A circuit board cutting device

Abstract

The application discloses a circuit board cutting device and relates to the technical field of circuit board cutting equipment.The application comprises a box body, a lifting mechanism and a driving mechanism are installed on the box body, the driving mechanism is transmissionally connected with semicircular notched rods, the number of the semicircular notched rods is two, and opposite moving telescopic mechanisms are respectively installed on the two semicircular notched rods.The application drives the two telescopic mechanisms to rotate along the gear ring through the semicircular notched rods, so that one cutter extends out of the box body, while the other cutter retracts into the box body, when the two cutters respectively move to the first circular rod and the second circular rod on the telescopic mechanism, at this time, the semicircular notched rods cannot drive the cutters to retract and move through the telescopic mechanism, the semicircular notched rods can only drive the cutters to rotate through the telescopic mechanism, so that the cutter extending out of the box body can rotate to cut and process the circuit board, then by exchanging the retraction states of the two cutters, the purpose of quickly replacing the cutters can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board cutting device, and particularly relates to a circuit board cutting device. BACKGROUND

[0002] The circuit board can be called a printed circuit board, is an important electronic component, is a support body of electronic components, and the circuit board makes the circuit miniaturized and intuitive, and plays an important role in batch production of fixed circuits and optimization of electrical appliance layout.

[0003] In the Chinese patent (application number CN202020182191.9), a kind of circuit board cutting device is disclosed, which relates to the technical field of circuit board processing, and specifically includes workbench and cutting table, the cutting table is fixedly connected on the upper surface of workbench, the top of inner wall of cutting table is provided with telescopic rod, the bottom of telescopic rod is fixedly connected with connecting plate, the bottom of connecting plate is provided with cutter, the position of workbench corresponding cutter is provided with recess, the position of both sides of connecting plate close to bottom is fixedly connected with fixed plate, the upper surface of fixed plate is provided with perforation, the position of the upper surface of fixed plate corresponding perforation is provided with round rod. By setting connecting plate, fixed plate, round rod, pressing plate, spring and clamping plate, the effect of pressing both ends of circuit board during cutting is achieved, and the problem that both ends of the circuit board to be cut are raised during cutting is solved.

[0004] The patent and prior art have the following technical problems in actual use:

[0005] 1. During production and processing of circuit board, cutting and slotting processing are often required, and the device can only cut and process circuit board, when slotting is required, cutting knife needs to be disassembled and replaced with slotting knife, so the replacement process is not only time-consuming, but also troublesome, therefore, it needs to be improved.

[0006] 2. Meanwhile, the cutting knife of the device will be partially worn due to external reasons after long-term use, while other parts of the cutting knife are intact, in order to ensure the cutting quality of circuit board, the cutting knife needs to be replaced, at this time, if only the intact part of the cutting knife is used to cut the circuit board, the quality can be guaranteed, and the service life of the cutting knife can be longer, therefore, it needs to be improved. SUMMARY

[0007] The present application aims to solve the above problems, and provides a circuit board cutting device.

[0008] In order to achieve the above purpose, the present application specifically adopts the following technical scheme:

[0009] A circuit board cutting device, comprising a box body, a lifting mechanism and a driving mechanism are installed on the box body, the driving mechanism is drivingly connected with a semicircular notch rod, the number of the semicircular notch rods is two, the two semicircular notch rods are respectively provided with opposite moving telescopic mechanisms, the telescopic mechanisms are provided with cutters, the telescopic mechanisms are drivingly connected with a gear ring fixed to the box body;

[0010] The telescopic mechanism comprises a first circular rod, the two ends of the first circular rod are respectively fixed with threaded rods with opposite screw directions, the outer surfaces of the threaded rods are threadedly sleeved with moving blocks sleeved in the interiors of the semicircular notch rods, the other ends of the threaded rods are fixed with second circular rods, the left ends of the second circular rods penetrate through the semicircular notch rods and are fixedly connected with outer gears, the outer gears are in meshing connection with the gear ring, the moving blocks are hingedly connected with hinged blocks, the other ends of the hinged blocks are hingedly connected with moving racks movably sleeving the cutters, the side surfaces of the moving racks are fixed with limiting rods, the other ends of the limiting rods penetrate through the semicircular notch rods and are movably sleeved with the inner walls of the semicircular notch rods, the outer surfaces of the limiting rods are movably sleeved with rigid springs between the semicircular notch rods and the moving racks, one end of each rigid spring is fixedly connected with the semicircular notch rod, and the other end of each rigid spring is fixedly connected with the moving rack.

[0011] Further, the two sides of the cutter are fixed with second ratchets, the interiors of the moving racks are movably sleeved with movable racks, and one end of each movable rack is fixed with a pawl block in meshing connection with the second ratchet.

[0012] Further, the side surfaces of the movable racks are fixed with flexible springs, and the other ends of the flexible springs are fixedly connected with the moving racks.

[0013] Further, the outer surfaces of the first circular rods are fixedly sleeved with first ratchets, and the positions of the first ratchets correspond to those of the second ratchets.

[0014] Further, the cutter comprises a slotting cutter and a cutting cutter, and the slotting cutter and the cutting cutter are fixedly connected with the second ratchets respectively.

[0015] Further, the driving mechanism comprises a motor fixed on the side surface of the semicircular notch rod, the motor is drivingly connected with a rotating rod, and the other end of the rotating rod penetrates through the box body and is fixedly connected with the semicircular notch rod.

[0016] Further, the lifting mechanism comprises a mounting rack mounted on the cutting device, a pneumatic cylinder is fixedly mounted on the mounting rack, and the lower end of the pneumatic cylinder penetrates through the mounting rack and is fixedly connected with the box body.

[0017] Further, a jet block is fixedly mounted on the left side of the lower end of the box body, and the left end of the jet block is fixedly connected in communication with a first connecting hose in communication with a cold air machine device.

[0018] Further, the lower end of the right side of the box is fixedly provided with an air suction block, and a second connecting hose in communication with an external dust suction device is fixedly communicated with the right end of the air suction block.

[0019] The beneficial effects of the present application are as follows:

[0020] 1、The two telescopic mechanisms are driven to rotate along the gear ring by the semicircular notched rod, so that one cutter extends out of the box, and the other cutter retracts into the box, when the two cutters move to the first circular rod and the second circular rod on the telescopic mechanism, at this time, the semicircular notched rod cannot drive the cutters to retract, and the semicircular notched rod can only drive the cutters to rotate, so that the cutter extending out of the box can rotate to cut the circuit board, and then by changing the retraction state of the two cutters, the purpose of quickly replacing the cutter can be achieved.

[0021] 2、The semicircular notched rod is reversed, so that the semicircular notched rod drives the two outer gears to rotate along the gear ring through the second circular rod, so that the outer gears drive the two moving blocks to move in opposite directions through the threaded rods, so that the moving blocks pull the moving frame and the cutter to move into the box, when the cutter drives the second ratchet wheel to engage with the first ratchet wheel, so that the first ratchet wheel rotates the cutter through the second ratchet wheel, and then the second ratchet wheel drives the movable frame to move and stretch the flexible spring through the pawl block, until the cutter wear part is not in the cutting position, so that the purpose of rotating to change the cutting position of the cutter and improving the use time is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the present application;

[0023] Figure 2 is a side view of the box of the present application;

[0024] Figure 3 is a front view of the box of the present application;

[0025] Figure 4 is a schematic diagram of the semicircular notched rod of the present application;

[0026] Figure 5 is a front view of the moving frame of the present application;

[0027] Figure 6 is a front view of the moving frame of the present application; Figure 3 is a partial enlarged view of A in the present application.

[0028] Reference numerals: 1. Box body; 2. Semi-circular groove rod; 3. Moving block; 4. Threaded rod; 5. First round rod; 6. Second round rod; 7. Hinge block; 8. Moving frame; 9. Tool; 901. Cutting knife; 902. Grooving knife; 10. Limiting rod; 11. Rigid spring; 12. External gear; 13. First ratchet; 14. Second ratchet; 15. Pawl block; 16. Movable frame; 17. Flexible spring; 18. Air jet block; 19. First connecting hose; 20. Suction block; 21. Second connecting hose; 22. Motor; 23. Rotating rod; 24. Pneumatic cylinder; 25. Mounting bracket; 26. Gear ring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] Example 1, as Figures 1-6 As shown, a circuit board cutting device includes a housing 1, on which a lifting mechanism and a driving mechanism are installed. The driving mechanism is driven by a semi-circular slot rod 2. There are two semi-circular slot rods 2. The two semi-circular slot rods 2 are respectively equipped with telescopic mechanisms that move in opposite directions. A cutting tool 9 is installed on the telescopic mechanism. The telescopic mechanism is driven by a gear ring 26 fixed on the housing 1.

[0031] The telescopic mechanism includes a first round rod 5, with threaded rods 4 of opposite thread directions fixed at both ends of the first round rod 5. A moving block 3, which is fitted inside the semi-circular slot rod 2, is threaded onto the outer surface of the threaded rod 4. A second round rod 6 is fixed to the other end of the threaded rod 4. The left end of the second round rod 6 passes through the semi-circular slot rod 2 and is fixedly connected to an external gear 12. The external gear 12 meshes with a gear ring 26. A hinge block 7 is hinged to the moving block 3. A moving frame 8, which is movably fitted with a cutting tool 9, is hinged to the other end of the hinge block 7. A limit rod 10 is fixed to the side of the moving frame 8. The other end of the limit rod 10 passes through the semi-circular slot rod 2 and is movably fitted to the inner wall of the semi-circular slot rod 2. A rigid spring 11, located between the semi-circular slot rod 2 and the moving frame 8, is movably fitted onto the outer surface of the limit rod 10. One end of the rigid spring 11 is fixedly connected to the semi-circular slot rod 2, and the other end of the rigid spring 11 is fixedly connected to the moving frame 8.

[0032] Furthermore, the tool 9 includes a grooving tool 902 and a cutting tool 901, which are fixedly connected to the second ratchet 14 respectively.

[0033] When the driving mechanism drives the semicircular notched rod 2 to rotate forward, the semicircular notched rod 2 drives the two telescopic mechanisms to rotate, and the second circular rod 6 on one telescopic mechanism drives the two external gears 12 to rotate along the inner wall of the gear ring 26. At this time, the flexible spring 17 is fixed, so that the external gears 12 along the gear ring 26 rotate, and the external gears 12 drive the two moving blocks 3 to move towards each other along the outer surface of the threaded rod 4 through the second circular rod 6 and the threaded rod 4 and the first circular rod 5, so that the moving blocks 3 push the moving frame 8 and the cutting knife 901 to move out of the box 1, and at the same time, the moving frame 8 drives the limiting rod 10 to move along the inner wall of the semicircular notched rod 2 and stretch the rigid spring 11. When the moving blocks 3 move to the first circular rod 5 and are attached to the first ratchet 13, the moving frame 8 drives the cutting knife 901 to rotate and move out of the box 1. Then, because the outer surface of the first circular rod 5 is not threaded, the first circular rod 5 cannot drive the moving blocks 3 to continue to move, and because the external gears 12 always rotate along the inner surface of the gear ring 26, the threaded rod 4 will always rotate the moving blocks 3 to the first circular rod 5, so that the moving blocks 3 cannot move in the opposite direction, and the semicircular notched rod 2 can drive the cutting knife 901 to rotate and cut the circuit board outside the box 1 through the moving blocks 3, the hinged block 7 and the moving frame 8, and the other telescopic mechanism will drive the slotting knife 902 to retract into the box 1.

[0034] When the driving mechanism drives the semicircular notched rod 2 to rotate reversely, the semicircular notched rod 2 drives the two external gears 12 to rotate along the inner wall of the gear ring 26 through the second circular rod 6, and the external gears 12 rotate, so that the external gears 12 drive the second circular rod 6 and the threaded rod 4 and the first circular rod 5 to rotate. At this time, the rigid spring 11 drives the two moving blocks 3 to move from the first circular rod 5 to the threaded rod 4 through the moving frame 8 and the hinged block 7, so that the threaded rod 4 drives the two moving blocks 3 to move away from each other, and the moving blocks 3 drive the moving frame 8 and the cutting knife 901 to move into the box 1,

[0035] When the moving block 3 moves to the middle of the threaded rod 4, the threaded rod 4 continues to reverse to drive the moving block 3 to move, so that the moving frame 8 gradually changes from the stretched state of the rigid spring 11 to the compressed state of the rigid spring 11. When the moving block 3 moves to the second circular rod 6 and is attached to the inner wall of the semicircular notched rod 2, the moving frame 8 will drive the cutting knife 901 to rotate and move into the box 1. Then, since the outer surface of the second circular rod 6 is not threaded, the second circular rod 6 cannot drive the moving block 3 to continue to move. Since the external gear 12 is always rotating along the inner surface of the gear ring 26, the threaded rod 4 will always rotate the moving block 3 to the second circular rod 6, so that the moving block 3 cannot move towards each other, thereby the semicircular notched rod 2 can limit the cutting knife 901 through the moving block 3, the hinged block 7 and the moving frame 8, and the moving frame 8 on the other telescopic mechanism can drive the slotting knife 902 to slot the circuit board outside the box 1.

[0036] In summary, the device can quickly replace the cutter 9.

[0037] In the above embodiment, the cutter 9 is fixed on the second circular rod 6, and the first circular rod 5 is fixed on the semicircular notched rod 2. Figures 3-6 As shown in the above embodiment, the cutter 9 is fixed on the second circular rod 6, and the first circular rod 5 is fixed on the semicircular notched rod 2.

[0038] When the cutting part of the tool 9 wears, the semi-circular groove rod 2 is reversed, causing it to rotate along the inner wall of the gear ring 26 via the second round rod 6. Since the gear ring 26 is fixed, the external gears 12 rotate, causing them to move in opposite directions along the outer surface of the threaded rod 4 via the second round rod 6 and the threaded rod 4. This causes the two moving blocks 3 to move in opposite directions along the outer surface of the threaded rod 4, pulling the moving frame 8 and the tool 9 into the housing 1. When the moving block 3 reaches the second round rod 6 and is in contact with the inner wall of the semi-circular groove rod 2, the moving frame 8, through the tool 9, will engage the second ratchet 14 with the first ratchet 13. Since the rotation direction of the first ratchet 13 and the second ratchet 14 is not blocked by the pawl block 15, the first round rod 5 can... The first ratchet 13 and the second ratchet 14 rotate the cutter 9, which in turn causes the second ratchet 14 to push the movable frame 16 to move and stretch the flexible spring 17 through the pawl block 15 until the worn part of the cutter 9 is no longer in the cutting position. Then, the cutter 9 is reset by rotating the semi-circular groove rod 2 in the forward direction, which causes the second ratchet 14 to disengage from the first ratchet 13. As the semi-circular groove rod 2 continues to rotate in the forward direction, it cuts the circuit board with the cutter 9 through the movable block 3 and the hinge block 7 and the movable frame 8. At this time, the rotation direction of the second ratchet 14 caused by the cutter 9 rubbing against the circuit board is blocked by the pawl block 15, which fixes the cutter 9 through the second ratchet 14. As a result, the cutter 9 will not rotate on its own, but can only be rotated by the semi-circular groove rod 2 as a whole, thereby achieving the purpose of changing the cutting position of the cutter 9 by rotation and improving the service life.

[0039] Example 3, as Figure 2 As shown, based on the above embodiment, the driving mechanism includes a motor 22 fixed to the side of the semi-circular slot rod 2, a rotating rod 23 connected to the motor 22, and the other end of the rotating rod 23 passing through the housing 1 and fixedly connected to the semi-circular slot rod 2.

[0040] By starting the motor 22, the rotating rod 23 drives the two semi-circular slot rods 2 to rotate, which in turn allows the semi-circular slot rods 2 to drive the cutting tool 9 to cut the circuit board through the telescopic mechanism and gear ring 26.

[0041] Example 4, as Figure 1 As shown, based on the above embodiment, the lifting mechanism includes a mounting frame 25 installed on the cutting device, and a pneumatic cylinder 24 is fixedly installed on the mounting frame 25. The lower end of the pneumatic cylinder 24 passes through the mounting frame 25 and is fixedly connected to the housing 1.

[0042] By activating the pneumatic cylinder 24, the entire housing 1 moves downward until the bottom of the housing 1 contacts the top of the circuit board on the cutting device and then stops. Then, the motor 22 is activated, causing the cutter 9 to rotate and cut the circuit board pressed by the housing 1. This allows the housing 1 to press the cut circuit board to prevent warping.

[0043] Example 5, such as Figure 3 As shown, based on the above embodiment, an air jet block 18 is fixedly installed on the left side of the lower end of the housing 1, and the left end of the air jet block 18 is fixedly connected to a first connecting hose 19 that is connected to the air cooler equipment.

[0044] Through the design of the first connecting hose 19 and the jet block 18, the external air cooling equipment can introduce cold air into the jet block 18 through the first connecting hose 19, thereby enabling the jet block 18 to cool the area where the cutter 9 cuts the circuit board inside the housing 1, avoiding the high temperature caused by the rotation of the cutter 9 rubbing against the circuit board and damaging the circuit board.

[0045] Example 6, as Figure 3 As shown, based on the above embodiment, an air suction block 20 is fixedly installed at the lower right end of the housing 1, and a second connecting hose 21 connected to an external vacuum cleaner is fixedly connected to the right end of the air suction block 20.

[0046] By designing the suction block 20 and the second connecting hose 21, the external vacuum cleaner can extract dust from the inside of the housing 1 through the suction block 20 and the second connecting hose 21, thereby collecting the debris from the circuit board cut by the blade 9 into the external vacuum cleaner, reducing the cleaning work for the operator.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A circuit board cutting apparatus comprising a housing (1), characterized by, The box (1) is provided with a lifting mechanism and a driving mechanism, the driving mechanism is drivingly connected with a semicircular notched rod (2), the number of the semicircular notched rods (2) is two, the two semicircular notched rods (2) are respectively provided with opposite moving telescopic mechanisms, the telescopic mechanisms are provided with cutters (9), the telescopic mechanisms are drivingly connected with gear rings (26) fixed to the box (1); The telescopic mechanism comprises a first circular rod (5), the two ends of the first circular rod (5) are respectively fixed with threaded rods (4) with opposite screw directions, the outer surfaces of the threaded rods (4) are threadedly sleeved with moving blocks (3) sleeved in the semicircular notched rods (2), the other ends of the threaded rods (4) are fixed with second circular rods (6), the left ends of the second circular rods (6) penetrate through the semicircular notched rods (2) and are fixedly connected with outer gears (12), the outer gears (12) are in meshing connection with the gear rings (26), the moving blocks (3) are hingedly connected with hinge blocks (7), the other ends of the hinge blocks (7) are hingedly connected with moving racks (8) movably sleeving the cutters (9), the side surfaces of the moving racks (8) are fixed with limiting rods (10), the other ends of the limiting rods (10) penetrate through the semicircular notched rods (2) and are movably sleeved with the inner walls of the semicircular notched rods (2), the outer surfaces of the limiting rods (10) are movably sleeved with rigid springs (11) between the semicircular notched rods (2) and the moving racks (8), one end of each rigid spring (11) is fixedly connected with the semicircular notched rod (2), the other end of each rigid spring (11) is fixedly connected with the moving rack (8).

2. The circuit board cutting apparatus according to claim 1, wherein The two sides of each cutter (9) are fixedly connected with second ratchets (14), the interiors of the moving racks (8) are movably sleeved with movable racks (16), one end of each movable rack (16) is fixedly connected with a pawl block (15) in meshing connection with the second ratchet (14).

3. The circuit board cutting apparatus according to claim 2, wherein The side surfaces of the movable racks (16) are fixedly connected with flexible springs (17), the other ends of the flexible springs (17) are fixedly connected with the moving racks (8).

4. The circuit board cutting apparatus according to claim 2, wherein The outer surfaces of the first circular rods (5) are fixedly sleeved with first ratchets (13), the positions of the first ratchets (13) correspond to those of the second ratchets (14).

5. The circuit board cutting apparatus according to claim 2, wherein Each cutter (9) comprises a slotting cutter (902) and a cutting cutter (901), the slotting cutter (902) and the cutting cutter (901) are respectively fixedly connected with the second ratchet (14).

6. The circuit board cutting apparatus according to claim 1, wherein The driving mechanism comprises a motor (22) fixed to the side surfaces of the semicircular notched rods (2), the motor (22) is drivingly connected with a rotating rod (23), the other end of the rotating rod (23) penetrates through the box (1) and is fixedly connected with the semicircular notched rod (2).

7. The circuit board cutting apparatus according to claim 1, wherein The lifting mechanism comprises a mounting rack (25) mounted on the cutting device, the mounting rack (25) is fixedly provided with a pneumatic cylinder (24), the lower end of the pneumatic cylinder (24) penetrates through the mounting rack (25) and is fixedly connected with the box (1).

8. The circuit board cutting apparatus according to claim 1, wherein The left side of the lower end of the box (1) is fixedly provided with a jet block (18), the left end of the jet block (18) is fixedly connected with a first connecting hose (19) in communication with a cold air machine device.

9. The circuit board cutting apparatus according to claim 1, wherein The lower end of the right side of the box (1) is fixedly provided with an air suction block (20), and the right end of the air suction block (20) is fixedly communicated with a second connecting hose (21) communicated with an external dust suction equipment.

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