Printed circuit board electroplating clamp

Abstract

The utility model provides a printed circuit board electroplating clamp and relates to the technical field of printed circuit board production. The electroplating clamp for the printed circuit board comprises a first clamping arm, two mounting holes are formed in the upper end of the first clamping arm, fixing frames are fixed to the two sides of the first clamping arm, a rotating rod is rotationally connected to the middle of each fixing frame, a second clamping arm is fixed to the middle of each rotating rod, and reset springs are fixed to the close sides of the first clamping arm and the second clamping arm; clamping blocks are arranged at the lower ends of the first clamping arm and the second clamping arm; a sliding groove is formed in the lower side of the second clamping arm, and a connecting structure is arranged on the inner wall of the sliding groove. According to the electroplating clamp for the printed circuit board, the contact frame is pushed by the hand back to move, the effect of convenient opening is achieved, the effect of improving the use convenience of the electroplating clamp is achieved, the lower end of the second clamping arm is driven by the reset spring to be close to the first clamping arm, the stress buffering effect is achieved, and the effect of improving the use protection performance of the electroplating clamp is achieved.

Description

Technical Field

[0001] The utility model relates to a printed circuit board electroplating fixture, belonging to the technical field of printed circuit board production. Background Art

[0002] Printed circuit boards, also known as printed circuit boards, provide electrical connections for electronic components. Their design primarily involves layout design. The primary advantage of using printed circuit boards is that they significantly reduce wiring and assembly errors, improving automation and productivity. During the electroplating process of some printed circuit boards, plating fixtures are used to hold them in place for stable subsequent plating operations.

[0003] While existing electroplating fixtures can perform routine clamping operations on printed circuit boards, in actual use, workers need to apply significant external force to separate the two clamping arms. This operation is cumbersome, requiring the two clamping arms to be manually separated to the appropriate spacing before the printed circuit board can be clamped. The entire operation requires multiple steps, making the electroplating fixture less convenient to use. Furthermore, when clamping the printed circuit board, the two clamping arms directly and rigidly contact the printed circuit board. During the clamping process, the rigid pressure of the clamping arms may cause compression and deformation of delicate circuits or electronic components on the printed circuit board, potentially breaking the circuits or damaging the components, making the electroplating fixture less protective. Utility Model Content

[0004] (1) Technical problems solved

[0005] The utility model provides a printed circuit board electroplating fixture to solve the problems of insufficient convenience and protection of electroplating fixtures in the prior art.

[0006] (2) Technical solution

[0007] The utility model is realized by the following technical solution: a printed circuit board electroplating fixture includes a first clamping arm, two mounting holes are defined at the upper end of the first clamping arm, fixing frames are fixed on both sides of the first clamping arm, a rotating rod is rotatably connected to the middle of the fixing frame, a second clamping arm is fixed in the middle of the rotating rod, a reset spring is fixed on the adjacent sides of the first clamping arm and the second clamping arm, and a clamping block is provided at the lower end of each of the first clamping arm and the second clamping arm;

[0008] A sliding groove is provided on the lower side of the second clamping arm, and a connecting structure is provided on the inner wall of the sliding groove; the connecting structure can rotate the second clamping arm around the central axis of the rotating rod to conveniently clamp the printed circuit board.

[0009] Preferably, the connecting structure includes a sliding rod, the inner sides of both ends of the sliding rod are rotatably connected to connecting frames, the middle parts of the two connecting frames are rotatably connected to positioning rods, the outer sides of both ends of the sliding rod are rotatably connected to driving frames, the other ends of the two driving frames are rotatably connected to driving rods, and contact frames are fixed at both ends of the driving rods.

[0010] Preferably, the middle part of the positioning rod is fixed on one side of the first clamping arm, the two ends of the positioning rod are rotatably connected to the upper ends of the two connecting frames, the lower ends of the two connecting frames are rotatably connected to the two ends of the sliding rod, the outer surface of the sliding rod is slidably connected to the inner wall of the slide groove, and the slide groove runs through one side of the second clamping arm.

[0011] Preferably, the upper ends of the two driving frames are rotatably connected to the two ends of the sliding rods, the lower ends of the two driving frames are rotatably connected to the inner sides of the two ends of the driving rods, the outer surfaces of the driving rods are slidably connected to the outer surface of the second clamping arm, the middle parts of the two contact frames are fixed to the outer sides of the two ends of the driving rods, and the vertical cross-section of each contact frame is elliptical.

[0012] Preferably, a stabilizing groove is formed at the lower end of each of the first clamping arm and the second clamping arm, and a buffer spring is fixed to the inner wall of each of the stabilizing grooves.

[0013] Preferably, the outer surfaces of the two clamping blocks are slidably connected to the inner walls of the two stabilizing grooves, the cross-section of each clamping block is T-shaped, the proximal ends of the two buffer springs are fixed on the separated sides of the two clamping blocks, and the separated ends of the two buffer springs are fixed on the inner walls of the separated sides of the two stabilizing grooves.

[0014] Preferably, the first clamp arm and the second clamp arm are clearance-matched, the second clamp arm is V-shaped in vertical section, one end of the reset spring is fixed to one side of the first clamp arm, and the other end of the reset spring is fixed to the upper end of the second clamp arm.

[0015] The utility model provides a printed circuit board electroplating fixture, which has the following beneficial effects:

[0016] (1) The electroplating fixture for printed circuit boards is moved by pushing the contact frame with the back of the hand, so that the contact frame, the driving rod, the driving frame, the slide groove, the sliding rod, the connecting frame, the positioning rod, the reset spring, the second clamping arm, the rotating rod, the fixed frame, and the first clamping arm cooperate with each other to achieve the effect of convenient opening. In this way, the electroplating fixture can be opened only during the process of placing the printed circuit board, and there is no need to perform the clamp opening operation separately, which brings convenience to the staff and thus achieves the effect of improving the convenience of using the electroplating fixture.

[0017] (2) The printed circuit board electroplating fixture drives the lower end of the second clamping arm close to the first clamping arm through the reset spring, so that the clamping block, the stabilizing groove and the buffer spring work together to achieve the effect of force buffering, thereby avoiding the rigid pressure of the clamping arm from causing damage to the printed circuit board, thereby achieving the effect of improving the protectiveness of the electroplating fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a side sectional view of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of the structure of part A;

[0021] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0022]

Main component symbol description

[0023] 1. First clamping arm; 2. Fixed frame; 3. Mounting hole; 4. Rotating rod; 5. Second clamping arm; 6. Return spring; 7. Positioning rod; 8. Connecting frame; 9. Sliding rod; 10. Slide groove; 11. Driving frame; 12. Driving rod; 13. Contact frame; 14. Stabilizing groove; 15. Clamping block; 16. Buffer spring. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Example 1

[0026] An embodiment of the utility model provides a printed circuit board electroplating fixture.

[0027] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4, including a first clamping arm 1, the first clamping arm 1 and the second clamping arm 5 cooperate with each other, and the printed circuit board is clamped by the clamping block 15. Two mounting holes 3 are provided at the upper end of the first clamping arm 1, and the mounting holes 3 are used to be installed on the production machinery. A fixing frame 2 is fixed on both sides of the first clamping arm 1, and a rotating rod 4 is rotatably connected to the middle of the fixing frame 2. The second clamping arm 5 is fixed in the middle of the rotating rod 4. A reset spring 6 is fixed on the near side of the first clamping arm 1 and the second clamping arm 5. A clamping block 15 is provided at the lower end of the first clamping arm 1 and the second clamping arm 5; a slide groove 10 is provided on the lower side of the second clamping arm 5, and a connecting structure is provided on the inner wall of the slide groove 10; the connecting structure includes a sliding rod 9, and the inner sides of both ends of the sliding rod 9 are rotatably connected to the connecting frame 8, the middle of the two connecting frames 8 are rotatably connected to the positioning rod 7, the outer sides of both ends of the sliding rod 9 are rotatably connected to the driving frame 11, and the other ends of the two driving frames 11 are rotatably connected to the driving rod 12, and the contact frames 13 are fixed at both ends of the driving rod 12.

[0028] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It is worth mentioning that the middle part of the positioning rod 7 is fixed on one side of the first clamping arm 1, and the two ends of the positioning rod 7 are rotatably connected to the upper ends of the two connecting frames 8. The lower ends of the two connecting frames 8 are rotatably connected to the two ends of the sliding rod 9. The outer surface of the sliding rod 9 is slidably connected to the inner wall of the slide groove 10. The slide groove 10 runs through one side of the second clamping arm 5. The upper ends of the two driving frames 11 are rotatably connected to the two ends of the two sliding rods 9, and the lower ends of the two driving frames 11 are rotatably connected to the inner sides of the two ends of the driving rod 12. The outer surface of the driving rod 12 is slidably connected to the outer surface of the second clamping arm 5. The middle parts of the two contact frames 13 are fixed to the outer sides of the two ends of the driving rod 12, and the vertical cross-section of each contact frame 13 is elliptical.

[0029] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It is worth mentioning that the first clamping arm 1 and the second clamping arm 5 are clearance-matched, the vertical section of the second clamping arm 5 is V-shaped, one end of the return spring 6 is fixed on one side of the first clamping arm 1, and the other end of the return spring 6 is fixed on the upper end of the second clamping arm 5.

[0030] To use the present invention, a worker first picks up the printed circuit board (PCB) with their palm facing downward, then uses the back of their hand to push the contact frame 13 to move it. The contact frame 13 drives the drive rod 12, which is fixed to it. Supported and stabilized by the second clamping arm 5, the drive rod 12, via the connected drive frame 11, causes the sliding rod 9 to move upward along the inner wall of the slide slot 10. The upwardly moving sliding rod 9, connected by the connecting frame 8 and guided by the positioning rod 7, exerts a compressive force on the second clamping arm 5. With the rotational connection of the rotating rod 4 and the fixed support of the fixing frame 2, the upper end of the second clamping arm 5 approaches the first clamping arm 1. This compresses the return spring 6 connected to it, creating a compressed space for the second clamping arm 5, thereby moving the lower end of the second clamping arm 5 away from the first clamping arm 1. The PCB can now be placed between the two clamping blocks 15. Finally, when the back of the hand is removed from the contact frame 13, the elastic force of the return spring 6 drives the second clamping arm 5 through the clamping blocks 15 to clamp the PCB. The effect of convenient opening is achieved, so that the electroplating fixture can be opened only during the process of placing the printed circuit board, without the need to perform the fixture opening operation separately, which brings convenience to the staff and thus achieves the effect of improving the convenience of using the electroplating fixture.

[0031] Example 2

[0032] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , based on the first embodiment, a force buffering function is added;

[0033] Please refer again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It is worth mentioning that a stabilizing groove 14 is provided at the lower end of the first clamping arm 1 and the second clamping arm 5, and a buffer spring 16 is fixed to the inner wall of each stabilizing groove 14. The outer surfaces of the two clamping blocks 15 are slidably connected to the inner walls of the two stabilizing grooves 14. The cross-section of each clamping block 15 is T-shaped. The proximal ends of the two buffer springs 16 are fixed to the separated sides of the two clamping blocks 15, and the separated ends of the two buffer springs 16 are fixed to the inner walls of the separated sides of the two stabilizing grooves 14.

[0034] When the present invention is in use, the return spring 6 drives the lower end of the second clamping arm 5 toward the first clamping arm 1, causing the clamping blocks 15 at the lower ends of the first clamping arm 1 and the second clamping arm 5 to approach each other. The two clamping blocks 15 approaching each other clamp the placed printed circuit board. Subsequently, at the moment of clamping, the printed circuit board generates a reverse force on the two clamping blocks 15, causing the two clamping blocks 15 to move away from each other. The two clamping blocks 15 moving away from each other, supported by the two stabilizing grooves 14, compress the buffer springs 16 fixed to their separated ends, causing the buffer springs 16 to generate elastic force, thereby buffering the instantaneous clamping impact force of the first clamping arm 1 and the second clamping arm 5. This achieves a force buffering effect, prevents the rigid pressure of the clamping arms from damaging the printed circuit board, and thereby improves the protectiveness of the electroplating fixture.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A printed circuit board electroplating fixture, comprising a first clamping arm (1), characterized in that: Two mounting holes (3) are provided at the upper end of the first clamping arm (1); fixing frames (2) are fixed on both sides of the first clamping arm (1); a rotating rod (4) is rotatably connected to the middle of the fixing frame (2); a second clamping arm (5) is fixed to the middle of the rotating rod (4); a return spring (6) is fixed on the adjacent sides of the first clamping arm (1) and the second clamping arm (5); and a clamping block (15) is provided at the lower end of each of the first clamping arm (1) and the second clamping arm (5); A sliding groove (10) is provided on the lower side of the second clamping arm (5), and a connecting structure is provided on the inner wall of the sliding groove (10); the connecting structure can rotate the second clamping arm (5) around the central axis of the rotating rod (4) to conveniently clamp the printed circuit board.

2. The printed circuit board electroplating fixture according to claim 1, characterized in that: The connecting structure comprises a sliding rod (9), the inner sides of both ends of the sliding rod (9) are rotatably connected to connecting frames (8), the middle parts of the two connecting frames (8) are rotatably connected to positioning rods (7), the outer sides of both ends of the sliding rod (9) are rotatably connected to driving frames (11), the other ends of the two driving frames (11) are rotatably connected to driving rods (12), and contact frames (13) are fixed to both ends of the driving rods (12).

3. The printed circuit board electroplating fixture according to claim 2, characterized in that: The middle part of the positioning rod (7) is fixed on one side of the first clamping arm (1), the two ends of the positioning rod (7) are rotatably connected to the upper ends of the two connecting frames (8), the lower ends of the two connecting frames (8) are rotatably connected to the two ends of the sliding rod (9), the outer surface of the sliding rod (9) is slidably connected to the inner wall of the sliding groove (10), and the sliding groove (10) runs through one side of the second clamping arm (5).

4. The printed circuit board electroplating fixture according to claim 2, wherein: The upper ends of the two driving frames (11) are rotatably connected to the two ends of the two sliding rods (9), the lower ends of the two driving frames (11) are rotatably connected to the inner sides of the two ends of the driving rod (12), the outer surface of the driving rod (12) is slidably connected to the outer surface of the second clamping arm (5), the middle parts of the two contact frames (13) are fixed to the outer sides of the two ends of the driving rod (12), and the vertical section of each contact frame (13) is elliptical.

5. The printed circuit board electroplating fixture according to claim 1, characterized in that: The lower ends of the first clamping arm (1) and the second clamping arm (5) are both provided with a stabilizing groove (14), and a buffer spring (16) is fixed to the inner wall of each stabilizing groove (14).

6. The printed circuit board electroplating fixture according to claim 5, characterized in that: The outer surfaces of the two clamping blocks (15) are slidably connected to the inner walls of the two stable grooves (14), and the cross-section of each clamping block (15) is T-shaped. The proximal ends of the two buffer springs (16) are fixed to the separated sides of the two clamping blocks (15), and the separated ends of the two buffer springs (16) are fixed to the inner walls of the separated sides of the two stable grooves (14).

7. The printed circuit board electroplating fixture according to claim 1, characterized in that: The first clamping arm (1) and the second clamping arm (5) are fitted with a clearance, the vertical section of the second clamping arm (5) is arranged in a V shape, one end of the return spring (6) is fixed to one side of the first clamping arm (1), and the other end of the return spring (6) is fixed to the upper end of the second clamping arm (5).

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