A type of clamp-type electroplating hanger

Abstract

This application relates to a gripper-type electroplating fixture, primarily concerning the technical field of electroplating equipment. It includes a fixed rod with a hook at one end. At least one clamping mechanism is detachably mounted on the fixed rod along its length. Each clamping mechanism includes two clamping blocks arranged vertically, and each clamping block is equipped with at least one elastic gripper. A clamping space is formed between the two elastic grippers. When the position of the clamping mechanism is fixed and the clamping space increases, the two elastic grippers generate an elastic clamping force that brings them closer together. This application solves the problem that when electroplating workpieces without holes or large gaps, different sizes or shapes of workpieces require changing clamping mechanisms or fixtures, thus affecting production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of electroplating equipment, and in particular to a gripper-type electroplating fixture. Background Technology

[0002] During the electroplating process, fixtures are used to fix the workpiece to be plated and ensure good contact between it and the electrode to ensure uniform current distribution, thereby obtaining a high-quality electroplated layer.

[0003] For workpieces without holes or with large gaps, traditional electroplating racks typically use clamping or supporting methods to fix the workpiece. Supporting methods may cause the workpiece to loosen or fall off during electroplating due to solution flow, bubble impact, or mechanical vibration. Currently, racks use V-shaped elastic sheets to create a clamping space. When fixing the workpiece, the deformation of the V-shaped elastic sheet generates clamping force. However, the size of the workpiece that the V-shaped elastic sheet can clamp and fix through deformation is limited; the workpiece size must be strictly controlled between the clamping range of the V-shaped elastic sheet in its static state and the clamping range at maximum deformation. Therefore, in the production process, when electroplating workpieces of different sizes or shapes, it is necessary to replace the V-shaped elastic sheet or directly replace the rack, which affects production efficiency and increases production costs. Summary of the Invention

[0004] To address the issue that different sizes or shapes of workpieces require different clamping mechanisms or hangers when electroplating workpieces without holes or with large gaps, thus affecting production efficiency, this application provides a gripper-type electroplating hanger.

[0005] This application provides a gripper-type electroplating fixture, which adopts the following technical solution:

[0006] A clamp-type electroplating fixture includes a fixed rod with a hook installed at one end. At least one clamping mechanism is detachably installed on the fixed rod along its length. Each clamping mechanism includes two clamping blocks arranged vertically. Each clamping block is equipped with at least one elastic clamping claw. A clamping space is formed between the two vertically arranged elastic clamping claws. When the position of the clamping mechanism is fixed and the clamping space increases, the two vertically arranged elastic clamping claws generate an elastic clamping force that brings them closer together.

[0007] By adopting the above technical solution, stable clamping of workpieces of different sizes is achieved. The detachable clamping mechanism on the fixed rod can be adjusted in number and position as needed to adapt to various processing requirements. The upper and lower clamping blocks, together with the elastic jaws, form a clamping space. After adjusting the position of the clamping blocks according to the size of the workpiece, the workpiece is placed in the clamping space to increase the clamping space. The elastic jaws generate an elastic clamping force that moves closer together, ensuring that the workpiece is subjected to a uniform clamping force during the electroplating process. This avoids electroplating quality problems caused by workpiece loosening or falling off, while also improving the versatility and production efficiency of the fixture.

[0008] Preferably, the free ends of the elastic grippers on each of the gripping blocks in the same gripping mechanism are provided with mutually cooperating arc-shaped gripping portions, and the arc-shaped gripping portions are toothed.

[0009] By adopting the above technical solution, the free end of the elastic gripper is set as toothed, and the elastic grippers in the same clamping mechanism cooperate with each other. When clamping and fixing the workpiece, the concave surface of the arc-shaped clamping part wraps around the workpiece. Because the arc-shaped clamping part is set as toothed, the contact area between the workpiece and the elastic gripper is reduced, thereby ensuring that the workpiece remains stable during electroplating and also ensuring the electroplating quality.

[0010] Preferably, an adjusting ring is fixedly installed on any of the clamping blocks, and an adjusting pin is threaded onto the adjusting ring and abuts against the fixed rod.

[0011] By adopting the above technical solution, an adjusting ring is fixedly installed on the clamping block. The adjusting ring is threaded with an adjusting pin that abuts against the fixed rod, thereby realizing the position adjustment and fixation of the clamping mechanism on the fixed rod to adapt to workpieces of different sizes or shapes. This avoids the problem of frequently changing the hanger or elastic gripper due to changes in workpiece size, improves the production efficiency of electroplating processing and reduces production costs.

[0012] Preferably, the fixing rod has evenly distributed positioning holes along its axial direction, and the positioning holes match the adjusting pin.

[0013] By adopting the above technical solution, the clamping mechanism can achieve precise position fixation through the cooperation of the adjusting pin and the positioning hole. The positioning hole on the fixed rod matches the adjusting pin, making the position adjustment of the clamping mechanism on the fixed rod more flexible and stable, avoiding the problem of workpiece loosening or falling off due to unstable position.

[0014] Preferably, any of the clamping blocks has a liquid-permeable hole that penetrates the clamping block.

[0015] By adopting the above technical solution, the through-holes on the clamping block can effectively improve the flow state of the electroplating solution near the clamping mechanism during the electroplating process, reduce the obstruction of the clamping block and the resulting poor flow or eddy current phenomenon of the electroplating solution, thereby reducing the risk of uneven electroplating layer thickness and improving electroplating quality.

[0016] Preferably, any of the clamping blocks has a dividing groove on its side wall that divides the edge of the clamping block into an upper lobe and a lower lobe. The upper lobe and the lower lobe have corresponding fixing grooves. A fixing pin passes through the fixing groove and a fixing nut is threaded onto the fixing pin. The end of the elastic claw away from the arc-shaped clamping part has a mounting hole that matches the fixing pin.

[0017] By adopting the above technical solution, the dividing groove divides the edge of the clamping block into an upper lobe and a lower lobe. After the fixing pin passes through the fixing groove of the upper lobe, the mounting hole of the elastic claw, and the fixing groove of the lower lobe in sequence, the upper lobe and the lower lobe are brought closer together by cooperating with the fixing nut, so as to fix the elastic claw between the upper lobe and the lower lobe. This allows the elastic claw to be adjusted and fixed in the dividing groove corresponding to the position of the fixing groove, so as to adapt to the fixing of more workpieces of different sizes, thereby improving production efficiency and making it convenient to replace the elastic claw to accommodate the fixing of more workpieces.

[0018] Preferably, at least two mounting holes are evenly provided along the length direction of the elastic gripper.

[0019] By adopting the above technical solution, the length of the clamping block can be adjusted by the mounting hole to adapt to the size of the workpiece, ensure the stability of the workpiece on the hanger, and prevent the workpiece from shaking during the electroplating process.

[0020] Preferably, a support base is fixedly installed at the end of the fixing rod away from the hook.

[0021] By adopting the above technical solution, when the workpiece is suspended in the electroplating tank by the hook on the fixed rod, the setting of the support base can enhance the stability of the hanger by ensuring that the support base contacts the bottom of the electroplating tank when the hanger is placed in the electroplating tank. Furthermore, when the hanger is not in use, the support base can keep the hanger stably placed on the ground.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting a detachable clamping mechanism on the fixed rod and using elastic jaws to form a clamping space, an elastic clamping force is generated when the clamping space increases, which can adapt to the clamping requirements of workpieces of different sizes. There is no need to frequently change the hanger or elastic plate, which significantly improves production efficiency and reduces production costs.

[0024] 2. The free ends of the elastic grippers are toothed, and the free ends of the elastic grippers on the two gripping blocks in the same clamping mechanism are mutually cooperating arc-shaped clamping parts. The workpiece is wrapped by the arc-shaped concave surface, and the toothed design reduces the contact area between the workpiece and the elastic grippers, effectively preventing the workpiece from loosening or falling off during the electroplating process due to solution flow, bubble impact or mechanical vibration, improving the stability of workpiece fixation, and ensuring the electroplating quality of the workpiece.

[0025] 3. The clamping mechanism achieves position fixation through adjusting rings and adjusting pins. Combined with the positioning holes on the fixing rod, this makes the position adjustment of the clamping mechanism more flexible and precise, further enhancing the adaptability of the fixture to workpieces of various sizes. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram mainly illustrating the overall structure in Embodiment 1 of this application;

[0027] Figure 2 This is a schematic diagram of the cantilever structure in Embodiment 1 of this application;

[0028] Figure 3 This is a structural diagram illustrating the overall structure in Embodiment 2 of this application;

[0029] Figure 4 This is a schematic diagram of the cantilever and suspension rod cooperation in Embodiment 2 of this application;

[0030] Figure 5 This is an exploded view of the clamping block and elastic gripper in Embodiment 2 of this application;

[0031] Figure 6 This is a schematic diagram of the structure of the clamping block and the elastic gripper in Embodiment 2 of this application.

[0032] Reference numerals: 1. Fixing rod; 11. Hook; 12. Support base; 13. Positioning hole; 2. Clamping mechanism; 21. Clamping block; 22. Elastic gripper; 221. Arc-shaped clamping part; 222. Mounting hole; 23. Adjusting ring; 24. Adjusting pin; 25. Liquid permeation hole; 26. Dividing groove; 261. Upper lobe; 262. Lower lobe; 27. Adjusting groove; 28. Fixing pin; 29. ​​Fixing nut. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail.

[0034] This application discloses a gripper-type electroplating hanger. Example

[0035] Reference Figures 1-2A clamp-type electroplating fixture includes a fixed rod 1 with a hook 11 fixedly installed at one end. At least one clamping mechanism 2 is detachably installed on the fixed rod 1 along its length. The clamping mechanism 2 includes two clamping blocks 21 arranged vertically. Each clamping block 21 is equipped with at least one elastic clamping claw 22. A clamping space is formed between the two elastic clamping claws 22. When the position of the clamping mechanism 2 is fixed and the clamping space is increased, the two elastic clamping claws 22 generate an elastic clamping force that moves closer to each other. That is, after adjusting the distance between the two clamping blocks 21 according to the workpiece size, when the workpiece is placed between the two elastic clamping claws 22, the workpiece generates an expansion force on the elastic clamping claws 22, and the elastic clamping claws 22 generate an elastic clamping force on the workpiece, thereby fixing the workpiece.

[0036] Reference Figure 1 To reduce the contact area between the elastic gripper 22 and the workpiece, the free end of the elastic gripper 22 is provided with an arc-shaped clamping part 221. The elastic grippers 22 on the two clamping blocks 21 in the same clamping mechanism 2 cooperate to form a clamping space, and the arc-shaped clamping parts 221 face each other so that the free end of the elastic gripper 22 can grip the workpiece. At the same time, the arc-shaped clamping part 221 is toothed to reduce the contact area between the arc-shaped clamping part 221 and the workpiece. During the process of clamping and fixing the workpiece, the arc-shaped clamping part 221 covers the workpiece to ensure its stability, while the arc-shaped clamping part 221 is toothed to reduce the contact area between the elastic gripper 22 and the workpiece, thereby ensuring the electroplating quality of the workpiece.

[0037] Reference Figure 1 Each clamping block 21 is fixedly equipped with an adjusting ring 23, and an adjusting pin 24 is threaded onto the adjusting ring 23, which abuts against the fixed rod 1, so as to realize the position adjustment and relative fixation of the clamping block 21 on the fixed rod 1. During the electroplating process of the workpiece, the size of the clamping space formed by the elastic jaws 22 is adjusted by adjusting the position of the clamping block 21, thereby fixing workpieces of different sizes and improving production efficiency.

[0038] Reference Figure 1 Each clamping block 21 has a liquid permeation hole 25 that passes through each clamping block 21. The liquid permeation hole 25 is opened to facilitate the flow of electrolyte between the clamping blocks 21, reduce the obstruction of electrolyte by the clamping blocks 21, thereby reducing the risk of uneven electroplating layer thickness and improving electroplating quality.

[0039] Reference Figure 1A support base 12 is fixedly installed at the end of the fixing rod 1 away from the hook 11. The support base 12 can ensure that the hanger can be stably placed when not in use. At the same time, when the hanger suspends the workpiece in the electroplating tank, the support base 12 can support the hanger at the bottom of the electroplating tank to further ensure the stability of the workpiece on the hanger.

[0040] The implementation principle of this application embodiment is as follows:

[0041] Before electroplating, the position of each clamping block 21 is adjusted according to the size of the workpiece. During adjustment, the adjusting pin 24 is rotated to loosen the clamping force on the fixing rod 1. After the position of the clamping block 21 is adjusted, the adjusting pin 24 is rotated again to tighten the adjusting pin 24 against the fixing rod 1, thus completing the position adjustment and fixing of the clamping block 21. Then the workpiece is placed between the elastic jaws 22 of the two clamping blocks 21.

[0042] When the workpiece is placed between the elastic grippers 22, the workpiece exerts an outward expansion force relative to the clamping space on the elastic grippers 22. The elastic grippers 22 then clamp the workpiece. The arc-shaped clamping part 221 of the elastic grippers 22 contacts the workpiece to fix it. The concave surface of the arc-shaped clamping part 221 contacts the workpiece, and the toothed arc-shaped clamping part 221 uses a small area of ​​contact to fix the workpiece. After the workpiece is fixed, the hanger is suspended above the electroplating tank by the hook 11, and the workpiece fixed on the hanger is immersed in the electrolyte of the electroplating tank. At this time, the support base 12 can be placed at the bottom of the electroplating tank to enhance the stability of the hanger in the electroplating tank. The clamping space of the clamping mechanism can be adjusted by adjusting the position of the clamping block 21. During the production process, workpieces of different sizes can be fixed without changing the clamping mechanism 2 or the hanger to complete the electroplating of workpieces of different sizes, thereby improving production efficiency. Example

[0043] Reference Figures 3-6 Unlike embodiment 1, the fixed rod 1 has positioning holes 13 evenly distributed along its length, and the positioning holes 13 are matched with the adjusting pins 24. When the position of the clamping block 21 is adjusted by the adjusting ring 23, the adjusting pins 24 are threadedly connected to the adjusting ring 23 and abut against the positioning holes 13 to improve the stability between the clamping block 21 and the fixed rod 1.

[0044] Each clamping block 21 has a dividing groove 26 on its side wall, which divides the edge of the clamping block 21 into an upper lobe 261 and a lower lobe 262. Corresponding fixing grooves 27 are provided on the upper lobe 261 and the lower lobe 262. A fixing pin 28 is fixedly installed in the fixing groove 27, and a fixing nut 29 is threaded onto the fixing pin 28. The distance between the upper lobe 261 and the lower lobe 262 can be changed by the engagement of the fixing pin 28 and the fixing nut 29. The end of the elastic gripper 22 away from the arc-shaped clamping part 221 has a mounting hole 222 that matches the fixing pin 28, so that the fixing pin 28 passes sequentially through the fixing groove 27 of the upper lobe 261 and the elastic gripper. The mounting hole 222 of 22 and the fixing groove 27 of the lower lobe 262 cooperate with the fixing nut 29 to clamp the elastic gripper 22 between the upper lobe 261 and the lower lobe 262. The fixing pin 28 cooperates with the fixing nut 29 to bring the upper lobe 261 and the lower lobe 262 closer to each other, so that the position of the elastic gripper 22 between the upper lobe 261 and the lower lobe 262 is relatively fixed. Furthermore, the elastic gripper 22 and the dividing groove 26 are relatively movable. The distance between two adjacent elastic grippers 22 on the same clamping block 21 can be adjusted by changing the position of the elastic gripper 22 in the dividing groove 26, so as to accommodate the fixing of more workpieces of different sizes.

[0045] Meanwhile, at least two mounting holes 222 are provided on the elastic gripper 22 along the length of the elastic gripper 22. The length of the elastic gripper 22 extending out of the clamping block 21 can be changed by changing the position of the mounting holes 222 that cooperate with the fixing pin 28. When the workpiece is heavy, the length of the elastic gripper 22 extending out of the clamping block 21 can be shortened to prevent the workpiece from shaking and falling off the elastic gripper 22 when it is fixed on the elastic gripper 22. When the workpiece is light, the length of the elastic gripper 22 extending out of the clamping block 21 can be appropriately extended to ensure that the elastic gripper 22 can clamp and fix the workpiece by using elastic deformation.

[0046] The implementation principle of this application embodiment is as follows:

[0047] Before using the elastic gripper 22 to fix the workpiece, first adjust the distance between the two gripping blocks 21 of the clamping mechanism 2 according to the size of the workpiece. When adjusting the position of the gripping block 21, first rotate the adjusting pin 24 so that it is no longer pressed against the fixing rod 1, so that the adjusting ring 23 can slide on the fixing rod 1. After the position of the gripping block 21 is determined, rotate the adjusting pin 24 so that it is pressed against the positioning hole 13, thereby completing the relative fixation between the gripping block 21 and the fixing rod 1. Then adjust the position of the elastic gripper 22 in the dividing groove 26 to adjust the distance between two adjacent elastic grippers 22 on the same gripping block 21, thereby ensuring that the corresponding upper and lower elastic grippers 22 can cooperate to fix the workpiece.

[0048] When fixing the workpiece, when the workpiece is placed between the elastic jaws 22, the workpiece generates an outward expansion force relative to the clamping space on the elastic jaws 22. The elastic jaws 22 form a clamping force on the workpiece. The arc-shaped clamping part 221 of the elastic jaws 22 contacts the workpiece to fix it. The concave surface of the arc-shaped clamping part 221 contacts the workpiece, and the toothed arc-shaped clamping part 221 uses a small area of ​​contact to fix the workpiece.

[0049] After the workpiece is fixed, the hanger is suspended above the electroplating tank via hook 11, and the workpiece fixed on the hanger is immersed in the electrolyte of the electroplating tank. At this time, the support base 12 can be placed at the bottom of the electroplating tank to enhance the stability of the hanger in the electroplating tank. The clamping space of the clamping mechanism can be adjusted by adjusting the position of the clamping block 21. During the production process, workpieces of different sizes can be fixed without changing the clamping mechanism 2 or the hanger to complete the electroplating of workpieces of different sizes, thereby improving production efficiency.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gripper-type electroplating fixture, characterized in that: The device includes a fixed rod (1) with a hook (11) installed at one end. At least one clamping mechanism (2) is detachably installed on the fixed rod (1) along its length. Each clamping mechanism (2) includes two clamping blocks (21) arranged vertically. Each clamping block (21) is equipped with at least one elastic claw (22). A clamping space is formed between the two elastic claws (22) arranged vertically. When the position of the clamping mechanism (2) is fixed and the clamping space increases, the two elastic claws (22) arranged vertically generate an elastic clamping force that moves closer to each other.

2. The clamp-type electroplating fixture according to claim 1, characterized in that: In the same clamping mechanism (2), the free ends of the elastic grippers (22) on each clamping block (21) are provided with mutually cooperating arc-shaped clamping parts (221), and the arc-shaped clamping parts (221) are toothed.

3. The clamp-type electroplating fixture according to claim 1, characterized in that: An adjusting ring (23) is fixedly installed on any of the clamping blocks (21), and an adjusting pin (24) is threaded onto the adjusting ring (23) and abuts against the fixed rod (1).

4. The clamp-type electroplating fixture according to claim 3, characterized in that: The fixing rod (1) has uniformly distributed positioning holes (13) along its axial direction, and the positioning holes (13) match the adjusting pin (24).

5. A gripper-type electroplating fixture according to claim 1, characterized in that: Each of the clamping blocks (21) is provided with a liquid-permeable hole (25) that penetrates the clamping block (21).

6. A gripper-type electroplating fixture according to claim 2, characterized in that: A dividing groove (26) is provided on the side wall of any of the clamping blocks (21) to divide the edge of the clamping block (21) into an upper lobe (261) and a lower lobe (262). The upper lobe (261) and the lower lobe (262) are provided with corresponding fixing grooves (27). A fixing pin (28) is passed through the fixing groove (27) and a fixing nut (29) is threaded on the fixing pin (28). The end of the elastic claw (22) away from the arc-shaped clamping part (221) is provided with a mounting hole (222) that matches the fixing pin (28).

7. A gripper-type electroplating fixture according to claim 6, characterized in that: At least two mounting holes (222) are evenly provided along the length of the elastic gripper (22).

8. A gripper-type electroplating fixture according to claim 1, characterized in that: A support base (12) is fixedly installed at the end of the fixed rod (1) away from the hook (11).

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