PCB clamping mechanism
By designing a PCB clamping mechanism comprising a base plate, a motion module and an adjustment module, and using a toggle clamp and a cam plate to achieve multi-point clamping, the problem of unstable clamping in the existing technology is solved, and stable fixation and protection of the PCB board is achieved.
Patent Information
- Application Number
- CN202422514967.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing PCB clamping mechanisms are unable to achieve multi-point synchronous clamping, resulting in offset and uneven force during the clamping process, which can easily scratch or damage the PCB board.
A PCB clamping mechanism is designed, which includes a base plate, a motion module and an adjustment module. The toggle clamp drives the cam plate and the X-axis slide rail to achieve multi-point clamping. The floating spring and the limit slot provide buffering and positioning, ensuring the stability and safety of the clamping process.
It realizes multi-point synchronous clamping of PCB boards to prevent deviation and damage. It has a simple structure, strong applicability, and is suitable for PCB boards of various specifications.
Smart Images
Figure CN223322234U_ABST
Abstract
Description
Technical Field
[0001] The utility model is applied to the technical field of PCB fixing, and particularly relates to a PCB clamping mechanism. Background Art
[0002] PCBs, as a crucial component of various electronic products, possess strong integration capabilities. Various functional components are interconnected and interconnected through PCBs, enabling various functions. During PCB production, assembly, and testing, the small size of these components necessitates precise securing of the PCBs to prevent vibration and shifting. Currently, traditional clamps are primarily used to clamp PCBs on both sides. This method is suitable for PCBs with parallel sides. However, for PCBs with deflections or arcs, these clamps can only clamp at two sides, not at multiple points. This can lead to shifting during the clamping process, and the clamping force is uneven, which can easily scratch or damage the PCB. Designing a PCB clamping mechanism with a simple structure, easy operation, and the ability to simultaneously clamp the PCB at multiple points could address these issues. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a PCB clamping mechanism which has a simple structure, is easy to operate and can realize multi-point synchronous clamping of the PCB.
[0004] The technical solution adopted by the present utility model is as follows: the present utility model includes a base plate, a motion module and several adjustment modules, the motion module includes a toggle clamp, a Y-axis slide rail and a cam plate, the movable end of the Y-axis slide rail is arranged in the middle of the base plate, two groups of cam plates are connected to the two ends of the Y-axis slide rail main body, the adjustment module includes an X-axis slide rail, a floating plate and a clamping plate, the X-axis slide rail is arranged on both sides of the two groups of cam plates, the floating plate and the clamping plate are respectively connected to the two movable ends of the X-axis slide rail, a cam is provided on one side of the clamping plate, and sliding inclined grooves are provided on both sides of the cam plate, the cam is slidably matched with the sliding inclined grooves, the toggle clamp is arranged at one end of the base plate, the movable end of the toggle clamp is connected to the proximal cam plate, and the toggle clamp drives the cam plate to move back and forth so that the clamping plate and the floating plate clamp or release the PCB board.
[0005] Furthermore, a stopper is provided at one end of the X-axis slide rail away from the Y-axis slide rail, and a plurality of floating springs are provided between the stopper and the floating plate. The floating plate floats with the stopper through the floating springs.
[0006] Furthermore, a PCB limiting groove is provided on the side of the floating plate close to the clamping plate, and a clamping block is provided on the side of the clamping plate corresponding to the limiting groove. The clamping block and the PCB limiting groove are conformally matched, and several clamping points on the PCB board are matched with several of the clamping blocks and several of the PCB limiting grooves.
[0007] Furthermore, a plurality of support columns are provided on the upper surface of the bottom plate, and the plurality of support columns cooperate with the PCB board.
[0008] Furthermore, a plurality of positioning posts are provided on the upper surface of the bottom plate, and the plurality of positioning posts are positioned and matched with the PCB board.
[0009] Furthermore, a plurality of limit blocks are provided on the upper surface of the bottom plate, and a floating limit groove is provided on the floating plate, and the floating limit groove cooperates with the limit blocks in a limiting manner.
[0010] Furthermore, the base plate is provided with a plurality of positioning guide sleeves.
[0011] Furthermore, the base plate is provided with a plurality of mask guide columns.
[0012] The beneficial effects of the present invention are as follows: the toggle clamp drives the two groups of cam plates to be pushed out or restored by rotating in different directions, and the cam slides in the sliding inclined groove on the cam plate, thereby converting the longitudinal movement into the lateral movement of the clamping plate on the X-axis slide rail, so that the clamping block and the PCB limit groove are moved closer to or separated from each other, thereby clamping the positioning points on the PCB board, and can simultaneously achieve clamping of four groups of positioning points, which can adapt to PCB boards of various specifications. At the same time, a buffer mechanism and a limit mechanism are also provided to prevent the PCB board from being damaged due to overpressure during the clamping process. The structure is simple and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional view of the utility model;
[0014] Figure 2 It is a schematic view of another state of the utility model;
[0015] Figure 3 is a stereoscopic view of the motion module;
[0016] Figure 4 3D is a three-dimensional view of the adjustment module. DETAILED DESCRIPTION
[0017] like Figures 1 to 4As shown, in this embodiment, the utility model includes a base plate 1, a motion module 2 and several adjustment modules 3, the motion module 2 includes a toggle clamp 4, a Y-axis slide rail 5 and a cam plate 6, the movable end of the Y-axis slide rail 5 is arranged in the middle of the base plate 1, and two groups of cam plates 6 are connected to the two ends of the main part of the Y-axis slide rail 5. The adjustment module 3 includes an X-axis slide rail 7, a floating plate 8 and a clamping plate 9. The X-axis slide rail 7 is arranged on both sides of the two groups of cam plates 6, and the floating plate 8 and the clamping plate 9 are respectively connected to the two movable ends of the X-axis slide rail 7. A cam 10 is provided on one side of the clamping plate 9, and sliding inclined grooves 11 are provided on both sides of the cam plate 6. The cam 10 slides with the sliding inclined grooves 11. The toggle clamp 4 is arranged at one end of the base plate 1, and the movable end of the toggle clamp 4 is connected to the proximal cam plate 6. The toggle clamp 4 drives the cam plate 6 to move back and forth so that the clamping plate 9 and the floating plate 8 clamp or release the PCB board. It can be seen that the U-axis slide rail 5 can drive two groups of the cam plates 6 at the same time. The sliding inclined grooves 11 are provided on both sides of the cam plates 6, which can clamp or release the four groups of clamping plates 9 at the same time. Through multi-point clamping, the PCB board can be fixed more stably, with a simple structure and strong applicability.
[0018] like Figure 2 and Figure 4 As shown, in this embodiment, a stopper 12 is provided at one end of the X-axis slide rail 7 away from the Y-axis slide rail 5. A plurality of floating springs 13 are provided between the stopper 12 and the floating plate 8. The floating plate 8 floats in engagement with the stopper 12 via the floating springs 13. As can be seen, during the pressing of the clamping plate 9 and the floating plate 8, the floating springs 13 provide a buffering effect, preventing overpressure.
[0019] like Figure 2 and Figure 4 As shown, in this embodiment, a PCB limiting groove 14 is provided on the side of the floating plate 8 adjacent to the clamping plate 9, and a clamping block 15 is provided on the side of the clamping plate 9 corresponding to the limiting groove 14. The clamping block 15 and the PCB limiting groove 14 are conformally matched, and a number of clamping points on the PCB board are matched with the clamping blocks 15 and the PCB limiting grooves 14. Thus, the PCB limiting grooves 14 can be used to pre-position the positioning points on the PCB board, preventing deviation during the pressing process and enabling the clamping block 15 to perform stable pressing and fixing.
[0020] like Figure 1 and Figure 2 As shown, in this embodiment, the upper end surface of the base plate 1 is provided with a plurality of support columns 16, and the plurality of support columns 16 cooperate with the PCB board. Thus, it can be seen that the plurality of support columns 16 can realize the support of the PCB board.
[0021] like Figure 1 and Figure 2 As shown, in this embodiment, the upper end surface of the base plate 1 is provided with a plurality of positioning posts 17, and the plurality of positioning posts 17 are positioned and matched with the PCB board. Thus, the plurality of positioning posts 17 can pre-position the PCB board before pressing it to prevent it from shifting during the pressing process.
[0022] like Figure 4 As shown, in this embodiment, the upper end surface of the bottom plate 1 is provided with a plurality of limit blocks 18, and the floating plate 8 is provided with floating limit grooves 19, which cooperate with the limit blocks 18. It can be seen that the floating limit grooves 19 can prevent the pressing block 15 from overpressing the PCB board.
[0023] like Figure 1 and Figure 2 As shown, in this embodiment, the base plate 1 is provided with a plurality of positioning guide sleeves 20. Thus, the positioning guide sleeves 20 can accurately position the base plate 1 on the operating table.
[0024] like Figure 1 and Figure 2 As shown, in this embodiment, the base plate 1 is provided with a plurality of mask guide posts 21. It can be seen that the plurality of mask guide posts 21 can realize the positioning of the loading and unloading mechanism and the clamping mechanism.
[0025] The working principle of the present utility model is as follows: before the equipment is started, the loading and unloading mechanism or manual work places the PCB board to be clamped and fixed on the upper end of the base plate 1. After preliminary positioning is achieved by the plurality of positioning columns 17, the plurality of positioning points on the lower end surface of the PCB board fall into the plurality of PCB limiting grooves 14. The cam plate 6 is driven to move longitudinally by rotating the toggle clamp 4, the cam 10 slides in the sliding inclined groove 11, and the plurality of clamping plates 9 move laterally at the same time, so that the plurality of clamping blocks 15 cooperate with the PCB limiting grooves 14 to clamp the positioning points of the PCB board. After completing the clamping and positioning, the toggle clamp 4 is driven to rotate in the opposite direction, so that the plurality of cam plates 6 and the plurality of clamping plates 9 return to their initial positions. The PCB board is replaced and the above steps are repeated to achieve multi-point clamping and fixation of the PCB board.
[0026] Although the embodiments of the present invention are described with practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.
Claims
1. A PCB clamping mechanism, comprising a base plate (1), a motion module (2) and a plurality of adjustment modules (3), characterized in that: The motion module (2) includes a toggle clamp (4), a Y-axis slide rail (5) and a cam plate (6), wherein the movable end of the Y-axis slide rail (5) is arranged in the middle of the base plate (1), and two groups of the cam plates (6) are connected to both ends of the main part of the Y-axis slide rail (5), and the adjustment module (3) includes an X-axis slide rail (7), a floating plate (8) and a clamping plate (9), and the two groups of the cam plates (6) are provided with the X-axis slide rail (7) on both sides, and the floating plate (8) and the clamping plate (9) are respectively connected to the X-axis slide rail. (7) The two movable ends are connected, a cam (10) is provided on one side of the clamping plate (9), and sliding inclined grooves (11) are provided on both sides of the cam plate (6), and the cam (10) and the sliding inclined grooves (11) are slidably matched, and the elbow clamp (4) is provided at one end of the base plate (1), and the movable end of the elbow clamp (4) is connected to the cam plate (6) at the proximal end, and the elbow clamp (4) drives the cam plate (6) to move back and forth so that the clamping plate (9) and the floating plate (8) clamp or release the PCB board.
2. A PCB clamping mechanism according to claim 1, characterized in that: A stopper (12) is provided at one end of the X-axis slide rail (7) away from the Y-axis slide rail (5), and a plurality of floating springs (13) are provided between the stopper (12) and the floating plate (8). The floating plate (8) floats and cooperates with the stopper (12) through the plurality of floating springs (13).
3. A PCB clamping mechanism according to claim 2, characterized in that: A PCB limiting groove (14) is provided on one side of the floating plate (8) close to the clamping plate (9), and a clamping block (15) is provided on the side of the clamping plate (9) corresponding to the limiting groove (14). The clamping block (15) and the PCB limiting groove (14) are conformally matched, and a plurality of clamping points on the PCB board are matched with a plurality of the clamping blocks (15) and a plurality of the PCB limiting grooves (14).
4. The PCB clamping mechanism according to claim 1, characterized in that: A plurality of support columns (16) are provided on the upper end surface of the bottom plate (1), and the plurality of support columns (16) cooperate with the PCB board.
5. The PCB clamping mechanism according to claim 1, characterized in that: A plurality of positioning posts (17) are provided on the upper end surface of the bottom plate (1), and the plurality of positioning posts (17) are positioned and matched with the PCB board.
6. The PCB clamping mechanism according to claim 1, characterized in that: The upper end surface of the bottom plate (1) is provided with a plurality of limit blocks (18), and the floating plate (8) is provided with a floating limit groove (19), and the floating limit groove (19) is in limiting cooperation with the limit blocks (18).
7. The PCB clamping mechanism according to claim 1, characterized in that: The base plate (1) is provided with a plurality of positioning guide sleeves (20).
8. The PCB clamping mechanism according to claim 1, characterized in that: The bottom plate (1) is provided with a plurality of mask guide columns (21).