A punching device for processing a circuit board

Abstract

The application relates to the field of circuit board production devices, in particular to a punching device for circuit board processing, which comprises two racks arranged symmetrically, main conveying shafts evenly arranged between the two racks, main conveying rollers fixed on the main conveying shafts, slave conveying shafts evenly arranged on the two racks, slave conveying rollers fixed on the slave conveying shafts, the main conveying rollers and the slave conveying rollers being driven to rotate by conveying motors, multiple jacking cylinders fixed on the racks, piston rods of the jacking cylinders being fixed to lifting plates, longitudinal screws and supporting rods arranged on the racks, the longitudinal screws being driven to rotate by longitudinal motors, and sliding plates threadedly connected with the longitudinal screws arranged on the longitudinal screws. The device sequentially moves the circuit boards to designated positions to perform punching work on the circuit boards, manual removal and placement of the circuit boards are not needed, and the production efficiency of the circuit boards is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing equipment, and more particularly to a drilling device for circuit board processing. Background Technology

[0002] As one of the basic components of electronic devices, circuit boards are where most of the electronic components or other electronic devices that enable the functions of electronic devices are located and rely on circuit boards for power supply and signal transmission.

[0003] As is well known, PCB circuit boards require drilling during manufacturing. For example, patent application CN202321068024.1 discloses a drilling device for multilayer circuit board production, including a worktable with a cavity inside. A first helical rod is rotatably mounted inside the cavity, and a first connecting block is helically sleeved on the outer wall of the first helical rod. A first motor is fixedly mounted on the side wall of the worktable, and the output shaft of the first motor passes through the worktable and is fixedly connected to the first helical rod. A pair of sliding grooves are provided on the upper surface of the worktable, and a support rod is provided inside each of the sliding grooves. The support rod is connected to the first connecting block. The circuit board is fixedly connected to a pair of support rods. Grooves are formed on the opposite sides of the support rods, and a second helical rod is rotatably mounted inside the grooves. A second motor is fixedly mounted on the top of each support rod, and the output shaft of the second motor passes through the support rod and is fixedly connected to the second helical rod. A second connecting block is helically sleeved on the outer wall of the second helical rod. A mounting rod is fixedly connected to one end of the second connecting block. A through groove is formed on the mounting rod, and a screw is movably connected inside the through groove. A nut is helically sleeved on the upper end of the screw, and a fixing block is fixedly connected to the lower end of the screw. A drilling motor is fixedly mounted on the bottom surface of the fixing block, and a drill bit is fixedly sleeved on the output shaft of the drilling motor. In use, the multi-layer circuit board is first fixed, then the drilling motor is started. The output shaft of the drilling motor drives the drill bit to rotate, drilling holes in the circuit board. However, after drilling, the circuit board must be manually removed and then repositioned before drilling can continue with the next circuit board, greatly reducing the production efficiency of the circuit board.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drilling device for circuit board processing.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses a drilling device for circuit board processing, comprising two symmetrically arranged frames, with a main conveyor shaft evenly distributed between the two frames. A main conveyor roller is fixed on the main conveyor shaft. Slave conveyor shafts are also evenly distributed on the two frames, each with a slave conveyor roller fixed on it. Both the main and slave conveyor rollers are driven to rotate by a conveyor motor. Multiple lifting cylinders are also fixed on the frames, with the piston rod ends of each lifting cylinder fixed to a lifting plate. A longitudinal lead screw and a support rod are also provided on the frames. The longitudinal lead screw is driven to rotate by a longitudinal motor, and a sliding plate threadedly connected to the longitudinal lead screw is provided on the longitudinal lead screw. The support rod passes through the sliding plate and is slidably connected to it. The device also features a horizontally arranged lead screw and slide bar. The lead screw is driven to rotate by a horizontal motor. A slider threadedly connected to the lead screw is mounted on the lead screw. The slide bar passes through the slider and is slidably connected to it. Multiple lifting cylinders are fixed on the slider. The piston rod ends of the lifting cylinders are fixed to the mounting plate. A drilling motor is fixed on the mounting plate, and a drill bit is fixed to the output end of the drilling motor. A protective cover is installed below the mounting plate, and multiple limiting rods are fixed on the cover. The limiting rods pass through the mounting plate and are slidably connected to it. Limit blocks are fixed to the top of each limiting rod. Multiple springs are fixed between the cover and the mounting plate. An air pipe connected to an air pump is also fixed on the cover.The circuit boards are placed sequentially on the main conveyor rollers between the frames. As the conveyor motor drives each main conveyor roller to rotate, the circuit boards move forward. When a circuit board reaches the position of a secondary conveyor roller, the secondary conveyor rollers on both sides of the circuit board provide support, allowing the circuit board to continue moving forward. Once the circuit board reaches the designated position, the conveyor motor stops, the lifting cylinder starts, the piston rod on the lifting cylinder extends, and the lifting plate rises. After the lifting plate contacts the circuit board, it lifts the circuit board, separating it from the secondary conveyor roller. The longitudinal motor drives the longitudinal lead screw to rotate, causing the slide plate to move longitudinally, and the drill bit moves longitudinally with the slide plate. The transverse motor drives the transverse lead screw to rotate, causing the slider to move laterally, and the drill bit moves laterally with the slider. This allows the drill bit to be moved to any position above the circuit board. The drilling motor drives the drill bit to rotate. When the drill bit reaches the desired drilling position on the circuit board, the lifting cylinder starts, the piston rod on the lifting cylinder extends, and the drill bit descends. The drill bit drills holes in the circuit board. After drilling is complete, the lifting cylinder is activated, the piston rod on the lifting cylinder shortens, and the drill bit rises. The drill bit is then moved to the designated position to drill holes in the circuit board again. This process is repeated. Once all holes in the circuit board are drilled, the lifting cylinder is activated, the lifting plate descends, and the circuit board descends with the lifting plate. The two ends of the circuit board are then placed back on the conveyor rollers. The conveyor motor drives the main conveyor roller and the secondary conveyor roller to rotate, moving the drilled circuit board to another station. The circuit board to be drilled is then moved back to the lifting plate, and the process is repeated. This device moves each circuit board to the designated position sequentially before drilling, eliminating the need for manual removal and placement of the circuit boards, greatly improving production efficiency. During drilling, a protective cover covers the area around the drilling position, and an air pump extracts air from the cover area. The air flow in the cover area reduces the drill bit temperature and removes drilling dust, preventing dust pollution.

[0008] Preferably, the output end of the conveyor motor is fixed to one of the main conveyor shafts. A main sprocket is fixed on one side of the main conveyor shaft on one of the frames, and a main sprocket is also fixed on the slave conveyor shaft on the corresponding frame. The main sprockets are connected by a main chain. A slave sprocket is fixed on the slave conveyor shaft on the other frame, and a slave sprocket is also fixed on the main conveyor shaft on both sides of the slave conveyor shaft on the corresponding frame. The slave sprockets are connected by a slave chain.

[0009] Preferably, the bottom of the protective cover is also provided with an air inlet that penetrates the protective cover.

[0010] Preferably, multiple fixing cylinders are fixed on the frame on both sides of the lifting plate, and fixing plates are also symmetrically arranged on both sides of the lifting plate. The piston rod ends of the fixing cylinders are fixed to the corresponding fixing plates. After the lifting plate rises, the circuit board rises with the lifting plate. After the circuit board reaches the designated position, the fixing cylinders are activated, the piston rods of the fixing cylinders extend, and the fixing plates on both sides of the circuit board approach and fix the circuit board. After the circuit board is fixed, drilling operations are performed on the circuit board.

[0011] Preferably, the frame is further fixed with multiple positioning cylinders, and a positioning plate is also provided on one side of the lifting plate. The piston rod ends of the positioning cylinders are all fixed to the positioning plates. When the circuit board moves, the positioning cylinders are activated, the piston rods on the positioning cylinders extend, the positioning plate rises, and the circuit board is blocked after contacting the positioning plate. After the circuit board is blocked, the lifting plate rises, lifting the circuit board.

[0012] Preferably, the support plate is also evenly provided with clearance holes that penetrate the support plate. When drilling holes in the circuit board, the drill bit passes through the circuit board, and the bottom of the drill bit extends into the clearance hole position to realize the drilling of the circuit board.

[0013] Compared with existing technologies, the present invention has the following advantages:

[0014] This device moves each circuit board to its designated position sequentially and then performs drilling operations on the circuit boards. There is no need for manual removal and placement of the circuit boards, which greatly improves the production efficiency of the circuit boards. During drilling, a protective cover is used to cover the area around the drilling position, and an air pump extracts gas from the area around the protective cover. The air flow in the area around the protective cover can reduce the temperature of the drill bit and remove the drilling dust to avoid dust pollution. Attached Figure Description

[0015] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure from another angle of the present invention;

[0018] Figure 3 This is a schematic diagram of the third angle structure of the present invention;

[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0020] In the diagram: 1. Frame; 2. Main conveyor shaft; 3. Main conveyor roller; 4. Main sprocket; 5. Main chain; 6. Driven conveyor shaft; 7. Driven sprocket; 8. Driven chain; 9. Driven conveyor roller; 10. Positioning cylinder; 11. Positioning plate; 12. Lifting cylinder; 13. Lifting plate; 14. Support rod; 15. Longitudinal lead screw; 16. Longitudinal motor; 17. Slide plate; 18. Slide rod; 19. Transverse lead screw; 20. Transverse motor; 21. Slider; 22. Lifting cylinder; 23. Mounting plate; 24. Drilling motor; 25. Drill bit; 26. Protective cover; 27. Limiting rod; 28. Limiting block; 29. ​​Spring; 30. Air inlet; 31. Air pipe; 32. Fixing cylinder; 33. Fixing plate; Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0022] Example 1:

[0023] like Figures 1 to 4As shown, this embodiment discloses a drilling device for circuit board processing, comprising two symmetrically arranged frames 1, with a main conveyor shaft 2 evenly arranged between the two frames 1. A main conveyor roller 3 is fixed on the main conveyor shaft 2. A secondary conveyor shaft 6 is evenly arranged on both frames 1, with a secondary conveyor roller 9 fixed on each secondary conveyor shaft 6. Both the main conveyor roller 3 and the secondary conveyor roller 9 are driven to rotate by a conveyor motor. Multiple lifting cylinders 12 are also fixed on the frames 1, with the piston rod ends of the lifting cylinders 12 fixed to a lifting plate 13. A longitudinal lead screw 15 and a support rod 14 are also provided on the frames 1. The longitudinal lead screw 15 is driven to rotate by a longitudinal motor 16. A sliding plate 17 is provided on the longitudinal lead screw 15 and threadedly connected to it. The support rod 14 passes through the sliding plate 17 and is slidably connected to it. A transverse lateral support is also provided on the sliding plate 17. The system includes a lead screw 19 and a slide bar 18. The lead screw 19 is driven to rotate by a horizontal motor 20. A slider 21 is threadedly connected to the lead screw 19. The slide bar 18 passes through the slider 21 and is slidably connected to the slider 21. Multiple lifting cylinders 22 are fixed on the slider 21. The piston rod ends of the lifting cylinders 22 are all fixed to the mounting plate 23. A drilling motor 24 is also fixed on the mounting plate 23. A drill bit 25 is fixed to the output end of the drilling motor 24. A protective cover 26 is also provided below the mounting plate 23. Multiple limiting rods 27 are fixed on the protective cover 26. The limiting rods 27 pass through the mounting plate 23 and are slidably connected to the mounting plate 23. Limiting blocks 28 are fixed to the top of each limiting rod 27. Multiple springs 29 are also fixed between the protective cover 26 and the mounting plate 23. An air pipe 31 connected to an air pump is also fixed on the protective cover 26.The circuit boards are placed sequentially on the main conveyor rollers 3 between the frames 1. As the conveyor motor drives each main conveyor roller 3 to rotate, the circuit boards move forward. When the circuit board reaches the position of the secondary conveyor roller 9, the secondary conveyor rollers 9 on both sides of the circuit board provide support, and the circuit board continues to move forward. After the circuit board reaches the designated position, the conveyor motor stops, the lifting cylinder 12 is activated, the piston rod on the lifting cylinder 12 extends, and the lifting plate 13 rises. After the lifting plate 13 contacts the circuit board, it lifts the circuit board, and the circuit board separates from the secondary conveyor roller 9. The longitudinal motor 16 drives the longitudinal lead screw 15 to rotate. When the longitudinal lead screw 15 rotates, the slide plate 17 moves longitudinally, and the drill bit 25 moves longitudinally with the slide plate 17. The transverse motor 20 drives the transverse lead screw 19 to rotate. When the transverse lead screw 19 rotates, the slider 21 moves laterally, and the drill bit 25 moves laterally with the slider 21. This allows the drill bit 25 to be moved to any position above the circuit board. The drilling motor 24 drives the drill bit 25 to rotate. When the drill bit 25 moves to the position to be drilled on the circuit board, the lifting cylinder 22 is activated, and the lifting cylinder 22... The piston rod extends, and the drill bit 25 descends, drilling holes in the circuit board. After drilling is complete, the lifting cylinder 22 activates, the piston rod on the lifting cylinder 22 shortens, and the drill bit 25 rises, moving to the designated position again to drill holes in the circuit board. This cycle repeats until all holes are drilled. Then, the lifting cylinder 12 activates, and the lifting plate 13 descends. The circuit board descends with the lifting plate 13, and both ends of the circuit board are placed back on the conveyor rollers 9. The conveyor motor then drives the main conveyor roller 3 and the conveyor roller 9 to rotate, completing the drilling process. The completed circuit board is moved to another workstation, and the circuit board to be drilled is moved to the support plate 13 again. The operation is repeated. This device moves each circuit board to the designated position in sequence and then performs the drilling operation on the circuit board. There is no need for manual removal and placement of the circuit board, which greatly improves the production efficiency of the circuit board. When drilling, the surrounding area of ​​the drilling position is covered by the protective cover 26, and the air is drawn from the protective cover 26 by the air pump. The air flow at the protective cover 26 can reduce the temperature of the drill bit 25 and extract the drilling dust to avoid dust pollution.

[0024] The output end of the conveyor motor is fixed to one of the main conveyor shafts 2. A main sprocket 4 is fixed on one side of the main conveyor shaft 2 on one of the frames 1. A main sprocket 4 is also fixed on the slave conveyor shaft 6 on the corresponding frame 1. The main sprocket 4 is connected by a main chain 5. A slave sprocket 7 is fixed on the slave conveyor shaft 6 on the other frame 1. A slave sprocket 7 is also fixed on the main conveyor shaft 2 on both sides of the slave conveyor shaft 6 on the corresponding frame 1. The slave sprocket 7 is connected to each other by a slave chain 8.

[0025] The bottom of the protective cover 26 is also provided with an air inlet 30 that penetrates the protective cover 26.

[0026] Multiple fixing cylinders 32 are fixed on the frame 1 on both sides of the lifting plate 13. Fixing plates 33 are also symmetrically arranged on both sides of the lifting plate 13. The piston rod ends of the fixing cylinders 32 are fixed to the corresponding fixing plates 33. After the lifting plate 13 rises, the circuit board rises with the lifting plate 13. After the circuit board reaches the designated position, the fixing cylinders 32 are activated, the piston rods on the fixing cylinders 32 extend, and the fixing plates 33 on both sides of the circuit board approach the circuit board and fix the circuit board. After the circuit board is fixed, the circuit board is drilled.

[0027] The support plate 13 is also evenly provided with clearance holes that penetrate through the support plate 13. When drilling the circuit board, the drill bit 25 passes through the circuit board, and the bottom of the drill bit 25 extends into the clearance hole position to realize the drilling of the circuit board.

[0028] Example 2:

[0029] This embodiment discloses a drilling device for circuit board processing. Based on the structure and principle of Embodiment 1, this embodiment further includes multiple positioning cylinders 10 fixed on the frame 1, and a positioning plate 11 is provided on one side of the lifting plate 13. The piston rod ends of the positioning cylinders 10 are all fixed to the positioning plate 11. When the circuit board moves, the positioning cylinders 10 are activated, the piston rods of the positioning cylinders 10 extend, the positioning plate 11 rises, and the circuit board is blocked after contacting the positioning plate 11. After the circuit board is blocked, the lifting plate 13 rises, lifting the circuit board.

[0030] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A drilling device for circuit board processing, characterized in that, The system comprises two symmetrically arranged frames, with a main conveyor shaft evenly distributed between the two frames. A main conveyor roller is fixed to the main conveyor shaft. Secondary conveyor shafts are also evenly distributed on both frames, each with a secondary conveyor roller fixed to it. Both the main and secondary conveyor rollers are driven to rotate by a conveyor motor. Multiple lifting cylinders are fixed to the frames, with the piston rod ends of each cylinder fixed to a support plate. A longitudinal lead screw and a support rod are also provided on the frames. The longitudinal lead screw is driven to rotate by a longitudinal motor, and a sliding plate threadedly connected to the longitudinal lead screw is provided. The support rod passes through the sliding plate and is slidably connected to it. A transverse thread is also provided on the sliding plate. The device comprises a lever and a slide bar. The transverse lead screw is driven to rotate by a transverse motor. A slider is threadedly connected to the transverse lead screw. The slide bar passes through the slider and is slidably connected to the slider. Multiple lifting cylinders are fixed on the slider. The piston rod ends of the lifting cylinders are all fixed to a mounting plate. A drilling motor is also fixed on the mounting plate. A drill bit is fixed to the output end of the drilling motor. A protective cover is provided below the mounting plate. Multiple limiting rods are fixed on the protective cover. The limiting rods pass through the mounting plate and are slidably connected to the mounting plate. A limiting block is fixed to the top of each limiting rod. Multiple springs are also fixed between the protective cover and the mounting plate. An air pipe connected to an air pump is also fixed on the protective cover.

2. The drilling device for circuit board processing according to claim 1, characterized in that, The output end of the conveyor motor is fixed to one of the main conveyor shafts. A main sprocket is fixed on one side of the main conveyor shaft on one of the frames, and a main sprocket is also fixed on the slave conveyor shaft on the corresponding frame. The main sprockets are connected by a main chain. A slave sprocket is fixed on the slave conveyor shaft on the other frame, and a slave sprocket is also fixed on the main conveyor shaft on both sides of the slave conveyor shaft on the corresponding frame. The slave sprockets are connected by a slave chain.

3. The drilling device for circuit board processing according to claim 1, characterized in that, The bottom of the protective cover is also provided with an air inlet that penetrates the protective cover.

4. The drilling device for circuit board processing according to claim 1, characterized in that, Multiple fixing cylinders are fixed on the frame on both sides of the lifting plate, and fixing plates are also symmetrically arranged on both sides of the lifting plate. The piston rod end of the fixing cylinder is fixed to the fixing plate at the corresponding position.

5. The drilling device for circuit board processing according to claim 1, characterized in that, The frame is also fixed with multiple positioning cylinders, and a positioning plate is provided on one side of the lifting plate. The piston rod ends of the positioning cylinders are all fixed to the positioning plate.

6. The drilling device for circuit board processing according to claim 1, characterized in that, The lifting plate is also evenly provided with clearance holes that penetrate the lifting plate.

Images