Circuit board cutting device

Abstract

The invention relates to the field of circuit board processing, in particular to a circuit board cutting device which comprises a rack, a lead screw and a supporting rod are arranged on the rack, the lead screw is driven by a feeding motor to rotate, a sliding plate in threaded connection with the lead screw is arranged on the lead screw, and a rotating motor is fixed to the sliding plate; a rotating motor is fixed to the rack, a feeding electromagnet is fixed to the output end of the rotating motor, a plurality of lifting air cylinders are further fixed to the rack, the tail ends of piston rods of the lifting air cylinders are all fixed to a connecting plate, material taking electromagnets are further evenly arranged below the connecting plate, and sliding rods are fixed to the upper ends of the material taking electromagnets. The sliding rods penetrate through the connecting plates and are in sliding connection with the connecting plates, limiting blocks are fixed to the tops of the connecting plates, springs are fixed between the material taking electromagnets and the connecting plates, and fixing blocks made of metal are attracted to the lower ends of the material taking electromagnets. According to the device, a large circuit board can be cut into a plurality of small circuit boards.

Description

Technical Field

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

[0002] Circuit boards are typically large in size after initial production, and usually need to be divided into multiple smaller circuit boards.

[0003] Patent application number CN202311154903.0 discloses a 5G high-frequency circuit board segmentation device, including a support mechanism, a positioning mechanism, a segmentation mechanism, a trimming mechanism, and a grinding mechanism. The support mechanism includes a base and an operating table. The base is set on the ground and fixedly connected to the operating table. The operating table is connected to the positioning mechanism and the segmentation mechanism respectively, and the operating table is used to support the positioning mechanism and the segmentation mechanism. The positioning mechanism includes a limiting component, which is used to limit and clamp the 5G high-frequency circuit board. The segmentation mechanism includes a cutting disc, which is used to segment the 5G high-frequency circuit board clamped by the limiting component. However, this type of segmentation device can only segment the circuit board once at a time, and can only segment the circuit board from one direction, which is inefficient.

[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 circuit board cutting device.

[0006] This invention can be achieved through the following technical solutions: This invention discloses a circuit board cutting device, including a frame, on which a lead screw and a support rod are mounted. The lead screw is driven to rotate by a feeding motor. A sliding plate threadedly connected to the lead screw is mounted on the lead screw. A rotary motor is fixed on the sliding plate, and a feeding electromagnet is fixed at the output end of the rotary motor. Multiple lifting cylinders are also fixed on the frame. The piston rod ends of the lifting cylinders are all fixed to a connecting plate. Picking electromagnets are evenly arranged below the connecting plate. A sliding rod is fixed to the upper end of each picking electromagnet, and the sliding rod passes through the connecting plate and is slidably connected to the connecting plate. A limit block is fixed to the top of each connecting plate. A spring is fixed between each picking electromagnet and the connecting plate. A metal fixing block is attracted to the lower end of each picking electromagnet. A cutting motor is also fixed on the frame, and a rotating shaft is fixed to the output of the cutting motor. Cutting discs are evenly fixed on the rotating shaft. The circuit board to be cut is placed on top of the feeding electromagnet. The feeding motor drives the lead screw to rotate. When the lead screw rotates, the slide plate moves in the direction of the lead screw, and the circuit board moves with the slide plate to below the connecting plate. The lifting cylinder is activated, and the piston rod on the lifting cylinder extends, causing the connecting plate to descend and the fixing blocks to descend. After all the fixing blocks are placed on top of the circuit board, the picking electromagnet is de-energized, and the magnetism generated by the picking electromagnet disappears. The feeding electromagnet is energized, and the feeding electromagnet generates magnetism, causing all the fixing blocks to be attracted to the top of the circuit board. The circuit board is fixed by pressing down on the fixing blocks. After the circuit board is fixed, the feeding motor continues to drive the lead screw to rotate, and the circuit board continues to move with the slide plate. When the circuit board passes the cutting disc, it contacts the high-speed rotating cutting disc and is cut by the cutting disc. After the circuit board moves from one side of the cutting disc to the other side, it is divided. After the circuit board is divided, the rotary motor drives the fixing plate to rotate. After the fixing plate rotates 90 degrees, the feeding motor drives the lead screw to rotate in the opposite direction, and the slide plate... The board continues to move towards the cutting disc, where it is cut again. After being slit, the board rotates 90 degrees and is slit again. The slit board then reaches below the connecting plate, triggering the lifting cylinder. The piston rod on the lifting cylinder extends, causing the picking electromagnet to descend and contact the fixing block again. After the feeding electromagnet is de-energized, the picking electromagnet is energized, and the fixing block is attracted to the picking electromagnet again. The lifting cylinder restarts, the connecting plate rises again, and the fixing frame separates from the slit board, allowing the board to be removed. This device can slit large circuit boards into multiple smaller pieces. The electromagnets generate magnetic attraction to the fixing block, securing the board and preventing obstruction of the cutting disc. Furthermore, by using multiple cutting discs to slit the board laterally, rotating it 90 degrees, and then slit it again, the device can slit a single circuit board into multiple pieces, significantly improving slit efficiency.

[0007] Preferably, each of the feeding electromagnets has a rubber support block fixed to its upper end. The rubber support block contacts the lower end of the circuit board, resulting in high friction between the circuit board and the support block, which helps prevent the circuit board from shifting during cutting.

[0008] Preferably, each of the material-picking electromagnets has a positioning block fixed at its lower end, and each positioning block has a conical groove at its bottom.

[0009] Preferably, the frame is also fixed with multiple unloading cylinders, and the piston rod ends of the unloading cylinders are all fixed to the push plate. After the circuit board is cut, the fixing block separates from the circuit board, the unloading cylinder is activated, the piston rod of the unloading cylinder extends, the push plate moves, and the push plate pushes the circuit board above the feeding electromagnet away. After the circuit board is pushed away and falls off, it is collected.

[0010] Compared with existing technologies, the present invention has the following advantages: This device can cut large circuit boards into multiple smaller circuit boards. The circuit boards are fixed in place by magnetic attraction blocks generated by electromagnets, which can avoid blocking the cutting discs and achieve the cutting of the circuit boards. After the circuit boards are cut horizontally by multiple cutting discs, the circuit boards are rotated 90 degrees and then cut again, so as to cut the circuit board into multiple circuit boards in one go, which greatly improves the cutting efficiency of circuit boards. Attached Figure Description

[0011] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another angle; Figure 3 for Figure 2 Sectional view at point AA; Figure 4 for Figure 3 Enlarged view at point B in the middle; In the diagram: 1. Frame; 2. Lead screw; 3. Feeding motor; 4. Support rod; 5. Slide plate; 6. Rotary motor; 7. Fixing plate; 8. Feeding electromagnet; 9. Support block; 10. Lifting cylinder; 11. Connecting plate; 12. Picking electromagnet; 13. Slide rod; 14. Limit block; 15. Spring; 16. Positioning block; 17. Fixing block; 18. Cutting motor; 19. Rotating shaft; 20. Cutting disc; 21. Unloading cylinder; 22. Push plate; Detailed Implementation The embodiments of the present invention will now be described in detail with reference to the accompanying drawings: Example

[0012] like Figures 1 to 4As shown, this embodiment discloses a circuit board cutting device, including a frame 1. A lead screw 2 and a support rod 4 are mounted on the frame 1. The lead screw 2 is driven to rotate by a feeding motor 3. A sliding plate 5, threadedly connected to the lead screw 2, is mounted on the lead screw 2. A rotary motor 6 is fixed on the sliding plate 5, and a feeding electromagnet 8 is fixed to the output end of the rotary motor 6. Multiple lifting cylinders 10 are also fixed on the frame 1. The piston rod ends of each lifting cylinder 10 are fixed to a connecting plate 11. Picking electrodes are evenly arranged below the connecting plate 11. Magnet 12 and the upper end of the picking electromagnet 12 are both fixed with sliding rods 13. The sliding rods 13 pass through the connecting plate 11 and are slidably connected to the connecting plate 11. Limiting blocks 14 are fixed on the top of the connecting plate 11. Springs 15 are fixed between the picking electromagnet 12 and the connecting plate 11. Metal fixing blocks 17 are attracted to the lower end of the picking electromagnet 12. A cutting motor 18 is also fixed on the frame 1. A rotating shaft 19 is also fixed at the output of the cutting motor 18. Cutting discs 20 are also evenly fixed on the rotating shaft 19.The circuit board to be cut is placed on top of the feeding electromagnet 8. The feeding motor 3 drives the lead screw 2 to rotate. When the lead screw 2 rotates, the slide plate 5 moves in the direction of the lead screw 2. The circuit board moves with the slide plate 5 to below the connecting plate 11. The lifting cylinder 10 is activated, and the piston rod on the lifting cylinder 10 extends, causing the connecting plate 11 to descend. The fixing blocks 17 descend, and after all the fixing blocks 17 are placed on top of the circuit board, the picking electromagnet 12 is de-energized, and the magnetism generated by the picking electromagnet 12 disappears. The feeding electromagnet 8 is energized, and the feeding electromagnet 8 generates magnetism, causing all the fixing blocks 17 to descend. The circuit board is adsorbed onto its upper surface and fixed by the pressing down of the fixing block 17. After the circuit board is fixed, the feeding motor 3 continues to drive the lead screw 2 to rotate, and the circuit board continues to move with the slide plate 5. When the circuit board passes the position of the cutting disc 20, it comes into contact with the high-speed rotating cutting disc 20 and is cut by the cutting disc 20. After the circuit board moves from one side of the cutting disc 20 to the other side, it is divided. After the circuit board is divided, the rotary motor 6 drives the fixing plate 7 to rotate. After the fixing plate 7 rotates 90 degrees, the feeding motor 3 drives the lead screw 2 to reverse. As the circuit board rotates, the slide plate 5 continues to move towards the cutting disc 20, cutting the circuit board again. After being cut, the circuit board rotates 90 degrees and is cut again. The cut circuit board then reaches below the connecting plate 11 again. The lifting cylinder 10 is activated, the piston rod on the lifting cylinder 10 extends, and the picking electromagnet 12 descends. The picking electromagnet 12 contacts the fixing block 17 again. After the feeding electromagnet 8 is de-energized, the picking electromagnet 12 is energized, and the fixing block 17 is attracted to the picking electromagnet 12 again. The lifting cylinder 10 is activated again, and the connecting plate 11 is connected. Board 11 rises again, the fixing frame separates from the cut circuit board, and the cut circuit board is removed. This device can cut a large circuit board into multiple smaller circuit boards. The circuit board is fixed by the magnetic attraction of the fixing block 17 generated by the electromagnet, which can avoid blocking the cutting disc 20 and realize the cutting of the circuit board. After the circuit board is horizontally cut by multiple cutting discs 20, the circuit board is rotated 90 degrees and then cut again, realizing the cutting of the circuit board into multiple circuit boards at one time, which greatly improves the cutting efficiency of the circuit board.

[0013] Each of the feeding electromagnets 8 has a rubber support block 9 fixed to its upper end. The rubber support block 9 contacts the lower end of the circuit board, and the friction between the circuit board and the support block 9 is large, which can prevent the circuit board from moving during cutting.

[0014] Each of the material handling electromagnets 12 has a positioning block 16 fixed at its lower end, and the bottom of each positioning block 16 is provided with a conical groove. Example

[0015] This embodiment discloses a circuit board cutting device. Based on the structure and principle of embodiment 1, this embodiment also has multiple unloading cylinders 21 fixed on the frame 1. The piston rod ends of the unloading cylinders 21 are all fixed to the push plate 22. After the circuit board is cut, the fixing block 17 separates from the circuit board, the unloading cylinders 21 are activated, the unloading piston rod extends, the push plate 22 moves, and the push plate 22 pushes the circuit board above the feeding electromagnet 8 away. After the circuit board is pushed away and falls, it is collected.

[0016] 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 circuit board cutting device, comprising a frame, characterized in that: The frame is equipped with a lead screw and a support rod. The lead screw is driven to rotate by a feeding motor. A sliding plate with a threaded connection to the lead screw is provided on the lead screw. A rotary motor is fixed on the sliding plate. A feeding electromagnet is fixed at the output end of the rotary motor. Multiple lifting cylinders are also fixed on the frame. The piston rod ends of the lifting cylinders are all fixed to a connecting plate. Picking electromagnets are evenly arranged below the connecting plate. A sliding rod is fixed to the upper end of each picking electromagnet. The sliding rod passes through the connecting plate and slides in a slidable connection with the connecting plate. A limit block is fixed to the top of the connecting plate. A spring is fixed between each picking electromagnet and the connecting plate. A metal fixing block is attracted to the lower end of each picking electromagnet. A cutting motor is also fixed on the frame. A rotating shaft is fixed to the output of the cutting motor. Cutting discs are evenly fixed on the rotating shaft. A rubber support block is fixed to the upper end of each feeding electromagnet.

2. The circuit board cutting device according to claim 1, characterized in that: Each of the material-picking electromagnets has a positioning block fixed at its lower end, and each positioning block has a conical groove at its bottom.

3. The circuit board cutting device according to claim 1, characterized in that: The frame is also fixed with multiple unloading cylinders, and the piston rod ends of the unloading cylinders are all fixed to the push plate.

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