Edge grinding device for printed circuit board processing

Abstract

The utility model relates to the technical field of copper-clad plate processing, and discloses an edge grinding device for printed circuit board processing, which comprises a base, the left side and the right side of the top end of the base are both fixedly connected with two fixing blocks, the inner walls of the fixing blocks are both rotatably connected with rotating shafts, and the front end of the fixing block on the right side is fixedly connected with a driving motor I; a third driving motor is fixedly connected to the top of the inner wall of the base, a rotating seat is fixedly connected to the driving end of the third driving motor, a second electric push rod is fixedly connected to the top end of the rotating seat, a lower push plate is fixedly connected to the driving end of the second electric push rod, and a second U-shaped block is connected to the front side of the top end of the base through an adjusting assembly. According to the circuit board edge grinding device, the rotating shaft is controlled by the first driving motor to drive the belt to convey the circuit board, and the circuit board is clamped, fixed and subjected to angle changing in cooperation with the electric push rod and the third driving motor, so that the circuit board can be automatically fed and ground, the production efficiency is improved, and the accident risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of copper clad laminate processing technology, and in particular to an edge grinding device for printed circuit board processing. Background Technology

[0002] Copper-clad laminate, also known as copper foil laminate, is a plate-shaped material made by impregnating electronic fiberglass cloth or other reinforcing materials with resin, covering one or both sides with copper foil, and then hot-pressing it. Various types and functions of printed circuit boards are made by selectively processing, etching, drilling, and copper plating on copper-clad laminate to create different printed circuits. During the cutting and processing of copper-clad laminate, burrs often exist on the sidewalls, which need to be polished by an edge grinding device.

[0003] A search revealed a grinding device for processing copper-clad laminates used in the production of printed circuit boards (PCBs) using publication number CN221313609U. The device includes a worktable, a first mounting frame, and a second mounting frame. A horizontally U-shaped first mounting frame is mounted on one side of the upper surface of the worktable. Electric push rods are rotatably mounted on opposite sides of the first top and bottom frames of the first mounting frame. Clamping discs are mounted on the telescopic ends of both electric push rods. A first drive mechanism is provided on the first top frame. This invention, by rotatably mounting two electric push rods and using the first drive mechanism to rotate the electric push rods and the copper-clad laminate, allows the copper-clad laminate to be ground on one side. After grinding one side of the copper-clad laminate, it can be rotated 90 degrees to switch sides, aligning the next side with the grinding roller, and then grinding can continue. This process can be repeated, completing the grinding of all sides without disassembling and adjusting the copper-clad laminate, saving time and effort and effectively improving the efficiency of copper-clad laminate edge grinding.

[0004] Based on the aforementioned patent, by rotating and installing two electric push rods, and through the first drive mechanism, the electric push rods and the copper-clad laminate can be rotated and reversed. After one side of the copper-clad laminate is polished, it can be rotated 90 degrees to switch sides, and the next side can be adjusted to align with the polishing roller to continue polishing. This process can be repeated, and all sides can be polished without disassembling and adjusting the copper-clad laminate, saving time and effort and effectively improving the efficiency of copper-clad laminate edge polishing. However, after polishing, the copper-clad laminate needs to be manually replaced by workers. After working for a long time, workers are prone to distraction while waiting for polishing, which increases the replacement time and reduces production efficiency. In addition, improper operation may cause the electric push rods to separate prematurely during polishing, resulting in the copper-clad laminate flying out and causing accidents. In order to address this technical problem, this application proposes an edge polishing device for printed circuit board processing. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grinding device for printed circuit board processing. The device is driven by a drive motor to control a rotating shaft, which in turn drives a belt to transport the circuit board. In conjunction with an electric push rod and a drive motor, the circuit board is clamped, fixed, and its angle is adjusted, allowing the circuit board to feed itself for grinding, thereby improving production efficiency and reducing the risk of accidents.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A grinding device for printed circuit board processing includes a base. Two fixing blocks are fixedly connected to the left and right sides of the top of the base. A rotating shaft is rotatably connected to the inner wall of each fixing block. A drive motor is fixedly connected to the front end of the right fixing block. A drive motor is fixedly connected to the top of the inner wall of the base. A rotating seat is fixedly connected to the driving end of the drive motor. An electric push rod is fixedly connected to the top of the rotating seat. A lower push plate is fixedly connected to the driving end of the electric push rod. A U-shaped block is connected to the front side of the top of the base through an adjustment component. A support frame is fixedly connected to the rear side of the top of the base. An upper top plate is connected to the front side of the bottom end of the support frame through a support member.

[0008] Furthermore, the two rotating shafts are connected by the inner sides of two belts, and the front end of the right rotating shaft is fixedly connected to a drive end of the drive motor.

[0009] Furthermore, the outer wall of the rotating seat is rotatably connected to the inner wall of the base, and the size of the lower push plate is the same as that of the upper top plate.

[0010] Furthermore, the adjustment assembly includes an electric slide rail fixedly connected to the front side of the top of the base, a slider slidably connected to the top of the electric slide rail, a U-shaped block fixedly connected to the top of the slider, an electric push rod fixedly connected to the front side of the inner wall of the U-shaped block, and a support frame fixedly connected to the driving end of the electric push rod.

[0011] Furthermore, the bottom end of the second support frame is slidably connected to the top end of the first U-shaped block, the front end of the second U-shaped block is fixedly connected to the rear end of the second support frame, and the top end of the second U-shaped block is fixedly connected to the second drive motor.

[0012] Furthermore, a grinding roller is fixedly connected to the driving end of the second drive motor, and the bottom end of the grinding roller is rotatably connected to the bottom of the inner wall of the second U-shaped block.

[0013] Furthermore, the support includes a collector fixedly connected to the front side of a bottom end of the support frame, a connecting rod fixedly connected to the bottom end of the collector, and the top end of the upper plate fixedly connected to the bottom end of the connecting rod.

[0014] Furthermore, a waste bin is fixedly connected to the rear end of the base, a fan is provided on the top left side of the waste bin, a collection pipe is provided on the top right side of the waste bin, and the other end of the collection pipe is provided at the rear end of the collector.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, a drive motor controls the rotating shaft, which uses a drive belt to transport the circuit board. In conjunction with an electric push rod and a drive motor, the circuit board is clamped, fixed, and its angle is changed, enabling the circuit board to feed and grind itself, thereby improving production efficiency and reducing the risk of accidents.

[0017] 2. In this utility model, during the edge grinding process, the start-up fan creates negative pressure inside the waste bin, which, in conjunction with the collection pipe, generates suction in the collector, sending the waste generated during edge grinding into the waste bin for collection. Furthermore, for circuit boards of different sizes, the position of the grinding roller can be adjusted by pushing the support frame with an electric push rod to accommodate edge grinding of different sized circuit boards. Attached Figure Description

[0018] Figure 1 This utility model proposes a three-dimensional edge grinding device for printed circuit board processing. Figure 1 ;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This utility model proposes a three-dimensional edge grinding device for printed circuit board processing. Figure 2 ;

[0021] Figure 4 This is a cross-sectional view of the base in a grinding device for printing circuit board processing proposed in this utility model.

[0022] Legend:

[0023] 1. Base; 2. Electric slide rail; 3. Drive motor one; 4. Fixing block; 5. Rotating shaft; 6. Collection pipe; 7. Support frame one; 8. Collector; 9. Slider; 10. U-shaped block one; 11. Electric push rod one; 12. Support frame two; 13. U-shaped block two; 14. Drive motor two; 15. Grinding roller; 16. Waste bin; 17. Fan; 18. Drive motor three; 19. Rotating seat; 20. Electric push rod two; 21. Lower push plate; 22. Connecting rod; 23. Top plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of an edge-grinding device for printed circuit board processing, comprising a base 1, with two fixing blocks 4 fixedly connected to the left and right sides of the top of the base 1, and rotating shafts 5 rotatably connected to the inner walls of the fixing blocks 4. A drive motor 3 is fixedly connected to the front end of the right fixing block 4, and the two rotating shafts 5 are connected by two belts on their inner sides. The front end of the right rotating shaft 5 is fixedly connected to the drive end of the drive motor 3. A third drive motor 18 is fixedly connected to the top of the inner wall of the base 1, and a rotating seat 19 is fixedly connected to the drive end of the third drive motor 18. An electric push rod 20 is fixedly connected to the top of the seat 19. A lower push plate 21 is fixedly connected to the drive end of the electric push rod 20. The outer wall of the rotating seat 19 is rotatably connected to the inner wall of the base 1. The size of the lower push plate 21 is the same as that of the upper top plate 23. A support frame 7 is fixedly connected to the rear side of the top of the base 1. The upper top plate 23 is connected to the front side of the bottom of the support frame 7 through a support member. The support member includes a collector 8 fixedly connected to the front side of the bottom of the support frame 7. A connecting rod 22 is fixedly connected to the bottom of the collector 8. The top of the upper top plate 23 is fixedly connected to the bottom of the connecting rod 22.

[0026] Specifically, drive motor 3 is started to control the rotation of shaft 5, which drives the belt to smoothly transport the circuit board. When the circuit board reaches the top of the lower push plate 21, drive motor 3 immediately stops working. Then, electric push rod 20 responds quickly, pushing the lower push plate 21 to lift the circuit board. The upper plate 23 then securely clamps the circuit board. Next, drive motor 24 starts, driving the grinding roller 15 to rotate. At the same time, electric slide rail 2 guides the slider 9 to slide on it, grinding the edge of the circuit board. After grinding one side, electric push rod 20 first lowers the lower push plate 21 to the predetermined position. Then, drive motor 318 is activated, driving the rotating seat 19 and electric push rod 20 to rotate as a whole. Then, electric push rod 20 raises the lower push plate again, realizing the automatic edge changing of the circuit board. After the entire edge grinding process is completed, electric push rod 20 resets, smoothly releasing the circuit board back onto the belt for transport and preparing for the edge grinding of the next circuit board. This automated feeding and edge grinding process not only significantly improves production efficiency but also greatly reduces the potential risk of accidents.

[0027] Reference Figure 2-4A U-shaped block 13 is connected to the front top of the base 1 via an adjustment assembly. The adjustment assembly includes an electric slide rail 2 fixedly connected to the front top of the base 1. A slider 9 is slidably connected to the top of the electric slide rail 2. A U-shaped block 10 is fixedly connected to the top of the slider 9. An electric push rod 11 is fixedly connected to the front inner wall of the U-shaped block 10. A support frame 12 is fixedly connected to the drive end of the electric push rod 11. The bottom end of the support frame 12 is slidably connected to the top of the U-shaped block 10. The front end of the U-shaped block 13 is fixedly connected to the rear end of the support frame 12. A drive motor 14 is fixedly connected to the top of the U-shaped block 13. A grinding roller 15 is fixedly connected to the drive end of the drive motor 14. The bottom end of the grinding roller 15 is rotatably connected to the bottom of the inner wall of the U-shaped block 13. A waste bin 16 is fixedly connected to the rear end of the base 1. A fan 17 is provided on the left side of the top of the waste bin 16. A collection pipe 6 passes through the right side of the top of the waste bin 16. The other end of the collection pipe 6 passes through the rear end of the collector 8.

[0028] Specifically, during the edge grinding process, the start-up fan 17 creates negative pressure inside the waste bin 16, which, in conjunction with the collection pipe 6, enables the collector 8 to generate suction, sending the waste generated during edge grinding into the waste bin 16 for collection. Furthermore, for circuit boards of different sizes, the position of the grinding roller 15 can be adjusted by pushing the support frame 12 with the electric push rod 11 to accommodate the edge grinding of circuit boards of different sizes.

[0029] Working principle: The drive motor 3 is started to control the rotation of the shaft 5, which causes the belt on the shaft 5 to transport the circuit board. When the circuit board is delivered to the top of the lower push plate 21, the drive motor 3 stops working and the electric push rod 20 drives the lower push plate 21 to lift the circuit board. The upper plate 23 fixes the circuit board. The drive motor 14 controls the rotation of the grinding roller 15 to grind the edge of the circuit board. After one side is finished, the electric push rod 20 can be controlled to descend a certain distance. Then, the drive motor 18 drives the rotating seat 19 to rotate and the electric push rod 20 rises again to change the edge of the circuit board. After the edge grinding is completed, the electric push rod 20 is reset to return the circuit board to the belt for transport. During the edge grinding process, the fan 17 and the collection pipe 6 can make the collector 8 generate suction to suck the waste generated by edge grinding into the waste box 16 for collection. For circuit boards of different sizes, the position of the grinding roller 15 can be adjusted by the electric push rod 11 pushing the support frame 2 12.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding device for processing printed circuit boards, characterized in that, The base (1) includes two fixed blocks (4) fixedly connected to the top left and right sides of the base (1). The inner walls of the fixed blocks (4) are rotatably connected to the shafts (5). The front end of the right fixed block (4) is fixedly connected to a drive motor (3). The top of the inner wall of the base (1) is fixedly connected to a drive motor (18). The drive end of the drive motor (18) is fixedly connected to a rotating seat (19). The top of the rotating seat (19) is fixedly connected to an electric push rod (20). The drive end of the electric push rod (20) is fixedly connected to a lower push plate (21). The front side of the top of the base (1) is connected to a U-shaped block (13) through an adjustment component. The rear side of the top of the base (1) is fixedly connected to a support frame (7). The front side of the bottom end of the support frame (7) is connected to an upper top plate (23) through a support member.

2. The edge grinding device for printed circuit board processing according to claim 1, characterized in that: The two rotating shafts (5) are connected by the inner sides of two belts, and the front end of the right rotating shaft (5) is fixedly connected to the drive end of the drive motor (3).

3. The edge grinding device for printed circuit board processing according to claim 1, characterized in that: The outer wall of the rotating seat (19) is rotatably connected to the inner wall of the base (1), and the size of the lower push plate (21) is the same as that of the upper top plate (23).

4. The edge grinding device for printed circuit board processing according to claim 1, characterized in that: The adjustment assembly includes an electric slide rail (2) fixedly connected to the front of the top of the base (1), a slider (9) slidably connected to the top of the electric slide rail (2), a U-shaped block (10) fixedly connected to the top of the slider (9), an electric push rod (11) fixedly connected to the front of the inner wall of the U-shaped block (10), and a support frame (12) fixedly connected to the driving end of the electric push rod (11).

5. The edge grinding device for printed circuit board processing according to claim 4, characterized in that: The bottom end of the second support frame (12) is slidably connected to the top end of the first U-shaped block (10), the front end of the second U-shaped block (13) is fixedly connected to the rear end of the second support frame (12), and the top end of the second U-shaped block (13) is fixedly connected to the second drive motor (14).

6. The edge grinding device for printed circuit board processing according to claim 5, characterized in that: The driving end of the second drive motor (14) is fixedly connected to a grinding roller (15), and the bottom end of the grinding roller (15) is rotatably connected to the bottom of the inner wall of the second U-shaped block (13).

7. The edge grinding device for printed circuit board processing according to claim 1, characterized in that: The support includes a collector (8) fixedly connected to the front side of the bottom end of the support frame (7), and a connecting rod (22) is fixedly connected to the bottom end of the collector (8). The top end of the upper plate (23) is fixedly connected to the bottom end of the connecting rod (22).

8. The edge grinding device for printed circuit board processing according to claim 1, characterized in that: The base (1) is fixedly connected to a waste bin (16) at its rear end. A fan (17) is provided on the left side of the top of the waste bin (16). A collection pipe (6) is provided on the right side of the top of the waste bin (16). The other end of the collection pipe (6) is provided at the rear end of the collector (8).

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