Printed Circuit Board Electroplating Fixture

Abstract

This utility model proposes a printed circuit board electroplating fixture, belonging to the field of circuit board processing technology. The printed circuit board electroplating fixture includes a circuit board, and four sets of fixed base plates are provided on the outer wall of the circuit board. A limiting device is fixedly connected to the front of each fixed base plate, and the back of the limiting device is in contact with the circuit board. Two sets of fixed base plates are internally threaded with adjustment mechanisms. This utility model features the ability to adjust the distance between the adjusting threaded rod fixedly connected to the back of a knob by rotating a second knob, thereby adjusting the extension length of the fixed clamping block at the top of the fixed base plate. This adapts to circuit boards with different edge widths, precisely adjusting the clamping width. The adjustable clamping width fixture can accurately position the clamping area in the non-functional area of ​​the circuit board, reducing material waste caused by an excessively large clamping area.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to electroplating fixtures for printed circuit boards. Background Technology

[0002] Circuit boards are exposed to various environments during use and are susceptible to oxidation and corrosion. They gradually oxidize in the air, forming a copper oxide layer that affects their conductivity. By electroplating a layer of anti-oxidation and corrosion-resistant metal, conductive materials such as copper can be effectively protected, preventing copper from contacting the external environment and thus extending the lifespan of the PCB.

[0003] Existing circuit board electroplating fixtures cannot adjust the clamping edge distance. When processing small circuit boards, the fixed clamping area of ​​the fixture often exceeds the edge of the small circuit board, resulting in an excessively large clamping area. This not only hinders the full contact between the electroplating solution and the edge of the circuit board, but also causes uneven current density distribution, which in turn affects the uniformity of the electroplating layer and may even lead to problems such as missed plating or excessively thick plating layers.

[0004] Therefore, this utility model proposes a printed circuit board electroplating fixture. Utility Model Content

[0005] The purpose of this invention is to provide a printed circuit board electroplating fixture to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A printed circuit board electroplating fixture includes a circuit board. The outer wall of the circuit board is provided with four sets of fixed base plates. The front of the fixed base plates is fixedly connected to a limiting device, and the back of the limiting device is attached to the circuit board. Two of the fixed base plates are internally threaded with adjustment mechanisms.

[0008] Furthermore, the limiting device includes a limiting plate, a connecting sleeve rod is movably sleeved inside the limiting plate, a second hinge block is fixedly connected to the back of the connecting sleeve rod, one end of a transmission rod is hinged to the outer wall of the second hinge block, a transmission block is hinged to the other end of the transmission rod, a first hinge block is hinged to the outer wall of the transmission block, the bottom end of the first hinge block is fixedly connected to a fixed base plate, and a handle is fixedly connected to the top end of the transmission block.

[0009] Furthermore, the limiting plate has two sets of limiting holes inside, and the inner wall of the limiting hole is movably fitted with a limiting sleeve rod, the side of the limiting sleeve rod being fixedly connected to the fixing clamp block.

[0010] Furthermore, the transmission block is triangular, and the included angle between the two extended ends of the transmission block is between 45 degrees and 75 degrees.

[0011] Furthermore, a slot is provided on the side of the fixed base plate, the surface of the slot is in contact with the circuit board, and a fixing clip is attached to the front of the circuit board.

[0012] Furthermore, the fixed clamp has a circular hole inside, and a second knob is movably fitted inside the circular hole. The second knob is hexagonal, and the diameter of the circular hole is slightly larger than the diameter of the second knob. An adjusting threaded rod is fixedly connected to the back of the second knob, and the outer wall of the adjusting threaded rod is threadedly connected to the connecting sleeve rod.

[0013] Furthermore, a limiting collar is fixedly connected to the outer wall of the adjusting threaded rod, and the outer wall of the limiting collar is movably sleeved with the fixed clamping block.

[0014] Furthermore, the adjustment mechanism includes a bidirectional threaded rod, the outer wall of which is threaded with two sets of fixed base plates. Extension blocks are movably sleeved on the outer walls of both the upper and lower ends of the bidirectional threaded rod. A knob is fixedly connected to the top end of the bidirectional threaded rod. The outer wall of the knob fits against one set of extension blocks. A connecting rod is fixedly connected to the back of the extension block. A connecting sleeve block is fixedly connected to the top end of the connecting rod. A connecting crossbar is movably sleeved inside the two sets of connecting sleeve blocks. A connecting column is fixedly connected to both ends of the connecting crossbar.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. By rotating knob two, the adjusting threaded rod fixedly connected to the back of knob two rotates inside the connecting sleeve rod, adjusting the adjustment distance between them, thereby adjusting the extension length of the fixed clamping block at the top of the fixed base plate to adapt to circuit boards with different edge widths. By precisely adjusting the clamping width, it can be ensured that the circuit board is firmly fixed on the fixture during the electroplating process, avoiding uneven electroplating or damage to the circuit board due to unstable clamping. The adjustable clamping width fixture can accurately position the clamping area in the non-functional area of ​​the circuit board, reducing material waste caused by excessively large clamping areas.

[0017] 2. By sliding two sets of connecting sleeves on the outer wall of the connecting crossbar, and rotating the knob to adjust the distance between the two sets of fixed base plates, the fixture can quickly adapt to circuit boards of different sizes without complicated operating procedures. Whether it is a large circuit board or a small circuit board, the clamping position can be adjusted in a short time, which greatly improves production efficiency. The fixture has strong adaptability and can meet diverse production needs, reducing the additional costs and time consumption caused by changing fixtures. Attached Figure Description

[0018] Figure 1 This is an external view of the printed circuit board electroplating fixture of this utility model;

[0019] Figure 2 This is a partial structural diagram of the printed circuit board electroplating fixture of this utility model;

[0020] Figure 3 This is a front view of the limiting device of the printed circuit board electroplating fixture of this utility model;

[0021] Figure 4 This is a side view of the limiting device of the printed circuit board electroplating fixture of this utility model;

[0022] Figure 5 This is a cross-sectional view of the limiting device of the printed circuit board electroplating fixture of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Circuit board; 2. Connecting column; 3. Connecting crossbar; 4. Connecting sleeve block; 5. Fixed base plate; 6. Connecting column; 7. Knob one; 8. Two-way threaded rod; 9. Extension block; 10. Fixed clamping block; 11. Limiting sleeve rod; 12. Limiting plate; 13. Handle; 14. Transmission block; 15. Hinge block one; 16. Transmission rod; 17. Adjusting threaded rod; 18. Connecting sleeve rod; 19. Hinge block two; 20. Knob two; 21. Limiting collar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1 to 5 As shown, the printed circuit board electroplating fixture provided by this utility model includes a circuit board 1. The outer wall of the circuit board 1 is provided with four sets of fixed base plates 5. The front of the fixed base plate 5 is fixedly connected to a limiting device, and the back of the limiting device is attached to the circuit board 1. The internal threads of two sets of fixed base plates 5 are connected to an adjustment mechanism.

[0028] The limiting device includes a limiting plate 12, a connecting sleeve rod 18 is movably sleeved inside the limiting plate 12, a second hinge block 19 is fixedly connected to the back of the connecting sleeve rod 18, one end of a transmission rod 16 is hinged to the outer wall of the second hinge block 19, a transmission block 14 is hinged to the other end of the transmission rod 16, a first hinge block 15 is hinged to the outer wall of the transmission block 14, the bottom end of the first hinge block 15 is fixedly connected to the fixed base plate 5, and a handle 13 is fixedly connected to the top end of the transmission block 14.

[0029] The limiting plate 12 has two sets of limiting holes inside. The inner wall of the limiting hole is movably sleeved with a limiting sleeve rod 11, and the side of the limiting sleeve rod 11 is fixedly connected to the fixing clamp 10.

[0030] The transmission block 14 is triangular, and the included angle between the two extended ends of the transmission block 14 is between 45 degrees and 75 degrees.

[0031] The side of the fixed base plate 5 is provided with a slot, the surface of which is in contact with the circuit board 1, and the front of the circuit board 1 is in contact with a fixing clip 10.

[0032] When clamping the circuit board, pushing the handle 13 causes the connection point between the transmission block 14 at its bottom and the hinge block 15 to rotate. This rotation drives the transmission rod 16, which pushes the connecting sleeve rod 18 to slide to one side inside the limiting plate 12 via the hinge block 19. At the same time, the adjusting threaded rod 17 further drives the fixing clamp 10 to move outward until the fixing clamp 10 reaches the top of the circuit board 1. The fixing clamp 10 and the fixing base plate 5 work together to limit and clamp the circuit board 1 on both sides, achieving a simple, fast, and effective fixing and limiting function. The mechanical linkage not only improves the convenience of the clamping operation but also ensures the stability and reliability of the clamping process. The circuit board can be firmly fixed on the fixture during the electroplating process, avoiding problems such as uneven electroplating or circuit board damage caused by unstable clamping. Moreover, the adjustable clamping mechanism can adapt to circuit boards of different sizes and shapes, enhancing the versatility and flexibility of the fixture and meeting diverse production needs.

[0033] The fixed clamp 10 has a round hole inside, and a knob 20 is movably fitted inside the round hole. The knob 20 is hexagonal, and the diameter of the round hole is slightly larger than the diameter of the knob 20. An adjusting threaded rod 17 is fixedly connected to the back of the knob 20, and the outer wall of the adjusting threaded rod 17 is threadedly connected to the connecting sleeve rod 18.

[0034] The outer wall of the adjusting threaded rod 17 is fixedly connected to a limiting collar 21, and the outer wall of the limiting collar 21 is movably sleeved with the fixed clamping block 10.

[0035] When encountering circuit boards with small edge dimensions, a tool such as an Allen wrench can be fitted onto the surface of knob 20. By rotating knob 20, the adjusting threaded rod 17 on the side rotates inside the connecting sleeve 18. The rotation process changes the length of the engagement between the adjusting threaded rod 17 and the connecting sleeve 18, thereby adjusting the distance between the fixing clamp 10 and the connecting sleeve 18. In this way, the extension length of the fixing clamp 10 at the top of the fixing base plate 5 can be precisely adjusted to adapt to circuit boards with different edge widths, ensuring the stability and accuracy of clamping. The adjustability not only improves the versatility and flexibility of the clamp, but also effectively avoids material waste caused by excessive clamping area, while ensuring the fixing effect of the circuit board during electroplating and avoiding the negative impact on electroplating quality that may be caused by unstable clamping.

[0036] Example 2

[0037] Based on Example 1, please refer to Figures 1 to 5 As shown, the adjustment mechanism includes a bidirectional threaded rod 8. Two sets of fixed base plates 5 are threadedly connected to the outer wall of the bidirectional threaded rod 8. Extension blocks 9 are movably sleeved on the outer walls of both the upper and lower ends of the bidirectional threaded rod 8. A knob 7 is fixedly connected to the top of the bidirectional threaded rod 8. The outer wall of the knob 7 is in contact with one of the sets of extension blocks 9. A connecting rod 6 is fixedly connected to the back of the extension block 9. A connecting sleeve block 4 is fixedly connected to the top of the connecting rod 6. A connecting crossbar 3 is movably sleeved inside the two sets of connecting sleeve blocks 4. A connecting column 2 is fixedly connected to both ends of the connecting crossbar 3.

[0038] When handling circuit boards of various sizes, the operator can rotate knob 7 to drive the bidirectional threaded rod 8 to rotate precisely between the two sets of extension blocks 9. As the bidirectional threaded rod 8 continues to rotate, the two sets of fixed base plates 5 will move synchronously on their surfaces, allowing for precise adjustment of the spacing between them. This enables the equipment to adapt to circuit boards of different widths, ensuring that the circuit boards remain stable during the electroplating process. In this way, electroplating quality problems caused by improper clamping can be effectively avoided, thereby improving the overall quality and efficiency of the electroplating operation.

[0039] Meanwhile, by pulling the two sets of connecting sleeves 4, allowing them to slide smoothly on the surface of the connecting crossbar 3, the distance between the two sets of connecting sleeves 4 can be further adjusted to match circuit boards of different widths. The bidirectional adjustable structure design not only supports horizontal clamping of circuit boards but also vertical clamping, enriching the clamping methods. Whether it is a rectangular, square, or other irregularly shaped circuit board, a suitable clamping solution can be found through this flexible fixture design, ensuring the smooth progress of the electroplating process and improving production efficiency and product quality.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printed circuit board electroplating fixture, characterized in that, The circuit board (1) is provided with four sets of fixed base plates (5) on its outer wall. The front of the fixed base plate (5) is fixedly connected to a limiting device, and the back of the limiting device is attached to the circuit board (1). Two sets of fixed base plates (5) are internally threaded with an adjustment mechanism.

2. The printed circuit board electroplating fixture according to claim 1, characterized in that, The limiting device includes a limiting plate (12), a connecting sleeve rod (18) is movably sleeved inside the limiting plate (12), a hinge block two (19) is fixedly connected to the back of the connecting sleeve rod (18), one end of a transmission rod (16) is hinged to the outer wall of the hinge block two (19), a transmission block (14) is hinged to the other end of the transmission rod (16), a hinge block one (15) is hinged to the outer wall of the transmission block (14), the bottom end of the hinge block one (15) is fixedly connected to the fixed base plate (5), and a handle (13) is fixedly connected to the top end of the transmission block (14).

3. The printed circuit board electroplating fixture according to claim 2, characterized in that, The limiting plate (12) has two sets of limiting holes inside. The inner wall of the limiting hole is movably sleeved with a limiting sleeve rod (11). The side of the limiting sleeve rod (11) is fixedly connected to the fixing clamp (10).

4. The printed circuit board electroplating fixture according to claim 2, characterized in that, The transmission block (14) is triangular, and the included angle between the two extended ends of the transmission block (14) is between 45 degrees and 75 degrees.

5. The printed circuit board electroplating fixture according to claim 1, characterized in that, The fixed base plate (5) has a slot on its side, the surface of the slot is in contact with the circuit board (1), and the front of the circuit board (1) is in contact with a fixing clip (10).

6. The printed circuit board electroplating fixture according to claim 3, characterized in that, The fixed clamp (10) has a circular hole inside, and a knob (20) is movably sleeved inside the circular hole. The knob (20) is hexagonal, and the diameter of the circular hole is slightly larger than the diameter of the knob (20). An adjusting threaded rod (17) is fixedly connected to the back of the knob (20), and the outer wall of the adjusting threaded rod (17) is threadedly connected to the connecting sleeve rod (18).

7. The printed circuit board electroplating fixture according to claim 6, characterized in that, The outer wall of the adjusting threaded rod (17) is fixedly connected to a limiting collar (21), and the outer wall of the limiting collar (21) is movably sleeved with the fixed clamping block (10).

8. The printed circuit board electroplating fixture according to claim 1, characterized in that, The adjustment mechanism includes a bidirectional threaded rod (8), the outer wall of which is threaded with two sets of fixed base plates (5). Extension blocks (9) are movably sleeved on the outer walls of both the upper and lower ends of the bidirectional threaded rod (8). A knob (7) is fixedly connected to the top end of the bidirectional threaded rod (8). The outer wall of the knob (7) is in contact with one of the extension blocks (9). A connecting rod (6) is fixedly connected to the back of the extension block (9). A connecting sleeve block (4) is fixedly connected to the top end of the connecting rod (6). A connecting crossbar (3) is movably sleeved inside the two sets of connecting sleeve blocks (4). A connecting column (2) is fixedly connected to both ends of the connecting crossbar (3).

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