A punching and cutting device for PCB circuit board processing

Abstract

The present invention belongs to the technical field of circuit board processing, and discloses a punching and cutting device for PCB circuit board processing; it includes a workbench, a cutting device and a punching device, and the cutting device and the punching device are both installed on the workbench. The present invention sets a laying component, clamps one end of the aluminum sheet by an electric clamp, starts the motor to drive the gear, and the gear moves on the rack to drive the clamp to move, and the clamp lays the aluminum sheet on the PCB circuit board to be punched, and after the laying is completed, it is cut by the cutting component, and the first electric push rod is started to drive the circular pressure block to move downward, and the circular pressure block drives the matching circular plate to clamp the aluminum sheet and the PCB circuit board. During the clamping process, the pressing block first contacts the aluminum sheet, and the circular pressure block continues to move downward. The circular pressure block can pull the aluminum sheet to the four corners of the PCB circuit board, so that the aluminum sheet is laid flatly, thereby achieving the purpose of laying the aluminum sheet flatly on the PCB circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and more specifically, to a punching and cutting device for PCB circuit board processing. Background Art

[0002] PCB or printed circuit board is the carrier of electrical connection of electronic components. During the production and processing of PCB, special cutting equipment and punching equipment are needed to process it. The cutting operation process is as follows: place the PCB to be cut under the cutting head, cut the PCB by laser cutting equipment, cut it into the specified size, place the cut PCB on the punching equipment, and punch holes in the PCB by the punching head.

[0003] Existing punching equipment will generate a lot of heat when punching holes in PCB circuit boards. Usually, a blower head is set to continuously blow air to cool the punching head, but the heat of the punching head will still accumulate, and heat will also accumulate on the PCB circuit board. Usually, a layer of aluminum foil is laid on the PCB circuit board before punching. The aluminum foil has the functions of protecting the PCB circuit board from scratches, improving drilling accuracy, and reducing the temperature of the PCB circuit board and the punching head. However, the current punching equipment is not convenient for automatically laying aluminum foil on the circuit board, and the laying operation is relatively cumbersome. Summary of the invention

[0004] The present invention aims to solve the problem that the current punching equipment in the background technology is inconvenient to automatically lay aluminum sheets on the circuit board, and proposes a punching and cutting device for PCB circuit board processing.

[0005] To achieve the above object, the present invention provides the following technical solution: a punching and cutting device for PCB circuit board processing, comprising a workbench, a cutting device and a punching device, wherein the cutting device and the punching device are both installed on the workbench, and further comprising:

[0006] Aluminum sheet, the aluminum sheet is wound and fixed on the surface of the rotating shaft, the rotating shaft is rotatably connected to the workbench through two fixing plates, the workbench is provided with a laying component for automatically laying the aluminum sheet, and the workbench is also provided with a cutting component for automatically cutting the aluminum sheet;

[0007] The clamping assembly is arranged on the workbench and below the punching device. The clamping assembly is used to clamp and fix the PCB circuit board with the aluminum sheet laid thereon. The clamping assembly is provided with a leveling assembly for leveling the aluminum sheet on the PCB circuit board.

[0008] Furthermore, the laying assembly includes two moving blocks slidably connected to the workbench, each of the moving blocks is equipped with an electric clamp for clamping one end of the aluminum sheet, a connecting plate passing through the side wall of the workbench is fixedly connected to the moving block, a motor is fixedly connected to the connecting plate, a gear is fixedly connected to the output shaft of the motor, and a rack meshing with the gear is fixedly connected to the side wall of the workbench.

[0009] Furthermore, the cutting assembly includes a blade arranged just above one end of the aluminum sheet, a mounting seat is fixedly connected to the blade, a base fixedly connected to the workbench is arranged just below the blade, an avoidance groove facing the blade is provided on the base and the top of the base is in contact with the aluminum sheet, two L-shaped plates are fixedly connected to the mounting seat, a guide rod penetrating the L-shaped plate is fixedly connected to the workbench, a first spring sleeved on the outside of the guide rod is fixedly connected between the L-shaped plate and the workbench, an L-shaped connecting plate is fixedly connected to one of the L-shaped plates, a fixing column is fixedly connected to the L-shaped connecting plate, and an outer wall at one end of the rotating shaft is provided with a A first external thread and a second external thread, the first external thread is connected to the second external thread, the thread density of the first external thread is less than that of the second external thread, the rotating shaft is threadedly connected to a movable plate through the first external thread, the movable plate is slidably inserted on the movable seat, the movable seat is slidably connected to the workbench, the bottom of the movable plate and the bottom inner wall of the movable seat are both fixedly connected with electromagnets, a second spring is fixedly connected between the movable seat and the fixed plate, a connecting rod is fixedly connected to the movable plate, one end of the connecting rod is fixedly connected to a triangular block, and the inclined surface of the triangular block is directly opposite to the top of the fixed column.

[0010] Furthermore, the clamping assembly includes two first electric push rods fixedly connected to the workbench, the output ends of the first electric push rods are fixedly connected to a lifting plate, a circular pressure block is fixedly connected between the two lifting plates, and a circular plate is arranged on the workbench.

[0011] Furthermore, two second electric push rods are fixedly connected to the workbench, the output ends of the second electric push rods are fixedly connected to a square plate, a limit block is fixedly connected to the square plate, a limit slot is provided on the limit block, one end of the circular plate is rotatably connected to the workbench, the other end of the circular plate is fixedly connected to a fixing rod, one end of the fixing rod is located in the limiting slot, an arc track is provided on the workbench, and the fixing rod slides in the arc track.

[0012] Furthermore, the leveling assembly includes notches opened at the four corners of the circular pressure block, the top of the notch is rotatably connected to a first connecting rod, the bottom end of the first connecting rod is rotatably connected to a clamping block, a third spring is fixed between the first connecting rod and the top of the notch, and the side wall of the notch is fixed with a fixed block for keeping the first connecting rod in an inclined state.

[0013] Furthermore, a U-shaped plate is slidably arranged on the workbench, a third electric push rod is fixedly connected to the U-shaped plate, an output end of the third electric push rod is fixedly connected to a mounting plate, and a plurality of suction cups are installed on the top of the mounting plate.

[0014] Furthermore, the workbench is provided with a positioning assembly for positioning the PCB circuit board, the positioning assembly includes an L-shaped baffle plate slidably inserted on the workbench, a fourth spring is fixedly connected between the L-shaped baffle plate and the workbench, two lifting blocks are slidably connected to the workbench, a second connecting rod is rotatably connected between the lifting block and the L-shaped baffle plate, a U-shaped rod is fixedly connected to the bottom of the mounting plate, and one end of the U-shaped rod abuts against the bottom of the lifting block.

[0015] Furthermore, a horizontal block is fixed between the workbenches, and a through opening and a cavity are opened on the horizontal block. The aluminum sheet passes through the through opening, and a fifth spring is fixed to the bottom of the cavity. One end of the fifth spring is fixed to a sliding plate slidably connected in the cavity, and a connecting column is fixed to the top of the sliding plate, and a roller is fixed to the top of the connecting column. The aluminum sheet is pressed against the top of the through opening by the roller.

[0016] The technical effects and advantages of the punching and cutting device for PCB circuit board processing of the present invention are as follows:

[0017] (1) By setting a laying component, one end of the aluminum sheet is clamped by an electric clamp, and the motor is started to drive the gear. The gear moves on the rack to drive the clamp to move. The clamp lays the aluminum sheet on the PCB circuit board to be punched. After the laying is completed, it is cut by the cutting component. The first electric push rod is started to drive the circular pressure block to move downward. The circular pressure block drives the matching circular plate to clamp the aluminum sheet and the PCB circuit board. During the clamping process, the clamping block first contacts the aluminum sheet, and the circular pressure block continues to move downward. The circular pressure block can pull the aluminum sheet to the four corners of the PCB circuit board, so that the aluminum sheet is laid flatly, thereby achieving the purpose of laying the aluminum sheet flatly on the PCB circuit board.

[0018] (2) By setting a cutting component, when the aluminum sheet is pulled out to a certain length, it needs to be cut. During the process of pulling out the aluminum sheet, the aluminum sheet drives the rotating shaft to rotate continuously. The rotating shaft drives the moving plate to move through the first external thread. The moving plate drives the triangular block to continuously approach the fixed column. The moving plate drives the moving seat to move, and the second spring is compressed. When the moving plate enters the second external thread from the first external thread, the moving plate will instantly move a large distance. The moving plate can drive the triangular block to move toward the fixed column instantly, and the inclined surface of the triangular block can press the fixed column downward. The fixed column drives the blade to move downward instantly through the L-shaped connecting plate, the L-shaped plate and the mounting plate. The blade can cut the aluminum sheet. After the cutting is completed, the two electromagnets are not energized. Under the action of gravity, the moving plate moves downward. The moving plate is not threadedly connected to the second external thread. Under the action of the second spring, it returns to the original position. Then the two electromagnets are energized. The two electromagnets repel each other, so that the moving plate is threadedly connected to the first external thread again. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a first partial three-dimensional structure in the present invention;

[0021] Figure 3 It is a schematic diagram of a second partial three-dimensional structure in the present invention;

[0022] Figure 4 It is a schematic diagram of the cutting component and the laying component in the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of one end of the rotating shaft in the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the circular plate in the present invention;

[0025] Figure 7 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0026] Figure 8 It is a schematic diagram of the positioning component in the present invention;

[0027] Fig. 9 It is a schematic cross-sectional view of a horizontal block in the present invention.

[0028] In the figure:

[0029] 1. Workbench; 2. Cutting equipment; 3. Punching equipment; 4. Fixed plate; 5. Rotating shaft; 6. Aluminum sheet; 7. Moving block; 8. Electric clamp; 9. Connecting plate; 10. Motor; 11. Gear; 12. Rack; 13. Blade; 14. Mounting seat; 15. Base; 16. L-shaped plate; 17. Guide rod; 18. First spring; 19. L-shaped connecting plate; 20. Fixed column; 21. First external thread; 22. Second external thread; 23. Moving plate; 24. Moving seat; 25. Electromagnet; 26. Second spring; 27. Connecting rod; 28. Triangular block; 29. ​​First electric push rod; 3 0. Lifting plate; 31. Round pressure block; 32. Round plate; 33. Second electric push rod; 34. Square plate; 35. Limit block; 36. Fixed rod; 37. Arc track; 38. Notch; 39. First connecting rod; 40. Tightening block; 41. Third spring; 42. U-shaped plate; 43. Third electric push rod; 44. Mounting plate; 45. Suction cup; 46. L-shaped baffle; 47. Fourth spring; 48. Second connecting rod; 49. Lifting block; 50. U-shaped rod; 51. Horizontal block; 52. Through port; 53. Cavity; 54. Fifth spring; 55. Sliding plate; 56. Connecting column; 57. Roller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Fig. 9 A punching and cutting device for PCB circuit board processing includes a workbench 1, a cutting device 2 and a punching device 3, wherein the cutting device 2 and the punching device 3 are both installed on the workbench 1, and further includes:

[0032] Aluminum sheet 6, the aluminum sheet 6 is wound and fixedly connected to the surface of the rotating shaft 5, the rotating shaft 5 is rotatably connected to the workbench 1 through two fixing plates 4, the workbench 1 is provided with a laying component for automatically laying the aluminum sheet 6, and the workbench 1 is also provided with a cutting component for automatically cutting the aluminum sheet 6;

[0033] A clamping assembly, which is arranged on the workbench 1 and below the punching device 3, and is used to clamp and fix the PCB circuit board on which the aluminum sheet 6 is laid, and a leveling assembly is provided on the clamping assembly for leveling the aluminum sheet 6 on the PCB circuit board;

[0034] When in use, the PCB circuit board raw material is placed on the workbench 1, and the PCB circuit board raw material can be cut by the cutting device 2 to the size of the PCB circuit board. The cut PCB circuit board is placed under the punching device 3, and the aluminum skin 6 is automatically laid on the PCB circuit board by the laying component. After the laying is completed, the aluminum skin 6 is automatically cut off by the cutting component. After the cutting is completed, the PCB circuit board and the aluminum skin 6 are clamped by the clamping component. During the clamping process, the flattening component can lay the aluminum skin 6 flat to prevent wrinkles from affecting the punching, and the PCB circuit board can be punched by the punching device 3.

[0035] Reference Figure 3 and Figure 4 The laying component includes two moving blocks 7 slidably connected to the workbench 1, and the moving blocks 7 are each equipped with an electric clamp 8 for clamping one end of the aluminum sheet 6. A connecting plate 9 that passes through the side wall of the workbench 1 is fixedly connected to the moving block 7, and a motor 10 is fixedly connected to the connecting plate 9. The output shaft of the motor 10 is fixedly connected to a gear 11, and the side wall of the workbench 1 is fixedly connected to a rack 12 that meshes with the gear 11; when it is necessary to lay the aluminum sheet 6 on the PCB circuit board, one end of the aluminum sheet 6 is clamped by the electric clamp 8, and the motor 10 is started. The motor 10 drives the gear 11 to rotate, so that the gear 11 moves on the rack 12, thereby driving one end of the aluminum sheet 6 to move through the connecting plate 9, the moving block 7 and the electric clamp 8, and the aluminum sheet 6 is pulled out from the rotating shaft 5 until the aluminum sheet 6 is laid on the PCB circuit board. After being cut off by the cutting component, the electric clamp 8 is driven to reset by the motor 10.

[0036] Reference Figure 4 and Figure 5The cutting assembly includes a blade 13 arranged just above one end of the aluminum sheet 6, a mounting seat 14 is fixedly connected to the blade 13, a base 15 fixedly connected to the workbench 1 is arranged just below the blade 13, an avoidance groove corresponding to the blade 13 is provided on the base 15, and the top of the base 15 is in contact with the aluminum sheet 6, two L-shaped plates 16 are fixedly connected to the mounting seat 14, a guide rod 17 penetrating the L-shaped plate 16 is fixedly connected to the workbench 1, a first spring 18 sleeved on the outside of the guide rod 17 is fixedly connected between the L-shaped plate 16 and the workbench 1, one of the L-shaped plates 16 is fixedly connected to an L-shaped connecting plate 19, and a fixing column 20 is fixedly connected to the L-shaped connecting plate 19, and a first spring 18 is fixedly connected to the outer wall of one end of the rotating shaft 5. an external thread 21 and a second external thread 22, the first external thread 21 is connected to the second external thread 22, the thread density of the first external thread 21 is less than the thread density of the second external thread 22, the rotating shaft 5 is threadedly connected to a movable plate 23 through the first external thread 21, the movable plate 23 is slidably inserted on a movable seat 24, the movable seat 24 is slidably connected to the workbench 1, the bottom of the movable plate 23 and the bottom inner wall of the movable seat 24 are both fixedly connected with an electromagnet 25, a second spring 26 is fixedly connected between the movable seat 24 and the fixed plate 4, a connecting rod 27 is fixedly connected to the movable plate 23, one end of the connecting rod 27 is fixedly connected to a triangular block 28, and the inclined surface of the triangular block 28 is directly opposite to the fixed column 2 0; in the process of the aluminum sheet 6 being pulled out from the rotating shaft 5, the rotating shaft 5 rotates continuously, and the rotating shaft 5 rotates continuously, which can drive the movable plate 23 to move through the first external thread 21, and the movable plate 23 drives the connecting rod 27 and the triangular block 28 to move slowly, so that the triangular block 28 approaches the fixed column 20, and the movable plate 23 drives the movable seat 24 to move, and the second spring 26 is compressed. When the aluminum sheet 6 is laid, the movable plate 23 will enter the second external thread 22 from the first external thread 21, and the movable plate 23 is threadedly connected with the second external thread 22. Since the thread density of the first external thread 21 is less than that of the second external thread 22, the movable plate 23 will instantly move a large distance after entering the second external thread 22, and the movable plate 23 passes through the second external thread 22. The triangular block 28 presses the fixed column 20 to move downward, and the fixed column 20 moves downward through the L-shaped connecting plate 19, the L-shaped plate 16 and the mounting seat 14. The mounting seat 14 drives the blade 13 to move downward, and the blade 13 cuts the aluminum skin 6. After the cutting is completed, the two electromagnets 25 are powered off, and the moving plate 23 moves downward under the action of gravity. The moving plate 23 is not threadedly connected to the second external thread 22. Under the action of the second spring 26, the moving seat 24 and the moving plate 23 return to their original positions, and the two electromagnets 25 are turned on. The two electromagnets 25 repel each other, so that the moving plate 23 moves upward and is threadedly connected to the first external thread 21 again. Under the action of the first spring 18, the blade 13 is reset.

[0037] Reference Figure 3The clamping assembly includes two first electric push rods 29 fixedly connected to the workbench 1, the output end of the first electric push rods 29 is fixedly connected to a lifting plate 30, a circular pressure block 31 is fixedly connected between the two lifting plates 30, and a circular plate 32 is provided on the workbench 1; when the aluminum sheet 6 is laid, the first electric push rod 29 is started, and the first electric push rod 29 drives the circular pressure block 31 to move downward through the lifting plate 30, and the circular pressure block 31 presses the aluminum sheet 6 and the PCB circuit board on the circular plate 32, so as to achieve the purpose of clamping the aluminum sheet 6 and the PCB circuit board, so that the aluminum sheet 6 fits tightly on the PCB circuit board.

[0038] Reference Figure 2 and Figure 6 Two second electric push rods 33 are fixedly connected to the workbench 1, and the output end of the second electric push rod 33 is fixedly connected to a square plate 34, and a limiting block 35 is fixedly connected to the square plate 34, and a limiting groove is provided on the limiting block 35, and one end of the circular plate 32 is rotatably connected to the workbench 1, and the other end of the circular plate 32 is fixedly connected to a fixing rod 36, and one end of the fixing rod 36 is located in the limiting groove, and an arc track 37 is provided on the workbench 1, and the fixing rod 36 slides in the arc track 37; when the PCB circuit board is punched, the second electric push rod 33 is started, and the second electric push rod 33 drives the square plate 34 to move upward, and the square plate 34 drives the limiting block 35 to move upward, and the limiting block 35 drives the fixing rod 36 to move upward, so that the fixing rod 36 slides in the arc track 37, so that the circular plate 32 rotates around the rotating connection, so that the circular plate 32 becomes inclined, and the PCB circuit board can slide off the circular plate 32.

[0039] Reference Figure 3 and Figure 7 The flattening assembly includes notches 38 opened at the four corners of the circular pressure block 31, the top of the notch 38 is rotatably connected to a first connecting rod 39, the bottom end of the first connecting rod 39 is rotatably connected to a tightening block 40, a third spring 41 is fixedly connected between the first connecting rod 39 and the top of the notch 38, and the side wall of the notch 38 is fixedly connected to a fixing block for keeping the first connecting rod 39 in an inclined state; during the downward movement of the circular pressure block 31, the tightening block 40 first contacts the aluminum skin 6, and the circular pressure block 31 continues to move downward. Since the first connecting rod 39 is in an inclined state, the tightening block 40 will move away from the side wall of the notch 38 after contacting the aluminum skin 6, that is, the four tightening blocks 40 move away from the center of the circular pressure block 31, pulling the aluminum skin 6 toward the four corners of the circular pressure block 31, eliminating the wrinkles of the aluminum skin 6 on the PCB circuit board, and making the aluminum skin 6 flatly laid on the PCB circuit board.

[0040] Reference Figure 2 and Figure 8A U-shaped plate 42 is slidably provided on the workbench 1, and a third electric push rod 43 is fixedly connected to the U-shaped plate 42. The output end of the third electric push rod 43 is fixedly connected to a mounting plate 44, and a plurality of suction cups 45 are installed on the top of the mounting plate 44; before the cutting device 2 cuts the PCB circuit board, the third electric push rod 43 is started, and the third electric push rod 43 drives the mounting plate 44 and the suction cup 45 to move upward, so that the suction cup 45 can suck the PCB circuit board. After the cutting is completed, the U-shaped plate 42 is moved on the workbench 1, so that the purpose of transporting the PCB circuit board can be achieved, and the PCB circuit board can be transported to the punching device 3.

[0041] Reference Figure 2 and Figure 8 The workbench 1 is provided with a positioning assembly for positioning the PCB circuit board, the positioning assembly includes an L-shaped baffle 46 slidably inserted on the workbench 1, a fourth spring 47 is fixedly connected between the L-shaped baffle 46 and the workbench 1, two lifting blocks 49 are slidably connected to the workbench 1, a second connecting rod 48 is rotatably connected between the lifting block 49 and the L-shaped baffle 46, a U-shaped rod 50 is fixedly connected to the bottom of the mounting plate 44, one end of the U-shaped rod 50 abuts against the bottom of the lifting block 49; the PCB circuit board to be cut is placed on the workbench 1, so that one end of the PCB circuit board abuts against the two L-shaped baffles 46, To achieve the positioning of the PCB circuit board, when the third electric push rod 43 is started to make the suction cup 45 suck the PCB circuit board, the upward movement of the mounting plate 44 can drive the U-shaped rod 50 to move upward, and the U-shaped rod 50 can push the lifting block 49 to move upward, and the lifting block 49 drives the L-shaped baffle 46 to move through the second connecting rod 48, and the fourth spring 47 is stretched, and the two L-shaped baffles 46 move to both sides, so that the L-shaped baffle 46 no longer blocks the PCB circuit board, which facilitates the subsequent suction cup 45 to transport the PCB circuit board. When the U-shaped rod 50 leaves the lifting block 49 along with the suction cup 45 to transport the PCB circuit board, under the action of the fourth spring 47, the L-shaped baffle 46 is reset.

[0042] Reference Figure 4 and Fig. 9 A horizontal block 51 is fixedly connected between the workbench 1, and a through-opening 52 and a cavity 53 are formed on the horizontal block 51. The aluminum sheet 6 passes through the through-opening 52, and a fifth spring 54 is fixedly connected to the bottom of the cavity 53. One end of the fifth spring 54 is fixedly connected to a sliding plate 55 slidably connected in the cavity 53, and a connecting column 56 is fixedly connected to the top of the sliding plate 55. A roller 57 is fixedly connected to the top of the connecting column 56, and the aluminum sheet 6 is pressed against the top of the through-opening 52 by the roller 57; in the process of pulling out the aluminum sheet 6, the aluminum sheet 6 continuously passes through the through-opening 52. Under the action of the fifth spring 54, the roller 57 always keeps pressure on the aluminum sheet 6, pressing the aluminum sheet 6 against the inner wall of the through-opening 52. When the blade 13 cuts off the aluminum sheet 6, the pressure of the roller 57 can prevent the aluminum sheet 6 from retracting.

[0043] Working principle: When in use, the raw material of the PCB circuit board is placed on the workbench 1, and the raw material of the PCB circuit board can be cut by the cutting device 2 to the size of the PCB circuit board, and the cut PCB circuit board is placed under the punching device 3, and the aluminum skin 6 is automatically laid on the PCB circuit board by the laying component, and the aluminum skin 6 is automatically cut off by the cutting component after the laying is completed. After the cutting is completed, the PCB circuit board and the aluminum skin 6 are clamped by the clamping component. During the clamping process, the flattening component can lay the aluminum skin 6 flat to prevent wrinkles from affecting the punching, and the PCB circuit board can be punched by the punching device 3;

[0044] When the aluminum sheet 6 needs to be laid on the PCB circuit board, one end of the aluminum sheet 6 is clamped by the electric clamp 8, and the motor 10 is started. The motor 10 drives the gear 11 to rotate, so that the gear 11 moves on the rack 12, thereby driving one end of the aluminum sheet 6 to move through the connecting plate 9, the moving block 7 and the electric clamp 8, and the aluminum sheet 6 is pulled out from the rotating shaft 5 until the aluminum sheet 6 is laid on the PCB circuit board. After being cut off by the cutting assembly, the electric clamp 8 is driven by the motor 10 to reset;

[0045] During the process of the aluminum sheet 6 being pulled out from the rotating shaft 5, the rotating shaft 5 rotates continuously, and the rotating shaft 5 rotates continuously, which can drive the movable plate 23 to move through the first external thread 21, and the movable plate 23 drives the connecting rod 27 and the triangular block 28 to move slowly, so that the triangular block 28 approaches the fixed column 20, and the movable plate 23 drives the movable seat 24 to move, and the second spring 26 is compressed. When the aluminum sheet 6 is laid, the movable plate 23 will enter the second external thread 22 from the first external thread 21, and the movable plate 23 is threadedly connected with the second external thread 22. Since the thread density of the first external thread 21 is less than that of the second external thread 22, the movable plate 23 will instantly move a large distance after entering the second external thread 22, and the movable plate 23 will move a large distance through the triangular block 28. The block 28 presses the fixed column 20, forcing the fixed column 20 to move downward, and the fixed column 20 moves downward through the L-shaped connecting plate 19, the L-shaped plate 16 and the mounting seat 14, and the mounting seat 14 drives the blade 13 to move downward, and the blade 13 cuts the aluminum sheet 6. After the cutting is completed, the two electromagnets 25 are powered off, and the moving plate 23 moves downward under the action of gravity. The moving plate 23 is not threadedly connected with the second external thread 22. Under the action of the second spring 26, the moving seat 24 and the moving plate 23 return to the original position, and the two electromagnets 25 are turned on. The two electromagnets 25 repel each other, so that the moving plate 23 moves upward and is threadedly connected with the first external thread 21 again. Under the action of the first spring 18, the blade 13 is reset;

[0046] When the aluminum sheet 6 is laid, the first electric push rod 29 is started, and the first electric push rod 29 drives the circular pressing block 31 to move downward through the lifting plate 30, and the circular pressing block 31 presses the aluminum sheet 6 and the PCB circuit board on the circular plate 32, so as to achieve the purpose of clamping the aluminum sheet 6 and the PCB circuit board, so that the aluminum sheet 6 is closely attached to the PCB circuit board;

[0047] When the PCB is punched, the second electric push rod 33 is started, and the second electric push rod 33 drives the square plate 34 to move upward, and the square plate 34 drives the limit block 35 to move upward, and the limit block 35 drives the fixing rod 36 to move upward, so that the fixing rod 36 slides in the arc track 37, so that the circular plate 32 rotates around the rotating connection, so that the circular plate 32 becomes inclined, and the PCB can slide off the circular plate 32;

[0048] During the downward movement of the circular pressing block 31, the pressing block 40 first contacts the aluminum sheet 6, and the circular pressing block 31 continues to move downward. Since the first connecting rod 39 is in an inclined state, the pressing block 40 contacts the aluminum sheet 6 and moves away from the side wall of the notch 38, that is, the four pressing blocks 40 move away from the center of the circular pressing block 31, and pull the aluminum sheet 6 toward the four corners of the circular pressing block 31, thereby eliminating the wrinkles of the aluminum sheet 6 on the PCB circuit board and making the aluminum sheet 6 lay flat on the PCB circuit board.

[0049] Before the cutting device 2 cuts the PCB, the third electric push rod 43 is started, and the third electric push rod 43 drives the mounting plate 44 and the suction cup 45 to move upward, so that the suction cup 45 can suck the PCB. After the cutting is completed, the U-shaped plate 42 moves on the workbench 1, so that the purpose of transporting the PCB can be achieved, and the PCB can be transported to the punching device 3.

[0050] The PCB circuit board to be cut is placed on the workbench 1, so that one end of the PCB circuit board is in contact with the two L-shaped baffles 46 to achieve the positioning of the PCB circuit board. When the third electric push rod 43 is started to make the suction cup 45 suck the PCB circuit board, the mounting plate 44 moves upward to drive the U-shaped rod 50 to move upward, and the U-shaped rod 50 can push the lifting block 49 to move upward. The lifting block 49 drives the L-shaped baffle 46 to move through the second connecting rod 48. The fourth spring 47 is stretched, and the two L-shaped baffles 46 move to both sides, so that the L-shaped baffle 46 no longer blocks the PCB circuit board, which is convenient for the subsequent suction cup 45 to transport the PCB circuit board. When the U-shaped rod 50 leaves the lifting block 49 along with the suction cup 45 to transport the PCB circuit board, the L-shaped baffle 46 is reset under the action of the fourth spring 47;

[0051] During the process of pulling out the aluminum skin 6, the aluminum skin 6 continuously passes through the through opening 52. Under the action of the fifth spring 54, the roller 57 always maintains pressure on the aluminum skin 6, pressing the aluminum skin 6 against the inner wall of the through opening 52. When the blade 13 cuts off the aluminum skin 6, the pressure of the roller 57 can prevent the aluminum skin 6 from retracting.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0053] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching and cutting device for PCB circuit board processing, comprising a workbench (1), a cutting device (2) and a punching device (3), wherein the cutting device (2) and the punching device (3) are both installed on the workbench (1), characterized in that: Also includes: Aluminum sheet (6), the aluminum sheet (6) is wound and fixedly connected to the surface of the rotating shaft (5), the rotating shaft (5) is rotatably connected to the workbench (1) through two fixing plates (4), the workbench (1) is provided with a laying component for automatically laying the aluminum sheet (6), and the workbench (1) is also provided with a cutting component for automatically cutting the aluminum sheet (6); A clamping assembly, the clamping assembly being arranged on the workbench (1) and located below the punching device (3), the clamping assembly being used to clamp and fix the PCB circuit board on which the aluminum sheet (6) is laid, and the clamping assembly being provided with a leveling assembly for leveling the aluminum sheet (6) on the PCB circuit board; The laying assembly comprises two moving blocks (7) slidably connected to a workbench (1), each moving block (7) being provided with an electric clamp (8) for clamping one end of the aluminum sheet (6), a connecting plate (9) penetrating the side wall of the workbench (1) being fixedly connected to the moving block (7), a motor (10) being fixedly connected to the connecting plate (9), a gear (11) being fixedly connected to the output shaft of the motor (10), and a rack (12) meshing with the gear (11) being fixedly connected to the side wall of the workbench (1); The cutting assembly comprises a blade (13) arranged just above one end of the aluminum sheet (6), a mounting seat (14) being fixedly connected to the blade (13), two L-shaped plates (16) being fixedly connected to the mounting seat (14), a guide rod (17) penetrating the L-shaped plate (16) being fixedly connected to the workbench (1), a first spring (18) being fixedly connected between the L-shaped plate (16) and the workbench (1), an L-shaped connecting plate (19) being fixedly connected to one of the L-shaped plates (16), a fixed column (20) being fixedly connected to the L-shaped connecting plate (19), a first external thread (21) and a second external thread (22) being formed on an outer wall of one end of the rotating shaft (5), the rotating shaft (5) being threadably connected to a movable plate (23) via the first external thread (21), a connecting rod (27) being fixedly connected to the movable plate (23), one end of the connecting rod (27) being fixedly connected to a triangular block (28), the inclined surface of the triangular block (28) being directly opposite to the top end of the fixed column (20); A base (15) fixedly connected to the workbench (1) is arranged directly below the blade (13); an avoidance groove facing the blade (13) is provided on the base (15); and the top of the base (15) is in contact with the aluminum sheet (6); the first external thread (21) is connected to the second external thread (22); the thread density of the first external thread (21) is less than the thread density of the second external thread (22); the movable plate (23) is slidably inserted on the movable seat (24); the movable seat (24) is slidably connected to the workbench (1); the bottom of the movable plate (23) and the bottom inner wall of the movable seat (24) are both fixedly connected with an electromagnet (25); and a second spring (26) is fixedly connected between the movable seat (24) and the fixed plate (4); The clamping assembly comprises two first electric push rods (29) fixedly connected to the workbench (1); the output ends of the first electric push rods (29) are fixedly connected to a lifting plate (30); a circular pressure block (31) is fixedly connected between the two lifting plates (30); and a circular plate (32) is provided on the workbench (1).

2. The punching and cutting device for PCB circuit board processing according to claim 1 is characterized in that: Two second electric push rods (33) are fixedly connected to the workbench (1); the output ends of the second electric push rods (33) are fixedly connected to a square plate (34); a limit block (35) is fixedly connected to the square plate (34); a limit slot is provided on the limit block (35); one end of the circular plate (32) is rotatably connected to the workbench (1); the other end of the circular plate (32) is fixedly connected to a fixing rod (36); one end of the fixing rod (36) is located in the limiting slot; an arc track (37) is provided on the workbench (1); the fixing rod (36) slides in the arc track (37).

3. The punching and cutting device for PCB circuit board processing according to claim 2, characterized in that: The leveling assembly comprises notches (38) formed at four corners of the circular pressure block (31); the top of the notch (38) is rotatably connected to a first connecting rod (39); the bottom of the first connecting rod (39) is rotatably connected to a clamping block (40); a third spring (41) is fixedly connected between the first connecting rod (39) and the top of the notch (38); and a fixing block for keeping the first connecting rod (39) in an inclined state is fixedly connected to the side wall of the notch (38).

4. The punching and cutting device for PCB circuit board processing according to claim 3 is characterized in that: A U-shaped plate (42) is slidably provided on the workbench (1), a third electric push rod (43) is fixedly connected to the U-shaped plate (42), an output end of the third electric push rod (43) is fixedly connected to a mounting plate (44), and a plurality of suction cups (45) are mounted on the top of the mounting plate (44).

5. The punching and cutting device for PCB circuit board processing according to claim 4, characterized in that: The workbench (1) is provided with a positioning assembly for positioning the PCB circuit board, the positioning assembly comprising an L-shaped baffle (46) slidably inserted on the workbench (1), a fourth spring (47) fixedly connected between the L-shaped baffle (46) and the workbench (1), two lifting blocks (49) slidably connected to the workbench (1), a second connecting rod (48) rotatably connected between the lifting blocks (49) and the L-shaped baffle (46), a U-shaped rod (50) fixedly connected to the bottom of the mounting plate (44), one end of the U-shaped rod (50) abutting against the bottom of the lifting block (49).

6. The punching and cutting device for PCB circuit board processing according to claim 5, characterized in that: A horizontal block (51) is fixedly connected between the workbenches (1), and a through-hole (52) and a cavity (53) are formed on the horizontal block (51). The aluminum sheet (6) passes through the through-hole (52), and a fifth spring (54) is fixedly connected to the bottom of the cavity (53). One end of the fifth spring (54) is fixedly connected to a sliding plate (55) slidably connected in the cavity (53), and a connecting column (56) is fixedly connected to the top of the sliding plate (55), and a roller (57) is fixedly connected to the top of the connecting column (56), and the aluminum sheet (6) is pressed against the top of the through-hole (52) by the roller (57).

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