Tool for surface treatment of PCB (Printed Circuit Board) substrate

Abstract

The utility model discloses a tool for surface treatment of a PCB (printed circuit board) substrate, which belongs to the field of PCB treatment tools and comprises the PCB substrate, a treatment pond and treatment fluid, the treatment fluid is injected into the treatment pond, and the PCB substrate is immersed in the treatment fluid; a through hole is formed in one side of the end face of the PCB substrate, a basic pipe is inserted into the through hole, a fixing head is arranged at one end of the basic pipe, the other end of the basic pipe is connected with a bent pipe, hexagon nuts are arranged on pipe bodies of the basic pipe and the bent pipe in a sleeved mode, the basic pipe, the bent pipe and the PCB substrate are connected through the hexagon nuts, an inserting hole is formed in the side wall of the fixing head, and an L-shaped support is inserted into the inserting hole. According to the tool for surface treatment of the PCB substrate, the basic pipe, the bent pipe and the nut are used in cooperation, the PCB substrate can be stably installed on the tool structure, and efficiency and stability are improved. The tool is universal in design, and the tightness of the nuts can be adjusted to adapt to different PCB substrates. The integration and connection design of the basic pipe and the bent pipe ensures the stability and reliability of the structure, and ensures the processing safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PCB processing frock, especially a frock for PCB substrate surface treatment. BACKGROUND

[0002] PCB board surface treatment technology aims to form a layer of surface layer with different properties from the substrate on components and electrical connection points by artificial means to ensure excellent solderability and electrical properties. In this process, the use of clamps is crucial, which ensures that the PCB board can be stably immersed in the treatment pool for various surface treatments.

[0003] However, it is worth noting that the positions clamped by the clamp often encounter some challenges during surface treatment. The treatment layer of these positions is often relatively weak, mainly because when the clamp clamps the edge of the PCB board, the contact of the clamping area with the surface treatment liquid is limited. At the clamping site, the surface treatment liquid may not be completely and uniformly covered, thereby forming a relatively weak treatment layer.

[0004] This weak treatment layer can cause a series of problems. First, these positions are prone to poor welding phenomena such as virtual welding and false welding during welding, which seriously affects the welding quality of the PCB board. Second, these weak areas are more susceptible to environmental factors such as oxidation and corrosion during long-term use, thereby reducing the overall reliability of the PCB board. Finally, from the appearance, the difference between these areas and other positions may affect the aesthetics of the PCB board. SUMMARY

[0005] The main purpose of the utility model is to provide a frock for PCB substrate surface treatment, which can effectively solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A frock for PCB substrate surface treatment, comprising a PCB substrate, a treatment pool, and a treatment liquid, the treatment liquid being injected into the treatment pool, and the PCB substrate being immersed in the treatment liquid; a through hole is formed on one side of the end face of the PCB substrate, a base pipe is inserted into the through hole, a fixed head is provided at one end of the base pipe, and an elbow pipe is connected to the other end of the base pipe; a hexagonal nut is sleeved on the pipe body of the base pipe and the elbow pipe, the base pipe, the elbow pipe, and the PCB substrate are connected through the hexagonal nut, a side wall of the fixed head is provided with a insertion hole, an L-shaped bracket is inserted into the insertion hole, a pin hole is formed at the lower end of the L-shaped bracket, a bolt rod is inserted into the fixed head, and the fixed head and the L-shaped bracket are fixed by inserting the bolt rod into the pin hole.

[0008] In a further preferred embodiment of the utility model, the base pipe and the fixed head are designed as one body, the elbow pipe is designed in a "C" shape, and the end of the elbow pipe is fixed to the base pipe through a screw rod.

[0009] Further preferred in the utility model, the outer surface of the base pipe and the elbow is equipped with thread, the hexagon nut is connected with the base pipe and the elbow through thread;

[0010] Further preferred in the utility model, the end face of the L-shaped support is equipped with round hole, and the L-shaped support is connected with the up-down lifting equipment through bolt;

[0011] Further preferred in the utility model, the bolt rod is divided into bolt head and screw rod, and the bolt head is arranged at the rod head of the screw rod and is connected with the fixed head through screw thread.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the utility model, the base pipe, the elbow and the hexagon nut are used in cooperation, and the PCB substrate can be quickly and stably installed on the tool structure. This design not only improves the work efficiency, but also ensures the stability of the PCB substrate during processing. The two hexagon nuts are fixed on the base pipe and the elbow respectively, and the position of the PCB substrate in the tool structure is effectively fixed, effectively preventing the shaking of the PCB substrate during processing, thereby ensuring the uniformity and consistency of the processing effect.

[0014] The design of the tool structure has certain universality and can adapt to PCB substrates of different sizes and shapes. At the same time, by adjusting the tightness of the hexagon nut, PCB substrates of different thicknesses can be adapted, and the applicability and flexibility of the tool are enhanced. The integrated design of the base pipe and the fixed head ensures the stability of the tool structure, and the "C" shape design of the elbow and the screw rod connection with the base pipe enhance the reliability of the structure. This design makes the tool structure still stable when bearing certain load, ensuring the safety of the PCB substrate during processing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the PCB substrate and connecting assembly of the utility model show diagram;

[0016] Figure 2 It is Figure 1 It is the enlarged schematic view of A in the middle;

[0017] Figure 3 It is the exploded view of the connecting assembly of the utility model;

[0018] Figure 4 It is the schematic view of the assembly of the utility model in the processing pool.

[0019] In the figure: 1, PCB substrate; 2, processing pool; 3, processing liquid; 4, L-shaped bracket; 5, through hole; 6, base pipe; 7, fixed head; 8, elbow; 9, hexagonal nut; 10, jack; 11, pin hole; 12, bolt. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] In the display Figures 1 to 4 , we introduce a kind of tooling structure specially used for PCB substrate surface treatment. This tooling is mainly composed of three main parts: PCB substrate 1, processing pool 2 and processing liquid 3. Processing liquid 3 is injected into processing pool 2, while PCB substrate 1 is immersed in processing liquid 3 for surface treatment.

[0022] In particular, one end surface of PCB substrate 1 is provided with a through hole 5. In order to facilitate installation and fixation, a base pipe 6 is inserted into the through hole 5. The base pipe 6 is designed very uniquely, with a fixed head 7 at one end and an elbow 8 at the other end. It is worth noting that hexagonal nuts 9 are sleeved on the pipes of base pipe 6 and elbow 8, which allows us to firmly connect base pipe 6, elbow 8 and PCB substrate 1 together by rotating hexagonal nuts 9.

[0023] Jack 10 is opened on the side wall of fixed head 7, while pin hole 11 is provided at the lower end of L-shaped bracket 4. In order to fix L-shaped bracket 4 and fixed head 7, we use a bolt 12. The structure of bolt 12 is composed of a stud and a screw rod, where the stud is located at the top of the screw rod and is connected with fixed head 7 through threads. When the screw rod part of bolt 12 is inserted into pin hole 11, L-shaped bracket 4 and fixed head 7 are firmly fixed together.

[0024] In actual use, in order to quickly install PCB substrate 1, we only need to align its through hole 5 with elbow 8, and then let PCB substrate 1 slide along elbow 8 to fall onto base pipe 6.

[0025] Base pipe 6 and fixed head 7 are designed integrally, which ensures the stability of the structure. Elbow 8 adopts "C" shape design, and its end is fixed with base pipe 6 through screw rod. In addition, the outer surfaces of base pipe 6 and elbow 8 are provided with threads, which allows hexagonal nuts 9 to be tightly connected with them.

[0026] The end surface of L-shaped bracket 4 is provided with a round hole, which allows it to be connected with up and down lifting equipment through bolts, facilitating lifting operation.

[0027] When it is necessary to prevent the PCB substrate 1 from shaking, we only need to rotate the elbow pipe 8, and rotate one hexagonal nut 9 on the base pipe 6 and the other on the elbow pipe 8. Then, align the through hole 5 of the PCB substrate 1 with the base pipe 6, and make one end of the PCB substrate 1 blocked by the hexagonal nut 9. Next, align the screw rod of the elbow pipe 8 with the end opening of the base pipe 6, and rotate the elbow pipe 8 to achieve the close connection between the elbow pipe 8 and the base pipe 6. Finally, the complete fixation of the PCB substrate 1 is achieved by the second hexagonal nut 9, and the two hexagonal nuts 9 work together to effectively prevent the PCB substrate 1 from shaking.

[0028] Installation process: Take out the tooling, including the PCB substrate 1, the base pipe 6 (with the fixing head 7 and the connecting end with the elbow pipe 8), the elbow pipe 8 (designed as "C" shape and with the connecting screw rod with the base pipe 6), the hexagonal nut 9, and the L-shaped bracket 4. Prepare the PCB substrate 1 to be processed, and make sure that the through hole 5 is in the position that can be inserted into the base pipe 6.

[0029] Align the screw rod end of the base pipe 6 with the opening of the elbow pipe 8, and rotate the elbow pipe 8 until the two are closely connected. Put one hexagonal nut 9 on each of the base pipe 6 and the elbow pipe 8, and preliminarily rotate and fix them.

[0030] Align the through hole 5 of the PCB substrate 1 with the elbow pipe 8, and then gently push the PCB substrate 1 so that it slides along the elbow pipe 8 and falls onto the base pipe 6. Adjust the position of the PCB substrate 1 to ensure that it is stably placed on the base pipe 6.

[0031] Rotate the hexagonal nut 9 on the base pipe 6 to make it tightly contact with the PCB substrate 1, and preliminarily fix it. Rotate the hexagonal nut 9 on the elbow pipe 8 to make it tightly contact with the other side of the PCB substrate 1, and completely fix it; align the pin hole 11 of the L-shaped bracket 4 with the insertion hole 10 of the fixing head 7, and insert the insertion pin rod 12 to ensure that the L-shaped bracket 4 is fixed with the fixing head 7. According to the needs, connect the round hole of the L-shaped bracket 4 with the up-and-down lifting equipment to facilitate the subsequent lifting operation.

[0032] In use: Inject the treatment liquid 3 into the treatment tank 2. According to the above installation process, fix the PCB substrate 1 on the L-shaped bracket 4 through the tooling. By controlling the up-and-down lifting equipment, slowly lower the L-shaped bracket 4 together with the PCB substrate 1 into the treatment tank 2, and make sure that the PCB substrate 1 is completely immersed in the treatment liquid 3. According to the treatment needs, keep the PCB substrate 1 soaked in the treatment liquid 3 for a certain period of time to achieve the expected surface treatment effect. After the treatment is completed, by controlling the lifting equipment, take out the L-shaped bracket 4 together with the PCB substrate 1 from the treatment tank 2. Remove the insertion pin rod 12 to separate the L-shaped bracket 4 from the fixing head 7. Loosen and remove the two hexagonal nuts 9 to take off the PCB substrate 1 from the base pipe 6 and the elbow pipe 8. Perform subsequent operations on the treated PCB substrate 1, such as cleaning, drying, etc.

[0033] It is to be noted that, in this document, relational terms such as first and second, and the like, can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0034] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A jig for treating a surface of a PCB substrate, comprising a PCB substrate (1), a treatment tank (2) and a treatment liquid (3), the treatment liquid (3) being injected into the treatment tank (2) and the PCB substrate (1) being immersed in the treatment liquid (3), characterized in that: The end face side of the PCB substrate (1) is provided with a through hole (5), the through hole (5) is inserted with a base pipe (6), one end of the base pipe (6) is provided with a fixing head (7), the other end of the base pipe (6) is connected with a elbow pipe (8), the pipe body of the base pipe (6) and the elbow pipe (8) is sleeved with a hexagon nut (9), the base pipe (6), the elbow pipe (8) and the PCB substrate (1) are connected through the hexagon nut (9), the side wall of the fixing head (7) is provided with a insertion hole (10), the insertion hole (10) is inserted with an L-shaped support (4), the lower end of the L-shaped support (4) is provided with a pin hole (11), the end of the fixing head (7) is inserted with a bolt rod (12), the bolt rod (12) is inserted into the pin hole (11) to fix the fixing head (7) and the L-shaped support (4). ​ 2. The jig for treating the surface of a PCB substrate according to claim 1, wherein: The base pipe (6) and the fixing head (7) are designed integrally, the elbow pipe (8) is designed in a "C" shape, and the end of the elbow pipe (8) is fixed with the base pipe (6) through a screw rod.

3. The jig for treating the surface of a PCB substrate according to claim 2, wherein: The outer surface of the base pipe (6) and the elbow pipe (8) is provided with a thread, and the hexagon nut (9) is connected with the base pipe (6) and the elbow pipe (8) through the thread.

4. The jig for treating the surface of a PCB substrate according to claim 3, wherein: The end face of the L-shaped support (4) is provided with a round hole, and the L-shaped support (4) is connected with the up-down lifting equipment through a bolt.

5. The jig for treating the surface of a PCB substrate according to claim 4, wherein: The bolt rod (12) is divided into a bolt head and a screw rod, the bolt head is arranged at the rod head of the screw rod, and the bolt rod (12) is threadedly connected with the fixing head (7) through the screw rod.

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