Accurate grinding device for circuit board

Abstract

The utility model relates to the technical field of circuit board processing, in particular to an accurate grinding device for a circuit board, which is characterized in that the left side and the right side of the lower end in a grinding box are rotatably connected with supporting conveying rollers, the front sides of the supporting conveying rollers are rotatably connected with fixed limiting plates, and the rear sides of the supporting conveying rollers are slidably connected with sliding limiting plates; a lifting frame is slidably connected to the middle position of the upper end of the grinding box, and a rotating disc rotates to enable a first screw rod to drive a sliding frame to move front and back, so that a sliding limiting plate can be matched with a fixed limiting plate to conduct front-back limiting treatment on a circuit board; and meanwhile, a second screw rod can drive a lifting frame to move up and down through rotation of a second motor, so that a top pressing roller can limit the upper end of the circuit board, the circuit board can be automatically conveyed under the rotation effect of a first motor, and the accurate grinding machining efficiency and the accurate grinding machining stability of the circuit board are improved.

Description

Technical Field

[0001] The utility model relates to a fine grinding device for a circuit board, belonging to the technical field of circuit board processing. Background Art

[0002] Circuit board is also called circuit board. Circuit board can be called printed circuit board or printed circuit board. Its English name is PCB, FPC circuit board and hard-flex board. The birth and development of FPC and PCB gave birth to the new product of hard-flex board. Therefore, hard-flex board is a flexible circuit board and a rigid circuit board. After lamination and other processes, they are combined according to relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics.

[0003] In the existing fine grinding process of circuit boards, the circuit boards are usually clamped by a fixture before they can be stably ground. This method requires repeated adjustment of the fixture before the circuit boards can be disassembled, assembled and replaced, thereby reducing the fine grinding efficiency of the circuit boards; and in the fine grinding process, a large amount of dust is easily generated, which not only affects the surrounding working environment, but also easily causes harm to the health of the workers, reducing the environmental protection and safety of the circuit board fine grinding process. Utility Model Content

[0004] The purpose of the utility model is to provide a fine grinding device for a circuit board to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fine grinding device for a circuit board comprises a base and a grinding box, the upper end of the base is fixedly connected to the grinding box, the left and right sides of the inner lower end of the grinding box are rotatably connected to support and conveying rollers, the front side of the support and conveying roller is rotatably connected to a fixed limit plate, the fixed limit plate is fixedly connected to the grinding box, the rear side of the support and conveying roller is slidably connected to a sliding limit plate, the inner left sides of the sliding limit plate and the fixed limit plate are rotatably connected to side grinding rollers, a lifting frame is slidably connected to the middle position of the upper end of the grinding box, the lower end right side of the lifting frame is rotatably connected to a top wall grinding roller, the upper right side of the grinding box is fixedly connected to a dust suction box, the left end of the dust suction box is sealed with a dust suction pipe, and the lower end of the dust suction pipe is sealed with a dust suction end head.

[0007] Furthermore, a first motor is fixedly connected to the lower right side of the front end of the polishing box, and an output shaft of the first motor is fixedly connected to the supporting conveying roller.

[0008] Furthermore, the rear end wall of the polishing box is slidably connected to a sliding frame, the inner side of the sliding frame is rotatably connected to a first screw rod, the first screw rod is spirally connected to the polishing box, the sliding frame is fixedly connected to a sliding limit plate, and the rear end of the first screw rod is fixedly connected to a turntable.

[0009] Furthermore, grinding grooves are provided on the right sides of the upper ends of the fixed limiting plate and the sliding limiting plate, and the positions of the grinding grooves correspond to the positions of the top wall grinding rollers.

[0010] Furthermore, a second motor is fixedly connected to the upper end of the lifting frame, a second screw is fixedly connected to the lower end of the output shaft of the second motor, the second screw is rotatably connected to the lifting frame, the second screw is spirally connected to the polishing box, and a top pressure roller is rotatably connected to the left side of the lower end of the lifting frame.

[0011] Furthermore, the right end of the dust collection box is sealedly connected to an exhaust frame, the right end inside the exhaust frame is fixedly connected to a dustproof net, and the left side inside the exhaust frame is fixedly connected to an exhaust fan.

[0012] Furthermore, the upper end of the dust collection box is sealed with a cover plate, the lower end of the cover plate is fixedly connected with a dust collecting net frame, and the dust collecting net frame and the left side wall of the dust collection box are both provided with dust inlets.

[0013] The beneficial effects of the utility model are:

[0014] The utility model sets a rotating disk so that the first screw can drive the sliding frame to move forward and backward, so that the sliding limit plate can cooperate with the fixed limit plate to limit the circuit board forward and backward, and the side grinding roller can fit the side of the circuit board for fine grinding. At the same time, the second motor is rotated to enable the second screw to drive the lifting frame to move up and down, so that the top pressure roller can limit the upper end of the circuit board, and the circuit board can be automatically conveyed under the rotation of the first motor, and the upper end surface of the circuit board can be polished under the action of the top wall grinding roller. The utility model performs fine grinding to improve the fine grinding efficiency and fine grinding stability of the circuit board. The utility model utilizes the function of the exhaust fan to extract the gas inside the grinding box, and with the flow of the airflow, the dust generated by the grinding can enter the dust suction box through the dust suction end and the dust suction pipe, and the dust generated can be centrally collected and processed on the filtering action line of the dust collecting net frame, and the dust collecting net frame can be removed by disassembling and assembling the cover plate to facilitate the dust recovery and processing, and can effectively protect the surrounding working environment and avoid the harm of dust to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a fine grinding device for a circuit board of the utility model;

[0017] Figure 2 This is a top sectional view of the installation structure of a grinding box of a circuit board fine grinding device of the utility model;

[0018] Figure 3 This is a cross-sectional view of the installation structure of a lifting frame, a second motor and a second screw rod of a circuit board fine grinding device of the utility model;

[0019] Figure 4 This is a cross-sectional view of the installation structure of a dust collecting box, an exhaust frame and a cover plate of a circuit board fine grinding device of the utility model;

[0020] Numbers in the figure: 1. Base; 2. Grinding box; 3. Support conveyor roller; 4. Fixed limit plate; 5. Sliding limit plate; 6. Side grinding roller; 7. Lifting frame; 8. Top wall grinding roller; 9. Dust suction box; 10. Dust suction pipe; 11. Dust suction end; 12. First motor; 13. Sliding frame; 14. First screw; 15. Turntable; 16. Grinding groove; 17. Second motor; 18. Second screw; 19. Top pressure roller; 20. Exhaust frame; 21. Dustproof net; 22. Exhaust fan; 23. Cover plate; 24. Dust collection net frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A fine grinding device for a circuit board comprises a base 1 and a grinding box 2, wherein the upper end of the base 1 is fixedly connected to the grinding box 2, the left and right sides of the lower end of the inner part of the grinding box 2 are rotatably connected to support conveying rollers 3, the front side of the support conveying rollers 3 is rotatably connected to a fixed limit plate 4, the fixed limit plate 4 is fixedly connected to the grinding box 2, the rear side of the support conveying rollers 3 is slidably connected to a sliding limit plate 5, the left sides of the sliding limit plate and the inner part of the fixed limit plate 4 are rotatably connected to side grinding rollers 6, and a lifting frame 7 is slidably connected to the middle position of the upper end of the grinding box 2, and the lifting frame 7 is slidably connected to the lifting frame 7. The lower right side of the lower end of the lower frame 7 is rotatably connected to the top wall grinding roller 8, the front lower right side of the grinding box 2 is fixedly connected to the first motor 12, the output shaft of the first motor 12 is fixedly connected to the supporting conveying roller 3, the rear end wall of the grinding box 2 is slidably connected to the sliding frame 13, the inner side of the sliding frame 13 is rotatably connected to the first screw 14, the first screw 14 is spirally connected to the grinding box 2, the sliding frame 13 is fixedly connected to the sliding limit plate 5, the rear end of the first screw 14 is fixedly connected to the turntable 15, the upper right side of the fixed limit plate 4 and the sliding limit plate 5 A grinding groove 16 is provided on each side, and the position of the grinding groove 16 corresponds to the position of the top wall grinding roller 8. The upper end of the lifting frame 7 is fixedly connected to the second motor 17, and the lower end of the output shaft of the second motor 17 is fixedly connected to the second screw 18. The second screw 18 is rotatably connected to the lifting frame 7, and the second screw 18 is spirally connected to the grinding box 2. The left side of the lower end of the lifting frame 7 is rotatably connected to the top pressure roller 19. The rotation of the turntable 15 enables the first screw 14 to drive the sliding frame 13 to move forward and backward, so that the sliding limit plate 5 can cooperate with the fixed The limit plate 4 performs front and rear limit processing on the circuit board, and enables the side grinding roller 6 to fit the side of the circuit board for fine grinding. At the same time, by rotating the second motor 17, the second screw 18 can drive the lifting frame 7 to move up and down, so that the top pressure roller 19 can limit the upper end of the circuit board, and under the rotation of the first motor 12, the circuit board can be automatically conveyed, and under the action of the top wall grinding roller 8, the upper end surface of the circuit board can be finely ground, thereby improving the fine grinding efficiency and fine grinding stability of the circuit board.

[0024] Example 2 Please refer to Figure 1 and Figure 4The difference between this embodiment and embodiment 1 is that: a dust collection box 9 is fixedly connected to the right side of the upper end of the polishing box 2, a dust collection pipe 10 is sealed to the left end of the dust collection box 9, a dust collection end 11 is sealed to the lower end of the dust collection pipe 10, an exhaust frame 20 is sealed to the right end of the dust collection box 9, a dustproof net 21 is fixedly connected to the right end of the exhaust frame 20, an exhaust fan 22 is fixedly connected to the left side of the exhaust frame 20, a cover plate 23 is sealed to the upper end of the dust collection box 9, a dust collection net frame 24 is fixedly connected to the lower end of the cover plate 23, and the dust collection net frame 24 and the dust collection net frame 24 are sealed to the dust collection box 9. The left side wall of the box 9 is provided with a dust inlet. The exhaust fan 22 can be used to extract the gas inside the grinding box 2, and the dust generated by grinding can enter the dust box 9 through the dust suction end 11 and the dust suction pipe 10 as the air flows. The generated dust can be collected and processed in a centralized manner on the filtering action line of the dust collecting frame 24, and the dust collecting frame 24 can be removed by disassembling and assembling the cover plate 23, so as to facilitate the recovery of the dust, and effectively protect the surrounding working environment and avoid the harm caused by dust to the human body.

[0025] Working principle of the utility model: when the device is in use, the first screw 14 can drive the sliding frame 13 to move forward and backward through the rotation of the turntable 15, so that the sliding limit plate 5 can cooperate with the fixed limit plate 4 to limit the circuit board forward and backward, and the side grinding roller 6 can fit the side of the circuit board for fine grinding. At the same time, the second screw 18 can drive the lifting frame 7 to move up and down through the rotation of the second motor 17, so that the top pressure roller 19 can limit the upper end of the circuit board, and the circuit board can be automatically conveyed under the rotation of the first motor 12, and the top wall grinding roller 8 can The upper end surface of the circuit board is finely ground to improve the fine grinding efficiency and fine grinding stability of the circuit board, and the exhaust fan 22 can be used to extract the gas inside the grinding box 2, and the dust generated by the grinding can enter the dust box 9 through the dust suction end 11 and the dust suction pipe 10 as the air flows, and the dust generated can be collected and processed in a centralized manner on the filtering action line of the dust collecting frame 24, and the dust collecting frame 24 can be removed by disassembling and assembling the cover plate 23 to facilitate the recovery of the dust, and can effectively protect the surrounding working environment and avoid the harm caused by dust to the human body.

[0026] 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 fine grinding device for a circuit board, comprising a base (1) and a grinding box (2), characterized in that: The upper end of the base (1) is fixedly connected to a grinding box (2), and the left and right sides of the lower end of the grinding box (2) are rotatably connected to support conveying rollers (3), the front side of the support conveying roller (3) is rotatably connected to a fixed limit plate (4), and the fixed limit plate (4) is fixedly connected to the grinding box (2), the rear side of the support conveying roller (3) is slidably connected to a sliding limit plate (5), and the left sides of the sliding limit plate and the fixed limit plate (4) are rotatably connected to side grinding rollers (6), a lifting frame (7) is slidably connected at the middle position of the upper end of the grinding box (2), and the right side of the lower end of the lifting frame (7) is rotatably connected to a top wall grinding roller (8), and the right side of the upper end of the grinding box (2) is fixedly connected to a dust suction box (9), the left end of the dust suction box (9) is sealed with a dust suction pipe (10), and the lower end of the dust suction pipe (10) is sealed with a dust suction end (11).

2. A fine grinding device for a circuit board according to claim 1, characterized in that: A first motor (12) is fixedly connected to the lower right side of the front end of the polishing box (2), and an output shaft of the first motor (12) is fixedly connected to the supporting conveying roller (3).

3. A circuit board fine grinding device according to claim 1, characterized in that: The rear end wall of the polishing box (2) is slidably connected to a sliding frame (13), the inner side of the sliding frame (13) is rotatably connected to a first screw rod (14), the first screw rod (14) is spirally connected to the polishing box (2), the sliding frame (13) is fixedly connected to the sliding limit plate (5), and the rear end of the first screw rod (14) is fixedly connected to a rotating disk (15).

4. A fine grinding device for a circuit board according to claim 1, characterized in that: A grinding groove (16) is provided on the right side of the upper end of the fixed limiting plate (4) and the sliding limiting plate (5), and the position of the grinding groove (16) corresponds to the position of the top wall grinding roller (8).

5. A circuit board fine grinding device according to claim 1, characterized in that: The upper end of the lifting frame (7) is fixedly connected to a second motor (17), the lower end of the output shaft of the second motor (17) is fixedly connected to a second screw rod (18), the second screw rod (18) is rotatably connected to the lifting frame (7), the second screw rod (18) is spirally connected to the grinding box (2), and the left side of the lower end of the lifting frame (7) is rotatably connected to a top pressure roller (19).

6. A circuit board fine grinding device according to claim 1, characterized in that: The right end of the dust collection box (9) is sealedly connected to an exhaust frame (20), the right end inside the exhaust frame (20) is fixedly connected to a dustproof net (21), and the left side inside the exhaust frame (20) is fixedly connected to an exhaust fan (22).

7. A fine grinding device for a circuit board according to claim 1, characterized in that: The upper end of the dust collection box (9) is sealed with a cover plate (23), the lower end of the cover plate (23) is fixedly connected with a dust collecting net frame (24), and the left side wall of the dust collection box (24) and the dust collection box (9) are both provided with dust inlets.

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