Printed circuit board chemical nickel and gold immersion hanger

Abstract

The utility model relates to the technical field of circuit board nickel plating, in particular to a printed circuit board chemical nickel gold immersion hanger which comprises a supporting block, a plurality of connecting blocks are fixedly arranged on the bottom face of the supporting block, a first movable hanger and a second hanger are arranged below the supporting block, the first movable hanger is in sliding connection with the connecting blocks respectively, and the second hanger is in sliding connection with the connecting blocks. The top face of the second hanging frame is fixedly connected with the bottom faces of the multiple connecting blocks respectively, the first movable hanging frame and the second hanging frame are provided with quick-release assemblies respectively, the quick-release assemblies are provided with a first hanging tool and a second hanging tool respectively, and the first hanging tool is in a hook shape. The first hanging tool and the second hanging tool are suitable for nickel plating of printed circuit boards of different sizes and shapes, the quick release assembly enables the first hanging tool and the second hanging tool to be replaced easily and quickly, the appropriate first hanging tool or the appropriate second hanging tool is selected, the phenomenon that electroplating is unstable due to improper trepanning positions or irregular trepanning shapes is reduced, and the electroplating quality is improved. And the electroplating quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel plating of circuit boards, in particular to a hanger for chemical nickel plating of printed circuit boards. Background Art

[0002] Printed circuit board (PCB) electroless nickel plating hanger is a commonly used fixture in the electroplating process. It is used to fix the printed circuit board to complete the electroplating process. During the electroplating process, the hanger plays the role of supporting and positioning the circuit board, ensuring that the circuit board can be evenly immersed in the electroplating solution, thereby achieving the purpose of surface plating.

[0003] A search revealed a Chinese patent with publication number CN218291166U, which provides a hanger for electroless nickel plating of printed circuit boards. The hanger, which is implemented by the cooperation between a support frame, a drive mechanism, and a hanging mechanism, not only facilitates clamping and fixing the printed circuit board to be processed, but also facilitates lifting, moving, and rotating the clamped circuit board, thereby ensuring uniform electroplating of the circuit board while immersed in the plating solution, thereby ensuring the production quality of the printed circuit board.

[0004] However, during use, it was found that the hangers of the device were mostly fixed, which made it difficult to adapt to the nickel plating of printed circuit boards of different sizes and shapes. The opening positions or shapes of some printed circuit boards were not conducive to the use of hangers, which affected the stability of the printed circuit boards during nickel plating, and easily caused the electroplating liquid to be unable to evenly cover the surface of the printed circuit board, and even affected the uniformity and quality of the electroplating layer. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a hanger for chemical nickel plating of printed circuit boards. The first hanger and the second hanger are suitable for nickel plating of printed circuit boards of different sizes and shapes. The quick-release assembly makes the replacement of the first hanger and the second hanger simple and quick. Selecting a suitable first hanger or second hanger reduces the unstable electroplating phenomenon caused by improper hole position or irregular shape, thereby improving the electroplating quality.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a printed circuit board chemical nickel plating gold hanger, including a support block, a plurality of connecting blocks fixedly provided on the bottom surface of the support block, a first movable hanger and a second hanger are provided under the support block, the first movable hanger is slidably connected to the plurality of connecting blocks respectively, the top surface of the second hanger is fixedly connected to the bottom surfaces of the plurality of connecting blocks respectively, the first movable hanger and the second hanger are respectively installed with quick-release components, the quick-release components are respectively provided with a first hanger and a second hanger, and the first hanger is in the shape of a hook.

[0007] Preferably, a plurality of hanging rings are fixedly provided on the top surface of the support block, and cylinders are installed on both ends of the support block through mounting seats, and the bottom surfaces of the piston rods of the two cylinders are respectively fixedly connected to the top surface of the first movable hanging bracket.

[0008] Through the above technical solution, the piston rods of the two cylinders simultaneously drive the first movable bracket to slide along the connecting block, making the height adjustment of the first movable bracket more convenient and accurate.

[0009] Preferably, a plurality of limit blocks are fixed on the top surfaces of the first movable hanger and the second hanger respectively, and the quick-release assembly includes a card block, and a limit groove is provided on the upper end of the inner wall of the card block, and the card block is plugged into the limit block through the limit groove.

[0010] Through the above technical solution, when the clamping block and the limiting block are tightly matched, the two clamping blocks are fixed, and when the clamping block and the limiting block are separated, the disassembly of the two clamping blocks is completed.

[0011] Preferably, a fixing block is fixed on the top surface of the clamping block, one of the fixing blocks is rotatably connected to a screw rod, one end of the screw rod is sleeved with a limiting ring on the outer peripheral wall, and the limiting ring is rotatably connected to one of the fixing blocks.

[0012] Preferably, the other fixing block is threadedly connected to the other end of the screw rod through a threaded hole, and a hand wheel is fixed on the screw rod.

[0013] Through the above technical solution, the handwheel is rotated to drive the screw to rotate. The screw is threadedly connected to one of the fixed blocks. The rotation of the screw will cause it to move along the threaded hole, thereby driving the clamping block to move relative to the limit block.

[0014] Preferably, the second hanger is provided with an L-shaped block, a T-shaped block is fixedly provided inside the L-shaped block, and a plurality of clamping plates are slidably connected to the T-shaped block.

[0015] Preferably, a plurality of pressing blocks are fixedly provided on the upper end of the inner wall of the L-shaped block in a uniformly arranged structure, and a plurality of anti-sliding blocks are fixedly provided on the clamping plate and the pressing blocks respectively, and two of the anti-sliding blocks are in frictional contact.

[0016] Through the above technical solution, the printed circuit board to be nickel-plated is inserted between the two clamps and the pressure block. At this time, the two sides of the printed circuit are in friction contact with the corresponding anti-sliding blocks respectively. The design of the anti-sliding blocks increases the friction between the clamps and the printed circuit board, ensuring the stability of the circuit board during the electroplating process.

[0017] Preferably, a spring is provided between the pressing block and the clamping plate, one end of the spring is fixedly connected to the pressing block on the side away from the anti-sliding block, and the other end of the spring is fixedly connected to the clamping plate on the side away from the anti-sliding block.

[0018] Through the above technical solution, the spring will be squeezed and elastically deformed, and the clamping plate will slide along the T-shaped block under the action of the spring until the printed circuit board is stably clamped between the clamping plate and the pressing block.

[0019] Beneficial effects of the utility model:

[0020] 1. The staff selects a suitable hanger according to the size and shape of the printed circuit board, and installs it on the first movable hanger or the second hanger through the quick-release assembly. By sliding the first movable hanger along the connecting block, the first movable hanger can be easily adjusted to the appropriate use height. The printed circuit board is hung on the selected first hanger or the second hanger, and it is ensured to be stably suspended. The first hanger or the second hanger (together with the suspended printed circuit board) is immersed in the electroplating solution for electroplating. The first hanger and the second hanger are suitable for nickel plating of printed circuit boards of different sizes and shapes. The quick-release assembly makes the replacement of the first hanger and the second hanger simple and quick. Selecting the appropriate first hanger or second hanger reduces the instability of electroplating caused by improper opening position or irregular shape, thereby improving the quality of electroplating.

[0021] 2. When the height of the first movable hanger needs to be adjusted, the piston rods of the two cylinders simultaneously drive the first movable hanger to slide along the connecting block, making the height adjustment of the first movable hanger more convenient and accurate, and facilitating the adjustment of the first movable hanger to the appropriate distance between the first movable hanger and the second hanger, thereby improving the flexibility and adaptability of the hanger.

[0022] 3. The screw is driven to rotate by turning the hand wheel. The screw is threadedly connected to one of the fixed blocks. The rotation of the screw will cause it to move along the threaded hole, thereby driving the clamping block to move relative to the limit block. When the clamping block is tightly fitted with the limit block, the two clamping blocks are fixed; when the clamping block is separated from the limit block, the two clamping blocks are disassembled. The installation and disassembly of the clamping blocks facilitates the installation and disassembly of the first hanger and the second hanger, and is convenient for installation to a suitable spacing, adapting to printed circuit boards of different sizes and shapes, improving the installation and disassembly efficiency of the hangers, ensuring that the first hanger and the second hanger remain stable during the electroplating process, reducing the electroplating quality problems of the printed circuit boards caused by loosening or falling off of the first hanger and the second hanger, and further improving the stability and reliability of the electroplating operation.

[0023] 4. Insert the printed circuit board that needs nickel plating between the two clamps and the pressure block. At this time, the two sides of the printed circuit are in friction contact with the corresponding anti-sliding blocks respectively. As the printed circuit board is inserted, the spring will be squeezed and elastically deformed. The clamp slides along the T-shaped block under the action of the spring until the printed circuit board is stably clamped between the clamp and the pressure block. The design of the anti-sliding block increases the friction between the clamp and the printed circuit board, ensuring the stability of the circuit board during the electroplating process, and at the same time adapts to the clamping of printed circuit boards of different sizes. Due to the close fit between the clamp and the pressure block and the anti-slip effect of the anti-sliding block, the circuit board is not easy to slip or shift during the electroplating process, thereby ensuring the uniformity and quality of the electroplating layer. After the electroplating is completed, push the clamp in the opposite direction to remove the printed circuit board from between the clamp and the pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the limit block structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the assembly of the card block structure of the present utility model;

[0027] Figure 4 This is an enlarged schematic diagram of the structure at point A of the present utility model;

[0028] Figure 5 This is a schematic structural diagram of the second hanger of the present utility model;

[0029] Figure 6 This is a bottom perspective view of the splint structure of the present invention.

[0030] In the figure: 1. Support block; 2. Connecting block; 3. First movable hanger; 4. Second hanger; 5. Quick release assembly; 501. Clamping block; 502. Limiting groove; 503. Fixing block; 504. Screw rod; 505. Limiting ring; 506. Handwheel; 6. First hanger; 7. Second hanger; 8. Hanging ring; 9. Cylinder; 10. Limiting block; 11. L-shaped block; 12. T-shaped block; 13. Clamp; 14. Pressing block; 15. Anti-sliding block; 16. Spring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0032] like Figure 1-4As shown, this embodiment provides a hanger for chemical nickel plating of a printed circuit board, comprising a support block 1, a plurality of connecting blocks 2 fixedly provided on the bottom surface of the support block 1, a first movable hanger 3 and a second hanger 4 provided below the support block 1, the first movable hanger 3 being slidably connected to the plurality of connecting blocks 2 respectively, the top surfaces of the second hangers 4 being fixedly connected to the bottom surfaces of the plurality of connecting blocks 2 respectively, quick-release components 5 being respectively installed on the first movable hanger 3 and the second hanger 4, the quick-release components 5 being respectively provided with a first hanger 6 and a second hanger 7, and the first hanger 6 being in the shape of a hook.

[0033] A plurality of hanging rings 8 are fixedly provided on the top surface of the support block 1, and cylinders 9 are installed at both ends of the support block 1 through mounting seats. The bottom surfaces of the piston rods of the two cylinders 9 are respectively fixedly connected to the top surface of the first movable hanger 3; the piston rods of the two cylinders 9 simultaneously drive the first movable hanger 3 to slide along the connecting block 2, making the height adjustment of the first movable hanger 3 more convenient and accurate.

[0034] A plurality of limit blocks 10 are fixed to the top surfaces of the first movable hanger 3 and the second hanger 4 respectively. The quick-release assembly 5 includes a card block 501. A limit groove 502 is provided at the upper end of the inner wall of the card block 501. The card block 501 is plugged into and matched with the limit block 10 through the limit groove 502. When the card block 501 is tightly matched with the limit block 10, the two card blocks 501 are fixed. When the card block 501 is separated from the limit block 10, the disassembly of the two card blocks 501 is completed.

[0035] A fixed block 503 is fixed on the top surface of the clamping block 501, and a screw rod 504 is rotatably connected to one of the fixed blocks 503. A limiting ring 505 is sleeved on the outer peripheral wall of one end of the screw rod 504. The limiting ring 505 is rotatably connected to one of the fixed blocks 503, and the other fixed block 503 is threadedly connected to the other end of the screw rod 504 through a threaded hole. A handwheel 506 is fixed on the screw rod 504; the screw rod 504 is driven to rotate by rotating the handwheel 506, and the screw rod 504 is threadedly connected to one of the fixed blocks 503. The rotation of the screw rod 504 will cause it to move along the threaded hole, thereby driving the clamping block 501 to move relative to the limiting block 10.

[0036] Working principle: Before electroplating, the staff selects a suitable hanger according to the size and shape of the printed circuit board, and installs it on the first movable hanger 3 or the second hanger 4 through the quick-release component 5. By sliding the first movable hanger 3 along the connecting block 2, the first movable hanger 3 is conveniently adjusted to a suitable use height, and the printed circuit board is hung on the selected first hanger 6 or second hanger 7, and its stable suspension is ensured. The first hanger 6 or second hanger 7 (together with the suspended printed circuit board) is immersed in the electroplating solution to carry out the electroplating operation. The first hanger 6 and the second hanger 7 are suitable for nickel plating of printed circuit boards of different sizes and shapes. The quick-release component 5 makes the replacement of the first hanger 6 and the second hanger 7 simple and quick. Selecting the appropriate first hanger 6 or second hanger 7 reduces the unstable electroplating phenomenon caused by improper opening position or irregular shape, thereby improving the electroplating quality.

[0037] When the height of the first movable hanger 3 needs to be adjusted, the piston rods of the two cylinders 9 simultaneously drive the first movable hanger 3 to slide along the connecting block 2, making the height adjustment of the first movable hanger 3 more convenient and accurate, and facilitating the adjustment of the first movable hanger 3 and the second hanger 4 to a suitable distance, thereby improving the flexibility and adaptability of the hanger;

[0038] When it is necessary to fix or release the quick-release assembly 5, the screw rod 504 is driven to rotate by turning the hand wheel 506. The screw rod 504 is threadedly connected to one of the fixing blocks 503. The rotation of the screw rod 504 will make it move along the threaded hole, thereby driving the clamping block 501 to move relative to the limit block 10. When the clamping block 501 is tightly matched with the limit block 10, the two clamping blocks 501 are fixed; when the clamping block 501 is separated from the limit block 10, the two clamping blocks 501 are disassembled. The installation and disassembly of the clamping block 501 facilitates the installation and disassembly of the first hanger 6 and the second hanger 7, and is convenient for installation to a suitable spacing, adapting to printed circuit boards of different sizes and shapes, improving the installation and disassembly efficiency of the hangers, ensuring that the first hanger 6 and the second hanger 7 remain stable during the electroplating process, reducing the electroplating quality problems of the printed circuit boards caused by loosening or falling off of the first hanger 6 and the second hanger 7, and further improving the stability and reliability of the electroplating operation. Example 2

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, on the basis of Example 1, an L-shaped block 11 is provided on the second hanger 7, a T-shaped block 12 is fixed inside the L-shaped block 11, a plurality of clamps 13 are slidably connected to the T-shaped block 12, a plurality of pressure blocks 14 are fixed on the upper end of the inner wall of the L-shaped block 11 in a uniformly arranged structure, a plurality of anti-slide blocks 15 are respectively fixed on the clamps 13 and the pressure blocks 14, and the two anti-slide blocks 15 are in friction contact; the printed circuit board to be nickel-plated is inserted between the two clamps 13 and the pressure blocks 14, at this time the two sides of the printed circuit are in friction contact with the corresponding anti-slide blocks 15 respectively, and the design of the anti-slide blocks 15 increases the friction between the clamps 13 and the printed circuit board, thereby ensuring the stability of the circuit board during the electroplating process.

[0040] A spring 16 is provided between the pressure block 14 and the clamping plate 13, one end of the spring 16 is fixedly connected to the pressure block 14 on the side away from the anti-sliding block 15, and the other end of the spring 16 is fixedly connected to the clamping plate 13 on the side away from the anti-sliding block 15; the spring 16 will be squeezed and elastically deformed, and the clamping plate 13 slides along the T-shaped block 12 under the action of the spring 16 until the printed circuit board is stably clamped between the clamping plate 13 and the pressure block 14.

[0041] When the second hanger 7 is used, the printed circuit board to be nickel-plated is inserted between the two clamping plates 13 and the pressing block 14. At this time, both sides of the printed circuit are in friction contact with the corresponding anti-slide blocks 15. As the printed circuit board is inserted, the spring 16 is squeezed and elastically deformed. Under the action of the spring 16, the clamping plate 13 slides along the T-shaped block 12 until the printed circuit board is stably clamped between the clamping plate 13 and the pressing block 14. The design of the anti-slide block 15 increases the friction between the clamping plate 13 and the printed circuit board, ensuring the stability of the circuit board during the electroplating process, while adapting to the clamping use of printed circuit boards of different sizes.

[0042] Due to the close fit between the clamping plate 13 and the pressing block 14 and the anti-slip effect of the anti-slip block 15, the circuit board is not easy to slip or shift during the electroplating process, thereby ensuring the uniformity and quality of the electroplating layer. After the electroplating is completed, the clamping plate 13 is pushed to move in the opposite direction to remove the printed circuit board from between the clamping plate 13 and the pressing block 14.

[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hanger for electroless nickel-gold deposition on a printed circuit board, comprising a support block (1), characterized in that: The bottom surface of the support block (1) is fixedly provided with a plurality of connecting blocks (2); a first movable hanger (3) and a second hanger (4) are provided below the support block (1); the first movable hanger (3) is slidably connected to the plurality of connecting blocks (2) respectively; the top surface of the second hanger (4) is fixedly connected to the bottom surfaces of the plurality of connecting blocks (2) respectively; quick-release components (5) are respectively installed on the first movable hanger (3) and the second hanger (4); the quick-release components (5) are respectively provided with a first hanger (6) and a second hanger (7); the first hanger (6) is in the shape of a hook.

2. The electroless nickel-gold immersion hanger for printed circuit boards according to claim 1, wherein: The top surface of the support block (1) is fixedly provided with a plurality of hanging rings (8), and cylinders (9) are mounted on both ends of the support block (1) through mounting seats, and the bottom surfaces of the piston rods of the two cylinders (9) are respectively fixedly connected to the top surface of the first movable hanging bracket (3).

3. The electroless nickel-gold immersion hanger for printed circuit boards according to claim 2, wherein: A plurality of limit blocks (10) are fixedly mounted on the top surfaces of the first movable hanger (3) and the second hanger (4), respectively. The quick-release assembly (5) comprises a clamping block (501), a limit slot (502) is provided on the upper end of the inner wall of the clamping block (501), and the clamping block (501) is plugged into and engaged with the limit block (10) via the limit slot (502).

4. The hanger for electroless nickel plating of printed circuit boards according to claim 3, characterized in that: A fixed block (503) is fixed on the top surface of the clamping block (501), wherein a screw rod (504) is rotatably connected to one of the fixed blocks (503), and a limiting ring (505) is sleeved on the outer peripheral wall of one end of the screw rod (504), and the limiting ring (505) is rotatably connected to one of the fixed blocks (503).

5. The hanger for electroless nickel plating of printed circuit boards according to claim 4, characterized in that: The other fixed block (503) is threadedly connected to the other end of the screw rod (504) through a threaded hole, and a hand wheel (506) is fixedly provided on the screw rod (504).

6. The hanger for electroless nickel plating of printed circuit boards according to claim 2, characterized in that: The second hanger (7) is provided with an L-shaped block (11), a T-shaped block (12) is fixedly provided inside the L-shaped block (11), and a plurality of clamping plates (13) are slidably connected to the T-shaped block (12).

7. The hanger for electroless nickel plating of a printed circuit board according to claim 6, characterized in that: A plurality of pressing blocks (14) are fixedly provided on the upper end of the inner wall of the L-shaped block (11) in a uniformly arranged structure. A plurality of anti-sliding blocks (15) are respectively fixedly provided on the clamping plate (13) and the pressing blocks (14), and two of the anti-sliding blocks (15) are in frictional contact.

8. The hanger for electroless nickel plating of a printed circuit board according to claim 7, characterized in that: A spring (16) is provided between the pressure block (14) and the clamping plate (13), one end of the spring (16) is fixedly connected to the pressure block (14) on the side away from the anti-sliding block (15), and the other end of the spring (16) is fixedly connected to the clamping plate (13) on the side away from the anti-sliding block (15).

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