Circuit board surface burr removing device

Abstract

A circuit board surface burr removing device comprises a workbench, a circuit board fixing device and a burr grinding machine. A sealing box is arranged at the bottom of the workbench, pneumatic telescopic rods are arranged on the left side and the right side of the center of the top of the workbench, a movable plate is fixedly connected to the tops of the two pneumatic telescopic rods, a second motor is arranged on one side of the top of the movable plate, and a first transmission shaft is in transmission connection to an output shaft of the second motor; a bearing plate is rotationally inserted into the right side of the top of the first transmission shaft, and a first motor is arranged on the right side of the center of the top of the workbench; according to the circuit board surface burr removing device, through the design between the first motor and the circuit board fixing device, the first motor can drive the fixed circuit board to rotate, and therefore the four board edges of the circuit board can be ground.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board processing, and in particular to a device for removing burrs from the surface of a circuit board. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards make circuits miniaturized and intuitive, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] Currently, circuit boards need to be cut during overall production, with large boards being cut into smaller pieces. However, after cutting, burrs, rough edges, or unevenness may remain on the cut edges. Therefore, burr removal and polishing are necessary. However, existing polishing devices can only remove burrs from one circuit board at a time, resulting in low work efficiency. Therefore, a circuit board surface burr removal device is designed to automatically remove burrs from multiple circuit boards, thereby improving work efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for removing burrs from the surface of circuit boards.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A burr removal device for circuit board surfaces includes: a worktable, a circuit board fixing device, and a burr grinder; a sealed box is provided at the bottom of the worktable, and pneumatic telescopic rods are provided on both the left and right sides of the center of the top of the worktable. A movable plate is fixedly connected to the top of the two pneumatic telescopic rods. A second motor is provided on one side of the top of the movable plate, and a first drive shaft is drivenly connected to the output shaft of the second motor. A receiving plate is rotatably inserted into the right side of the top of the first drive shaft. The first motor is located on the right side of the center of the top of the worktable; the circuit board fixing device is equidistantly positioned at the center of the bottom of the movable plate along a horizontal direction. The circuit board fixing device includes connecting posts fixed at equal intervals to the bottom of the movable plate. One end of the top of the connecting post protrudes outward and is fixedly connected to a spring hinge. The end of the spring hinge away from the connecting post is fixedly connected to a rotating clamp. A rotating shaft is rotatably inserted into the bottom of the connecting post through a bearing. A transmission belt is sleeved on the side of the shaft away from the connecting post. The other side of the transmission belt is sleeved together with the first transmission shaft. The bottom of the movable plate is provided with positioning plates at equal intervals along the horizontal direction. The burr grinder is provided at equal intervals along the horizontal direction at the center of the top of the workbench.

[0007] In one embodiment, the burr grinder includes a fixed base, a protective plate is fixedly connected to the base body at the top center of the fixed base, a grinding disc is disposed in the protective plate, and the center of the grinding disc overlaps with the center of the protective plate.

[0008] In one embodiment, a second drive shaft is drivenly connected to the output shaft of the first motor. The shaft of the second drive shaft passes through each of the burr grinders and is drivenly connected to the grinding disc in each of the burr grinders. It is also sleeved with the center of the protective plate through a bearing.

[0009] In one embodiment, the number of the deburring machines is the same as the number of the circuit board fixing devices, and the grinding disc in each of the deburring machines is perpendicular to the circuit board fixed in each of the circuit board fixing devices.

[0010] In one embodiment, a circular rubber pad is rotatably connected to the side of the rotating clamp and the rotating shaft that are close to each other. The front of the rotating clamp is curved, and its front length is adapted to the front length of the connecting column.

[0011] In one embodiment, a third motor is provided on the back of the left and right sides of the top of the workbench, and a lead screw is driven to the output shaft of the third motor, with a roller provided on the body of the lead screw.

[0012] In one embodiment, the top of the roller is connected to the bottom of the pneumatic telescopic rod, and the length of the lead screw to the side of the third motor is greater than half the length of the side of the worktable.

[0013] In one embodiment, a dust collection baffle is provided on the back of the top of the workbench, and an opening for collecting dust and waste residue is provided on the back of the top of the workbench. A collection box is provided in the inner cavity of the sealed box.

[0014] In one embodiment, an electric telescopic rod is provided at one end of the top of the positioning plate, and the number of positioning plates is the same as the number of circuit board fixing devices, and they correspond one-to-one.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] This utility model discloses a circuit board surface burr removal device. Through the design of the first motor and the circuit board fixing device, the first motor can drive the fixed circuit board to rotate, so that all four edges of the circuit board can be polished.

[0017] This utility model discloses a circuit board surface burr removal device. Through the design between the second motor and the burr grinder, the second motor can drive multiple grinding discs to rotate. At the same time, the clamping plate can clamp one end of the circuit board through the electric telescopic rod, so that it will not rotate when being ground, thereby removing burrs from multiple circuit boards at one time.

[0018] This utility model discloses a burr removal device for circuit board surfaces. By setting a third motor, a lead screw and a roller connected to the output shaft of the motor, and cooperating with a pneumatic telescopic rod set on the roller, the device can drive the pneumatic telescopic rod to move, thereby allowing the circuit board fixing device to move left and right on the burr grinder for grinding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall front structure of the circuit board surface burr removal device of this utility model;

[0021] Figure 2 This is a side view of the overall structure of the circuit board surface burr removal device of this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the circuit board surface burr removal device of this utility model;

[0023] Figure 4 This is a partial structural schematic diagram of the circuit board surface burr removal device of this utility model.

[0024] In the diagram: 1. Workbench; 11. Sealed box; 12. Pneumatic telescopic rod; 13. First motor; 14. Second motor; 15. Movable plate; 16. First drive shaft; 17. Receiving plate; 18. Second drive shaft; 19. Third motor; 191. Lead screw; 192. Roller; 2. Circuit board fixing device; 21. Drive belt; 22. Connecting column; 23. Spring hinge; 24. Rotating clamp; 25. Rotating shaft; 3. Burr grinder; 31. Fixed seat; 32. Protective plate; 33. Grinding disc; 4. Dust recovery baffle; 5. Positioning plate. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0026] like Figure 1-4 As shown, a burr removal device for circuit board surfaces includes: a workbench 1, a circuit board fixing device 2, and a burr grinder 3; a sealed box 11 is provided at the bottom of the workbench 1, and pneumatic telescopic rods 12 are provided on both the left and right sides of the center of the top of the workbench 1. A movable plate 15 is fixedly connected to the top of the two pneumatic telescopic rods 12. A second motor 14 is provided on one side of the top of the movable plate 15. A first drive shaft 16 is drivenly connected to the output shaft of the second motor 14. A receiving plate 17 is rotatably inserted into the right side of the top of the first drive shaft 16. A first motor 13 is provided on the right side of the center of the top of the workbench 1; the circuit board fixing device 2 is arranged at equal distances along the horizontal direction at the bottom of the movable plate 15. In the center, the circuit board fixing device 2 includes connecting posts 22 fixed at equal distances to the bottom of the movable plate 15. One end of the top of the connecting post 22 protrudes outward and is fixedly connected to a spring hinge 23. The end of the spring hinge 23 away from the connecting post 22 is fixedly connected to a rotating clamp 24. The bottom of the connecting post 22 is rotatably inserted into a rotating shaft 25 through a bearing. A transmission belt 21 is sleeved on the side of the rotating shaft 25 away from the connecting post 22. The other side of the transmission belt 21 is sleeved together with the first transmission shaft 16 for mutual transmission. The bottom of the movable plate 15 is provided with positioning plates 5 at equal distances along the horizontal direction. The burr grinder 3 is provided at equal distances along the horizontal direction in the center of the top of the workbench 1. It should be noted that during processing, the operator only needs to pull the rotating clamp 24 and place the cut circuit board between the rotating clamp 24 and the rotating shaft 25, so that it is clamped by the rotating clamp 24 and the rotating shaft 25. When it is necessary to rotate the circuit board, the first motor 13 is activated to drive the first transmission shaft 16 to rotate, which will cause the transmission belt 21 to drive each rotating shaft 25 to rotate, so that the rotating shaft 25 can drive the circuit board to rotate. When it is rotated to the point where the other edge of the board is parallel to the grinding disc 33, it is ready.

[0027] like Figure 1-4As shown, in one embodiment, the deburring machine 3 includes a fixed base 31. A protective plate 32 is fixedly connected to the base body at the top center of the fixed base 31. A grinding disc 33 is disposed in the protective plate 32, and the center of the grinding disc 33 overlaps with the center of the protective plate 32. A second drive shaft 18 is drivenly connected to the output shaft of the first motor 13. The shaft of the second drive shaft 18 passes through each deburring machine 3 and is drivenly connected to the grinding disc 33 in each deburring machine 3. It is also sleeved with the center of the protective plate 32 by a bearing. The number of deburring machines 3 is the same as the number of circuit board fixing devices 2, and the grinding disc 33 in each deburring machine 3 is perpendicular to the circuit board fixed in each circuit board fixing device 2. It should be noted that this design allows one motor to drive multiple grinding discs 33 to rotate, enabling simultaneous deburring and grinding of multiple circuit boards.

[0028] like Figure 1-4 As shown in one embodiment, a circular rubber pad is rotatably connected to the side of the rotating clamp 24 and the rotating shaft 25 that are close to each other. The front of the rotating clamp 24 is curved, and its length matches the length of the front of the connecting post 22. It should be noted that the rubber pads on the rotating clamp 24 and the rotating shaft 25 have high friction, and several rubber protrusions are provided on the side closest to the circuit board.

[0029] like Figure 1-4 As shown in one embodiment, a third motor 19 is installed on the back of the top left and right sides of the workbench 1. A lead screw 191 is driven to the output shaft of the third motor 19, and a roller 192 is installed on the body of the lead screw 191. The top of the roller 192 is connected to the bottom of the pneumatic telescopic rod 12. The length of the lead screw 191 to the side of the third motor 19 is greater than half the length of the side of the workbench 1. It should be noted that this design allows the pneumatic telescopic rod 12 to move left and right, thereby driving the movable plate 15 on its top to move left and right. The pneumatic telescopic rod 12 allows the movable plate 15 to move up and down, so that the circuit board can be moved onto the grinding disc 33 and come into contact with it, thereby removing and grinding the burrs on the edge of the board.

[0030] like Figure 1-4 As shown in one embodiment, a dust collection baffle 4 is provided on the back of the top of the workbench 1, and an opening for collecting dust and waste residue is provided on the back of the top of the workbench 1. A collection box is provided in the inner cavity of the sealed box 11. It should be noted that a power supply and controller are also provided in the sealed box 11. The power supply and controller are electrically connected to the first motor 13, the second motor 14 and the third motor 19, respectively. A cylinder is also provided inside the sealed box, and the cylinder is connected to the pneumatic pipe of the pneumatic telescopic rod 12.

[0031] like Figure 1-4As shown in one embodiment, an electric telescopic rod is provided at one end of the top of the positioning plate 5. The number of positioning plates 5 is the same as the number of circuit board fixing devices 2, and they correspond one-to-one. It should be noted that the positioning plates 5 can be replaced as needed to adapt to circuit boards of different thicknesses and specifications.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for removing burrs from the surface of a circuit board, characterized in that, include: Workbench (1), circuit board fixing device (2), and burr grinder (3); a sealed box (11) is provided at the bottom of the workbench (1), and pneumatic telescopic rods (12) are provided on both the left and right sides of the center of the top of the workbench (1). A movable plate (15) is fixedly connected to the top of the two pneumatic telescopic rods (12). A second motor (14) is provided on one side of the top of the movable plate (15). A first transmission shaft (16) is driven to the output shaft of the second motor (14). A receiving plate (17) is rotatably inserted into the right side of the top of the first transmission shaft (16). A first motor (13) is provided on the right side of the center of the top of the workbench (1); the circuit board fixing device (2) is arranged at equal distances along the horizontal direction at the center of the bottom of the movable plate (15). 2) Includes connecting columns (22) fixed at equal distances at the bottom of the movable plate (15). One end of the top of the connecting column (22) protrudes outward and is fixedly connected to a spring hinge (23). The end of the spring hinge (23) away from the connecting column (22) is fixedly connected to a rotating clamp (24). The bottom of the connecting column (22) is rotatably inserted with a rotating shaft (25) through a bearing. A transmission belt (21) is sleeved on the side of the rotating shaft (25) away from the connecting column (22). The other side of the transmission belt (21) is sleeved together with the first transmission shaft (16) for mutual transmission. The bottom of the movable plate (15) is provided with a positioning plate (5) at equal distances along the horizontal direction. The burr grinder (3) is provided at equal distances along the horizontal direction at the center of the top of the workbench (1).

2. The burr removal device for circuit board surface according to claim 1, characterized in that, The burr grinder (3) includes a fixed base (31), and a protective plate (32) is fixedly connected to the base body at the top center of the fixed base (31). A grinding disc (33) is provided in the protective plate (32), and the center of the grinding disc (33) overlaps with the center of the protective plate (32).

3. The burr removal device for circuit board surface according to claim 2, characterized in that, The output shaft of the first motor (13) is connected to a second drive shaft (18). The shaft of the second drive shaft (18) passes through each of the burr grinders (3) and is connected to the grinding disc (33) in each of the burr grinders (3). It is also connected to the center of the protective plate (32) through a bearing sleeve.

4. The burr removal device for circuit board surface according to claim 2, characterized in that, The number of the burr grinders (3) is the same as the number of the circuit board fixing devices (2), and the grinding disc (33) in each of the burr grinders (3) is perpendicular to the circuit board fixed in each of the circuit board fixing devices (2).

5. The burr removal device for circuit board surface according to claim 1, characterized in that, A circular rubber pad is rotatably connected to the side of the rotating clamp (24) and the rotating shaft (25) that are close to each other. The front of the rotating clamp (24) is curved, and its front length is adapted to the front length of the connecting column (22).

6. The burr removal device for circuit board surface according to claim 1, characterized in that, A third motor (19) is installed on the back of the top left and right sides of the workbench (1). A lead screw (191) is connected to the output shaft of the third motor (19). A roller (192) is installed on the rod of the lead screw (191).

7. The burr removal device for a circuit board surface according to claim 6, characterized in that, The top of the roller (192) is connected to the bottom of the pneumatic telescopic rod (12), and the length of the lead screw (191) to the side of the third motor (19) is greater than half the length of the side of the worktable (1).

8. The burr removal device for a circuit board surface according to claim 6, characterized in that, The workbench (1) has a dust collection baffle (4) on the back of the top, and an opening for collecting dust and waste residue is provided on the back of the top of the workbench (1). A collection box is provided in the inner cavity of the sealed box (11).

9. A burr removal device for a circuit board surface according to claim 6, characterized in that, An electric telescopic rod is provided at one end of the top of the card slot plate (5). The number of card slot plates (5) is the same as the number of circuit board fixing devices (2), and they correspond one-to-one.

Images