A circuit board drilling device

Abstract

This invention relates to the field of circuit board manufacturing equipment, and more particularly to a circuit board drilling device, comprising a table, on which a rotary motor is fixed, and a fixed base is fixed to the output end of the rotary motor. The fixed base has symmetrically arranged fixing grooves on both sides of its upper end. Vertical plates are also symmetrically fixed on both sides of the table. A positioning screw and a positioning rod are arranged between the two vertical plates. The positioning screw is driven to rotate by the positioning motor. A slide is also arranged between the two vertical plates. The positioning screw is threadedly connected to the slide, and the positioning rod is slidably connected to the slide. A limit screw and a limit rod are arranged on the slide. The limit screw is driven to rotate by the limit motor, and a sliding plate threadedly connected to the limit screw is arranged on the limit screw. The limit rod passes through the sliding plate and is slidably connected to the sliding plate. This device allows for drilling of the next circuit board without waiting for the previous one to be removed, greatly improving the production efficiency of circuit boards.

Description

Technical Field

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

[0002] A circuit board, also known as a printed circuit board (PCB), is a board with printed conductors. Its main function is to reduce the space occupied by conductors and organize them in a clear layout, making circuits more miniaturized and intuitive. This plays a crucial role in the mass production of fixed circuits and the optimization of electrical appliance layout. The production process of PCBs involves printing, drilling, copper plating, solder paste application, surface mounting, and thermoforming. Among these, drilling is a critical step in PCB manufacturing, serving two main purposes: first, to achieve interlayer electrical connections, i.e., connections between conductive patterns in different layers; and second, to fix or position components, ensuring that electronic components can be accurately mounted on the PCB and correctly connected to other circuit components.

[0003] Patent application number CN202421044302.4 discloses a circuit board drilling device, specifically comprising: a main body; a sliding groove symmetrically formed on the top of the main body, with a movable seat slidably connected inside the sliding groove; movable grooves symmetrically formed on the left and right sides of the top of the main body, with sliding holes formed in each movable groove; a limiting block fixedly connected to one side of the top of the movable seat, and a movable frame mounted on the movable seat; a through hole formed inside the movable frame, with a limiting block slidably connected inside the through hole of the movable frame; a limiting groove formed on one side of the through hole of the movable frame, with a limiting block slidably connected inside the limiting groove of the movable frame; and a movable frame... The top of the movable frame has a movable hole, and a threaded seat is slidably connected inside the movable hole; the threaded seat has a threaded hole inside, and a motor is installed inside the threaded hole of the threaded seat; a movable block is slidably connected inside the movable slot, and different types of drill bits are fixed by threaded columns. Then the motor is started to drive the drill bit to rotate, and the height and position of the motor can be adjusted by the threaded seat. Then the movable frame is pressed to drive the drill bit on the motor to drill holes in the circuit board; however, this type of drilling device requires waiting for the circuit board to be removed and a new circuit board to be fixed after drilling the circuit board before drilling can continue, resulting in low drilling efficiency.

[0004] This invention was developed to address 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 drilling device.

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

[0007] This invention discloses a circuit board drilling device, comprising a table, a rotary motor fixed on the table, a fixed base fixed to the output end of the rotary motor, fixed grooves symmetrically arranged on both sides of the upper end of the fixed base, upright plates symmetrically fixed on both sides of the table, a positioning screw and a positioning rod arranged between the two upright plates, the positioning screw being driven to rotate by the positioning motor, a slide table arranged between the two upright plates, the positioning screw being threadedly connected to the slide table, the positioning rod being slidably connected to the slide table, a limit screw and a limit rod arranged on the slide table, the limit screw being driven to rotate by a limit motor, a sliding plate threadedly connected to the limit screw being arranged on the limit screw, the limit rod passing through the sliding plate and slidably connected to the sliding plate, multiple lifting cylinders fixed on the sliding plate, a slider arranged below the sliding plate, the piston rod ends of the lifting cylinders being fixed to the slider, a drilling motor fixed on the slider, and a drill bit fixed to the output end of the drilling motor. The circuit board to be drilled is placed in a fixed slot of the mounting base. A rotary motor drives the mounting base to rotate, and the circuit board rotates with the mounting base to below the drill bit. A universal positioning motor drives the positioning screw to rotate. Since the positioning screw is threadedly connected to the slide, when the positioning screw rotates, the slide moves laterally, and the drill bit moves laterally with the slide. A limit motor drives the limit screw to rotate. When the limit screw rotates, the slide moves in the direction of the limit screw, and the drill bit moves longitudinally with the slide. This allows the drill bit to be moved to any position above the circuit board. When the drill bit reaches the position to be drilled on the circuit board, the lifting cylinder is activated. The piston rod on the lifting cylinder extends, the slide descends, and the drill bit descends with the slide. After the high-speed rotating drill bit contacts the circuit board... This device performs drilling operations on circuit boards. After the drill bit makes a hole, the piston rod on the lifting cylinder shortens, separating the drill bit from the circuit board. The drill bit is then moved back to the position directly above the next hole to be drilled on the circuit board, and the operation is repeated. This device can perform drilling operations on circuit boards, and while drilling, the next circuit board to be drilled is placed in another fixed slot on the fixed base. After one circuit board is drilled, the rotary motor drives the fixed base to rotate 180 degrees, moving the next circuit board to be drilled under the drill bit. Then, the drilled circuit board is removed, and a new circuit board to be drilled is placed. There is no need to wait for the circuit board to be removed before the next circuit board can be drilled, which greatly improves the production efficiency of circuit boards.

[0008] Preferably, the fixing seat in the fixing groove is also provided with a plurality of clearance holes.

[0009] Preferably, the fixing seat in the fixing groove is further provided with multiple through-connecting grooves, and a lifting cylinder is fixed at the position corresponding to each of the connecting grooves on the platform. A support plate is fixed to the end of the piston rod of each lifting cylinder. When the circuit board is removed, the lifting cylinder is activated, the piston rod of the lifting cylinder extends, the support plate rises, and the support plate passes through the connecting groove to lift the circuit board out of the fixing groove.

[0010] Preferably, a positioning block is further provided below the slider, and a positioning hole is provided on the positioning block corresponding to the position of the drill bit. Multiple sliding rods are also fixed on the positioning block, passing through the slider and slidably connected to it. Limit blocks are fixed to the top of each sliding rod, and a spring is fixed between the positioning block and the slider. When drilling a hole in the circuit board, the slider descends, and the positioning block descends with the slider. The positioning block presses down on the circuit board, allowing for drilling operations. This avoids vibration of the circuit board caused by contact between the drill bit and the circuit board, which could affect the drilling quality.

[0011] Compared with existing technologies, the present invention has the following advantages:

[0012] This device can perform drilling operations on circuit boards. While drilling a circuit board, the next circuit board to be drilled is placed in another fixed slot on the fixed base. After drilling a circuit board, the rotary motor drives the fixed base to rotate 180 degrees, moving the next circuit board to be drilled under the drill bit. Then, the drilled circuit board is removed and a new circuit board to be drilled is placed. The next circuit board can be drilled without waiting to remove the old one, which greatly improves the production efficiency of circuit boards. Attached Figure Description

[0013] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure from another angle of the present invention;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0017] In the diagram: 1. Tabletop; 2. Rotary motor; 3. Fixed base; 4. Fixed groove; 5. Clearance hole; 6. Connecting groove; 7. Lifting cylinder; 8. Support plate; 9. Vertical plate; 10. Positioning screw; 11. Positioning rod; 12. Positioning motor; 13. Slide table; 14. Limit screw; 15. Limiting rod; 16. Slide plate; 17. Limiting motor; 18. Lifting cylinder; 19. Slider; 20. Drilling motor; 21. Drill bit; 22. Positioning block; 23. Slide rod; 24. Positioning hole; 25. Limiting block; 26. Spring; Detailed Implementation

[0018] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0019] Example 1:

[0020] like Figures 1 to 3As shown, this embodiment discloses a circuit board drilling device, including a table 1, a rotary motor 2 fixed on the table 1, a fixed base 3 fixed at the output end of the rotary motor 2, and fixed grooves 4 symmetrically arranged on both sides of the upper end of the fixed base 3. Vertical plates 9 are also symmetrically fixed on both sides of the table 1. A positioning screw 10 and a positioning rod 11 are arranged between the two vertical plates 9. The positioning screw 10 is driven to rotate by a positioning motor 12. A slide table 13 is also arranged between the two vertical plates 9. The positioning screw 10 is threadedly connected to the slide table 13, and the positioning rod 11 is slidably connected to the slide table 13. Next, a limit screw 14 and a limit rod 15 are provided on the slide table 13. The limit screw 14 is driven to rotate by the limit motor 17. A slide plate 16 is provided on the limit screw 14 and is threadedly connected to the limit screw 14. The limit rod 15 passes through the slide plate 16 and is slidably connected to the slide plate 16. Multiple lifting cylinders 18 are also fixed on the slide plate 16. A slider 19 is provided below the slide plate 16. The piston rod ends of the lifting cylinders 18 are all fixed to the slider 19. A drilling motor 20 is also fixed on the slider 19. A drill bit 21 is fixed to the output end of the drilling motor 20. The circuit board to be drilled is placed in a fixed slot 4 of the fixed base 3. The rotary motor 2 drives the fixed base 3 to rotate, and the circuit board rotates with the fixed base 3 to below the drill bit 21. The universal positioning motor 12 drives the positioning screw 10 to rotate. Since the positioning screw 10 is threadedly connected to the slide table 13, when the positioning screw 10 rotates, the slide table 13 moves laterally, and the drill bit 21 moves laterally with the slide table 13. The limit motor 17 drives the limit screw 14 to rotate. When the limit screw 14 rotates, the slide plate 16 moves in the direction of the limit screw 14, and the drill bit 21 moves longitudinally with the slide plate 16. This allows the drill bit 21 to be moved to any position above the circuit board. When the drill bit 21 moves to the position to be drilled on the circuit board, the lifting cylinder 18 is activated, the piston rod on the lifting cylinder 18 extends, the slider 19 descends, and the drill bit 21 moves with the slider 19. The high-speed rotating drill bit 21 descends and makes contact with the circuit board to drill a hole. After drilling, the piston rod on the lifting cylinder 18 shortens, separating the drill bit 21 from the circuit board. The drill bit 21 is then moved to the position directly above the next hole to be drilled on the circuit board, and the cycle repeats. This device can drill circuit boards and simultaneously place the next circuit board to be drilled in another fixed slot 4 on the fixed base 3. After one circuit board is drilled, the rotary motor 2 drives the fixed base 3 to rotate 180 degrees, moving the next circuit board to be drilled under the drill bit 21. Then, the drilled circuit board is removed and a new circuit board to be drilled is placed. The next circuit board can be drilled without waiting to remove the old one, greatly improving the production efficiency of circuit boards.

[0021] The fixing seat 3 inside the fixing groove 4 is also provided with multiple clearance holes 5.

[0022] The fixed base 3 within the fixed slot 4 is also equipped with multiple through-connecting slots 6. Lifting cylinders 7 are fixed at positions corresponding to the connecting slots 6 on the platform 1, and support plates 8 are fixed to the ends of the piston rods of the lifting cylinders 7. When the circuit board is removed, the lifting cylinders 7 are activated, the piston rods of the lifting cylinders 7 extend, the support plates 8 rise, and the support plates 8 pass through the connecting slots 6, lifting the circuit board from the fixed slot 4.

[0023] Example 2:

[0024] This embodiment discloses a circuit board drilling device. Based on the structure and principle of Embodiment 1, this embodiment further includes a positioning block 22 below the slider 19. A positioning hole 24 is provided on the positioning block 22 at a position corresponding to the drill bit 21, penetrating the positioning block 22. Multiple sliding rods 23 are fixed on the positioning block 22, passing through and slidably connecting with the slider 19. Limit blocks 25 are fixed to the top of each sliding rod 23. A spring 26 is also fixed between the positioning block 22 and the slider 19. When drilling the circuit board, the slider 19 descends, and the positioning block 22 descends with the slider 19. The positioning block 22 presses down on the circuit board to perform the drilling operation, preventing vibration of the circuit board caused by contact between the drill bit 21 and the circuit board, which would affect the drilling quality.

[0025] 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 drilling device, characterized in that, The device includes a tabletop, on which a rotary motor is fixed. A mounting base is fixed to the output end of the rotary motor. The mounting base has symmetrical mounting slots on both sides of its upper end. Vertical plates are also symmetrically fixed to both sides of the tabletop. A positioning screw and a positioning rod are positioned between the two vertical plates. The positioning screw is driven to rotate by the positioning motor. A slide is also positioned between the two vertical plates. The positioning screw is threadedly connected to the slide, and the positioning rod is slidably connected to the slide. A limit screw and a limit rod are provided on the slide. The limit screw is driven to rotate by a limit motor. A sliding plate threadedly connected to the limit screw is provided on the limit screw. The limit rod passes through the sliding plate and is slidably connected to it. Multiple lifting cylinders are fixed on the sliding plate. A slider is located below the sliding plate. The piston rod ends of the lifting cylinders are fixed to the slider. A drilling motor is fixed to the slider, and a drill bit is fixed to the output end of the drilling motor.

2. The circuit board drilling device according to claim 1, characterized in that, The fixing seat in the fixing groove is also provided with multiple clearance holes.

3. The circuit board drilling device according to claim 1, characterized in that, The fixed seat in the fixed groove is also provided with multiple through-connecting grooves. A lifting cylinder is fixed at the position corresponding to the connecting groove on the platform, and a support plate is fixed at the end of the piston rod of the lifting cylinder.

4. The circuit board drilling device according to claim 1, characterized in that, A positioning block is also provided below the slider. A positioning hole is provided on the positioning block at the position corresponding to the drill bit. Multiple sliding rods are also fixed on the positioning block. The sliding rods pass through the slider and are slidably connected to the slider. A limit block is fixed at the top of each sliding rod. A spring is also fixed between the positioning block and the slider.

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