Automotive PCB cutting device and method with positioning function

Abstract

The present invention discloses an automotive PCB cutting device and method with a positioning function, which belongs to the technical field of PCB substrate cutting. The automotive PCB cutting device with a positioning function includes a support table and a cutting table fixedly mounted on the surface of the support table, a printed circuit board to be cut is placed on the surface of the cutting table, a laser cutter for cutting the printed circuit board is provided above the printed circuit board, and an L-shaped frame is fixedly mounted on the side surface of the cutting table. Compared with some traditional laser cutting equipment, the automotive PCB cutting device with a positioning function can realize the downward screwing movement of the threaded rod to clamp and position the printed circuit board while completing the height adjustment of the laser cutter, without the need for manual intervention to adjust the cutting distance. The operation steps are simple, time-saving and labor-saving, which improves the cutting speed of the printed circuit board and thus improves the cutting efficiency of the printed circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB substrate cutting, and more particularly to an automobile PCB cutting device and method with a positioning function. Background Art

[0002] As a core component of electronic equipment, PCB substrates have a wide range of application scenarios, covering multiple industries from traditional electronic products to emerging technology fields.

[0003] The Chinese patent application number CN202010933495.9 is a PCB substrate cutting machine, wherein an operating table is connected in the middle of the support frame, and a protective cover is connected to the lower end face of the operating table. The above invention includes a fixing device consisting of a base, an upper rotating plate, a lower rotating plate, a placement plate, a limit device, a slot and a rotating roller. The rotating rotating roller can well drive the surface PCB board to rotate, thereby driving the PCB board to enter the cutting groove. The rotating cutting tool can well cut the PCB board, so that the PCB board can reach the required shape and ensure the processing accuracy of the PCB board. The above invention includes a limiting device consisting of a blocking rod, a rotating groove, a rotating disk and an outer frame. The rotating disk can well drive the blocking rod to rotate, and the blocking rod rotates inside the rotating groove. The rotating blocking rod can well block the top of the PCB board, thereby limiting the position of the PCB board and ensuring that the PCB board can smoothly enter the cutting groove, so that the cutting tool can smoothly cut the PCB board.

[0004] Traditionally, some PCB boards are often cut using laser cutters. During the PCB cutting process, the board needs to be fixed in advance with a mechanical clamp, and then the vertical distance between the laser cutter and the PCB board is manually adjusted to ensure that the cutting distance between the laser cutter and the PCB board is within the range to prevent the generation of carbon black at the cutting track of the PCB board. Due to the different thicknesses of the PCB boards, the cutting distance between the laser cutter and the PCB board is also different. The process of adjusting the cutting distance between the laser cutter and the PCB board is cumbersome, time-consuming and labor-intensive. It is impossible to directly adjust the laser cutter during the clamping and positioning of the PCB board, which not only affects the cutting speed of the PCB board, but also affects the cutting efficiency of the PCB board. Summary of the Invention

[0005] The purpose of the present invention is to provide an automotive PCB cutting device with a positioning function to solve the problems raised in the above background technology:

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The automotive PCB cutting device with a positioning function comprises a support table and a cutting table fixedly mounted on the surface thereof, a printed circuit board to be cut is placed on the surface of the cutting table, a laser cutter for cutting the printed circuit board is arranged above the printed circuit board, an L-shaped frame is fixedly mounted on the side surface of the cutting table, a threaded rod that can be screwed downward is correspondingly arranged on the end surface of the L-shaped frame, a support seat is fixedly mounted on the surface of the L-shaped frame, and a rotating shaft is correspondingly connected to the end surface of the support seat for rotation, a cross rod for driving the threaded rod to move is fixedly mounted on the bottom surface of the two rotating shafts, a gear is fixedly mounted on the top surface of the rotating shaft, and a sliding plate is arranged on the top surface of the support seat. A toothed plate meshing with the gear is dynamically connected, and two inclined surfaces are correspondingly provided on the surface of the toothed plate. A mounting bracket is fixedly installed on the side surface of the support seat. The surfaces of the two mounting brackets are slidably connected with guide rods, and one end of the two guide rods is respectively in contact with the two inclined surfaces. A trapezoidal block is fixedly installed on one end of the guide rod. A lifting bracket that can move vertically up and down is provided on one side of the two trapezoidal blocks. The top inner side surface of the lifting bracket is rotatably connected to a spline rod, and the surface of the spline rod is provided with a spline wheel that can be both rotatable and slidable. When the threaded rod is screwed downward to clamp and position the printed circuit board, the lifting bracket moves upward to adjust the height of the laser cutter.

[0008] Preferably, the top surfaces of the two threaded rods are provided with a cross groove matching the cross rod, the cross rod and the cross groove are plugged into each other, and a first spring is elastically connected between the cross rod and the cross groove, one end of the first spring is fixedly connected to the bottom surface of the cross rod, and the other end of the first spring is fixedly connected to the inner bottom surface of the cross groove, and rubber pads are fixedly installed on the bottom surfaces of the two threaded rods and the surface of the cutting table. After the printed circuit board is clamped and positioned, the two pairs of rubber pads contact the surface and bottom surface of the printed circuit board, and the bottom surface of the L-shaped frame is fixedly installed with a threaded ring threadedly connected to the threaded rod.

[0009] Preferably, a support frame is fixedly installed on the side surface of the L-shaped frame, a threaded tube is threadedly connected to the surface of the support frame, a fixing ring is fixedly installed on one end surface of the tooth plate, a rotating block is fixedly installed on one end surface of the threaded tube, the rotating block is rotatably connected to the fixing ring, and a knob is fixedly installed on the other end surface of the threaded tube.

[0010] Preferably, a fixing bracket is fixedly mounted on the surface of the support seat, and a matching moving block is slidably connected to the inside of the fixing bracket, the top surface of the moving block is fixedly connected to the bottom surface of the tooth plate, and the tooth plate is slidably connected to the fixing bracket through the moving block, and a second spring is elastically connected between the moving block and the fixing bracket, one end of the second spring is fixedly connected to the moving block, and the other end of the second spring is fixedly connected to the inner wall of the fixing bracket.

[0011] Preferably, a slide is fixedly mounted on the surface of both mounting brackets, a matching slider is slidably connected to the inside of the slide, the slider is fixedly connected to the bottom surface of the trapezoidal block, a third spring is elastically connected between the slider and the slide, one end of the third spring is fixedly connected to the slider, and the other end of the third spring is fixedly connected to the inner wall of the slide.

[0012] Preferably, a vertical frame is fixedly mounted on the surface of the support platform, two supporting connecting frames are correspondingly fixedly mounted on the surface of the vertical frame, the lifting frame is slidably connected to the supporting connecting frame, the bottom inner side surface of the lifting frame is rotatably connected to a roller, the roller contacts the surface of the trapezoidal block, a fixing plate is fixedly mounted on the inner side surface of the lifting frame, a fourth spring is elastically connected between the fixing plate and the supporting connecting frame, one end of the fourth spring is fixedly connected to the surface of the fixing plate, and the other end of the fourth spring is fixedly connected to the supporting connecting frame.

[0013] Preferably, a movable movable seat is provided above the two spline wheels, and a movable groove in contact with the spline wheel is provided on the bottom surface of the movable seat, and a connecting frame is fixedly installed between the laser cutter and the two movable seats, and a mounting plate is provided on one side of the vertical frame, and a through vertical groove is provided on the surface of the mounting plate, and a sliding seat matching it is slidably connected inside the vertical groove, and a miniature telescope is fixedly installed on the surface of the sliding seat, and a common fixing plate is fixedly installed between the two connecting frames, and the telescopic end of the miniature telescope is fixedly connected to the surface of the common fixing plate.

[0014] Preferably, a base is fixedly mounted on the bottom surface of the support platform, a shell is fixedly mounted on the surface of the base, a controller is fixedly mounted on the surface of the shell, and the controller is electrically connected to the micro-retractor via a wire.

[0015] Preferably, a slot is provided on the inner side surface of the vertical frame, a screw rod is rotatably connected to the inside of the slot, a movable block is threadedly connected to the surface of the screw rod, the movable block matches the slot, the surface of the movable block is fixedly connected to the mounting plate, a motor is fixedly mounted on the side surface of the vertical frame, the output end of the motor is fixedly connected to the screw rod, and the motor is electrically connected to the controller through a wire.

[0016] The automotive PCB cutting method with positioning function includes the following steps:

[0017] S1: First, place the printed circuit board on the cutting table surface with your left hand so that the two corners of the printed circuit board are aligned with the rubber pad. Then, turn the knob with your right hand. The threaded tube follows the knob and screws inward toward the outside of the support frame. At this time, the rotating block rotates in the fixed ring and pulls the fixed ring to move the gear plate. During the movement of the gear plate, the moving block moves in the fixed frame to squeeze the second spring. The movement of the gear plate rotates the two gears. The rotation of the gears rotates the rotating shaft and the cross rod. The rotation of the cross rod rotates the threaded rod. Since the threaded rod is threadedly connected to the threaded ring, the threaded rod screws in downward and stretches the first spring. The screwing movement of the threaded rod clamps the printed circuit board with the rubber pad.

[0018] S2: As the toothed plate moves, it moves the two ramps to squeeze the guide rod. The guide rod moves the trapezoidal block to squeeze the roller. During the movement of the trapezoidal block, the slider slides inside the slide, stretching the third spring. The roller is squeezed by the trapezoidal block and moves upward, bringing the lifting frame upward. The upward movement of the lifting frame brings the spline rod and spline wheel upward, compressing the fourth spring.

[0019] S3: The spline wheel moves upward to lift the movable seat and move the connecting frame and laser cutter upward. After the threaded rod is screwed downward to clamp and position the printed circuit board, the laser cutter moves upward at the same time and starts cutting the printed circuit board.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) When the automotive PCB cutting device with a positioning function is in use, the threaded rod is screwed downward to move with the rubber pad to clamp and position the printed circuit board. At the same time, the tooth plate moves with the two inclined surfaces to squeeze the guide rod. The guide rod moves with the trapezoidal block to squeeze the roller. After being squeezed by the trapezoidal block, the roller moves upward, bringing the lifting frame upward. The lifting frame moves upward, bringing the spline rod and the spline wheel upward. The spline wheel moves upward to lift the movable seat and move the connecting frame and the laser cutter upward. Compared with some traditional laser cutting equipment, this laser cutting device realizes the downward screwing movement of the threaded rod to clamp and position the printed circuit board, and completes the height adjustment of the laser cutter. There is no need for manual intervention to adjust the cutting distance. This operation is simple, time-saving and labor-saving, which improves the cutting speed of the printed circuit board and thus improves the cutting efficiency of the printed circuit board.

[0022] 2) When the automotive PCB cutting device with a positioning function is in use, when the printed circuit board is thin, the threaded rod rotates downward for a longer distance, and the laser cutter moves upward for a longer distance. When the printed circuit board is thick, the threaded rod rotates downward for a shorter distance, and the laser cutter moves upward for a shorter distance. The cutting distance between the thinner printed circuit board and the laser cutter is longer than that between the thicker printed circuit board and the laser cutter. When the laser cutter cuts the thinner printed circuit board, the appearance of carbon black on the cut surface of the printed circuit board is prevented, thereby ensuring the cutting quality of the laser cutter on the printed circuit board.

[0023] 3) When the automotive PCB cutting device with a positioning function is in use, the lifting frame moves upward, carrying the spline rod and the spline wheel upward, causing the movable base to move upward, carrying the connecting frame and the laser cutter upward. When cutting the position on the surface of the printed circuit board to be cut, the movable block moves with the mounting plate and the micro-expansion device during the slotting movement, and the micro-expansion device moves with the movable base, the connecting frame and the laser cutter. During the movement of the movable base, the spline wheel slides on the surface of the spline rod, the micro-expansion device extends and moves the co-fixing plate, and the co-fixing plate moves with the connecting frame and the laser cutter, and the connecting frame moves with the movable base, causing the spline wheel to roll inside the movable groove. During the process of adjusting the height of the laser cutter and moving the laser cutter to the position to be cut, the spline wheel can both rotate and slide on the surface of the spline rod, thereby increasing the flexibility of the cutting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the support platform and base position structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the position structure of the support table and cutting table of the present invention;

[0027] Figure 4 This is a schematic diagram of the position structure of the gear and the tooth plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the tooth plate and slope surface position structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross rod and cross slot separation structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the separation structure of the fixed frame and the moving block of the present invention;

[0031] Figure 8 This is a schematic diagram of the position structure of the connecting frame and the laser cutter of the present invention;

[0032] Figure 9 This is a schematic diagram of the position structure of the spline rod and the spline wheel of the present invention;

[0033] Figure 10 This is a schematic diagram of the separation structure of the spline wheel and the movable groove of the present invention;

[0034] Figure 11 It is a schematic diagram of the position structure of the micro-expander and the co-fixed plate of the present invention.

[0035] Explanation of the numbers in the figure: 1. Support table; 2. Cutting table; 3. Printed circuit board; 4. L-shaped frame; 5. Threaded rod; 6. Support seat; 7. Rotating shaft; 8. Cross rod; 9. Gear; 10. Tooth plate; 11. Slope surface; 12. Mounting frame; 13. Guide rod; 14. Trapezoidal block; 15. Lifting frame; 16. Spline rod; 17. Spline wheel; 18. Laser cutter; 19. Cross groove; 20. First spring; 21. Rubber pad; 22. Threaded ring; 23. Support frame; 24. Threaded pipe; 25. Fixing ring; 26. Rotating block; 2 7. Knob; 28. Fixed frame; 29. ​​Moving block; 30. Second spring; 31. Slide; 32. Slider; 33. Third spring; 34. Supporting frame; 35. Roller; 36. Fixed plate; 37. Fourth spring; 38. Moving seat; 39. Moving slot; 40. Connecting frame; 41. Mounting plate; 42. Vertical slot; 43. Slide; 44. Micro telescope; 45. Common fixing plate; 46. Base; 47. Housing; 48. Controller; 49. Vertical frame; 50. Slot; 51. Screw; 52. Moving block; 53. Motor. DETAILED DESCRIPTION

[0036] Example 1: Please refer to Figure 1 - Figure 11, an automobile PCB cutting device with a positioning function includes a support table 1 and a cutting table 2 fixedly mounted on the surface thereof, a printed circuit board 3 to be cut is placed on the surface of the cutting table 2, the printed circuit board 3 is a conventional PCB substrate in the prior art, a laser cutter 18 for cutting the printed circuit board 3 is arranged above the printed circuit board 3, the laser cutter 18 is a conventional laser cutting device in the prior art, an L-shaped frame 4 is fixedly mounted on the side surface of the cutting table 2, the end surface of the L-shaped frame 4 is correspondingly provided with a threaded rod 5 that can be screwed downward, and the surface of the L-shaped frame 4 is fixedly mounted with The support seat 6 has a rotating shaft 7 connected to the end surface of the support seat 6. The bottom surfaces of the two rotating shafts 7 are respectively fixed with cross rods 8 for driving the threaded rod 5 to move. The top surface of the rotating shaft 7 is fixed with a gear 9. The upper part of the support seat 6 is slidably connected with a toothed plate 10 meshing with the gear 9. The surface of the toothed plate 10 has two inclined surfaces 11, and the inclined surface 11 is used to squeeze the guide rod 13. The side surface of the support seat 6 is fixedly installed with a mounting bracket 12. The surfaces of the two mounting brackets 12 are both slidably connected with a guide rod 13. The guide rod 13 is provided for the ladder The movement guide of the trapezoidal block 14 is provided. One end of the two guide rods 13 is in contact with the two slope surfaces 11 respectively. One end of the guide rod 13 is fixedly installed with the trapezoidal block 14. A lifting frame 15 that can move vertically up and down is provided on one side of the two trapezoidal blocks 14. The top inner side surface of the lifting frame 15 is rotatably connected to the spline rod 16. The surface of the spline rod 16 is provided with a spline wheel 17 that can rotate and slide. When the threaded rod 5 is screwed downward to clamp and position the printed circuit board 3, the lifting frame 15 moves upward to adjust the height of the laser cutter 18. When the printed circuit board 3 is thin, the threaded rod 5 The downward screwing movement distance is large, and at this time the upward movement distance of the laser cutter 18 is large. When the printed circuit board 3 is thicker, the downward screwing movement distance of the threaded rod 5 is small, and the upward movement distance of the laser cutter 18 is small. The cutting distance between the thinner printed circuit board 3 and the laser cutter 18 is large compared to the cutting distance between the thicker printed circuit board 3 and the laser cutter 18. When the laser cutter 18 cuts the thinner printed circuit board 3, the appearance of carbon black at the cut surface of the printed circuit board 3 is prevented, thereby ensuring the cutting quality of the printed circuit board 3 by the laser cutter 18;As the threaded rod 5 rotates downward, it clamps and positions the printed circuit board 3 with the rubber pad 21. The toothed plate 10 moves, causing the two ramps 11 to move and squeeze the guide rod 13. The guide rod 13 moves, causing the trapezoidal block 14 to move and squeeze the roller 35. After being squeezed by the trapezoidal block 14, the roller 35 moves upward, causing the lifting frame 15 to move upward. The lifting frame 15 moves upward, causing the splined rod 16 and splined wheel 17 to move upward. The splined wheel 17 moves upward, lifting the movable seat 38 and causing the connecting frame 40 and laser cutter 18 to move upward. Compared to some traditional laser cutting equipment, this laser cutting device achieves the goal of simultaneously clamping and positioning the printed circuit board 3 with the threaded rod 5 rotating downward, and completing the height adjustment of the laser cutter 18. No manual intervention is required to adjust the cutting distance. This operation is simple, time-saving, and labor-saving, which increases the cutting speed of the printed circuit board 3 and thereby improves the cutting efficiency of the printed circuit board 3.

[0037] The top surfaces of the two threaded rods 5 are each provided with a cross groove 19 that matches the cross rod 8. The cross rod 8 and the cross groove 19 are plugged into each other. A first spring 20 is elastically connected between the cross rod 8 and the cross groove 19. One end of the first spring 20 is fixedly connected to the bottom surface of the cross rod 8, and the other end of the first spring 20 is fixedly connected to the inner bottom surface of the cross groove 19. Rubber pads 21 are fixedly installed on the bottom surfaces of the two threaded rods 5 and the surface of the cutting table 2. After the threaded rods 5 clamp the printed circuit board 3, the rubber pads 21 can protect the surface of the printed circuit board 3. After the printed circuit board 3 is clamped and positioned, the two pairs of rubber pads 21 contact the surface and bottom surface of the printed circuit board 3. The bottom surface of the L-shaped frame 4 is correspondingly fixedly installed with a threaded ring 22 threadedly connected to the threaded rod 5, and the cross rod 8 and the cross groove 19 will not be detached.

[0038] A support frame 23 is fixedly installed on the side surface of the L-shaped frame 4, and a threaded tube 24 is threadedly connected to the surface of the support frame 23. A fixing ring 25 is fixedly installed on one end surface of the toothed plate 10, and a rotating block 26 is fixedly installed on one end surface of the threaded tube 24. The rotating block 26 is rotatably connected to the fixing ring 25, and a knob 27 is fixedly installed on the other end surface of the threaded tube 24. The threaded tube 24 follows the knob 27 to screw inwardly to the outside of the support frame 23. At this time, the rotating block 26 rotates in the fixing ring 25, and pulls the fixing ring 25 to move and the toothed plate 10 to move.

[0039] A fixing frame 28 is fixedly installed on the surface of the support seat 6, and a matching moving block 29 is slidably connected to the inside of the fixing frame 28. The top surface of the moving block 29 is fixedly connected to the bottom surface of the tooth plate 10, and the tooth plate 10 is slidably connected to the fixing frame 28 through the moving block 29. A second spring 30 is elastically connected between the moving block 29 and the fixing frame 28, and one end of the second spring 30 is fixedly connected to the moving block 29, and the other end of the second spring 30 is fixedly connected to the inner wall of the fixing frame 28. The arrangement of the moving block 29 and the fixing frame 28 ensures the stability of the tooth plate 10 during movement.

[0040] A slide 31 is fixedly mounted on the surface of both mounting frames 12, and a matching slider 32 is slidably connected to the interior of the slide 31. The slider 32 is fixedly connected to the bottom surface of the trapezoidal block 14, and a third spring 33 is elastically connected between the slider 32 and the slide 31. One end of the third spring 33 is fixedly connected to the slider 32, and the other end of the third spring 33 is fixedly connected to the inner wall of the slide 31. The arrangement of the slider 32 and the slide 31 ensures the stability of the trapezoidal block 14 during movement.

[0041] A vertical frame 49 is fixedly installed on the surface of the support platform 1, and two supporting links 34 are fixedly installed on the surface of the vertical frame 49. The lifting frame 15 is slidably connected to the supporting links 34, and the bottom inner side surface of the lifting frame 15 is rotatably connected to the roller 35. The roller 35 contacts the surface of the trapezoidal block 14. A fixing plate 36 is fixedly installed on the inner side surface of the lifting frame 15. A fourth spring 37 is elastically connected between the fixing plate 36 and the supporting links 34. One end of the fourth spring 37 is fixedly connected to the surface of the fixing plate 36, and the other end of the fourth spring 37 is fixedly connected to the supporting links 34. When the trapezoidal block 14 moves and squeezes the roller 35, the roller 35 will roll along the inclined surface of the trapezoidal block 14, reducing friction damage to the trapezoidal block 14.

[0042] The steps of using the present invention are as follows: When using the automotive PCB cutting device with a positioning function, first place the printed circuit board 3 on the surface of the cutting table 2 with your left hand so that the two corners of the printed circuit board 3 are aligned with the rubber pad 21. Then, turn the knob 27 with your right hand. The threaded tube 24 follows the knob 27 and screws inwardly toward the outside of the support frame 23. At this time, the rotating block 26 rotates inside the fixed ring 25, pulling the fixed ring 25 to move and the gear plate 10 to move. During the movement of the gear plate 10, the moving block 29 moves inside the fixed frame 28 to squeeze the second spring 30. The movement of the gear plate 10 causes the two gears 9 to rotate. The gear 9 rotates and drives the rotating shaft 7 and the cross rod 8 to rotate. The cross rod 8 rotates and drives the threaded rod 5 to rotate. Since the threaded rod 5 is threadedly connected with the threaded ring 22, the threaded rod 5 is screwed downward and stretches the first spring 20. The threaded rod 5 is screwed in and drives the rubber pad 21 to clamp and position the printed circuit board 3. The gear plate 10 moves and drives the two inclined surfaces 11 to move and squeeze the guide rod 13. The guide rod 13 moves and drives the trapezoidal block 14 to move and squeeze the roller 35. During the movement of the trapezoidal block 14, the slider 32 slides inside the slide 31 and stretches the third spring 33. The roller 35 is moved by the trapezoidal block 1 4 is squeezed and then moves upward, bringing the lifting frame 15 upward. The lifting frame 15 moves upward, bringing the spline rod 16 and the spline wheel 17 upward to compress the fourth spring 37. The spline wheel 17 moves upward to lift the movable seat 38 and brings the connecting frame 40 and the laser cutter 18 upward (the housings of the movable seat 38, the connecting frame 40 and the laser cutter 18 are made of aluminum). The threaded rod 5 screws downward to clamp and position the printed circuit board 3. At the same time, the laser cutter 18 moves upward and starts cutting the printed circuit board 3. When the printed circuit board 3 is relatively large, the laser cutter 18 starts to cut. When the printed circuit board 3 is thin, the threaded rod 5 screws in a large distance, and the laser cutter 18 moves upward a large distance. When the printed circuit board 3 is thick, the threaded rod 5 screws in a small distance, and the laser cutter 18 moves upward a small distance. The cutting distance between the thinner printed circuit board 3 and the laser cutter 18 is larger than that between the thicker printed circuit board 3 and the laser cutter 18. When the laser cutter 18 cuts the thinner printed circuit board 3, carbon black is prevented from appearing at the cut surface of the printed circuit board 3, thereby ensuring the cutting quality of the printed circuit board 3 by the laser cutter 18.As the threaded rod 5 rotates downward, it clamps and positions the printed circuit board 3 with the rubber pad 21. The toothed plate 10 moves, causing the two ramps 11 to move and squeeze the guide rod 13. The guide rod 13 moves, causing the trapezoidal block 14 to move and squeeze the roller 35. After being squeezed by the trapezoidal block 14, the roller 35 moves upward, causing the lifting frame 15 to move upward. The lifting frame 15 moves upward, causing the splined rod 16 and splined wheel 17 to move upward. The splined wheel 17 moves upward, lifting the movable seat 38 and causing the connecting frame 40 and laser cutter 18 to move upward. Compared to some traditional laser cutting equipment, this laser cutting device achieves the goal of simultaneously clamping and positioning the printed circuit board 3 with the threaded rod 5 rotating downward, and completing the height adjustment of the laser cutter 18. No manual intervention is required to adjust the cutting distance. This operation is simple, time-saving, and labor-saving, which increases the cutting speed of the printed circuit board 3 and thereby improves the cutting efficiency of the printed circuit board 3.

[0043] Example 2: Please refer to Figure 1 - Figure 11 , combined with the basis of embodiment 1, what is different is that a movable moving seat 38 is provided above the two spline wheels 17, and a moving groove 39 is provided on the bottom surface of the moving seat 38 in contact with the spline wheel 17. A connecting frame 40 is fixedly installed between the laser cutter 18 and the two moving seats 38, and a mounting plate 41 is provided on one side of the vertical frame 49. The surface of the mounting plate 41 is provided with a through vertical groove 42. The interior of the vertical groove 42 is slidably connected to a sliding seat 43 that matches it. A micro-expander 44 is fixedly installed on the surface of the sliding seat 43. The micro-expander 44 is a conventional micro-electric control push rod in the prior art. A common fixing plate 45 is fixedly installed between the two connecting frames 40. The telescopic end of the micro-expander 44 is fixedly connected to the surface of the common fixing plate 45. The lifting frame 15 moves upward with the spline rod 16 and the spline wheel 17, so that the moving seat 38 moves upward. The upward movement brings the connecting frame 40 and the laser cutter 18 upward. When the position on the surface of the printed circuit board 3 needs to be cut, the movable block 52 moves with the mounting plate 41 and the micro-retractor 44 in the slot 50. The micro-retractor 44 moves with the moving seat 38, the connecting frame 40 and the laser cutter 18. During the movement of the moving seat 38, the spline wheel 17 slides on the surface of the spline rod 16. The micro-retractor 44 extends and moves with the co-fixing plate 45. The co-fixing plate 45 moves with the connecting frame 40 and the laser cutter 18. The connecting frame 40 moves with the moving seat 38, so that the spline wheel 17 rolls inside the moving groove 39. During the process of adjusting the height of the laser cutter 18 and moving the laser cutter 18 to the position to be cut, the spline wheel 17 can both rotate and slide on the surface of the spline rod 16, thereby increasing the flexibility of the cutting equipment.

[0044] A base 46 is fixedly mounted on the bottom surface of the support platform 1, a shell 47 is fixedly mounted on the surface of the base 46, and a controller 48 is fixedly mounted on the surface of the shell 47. The controller 48 is a conventional programmable control device in the prior art. The controller 48 controls the operation of the micro-retractor 44 and the motor 53. It is an existing technology that can be installed and operated by those skilled in the art. No further details will be given here. The controller 48 is electrically connected to the micro-retractor 44 through a wire.

[0045] A slot 50 is provided on the inner side surface of the vertical frame 49, and a screw rod 51 is rotatably connected inside the slot 50. A movable block 52 is threadedly connected to the surface of the screw rod 51. The movable block 52 matches the slot 50. The surface of the movable block 52 is fixedly connected to the mounting plate 41. A motor 53 is fixedly installed on the side surface of the vertical frame 49. The motor 53 is a conventional forward and reverse motor in the prior art. The output end of the motor 53 is fixedly connected to the screw rod 51, and the motor 53 is electrically connected to the controller 48 through a wire.

[0046] The use steps of the present invention are as follows: when the automobile PCB cutting device with a positioning function is in use, the threaded rod 5 is screwed in downward to clamp and position the printed circuit board 3. At the same time, after the height adjustment of the laser cutter 18 is completed, the controller 48 is operated according to the position where the printed circuit board 3 needs to be cut. The controller 48 controls the motor 53 to rotate and drive the screw rod 51 to rotate, so that the movable block 52 moves in the slot 50 and drives the mounting plate 41 and the micro-retractor 44 to move. The micro-retractor 44 drives the moving seat 38, the connecting frame 40 and the laser cutter 18 to move. During the movement of the moving seat 38, the spline wheel 17 slides on the surface of the spline rod 16, and then the micro-retractor 44 extends to drive the co-fixing plate 45 to move. The co-fixing plate 45 drives the connecting frame 40 and the laser cutter 18 to move. The connecting frame 40 drives the moving seat 38 to move, so that the spline wheel 17 rolls inside the moving groove 39. When the laser cutter 18 moves to the position where the printed circuit board 3 needs to be cut, the micro-retractor 44 and the motor 53 stop working. At this time The laser cutter 18 works to cut the printed circuit board 3. The lifting frame 15 of this scheme moves upward, carrying the spline rod 16 and the spline wheel 17 upward, so that the movable seat 38 moves upward, carrying the connecting frame 40 and the laser cutter 18 upward. When the position on the surface of the printed circuit board 3 needs to be cut, the movable block 52 moves in the slot 50 with the mounting plate 41 and the micro-retractor 44. The micro-retractor 44 moves with the movable seat 38, the connecting frame 40 and the laser cutter 18. During the movement of the movable seat 38, the spline wheel 17 slides on the surface of the spline rod 16. The micro-retractor 44 extends out and moves with the co-fixing plate 45. The co-fixing plate 45 moves with the connecting frame 40 and the laser cutter 18. The connecting frame 40 moves with the movable seat 38, so that the spline wheel 17 rolls inside the movable groove 39. During the process of adjusting the height of the laser cutter 18 and moving the laser cutter 18 to the position to be cut, the spline wheel 17 can both rotate and slide on the surface of the spline rod 16, thereby increasing the flexibility of the cutting equipment.

[0047] The automotive PCB cutting method with positioning function includes the following steps:

[0048] S1: First, place the printed circuit board 3 on the surface of the cutting table 2 with your left hand so that the two corners of the printed circuit board 3 are aligned with the rubber pad 21. Then, turn the knob 27 with your right hand. The threaded tube 24 follows the knob 27 and screws inwardly toward the outside of the support frame 23. At this time, the rotating block 26 rotates in the fixed ring 25, and pulls the fixed ring 25 to move the gear plate 10. During the movement of the gear plate 10, the moving block 29 moves inside the fixed frame 28 to squeeze the second spring 30. The movement of the gear plate 10 rotates the two gears 9. The rotation of the gear 9 rotates the rotating shaft 7 and the cross rod 8. The rotation of the cross rod 8 rotates the threaded rod 5. Since the threaded rod 5 is threadedly connected to the threaded ring 22, the threaded rod 5 screws inwardly to stretch the first spring 20. The threaded rod 5 screws inwardly and clamps the printed circuit board 3 with the rubber pad 21 to position it.

[0049] S2: As the toothed plate 10 moves, it moves the two ramps 11 to squeeze the guide rod 13. The guide rod 13 moves, and the trapezoidal block 14 moves, squeezing the roller 35. During the movement of the trapezoidal block 14, the slider 32 slides inside the carriage 31, stretching the third spring 33. The roller 35 is squeezed by the trapezoidal block 14 and moves upward, bringing the lifting frame 15 upward. The lifting frame 15 moves upward, and the spline rod 16 and the spline wheel 17 move upward, compressing the fourth spring 37.

[0050] S3: The spline wheel 17 moves upward to lift the movable seat 38 and move the connecting frame 40 and the laser cutter 18 upward. After the threaded rod 5 is screwed downward to clamp and position the printed circuit board 3, the laser cutter 18 moves upward at the same time. The laser cutter 18 works to cut the printed circuit board 3.

[0051] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive PCB cutting device with a positioning function, comprising a support table (1) and a cutting table (2) fixedly mounted on the surface thereof, characterized in that: A printed circuit board (3) to be cut is placed on the surface of the cutting table (2), and a laser cutter (18) for cutting the printed circuit board (3) is provided above the printed circuit board (3). An L-shaped frame (4) is fixedly installed on the side surface of the cutting table (2), and a threaded rod (5) that can be screwed downward is correspondingly provided on the end surface of the L-shaped frame (4). A support seat (6) is fixedly installed on the surface of the L-shaped frame (4), and a rotating shaft (7) is correspondingly connected to the end surface of the support seat (6). A cross rod (8) for driving the threaded rod (5) to move is fixedly installed on the bottom surface of the two rotating shafts (7). A gear (9) is fixedly installed on the top surface of the rotating shaft (7). A toothed plate (10) meshing with the gear (9) is slidably connected above the support seat (6). The surface of the toothed plate (10) Two slope surfaces (11) are correspondingly provided, and a mounting frame (12) is fixedly installed on the side surface of the support seat (6), and the surfaces of the two mounting frames (12) are slidably connected with guide rods (13), and one end of the two guide rods (13) is respectively in contact with the two slope surfaces (11), and one end of the guide rod (13) is fixedly installed with a trapezoidal block (14), and one side of the two trapezoidal blocks (14) is provided with a lifting frame (15) that can move vertically up and down, and the top inner side surface of the lifting frame (15) is rotatably connected to a spline rod (16), and the surface of the spline rod (16) is provided with a spline wheel (17) that can be both rotated and slidable, and the threaded rod (5) is screwed downward to clamp and position the printed circuit board (3), while the lifting frame (15) moves upward to adjust the height of the laser cutter (18); A vertical frame (49) is fixedly mounted on the surface of the support platform (1), and two supporting links (34) are correspondingly fixedly mounted on the surface of the vertical frame (49), and the lifting frame (15) is slidably connected to the supporting links (34), and the inner side surface of the bottom of the lifting frame (15) is rotatably connected to a roller (35), and the roller (35) contacts the surface of the trapezoidal block (14), and the inner side surface of the lifting frame (15) is fixedly mounted with a fixing plate (36), and a fourth spring (37) is elastically connected between the fixing plate (36) and the supporting links (34), and one end of the fourth spring (37) is fixedly connected to the surface of the fixing plate (36), and the other end of the fourth spring (37) is fixedly connected to the supporting links (34); A movable movable seat (38) is provided above the two spline wheels (17), and a movable groove (39) in contact with the spline wheel (17) is provided on the bottom surface of the movable seat (38). A connecting frame (40) is fixedly installed between the laser cutter (18) and the two movable seats (38). A mounting plate (41) is provided on one side of the vertical frame (49), and a through vertical groove (42) is provided on the surface of the mounting plate (41). A sliding seat (43) matching the vertical groove (42) is slidably connected inside the vertical groove (42), and a micro telescopic device (44) is fixedly installed on the surface of the sliding seat (43). A common fixing plate (45) is fixedly installed between the two connecting frames (40), and the telescopic end of the micro telescopic device (44) is fixedly connected to the surface of the common fixing plate (45).

2. The automotive PCB cutting device with positioning function according to claim 1, characterized in that: The top surfaces of the two threaded rods (5) are each provided with a cross slot (19) that matches the cross rod (8), the cross rod (8) and the cross slot (19) are plugged into each other, and a first spring (20) is elastically connected between the cross rod (8) and the cross slot (19), one end of the first spring (20) is fixedly connected to the bottom surface of the cross rod (8), and the other end of the first spring (20) is fixedly connected to the inner bottom surface of the cross slot (19), and the bottom surfaces of the two threaded rods (5) and the surface of the cutting table (2) are fixedly installed with rubber pads (21), after the printed circuit board (3) is clamped and positioned, the two pairs of rubber pads (21) contact the surface and bottom surface of the printed circuit board (3), and the bottom surface of the L-shaped frame (4) is correspondingly fixedly installed with a threaded ring (22) that is threadedly connected to the threaded rod (5).

3. The automotive PCB cutting device with positioning function according to claim 2, characterized in that: A support frame (23) is fixedly mounted on the side surface of the L-shaped frame (4), a threaded tube (24) is threadedly connected to the surface of the support frame (23), a fixing ring (25) is fixedly mounted on one end surface of the toothed plate (10), a rotating block (26) is fixedly mounted on one end surface of the threaded tube (24), the rotating block (26) is rotatably connected to the fixing ring (25), and a knob (27) is fixedly mounted on the other end surface of the threaded tube (24).

4. The automotive PCB cutting device with positioning function according to claim 3, characterized in that: A fixing frame (28) is fixedly mounted on the surface of the support seat (6), and a matching moving block (29) is slidably connected inside the fixing frame (28), and the top surface of the moving block (29) is fixedly connected to the bottom surface of the tooth plate (10), and the tooth plate (10) is slidably connected to the fixing frame (28) through the moving block (29), and a second spring (30) is elastically connected between the moving block (29) and the fixing frame (28), one end of the second spring (30) is fixedly connected to the moving block (29), and the other end of the second spring (30) is fixedly connected to the inner wall of the fixing frame (28).

5. The automotive PCB cutting device with positioning function according to claim 1, characterized in that: A slide (31) is fixedly mounted on the surfaces of the two mounting frames (12), and a matching slider (32) is slidably connected inside the slide (31), and the slider (32) is fixedly connected to the bottom surface of the trapezoidal block (14). A third spring (33) is elastically connected between the slider (32) and the slide (31), and one end of the third spring (33) is fixedly connected to the slider (32), and the other end of the third spring (33) is fixedly connected to the inner wall of the slide (31).

6. The automotive PCB cutting device with positioning function according to claim 1, characterized in that: A base (46) is fixedly mounted on the bottom surface of the support platform (1), a housing (47) is fixedly mounted on the surface of the base (46), a controller (48) is fixedly mounted on the surface of the housing (47), and the controller (48) is electrically connected to the micro-telescopic device (44) via a wire.

7. The automotive PCB cutting device with positioning function according to claim 1, characterized in that: The inner side surface of the vertical frame (49) is provided with a slot (50), the interior of the slot (50) is rotatably connected to a screw rod (51), the surface of the screw rod (51) is threadedly connected to a movable block (52), the movable block (52) matches the slot (50), the surface of the movable block (52) is fixedly connected to the mounting plate (41), a motor (53) is fixedly installed on the side surface of the vertical frame (49), the output end of the motor (53) is fixedly connected to the screw rod (51), and the motor (53) is electrically connected to the controller (48) through a wire.

8. A method for cutting an automobile PCB with a positioning function, using the automobile PCB cutting device with a positioning function according to claim 7, characterized in that: The following steps are involved: S1: First, place the printed circuit board (3) on the surface of the cutting table (2) with your left hand so that the two corners of the printed circuit board (3) are aligned with the rubber pad (21). Then, turn the knob (27) with your right hand. The threaded tube (24) follows the knob (27) and moves toward the outside of the support frame (23). At this time, the rotating block (26) rotates in the fixed ring (25) and pulls the fixed ring (25) to move with the tooth plate (10). During the movement of the tooth plate (10), the moving block (29) moves in the fixed ring. The frame (28) moves internally to squeeze the second spring (30), the toothed plate (10) moves to rotate the two gears (9), the gears (9) rotate to rotate the shaft (7) and the cross rod (8), the cross rod (8) rotates to rotate the threaded rod (5), and since the threaded rod (5) is threadedly connected to the threaded ring (22), the threaded rod (5) screws downward to stretch the first spring (20), and the threaded rod (5) screws in to move with the rubber pad (21) to clamp and position the printed circuit board (3); S2: The tooth plate (10) moves while the two inclined surfaces (11) move to squeeze the guide rod (13), the guide rod (13) moves while the trapezoidal block (14) moves to squeeze the roller (35), the trapezoidal block (14) moves while the slider (32) slides inside the slide (31) to stretch the third spring (33), the roller (35) is squeezed by the trapezoidal block (14) and moves upward, and the lifting frame (15) moves upward, and the lifting frame (15) moves upward, and the spline rod (16) and the spline wheel (17) move upward to compress the fourth spring (37); S3: The spline wheel (17) moves upward to lift the movable seat (38) and move the connecting frame (40) and the laser cutter (18) upward. After the threaded rod (5) is screwed downward to clamp and position the printed circuit board (3), the laser cutter (18) moves upward and the laser cutter (18) works to cut the printed circuit board (3).

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