Surface-mounted circuit board edge grinding device

Abstract

The utility model discloses a patch circuit board edging device which comprises a support and a supporting plate, the two ends of the supporting plate are fixedly connected to the inner side of the support, the inner surface of the support is rotationally connected with a first conveying belt and a second conveying belt, and the first conveying belt and the second conveying belt are arranged oppositely. The surface of the supporting plate is fixedly connected with a motor through bolts, an output shaft of the motor is fixedly connected with a first belt pulley, the first belt pulley is in transmission connection with a second belt pulley through a belt, a telescopic assembly is arranged on the surface of the second belt pulley, and grinding discs are arranged at the two ends of the telescopic assembly. According to the circuit board polishing device, the first conveying belt and the second conveying belt are arranged, a circuit board is conveyed while being clamped through the first conveying belt and the second conveying belt, the motor enables the polishing discs to rotate through the telescopic assembly, and when the circuit board passes through the inner sides of the two polishing discs, the two polishing discs polish the two sides of the circuit board at the same time; therefore, the defect that two sides of the circuit board cannot be polished simultaneously is overcome, and polishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board edge grinding, in particular to a patch circuit board edge grinding device. Background Art

[0002] With the rapid development of electronic technology, circuit boards have become important electronic components and are widely used in various fields. Almost all electronic devices such as mobile phones, cars, drones, and laptops contain corresponding circuit boards. The first step in circuit board processing - edge grinding - directly affects the quality of the circuit board in subsequent applications.

[0003] After searching, the Chinese patent application number 202320480590.7 discloses a PCB circuit board edge grinding device, including a processing table, a moving component is arranged in the middle of the upper end of the processing table, and a fixed seat is arranged at the upper end of the moving component. The utility model drives the screw to rotate by the rotation of the stepper motor, and the screw drives the slide to slide in the slide. The fixed seat at the upper end of the slide drives the PCB circuit board to move, so that the PCB circuit board is close to the edge grinding disk, and the sliding seat is pushed to make the edge grinding disk close to the side of the PCB circuit board. The bolts are tightened, and the position is adjustable to improve the grinding quality of the device.

[0004] The above patent has the following deficiencies: it does not have the function of simultaneously polishing both sides of the circuit board. Since the function of simultaneously polishing both sides of the circuit board can improve the polishing efficiency when the device is in use, it has the defect of not being able to polish both sides of the circuit board at the same time. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a chip circuit board edge grinding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A patch circuit board edge grinding device comprises a bracket and a support plate, wherein both ends of the support plate are fixedly connected to the inner side of the bracket, a conveyor belt 1 and a conveyor belt 2 are rotatably connected to the inner surface of the bracket, and the conveyor belt 1 and the conveyor belt 2 are arranged on opposite surfaces; a motor is fixedly connected to the surface of the support plate by bolts, a pulley 1 is fixedly connected to the output shaft of the motor, and the pulley 1 is connected to the pulley 2 by belt transmission, a telescopic component is arranged on the surface of the pulley 2, and grinding discs are arranged at both ends of the telescopic component.

[0008] As a further solution of the utility model: the telescopic assembly includes a square barrel and a round rod, the outer surface of the round rod is slidably connected to the inner surface of the square barrel, the inner surface of the square barrel is provided with a round hole, a spring is provided in the round hole, one end of the spring is fixedly connected to the surface of the round hole, the other end of the spring is fixedly connected to a protrusion, a plug-in rod is provided on the inside of the spring, one end of the plug-in rod is fixedly connected to the surface of the protrusion, and the other end of the plug-in rod passes through the surface wall of the square barrel.

[0009] As a further solution of the utility model: the surface of the round rod is provided with a groove matched with the protrusion.

[0010] As a further solution of the utility model: a slide groove is arranged on the inner surface of the square barrel, and a sliding block adapted to the slide groove is fixedly connected to the surface of the round rod.

[0011] As a further solution of the utility model: the surface of the round rod is rotatably connected with a connecting piece, and the two sides of the connecting piece are slidably connected to the surface of the bracket. One end of the two connecting pieces is movably connected with screw 1 and screw 2 respectively, and the spiral grooves on the surface of screw 1 and screw 2 rotate in opposite directions.

[0012] As a further solution of the utility model: the other end of the connecting piece is fixedly connected to a dust box, and one side of the dust box is slidably connected to the surface of the support plate.

[0013] As a further solution of the utility model: a notch is arranged on the surface of the dust box, a plastic strip is arranged inside the notch, and one end of the plastic strip is fixedly connected to the surface of the notch.

[0014] As a further solution of the utility model: one side of the grinding disc is arranged on the inner side of the dust box.

[0015] Compared with the prior art, the utility model provides a SMD circuit board edge grinding device, which has the following beneficial effects:

[0016] 1. The SMD circuit board edge grinding device is provided with a conveyor belt 1 and a conveyor belt 2. The conveyor belt 1 and the conveyor belt 2 are used to clamp the circuit board and convey it at the same time. The motor rotates the grinding disc through the telescopic component. When the circuit board passes the inner side of the two grinding discs, the two grinding discs grind both sides of the circuit board at the same time, thereby solving the defect that both sides of the circuit board cannot be polished at the same time and improving the grinding efficiency.

[0017] 2. The SMD circuit board edge grinding device is provided with a lead screw 1 and a lead screw 2. When the plug-in rod is pulled, the directions of the spiral grooves on the lead screw 1 and the lead screw 2 are opposite. Therefore, when the lead screw 1 and the lead screw 2 are rotated at the same time, the movement directions of the two connecting parts move towards or opposite to each other, so that the two round rods are extended and retracted at the same time. The distance between the two grinding discs can be changed by utilizing the extension and retraction of the two round rods, so that circuit boards of different widths can be polished, thereby increasing the applicability of the device.

[0018] 3. The SMD circuit board edge grinding device is provided with a dust box, and one side of the grinding disc is arranged on the inner side of the dust box, so that the dust generated when the grinding disc grinds the circuit board is in the dust box, and the dust is sucked away by a vacuum cleaner, so that the working environment is dust-free.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a SMD circuit board edge grinding device proposed by the utility model;

[0021] Figure 2 This is a partial structural schematic diagram of a SMD circuit board edge grinding device proposed by the utility model;

[0022] Figure 3 This is a partial cross-sectional view of a SMD circuit board edge grinding device proposed by the utility model;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0025] Figure 6 for Figure 3 Enlarged view of point C in the middle.

[0026] In the figure: 1. bracket; 2. conveyor belt 1; 3. conveyor belt 2; 4. motor; 5. support plate; 6. grinding disc; 7. pulley 1; 8. pulley 2; 9. telescopic assembly; 10. screw 1; 11. screw 2; 12. dust box; 13. square barrel; 14. round rod; 15. groove; 16. spring; 17. bump; 18. slider; 19. slide groove; 20. notch; 21. plastic strip; 22. suction pipe; 23. connector; 24. plug-in rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] A chip circuit board edge grinding device, such as Figure 1-Figure 2 As shown, it includes a bracket 1 and a support plate 5, both ends of the support plate 5 are fixedly connected to the inner side of the bracket 1, and the inner surface of the bracket 1 is rotatably connected with a conveyor belt 1 2 and a conveyor belt 2 3, and the conveyor belt 1 2 and the conveyor belt 2 3 are arranged on opposite surfaces, and the conveyor belt 1 2 and the conveyor belt 2 3 are used to clamp the circuit board and also to transport the circuit board;

[0029] The surface of the support plate 5 is fixedly connected to the motor 4 by bolts, the output shaft of the motor 4 is fixedly connected to the pulley 1 7, the pulley 1 7 is connected to the pulley 2 8 through a belt drive, the surface of the pulley 2 8 is provided with a telescopic component 9, and grinding discs 6 are provided at both ends of the telescopic component 9.

[0030] When in use, the circuit board is placed between conveyor belt 1 2 and conveyor belt 2 3, and the circuit board is conveyed to the inner side of the grinding disk 6 by means of conveyor belt 1 2 and conveyor belt 2 3. At the same time, the motor 4 drives the pulley 1 7 to rotate, so that the pulley 2 8 drives the telescopic component 9 to rotate, thereby causing the grinding disks 6 at both ends of the telescopic component 9 to rotate. When both sides of the circuit board pass through the grinding disk 6, the grinding disk 6 grinds both sides of the circuit board at the same time.

[0031] The device is provided with a conveyor belt 1 2 and a conveyor belt 2 3. The conveyor belt 1 2 and the conveyor belt 2 3 are used to clamp the circuit board and convey it at the same time. The motor 4 rotates the grinding disc 6 through the telescopic component 9. When the circuit board passes through the inner side of the two grinding discs 6, the two grinding discs 6 grind both sides of the circuit board at the same time, thereby solving the defect that both sides of the circuit board cannot be polished at the same time and improving the grinding efficiency.

[0032] like Figure 2-Figure 5 As shown, the telescopic assembly 9 includes a square barrel 13 and a round rod 14, the outer surface of the round rod 14 is slidably connected to the inner surface of the square barrel 13, the inner surface of the square barrel 13 is provided with a round hole, a spring 16 is provided in the round hole, one end of the spring 16 is fixedly connected to the surface of the round hole, the other end of the spring 16 is fixedly connected to a protrusion 17, an insertion rod 24 is provided inside the spring 16, one end of the insertion rod 24 is fixedly connected to the surface of the protrusion 17, and the other end of the insertion rod 24 passes through the surface wall of the square barrel 13;

[0033] The surface of the round rod 14 is provided with a groove 15 adapted to the protrusion 17;

[0034] like Figure 5As shown, a slide groove 19 is provided on the inner surface of the square barrel 13, and a slider 18 adapted to the slide groove 19 is fixedly connected to the surface of the round rod 14;

[0035] The surface of the round rod 14 is rotatably connected with a connecting piece 23 (a common axial limiting structure, such as a convex ring and a circular groove structure, is also provided at the connection between the round rod 14 and the connecting piece 23, so that the round rod 14 can move axially with the connecting piece 23), and both sides of the connecting piece 23 are slidably connected to the surface of the bracket 1, and one end of the two connecting pieces 23 is movably connected with a lead screw 10 and a lead screw 2 11 respectively, and the spiral grooves on the surfaces of the lead screw 10 and the lead screw 2 11 rotate in opposite directions, and the inner surface of the connecting piece 23 is provided with a slide plate adapted to the spiral grooves on the surfaces of the lead screw 10 and the lead screw 2 11;

[0036] The other end of the connecting member 23 is fixedly connected to the dust box 12 .

[0037] When in use, the plug-in rod 24 is pulled upward by hand, so that the protrusion 17 is disengaged from the groove 15, and the spiral grooves on the lead screw 10 and the lead screw 2 11 are in opposite directions, so that when the lead screw 10 and the lead screw 2 11 are rotated at the same time, the movement directions of the two connecting members 23 are moved in opposite directions, so that the two round rods 14 are stretched and retracted at the same time, and the distance between the two grinding discs 6 can be changed by the expansion and contraction of the two round rods 14. Since the square barrel 13 is provided with a slide groove 19, the slider 18 on the surface of the round rod 14 cooperates with the slide groove 19, so that the round rod 14 follows the rotation when the motor 4 drives the square barrel 13 to rotate. Since the inner surface of the square barrel 13 is provided with a circular hole, the elastic force of the spring 16 in the circular hole is used to squeeze the protrusion 17, so that when the protrusion 17 cooperates with the groove 15, the round rod 14 is in a fixed position.

[0038] The device is provided with a lead screw 10 and a lead screw 11. When the plug-in rod 24 is pulled, the directions of the spiral grooves on the lead screw 10 and the lead screw 11 are opposite. Therefore, when the lead screw 10 and the lead screw 11 are rotated at the same time, the movement directions of the two connecting members 23 are moved towards or opposite to each other, so that the two round rods 14 are extended and retracted at the same time. The extension and retraction of the two round rods 14 can drive the distance between the two grinding discs 6 to change, so that circuit boards of different widths can be polished, thereby increasing the applicability of the device.

[0039] like Figure 6 As shown, the surface of the dust box 12 is provided with a notch 20, and a plastic strip 21 is provided inside the notch 20. One end of the plastic strip 21 is fixedly connected to the surface of the notch 20. The notch 20 is used to pass the circuit board when the device is in use, and the plastic strip 21 blocks dust when the notch 20 does not pass the circuit board.

[0040] One side of the grinding disc 6 is arranged inside the dust box 12;

[0041] like Figure 2 As shown, a suction pipe 22 is fixedly connected to the surface of the dust box 12, one end of the suction pipe 22 is connected to the dust box 12, and the other end of the suction pipe 22 is fixedly connected to a dust collector.

[0042] The device is provided with a dust box 12, and one side of the grinding disc 6 is arranged inside the dust box 12, so that the dust generated when the grinding disc 6 grinds the circuit board is in the dust box 12, and the dust is sucked away by a vacuum cleaner, so that the working environment is dust-free.

[0043] Working principle: put the circuit board into conveyor belt 1 2 and conveyor belt 2 3, use conveyor belt 1 2 and conveyor belt 2 3 to convey the circuit board to the inner side of grinding disc 6, and at the same time, motor 4 drives pulley 1 7 to rotate, so that pulley 2 8 drives telescopic assembly 9 to rotate, so that grinding disc 6 at both ends of telescopic assembly 9 rotates, when both sides of the circuit board pass through grinding disc 6, grinding disc 6 grinds both sides of the circuit board at the same time, and while pulling plug-in rod 24, the directions of the spiral grooves on lead screw 10 and lead screw 2 11 are opposite, so that when lead screw 10 and lead screw 2 11 are rotated at the same time, the two connections are The movement directions of the parts 23 are opposite or opposite to each other, so that the two round rods 14 are extended and retracted at the same time, and the distance between the two grinding discs 6 can be changed by utilizing the extension and retraction of the two round rods 14. Since a slide groove 19 is provided in the square barrel 13, the slider 18 on the surface of the round rod 14 cooperates with the slide groove 19, so that when the motor 4 drives the square barrel 13 to rotate, the round rod 14 follows the rotation. Since a circular hole is provided on the inner surface of the square barrel 13, the elastic force of the spring 16 in the circular hole is utilized to squeeze the protrusion 17, so that when the protrusion 17 cooperates with the groove 15, the round rod 14 is in a fixed position.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A SMD circuit board edge grinding device, comprising a bracket (1) and a support plate (5), wherein both ends of the support plate (5) are fixedly connected to the inner side of the bracket (1). It is characterized in that The inner surface of the bracket (1) is rotatably connected with a conveyor belt 1 (2) and a conveyor belt 2 (3), and the conveyor belt 1 (2) and the conveyor belt 2 (3) are arranged on opposite surfaces; the surface of the support plate (5) is fixedly connected with a motor (4) by bolts, the output shaft of the motor (4) is fixedly connected with a pulley 1 (7), the pulley 1 (7) is connected with a pulley 2 (8) by belt transmission, and a telescopic component (9) is arranged on the surface of the pulley 2 (8), and grinding discs (6) are arranged at both ends of the telescopic component (9).

2. A SMD circuit board edge grinding device according to claim 1, It is characterized in that The telescopic assembly (9) comprises a square barrel (13) and a round rod (14); the outer surface of the round rod (14) is slidably connected to the inner surface of the square barrel (13); a round hole is provided on the inner surface of the square barrel (13); a spring (16) is provided in the round hole; one end of the spring (16) is fixedly connected to the surface of the round hole; the other end of the spring (16) is fixedly connected to a protrusion (17); an insertion rod (24) is provided inside the spring (16); one end of the insertion rod (24) is fixedly connected to the surface of the protrusion (17); the other end of the insertion rod (24) passes through the surface wall of the square barrel (13).

3. A SMD circuit board edge grinding device according to claim 2, It is characterized in that The surface of the round rod (14) is provided with a groove (15) adapted to the convex block (17).

4. A SMD circuit board edge grinding device according to claim 3, It is characterized in that The inner surface of the square barrel (13) is provided with a slide groove (19), and a sliding block (18) adapted to the slide groove (19) is fixedly connected to the surface of the round rod (14).

5. A SMD circuit board edge grinding device according to claim 4, It is characterized in that The surface of the round rod (14) is rotatably connected to a connecting piece (23), and both sides of the connecting piece (23) are slidably connected to the surface of the bracket (1). One end of the two connecting pieces (23) is movably connected to a lead screw 1 (10) and a lead screw 2 (11), respectively, and the spiral grooves on the surfaces of the lead screw 1 (10) and the lead screw 2 (11) rotate in opposite directions.

6. A SMD circuit board edge grinding device according to claim 5, It is characterized in that The other end of the connecting piece (23) is fixedly connected to a dust box (12).

7. A SMD circuit board edge grinding device according to claim 6, It is characterized in that The surface of the dust box (12) is provided with a notch (20), the inner side of the notch (20) is provided with a plastic strip (21), and one end of the plastic strip (21) is fixedly connected to the surface of the notch (20).

8. The SMD circuit board edge grinding device according to claim 1, It is characterized in that One side of the grinding disc (6) is arranged on the inner side of the dust box (12).

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