Circuit board cutting device

Abstract

The invention discloses a circuit board cutting device, and relates to the technical field of circuit board cutting equipment. The device comprises a box body, a lifting mechanism and a driving mechanism are installed on the box body, the driving mechanism is in transmission connection with semicircular notch rods, the number of the semicircular notch rods is two, and telescopic mechanisms moving oppositely are installed on the two semicircular notch rods respectively. The two telescopic mechanisms are driven by the semicircular notch rods to rotate along the flexible springs, so that one cutter extends out of the box body, the other cutter retracts into the box body, and when the two cutters move to the first round rods and the second round rods on the telescopic mechanisms correspondingly, the two telescopic mechanisms are driven to rotate along the flexible springs. At the moment, the semicircular notch rod cannot drive the cutters to contract and move through the telescopic mechanism, the semicircular notch rod can only drive the cutters to rotate through the telescopic mechanism, and then the cutters extending out of the box body can rotate to cut the circuit board; therefore, the purpose of quickly replacing the cutter can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board cutting equipment, and in particular to a circuit board cutting device. Background Art

[0002] The circuit board can be called a printed circuit board or a printed circuit board. It is an important electronic component and a support for electronic components. The circuit board miniaturizes and visualizes the circuit, and plays an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances.

[0003] In a Chinese patent (application number CN202020182191.9), a circuit board cutting device is disclosed, which relates to the field of circuit board processing technology, specifically including a workbench and a cutting table, wherein the cutting table is fixedly connected to the upper surface of the workbench, a telescopic rod is provided at the top of the inner wall of the cutting table, a connecting plate is fixedly connected to the bottom of the telescopic rod, a cutter is provided at the bottom of the connecting plate, a groove is provided at the position of the workbench corresponding to the cutter, and a fixed plate is fixedly connected to both sides of the connecting plate near the bottom, a perforation is provided on the upper surface of the fixed plate, and a round rod is provided at the position corresponding to the perforation on the upper surface of the fixed plate. By providing a connecting plate, a fixing plate, a round rod, a pressure plate, a spring and a card plate, the effect of pressing the two ends of the circuit board when cutting the circuit board is achieved, and the problem that there is no corresponding pressing device for pressing and cutting when cutting the circuit board is solved, so when cutting the circuit board, the two ends of the cut circuit board will be tilted.

[0004] This patent and the prior art have the following technical problems in actual use: 1. During the production and processing of circuit boards, cutting and slotting are often required, but the device can only cut the circuit boards. When the circuit boards need to be slotted, the cutting knife needs to be disassembled laboriously and the slotting knife needs to be replaced. Such a replacement process is not only time-consuming but also troublesome, so it needs to be improved.

[0005] 2. At the same time, after long-term use, the circuit board cutting knife of the device will always be partially worn due to external reasons, while other parts of the cutting knife are intact. In order to ensure the cutting quality of the 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, it can not only ensure the quality, but also make the cutting knife last longer, so it needs to be improved. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problem and provide a circuit board cutting device.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A circuit board cutting device comprises a box body, a lifting mechanism and a driving mechanism are installed on the box body, the driving mechanism is connected to a semicircular notch rod in transmission, the number of the semicircular notch rods is two, the two semicircular notch rods are respectively installed with telescopic mechanisms that move in opposite directions, the telescopic mechanisms are installed with a cutter, and the telescopic mechanisms are connected to a flexible spring fixed on the box body in transmission; The cam is connected with a second end of the first end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end of the second end

[0008] Furthermore, second ratchets are fixed on both sides of the tool, a movable frame is movably sleeved inside the movable frame, and a ratchet block meshing with the second ratchet is fixed at one end of the movable frame.

[0009] Furthermore, a flexible spring is fixed to the side of the movable frame, and the other end of the flexible spring is fixedly connected to the movable frame.

[0010] Furthermore, a first ratchet is fixedly sleeved on the outer surface of the first round rod, and the positions of the first ratchet correspond to those of the second ratchet.

[0011] Furthermore, the tool comprises a slotting knife and a cutting knife, and the slotting knife and the cutting knife are respectively fixedly connected to the second ratchet.

[0012] Furthermore, the driving mechanism comprises a motor fixed to the side of the semicircular notch rod, the motor is transmission-connected with a rotating rod, and the other end of the rotating rod penetrates the box and is fixedly connected to the semicircular notch rod.

[0013] Furthermore, the lifting mechanism includes a mounting frame installed on the cutting device, a pneumatic cylinder is fixedly mounted on the mounting frame, and the lower end of the pneumatic cylinder passes through the mounting frame and is fixedly connected to the box body.

[0014] Furthermore, an injection block is fixedly installed on the left side of the lower end of the box body, and a first connecting hose connected to the air cooler device is fixedly connected to the left end of the injection block.

[0015] Furthermore, an air suction block is fixedly installed at the lower end of the right side of the box body, and the right end of the air suction block is fixedly connected to a second connecting hose connected to an external dust suction device.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention drives two telescopic mechanisms to rotate along the flexible spring through the semicircular notch rod, so that one tool extends out of the box and the other tool retracts into the box. When the two tools move to the first round rod and the second round rod on the telescopic mechanism respectively, the semicircular notch rod cannot drive the tools to retract and move through the telescopic mechanism. The semicircular notch rod can only drive the tools to rotate through the telescopic mechanism, so that the tool extended outside the box can be rotated to cut the circuit board. Then, by exchanging the retracted state of the two tools, the purpose of quickly replacing the tools can be achieved.

[0017] 2. The present invention reverses the semicircular notch rod so that the semicircular notch rod drives the two external gears to rotate along the flexible spring through the second round rod, and then the external gear drives the two moving blocks to move oppositely through the threaded rod, so that the moving block pulls the moving frame and the tool to move into the box body. When the tool drives the second ratchet to engage with the first ratchet, the first ratchet rotates the tool through the second ratchet, and then the second ratchet pushes the movable frame to move and stretch the flexible spring through the pawl block until the worn part of the tool is no longer in the cutting position and stops, thereby achieving the purpose of rotating to change the cutting position of the tool and increasing the use time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention; Figure 2 It is a side cross-sectional schematic diagram of the box body of the present invention; Figure 3 It is a front cross-sectional schematic diagram of the box body of the present invention; Figure 4 is a schematic diagram of a semicircular notch rod of the present invention; Figure 5 It is a front cross-sectional schematic diagram of the mobile frame of the present invention; Figure 6 The present invention Figure 3 A partial enlarged schematic diagram in the middle.

[0019] Figure numerals: 1, box body; 2, semicircular notch rod; 3, moving block; 4, threaded rod; 5, first round rod; 6, second round rod; 7, hinged block; 8, moving frame; 9, tool; 901, cutting knife; 902, slotting knife; 10, limit rod; 11, rigid spring; 12, external gear; 13, first ratchet; 14, second ratchet; 15, pawl block; 16, movable frame; 17, flexible spring; 18, jet block; 19, first connecting hose; 20, suction block; 21, second connecting hose; 22, motor; 23, rotating rod; 24, pneumatic cylinder; 25, mounting frame. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Embodiment 1, as Figure 1-Figure 6 As shown, a circuit board cutting device comprises a box body 1, a lifting mechanism and a driving mechanism are installed on the box body 1, the driving mechanism is connected to a semicircular notch rod 2 in a transmission manner, the number of the semicircular notch rods 2 is two, and telescopic mechanisms that move in opposite directions are respectively installed on the two semicircular notch rods 2, a tool 9 is installed on the telescopic mechanism, and the telescopic mechanism is connected to a flexible spring 17 fixed on the box body 1 in a transmission manner; Among them, the telescopic mechanism includes a first round rod 5, at both ends of the first round rod 5 are respectively fixed with threaded rods 4 with opposite thread directions, the outer surface of the threaded rod 4 is threadedly sleeved with a moving block 3 sleeved inside the semicircular notch rod 2, the other end of the threaded rod 4 is fixed with a second round rod 6, the left end of the second round rod 6 penetrates the semicircular notch rod 2 and is fixedly connected to an external gear 12, the external gear 12 is meshed and connected with a flexible spring 17, an articulated block 7 is hinged on the moving block 3, the other end of the articulated block 7 is hinged with a moving frame 8 for movably sleeved with a tool 9, a limiting rod 10 is fixed on the side of the moving frame 8, the other end of the limiting rod 10 penetrates the semicircular notch rod 2 and is movably sleeved with the inner wall of the semicircular notch rod 2, the outer surface of the limiting rod 10 is movably sleeved with a rigid spring 11 located between the semicircular notch rod 2 and the moving frame 8, one end of the rigid spring 11 is fixedly connected to the semicircular notch rod 2, and the other end of the rigid spring 11 is fixedly connected to the moving frame 8; Furthermore, the tool 9 includes a slotting knife 902 and a cutting knife 901 , and the slotting knife 902 and the cutting knife 901 are fixedly connected to the second ratchet 14 respectively.

[0022] When the driving mechanism drives the semicircular notch rod 2 to rotate forward, the semicircular notch rod 2 drives the two telescopic mechanisms to rotate, and then the second round rod 6 on one telescopic mechanism drives the two external gears 12 to rotate along the inner wall of the flexible spring 17. At this time, since the flexible spring 17 is fixed, the external gear 12 along the flexible spring 17 rotates on itself, and then the external gear 12 drives the two moving blocks 3 to move toward each other along the outer surface of the threaded rod 4 through the second round rod 6 and the threaded rod 4 and the first round rod 5, so that the moving block 3 pushes the moving frame 8 and the cutting knife 901 to move outside the box body 1. At the same time, the moving frame 8 will drive the limiting rod 10 to move along the inner wall of the semicircular notch rod 2 and stretch the rigid spring 11. When the moving block When the first round rod 3 moves to the first round rod 5 and fits with the first ratchet 13, the moving frame 8 will drive the cutting knife 901 to rotate and move to the outside of the box body 1. Then, since the outer surface of the first round rod 5 has no thread, the first round rod 5 cannot drive the moving block 3 to continue to move. At the same time, since the outer gear 12 rotates along the inner surface of the flexible spring 17, the threaded rod 4 will continue to rotate and move the moving block 3 to the first round rod 5, so that the moving block 3 cannot move in the opposite direction. Then, the semicircular notch rod 2 can drive the cutting knife 901 to rotate and cut the circuit board outside the box body 1 through the moving block 3 and the hinged block 7 and the moving frame 8, and at the same time, the moving frame 8 on the other telescopic mechanism will drive the slotting knife 902 to retract into the box body 1. When the driving mechanism drives the semicircular notch rod 2 to reverse, the semicircular notch rod 2 drives the two external gears 12 to rotate along the inner wall of the flexible spring 17 through the second round rod 6, and then the external gear 12 along the flexible spring 17 rotates, so that the external gear 12 drives the second round rod 6 and the threaded rod 4 to rotate with the first round rod 5. At this time, the rigid spring 11 will pull the two moving blocks 3 from the first round rod 5 to the threaded rod 4 through the moving frame 8 and the hinge block 7, so that the threaded rod 4 drives the two moving blocks 3 to move in opposite directions, and then the moving block 3 pulls the moving frame 8 and the cutting knife 901 to move into the box body 1. When the moving block 3 moves to the middle of the threaded rod 4, as the threaded rod 4 continues to reverse and drives the moving block 3 to move, the moving frame 8 gradually changes from the tensile rigid spring 11 state to the compressed rigid spring 11 state. When the moving block 3 moves to the second round rod 6 and fits with the inner wall of the semicircular notch rod 2, the moving frame 8 will drive the cutting knife 901 to rotate and move to the inside of the box body 1. Then, since there is no thread on the outer surface of the second round rod 6, the second round rod 6 cannot drive the moving block 3 to continue moving. Since the external gear 12 rotates along the inner surface of the flexible spring 17 all the time, the threaded rod 4 will continue to rotate the moving block 3 to the second round rod 6, so that the moving block 3 cannot move toward each other. Then, the semicircular notch rod 2 can limit the cutting knife 901 through the moving block 3 and the hinged block 7 and the moving frame 8. At the same time, the moving frame 8 on the other telescopic mechanism can drive the slotting knife 902 to slot the circuit board outside the box body 1. In summary, the device can achieve the purpose of quickly replacing the tool 9.

[0023] Embodiment 2, as Figure 3-Figure 6 As shown, on the basis of the above embodiment, a second ratchet 14 is fixed on both sides of the tool 9, a movable frame 16 is movably sleeved inside the movable frame 8, a pawl block 15 meshing with the second ratchet 14 is fixed at one end of the movable frame 16, a flexible spring 17 is fixed to the side of the movable frame 16, the other end of the flexible spring 17 is fixedly connected to the movable frame 8, and a first ratchet 13 is fixedly sleeved on the outer surface of the first round rod 5, and the positions of the first ratchet 13 and the second ratchet 14 correspond.

[0024] When the cutting part on the tool 9 is worn, the semicircular notch rod 2 is reversed, so that the semicircular notch rod 2 drives the two external gears 12 to rotate along the inner wall of the flexible spring 17 through the second round rod 6. At this time, since the flexible spring 17 is fixed, the external gear 12 along the flexible spring 17 rotates, and then the external gear 12 drives the two moving blocks 3 to move oppositely along the outer surface of the threaded rod 4 through the second round rod 6 and the threaded rod 4 and the first round rod 5, so that the moving block 3 pulls the moving frame 8 and the tool 9 to move into the box body 1. When the moving block 3 moves to the second round rod 6 and fits with the inner wall of the semicircular notch rod 2, the moving frame 8 will drive the second ratchet 14 to engage with the first ratchet 13 through the tool 9. Then, since the rotation direction of the second ratchet 14 driven by the first ratchet 13 is not blocked by the pawl block 15, the first round rod The tool 9 can be rotated by the first ratchet 13 and the second ratchet 14, so that the second ratchet 14 pushes the movable frame 16 to move and stretch the flexible spring 17 through the ratchet block 15 until the worn part of the tool 9 stops when it is not in the cutting position, and then the tool 9 is reset by the forward rotation of the semicircular notch rod 2, so that the second ratchet 14 is separated from the first ratchet 13. As the semicircular notch rod 2 continues to rotate forward, the semicircular notch rod 2 is used to cut the circuit board with the tool 9 through the moving block 3 and the hinge block 7 and the moving frame 8. At this time, the rotation direction of the second ratchet 14 driven by the tool 9 after rubbing the circuit board is blocked by the ratchet block 15, so that the ratchet block 15 fixes the tool 9 through the second ratchet 14, so that the tool 9 will not rotate by itself, but can only be driven to rotate by the semicircular notch rod 2 as a whole, thereby achieving the purpose of rotating to change the cutting position of the tool 9 and improving the use time.

[0025] Embodiment three, as Figure 2 As shown, based on the above embodiment, the driving mechanism includes a motor 22 fixed to the side of the semicircular notch rod 2, and a rotating rod 23 is transmission-connected to the motor 22. The other end of the rotating rod 23 passes through the box body 1 and is fixedly connected to the semicircular notch rod 2.

[0026] By starting the motor 22, the rotating rod 23 drives the two semicircular notch rods 2 to rotate, so that the semicircular notch rods 2 can drive the cutter 9 to cut the circuit board through the telescopic mechanism and the flexible spring 17.

[0027] Embodiment 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 mounted 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 box body 1.

[0028] By starting the pneumatic cylinder 24, the box body 1 moves downward as a whole until the bottom of the box body 1 contacts the top of the circuit board on the cutting device and stops. Then the motor 22 is started to rotate the cutter 9 to cut the circuit board squeezed by the box body 1, so that the box body 1 can squeeze the cut circuit board to prevent warping.

[0029] Embodiment 5, as Figure 3 As shown, based on the above embodiment, an air injection block 18 is fixedly installed on the left side of the lower end of the box body 1, and the left end of the air injection block 18 is fixedly connected to a first connecting hose 19 connected to the air cooler device.

[0030] Through the design of the first connecting hose 19 and the jet block 18, the external air cooler equipment can introduce cold air into the jet block 18 through the first connecting hose 19, so that the jet block 18 can cool the position where the tool 9 inside the box 1 cuts the circuit board, avoiding high temperature caused by the rotation of the tool 9 and friction with the circuit board, thereby damaging the circuit board.

[0031] Embodiment six, as Figure 3 As shown, based on the above embodiment, an air suction block 20 is fixedly installed at the lower end of the right side of the box body 1, and the right end of the air suction block 20 is fixedly connected to a second connecting hose 21 connected to an external dust collection device.

[0032] Through the design of the suction block 20 and the second connecting hose 21, the external vacuum device can extract the dust inside the box 1 through the suction block 20 and the second connecting hose 21, so that the debris from the cutter 9 cutting the circuit board is collected inside the external vacuum device, reducing the cleaning work of the operator.

[0033] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A circuit board cutting device, comprising a box (1), characterized in that: The box body (1) is provided with a lifting mechanism and a driving mechanism, the driving mechanism being in driving connection with a semicircular notch rod (2), the number of the semicircular notch rods (2) being two, and telescopic mechanisms that move in opposite directions being respectively provided on the two semicircular notch rods (2), the telescopic mechanisms being provided with a tool (9), and the telescopic mechanisms being in driving connection with a flexible spring (17) fixed to the box body (1); The telescopic mechanism comprises a first round rod (5), threaded rods (4) with opposite thread directions are respectively fixed at both ends of the first round rod (5), a moving block (3) which is sleeved inside a semicircular notch rod (2) is threadedly sleeved on the outer surface of the threaded rod (4), a second round rod (6) is fixed at the other end of the threaded rod (4), the left end of the second round rod (6) passes through the semicircular notch rod (2) and is fixedly connected to an external gear (12), the external gear (12) is meshedly connected to a flexible spring (17), a hinge block (7) is hinged on the moving block (3), and the hinge block (7) is hinged on the movable block (3). The other end of the connecting block (7) is hingedly connected to a movable frame (8) for movably sleeved with a tool (9); a limiting rod (10) is fixed to the side of the movable frame (8); the other end of the limiting rod (10) penetrates the semicircular notch rod (2) and is movably sleeved with the inner wall of the semicircular notch rod (2); the outer surface of the limiting rod (10) is movably sleeved with a rigid spring (11) located between the semicircular notch rod (2) and the movable frame (8); one end of the rigid spring (11) is fixedly connected to the semicircular notch rod (2); and the other end of the rigid spring (11) is fixedly connected to the movable frame (8).

2. A circuit board cutting device according to claim 1, characterized in that: Second ratchets (14) are fixed on both sides of the cutter (9), a movable frame (16) is movably sleeved inside the movable frame (8), and a ratchet block (15) meshing with the second ratchet (14) is fixed at one end of the movable frame (16).

3. A circuit board cutting device according to claim 2, characterized in that: A flexible spring (17) is fixed to the side of the movable frame (16), and the other end of the flexible spring (17) is fixedly connected to the movable frame (8).

4. A circuit board cutting device according to claim 2, characterized in that: A first ratchet (13) is fixedly sleeved on the outer surface of the first round rod (5), and the positions of the first ratchet (13) and the second ratchet (14) correspond to each other.

5. A circuit board cutting device according to claim 2, characterized in that: The cutting tool (9) comprises a slotting knife (902) and a cutting knife (901), and the slotting knife (902) and the cutting knife (901) are respectively fixedly connected to the second ratchet (14).

6. A circuit board cutting device according to claim 1, characterized in that: The driving mechanism comprises a motor (22) fixed to a side surface of the semicircular notch rod (2), the motor (22) being drivingly connected to a rotating rod (23), the other end of the rotating rod (23) passing through the box body (1) and being fixedly connected to the semicircular notch rod (2).

7. A circuit board cutting device according to claim 1, characterized in that: The lifting mechanism comprises a mounting frame (25) mounted on the cutting device, a pneumatic cylinder (24) being fixedly mounted on the mounting frame (25), and a lower end of the pneumatic cylinder (24) passing through the mounting frame (25) and being fixedly connected to the box body (1).

8. A circuit board cutting device according to claim 1, characterized in that: An air jet block (18) is fixedly mounted on the left side of the lower end of the box body (1), and a first connecting hose (19) connected to a cooling air machine device is fixedly connected to the left end of the air jet block (18).

9. A circuit board cutting device according to claim 1, characterized in that: An air suction block (20) is fixedly mounted on the lower end of the right side of the box body (1), and a second connecting hose (21) connected to an external dust suction device is fixedly connected to the right end of the air suction block (20).

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