Fine-adjustable PCB (Printed Circuit Board) positioning pin pneumatic clamping structure

Abstract

The utility model discloses a fine-adjustable PCB positioning pin pneumatic clamp structure, which is characterized in that a base is internally provided with step surfaces in parallel, the inner sides of the step surfaces are provided with mounting grooves in parallel, fine adjustment assemblies are arranged in the mounting grooves, pneumatic clamp main body assemblies are arranged in the fine adjustment assemblies in a relatively adjustable manner, and the upper ends of the fine adjustment assemblies are in contact connection with limiting assemblies; the side face of the fine adjustment assembly is fixedly connected with the base. According to the utility model, a worker can accurately carry out fine adjustment on the position of the air clamp main body assembly through the adjustment operation on a precision screw in the fine adjustment assembly, so that the positioning accuracy can be improved to a micron level or even a smaller level, the positioning accuracy of a PCB in the machining process is greatly improved, and the production efficiency is improved. And high-quality completion of subsequent processing procedures such as etching and welding is ensured.

Description

Technical Field

[0001] This utility model relates to the field of PCB processing equipment technology, specifically to a finely adjustable PCB positioning pin pneumatic clamp structure. Background Technology

[0002] In the PCB drilling process, precise fixing of the PCB board is crucial to ensuring processing quality and accuracy. Positioning is typically achieved using locating pins or vacuum suction. Therefore, workers need to periodically check and adjust the position of the locating pins. Currently used PCB locating pin pneumatic clamps are difficult to fine-tune, or even impossible to fine-tune. After installation, the clamping position of the pins is often fixed or can only be roughly adjusted, making precise micro-displacement adjustments difficult. This can easily lead to inaccurate positioning of the PCB board during processing, affecting the processing accuracy of subsequent processes such as deviations in etched circuits and inaccurate component soldering positions.

[0003] Therefore, it is necessary to design a finely adjustable PCB positioning pin pneumatic clamp structure, which can effectively solve the problem of the existing positioning pin pneumatic clamp being non-adjustable. By periodically checking and adjusting the clamping position of the positioning pin, the positioning accuracy of the PCB board during the drilling process can be significantly improved, thereby enhancing the overall efficiency and quality, and becoming a direction for further improvement. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a finely adjustable PCB positioning pin pneumatic clamp structure, characterized in that it includes a base, a stepped surface, a mounting groove, a pneumatic clamp main body assembly, a limiting assembly, and a fine-tuning assembly. The base has a stepped surface arranged parallel to each other, and the inner side of the stepped surface has a mounting groove arranged parallel to each other. The mounting groove has a fine-tuning assembly, and the pneumatic clamp main body assembly is relatively adjustable inside the fine-tuning assembly. The upper end of the fine-tuning assembly is in contact with the limiting assembly, and the side of the fine-tuning assembly is relatively fixedly connected to the base.

[0005] Preferably, the fine-tuning component includes a precision screw, a slanted pin, an adjusting block, and a mounting block. Adjustable precision screws are inserted opposite each other on two adjacent sides of the base. The inner side of one of the precision screws is adapted to connect with the slanted pin. The slanted pin passes through the mounting block and abuts against the adjusting block. The mounting block is located in the mounting groove, and one side of the mounting block is connected to the other precision screw. The side of the adjusting block communicates with the base. A pneumatic clamp main assembly is movably disposed within the adjusting block.

[0006] Preferably, the air clamp main body assembly includes an air passage, a sleeve, and a clamp. An air passage is provided between the adjusting block and the sleeve. The air passage is connected to the side of the adjusting block and into the base. The base is connected to an external source through an air pipe connector. An adjustable clamp is coaxially provided inside the sleeve. The upper end of the clamp is higher than the upper end of the adjusting block.

[0007] Preferably, the limiting component includes a limiting cover plate, limiting screw holes, and glass beads A. Limiting screw holes are provided at the four corners of the stepped surface. Fixing bolts are screwed into the limiting screw holes to fix the limiting cover plate to the stepped surface. Protruding glass beads A are evenly distributed around the clamp on the adjusting block.

[0008] Preferably, the limiting cover plate is provided with a clearance hole, which is opposite to the position of the chuck and the glass bead A.

[0009] Preferably, the base has mounting holes at its four corners, and the mounting holes are fixedly connected to the external workbench by fixing bolts.

[0010] Preferably, adjustment holes A are provided on two adjacent sides of the base, and adjustment holes B are provided in the vertical direction of adjustment holes A. Adjustment holes B are connected to adjustment holes A, and an adjustable precision screw is provided in adjustment hole A.

[0011] Preferably, the front part of the sloping top column is a square column.

[0012] Preferably, glass beads B and glass beads C are respectively provided on two adjacent sides of the mounting block. The outer side of glass bead B can slide relative to the base, and the outer side of glass bead C can slide relative to the adjusting block. The positions of glass beads B and glass beads C are arranged relative to the positions of the precision screw.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) This utility model features a base with a stepped surface running parallel to each other, and a mounting groove running parallel to each other on the inner side of the stepped surface. A fine-tuning component is installed in the mounting groove, and a pneumatic clamp main body component is adjustable within the fine-tuning component. The upper end of the fine-tuning component is in contact with the limiting component, and the side of the fine-tuning component is fixedly connected to the base. Through the adjustment of the precision screws in the fine-tuning component, the operator can precisely adjust the position of the pneumatic clamp main body component, improving the positioning accuracy to micrometers or even smaller levels. This greatly improves the positioning accuracy of the PCB board during processing, ensuring high-quality completion of subsequent processing steps such as etching and welding.

[0015] (2) The fine-tuning component of this utility model enables the device to easily meet the PCB board fixing requirements of different specifications and sizes. There is no need to frequently change different clamps. As long as the position of the positioning pin air clamp is checked and adjusted regularly, the equipment investment cost and production preparation time are reduced, the production efficiency is improved, and the continuity and stability of production are guaranteed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the base structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the present invention;

[0020] Figure 5 This is a schematic diagram of the inclined top column of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 5 As shown, a finely adjustable PCB positioning pin pneumatic clamp structure includes a base 1, a stepped surface 2, a mounting groove 3, a pneumatic clamp main body assembly 4, a limiting assembly 5, a fine-tuning assembly 6, a precision screw 7, an inclined top post 8, an adjusting block 9, a mounting block 10, an air passage 11, a sleeve 12, a chuck 13, a limiting cover plate 14, a limiting screw hole 15, a glass bead A16, a mounting hole 17, an adjusting hole A18, an adjusting hole B19, a glass bead B20, and a glass bead C21.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1 to 5 As shown, mounting holes 17 are provided at the four corners of the base 1, and the mounting holes 17 are fixedly connected to the external workbench by fixing bolts. A stepped surface 2 is provided parallel inside the base 1 to facilitate the installation of the limiting cover plate 14.

[0026] A mounting groove 3 is provided parallel to the inner side of the stepped surface 2. A fine-tuning component 6 is provided in the mounting groove 3. An air clamp main body component 4 is provided relatively adjustablely in the fine-tuning component 6. The air clamp main body component 4 can slide smoothly along the length and width of the base 1 to change its position. The upper end of the fine-tuning component 6 is in contact with the limiting component 5, and the side of the fine-tuning component 6 is fixedly connected to the base 1.

[0027] The fine-tuning component 6 includes a precision screw 7, a slanted top post 8, an adjusting block 9, and a mounting block 10. Adjustable precision screws 7 are inserted through adjacent sides of the base 1. Specifically, adjusting holes A18 are opened opposite each other on adjacent sides of the base 1. Adjusting holes B19 are opened vertically to the adjusting holes A18. Adjusting holes B19 are connected to adjusting holes A18. Adjustable precision screws 7 are installed in adjusting holes A18. The precision screws 7 can be flexibly rotated and effectively fine-tuned by the cooperation of adjusting holes A18 and adjusting holes B19.

[0028] One of the precision screws 7 is fitted and connected to the inclined top post 8 on its inner side. The inclined top post 8 passes through the mounting block 10 and abuts against the adjusting block 9. The mounting block 10 is located in the mounting groove 3. The side of the adjusting block 9 is connected to the base 1. Figure 2 and Figure 5 As shown, the front part of the inclined top column 8 is a square column, and the inner side of the adjustment hole B19 where the inclined top column 8 is installed is also square. This can not only limit the inclined top column 8 to prevent it from flipping, but also enhance the smoothness of the translation of the inclined top column 8.

[0029] One side of the mounting block 10 is connected to another precision screw 7, which is connected to the base 1 and the air passage 11.

[0030] The fine-tuning component 6 enables this device to easily meet the fixing requirements of PCB boards of different specifications and sizes without the need for frequent changes of different clamps. Only the position of the positioning pin pneumatic clamp needs to be checked and adjusted periodically, which reduces equipment investment costs and production preparation time, improves production efficiency, and ensures the continuity and stability of production.

[0031] An air clamp main body assembly 4 is movably installed inside the adjusting block 9. The air clamp main body assembly 4 includes an air passage 11, a sleeve 12 and a clamp 13. An air passage 11 is left between the adjusting block 9 and the sleeve 12. The air passage 11 is connected to the side of the adjusting block 9 and into the base 1. The base 1 is connected to an external source through an air pipe connector.

[0032] An adjustable chuck 13 is coaxially provided inside the sleeve 12. The chuck 13 is arranged in a circle, and the upper end of the chuck 13 is higher than the upper end of the adjusting block 9.

[0033] The sleeve 12 divides the air passage 11 into upper and lower chambers. When gas is introduced into the lower end of the air passage 11, the sleeve 12 moves upward under the action of air pressure, squeezing the chuck 13 and thus clamping the positioning pin. When gas is introduced into the upper end of the air passage 11, the sleeve 12 moves downward under the action of air pressure, releasing the chuck 13 and thus releasing the positioning pin.

[0034] The limiting assembly 5 includes a limiting cover plate 14, limiting screw holes 15, and glass beads A16. Limiting screw holes 15 are provided at the four corners of the stepped surface 2. Fixing bolts are screwed into the limiting screw holes 15 to fix the limiting cover plate 14 to the stepped surface 2. Raised glass beads A16 are evenly distributed around the chuck 13 on the adjusting block 9. The limiting cover plate 14 has clearance holes, which are positioned opposite to the chuck 13 and the glass beads A16.

[0035] Glass beads B20 and C21 are respectively provided on two adjacent sides of the mounting block 10. The outer side of glass bead B20 can slide relative to the base 1, and glass bead C21 can slide relative to the adjusting block 9. The positions of glass beads B20 and C21 are arranged relative to the position of the precision screw 7, thereby limiting the movement of the air clamp main body assembly 4 in the X and Y directions.

[0036] The working principle of this utility model is as follows:

[0037] According to the position and size of the mounting hole 17 at the bottom of the base 1, the base 1 is firmly installed on the workbench. During the installation process, tools such as a level can be used to ensure that the base 1 is in a horizontal state after installation, so as to ensure the stability and accuracy of the air clamp main component 4 in subsequent use.

[0038] Tightening the precision screw 7 in the X direction from the adjustment hole B19 can push the inclined pin 8 to move in the negative X direction, thereby pushing the air clamp main body assembly 4 to move in the negative X direction.

[0039] Loosen the precision screw 7 in the X direction from the adjustment hole B19. Under the elastic force of the glass bead B20, the air clamp main body assembly 4 can be pushed to move in the positive X direction, and the range of movement is controllable.

[0040] Tightening the precision screw 7 in the Y direction from the adjustment hole A18 can push the inclined pin 8 to move in the negative Y direction, thereby pushing the air clamp main body assembly 4 to move in the negative Y direction;

[0041] Loosen the precision screw 7 in the Y direction from the adjustment hole A18. Under the elastic force of the glass ball C21, the air clamp main body assembly 4 can be pushed to move in the positive Y direction, and the range of movement can also be controlled.

[0042] This invention allows workers to precisely fine-tune the position of the pneumatic clamp main component by adjusting the precision screw 7 in the fine-tuning component 6. This improves the positioning accuracy to the micrometer level or even smaller, greatly enhancing the positioning accuracy of the PCB board during processing and ensuring the high-quality completion of subsequent processing steps such as etching and welding.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, any modifications, equivalent changes, or improvements made in accordance with the claims of this utility model shall still fall within the scope of this utility model.

Claims

1. A finely adjustable PCB positioning pin pneumatic clamp structure, characterized in that: The device includes a base (1), a stepped surface (2), a mounting groove (3), an air clamp main body assembly (4), a limiting assembly (5), and a fine-tuning assembly (6). The stepped surface (2) is provided parallel inside the base (1). The mounting groove (3) is provided parallel inside the stepped surface (2). The fine-tuning assembly (6) is provided inside the mounting groove (3). The air clamp main body assembly (4) is provided relatively adjustable inside the fine-tuning assembly (6). The upper end of the fine-tuning assembly (6) is in contact with the limiting assembly (5). The side of the fine-tuning assembly (6) is fixedly connected to the base (1).

2. The adjustable PCB positioning pin pneumatic clamp structure according to claim 1, characterized in that: The fine-tuning component (6) includes a precision screw (7), an inclined top post (8), an adjusting block (9), and a mounting block (10). Adjustable precision screws (7) are inserted opposite each other on the two adjacent sides of the base (1). The inner side of one of the precision screws (7) is adapted to connect with the inclined top post (8). The inclined top post (8) passes through the mounting block (10) and abuts against the adjusting block (9). The mounting block (10) is located in the mounting groove (3). One side of the mounting block (10) is connected to the other precision screw (7). The side of the adjusting block (9) is connected to the base (1). The air clamp main body component (4) is movably installed in the adjusting block (9).

3. The adjustable PCB positioning pin pneumatic clamp structure according to claim 2, characterized in that: The main body assembly (4) of the air clamp includes an air passage (11), a sleeve (12) and a clamp (13). An air passage (11) is provided between the adjusting block (9) and the sleeve (12). The air passage (11) is connected to the base (1) through the side of the adjusting block (9). The base (1) is connected to an external source through an air pipe connector. An adjustable clamp (13) is coaxially provided inside the sleeve (12). The upper end of the clamp (13) is higher than the upper end of the adjusting block (9).

4. The adjustable PCB positioning pin pneumatic clamp structure according to claim 3, characterized in that: The limiting component (5) includes a limiting cover plate (14), a limiting screw hole (15), and glass beads A (16). The four corners of the stepped surface (2) are provided with limiting screw holes (15). Fixing bolts are screwed into the limiting screw holes (15) to fix the limiting cover plate (14) to the stepped surface (2). The adjusting block (9) is evenly distributed with protruding glass beads A (16) around the clamp (13).

5. The adjustable PCB positioning pin pneumatic clamp structure according to claim 4, characterized in that: The limiting cover plate (14) is provided with a clearance hole, which is opposite to the position of the clamp (13) and the glass bead A (16).

6. The adjustable PCB positioning pin pneumatic clamp structure according to claim 4 or 5, characterized in that: The base (1) has mounting holes (17) at its four feet, and the mounting holes (17) are fixedly connected to the external workbench by fixing bolts.

7. The adjustable PCB positioning pin pneumatic clamp structure according to claim 6, characterized in that: The base (1) has adjustment holes A (18) on its two adjacent sides. An adjustment hole B (19) is provided in the vertical direction of the adjustment hole A (18). The adjustment hole B (19) is connected to the adjustment hole A (18). An adjustable precision screw (7) is provided in the adjustment hole A (18).

8. The adjustable PCB positioning pin pneumatic clamp structure according to claim 2, characterized in that: The front part of the sloping top column (8) is a square column.

9. The adjustable PCB positioning pin pneumatic clamp structure according to claim 7, characterized in that: The mounting block (10) is provided with glass beads B (20) and glass beads C (21) on two adjacent sides respectively. The outer side of the glass beads B (20) can slide relative to the base (1), and the glass beads C (21) can slide relative to the adjusting block (9). The positions of the glass beads B (20) and glass beads C (21) are set relative to the position of the precision screw (7).

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