Polishing device for circuit board processing

Abstract

The utility model discloses a circuit board processing polishing device which comprises a bottom plate, a support is fixedly connected to the top of the bottom plate, a polishing roller is rotationally connected into the support, a second motor is fixedly installed at the top of the support, one end of an output shaft of the second motor is fixedly connected with one end of a rotating shaft of the polishing roller, and a fixing frame is fixedly connected to the top of the bottom plate. A clamping assembly is arranged in the fixing frame, and a dust inlet pipe is fixedly connected into the bottom plate. The utility model aims to solve the problems that a circuit board shifts or shakes in the grinding process due to the fact that a clamp does not clamp in the grinding process, the grinding effect is not uniform, and even the circuit board is damaged or is poorly ground, and scraps generated in the grinding process cannot be cleaned in time and fly in the air, so that the grinding efficiency is improved. The concentration of particulate matters in the air can be increased, so that the air quality of a working environment is influenced, and the health of staff is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and specifically relates to a grinding device for circuit board processing. Background Technique

[0002] A printed circuit board (PCB) is a plastic substrate used to support electronic components, covered with conductive traces and locations for connecting electronic components. The printed circuit board is a key component of modern electronic devices. In order to make the edges of the printed circuit board smooth, edge grinding treatment is required for the printed circuit board.

[0003] At present, when grinding a printed circuit board, it is necessary to grind the burrs at its corners. During the grinding process, if the fixture is not clamped tightly, the printed circuit board may shift or shake during grinding, resulting in uneven grinding effects. It may even cause damage to the printed circuit board or poor grinding of the printed circuit board. Moreover, the debris generated during grinding cannot be cleaned in time, and the debris will fly in the air, resulting in an increase in the concentration of particulate matter in the air, affecting the air quality of the working environment and causing impacts on the health of employees. Content of the Utility Model

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

[0005] To achieve the above purpose, the utility model provides the following technical solution: It includes a bottom plate. A bracket is fixedly connected to the top of the bottom plate. A grinding roller is rotatably connected inside the bracket. A second motor is fixedly installed at the top of the bracket. One end of the output shaft of the second motor is fixedly connected to one end of the rotating shaft of the grinding roller. A fixing frame is fixedly connected to the top of the bottom plate. A clamping assembly is arranged inside the fixing frame. An air inlet pipe is fixedly connected inside the bottom plate. A dust suction hood is fixedly connected to one side of the air inlet pipe. A filter box is arranged at the bottom of the bottom plate. The bottom of the air inlet pipe is fixedly connected to the top of the filter box. A collection box is slidably connected inside the filter box. A filter screen is arranged at the bottom of the collection box. A fixing block is fixedly connected to one side of the filter box. A chute is opened inside the fixing block. A limiting assembly is arranged inside the chute. A blower is fixedly installed on one side of the filter box. A connecting pipe is arranged between the blower and the filter box.

[0006] As a further preference of this technical solution, the clamping assembly includes a reciprocating lead screw. The reciprocating lead screw is rotatably connected inside the fixing frame. A first motor is fixedly installed at the top of the fixing frame. One end of the output shaft of the first motor is fixedly connected to the top of the reciprocating lead screw.

[0007] As a further preference of the technical solution, the clamping assembly further includes a displacement groove which is penetrated and opened on one side of the fixing frame. A displacement rod is slidably connected inside the displacement groove, and a second clamping plate is rotatably connected to the bottom of the displacement rod.

[0008] As a further preference of the technical solution, one end of the displacement rod is fixedly connected with a displacement block. A threaded groove is opened inside the displacement block and is threadedly connected to the outer side of the reciprocating lead screw. The top of the bottom plate is fixedly connected with a mounting frame. A small gear is rotatably connected between the bottom of the mounting frame and the top of the bottom plate. The bottom of the bottom plate is fixedly installed with a third motor. One end of the output shaft of the third motor is fixedly connected with one end of the rotating shaft of the small gear. The top of the bottom plate is rotatably connected with a first clamping plate. A large gear is fixedly connected to the outer side of the rotating shaft of the first clamping plate. The large gear is meshed with the small gear. Rubber pads are arranged on one sides of the first clamping plate and the second clamping plate.

[0009] As a further preference of the technical solution, the limiting assembly includes a slider which is slidably connected inside the sliding groove. A spring is fixedly connected between the top of the slider and the inner wall of the sliding groove.

[0010] As a further preference of the technical solution, the limiting assembly further includes a clamping block which is slidably connected inside the fixing block. The top of the clamping block is fixedly connected with the bottom of the slider. A groove is opened on one side of the fixing block. A convex block is fixedly connected to the top of the collection box.

[0011] As a further preference of the technical solution, a limiting groove is penetrated and opened on one side of the fixing block. A dial rod is slidably connected inside the limiting groove. One end of the dial rod is fixedly connected with one side of the slider.

[0012] The utility model provides a grinding device for circuit board processing, which has the following beneficial effects:

[0013] (1) By starting the operation of the clamping assembly, the circuit board is clamped, so as to avoid the problem that the fixture is not clamped tightly during grinding, resulting in the displacement or shaking of the circuit board during grinding and uneven grinding effect.

[0014] (2) By starting the fan, the dust and debris generated by grinding are sucked into the inside of the dust suction cover, then enter the inside of the filter box through the dust inlet pipe, are filtered and collected through the filter screen at the bottom of the collection box, and then discharged by the fan. In this way, it can effectively avoid the problem that the debris generated during grinding cannot be cleaned in time, resulting in the flying of debris in the air, which will increase the concentration of particulate matter in the air and affect the air quality of the working environment. Then, with the cooperation of the limiting assembly, the debris inside the collection box can be processed more conveniently, thereby increasing the practicability of the device. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a bottom three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the limit component of the present utility model;

[0018] Figure 4 of the present utility model Figure 1 is an enlarged view of part A in;

[0019] In the figure: 1, bottom plate; 2, displacement block; 3, fixed frame; 4, mounting frame; 5, small gear; 6, first motor; 7, second motor; 8, bracket; 9, filter box; 10, fan; 11, grinding roller; 12, dust suction hood; 13, dust inlet pipe; 14, fixed block; 15, convex block; 16, collection box; 17, filter net; 18, third motor; 19, limit groove; 20, lever; 21, groove; 22, clamping block; 23, slider; 24, chute; 25, spring; 26, displacement groove; 27, reciprocating lead screw; 28, rubber pad; 29, first clamping plate; 30, second clamping plate; 31, displacement rod; 32, large gear. Detailed Description of the Preferred Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] The present utility model provides a technical solution: As Figures 1-4 shown, in this embodiment, a grinding device for circuit board processing includes a bottom plate 1. A bracket 8 is fixedly connected to the top of the bottom plate 1. A grinding roller 11 is rotatably connected inside the bracket 8. A second motor 7 is fixedly installed on the top of the bracket 8. One end of the output shaft of the second motor 7 is fixedly connected to one end of the rotating shaft of the grinding roller 11. A fixed frame 3 is fixedly connected to the top of the bottom plate 1. A clamping assembly is arranged inside the fixed frame 3. A dust inlet pipe 13 is fixedly connected inside the bottom plate 1. A dust suction hood 12 is fixedly connected to one side of the dust inlet pipe 13. A filter box 9 is arranged at the bottom of the bottom plate 1. The bottom of the dust inlet pipe 13 is fixedly connected to the top of the filter box 9. A collection box 16 is slidably connected inside the filter box 9. A filter net 17 is arranged at the bottom of the collection box 16. A fixed block 14 is fixedly connected to one side of the filter box 9. A chute 24 is opened inside the fixed block 14. A limit assembly is arranged inside the chute 24. A fan 10 is fixedly installed on one side of the filter box 9. A connecting pipe is arranged between the fan 10 and the filter box 9.

[0022] First, place the circuit board inside the clamping assembly, and then start the clamping assembly to clamp the circuit board, so as to avoid the problem that the clamp is not clamped during the grinding process, the circuit board will shift or shake during the grinding process, resulting in uneven grinding effect, and then start the second motor 7 to drive the grinding roller 11 to rotate to grind the edge of the circuit board, and then when grinding, start the fan 10 to suck the grinding dust and debris into the dust hood 12, and then enter the filter box 9 through the dust inlet pipe 13, and filter and collect through the filter net 17 at the bottom of the collection box 16, and then the fan 10 is used to discharge it, which can effectively avoid the problem that the debris generated during grinding cannot be cleaned up in time, and the debris will fly in the air, which will increase the concentration of particulate matter in the air and affect the air quality of the working environment. Then, with the help of the limit assembly, the debris inside the collection box 16 can be more conveniently processed, thereby increasing the practicality of the device.

[0023] like Figures 1-4 As shown, the clamping assembly includes a reciprocating screw rod 27, which is rotatably connected to the inside of the fixed frame 3, and a first motor 6 is fixedly installed on the top of the fixed frame 3. One end of the output shaft of the first motor 6 is fixedly connected to the top of the reciprocating screw rod 27. The clamping assembly also includes a displacement groove 26, which is opened through one side of the fixed frame 3, and a displacement rod 31 is slidably connected to the inside of the displacement groove 26. The bottom of the displacement rod 31 is rotatably connected to the second clamping plate 30, and one end of the displacement rod 31 is fixedly connected to the displacement block 2, and the displacement block 2 has a threaded groove inside and is connected to the second clamping plate 30. The outer side of the reciprocating screw rod 27 is threadedly connected, the top of the base plate 1 is fixedly connected with a mounting frame 4, a pinion 5 is rotatably connected between the bottom of the mounting frame 4 and the top of the base plate 1, a third motor 18 is fixedly installed at the bottom of the base plate 1, one end of the output shaft of the third motor 18 is fixedly connected to one end of the rotating shaft of the pinion 5, the top of the base plate 1 is rotatably connected with a first clamping plate 29, the outer side of the rotating shaft of the first clamping plate 29 is fixedly connected with a large gear 32, the large gear 32 is meshed with the pinion 5, and a rubber pad 28 is provided on one side of the first clamping plate 29 and the second clamping plate 30.

[0024] When clamping the circuit board, first place the circuit board on the top of the first clamping plate 29, then start the first motor 6 output shaft to rotate to drive the reciprocating screw 27 to rotate and drive the displacement block 2 to move, and then drive the displacement rod 31 to slide inside the displacement groove 26, thereby limiting the movement of the displacement block 2, and then drive the second clamping plate 30 to approach the circuit board on the top of the first clamping plate 29 through the movement of the displacement rod 31, so as to clamp and fix it. The rubber pad 28 can increase the friction of its clamping, and also increase the protection of the circuit board during clamping. After one side is polished, start the third motor 18 output shaft to rotate to drive the small gear 5 to rotate and drive the large gear 32 to rotate, and then drive the first clamping plate 29 to rotate, thereby driving the circuit board to rotate, which is convenient for subsequent polishing.

[0025] like Figures 1-4 As shown, the limit assembly includes a slider 23, which is slidably connected to the inside of the slide groove 24, and a spring 25 is fixedly connected between the top of the slider 23 and the inner wall of the slide groove 24. The limit assembly also includes a card block 22, which is slidably connected to the inside of the fixed block 14, and the top of the card block 22 is fixedly connected to the bottom of the slider 23. A groove 21 is provided on one side of the fixed block 14, and a protrusion 15 is fixedly connected to the top of the collection box 16. A limit groove 19 is penetrated through one side of the fixed block 14, and a lever 20 is slidably connected to the inside of the limit groove 19, and one end of the lever 20 is fixedly connected to one side of the slider 23.

[0026] When disassembling the collection box 16, the lever 20 is pushed to slide inside the limiting groove 19 while driving the slider 23 to move, and then the block 22 is driven to move, thereby releasing the limit on the protrusion 15, and then the handle of the collection box 16 is pulled to make it disengage from the inside of the filter box 9. Then, when installing the collection box 16, the collection box 16 is inserted into the inside of the filter box 9, and then the protrusion 15 on the top of the collection box 16 contacts the inclined surface of the block 22, thereby driving the block 22 to move and driving the slider 23 to compress the spring 25. Then, after the protrusion 15 completely enters the inside of the groove 21, the block 22 is driven to rebound under the reaction force of the spring 25, thereby limiting and fixing the protrusion 15, and then completing the fixation of the collection box 16.

[0027] The utility model provides a grinding device for circuit board processing, and the specific working principle is as follows: first, when clamping the circuit board, the circuit board is first placed on the top of the first clamping plate 29, and then the output shaft of the first motor 6 is started to rotate to drive the reciprocating screw rod 27 to rotate and drive the displacement block 2 to move, and then drive the displacement rod 31 to slide inside the displacement groove 26, so as to limit the movement of the displacement block 2, and then the second clamping plate 30 is driven to approach the circuit board on the top of the first clamping plate 29 through the movement of the displacement rod 31, so as to clamp and fix it, and the friction force of its clamping can be increased by the rubber pad 28, and the protection of the circuit board during clamping is also increased, and after one side of the grinding is completed, the output shaft of the third motor 18 is started to rotate to drive the small gear 5 to rotate and drive the large gear 32 to rotate, and then drive the first clamping plate 29 to rotate, so as to drive the circuit board to rotate, so as to facilitate subsequent grinding, and then start the fan 10 to blow the grinding dust The dust and debris are sucked into the dust hood 12, then enter the filter box 9 through the dust inlet pipe 13, are filtered and collected through the filter screen 17 at the bottom of the collection box 16, and are then discharged by the fan 10. Finally, when the collection box 16 is disassembled, the lever 20 is pushed in the limit groove 19 to slide and drive the slider 23 to move, and then drive the block 22 to move, thereby releasing the limit on the protrusion 15, and then pull the handle of the collection box 16 to disengage it from the filter box 9. Then, when installing the collection box 16, the collection box 16 is inserted into the filter box 9, and then the protrusion 15 on the top of the collection box 16 contacts the inclined surface of the block 22, thereby driving the block 22 to move and driving the slider 23 to compress the spring 25. Then, after the protrusion 15 completely enters the groove 21, the block 22 rebounds under the reaction force of the spring 25, thereby limiting and fixing the protrusion 15, and then completing the fixation of the collection box 16.

[0028] 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 grinding device for processing a circuit board, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a bracket (8), the interior of the bracket (8) is rotatably connected to a grinding roller (11), the top of the bracket (8) is fixedly mounted with a second motor (7), one end of the output shaft of the second motor (7) is fixedly connected to one end of the rotating shaft of the grinding roller (11), the top of the base plate (1) is fixedly connected to a fixing frame (3), the interior of the fixing frame (3) is provided with a clamping assembly, the interior of the base plate (1) is fixedly connected to a dust inlet pipe (13), one side of the dust inlet pipe (13) is fixedly connected to a dust hood (12), and the base plate (1) is fixedly connected to a dust inlet pipe (13). A filter box (9) is arranged at the bottom, the bottom of the dust inlet pipe (13) is fixedly connected to the top of the filter box (9), a collection box (16) is slidably connected inside the filter box (9), a filter screen (17) is arranged at the bottom of the collection box (16), a fixed block (14) is fixedly connected to one side of the filter box (9), a slide groove (24) is provided inside the fixed block (14), a limit position assembly is arranged inside the slide groove (24), a fan (10) is fixedly installed on one side of the filter box (9), and a connecting pipe is arranged between the fan (10) and the filter box (9).

2. A grinding device for circuit board processing according to claim 1, characterized in that: The clamping assembly comprises a reciprocating screw rod (27), the reciprocating screw rod (27) is rotatably connected to the inside of the fixed frame (3), a first motor (6) is fixedly mounted on the top of the fixed frame (3), and one end of the output shaft of the first motor (6) is fixedly connected to the top of the reciprocating screw rod (27).

3. A grinding device for circuit board processing according to claim 2, characterized in that: The clamping assembly further comprises a displacement groove (26), the displacement groove (26) being opened through one side of the fixing frame (3), a displacement rod (31) being slidably connected inside the displacement groove (26), and a second clamping plate (30) being rotatably connected at the bottom of the displacement rod (31).

4. A grinding device for circuit board processing according to claim 3, characterized in that: One end of the displacement rod (31) is fixedly connected to a displacement block (2), a thread groove is provided inside the displacement block (2) and is threadedly connected to the outer side of the reciprocating screw rod (27), the top of the base plate (1) is fixedly connected to a mounting frame (4), a pinion (5) is rotatably connected between the bottom of the mounting frame (4) and the top of the base plate (1), a third motor (18) is fixedly installed at the bottom of the base plate (1), one end of the output shaft of the third motor (18) is fixedly connected to one end of the rotating shaft of the pinion (5), the top of the base plate (1) is rotatably connected to a first clamping plate (29), the outer side of the rotating shaft of the first clamping plate (29) is fixedly connected to a large gear (32), the large gear (32) is meshed with the small gear (5), and a rubber pad (28) is provided on one side of each of the first clamping plate (29) and the second clamping plate (30).

5. A grinding device for circuit board processing according to claim 1, characterized in that: The limiting assembly comprises a slider (23), the slider (23) is slidably connected inside the slide groove (24), and a spring (25) is fixedly connected between the top of the slider (23) and the inner wall of the slide groove (24).

6. A grinding device for circuit board processing according to claim 5, characterized in that: The limiting assembly also includes a clamping block (22), the clamping block (22) is slidably connected to the interior of the fixed block (14), the top of the clamping block (22) is fixedly connected to the bottom of the sliding block (23), a groove (21) is provided on one side of the fixed block (14), and a protrusion (15) is fixedly connected to the top of the collection box (16).

7. A grinding device for circuit board processing according to claim 5, characterized in that: A limiting groove (19) is formed through one side of the fixed block (14), a lever (20) is slidably connected inside the limiting groove (19), and one end of the lever (20) is fixedly connected to one side of the sliding block (23).

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