Golden finger electroplating structure of flexible circuit board

Abstract

The utility model relates to the technical field of circuit board electroplating, and discloses a flexible circuit board golden finger electroplating structure which comprises an electroplating pool, two symmetrical square tubes are fixedly connected to the two sides of the electroplating pool, a frame is slidably connected into the square tubes, two symmetrical sliding rails are fixedly connected to the inner wall of the top of the frame, and the sliding rails are fixedly connected to the inner wall of the top of the frame. Sliding plates are slidably connected into the two sliding rails, two symmetrical connecting rods are fixedly connected to the lower surfaces of the two sliding plates, a frame body is fixedly connected to the bottom ends of the multiple connecting rods, and two symmetrical first fixing plates are fixedly connected to the middle position of the upper surface of the frame body; limiting rods are slidably connected to the two first fixing plates in a penetrating mode. According to the utility model, the two groups of second clamping plates are arranged, so that when the bottom of the circuit board is subjected to gold plating operation, the two circuit boards can be subjected to gold plating operation at a time, and the working efficiency of electroplating the circuit board is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board electroplating technology, and more specifically to the electroplating structure of gold fingers on flexible circuit boards. Background Technology

[0002] Flexible printed circuit boards (FPCBs) are circuit boards made of polyimide or polyester film. They are lightweight, flexible, and resistant to high and low temperatures. They are widely used in consumer electronics, automotive electronics, medical equipment, and aerospace. Gold fingers are gold-plated pillars seen on the edges of the circuit board connections. The purpose of gold fingers is to connect auxiliary circuit boards to the motherboard of a computer. Circuit board gold fingers are also used in various other devices that communicate via digital signals.

[0003] A search revealed a Chinese patent with publication number CN220952150U, which discloses a high-efficiency gold finger electroplating machine. The device uses the elastic force of a compression spring to drive a telescopic rod to stretch. When the telescopic rod stretches, it causes a fixing plate to come into contact with the memory module. Finally, the memory module can be clamped and fixed by the cooperation of the two fixing plates. However, during the subsequent movement of the workpiece, the workpiece is prone to shaking and deflection, which affects the accuracy of electroplating. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a flexible circuit board gold finger electroplating structure to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a flexible circuit board gold finger electroplating structure, including an electroplating tank, two symmetrical square tubes fixedly connected to both sides of the electroplating tank, a frame slidably connected inside the square tubes, two symmetrical slide rails fixedly connected to the top inner wall of the frame, a slide plate slidably connected inside the two slide rails, two symmetrical connecting rods fixedly connected to the lower surface of the two slide plates, a frame fixedly connected to the bottom end of the multiple connecting rods, two symmetrical fixing plates I fixedly connected to the middle position of the upper surface of the frame, a limit rod slidably connected through the two fixing plates I, a connecting plate fixedly connected to one end of the limit rod, a horizontal plate fixedly connected to the bottom end of the two connecting plates, multiple clamping plates II with equal spacing fixedly connected to the opposite sides of the two horizontal plates, and a drive assembly for pulling the two limit rods to make relative or opposite movements on the upper surface of the frame.

[0006] As a further embodiment of this utility model, the driving assembly includes a cylinder fixedly connected to the upper surface of the frame and located in the middle of two fixed plates. An end block is fixedly connected to the output end of the cylinder, and rotating rods are rotatably connected to both sides of the end block. The other ends of the two rotating rods are rotatably connected to one end of two limiting rods, respectively.

[0007] As a further embodiment of this utility model, two symmetrical square rods are fixedly connected to both ends of the upper surface of the frame, and sliding rods are fixedly connected to the opposite sides of the top of the two square rods. Fixed plates are fixedly connected to both ends of the upper surface of the horizontal plate, and the sliding rods pass through the fixed plates and are slidably connected to them.

[0008] As a further embodiment of this utility model, the frame is provided with two sets of L-shaped plates that are mirror images of each other, and each set consists of two symmetrical plates. One end of the top inner wall of each of the L-shaped plates is fixedly connected to a pressure plate, and the lower surface of the pressure plate is in contact with the circuit board.

[0009] As a further embodiment of this utility model, both sides of the frame are fixedly connected to clamps that cooperate with multiple clamps.

[0010] As a further embodiment of this utility model, a spring is fixedly connected to one side of the second clamping plate, and a square plate is fixedly connected to the other end of the spring. Rubber pads are glued to the opposite sides of the square plate and the first clamping plate.

[0011] As a further embodiment of this utility model, a fixing block is fixedly connected to one side of the electroplating tank, and an electric push rod is fixedly connected to the upper surface of the fixing block, with the other end of the electric push rod fixed to one side of the frame.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model, through the coordinated use of a cylinder, clamping plate one, and clamping plate two, can stably fix the circuit board and clamp the circuit board at multiple points, thereby improving the stability of clamping and preventing the circuit board from tilting during the electroplating process, which would affect the electroplating effect.

[0014] 2. By incorporating an L-shaped plate and a pressure plate, this utility model can limit the top of the circuit board during installation, ensuring that the top remains flush and thus guaranteeing that the circuit board is packaged horizontally, preventing tilting during fixing and avoiding deviations in the electroplating process.

[0015] 3. This utility model, by incorporating a spring and a square plate, can pre-clamp the circuit board before it is tightly fixed, making it convenient for staff to adjust the circuit board and effectively improving the accuracy of fixing the circuit board. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a partially enlarged structural schematic diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the top structure of the frame of this utility model.

[0019] Figure 4 This utility model Figure 3 A partial cross-sectional structural diagram.

[0020] The attached diagram is labeled as follows: 1. Electroplating tank; 2. Square tube; 3. Frame; 4. Slide rail; 5. Slide plate; 6. Connecting rod; 7. Frame body; 8. Fixing plate one; 9. Limiting rod; 10. Connecting plate; 11. Clamping plate one; 12. Clamping plate two; 13. Horizontal plate; 14. Cylinder; 15. End block; 16. Rotating rod; 17. L-shaped plate; 18. Pressure plate; 19. Fixing plate two; 20. Square rod; 21. Slide rod; 22. Spring; 23. Square plate; 24. Fixing block; 25. Electric push rod. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4This utility model provides a flexible circuit board gold finger electroplating structure, including an electroplating tank 1. Two symmetrical square tubes 2 are bolted to both sides of the electroplating tank 1. A frame 3 is slidably connected inside the square tubes 2. Two symmetrical slide rails 4 are bolted to the top inner wall of the frame 3. Slide plates 5 are slidably connected inside each slide rail 4. Two symmetrical connecting rods 6 are bolted to the lower surface of each slide plate 5. A frame 7 is bolted to the bottom end of each connecting rod 6. Two symmetrical connecting rods 6 are bolted to the middle of the upper surface of the frame 7. Fixed plate 1 8, with sliding limit rods 9 passing through both fixed plates 1 8. One end of the limit rod 9 is fixed to a connecting plate 10 by bolts. The bottom ends of both connecting plates 10 are fixed to a horizontal plate 13 by bolts. On the opposite sides of the two horizontal plates 13, multiple equally spaced clamping plates 12 are fixed to each other by bolts. In use, first move the slide plate 5 along the slide rail 4. As the slide plate 5 moves, it drives the frame 7 at its bottom to move. When the frame 7 moves to one side of the electroplating tank 1, place the two circuit boards simultaneously on clamping plates 1 11 and clamping plates 12. Between them, and at the same time, its top contacts the lower surface of the pressure plate 18. Through the two sets of clamping plates 12, two circuit boards can be plated at once when performing gold plating on the bottom of the circuit board, which effectively increases the work efficiency of electroplating the circuit board. The upper surface of the frame 7 is provided with a drive assembly that pulls two limit rods 9 to make relative or opposite movements. The drive assembly includes a cylinder 14 that is fixedly connected to the upper surface of the frame 7 by bolts and located in the middle of the two fixed plates 8. The output end of the cylinder 14 is fixedly connected to an end block 15 by bolts. Both sides of the end block 15 are Rotary rods 16 are rotatably connected, and the other ends of the two rotating rods 16 are rotatably connected to one end of the two limiting rods 9 respectively. After placement, the cylinder 14 is activated to extend. While the cylinder 14 extends, it pulls the limiting rods 9 to move through the rotating rods 16. When the two limiting rods 9 move, the connecting plate 10 drives the two horizontal plates 13 to move closer to each other, thereby moving the square plate 23. When the square plate 23 contacts the circuit board, the circuit board can be pre-clamped. At this time, the spring 22 is compressed by force. As the cylinder 14 continues to extend, the spring 22 continues to contract, thus stably clamping the circuit board.

[0023] In this invention, the inner wall of the slide rail 4 is provided with a polyurethane damping strip with a Shore hardness of 70A-90A and a dynamic friction coefficient of 0.4-0.6 on the contact surface with the slide plate 5.

[0024] In this utility model, two symmetrical square rods 20 are fixedly connected to both ends of the upper surface of the frame 7 by bolts. Sliding rods 21 are fixedly connected to the opposite sides of the top of the two square rods 20 by bolts. Fixing plates 29 are fixedly connected to both ends of the upper surface of the horizontal plate 13 by bolts, and the sliding rods 21 pass through the fixing plates 29 and are slidably connected to them.

[0025] In this utility model, the frame 7 is provided with two sets of L-shaped plates 17 that are mirror images of each other, and each set consists of two symmetrical plates. One end of the top inner wall of each of the multiple L-shaped plates 17 is fixedly connected to a pressure plate 18 by bolts, and the lower surface of the pressure plate 18 is in contact with the circuit board. By providing L-shaped plates 17 and pressure plates 18, the top of the circuit board can be limited during installation to keep it flush, thereby ensuring that the circuit board is packed horizontally and avoiding tilting during fixing, which could cause deviations in the electroplating process.

[0026] In this invention, a fixing block 24 is fixedly connected to one side of the electroplating tank 1 by bolts. An electric push rod 25 is fixedly connected to the upper surface of the fixing block 24 by bolts, and the other end of the electric push rod 25 is fixed to one side of the frame 3. After the circuit board is stably clamped, the electric push rod 25 is activated to retract. While the electric push rod 25 is retracting, it drives the frame 3 to move downward, thereby causing the circuit board to move downward. When the bottom of the circuit board is submerged in the liquid in the electroplating tank 1, electroplating can be performed on it.

[0027] In this utility model, both sides of the frame 7 are fixedly connected with clamping plates 11 that cooperate with multiple clamping plates 22 by bolts. A spring 22 is welded to one side of the clamping plate 22, and a square plate 23 is welded to the other end of the spring 22. Rubber pads are glued to the opposite side of the square plate 23 and the clamping plate 11. By providing spring 22 and square plate 23, the circuit board can be pre-clamped before being tightly fixed, which makes it convenient for the staff to adjust the circuit board and effectively improves the accuracy of fixing the circuit board.

[0028] The use of this utility model involves the following steps:

[0029] S1: When in use, first move the slide plate 5 so that it moves along the slide rail 4. While the slide plate 5 moves, it drives the frame 7 at its bottom to move. When the frame 7 moves to the side of the electroplating tank 1, place the two circuit boards between the clamping plate 11 and the clamping plate 2 12 at the same time, and its top contacts the lower surface of the pressure plate 18.

[0030] S2: After placement, the cylinder 14 is activated to extend. While the cylinder 14 extends, the limit rod 9 is moved by the rotating rod 16. When the two limit rods 9 move, the two horizontal plates 13 are brought closer to each other by the connecting plate 10, thereby moving the square plate 23. When the square plate 23 contacts the circuit board, the circuit board can be pre-clamped. At this time, the spring 22 is compressed by force. As the cylinder 14 continues to extend, the spring 22 continues to contract, thus stably clamping the circuit board.

[0031] S3: After the circuit board is stably clamped, the electric push rod 25 is activated to retract. As the electric push rod 25 retracts, it drives the frame 3 to move downward, thereby causing the circuit board to move downward. Once the bottom of the circuit board is submerged in the liquid in the electroplating tank 1, electroplating can be performed on it.

[0032] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0034] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A flexible circuit board gold finger electroplating structure, comprising an electroplating bath (1), characterized in that: Two symmetrical square tubes (2) are fixedly connected to both sides of the electroplating tank (1). A frame (3) is slidably connected inside the square tubes (2). Two symmetrical slide rails (4) are fixedly connected to the top inner wall of the frame (3). A slide plate (5) is slidably connected inside each of the two slide rails (4). Two symmetrical connecting rods (6) are fixedly connected to the lower surface of each of the two slide plates (5). A frame (7) is fixedly connected to the bottom end of the connecting rods (6). The middle position of the upper surface of the frame (7) is fixedly... The frame (7) is connected by two symmetrical fixed plates (8), and each fixed plate (8) is slidably connected by a limit rod (9). One end of the limit rod (9) is fixedly connected to a connecting plate (10), and the bottom ends of the two connecting plates (10) are fixedly connected to a horizontal plate (13). On the opposite sides of the two horizontal plates (13), a plurality of equally spaced clamping plates (12) are fixedly connected. The upper surface of the frame (7) is provided with a drive assembly that pulls the two limit rods (9) to make relative or opposite movements.

2. The flexible circuit board gold finger electroplating structure according to claim 1, characterized in that: The drive assembly includes a cylinder (14) fixedly connected to the upper surface of the frame (7) and located in the middle of two fixed plates (8). The output end of the cylinder (14) is fixedly connected to an end block (15). Rotating rods (16) are rotatably connected to both sides of the end block (15), and the other ends of the two rotating rods (16) are rotatably connected to one end of two limiting rods (9).

3. The flexible circuit board gold finger electroplating structure according to claim 2, characterized in that: Two symmetrical square rods (20) are fixedly connected to both ends of the upper surface of the frame (7). Sliding rods (21) are fixedly connected to the opposite sides of the top of the two square rods (20). Fixed plates (19) are fixedly connected to both ends of the upper surface of the horizontal plate (13), and the sliding rods (21) pass through the fixed plates (19) and are slidably connected to them.

4. The flexible circuit board gold finger electroplating structure according to claim 3, characterized in that: The frame (7) is provided with two sets of L-shaped plates (17) that are mirror images of each other, and each set consists of two symmetrical plates. One end of the top inner wall of each of the L-shaped plates (17) is fixedly connected to a pressure plate (18), and the lower surface of the pressure plate (18) is in contact with the circuit board.

5. The flexible circuit board gold finger electroplating structure according to claim 4, characterized in that: Both sides of the frame (7) are fixedly connected to clamps (11) that work in conjunction with multiple clamps (2) 6. The flexible circuit board gold finger electroplating structure according to claim 1, characterized in that: A spring (22) is fixedly connected to one side of the clamping plate (12), and a square plate (23) is fixedly connected to the other end of the spring (22). Rubber pads are glued to the opposite sides of the square plate (23) and the clamping plate (11).

7. The flexible circuit board gold finger electroplating structure according to claim 1, characterized in that: A fixing block (24) is fixedly connected to one side of the electroplating tank (1), and an electric push rod (25) is fixedly connected to the upper surface of the fixing block (24), and the other end of the electric push rod (25) is fixed to one side of the frame (3).

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