of the clamp support structure in this utility model.

[0017] Figure 6 This is a schematic diagram of the clamp housing structure in this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figure 1 , 3 As shown, this utility model provides an electroplating fixture with a current isolation structure, including a base plate 1, a fixture assembly 2 fixedly installed on the base plate 1, and a jaw support 3 installed on the base plate 1 and abutting against the toothed parts 20 of the fixture assembly 2. In order to achieve the purpose proposed by this utility model, the toothed parts 20 are made of insulating material, and the base plate 1 and the jaw support 3 are made of copper conductive parts. An insulating diaphragm assembly 4 is also provided at the fixed connection between the base plate 1 and the fixture assembly 2 so that the electroplating current only passes through the base plate 1 and the jaw support 3 when the fixture is working. When the fixture is in operation, the insulating diaphragm assembly 4 can block the current from flowing from the base plate to the fixture assembly 2. At the same time, since the teeth 20 are also made of insulating material, they can also block the current from flowing through the jaw support 3 to the fixture assembly 2. Thus, even if the fixture assembly 2 is immersed in the electrolyte, since no current flows through the fixture assembly 2, it will not be subject to electrochemical corrosion. This allows the fixture assembly 2 to have a very long service life, greatly reducing the production cost of enterprises. It also allows the fixture assembly 2 to maintain very good mechanical properties for a long time, thereby ensuring the stability of the fixture during operation, preventing the aluminum material from falling accidentally, and improving the safety of production operations.

[0020] like Figure 3As shown, a bolt and nut assembly 5 for fixed assembly is provided between the base plate 1 and the clamp assembly 2. The insulating spacer assembly 4 is composed of an insulating washer 41 and a bolt insulating sleeve 42. The bolt and nut assembly 5 includes a bolt 51 and a nut 52. Preferably, the bolt 51 passes through a fixing screw hole (not shown) on the base plate 1 from the bottom, then passes through the insulating washer 41, the bolt insulating sleeve 42, a through hole at the bottom of the clamp assembly 2, and another insulating washer 41 in sequence, and is then screwed together with the nut 52. In this way, the base plate 1 and the clamp assembly 2 are firmly assembled together by screwing the nut 52 onto the bolt 51. The bolt insulating sleeve 42 is fitted on the outside of the bolt 51 to prevent the bolt 51 from directly contacting the clamp assembly 2. The insulating washer 41 is sandwiched between the nut 52 and the clamp assembly 2, thereby isolating the current on the bolt and nut assembly 5 from the clamp assembly 2; the insulating washer 41 is sandwiched between the base plate 1 and the clamp assembly 2, isolating the current on the base plate 1 from the clamp assembly 2. This way, when the fixture is in operation, no current can flow through the fixture assembly 2, thereby preventing it from being electrochemically corroded.

[0021] like Figure 4 As shown, the insulating spacer assembly 4 can also be composed of an integrally formed insulating washer 41 and a bolt insulating sleeve 42. Since the insulating washer 41 and the bolt insulating sleeve 42 are small in size and easy to lose, making the insulating washer 41 and the bolt insulating sleeve 42 into an integral structure can prevent the parts from being lost and can also speed up the assembly speed of the insulating spacer assembly 4 being fitted onto the bolt 51.

[0022] like Figure 2 , 3 As shown in Figure 5, the base plate 1 is also provided with a first screw hole 11 and a first screw 12 for fixing the clamping support 3. The clamping support 3 is correspondingly provided with a first through hole 31. The clamping support 3 is installed on the bottom surface of the base plate 1 by the first screw 12 passing through the first through hole 31 and locking into the first screw hole 11. Since the clamping support 3 is made of copper with excellent conductivity, it suffers significant wear during the aluminum anodizing process and needs to be replaced frequently. This application allows for quick installation and removal of the clamping support 3 by screwing on the first screw 12 from the outside of the fixture, without having to disassemble the entire fixture to replace the clamping support 3. This greatly improves the convenience of replacing the clamping support 3 and thus helps to improve production efficiency.

[0023] like Figure 1 , 2As shown in Figure 3, the clamp assembly 2 includes a return spring 22, with hook portions 221 at both ends. One end of the hook portion 221 is provided with a buffer cover 222, which is preferably made of wear-resistant nylon, PVC, or similar material. The clamp assembly 2 is provided with a handle 23 connected to the return spring 22. When it is necessary to clamp the aluminum material, the handle 23 is turned to lift the toothed component 20, and the aluminum material is placed between the toothed component 20 and the clamping mouth support 3. Then, the handle 23 is released, and the toothed component 20 and the clamping mouth support 3 clamp the aluminum material tightly under the action of the return spring 22. For easy assembly, the handle 23 is provided with a hanging hole 231. The hook portion 221 with the buffer cover 222 is hung on the hanging hole 231. In this way, when the handle 23 is turned, the friction between the hook portion 221 and the wall of the hanging hole 231 can be reduced, thereby reducing wear between the two and greatly reducing noise.

[0024] like Figure 1 , 2 As shown in Figures 3 and 6, the clamp assembly 2 includes a clamp housing 21, and a vertical hook portion 211 is integrally provided on the rear end of the clamp housing 21. Thus, the return spring 22 can be hooked onto the vertical hook portion 211 via the hook portion 221 located at its other end, thereby assembling the return spring 22 onto the clamp assembly 2. Since the clamp housing 21 is fixed, the return spring 22 will not shift during use, thus maintaining excellent elastic tension and ensuring that the toothed component 20 and the clamping mouth support 3 can firmly clamp the aluminum profile.

[0025] like Figure 3 , 6 As shown, in order to facilitate the assembly of the clamp assembly 2 and the base plate 1, the bottom of the clamp housing 21 is provided with a second through hole 212. The diameter of the second through hole 212 is larger than the outer diameter of the bolt insulating sleeve 42 and smaller than the outer diameter of the insulating washer 41. In this way, when the bolt insulating sleeve 42 is fitted on the bolt 51, it can pass smoothly through the second through hole 212, and the insulating washer 41 can be stably placed on the upper and lower sides of the second through hole 212, thereby blocking the current from flowing through the base plate 1 and the bolt and nut assembly 5 to the clamp assembly 2.

[0026] like Figure 3 , 6As shown, a second screw 14 for fixed assembly can also be provided between the base plate 1 and the clamp assembly 2. The base plate 1 is correspondingly provided with a second screw hole 13 for the second screw 14 to be locked in. The front and rear ends of the bottom of the clamp housing 21 are respectively provided with second through holes 212. The rear end of the clamp housing 21 is fixedly connected to the rear end of the base plate 1 through the bolt and nut assembly 5. The front end of the clamp housing 21 is fixedly connected to the front end of the base plate 1 by the second screw 14 passing through the insulating washer 41, the bolt insulating sleeve 42, the second through hole 212, and the insulating washer 41 in sequence. In this way, since the second screw 14 does not protrude from the base plate 1 and there is no need to screw on the nut, the bottom surface of the front end of the base plate 1 remains flat. When it is necessary to remove the clamping nozzle support 3 from the outside of the clamp, the first screw 12 can be inserted directly into the first screw hole 11 after passing through the first through hole 31 on the clamping nozzle support 3. This allows the top surface of the clamping nozzle support 3 to be tightly fitted and fixed together with the bottom surface of the base plate 1, thereby ensuring that the clamping nozzle support 3 has a very good load-bearing capacity and can firmly clamp the profile.

Claims

1. A galvanic clamping fixture with a galvanic current isolation structure, comprising a base plate (1), a clamping fixture assembly (2) fixedly mounted on the base plate (1), a clamping jaw carrier (3) mounted on the base plate (1) and abutting against a toothing (20) of the clamping fixture assembly (2), characterized in that: The tooth gear (20) is an insulating material tooth gear, the bottom plate (1) and the clamp mouth support (3) are copper conductive parts, and an insulating spacer assembly (4) is arranged at the fixed connection part between the bottom plate (1) and the clamp assembly (2) to enable the plating current of the clamp to pass through only the bottom plate (1) and the clamp mouth support (3) during work.

2. The electroplating fixture having a galvanic isolation structure according to claim 1, wherein: The bottom plate (1) and the clamp assembly (2) are provided with a bolt and nut assembly (5) for fixed assembly, and the insulating spacer assembly (4) is composed of an insulating washer (41) and a bolt insulating sleeve (42).

3. The electroplating fixture having a galvanic isolation structure according to claim 1, wherein: The bottom plate (1) and the clamp assembly (2) are provided with a bolt and nut assembly (5) for fixed assembly, and the insulating spacer assembly (4) is composed of an insulating washer (41) and a bolt insulating sleeve (42).

4. The electroplating fixture having a galvanic isolation structure according to claim 1, wherein: The bottom plate (1) is further provided with a first screw hole (11) and a first screw (12) for fixing the clamp mouth support (3), and the clamp mouth support (3) is correspondingly provided with a first through hole (31), and the clamp mouth support (3) is locked into the first screw hole (11) through the first through hole (31) by the first screw (12) to be installed on the bottom surface of the bottom plate (1).

5. The electroplating fixture having a galvanic isolation structure according to claim 1, wherein: The clamp assembly (2) comprises a reset spring (22), and one end of the reset spring (22) is provided with a hook part (221) with a buffer covering sleeve (222).

6. The electroplating fixture having a galvanic isolation structure according to claim 1, wherein: The clamp assembly (2) comprises a clamp housing (21), and a vertical hooking part (211) is integrally arranged on the rear end of the clamp housing (21).

7. The electroplating fixture having a galvanic isolation structure according to claim 1, wherein: The bottom plate (1) and the clamp assembly (2) are provided with a second screw (14) for fixed assembly, and the bottom plate (1) is correspondingly provided with a second screw hole (13) for locking the second screw (14).

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