Circuit board clamping plate device of automatic alignment exposure machine

Abstract

The utility model relates to the technical field of exposure machines, in particular to a circuit board clamping plate device of an automatic alignment exposure machine, which comprises a mounting box, a telescopic block is slidably connected to the middle of the inner wall of the mounting box, and one end of the telescopic block penetrates through one side of the mounting box and is fixedly connected with a fixing clamp. Two triangular blocks are fixedly connected to the other end of the telescopic block, rectangular openings are formed in the positions, close to the two sides of the telescopic block, of the mounting box correspondingly, connecting rods are rotationally connected into the rectangular openings, the two connecting rods are both in a bent shape, and one ends of the two connecting rods both stretch into the mounting box; and the other end is positioned outside the mounting box and close to the fixing clamp. The circuit board clamping device has the advantages that the triangular block moves to drive the two rolling wheels to rotate and simultaneously drive the two connecting rods to rotate, when the two connecting rods rotate, the ends, located on the outer wall of the installation box, of the two connecting rods move in a clamping mode and gradually close to the circuit board in a clamping mode, meanwhile, one side of the circuit board is flush with the fixing clamp, and the circuit board can return to the center position.

Description

Technical Field

[0001] The utility model relates to the technical field of exposure machines, in particular to a circuit board clamping device for an automatic alignment exposure machine. Background Art

[0002] With the rapid development of the electronic circuit board industry, in recent years, there has been an urgent need to improve the production capacity of exposure machines in the industry. At present, the general way to fix the circuit board during exposure is to use hanging PIN nails for fixation, that is, PIN nails are installed on the exposure platform, and the pre-drilled PIN holes on the circuit board are placed on the PIN nails of the exposure platform to fix the circuit board to the exposure platform.

[0003] In practical applications, when the PIN nails are used for a long time, they are prone to wear, which affects the alignment accuracy and needs to be replaced regularly. The existing circuit board fixing method requires the processing of PIN holes on the circuit board, and the size and position dimension accuracy of the PIN holes will also affect the alignment accuracy. The circuit board cannot be truly moved to the required position, resulting in low alignment efficiency and difficulty in achieving precise alignment. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a circuit board clamping device for an automatic alignment exposure machine, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above purpose, an embodiment of one aspect of the utility model provides a circuit board clamping device for an automatic alignment exposure machine, including an installation box. A telescopic block is slidably connected to the middle of the inner wall of the installation box. One end of the telescopic block penetrates through one side of the installation box and is fixedly connected to a fixed clamp. The other end of the telescopic block is fixedly connected to two triangular blocks. Rectangular openings are provided at positions on both sides of the installation box close to the telescopic block. Connecting rods are rotatably connected inside the rectangular openings. Both connecting rods are bent. One end of each of the two connecting rods extends into the installation box, and the other end is located outside the installation box near the fixed clamp. The fixed clamp is located between the two connecting rods. Circular anti-slip blocks are fixedly connected to the ends of the two connecting rods extending out of the installation box. Rollers are rotatably connected to the ends of the two connecting rods located inside the installation box. One side of each of the two rollers is in contact with one side of each of the two triangular blocks. A circuit board is arranged between the inside of the fixed clamp and the two circular anti-slip blocks. Two matching holes are provided on one side of the circuit board.

[0006] Preferably, a lead screw is rotatably connected inside the installation box. The lead screw is threadedly connected to the telescopic block. A motor is fixedly connected to the position on the outer wall of the installation box close to one end of the telescopic block. The output end of the motor is fixedly connected to one end of the lead screw.

[0007] The technical effects achieved by adopting the above solution are as follows: By using this solution, the motor can be used to drive the screw rod to rotate. The screw rod is threadedly connected to the telescopic block, and the telescopic block is slidably connected to the inner wall of the installation box to play a limiting role. When the screw rod rotates, it can drive the telescopic block to move linearly on the inner wall of the installation box, and at the same time drive the fixed clamp to move. The fixed clamp can push the circuit board to assist in correcting the position of the circuit board.

[0008] Preferably, according to any of the above solutions, strip-shaped sliding grooves are provided at positions on both sides of the inner wall of the installation box close to the telescopic block. Strip-shaped sliding blocks are fixedly connected to both sides of the outer wall of the telescopic block, and the two strip-shaped sliding blocks are respectively slidably connected to the two strip-shaped sliding grooves.

[0009] The technical effects achieved by adopting the above solution are as follows: By using this solution, the strip-shaped sliding block and the strip-shaped sliding groove can be used to make the telescopic block slidably connected to the inner wall of the installation box, playing a role in limiting the telescopic block, making the telescopic block more stable, and preventing random shaking, which may cause the circuit board to shake and affect the exposure effect.

[0010] Preferably, according to any of the above solutions, tension springs are fixedly connected to one ends of the two connecting rods close to the telescopic block, and one ends of the two tension springs are fixedly connected to positions on the inner wall of the installation box close to the telescopic block.

[0011] The technical effects achieved by adopting the above solution are as follows: By using this solution, the two tension springs can be used to drive one end of the two connecting rods to move. When the two triangular blocks are far away from the connecting rods, the two connecting rods can be driven to return to their positions, so that the other ends of the two connecting rods are separated for the subsequent placement of the circuit board.

[0012] Preferably, according to any of the above solutions, first support rods are fixedly connected to positions on the outer wall of the installation box close to the two connecting rods. The other ends of the two first support rods are fixedly connected with a plurality of second support rods. The positions of the plurality of second support rods correspond to each other. The two circular anti-slip blocks are located between the installation box and the second support rods.

[0013] The technical effects achieved by adopting the above solution are as follows: By using this solution, a plurality of second support rods can be used to support the circuit board, keeping the circuit board in a flat state, and cooperating with the fixed clamp to limit the circuit board to prevent the circuit board from shaking randomly.

[0014] The present utility model has the following advantages:

[0015] The circuit board clamping device of an automatic alignment exposure machine places the circuit board on several second support rods. At the same time, the side of the circuit board far away from the opening extends into the inside of the fixed clamp and is tightly abutted and flush with the inner wall of the circuit board. There is a chamfer inside the fixed clamp to facilitate the circuit board to extend into the fixed clamp. The motor drives the screw rod to rotate, and when the screw rod rotates, it can drive the telescopic block and two triangular blocks to move. Two rollers are in contact with the two triangular blocks. When the two triangular blocks move, they drive the two rollers to rotate, and at the same time drive the two connecting rods to rotate. When the two connecting rods rotate, the ends located on the outer wall of the installation box clamp and move, gradually closing in on the circuit board. At the same time, one side of the circuit board is flush with the fixed clamp, which can make the circuit board return to the centered position, facilitating the cooperation holes on one side of the circuit board to be adapted to the exposure machine, and greatly improving the stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the first view of the present invention;

[0017] Figure 2 is a schematic structural diagram of the second view of the present invention.

[0018] In the figure: 1 - installation box, 2 - roller, 3 - screw rod, 4 - motor, 5 - strip-shaped chute, 6 - telescopic block, 7 - strip-shaped slider, 8 - fixed clamp, 9 - second support rod, 10 - first support rod, 11 - circular anti-slip block, 12 - rectangular opening, 13 - connecting rod, 14 - tension spring, 15 - circuit board, 16 - cooperation hole, 17 - triangular block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present invention with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0020] As Figures 1 to 2 shown, a circuit board clamping device of an automatic alignment exposure machine includes an installation box 1. The middle part of the inner wall of the installation box 1 is slidably connected with a telescopic block 6. One end of the telescopic block 6 penetrates through one side of the installation box 1 and is fixedly connected with a fixed clamp 8. The other end of the telescopic block 6 is fixedly connected with two triangular blocks 17. Rectangular openings 12 are opened at positions on both sides of the installation box 1 close to the telescopic block 6. Connecting rods 13 are rotatably connected inside the rectangular openings 12. The two connecting rods 13 are both bent. One end of each of the two connecting rods 13 extends into the installation box 1, and the other end is located outside the installation box 1 near the fixed clamp 8. The fixed clamp 8 is located between the two connecting rods 13. Circular anti-slip blocks 11 are fixedly connected to the ends of the two connecting rods 13 extending outside the installation box 1. Rollers 2 are rotatably connected to the ends of the two connecting rods 13 located inside the installation box 1. One side of each of the two rollers 2 is in contact with one side of each of the two triangular blocks 17. A circuit board 15 is arranged between the inside of the fixed clamp 8 and the two circular anti-slip blocks 11. Two cooperation holes 16 are opened on one side of the circuit board 15.

[0021] As an alternative technical solution of the present utility model, a lead screw 3 is rotatably connected inside the installation box 1. The lead screw 3 is threadedly connected to the telescopic block 6. One end of the installation box 1 near the telescopic block 6 is fixedly connected with a motor 4, and the output end of the motor 4 is fixedly connected to one end of the lead screw 3. By using this solution, the motor 4 can be used to drive the lead screw 3 to rotate. The lead screw 3 is threadedly connected to the telescopic block 6, and the telescopic block 6 is slidably connected to the inner wall of the installation box 1 to play a limiting role. When the lead screw 3 rotates, it can drive the telescopic block 6 to move linearly on the inner wall of the installation box 1, and at the same time drive the fixed clamp 8 to move. The fixed clamp 8 can push the circuit board 15 to assist in correcting the position of the circuit board 15.

[0022] As an alternative technical solution of the present utility model, strip-shaped chutes 5 are opened on both sides of the inner wall of the installation box 1 near the telescopic block 6. Strip-shaped sliders 7 are fixedly connected to both sides of the outer wall of the telescopic block 6. The two strip-shaped sliders 7 are respectively slidably connected to the two strip-shaped chutes 5. By using this solution, the strip-shaped sliders 7 and the strip-shaped chutes 5 can be used to make the telescopic block 6 slidably connected to the inner wall of the installation box 1, playing a role in limiting the telescopic block 6, making the telescopic block 6 more stable, and preventing random shaking, which may cause the circuit board 15 to shake and affect the exposure effect.

[0023] As an alternative technical solution of the present utility model, one ends of the two connecting rods 13 near the telescopic block 6 are fixedly connected with tension springs 14. One ends of the two tension springs 14 are fixedly connected to the position of the inner wall of the installation box 1 near the telescopic block 6. By using this solution, the two tension springs 14 can be used to drive one ends of the two connecting rods 13 to move. When the two triangular blocks 17 are far away from the connecting rods 13, the two connecting rods 13 can be driven to return to their original positions, so that the other ends of the two connecting rods 13 are separated for the subsequent insertion of the circuit board 15.

[0024] As an alternative technical solution of the present utility model, first support rods 10 are fixedly connected to the outer wall of the installation box 1 near the two connecting rods 13. The other ends of the two first support rods 10 are fixedly connected with a plurality of second support rods 9. The positions of the plurality of second support rods 9 correspond to each other. Two circular anti-slip blocks 11 are located between the installation box 1 and the second support rods 9. By using this solution, the plurality of second support rods 9 can be used to support the circuit board 15, keeping the circuit board 15 in a flat state, and cooperating with the fixed clamp 8 to limit the circuit board 15 to prevent the circuit board 15 from shaking randomly.

[0025] For the circuit board clamping device of the automatic alignment exposure machine, the following steps are required during use:

[0026] 1) Place the circuit board 15 on the plurality of second support rods 9. At the same time, the side of the circuit board 15 far away from the opening extends into the inside of the fixed clamp 8 and is tightly abutted and flush with the inner wall of the circuit board 15;

[0027] 2) When the lead screw 3 rotates, it can drive the telescopic block 7 and the two triangular blocks 17 to move. The two rollers 2 are in contact with the two triangular blocks 17, and when the two triangular blocks 17 move, they drive the two rollers 2 to rotate;

[0028] 3) One side of the circuit board 15 is flush with the fixed clamp 8, which can center the circuit board 15 and facilitate the mating holes 16 on one side of the circuit board 15 to be adapted to the exposure machine.

[0029] In summary, when in use, the user places the circuit board 15 on several second support rods 9. At the same time, the side of the circuit board 15 away from the opening extends into the inside of the fixed clamp 8 and is tightly abutted and flush with the inner wall of the circuit board 15. There is a chamfer inside the fixed clamp 8 to facilitate the insertion of the circuit board 15. The motor 4 drives the lead screw 3 to rotate. When the lead screw 3 rotates, it can drive the telescopic block 7 and the two triangular blocks 17 to move. The two rollers 2 are in contact with the two triangular blocks 17, and when the two triangular blocks 17 move, they drive the two rollers 2 to rotate, and at the same time drive the two connecting rods 13 to rotate. When the two connecting rods 13 rotate, the ends located on the outer wall of the installation box 1 clamp and move, gradually closing in and clamping towards the circuit board 15. At the same time, one side of the circuit board 15 is flush with the fixed clamp 8, which can center the circuit board 15 and facilitate the mating holes 16 on one side of the circuit board 15 to be adapted to the exposure machine, and the stability is greatly improved.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board clamping device for an automatic alignment exposure machine, characterized in that: The invention comprises an installation box (1), wherein a telescopic block (6) is slidably connected to the middle of the inner wall of the installation box (1), one end of the telescopic block (6) passes through one side of the installation box (1) and is fixedly connected to a fixing clamp (8), and the other end of the telescopic block (6) is fixedly connected to two triangular blocks (17), and the installation box (1) is provided with rectangular openings (12) at positions close to both sides of the telescopic block (6), and a connecting rod (13) is rotatably connected inside the rectangular opening (12), and the two connecting rods (13) are both bent, and one end of the two connecting rods (13) extends into the interior of the installation box (1), and the other end is located at the installation box (1). A position near a fixing clamp (8) outside the box (1) is provided, the fixing clamp (8) being located between two connecting rods (13), one end of the two connecting rods (13) extending out of the installation box (1) being fixedly connected to a circular anti-sliding block (11), one end of the two connecting rods (13) located inside the installation box (1) being rotatably connected to a roller (2), one side of the two rollers (2) being in contact with one side of two triangular blocks (17) respectively, a circuit board (15) being provided inside the fixing clamp (8) and between the two circular anti-sliding blocks (11), one side of the circuit board (15) being provided with two matching holes (16).

2. The circuit board clamping device of the automatic alignment exposure machine according to claim 1, characterized in that: A screw rod (3) is rotatably connected inside the installation box (1), and the screw rod (3) is threadedly connected to the telescopic block (6). A motor (4) is fixedly connected to a position of the outer wall of the installation box (1) near one end of the telescopic block (6), and the output end of the motor (4) is fixedly connected to one end of the screw rod (3).

3. The circuit board clamping device of the automatic alignment exposure machine according to claim 2, characterized in that: Strip-shaped slide grooves (5) are provided on both sides of the inner wall of the installation box (1) near the telescopic block (6), and strip-shaped sliders (7) are fixedly connected to both sides of the outer wall of the telescopic block (6), and the two strip-shaped sliders (7) are slidably connected to the two strip-shaped slide grooves (5) respectively.

4. The circuit board clamping device of the automatic alignment exposure machine according to claim 3, characterized in that: One end of the two connecting rods (13) close to the telescopic block (6) is fixedly connected to a tension spring (14), and one end of the two tension springs (14) is fixedly connected to the inner wall of the installation box (1) close to the telescopic block (6).

5. The circuit board clamping device of the automatic alignment exposure machine according to claim 4, characterized in that: The outer wall of the installation box (1) is fixedly connected to a first support rod (10) at a position close to the two connecting rods (13); the other ends of the two first support rods (10) are fixedly connected to a plurality of second support rods (9); the positions of the plurality of second support rods (9) correspond to each other; and the two circular anti-sliding blocks (11) are located between the installation box (1) and the second support rods (9).

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