Edge grinding equipment for PCB (Printed Circuit Board)

Abstract

The invention belongs to the technical field of PCB edge grinding devices, in particular to edge grinding equipment for a PCB, and provides the following scheme for solving the problems existing in the prior art: the edge grinding equipment comprises a base, a grinding mechanism is arranged at the top of the base, and the grinding mechanism comprises at least four moving plates uniformly arranged above the base; a movable groove is formed between the two sides of the movable plate, a third motor is fixedly connected between one end of the top inner wall and one end of the bottom inner wall of the movable groove, and an output shaft of the third motor is fixedly connected with a lead screw. A PCB is moved to the position above a guide rail through a moving plate, a second motor is started, the second motor drives a chain wheel to rotate, the chain wheel drives a chain to rotate, the chain drives a connecting frame to move, the connecting frame drives a moving frame to move, the moving frame drives a moving plate to move, and the moving plate drives a side grinding block and an inclined grinding block to move; and when the side grinding blocks and the inclined grinding blocks pass through the side faces of the PCB, the side edges, the upper corners and the lower corners of the PCB are ground correspondingly.

Description

Technical Field

[0001] The invention relates to the technical field of PCB circuit board edge grinding devices, and in particular to an edge grinding device for a PCB circuit board. Background Art

[0002] PCB circuit board edge grinding is the process of fine grinding and polishing the edge burrs, uneven parts and possible minor defects produced after the edge position is cut.

[0003] After searching, the invention patent with the publication number of CN118456169A is named as a PCB circuit board edge grinding device. The patented device can grind the circuit board once while reducing the site occupation area through the edge grinding component, thereby reducing the process and operation steps and improving the processing efficiency. When in use, the circuit board will be placed on the top of the conveyor belt. At this time, the motor is started to cause the second screw to rotate, thereby causing the movable block to drive the fixed cylinder to move. At this time, one side of the U-shaped block will fit with one side of the circuit board. At this time, the motor is started to cause the active tooth to drive the linkage tooth to rotate, thereby causing the rotating frame to drive the U-shaped block to rotate. At this time, by rotating the U The U-shaped block causes the sandpaper on one side of the U-shaped block to grind the side of the circuit board, thereby achieving the edge grinding effect and completing the grinding of the side of the circuit board at one time, thereby avoiding the trouble of adjusting the position of the circuit board for many times during traditional grinding. At the same time, a spring is arranged inside the fixed cylinder, when the U-shaped block rotates to the short side of the circuit board, the U-shaped block will be squeezed. At this time, through the action of the spring, the rebound rod will drive the U-shaped block to contract, thereby causing the U-shaped block to grind all four sides of the circuit board. At the same time, by arranging the U-shaped block for circular rotation grinding, the occupied area can also be reduced, avoiding the problem of excessive occupied area caused by the need to lengthen the conveying roller during traditional grinding.

[0004] However, the patented device may not be able to stick closely to the PCB when grinding the PCB due to slight edge bending caused by different situations when the PCB is cut, thereby affecting the grinding effect of the device on the PCB. Summary of the invention

[0005] Based on the technical problems existing in the prior art, the present invention proposes an edge grinding device for a PCB circuit board.

[0006] The present invention proposes an edge grinding device for a PCB circuit board, comprising a base, a grinding mechanism is arranged on the top of the base, the grinding mechanism comprises at least four movable plates evenly arranged above the base, a movable groove is opened between the two sides of the movable plate, a motor three is fixedly connected between one end of the top inner wall of the movable groove and one end of the bottom inner wall, the output shaft of the motor three is fixedly connected to a screw rod, the circumferential side surface of the screw rod is threadedly connected to a movable block, one end of the movable block extends to the outside of the movable plate, the tops of at least two movable blocks located on both sides of the top of the base are fixedly connected to side grinding blocks, and the tops of at least two other movable blocks are fixedly connected to oblique grinding blocks.

[0007] Preferably, a collecting groove aligned with the movable plate is provided on the top of the base, a partition is fixedly connected between the inner walls on both sides of the collecting groove and between the two inner walls, and openings are evenly provided between the top and bottom of the partition.

[0008] Preferably, the top of the partition is fixedly connected to a support seat aligned with the movable plate, the top of the support seat is slidably connected to a chain, and the top of the partition is fixedly connected to motor 2.

[0009] Preferably, the output shaft of the second motor is fixedly connected to a sprocket aligned with the chain, and the circumferential side surface of the sprocket is meshingly connected to the circumferential side surface of the chain.

[0010] Preferably, the inner walls and two sides of the collecting trough are evenly fixedly connected with connecting plates, the other end of the connecting plate is fixedly connected with a guide rail aligned with the chain, and both sides of the guide rail are slidably connected with a movable frame aligned with the movable plate.

[0011] Preferably, the top of the moving frame is fixedly connected to the bottom of the moving plate, the bottom of the moving frame is fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to the top of the chain.

[0012] Preferably, a support frame is fixedly connected to the top of the base, a fixing frame aligned with the movable plate is fixedly connected to the top of the support frame, and at least four movable grooves are evenly arranged between the top and bottom of the fixing frame.

[0013] Preferably, the side inner wall of the movable groove is fixedly connected with a second cylinder body, the piston shaft of the second cylinder body is fixedly connected with a movable block aligned with the movable groove, and one side of the movable block is slidably connected to one side inner wall of the movable groove.

[0014] Preferably, a cylinder body 1 aligned with the moving plate is fixedly connected to the bottom of the moving block, and a piston shaft of the cylinder body 1 is fixedly connected to the moving box.

[0015] Preferably, a motor 1 is fixedly connected between the inner walls on both sides of the moving box, the output shaft of the motor 1 is fixedly connected to a rotating disk located outside the moving box, and a suction cup is fixedly connected to the bottom of the rotating disk.

[0016] The beneficial effects of the present invention are:

[0017] The PCB circuit board is moved to the top of the guide rail through the provided moving plate, and the motor 2 is started. The motor 2 drives the sprocket to rotate, the sprocket drives the chain to rotate, the chain drives the connecting frame to move, the connecting frame drives the moving frame to move, the moving frame drives the moving plate to move, and the moving plate drives the side grinding block and the bevel grinding block to move, so that the side grinding block and the bevel grinding block respectively grind the side and upper and lower corners of the PCB circuit board when passing the side of the PCB circuit board, and the PCB circuit board is rotated so that the side grinding block and the bevel grinding block fully grind the four sides of the PCB circuit board, which is conducive to the device fully grinding the PCB circuit board and prevents the device from being unable to grind the upper and lower corners of the PCB circuit board, affecting the device's grinding effect on the PCB circuit board, and the motor 3 is started. The motor 3 drives the screw to rotate, and the screw drives the movable block to move, and the movable block The side grinding block and the bevel grinding block are driven close to the PCB circuit board, so that the side grinding block and the bevel grinding block are tightly attached to the PCB circuit board, which is beneficial to prevent the device from being unable to tightly attach to the PCB circuit board when grinding the PCB circuit board due to slight edge bending in different situations caused by shearing the PCB circuit board, thereby affecting the grinding effect of the device on the PCB circuit board, starting the second cylinder body, the second cylinder body drives the moving block to move, the moving block drives the first cylinder body to move, the first cylinder body drives the moving box to move, the moving box drives the suction cup to move, so that the suction cup moves close to the remaining PCB circuit boards to be polished, starting the first cylinder body, the first cylinder body drives the suction cup to adsorb the PCB circuit board, and when the device is grinding the PCB circuit board, starting the first motor, and the first motor drives the PCB circuit board to rotate and change sides and continue grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an edge grinding device for a PCB circuit board proposed by the present invention;

[0019] Figure 2 A schematic diagram of the internal structure of an edge grinding device for a PCB circuit board proposed by the present invention;

[0020] Figure 3 A schematic diagram of the partial structure of an edge grinding device for a PCB circuit board proposed by the present invention;

[0021] Figure 4 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 5 A schematic diagram of the structure of a side grinding block of an edge grinding device for a PCB circuit board proposed by the present invention;

[0023] Figure 6 The present invention provides a schematic diagram of the structure of an oblique grinding block for an edge grinding device for a PCB circuit board.

[0024] In the figure: 1-base, 2-collecting tank, 3-opening, 4-partition, 5-connecting plate, 6-guide rail, 7-suction cup, 8-movable box, 9-motor one, 10-cylinder body one, 11-moving block, 12-fixed frame, 13-moving tank, 14-rotating disk, 15-cylinder body two, 16-support frame, 17-moving plate, 18-moving frame, 19-connecting frame, 20-chain, 21-support seat, 22-motor two, 23-sprocket, 24-motor three, 25-screw, 26-movable tank, 27-movable block, 28-side grinding block, 29-oblique grinding block. DETAILED DESCRIPTION

[0025] Example, see Figure 1-6 A grinding device for a PCB circuit board comprises a base 1, a grinding mechanism is arranged on the top of the base 1, the grinding mechanism comprises at least four movable plates 17 evenly arranged above the base 1, a movable groove 26 is opened between the two sides of the movable plate 17, a motor 3 24 is fixedly connected between one end of the top inner wall and one end of the bottom inner wall of the movable groove 26, a screw rod 25 is fixedly connected to the output shaft of the motor 3 24, a movable block 27 is threadedly connected to the circumferential side of the screw rod 25, one end of the movable block 27 extends to the outside of the movable plate 17, side grinding blocks 28 are fixedly connected to the tops of at least two movable blocks 27 on both sides of the top of the base 1, and oblique grinding blocks 29 are fixedly connected to the tops of at least two other movable blocks 27.

[0026] In the present invention, a collecting tank 2 aligned with the movable plate 17 is provided on the top of the base 1, a partition 4 is fixedly connected between the inner walls on both sides of the collecting tank 2 and between the two inner walls, and openings 3 are evenly provided between the top and bottom of the partition 4.

[0027] The top of the partition 4 is fixedly connected to a support seat 21 aligned with the moving plate 17, the top of the support seat 21 is slidably connected to a chain 20, and the top of the partition 4 is fixedly connected to a motor 22.

[0028] The output shaft of the second motor 22 is fixedly connected with a sprocket 23 aligned with the chain 20 , and the circumferential side surface of the sprocket 23 is meshedly connected to the circumferential side surface of the chain 20 .

[0029] The inner walls and two surfaces of the collecting tank 2 are evenly fixedly connected with connecting plates 5, and the other end of the connecting plate 5 is fixedly connected with a guide rail 6 aligned with the chain 20, and the two sides of the guide rail 6 are slidably connected with a moving frame 18 aligned with the moving plate 17.

[0030] The top of the moving frame 18 is fixedly connected to the bottom of the moving plate 17 , the bottom of the moving frame 18 is fixedly connected to a connecting frame 19 , and the bottom of the connecting frame 19 is fixedly connected to the top of the chain 20 .

[0031] A support frame 16 is fixedly connected to the top of the base 1 , a fixed frame 12 aligned with the movable plate 17 is fixedly connected to the top of the support frame 16 , and at least four movable grooves 13 are evenly arranged between the top and bottom of the fixed frame 12 .

[0032] The side inner wall of the moving groove 13 is fixedly connected with the cylinder body 15 , and the piston shaft of the cylinder body 15 is fixedly connected with the moving block 11 aligned with the moving groove 13 , and one side of the moving block 11 is slidably connected to one side inner wall of the moving groove 13 .

[0033] The bottom of the moving block 11 is fixedly connected to a cylinder body 10 aligned with the moving plate 17, and the piston shaft of the cylinder body 10 is fixedly connected to the moving box 8.

[0034] A motor 9 is fixedly connected between the inner walls on both sides of the moving box 8, and the output shaft of the motor 9 is fixedly connected to a rotating disk 14 located outside the moving box 8, and the bottom of the rotating disk 14 is fixedly connected to a suction cup 7.

[0035] When the present invention is used: the PCB circuit board is moved to the top of the guide rail 6, the motor 22 is started, the motor 22 drives the sprocket 23 to rotate, the sprocket 23 drives the chain 20 to rotate, the chain 20 drives the connecting frame 19 to move, the connecting frame 19 drives the moving frame 18 to move, the moving frame 18 drives the moving plate 17 to move, the moving plate 17 drives the side grinding block 28 and the bevel grinding block 29 to move, so that the side grinding block 28 and the bevel grinding block 29 grind the side and the upper and lower corners of the PCB circuit board respectively when passing the side of the PCB circuit board, the PCB circuit board is rotated so that the side grinding block 28 and the bevel grinding block 29 fully grind the four sides of the PCB circuit board, which is conducive to the device fully grinding the PCB circuit board and prevents the device from being unable to grind the upper and lower corners of the PCB circuit board, affecting the device The grinding effect of the PCB circuit board, the motor three 24 is started, the motor three 24 drives the screw rod 25 to rotate, the screw rod 25 drives the movable block 27 Move, the movable block 27 drives the side grinding block 28 and the oblique grinding block 29 to approach the PCB circuit board, so that the side grinding block 28 and the oblique grinding block 29 are closely attached to the PCB circuit board, which is beneficial to prevent the device from being unable to closely attach to the PCB circuit board when grinding the PCB circuit board due to slight edge bending in different situations caused by shearing the PCB circuit board, affecting the grinding effect of the device on the PCB circuit board, start the cylinder body 15, the cylinder body 15 drives the moving block 11 to move, the moving block 11 drives the cylinder body 10 to move, the cylinder body 10 drives the moving box 8 to move, the moving box 8 drives the suction cup 7 to move, so that the suction cup 7 moves close to the remaining PCB circuit boards to be polished, start the cylinder body 10, the cylinder body 10 drives the suction cup 7 to adsorb the PCB circuit board, and when the device is grinding the PCB circuit board, start the motor 9, and the motor 9 drives the PCB circuit board to rotate and change sides and continue grinding.

[0036] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An edge grinding device for a PCB circuit board, comprising a base (1), characterized in that: A grinding mechanism is arranged on the top of the base (1), and the grinding mechanism comprises at least four movable plates (17) evenly arranged above the base (1), a movable groove (26) is opened between the two sides of the movable plate (17), a motor three (24) is fixedly connected between one end of the top inner wall and one end of the bottom inner wall of the movable groove (26), a screw rod (25) is fixedly connected to the output shaft of the motor three (24), a movable block (27) is threadedly connected to the circumferential side surface of the screw rod (25), one end of the movable block (27) extends to the outside of the movable plate (17), the tops of at least two movable blocks (27) located on both sides of the top of the base (1) are fixedly connected to side grinding blocks (28), and the tops of at least two other movable blocks (27) are fixedly connected to oblique grinding blocks (29).

2. The edge grinding device for PCB circuit board according to claim 1, characterized in that: The top of the base (1) is provided with a collecting trough (2) aligned with the movable plate (17), a partition (4) is fixedly connected between the inner walls on both sides of the collecting trough (2) and between the two inner walls, and openings (3) are evenly provided between the top and bottom of the partition (4).

3. The edge grinding device for PCB circuit board according to claim 2, characterized in that: The top of the partition (4) is fixedly connected to a support seat (21) aligned with the moving plate (17), the top of the support seat (21) is slidably connected to a chain (20), and the top of the partition (4) is fixedly connected to a second motor (22).

4. The edge grinding device for PCB circuit board according to claim 3, characterized in that: The output shaft of the second motor (22) is fixedly connected to a sprocket (23) aligned with the chain (20), and the circumferential side surface of the sprocket (23) is meshedly connected to the circumferential side surface of the chain (20).

5. The edge grinding device for PCB circuit board according to claim 4, characterized in that: The inner walls and two surfaces of the collecting trough (2) are evenly and fixedly connected with connecting plates (5), the other end of the connecting plate (5) is fixedly connected with a guide rail (6) aligned with the chain (20), and the two sides of the guide rail (6) are slidably connected with a movable frame (18) aligned with the movable plate (17).

6. The edge grinding device for PCB circuit board according to claim 5, characterized in that: The top of the moving frame (18) is fixedly connected to the bottom of the moving plate (17), the bottom of the moving frame (18) is fixedly connected to a connecting frame (19), and the bottom of the connecting frame (19) is fixedly connected to the top of the chain (20).

7. The edge grinding device for PCB circuit board according to claim 5, characterized in that: The top of the base (1) is fixedly connected to a support frame (16), the top of the support frame (16) is fixedly connected to a fixed frame (12) aligned with the movable plate (17), and at least four movable grooves (13) are evenly arranged between the top and bottom of the fixed frame (12).

8. The edge grinding device for PCB circuit board according to claim 7, characterized in that: The side inner wall of the movable groove (13) is fixedly connected to a second cylinder body (15), the piston shaft of the second cylinder body (15) is fixedly connected to a movable block (11) aligned with the movable groove (13), and one side of the movable block (11) is slidably connected to one side inner wall of the movable groove (13).

9. The edge grinding device for PCB circuit board according to claim 8, characterized in that: The bottom of the moving block (11) is fixedly connected to a cylinder body (10) aligned with the moving plate (17), and the piston shaft of the cylinder body (10) is fixedly connected to a moving box (8).

10. The edge grinding device for PCB circuit board according to claim 9, characterized in that: A motor (9) is fixedly connected between the inner walls of both sides of the moving box (8), the output shaft of the motor (9) is fixedly connected to a rotating disk (14) located outside the moving box (8), and the bottom of the rotating disk (14) is fixedly connected to a suction cup (7).

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