A polishing device for PCB processing

Abstract

The utility model discloses a kind of grinding devices for PCB circuit board processing, belong to PCB circuit board processing technical field;It includes base and two side plates fixedly connected on base, two the side plate is rotatably connected with reciprocating screw assembly, one of wherein The side plate is fixedly connected with first motor, and first motor output end and one reciprocating screw assembly are fixedly connected, two The reciprocating screw assembly is driven connection by first belt pulley assembly, sliding rail is opened on the side plate, the middle of the sliding rail is fixedly connected with baffle, the baffle is rotatably connected with reciprocating screw assembly.The utility model drives two sides of polishing equipment to be mutually close by reciprocating screw assembly, carries out double-sided polishing, shortens half polishing time, greatly increases the polishing efficiency of PCB circuit board, is conducive to subsequent PCB circuit board processing, production speed is greatly improved, is conducive to adapting market to the large demand of PCB circuit board.

Description

Technical Field

[0001] This utility model relates to the field of PCB circuit board processing technology, and in particular to a grinding device for PCB circuit board processing. Background Technology

[0002] PCB manufacturing is a complex manufacturing process that integrates precision mechanics, photochemistry, electrochemistry and other technologies. It transforms abstract circuit design drawings into physical, highly reliable interconnect structures through a series of precise processes. As the cornerstone of the modern electronics industry, PCB is the material basis for the stable operation of all smart devices. In the PCB manufacturing process, the grinding device is an important component. Existing grinding equipment can only grind one side of a PCB circuit board, resulting in low grinding efficiency. It requires grinding the other side twice, which greatly increases grinding time and is not conducive to efficient PCB circuit board production. Furthermore, insufficient grinding may occur during PCB circuit board grinding, resulting in a low pass rate and the production of defective products with uneven grinding and incomplete grinding. This significantly increases the cost of PCB circuit board production and is not conducive to sustainable production. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grinding device for PCB circuit board processing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A grinding device for PCB circuit board processing includes a base and two side plates fixedly connected to the base. Reciprocating screw assemblies are rotatably connected to the two side plates. A first motor is fixedly connected to one of the side plates, and the output end of the first motor is fixedly connected to one of the reciprocating screw assemblies. The two reciprocating screw assemblies are connected via a first pulley assembly. A slide rail is provided on each side plate, and a partition is fixedly connected in the middle of the slide rail. The partition is rotatably connected to the reciprocating screw assemblies. Each reciprocating screw assembly has two reciprocating rings mechanically matched. A connecting block is fixedly connected to one side of each reciprocating ring. A sliding sleeve is slidably connected between the two connecting blocks, and a spring is fixedly connected between the sliding sleeve and the connecting block.

[0005] Preferably, a first rotating shaft and a second rotating shaft are rotatably connected to the sliding sleeve, the first rotating shaft and the second rotating shaft are connected by a second pulley assembly, a second motor is fixedly connected to the sliding sleeve, the output end of the second motor is fixedly connected to the second rotating shaft, and a protrusion is fixedly connected to the second rotating shaft.

[0006] Preferably, the first rotating shaft rotatably passes through the sliding sleeve, a connecting plate is fixedly connected to one side of the first rotating shaft, a circular plate is fixedly connected to one side of the connecting plate, a third rotating shaft is rotatably connected to the circular plate, a third motor is mounted on one side of the circular plate, the output end of the third motor and the third rotating shaft are connected by a third belt pulley assembly, and multiple grinding rods are fixedly connected to the third rotating shaft.

[0007] Preferably, a fourth rotating shaft is rotatably connected to the base, the reciprocating screw assembly and the fourth rotating shaft are connected by a fourth pulley assembly, and multiple cleaning rods are fixedly connected to the fourth rotating shaft.

[0008] Preferably, each of the two side plates is fixedly connected to a guide rail on one side.

[0009] Preferably, a brush is installed on the lower side of the sweeping rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a reciprocating screw assembly to drive the grinding equipment on both sides to move closer to each other for double-sided grinding, which shortens the grinding time by half, greatly increases the grinding efficiency of PCB circuit boards, facilitates subsequent PCB circuit board processing, greatly improves production speed, and helps to meet the market's large demand for PCB circuit boards. 2. Furthermore, while polishing the PCB circuit board, the polishing rod rotates around the first axis and wobbles left and right under the action of the convex plate, thereby achieving thorough polishing of the PCB circuit board, improving the polishing qualification rate of the PCB circuit board, and greatly reducing production costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a grinding device for PCB circuit board processing proposed in this utility model; Figure 2 This is a schematic diagram of the reciprocating ring, sliding sleeve, and spring in a grinding device for PCB circuit board processing proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the grinding rod, the circular plate, and the third motor in a grinding device for PCB circuit board processing proposed in this utility model.

[0012] In the diagram: 1. Base, 2. Side plate, 3. Reciprocating screw assembly, 4. First motor, 5. First pulley assembly, 6. Partition plate, 7. Reciprocating ring, 8. Slide rail, 9. Connecting block, 10. Sliding sleeve, 11. Spring, 12. First rotating shaft, 13. Second pulley assembly, 14. Second motor, 15. Protruding plate, 16. Second rotating shaft, 17. Connecting plate, 18. Circular plate, 19. Third motor, 20. Third pulley assembly, 21. Third rotating shaft, 22. Grinding rod, 23. Fourth pulley assembly, 24. Sweeping rod, 25. Fourth rotating shaft. Detailed Implementation

[0013] Reference Figures 1-3 A PCB grinding device includes a base 1 and two side plates 2 fixedly connected to the base 1. A reciprocating screw assembly 3 is rotatably connected to each side plate 2. The reciprocating screw assembly 3 consists of two reciprocating screws. A partition 6 has one reciprocating screw above and one below it. The two reciprocating screws are fixedly connected by a connecting rod, which rotatably passes through the partition 6. Each reciprocating screw is mechanically fitted with a reciprocating ring 7. A guide rail is fixedly connected to one side of each side plate 2. The PCB to be ground slides to a specific position under the guidance of the guide rail for grinding. A first motor 4 is fixedly connected to one side plate 2, and the first motor 4 is powered by an external power supply. The first motor 4 is fixedly connected to one of the reciprocating screw assemblies 3. The two reciprocating screw assemblies 3 are connected by transmission through the first belt pulley assembly 5. The side plate 2 has a slide rail 8. The slide rail 8 is fixedly connected to the middle of the slide rail 8. The partition 6 is rotatably connected to the reciprocating screw assembly 3. The reciprocating ring 7 is fixedly connected to one side of the connecting block 9. The two connecting blocks 9 are slidably connected to the sliding sleeve 10. The sliding sleeve 10 and the connecting block 9 are fixedly connected to the spring 11. The base 1 is rotatably connected to the fourth rotating shaft 25. The reciprocating screw assembly 3 and the fourth rotating shaft 25 are connected by transmission through the fourth belt pulley assembly 23. The fourth rotating shaft 25 is fixedly connected to multiple sweeping rods 24. The sweeping rods 24 are equipped with brushes on their lower sides. A first rotating shaft 12 and a second rotating shaft 16 are rotatably connected to the sliding sleeve 10. The first rotating shaft 12 and the second rotating shaft 16 are connected by a second pulley assembly 13. A second motor 14 is fixedly connected to the sliding sleeve 10. The second motor 14 is powered by an external power source. The output end of the second motor 14 is fixedly connected to the second rotating shaft 16. A protruding plate 15 is fixedly connected to the second rotating shaft 16. The first rotating shaft 12 rotatably passes through the sliding sleeve 10. A connecting plate 17 is fixedly connected to one side of the first rotating shaft 12. A circular plate 18 is fixedly connected to one side of the connecting plate 17. A third rotating shaft 21 is rotatably connected to the circular plate 18. A third motor 19 is mounted on one side of the circular plate 18. 9 is powered by an external power supply. The output end of the third motor 19 and the third shaft 21 are connected by the third pulley assembly 20. The first pulley assembly 5, the second pulley assembly 13, the third pulley assembly 20 and the fourth pulley assembly 23 are all composed of belts, hubs, rims and spokes. The hub is directly mounted on the shaft to ensure synchronous rotation and transmit torque. The rim is used to guide the belt. The spokes are the supporting parts that connect the hub and the rim. The whole assembly is used to transmit the movement between the shafts. This is existing technology and will not be described in detail. Multiple grinding rods 22 are fixedly connected to the third shaft 21. The grinding rods 22 contact the PCB circuit board and perform grinding.

[0014] In this invention, when a PCB circuit board needs to be polished, the unpolished PCB circuit board is first moved continuously from one side of the guide rail to the other side. Simultaneously, the first motor 4, the second motor 14, and the third motor 19 are started. The output of the first motor 4 drives one of the reciprocating lead screw assemblies 3 to rotate. This reciprocating lead screw assembly 3 drives the other reciprocating lead screw assembly 3 to rotate via the first pulley assembly 5. Each reciprocating lead screw assembly 3 drives two upper and lower reciprocating rings 7 to move, and the two reciprocating rings 7 simultaneously move closer or further apart. The reciprocating rings 7 drive the connecting block 9 to move, and the connecting block 9 drives the sliding sleeve 10 and the spring 11 to move, thereby achieving the polishing of PCB circuit boards of different thicknesses. The output of the second motor 14 drives the second rotating shaft 16 to rotate. The second rotating shaft 16 drives the convex plate 15 to rotate, and the convex plate 15 continuously abuts against the side plate 2, thereby causing the sliding sleeve 10 to sway under the action of the spring 11, making the polishing more thorough. At the same time, the second rotating shaft 16 drives the first rotating shaft 12 to rotate through the second belt pulley assembly 13. The first rotating shaft 12 drives the connecting plate 17 to rotate, and the connecting plate 17 drives the circular plate 18 to rotate around the first rotating shaft 12. The output end of the third motor 19 drives the third rotating shaft 21 to rotate through the third belt pulley assembly 20. The third rotating shaft 21 drives the polishing rod 22 to rotate. The polishing rod 22 contacts the PCB circuit board and polishes it. At the same time, the reciprocating screw assembly 3 drives the fourth rotating shaft 25 to rotate through the fourth belt pulley assembly 23. The fourth rotating shaft 25 drives the cleaning rod 24 to rotate, so as to clean the polishing debris on the base 1 in a timely manner.

Claims

1. A grinding device for PCB circuit board processing, comprising a base (1) and two side plates (2) fixedly connected to the base (1), characterized in that, Two reciprocating screw assemblies (3) are rotatably connected to the two side plates (2). A first motor (4) is fixedly connected to one of the side plates (2). The output end of the first motor (4) is fixedly connected to one of the reciprocating screw assemblies (3). The two reciprocating screw assemblies (3) are connected by transmission through a first pulley assembly (5). A slide rail (8) is opened on the side plate (2). A partition plate (6) is fixedly connected in the middle of the slide rail (8). The partition plate (6) is rotatably connected to the reciprocating screw assembly (3). Two reciprocating rings (7) are mechanically matched on each reciprocating screw assembly (3). A connecting block (9) is fixedly connected to one side of the reciprocating ring (7). A sliding sleeve (10) is slidably connected between the two connecting blocks (9). A spring (11) is fixedly connected between the sliding sleeve (10) and the connecting block (9).

2. The PCB circuit board grinding device according to claim 1, characterized in that, The sliding sleeve (10) is rotatably connected to a first rotating shaft (12) and a second rotating shaft (16). The first rotating shaft (12) and the second rotating shaft (16) are connected by a second pulley assembly (13). The sliding sleeve (10) is fixedly connected to a second motor (14). The output end of the second motor (14) is fixedly connected to the second rotating shaft (16). The second rotating shaft (16) is fixedly connected to a protruding plate (15).

3. The PCB circuit board grinding device according to claim 2, characterized in that, The first rotating shaft (12) rotates through the sliding sleeve (10). A connecting plate (17) is fixedly connected to one side of the first rotating shaft (12). A circular plate (18) is fixedly connected to one side of the connecting plate (17). A third rotating shaft (21) is rotatably connected to the circular plate (18). A third motor (19) is mounted on one side of the circular plate (18). The output end of the third motor (19) and the third rotating shaft (21) are connected by a third belt pulley assembly (20). Multiple grinding rods (22) are fixedly connected to the third rotating shaft (21).

4. The PCB circuit board grinding device according to claim 1, characterized in that, The base (1) is rotatably connected to a fourth rotating shaft (25). The reciprocating screw assembly (3) and the fourth rotating shaft (25) are connected by a fourth belt pulley assembly (23). Multiple cleaning rods (24) are fixedly connected to the fourth rotating shaft (25).

5. The PCB circuit board grinding device according to claim 1, characterized in that, Each of the two side plates (2) is fixedly connected to a guide rail on one side.

6. The PCB circuit board grinding device according to claim 4, characterized in that, A brush is installed on the underside of the sweeping bar (24).

Images