Multipurpose auxiliary tool for ultrathin circuit board
By designing multi-purpose auxiliary tools to support frames and clamp components, the problem of complex structure and non-reusable ultra-thin circuit board fixtures is solved, efficient fixing and processing is achieved, production costs and residual glue problems are reduced, and production is improved Processing quality and efficiency.
Patent Information
- Application Number
- CN202421041221.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the prior art, the fixtures of ultra-thin circuit boards are complex and difficult to reuse in multiple processes, resulting in high production and processing difficulties and cost, and the adhesive fixation is prone to produce residual glue, reducing quality.
A multi-purpose auxiliary tool including support frames and clamping components is designed. The clamping components are connected by elastic members to provide support and fix ultra-thin circuit boards, rectangular through-holes for reducing machining difficulties, and through-holes for electroplating. And quick installation and removal are achieved through rotating rods and limiting parts.
The fixing and disassembly of ultra-thin circuit boards is simplified, the generation of residual glue is reduced, the production quality and efficiency of production and processing are improved, and the reuse of tools is realized in multiple processes, reducing production costs.
Smart Images
Figure CN222283601U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit board manufacturing, in particular to a multi-purpose auxiliary tool for an ultra-thin circuit board. Background Art
[0002] As electronic products develop towards thinness, miniaturization and high integration, ultra-thin circuit boards have emerged. Ultra-thin circuit boards are a special type of printed circuit board (PCB) with a thickness much lower than that of conventional PCBs, usually between 0.1 and 0.3 mm, or even thinner. In the production and manufacturing process of ultra-thin circuit boards, due to their thinness and softness, the fragility often leads to deformation and damage, so ultra-thin circuit boards need to be fixed during production and manufacturing.
[0003] In the current existing technology, different clamps are used to fix the ultra-thin circuit boards in different production processes, and the clamp structure is relatively complex, and it takes a lot of time to disassemble the circuit boards. At the same time, a clamp cannot be reused in multiple processes, which increases the difficulty of production and processing and increases the cost of production and processing. In some processes, adhesive fixation is also used, which leads to residual adhesive and reduces the quality of production and processing. Utility Model Content
[0004] The purpose of the utility model is to provide a multi-purpose auxiliary tool for ultra-thin circuit boards, aiming to solve the technical problems existing in the prior art such as complex fixture structure, non-reusability in multiple processes, high difficulty and cost in production and processing, and low production and processing quality.
[0005] In order to solve the above technical problems, the utility model provides a multi-purpose auxiliary tool for ultra-thin circuit boards, comprising: a supporting frame, the supporting frame matches the ultra-thin circuit board, the ultra-thin circuit board is placed on the supporting frame, and the center of the supporting frame is provided with a rectangular through hole; a plurality of clamping components arranged at intervals on the circumference of the supporting frame, the clamping components comprising: a clamping seat arranged on the side of the supporting frame, a clamping block rotatably arranged on the clamping seat and extending toward the inner side of the supporting frame, the clamping block is elastically connected to the clamping seat through an elastic member, and the ultra-thin circuit board is fixed between the supporting frame and the clamping block.
[0006] The supporting frame supports and smoothes the ultra-thin circuit board, preventing the ultra-thin circuit board from warping, wrinkling, and other deformations during processing, thereby improving the quality of production and processing; the rectangular through hole is used to expose the processing area of the ultra-thin circuit board, which is conducive to reducing the processing difficulty of the ultra-thin circuit board, and further facilitates the use of the multi-purpose auxiliary tool of the ultra-thin circuit board in multiple processes. The ultra-thin circuit board is fixed between the clamp block and the supporting frame, so that the board edge of the ultra-thin circuit board and the supporting frame are aligned, which is conducive to reducing the offset of the ultra-thin circuit board relative to the supporting frame, improving the processing accuracy, and further facilitating the production and processing quality of the ultra-thin circuit board. The clamp block and the clamping seat clamp the ultra-thin circuit board through an elastic connection, replacing the method of manually using specific tools to install and fix the ultra-thin circuit board, which is conducive to reducing the time for installing and removing the ultra-thin circuit board and improving the efficiency of production and processing.
[0007] Preferably, the supporting frame is further provided with a plurality of conducting holes adjacent to the rectangular through holes, and the plurality of conducting holes match the ultra-thin circuit board.
[0008] The via holes are matched with the tool holes of the ultra-thin circuit board. After gold plating, the tool holes are covered with conductive material. During electroplating, the supporting frame and the ultra-thin circuit board can be directly connected through the conductive materials in the via holes and the tool holes, thereby expanding the use of the multi-purpose auxiliary tools for ultra-thin circuit boards, reducing the difficulty of production and processing, and reusing the multi-purpose auxiliary tools for ultra-thin circuit boards in multiple processes.
[0009] Preferably, the clamping assembly further comprises a rotating rod penetrating the clamping seat and the clamping block, and the clamping block is rotatably connected to the clamping seat via the rotating rod.
[0010] The rotating rod constrains the clamping block on the clamping seat, thereby realizing the rotational connection between the clamping block and the clamping seat, which is beneficial to the installation, disassembly and subsequent maintenance of the clamping assembly.
[0011] Preferably, the elastic member is a torsion spring, and the torsion spring is sleeved on the rotating rod. One end of the elastic member abuts against the supporting frame, and the other end abuts against the clamping block.
[0012] The elastic member is sleeved on the rotating rod, which is beneficial to the positioning of the elastic member and convenient for installation and disassembly; one end of the elastic member abuts the supporting frame, and the other end abuts the clamping block, so that the clamping block can be pressed against the supporting frame, which is beneficial to improve the effect of the clamping assembly in fixing the ultra-thin circuit board and further improve the production and processing quality of the ultra-thin circuit board.
[0013] Preferably, both ends of the rotating rod are further provided with limiting members, and at least one of the limiting members is detachably connected to the rotating rod.
[0014] On the one hand, the detachable limiter constrains the rotating rod from separating from the clamping assembly, which is beneficial to the installation, disassembly and subsequent maintenance of the clamping assembly. On the other hand, it constrains the clamping block from shifting, improves the effect of fixing the ultra-thin circuit board, and further helps to improve the production and processing quality of the ultra-thin circuit board.
[0015] Preferably, the clamping block is an "L"-shaped structure, with the longer end thereof extending toward the inner side of the supporting frame.
[0016] The "L"-shaped structure has a short end connected to the clamping seat, so that space for clamping a circuit board of corresponding thickness is left between the clamping block and the supporting frame, and the long end extends to the inside of the supporting frame to clamp the edge of the ultra-thin circuit board. After placing the ultra-thin circuit board, close the clamping assembly, and the short end can push the ultra-thin circuit board to align with the edge of the supporting frame, which is beneficial to improve the fixing effect of the ultra-thin circuit board and further helps to improve the production and processing quality of the ultra-thin circuit board.
[0017] Preferably, when the clamping assembly clamps the ultra-thin circuit board, the extension length of the clamping block is smaller than the vertical distance from the edge of the rectangular through hole to the edge of the supporting frame.
[0018] Limiting the extension length of the clamp block prevents the clamp block from blocking the processing area of the ultra-thin circuit board with exposed rectangular through holes during processing, which is beneficial to expanding the use of the multi-purpose auxiliary tool for ultra-thin circuit boards and further beneficial to the repeated use of the multi-purpose auxiliary tool for ultra-thin circuit boards in multiple processes.
[0019] Preferably, the supporting frame is a square frame structure, and a plurality of the clamping assemblies are disposed on four sides of the square frame structure, and the plurality of the clamping assemblies are connected by connecting pieces.
[0020] The multiple clamping components on the sides of the square frame structure are connected by connecting parts, so that the above clamping components can be opened and closed synchronously, which is beneficial to the installation and removal of ultra-thin circuit boards, and further helps to reduce production and processing time and improve production and processing efficiency.
[0021] Preferably, the connecting member is connected to the clamping block.
[0022] The connection between the connector and the clamp block is more convenient in force interaction, which reduces the work intensity of the staff, and can also reduce the stress of the connector and the clamp block, thereby increasing the service life of the connector.
[0023] Preferably, the supporting frame is a double-sided copper clad laminate.
[0024] Double-sided copper clad laminate can provide uniform current distribution, excellent conductivity, and disperse the heat generated during the electroplating process when ultra-thin circuit boards are electroplated, which is beneficial to uniform copper thickness during electroplating and reduce deformation and damage of PCB boards caused by thermal stress. It can also provide good physical support in other processes, which is beneficial to reduce the bending deformation of ultra-thin circuit boards, reduce the difficulty of production and processing, improve the quality of production and processing, and can be reused, which is beneficial to reduce production and processing costs.
[0025] Compared with the prior art, the beneficial effects of the utility model are:
[0026] Only one supporting frame and several clamping components are used, the structure is simple, and the ultra-thin circuit board can be fixed and disassembled conveniently and quickly, reducing the residual glue defective products generated by the need for gluing, and improving the production and processing quality. At the same time, its structural design can also enable the utility model to be reused in the same ultra-thin circuit board manufacturing process, reducing the difficulty and cost of production and processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 The figure is a schematic diagram of the overall structure of a multi-purpose auxiliary tool for ultra-thin circuit boards.
[0029] Figure 2 A schematic diagram of the structure of the clamping assembly.
[0030] Figure 3 It is a schematic diagram of the structure of an ultra-thin circuit board.
[0031] Icons: 10-ultra-thin circuit board; 11-tool hole; 20-support frame; 21-conducting hole; 22-rectangular through hole; 30-clamping assembly; 31-clamping seat; 32-clamping block; 33-rotating rod; 331-limiting member; 34-elastic member; 40-connecting member; DETAILED DESCRIPTION
[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.
[0033] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0035] In this embodiment, please refer to Figure 1 As shown, the utility model provides a multi-purpose auxiliary tool for ultra-thin circuit boards, which includes a supporting frame 20 and a plurality of clamping components 30 spaced apart around the supporting frame 20. The shape and size of the supporting frame 20 match the ultra-thin circuit board 10. When installing the ultra-thin circuit board 10, the surface to be processed of the ultra-thin circuit board 10 is opposite to the supporting frame 20 and is placed between the supporting frame 20 and the clamping components 30. The surface to be processed of the ultra-thin circuit board 10 is exposed from the rectangular through hole 22 of the supporting frame 20, so as to facilitate the processing of the ultra-thin circuit board 10 in different processes.
[0036] The clamping assembly 30 includes a clamping seat 31, a clamping block 32, and an elastic member 34; the clamping seat 31 is two columns spaced apart on the side of the supporting frame 20, one end of the clamping block 32 is rotatably connected to the clamping seat 31, and the other end extends to the inner side of the supporting frame 20. In the present embodiment, the clamping block 32 and the clamping seat 31 are rotatably connected similar to a hinge. It can be understood that the clamping seat 31 can also be a sphere or an irregular body, and it only needs to be rotatably connected to the clamping block 32; the clamping block 32 is also elastically connected to the clamping seat 31 through the elastic member 34, so that the clamping block 32 is pressed toward the supporting frame 20 to adjust and fix the position of the ultra-thin circuit board 10.
[0037] In this embodiment, please refer to Figure 1 and Figure 3As shown, a plurality of via holes 21 are also provided at intervals between the edge of the support frame 20 and the edge of the rectangular through hole 22. The via holes 21 are used for the ultra-thin circuit board 10 to conduct electricity between the support frame 20 and the ultra-thin circuit board 10 through the conductive material covering the via holes 21 during the previous immersion gold process in the electroplating process, and at the same time can play a positioning role when fixing the ultra-thin circuit board 10. The shape, size, position and quantity of the via holes 21 are the same as those of the tool holes 11 on the ultra-thin circuit board 10.
[0038] In this embodiment, please refer to Figure 2 As shown, the clamping assembly 30 further includes a rotating rod 33. The rotating rod 33 passes through the clamping seat 31 and the clamping block 32, realizing a hinge-like rotational connection between the clamping block 32 and the clamping seat 31.
[0039] Specifically, an elastic member 34 is also sleeved on the rotating rod 33. In this embodiment, the elastic member 34 is a torsion spring. Both ends of the torsion spring extend a certain distance. One end abuts against the clamping block 32, and the other end abuts against the support frame 20, for pressing the clamping block 32 towards the support frame 20. It can be understood that both ends of the torsion spring need to press the clamping block 32 towards the support frame 20 instead of opening it.
[0040] In addition, the elastic member 34 can also be an elastic sheet or other components that can press the clamping block 32 towards the support frame 20.
[0041] Specifically, limiting members 331 are also provided at both ends of the rotating rod 33. The limiting members 331 can fix the position of the rotating rod 33, reduce the offset of the rotating rod 33 and the resulting offset of the clamping block 32. At the same time, at least one of the limiting members 331 at both ends is detachable, facilitating the disassembly and installation of the clamping assembly 30.
[0042] The clamping block 32 in the clamping assembly 30 has an "L" - shaped structure; the short end of the clamping block 32 is connected to the clamping seat 31. When clamping the ultra-thin circuit board 10, a certain space can be left for the ultra-thin circuit board 10 with a corresponding thickness, so that the clamping block 32 can rotate without being blocked by the ultra-thin circuit board 10, and finally the ultra-thin circuit board 10 is fixed between the clamping block 32 and the support frame 20; when the clamping assembly 30 rotates and presses, the short end can push the ultra-thin circuit board 10 to align with the edge of the support frame 20; the long end extends towards the inside of the support frame 20 for clamping the ultra-thin circuit board 10.
[0043] In addition, the clamping block 32 can also have a "冖" - shaped structure, so as to be able to leave a certain space for the ultra-thin circuit board 10 with a corresponding thickness when clamping the ultra-thin circuit board 10, so that the clamping block 32 can rotate without being blocked by the ultra-thin circuit board 10, and finally the ultra-thin circuit board 10 is fixed between the clamping block 32 and the support frame 20, and the overall thickness needs to meet the requirements of the production equipment.
[0044] Specifically, the extension length of the clamp block 32 is smaller than the vertical distance from the edge of the rectangular through hole 22 to the edge of the support frame 20 , so that the clamp block 32 will not block the exposed processing area of the rectangular through hole 22 when clamping the ultra-thin circuit board 10 .
[0045] In this embodiment, please refer to Figure 1 As shown, the support frame 20 is a square frame structure, and a plurality of clamping assemblies 30 are spaced apart on each side of the support frame 20. The plurality of clamping assemblies 30 are connected by a connecting member 40, and the connecting member 40 is rod-shaped. When the clamping assemblies 30 are opened and closed, these clamping assemblies 30 can be opened and closed synchronously.
[0046] In addition, the connector 40 may also be a plate-shaped structure, and may also be pressed together with the clamping block 32 to fit the ultra-thin circuit board 10 , so as to enable the clamping assembly 30 on one side of the supporting frame 20 to open and close synchronously.
[0047] Specifically, the connecting member 40 is connected to the clamping block 32 of the clamping assembly 30 .
[0048] The specific application process of the utility model is as follows:
[0049] The staff opens the clamping assembly 30 on the side of the support frame 20, puts the surface to be processed of the ultra-thin circuit board 10 opposite to the support frame 20, puts it between the support frame 20 and the clamping block 32, releases the clamping block 32 of the clamping assembly 30, and presses the clamping block 32 against the ultra-thin circuit board 10. When the clamping block 32 rotates, the ultra-thin circuit board 10 will not block the clamping block 32, and the edge of the ultra-thin circuit board 10 and the edge of the support frame 20 are pushed to align by the short end of the clamping block. Finally, the ultra-thin circuit board 10 is fixed between the clamping assembly 30 and the support frame 20, and the ultra-thin circuit board 10 and the multi-purpose auxiliary tool of the ultra-thin circuit board are processed as a whole. The multi-purpose auxiliary tool of the ultra-thin circuit board can be used in the processes of grinding, gold plating, horizontal line processing, electroplating, development, etching, AOI, solder mask grinding, spraying, pre-baking, development, text printing, post-curing, etc.
[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-purpose auxiliary tool for ultra-thin circuit boards, characterized in that: include: A supporting frame, the supporting frame matches the ultra-thin circuit board, the ultra-thin circuit board is placed on the supporting frame, and a rectangular through hole is provided in the center of the supporting frame; A plurality of clamping assemblies are arranged at intervals around the supporting frame, and the clamping assemblies include: a clamping seat arranged on the side of the supporting frame, a clamping block rotatably arranged on the clamping seat and extending toward the inner side of the supporting frame, the clamping block is elastically connected to the clamping seat through an elastic member, and the ultra-thin circuit board is fixed between the supporting frame and the clamping block.
2. A multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 1, characterized in that: The supporting frame is also provided with a plurality of conducting holes adjacent to the rectangular through holes, and the plurality of conducting holes match the ultra-thin circuit board.
3. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 1, characterized in that: The clamping assembly further comprises a rotating rod penetrating the clamping seat and the clamping block, and the clamping block is rotatably connected to the clamping seat via the rotating rod.
4. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 3, characterized in that: The elastic member is a torsion spring, which is sleeved on the rotating rod. One end of the elastic member abuts against the supporting frame, and the other end abuts against the clamping block.
5. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 3, characterized in that: Limiting pieces are also provided at both ends of the rotating rod, and at least one of the limiting pieces is detachably connected to the rotating rod.
6. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 1, characterized in that: The clamp block is an "L"-shaped structure, with the longer end thereof extending toward the inner side of the supporting frame.
7. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 6, characterized in that: When the clamping assembly clamps the ultra-thin circuit board, the extension length of the clamping block is less than the vertical distance from the edge of the rectangular through hole to the edge of the supporting frame.
8. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 1, characterized in that: The supporting frame is a square frame structure, and a plurality of the clamping components are arranged on four sides of the square frame structure, and the plurality of the clamping components are connected by connecting pieces.
9. The multi-purpose auxiliary tool for ultra-thin circuit boards according to claim 8, characterized in that: The connecting piece is connected to the clamping block.
10. A multi-purpose auxiliary tool for ultra-thin circuit boards according to any one of claims 1 to 9, characterized in that: The supporting frame is a double-sided copper-clad laminate.