Electroplating clamp capable of synchronous and uniform tensioning

Abstract

The utility model discloses a kind of electroplating clamps of synchronous uniform tension, it is related to electroplating clamp technical field, including mounting bracket, two horizontal direction's sliding slot is opened in mounting bracket, two sliding slots are symmetrically arranged;Transmission connecting rod, transmission connecting rod has two groups, and it is continuous X type structure, the top of two groups of transmission connecting rod is respectively slidably installed in the two sliding slots of mounting bracket, two groups of transmission connecting rod are along sliding slot and move towards each other or away from each other;The end of two groups of transmission connecting rod is connected, and is installed in the middle part of mounting bracket;The scheme is by setting two groups of transmission connecting rod moving towards each other or away from each other on mounting bracket, drive multiple clamping components synchronous action, make the stress of each clamping point keep consistent, effectively solve the problem that the stress of each clamping point in prior art is inconsistent, guarantee the uniformity of workpiece different area tension degree, and then ensure that current distribution is uniform in electroplating process, improve the uniformity and binding force of electroplating layer thickness.

Description

Technical Field

[0001] This utility model relates to an electroplating fixture that can be synchronously and uniformly tensioned, belonging to the field of electroplating fixture technology. Background Technology

[0002] In the field of electroplating, vertical electroplating fixtures are key equipment for achieving stable workpiece clamping and precise electroplating. Their performance directly affects the uniformity of the electroplated layer, the processing quality of the workpiece, and production efficiency.

[0003] Existing clamping mechanisms are mostly single-end driven or segmented independent control modes. When the workpiece is warped, the force at each clamping point is difficult to be consistent, resulting in differences in the tension of different areas of the workpiece. This asynchronous tensioning method makes it impossible to effectively correct the warped parts of the workpiece, and some areas remain bent or wrinkled, which in turn affects the uniformity of current distribution during electroplating, causing quality problems such as uneven electroplating thickness and reduced adhesion. In addition, when the force at some clamping points is too large, while other areas are not effectively stressed due to warping, the workpiece will be subjected to tensile forces exceeding its material strength limit locally. Especially in areas with large warping, cracks or even tears are very likely to occur. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electroplating fixture that can be tensioned synchronously and uniformly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an electroplating fixture capable of synchronous and uniform tensioning, comprising...

[0006] The mounting bracket has two horizontal sliding grooves, which are symmetrically arranged.

[0007] The transmission linkage consists of two sets, both of which are continuous X-shaped structures. The top ends of the two sets of transmission linkages are slidably mounted in two grooves on the mounting bracket. The two sets of transmission linkages move towards or away from each other along the grooves. The ends of the two sets of transmission linkages are connected and mounted in the middle of the mounting bracket. A tension spring is provided at the connection point of the ends of the two sets of transmission linkages. The tension spring is horizontally positioned and its two ends are respectively connected to the ends of the two sets of transmission linkages.

[0008] Clamping assemblies, there are multiple clamping assemblies, all of which are used to clamp the workpiece to be electroplated. The multiple clamping assemblies are symmetrically and spaced apart on both sides of the bottom of the two sets of transmission links.

[0009] When the two sets of transmission links move in opposite directions, the clamping components on the two sets of transmission links simultaneously stretch the workpiece to be electroplated in an inclined upward direction, and the stretching directions of the clamping components on the two sets of transmission links are opposite; when the two sets of transmission links move towards each other, the clamping components on the two sets of transmission links simultaneously release the workpiece to be electroplated.

[0010] Preferably, the mounting bracket has a vertically elongated hole on the lower side of its middle section, and the lower side of the connection part of the two sets of transmission connecting rods slides in fit with the elongated hole.

[0011] Preferably, each group of transmission links includes multiple first links and second links, with the first links and second links being movably connected at their middle parts and the ends of adjacent first links and second links being movably connected to form a continuous X-shaped structure.

[0012] Preferably, the clamping assembly includes a mounting plate, a first clamp, a second clamp, and a handle; the mounting plate is connected and fixed to the bottom of the transmission link, the first clamp is connected and fixed to the bottom of the mounting plate, and connecting members are provided on both sides of the bottom of the mounting plate; the front ends of the second clamp and the handle are rotatably mounted on the connecting members, and the rear end of the handle is connected and fixed to the second clamp; the handle is used to drive the second clamp to clamp the first clamp.

[0013] Preferably, anti-collision pads are provided at corresponding positions of the mounting plate and the handle.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] This utility model provides a synchronous and uniformly tensioned electroplating fixture. By setting two sets of transmission links that move in opposite directions or back to back on the mounting bracket, multiple clamping components are driven to move synchronously, so that the force on each clamping point is consistent. This effectively solves the problem of inconsistent force on each clamping point in the prior art, ensures the uniformity of tension in different areas of the workpiece, and thus ensures uniform current distribution during the electroplating process, improving the uniformity of electroplating layer thickness and adhesion. Attached Figure Description

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0017] Appendix Figure 1 This is a schematic diagram of the initial state of an electroplating fixture capable of synchronous and uniform tensioning according to the present invention.

[0018] Appendix Figure 2 This is a structural schematic diagram of the tensioning state of an electroplating fixture that can be synchronously and uniformly tensioned according to the present invention.

[0019] Appendix Figure 3 For the appendix Figure 2Enlarged view of point A in the middle;

[0020] Appendix Figure 4 This is a three-dimensional schematic diagram of an electroplating fixture capable of synchronous and uniform tensioning according to the present invention.

[0021] Appendix Figure 5 This is a three-dimensional schematic diagram from another perspective of the electroplating fixture that can be synchronously and uniformly tensioned according to the present invention.

[0022] Appendix Figure 6 This is a schematic diagram of the clamping assembly described in this utility model.

[0023] In the diagram: 1. Mounting bracket; 11. Slide groove; 2. Transmission connecting rod; 21. First rod; 22. Second rod; 3. Tension spring; 4. Clamping assembly; 41. Mounting plate; 411. Connector; 42. First chuck; 43. Second chuck; 44. Handle; 5. Workpiece to be electroplated; 6. Anti-collision pad; 7. Elongated hole. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] As attached Figure 1-5 As shown, the electroplating fixture of this utility model, which can be synchronously and uniformly tensioned, includes a mounting bracket 1, a transmission link 2, and a clamping assembly 4.

[0026] The mounting bracket 1 has two horizontal sliding grooves 11, which are symmetrically arranged; a vertical elongated hole 7 is provided on the lower side of the middle part of the mounting bracket 1.

[0027] The transmission linkage 2 has two sets, both of which are continuous X-shaped structures. Specifically, each set of transmission linkage 2 includes multiple first rods 21 and second rods 22. The middle parts of the first rods 21 and second rods 22 are movably connected by components such as pins. The ends of adjacent first rods 21 and second rods 22 are also movably connected by pins to form a continuous X-shaped structure.

[0028] The ends of the two sets of transmission connecting rods 2 are connected and installed in the middle of the mounting bracket 1. The top ends of the two sets of transmission connecting rods 2 are slidably installed in two slide grooves 11 on the mounting bracket 1 by components such as sliders. The slide grooves 11 provide a precise guide track for the sliding of the transmission connecting rods 2, so that the two sets of transmission connecting rods 2 can move towards or away from each other along the slide grooves 11, ensuring that the transmission connecting rods 2 maintain a stable horizontal displacement during the movement. The lower side of the connection part of the two sets of transmission connecting rods 2 is slidably engaged with the elongated hole 7. The elongated hole 7 can limit and guide the movement of the connection part of the transmission connecting rods 2, ensuring that the movement trajectory of the transmission connecting rods 2 is accurate and controllable.

[0029] It should be noted that the connection part of the two sets of transmission links 2 is mounted on the mounting bracket 1, so the connection part does not move horizontally with the two sets of transmission links 2.

[0030] Furthermore, a tension spring 3 is provided at the end connection of the two sets of transmission connecting rods 2. The tension spring 3 is horizontally positioned and its two ends are respectively connected to the ends of the two sets of transmission connecting rods 2. The tension spring 3 can help the two sets of transmission connecting rods 2 to reset on the one hand, and prevent the workpiece 5 to be electroplated from tearing due to excessive tension when the transmission connecting rods 2 are pulled apart.

[0031] As attached Figure 6 As shown, there are multiple clamping components 4, all of which are used to clamp the workpiece 5 to be electroplated. The multiple clamping components 4 are symmetrically and spaced apart on both sides of the bottom of the two sets of transmission links 2. Specifically, the clamping component 4 includes a mounting plate 41, a first chuck 42, a second chuck 43, and a handle 44. The mounting plate 41 is connected and fixed to the bottom of the transmission link 2, the first chuck 42 is connected and fixed to the bottom of the mounting plate 41, and the bottom sides of the mounting plate 41 are provided with connecting parts 411. The front ends of the second chuck 43 and the handle 44 are rotatably mounted on the connecting parts 411 through a pin. The rear end of the handle 44 is connected and fixed to the second chuck 43. The handle 44 is used to drive the second chuck 43 to clamp the first chuck 42 to clamp the workpiece 5 to be electroplated.

[0032] When the two sets of transmission links move in opposite directions, the clamping components on the two sets of transmission links simultaneously pull the workpiece to be electroplated in an inclined upward direction, and the pulling directions of the clamping components on the two sets of transmission links are opposite; when the two sets of transmission links move towards each other, the clamping components on the two sets of transmission links simultaneously release the workpiece to be electroplated.

[0033] As attached Figure 1-3 As shown, during operation, in the initial state, both sets of transmission links 2 are in a contracted state, and the tension spring 3 is also in a contracted state. At this time, the clamping components 4 are all in a vertical state, and the workpiece 5 to be electroplated is not stretched. When the two sets of transmission links 2 are subjected to force and move in opposite directions, the transmission links 2 are pulled apart, and the clamping components 4 on the transmission links 2 tilt upward. Specifically, the clamping component 4 on the left side deflects counterclockwise, and the clamping component 4 on the right side deflects counterclockwise simultaneously. Under the force of the clamping components 4, the workpiece 5 to be electroplated tilts upward and is stretched to both sides, so that the workpiece 5 to be electroplated is fully opened, avoiding the occurrence of local wrinkles. When the external force is removed, under the elastic force of the tension spring 3, the two sets of transmission links 2 contract synchronously and move in opposite directions, and the workpiece 5 to be electroplated is released.

[0034] Furthermore, anti-collision pads 6 are provided at corresponding positions of the mounting plate 41 and the handle 44. The anti-collision pads 6 can be made of flexible materials, such as rubber, to prevent hard collisions between the mounting plate 41 and the handle 44 during the rotation of the handle 44, thus playing a buffering and protective role.

[0035] In summary, this utility model, by setting two sets of transmission links 2 that move in opposite directions or back to back on the mounting bracket 1, drives multiple clamping components 4 to move synchronously, so that the force on each clamping point is consistent, effectively solving the problem of inconsistent force on each clamping point in the prior art, ensuring the uniformity of tension in different areas of the workpiece, thereby ensuring uniform current distribution during electroplating, and improving the uniformity of electroplating layer thickness and adhesion.

[0036] Meanwhile, the synchronous and uniform tensioning method ensures that the tension on each part of the workpiece 5 to be electroplated is uniform, and there will be no situation where the force at some clamping points is too large while the force in other areas is insufficient. This avoids the workpiece being subjected to tensile forces exceeding its material strength limit in some areas, effectively preventing cracks or even tears in areas with large warping, and protecting the integrity of the workpiece.

[0037] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model; all technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of protection of this utility model.

Claims

1. An electroplating fixture capable of synchronous and uniform tensioning, characterized in that: Include Mounting bracket (1), the mounting bracket (1) has two horizontal sliding grooves (11) provided on it, the two sliding grooves (11) are symmetrically arranged; The transmission link (2) has two sets, both of which are continuous X-shaped structures. The top ends of the two sets of transmission links (2) are slidably installed in two grooves (11) on the mounting bracket (1). The two sets of transmission links (2) move towards or away from each other along the grooves (11). The ends of the two sets of transmission links (2) are connected and installed in the middle of the mounting bracket (1). A tension spring (3) is provided at the connection of the ends of the two sets of transmission links (2). The tension spring (3) is horizontally set and its two ends are respectively connected to the ends of the two sets of transmission links (2). Clamping assembly (4), there are multiple clamping assemblies (4), all of which are used to clamp the workpiece (5) to be electroplated. The multiple clamping assemblies (4) are symmetrically and spaced apart on both sides of the bottom of the two sets of transmission connecting rods (2). When the two sets of transmission links (2) move in opposite directions, the clamping components (4) on the two sets of transmission links (2) simultaneously stretch the workpiece (5) to be electroplated in an inclined upward direction, and the stretching directions of the clamping components (4) on the two sets of transmission links (2) are opposite; when the two sets of transmission links (2) move towards each other, the clamping components (4) on the two sets of transmission links (2) simultaneously release the workpiece (5) to be electroplated.

2. The electroplating fixture capable of synchronous and uniform tensioning according to claim 1, characterized in that: The mounting bracket (1) has a vertically oriented elongated hole (7) on its lower middle part, and the lower part of the connection part of the two sets of transmission connecting rods (2) slides in cooperation with the elongated hole (7).

3. A synchronously and uniformly tensioned electroplating fixture according to claim 1 or 2, characterized in that: Each set of transmission links (2) includes multiple first links (21) and second links (22), the first links (21) and second links (22) are movably connected in the middle, and the ends of adjacent first links (21) and second links (22) are movably connected to form a continuous X-shaped structure.

4. The electroplating fixture capable of synchronous and uniform tensioning according to claim 1, characterized in that: The clamping assembly (4) includes a mounting plate (41), a first chuck (42), a second chuck (43), and a handle (44). The mounting plate (41) is connected and fixed to the bottom of the transmission link (2). The first chuck (42) is connected and fixed to the bottom of the mounting plate (41). Connectors (411) are provided on both sides of the bottom of the mounting plate (41). The front ends of the second chuck (43) and the handle (44) are rotatably mounted on the connectors (411). The rear end of the handle (44) is connected and fixed to the second chuck (43). The handle (44) is used to drive the second chuck (43) to clamp the first chuck (42).

5. The electroplating fixture capable of synchronous and uniform tensioning according to claim 4, characterized in that: Anti-collision pads (6) are provided at corresponding positions on the mounting plate (41) and the handle (44).

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