Electroplating hanger for pin protection cover

Abstract

The electroplating hanger comprises a frame and a plurality of groups of hanging racks, the groups of hanging racks are arranged in parallel and are fixed in the frame, each group of hanging racks comprises an upper hanging wire and a lower hanging wire which are arranged in an up-and-down separated manner, and arc-shaped inner openings of a plurality of pin protection covers are hung on the upper hanging wires; and the lower hanging wire is clamped between the two binding surfaces of the corresponding pin protection cover to open the two binding surfaces. The upper hanging wire plays a role in hanging the pin protection cover, the lower hanging wire slightly opens the two binding faces, electroplating liquid can flow into a gap between the two binding faces, cleaning operation is completed, it is guaranteed that the interior of the pin protection cover can be cleaned, and the pin protection cover cannot be scratched by the hanging wires.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, and in particular to an electroplating fixture for pin protection covers. Background Technology

[0002] Existing pin protection covers are commonly used to protect the gold-plated pins of components, ensuring that the gold-plated pins are not contaminated by foreign objects. The structure of the pin protection cover is as follows: Figure 1 As shown, the two mating surfaces (indicated by the arrows) must be completely pressed together to clamp the gold-plated leads during use. This also prevents passivation of the mating surfaces during electroplating, hindering the penetration of the plating process and making effective cleaning of the mating surfaces impossible. In the sample stage, commonly used electroplating racks in electroplating plants either use hooks to hold the arc-shaped inner opening of the lead protection cover or clamps to hold the opening of the lead protection cover. However, neither method can effectively clean the oil stains on the mating surfaces, and foreign objects inside the triangular inner opening are not thoroughly cleaned, easily scratching the lead protection cover. These methods fail to meet the cleaning requirements for lead protection covers with tightly pressed mating surfaces and inner openings.

[0003] Therefore, existing technologies still need to be improved and enhanced. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an electroplating rack for pin protection covers, so as to solve the problems that existing electroplating racks are prone to scratching the pin protection covers and cannot clean the oil stains and foreign objects on the bonding surface.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electroplating fixture for pin protection covers includes a frame and several sets of hangers. Each set of hangers is arranged in parallel and fixed within the frame. Each set of hangers includes upper and lower hanging wires that are separately arranged. The arc-shaped inner openings of multiple pin protection covers are hung on the upper hanging wires. The lower hanging wires are engaged between the two mating surfaces of the corresponding pin protection covers, thus opening the two mating surfaces.

[0007] In the electroplating fixture for the pin protection cover, the upper and lower hanging wires are stainless steel wires.

[0008] In the electroplating fixture for the pin protection cover, the diameter of the upper and lower hanging wires is 0.2 mm.

[0009] The electroplating fixture for the pin protection cover also includes several screws and nuts that match the screws. A fixing plate is provided on one side of the frame, and several screw holes are spaced apart on the fixing plate. Aligned threaded holes are provided on both sides of the frame. Each screw passes through the corresponding screw hole and is fastened to the bottom of the fixing plate by a nut. One end of a hanging wire passes through the upper threaded hole on one side of the frame, the upper threaded hole on the other side of the frame, the lower threaded hole on the other side of the frame, and the lower threaded hole on one side of the frame in sequence. After the two ends of the hanging wire are pulled tight, they are wrapped around the screw shank.

[0010] In the electroplating fixture of the pin protection cover, the threaded holes and screw holes are arranged alternately.

[0011] The electroplating fixture for the pin protection cover also includes a threaded long screw. A fixing plate is provided on one side of the frame, and the long screw is suspended and fixed below the fixing plate. One end of a hanging wire passes through the upper thread hole on one side of the frame, the upper thread hole on the other side of the frame, the lower thread hole on the other side of the frame, and the lower thread hole on one side of the frame in sequence. After the two ends of the hanging wire are pulled tight, they are wound and fixed along the thread of the long screw.

[0012] In the electroplating fixture for the pin protection cover, a positioning hole is opened on each side of the frame. When the frame is placed in the electroplating box, the frame is positioned and installed by passing a positioning rod or positioning line through the two aligned positioning holes.

[0013] Compared to existing technologies, the electroplating fixture for pin protection covers provided by this utility model includes a frame and several sets of hangers. Each set of hangers is arranged in parallel and fixed within the frame. Each set of hangers includes upper and lower hanging wires separately arranged vertically. The arc-shaped inner openings of multiple pin protection covers are hung on the upper hanging wires. The lower hanging wires are engaged between the two mating surfaces of the corresponding pin protection cover, opening the two mating surfaces apart. The upper hanging wires serve to hold the pin protection cover, while the lower hanging wires slightly open the two mating surfaces, allowing the electroplating solution to flow into the gap between the two mating surfaces, completing the cleaning operation and ensuring that the inside of the pin protection cover is thoroughly cleaned. Furthermore, the hanging wires will not scratch the pin protection cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the existing pin protection cover.

[0015] Figure 2 These are four views of the electroplating fixture for the pin protection cover provided by this utility model.

[0016] Figure 3 This is an exploded view of the electroplating fixture for the pin protection cover provided by this utility model. Detailed Implementation

[0017] This utility model provides an electroplating fixture for pin protection covers. To make the objectives, technical solutions, and advantages of this utility model clearer and more explicit, the following detailed description, with reference to the accompanying drawings and embodiments, further illustrates the utility model. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this utility model.

[0018] Please also refer to Figure 1 and Figure 2 The present invention provides an electroplating fixture for pin protection covers, comprising a frame 1 and several sets of hangers 2. Each set of hangers 2 is arranged in parallel and fixed inside the frame 1. Each set of hangers 2 includes an upper hanging wire 4 and a lower hanging wire 5 that are set separately at the top and bottom. The arc-shaped inner opening of multiple pin protection covers 3 is hung on the upper hanging wire 4. The lower hanging wire 5 is stuck between the two mating surfaces of the corresponding pin protection cover 3, thus opening the two mating surfaces.

[0019] In this embodiment, when multiple pin protection covers 3 are inserted into a set of hangers 2 with their open ends facing downwards, the upper hanging wire 4 mainly serves to hang the pin protection covers 3, contacting the arc-shaped inner opening of the pin protection covers 3; the lower hanging wire 5 mainly serves to slightly open the two mating surfaces, located in the middle of the two mating surfaces. Then, the electroplating fixture is placed in the electroplating tank. The mating surfaces are opened, allowing the electroplating solution to flow into the gap between the two mating surfaces, completing the cleaning operation and ensuring that the inside of the pin protection covers 3 is thoroughly cleaned without the hanging wires scratching the pin protection covers.

[0020] The size of the gap between the two mating surfaces is the diameter of the lower hanging wire 5. The upper hanging wire 4 and the lower hanging wire 5 are preferably stainless steel wires with a diameter of 0.2 mm (∮0.2 mm). The spacing between the upper hanging wire 4 and the lower hanging wire 5 is preferably the distance from the arc-shaped inner opening of the pin protection cover 3 to the middle of the mating surface.

[0021] To facilitate subsequent replacement of the hanging wires, when each set of hanging brackets 2 is fixed inside the frame 1, it is preferable to use... Figure 1 and Figure 2The screw-fixing method shown includes several screws 6 and matching nuts 7 for the electroplating fixture. A fixing plate 8 is provided on one side of the frame 1, which can be integrally formed with the frame 1. Several screw holes 9 are spaced apart on the fixing plate 8, and aligned threaded holes are provided on both sides of the frame (the threaded holes on the same side are aligned vertically, and the threaded holes on different sides are aligned horizontally). Each screw 6 passes through the corresponding screw hole and is tightened at the bottom of the fixing plate 8 by the nut 7 (fixing the screw 6 to the fixing plate 8 to prevent the hanging wire from loosening). One end of a hanging wire passes through the upper threaded hole 10 on one side of the frame, the upper threaded hole 11 on the other side of the frame, and the lower threaded hole 11 on the other side of the frame in sequence. After tightening both ends of the hanging wire, it is wound around the screw 6. The screw may be threaded, and both ends of the hanging wire are wound along the thread. The thread can increase the friction force and also lock and limit the hanging wire to prevent movement.

[0022] The upper hanging wire (4) is located at the top, and the lower hanging wire (5) is located at the bottom. The diameter of each wire hole should ideally be large enough to allow the wire to pass through without causing it to shift. Aligning the two upper hanging wire holes on both sides of the frame ensures the upper hanging wire 4 remains horizontal, preventing it from tilting and shifting or crowding the pin protection covers 3 during electroplating, which would affect cleaning. When placing the pin protection covers 3, maintain a spacing of 5-6 mm between adjacent covers; they should not be placed directly against each other. Aligning the two lower hanging wire holes on both sides of the frame ensures the lower hanging wire 5 remains horizontal, guaranteeing that the contact surfaces of each pin protection cover 3 are fully extended.

[0023] In this embodiment, the threading holes and screw holes 9 are arranged alternately to facilitate winding the thread when changing the thread. The hanging brackets 2 are equidistant from each other, and the spacing between two adjacent hanging brackets 2 is preferably 20mm. This facilitates the hanging and removal of the pin protection covers while ensuring that the maximum number of pin protection covers can be hung.

[0024] The size of the frame 1, the number of hanging brackets 2, and the number of screw holes 9 and screws 6 can be set according to the size of the electroplating box; there are no restrictions here.

[0025] Preferably, a positioning hole 12 is provided on each side of the frame 1. When the frame is placed in the electroplating box, the positioning rod or positioning line passes through the two aligned positioning holes 12 to position and install the frame.

[0026] In practical implementation, the hanger 2 can also employ other fixing methods. For example, instead of using the fixing plate 8, screw 6, and nut 7, the two ends of the hanging wires can be tightened and directly intertwined and twisted together, or the two ends of the hanging wires can be braided or knotted to form a rope knot to achieve the purpose of fixing. Alternatively, the fixing plate 8 can be retained, and a long threaded screw can be suspended and fixed below the fixing plate 8. After the two ends of the hanging wires are tightened, they can be wrapped and fixed along the threads of the long screw. The suspension height of the long screw should be such that it is positioned between the upper and lower threaded holes.

[0027] In summary, the electroplating fixture for pin protection covers provided by this utility model uses an upper hanging wire to hang the pin protection cover, while a lower hanging wire slightly opens the two mating surfaces of the pin protection cover, allowing the electroplating solution to flow into the gap between the two mating surfaces to complete the cleaning operation. Furthermore, the way the upper hanging wire suspends the pin protection cover will not cause any scratches or abrasions to the pin protection cover. While ensuring effective cleaning, it can also electroplat multiple pin protection covers, improving the hanging efficiency.

[0028] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electroplating fixture for pin protection covers, characterized in that, It includes a frame and several sets of hangers. Each set of hangers is arranged in parallel and fixed inside the frame. Each set of hangers includes upper and lower hanging wires that are set separately. The arc-shaped inner openings of multiple pin protection covers are hung on the upper hanging wires. The lower hanging wires are locked between the two mating surfaces of the corresponding pin protection cover, thus opening the two mating surfaces.

2. The electroplating fixture for the pin protection cover according to claim 1, characterized in that, The upper and lower hanging wires are stainless steel wires.

3. The electroplating fixture for the pin protection cover according to claim 2, characterized in that, The diameter of the upper and lower hanging wires is 0.2 mm.

4. The electroplating fixture for the pin protection cover according to claim 2, characterized in that, It also includes several screws and nuts that match the screws. A fixing plate is provided on one side of the frame, and several screw holes are spaced apart on the fixing plate. Aligned threaded holes are provided on both sides of the frame. Each screw passes through the corresponding screw hole and is fastened by the nut at the bottom of the fixing plate. One end of a hanging wire passes through the upper threaded hole on one side of the frame, the upper threaded hole on the other side of the frame, the lower threaded hole on the other side of the frame, and the lower threaded hole on one side of the frame in sequence. After the two ends of the hanging wire are pulled tight, they are wrapped around the screw shank.

5. The electroplating fixture for the pin protection cover according to claim 4, characterized in that, The threaded holes and screw holes are arranged alternately.

6. The electroplating fixture for the pin protection cover according to claim 2, characterized in that, It also includes a threaded long screw. A fixing plate is provided on one side of the frame. The long screw is suspended and fixed below the fixing plate. One end of a hanging wire passes through the upper thread hole on one side of the frame, the upper thread hole on the other side of the frame, the lower thread hole on the other side of the frame, and the lower thread hole on one side of the frame in sequence. After the two ends of the hanging wire are tightened, they are wrapped and fixed along the thread of the long screw.

7. The electroplating fixture for the pin protection cover according to claim 4 or 6, characterized in that, A positioning hole is also provided on each side of the frame. When the frame is placed in the electroplating box, the frame is positioned and installed by passing a positioning rod or positioning line through the two aligned positioning holes.

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