A cutting machine for circuit boards

Abstract

The present invention relates to the technical field of circuit boards, and discloses a cutting machine for circuit boards, comprising a sliding plate slidably arranged on a support plate and a driving member mounted on the support plate for driving the sliding plate to slide back and forth, wherein a placement table is fixedly mounted on the sliding plate, and further comprising: a clamping mechanism mounted on the sliding plate and located above the placement table; a trigger plate slidably plugged into the clamping mechanism for triggering the clamping mechanism to press downward; and a first baffle fixed on the support plate and abutting against one end of the trigger plate. The driving member in the present invention can drive the sliding plate and the placement table to slide so as to realize the conveyance of the circuit board, and can also drive the trigger plate to slide to trigger the clamping mechanism to clamp the circuit board, thereby realizing automatic fixation of the circuit board, thereby eliminating the need for multiple cylinders added in the prior art for fixing the circuit board, thereby reducing the manufacturing cost of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit boards, and in particular to a cutting machine for circuit boards. Background Art

[0002] Circuit boards are divided into flexible circuit boards (FPC), rigid circuit boards (PCB), and flexible and rigid combined circuit boards (FPCB) according to their characteristics. The application of PCB boards in circuit boards is undoubtedly the most extensive. During the production process, PCB circuit boards are large-area wholes and need to be divided into small circuit boards of specific sizes through a cutting process.

[0003] For example, the Chinese invention patent with application number CN202010235659.0, publication (announcement) number CN111405765B, and name “A circuit board depaneling device” discloses a depaneling table, a moving assembly, a cutting assembly, and a blanking assembly. By placing the circuit board on the moving plate, the electric push rod drives the push plate and the sliding frame to move synchronously. After the sliding frame moves to the appropriate position, the electric push rod stops working, and the two clamping cylinders work to drive the pressure plate to move downward until it contacts and clamps the top of the circuit board to prevent the circuit board from shaking when the cutting assembly cuts the circuit board. Then the first screw slide works to drive the connecting plate and the moving plate to move synchronously. When the moving plate drives the circuit board to move below the cutting assembly, the cutting piece works to cut the circuit board. After that, the first screw slide continues to work to drive the moving plate to move to the blanking assembly. The two clamping cylinders work to drive the pressure plate to move upward to stop clamping the circuit board. Finally, the third drive motor works to make the blanking piece suck the cut circuit board on the moving plate to the designated position for storage.

[0004] The circuit board dividing device provided by the above invention patent can automatically cut large circuit boards into small pieces through mechanical equipment, greatly improving the cutting efficiency of traditional manual cutting, but its disadvantage is that: since the circuit board needs to be fixed to prevent the circuit board from shaking when cutting, although the above invention realizes the extrusion and fixation of the circuit board by setting multiple cylinders to drive the pressure plate to move downward, and replaces manual fixation with electric drive, it correspondingly adds the setting of multiple cylinders, which will undoubtedly increase the manufacturing cost of the equipment and lead to poor economic efficiency of equipment manufacturing. Summary of the Invention

[0005] The object of the present invention is to provide a cutting machine for circuit boards to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a cutting machine for circuit boards, comprising a sliding plate slidably mounted on a support plate and a driving member mounted on the support plate for driving the sliding plate to slide back and forth, wherein a placement table is fixedly mounted on the sliding plate, and further comprising:

[0007] a pressing mechanism, which is mounted on the sliding plate and located above the placement table;

[0008] A trigger plate, which is slidably plugged into the clamping mechanism and is used to trigger the clamping mechanism to press downward;

[0009] a first baffle, which is fixed to the support plate and abuts against one end of the trigger plate;

[0010] The sliding plate drives the trigger plate to abut against the first baffle plate during the sliding process toward the first baffle plate, driving the trigger plate to slide so that the pressing mechanism presses the circuit board.

[0011] The above-mentioned circuit board cutting machine, the clamping mechanism includes a plurality of fixed columns fixed on the sliding plate and a plurality of pressure plates slidably plugged into the plurality of fixed columns one by one. The plurality of pressure plates are located above the placement table, the trigger plate is slidably plugged between the fixed columns and the pressure plate, and the trigger plate is in abutment with the pressure plate.

[0012] In the above-mentioned circuit board cutting machine, the multiple fixed columns are divided into two groups along the sliding direction perpendicular to the sliding plate, the number of fixed columns in each group is at least two, and the number of trigger plates is two and they are slidably plugged into the two groups of fixed columns in a one-to-one correspondence.

[0013] The above-mentioned circuit board cutting machine, the trigger plate includes a plate body and two guide plates fixedly arranged on the front and rear sides of the plate body in a one-to-one manner, the bottom surface of the plate body abuts and cooperates with the top surface of the pressure plate, the bottom surface of the plate body includes a first plane, a first curved surface, and a second plane arranged in sequence, the height of the second plane is greater than the height of the first plane, and when the first plane abuts against the top surface of the pressure plate, the circuit board is pressed between the pressure plate and the placement table.

[0014] The above-mentioned cutting machine for circuit boards, the bottom surface of the board body also includes a second curved surface and a third plane arranged in sequence, the second curved surface is connected to the second plane, the height of the third plane is greater than the height of the second plane, and the vertical distance between the third plane and the pressure plate is greater than the vertical distance of the pressure plate slidingly inserted in the fixed column so that the pressure plate can be taken out of the fixed column when it is located below the third plane.

[0015] The above-mentioned circuit board cutting machine has a sliding cavity provided in the fixed column, and an opening connected to the sliding cavity is provided on the fixed column so that the sliding cavity is divided into an upper sliding cavity and a lower sliding cavity. One end of the pressure plate is slidably inserted in the lower sliding cavity, and the other end extends to the outside of the fixed column through the opening. The vertical length of the opening is greater than the maximum vertical length of the pressure plate.

[0016] In the above-mentioned cutting machine for circuit boards, two guide grooves are provided in the upper sliding cavity and are slidably plugged into the two guide plates in a one-to-one correspondence.

[0017] In the above-mentioned cutting machine for circuit boards, a compression spring is placed in the lower sliding cavity, the top of the compression spring abuts against the end face of the pressure plate, and the bottom of the compression spring abuts against the bottom of the lower sliding cavity. When the pressure plate is located below the third plane, the elastic force of the compression spring drives the pressure plate to move up and disengage from the lower sliding cavity.

[0018] In the above-mentioned cutting machine for circuit boards, an elastic pad is fixedly provided on one end surface of the pressing plate, and the bottom of the elastic pad abuts against the top of the circuit board.

[0019] The above-mentioned circuit board cutting machine has multiple through holes on the multiple fixing columns, each of which has a screw inserted therein, and the sliding plate has multiple screw holes screwed to the multiple screws. The number of the screw holes is greater than the number of the screws so that the distance between the multiple fixing columns can be adjusted.

[0020] Beneficial Effects: In the above technical solution, the present invention provides a circuit board cutting machine, wherein a trigger plate is slidably arranged on a clamping mechanism so that the sliding of the trigger plate can trigger the clamping mechanism to clamp and fix the circuit board on the placement table, and the trigger plate is plugged into the clamping mechanism, and the clamping mechanism is mounted on the sliding plate. When a driving member drives the sliding plate to slide, the trigger plate can be driven to move. During the process of the trigger plate moving toward the first baffle, the end of the trigger plate gradually abuts against the first baffle and, under the blocking action of the first baffle, drives the trigger plate to slide so that the trigger plate triggers the clamping mechanism to press down, thereby clamping and fixing the circuit board. At the same time, when the driving member drives the sliding plate to slide, the placement table can be moved to achieve the conveyance of the circuit board. As can be seen, the driving member in the present invention can drive the sliding plate and the placement table to slide to achieve the conveyance of the circuit board, and can also drive the trigger plate to slide to trigger the clamping mechanism to clamp the circuit board, thereby achieving automatic fixation of the circuit board. This eliminates the need for multiple cylinders for fixing the circuit board in the prior art, reduces the manufacturing cost of the equipment, improves the economic efficiency of the equipment manufacturing, and effectively solves the shortcomings of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic structural diagram of a circuit board cutting machine provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure between the pressing mechanism, the trigger plate, the placement table, and the sliding plate provided in an embodiment of the present invention;

[0024] Figure 3 A front view of a trigger plate provided in an embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a fixing column provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the disassembly of the pressing mechanism, trigger plate, placement table, and sliding plate provided in an embodiment of the present invention;

[0027] Figure 6 A partial cross-sectional schematic diagram of a cutting machine when the pressing plate provided in an embodiment of the present invention is located below the first plane;

[0028] Figure 7 A partial cross-sectional schematic diagram of the cutting machine when the pressing plate provided in an embodiment of the present invention is located below the second plane;

[0029] Figure 8 A partial cross-sectional schematic diagram of the cutting machine when the pressing plate provided in an embodiment of the present invention is located below the third plane.

[0030] Description of reference numerals:

[0031] 1. Support plate; 101. Inverted T-shaped slide groove; 2. Sliding plate; 201. Inverted T-shaped sliding plate; 202. Internal threaded hole; 3. Screw; 4. Placement table; 401. Avoidance groove; 5. Trigger plate; 501. Plate body; 502. Guide plate; 503. First plane; 504. First arc surface; 505. Second plane; 506. Second arc surface; 507. Third plane; 6. Fixed column; 601. Lower sliding cavity; 602. Upper sliding cavity; 603. Guide groove; 604. Opening; 605. Through hole; 7. Press plate; 701. Elastic pad; 8. First baffle; 9. Second baffle; 901. Cleaning plate; 10. Bracket; 11. Cutting knife; 12. Cylinder; 13. Slide rod; 14. Servo motor; 15. Storage box; 1501. T-shaped slide plate; 16. Compression spring; 17. Circuit board. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-8 As shown, an embodiment of the present invention provides a circuit board cutting machine, comprising a sliding plate 2 slidably arranged on a support plate 1 and a driving member mounted on the support plate 1 for driving the sliding plate 2 to slide back and forth, a placing table 4 fixedly mounted on the sliding plate 2, and further comprising:

[0034] A pressing mechanism, which is mounted on the sliding plate 2 and located above the placement table 4;

[0035] A trigger plate 5 is slidably connected to the pressing mechanism and is used to trigger the pressing mechanism to press downward;

[0036] A first baffle 8 is fixed on the support plate 1 and abuts against one end of the trigger plate 5;

[0037] During the sliding process of the sliding plate 2 toward the first baffle 8 , the trigger plate 5 is driven to abut against the first baffle 8 , driving the trigger plate 5 to slide so that the pressing mechanism presses the circuit board 17 .

[0038] The circuit board cutting machine provided in this embodiment is used to cut large circuit boards into small ones. The words related to directions and positions such as "front", "back", "left", "right", "up", and "down" involved in this embodiment are relative to the accompanying drawings. Specifically, the support plate 1 is the supporting structure of the cutting machine. Support legs are fixedly installed on the support plate 1 to support the support plate 1. Two inverted T-shaped slide grooves 101 arranged opposite to each other are provided on the top of the support plate 1. Two inverted T-shaped sliding plates 201 that are slidably connected and corresponding to the two inverted T-shaped slide grooves 101 are fixedly installed on the bottom of the sliding plate 2. A connecting plate is fixedly installed on the center line of the bottom of the sliding plate 2. The connecting plate is provided with an internal threaded hole 202. The driving member includes a servo motor 14 installed on the support plate 1, and the output shaft of the servo motor 14 The upper key is connected to a screw rod 3 that is rotatably connected to the support plate 1. The screw rod 3 passes through the internal threaded hole 202 and is screwed to the internal threaded hole 202. Starting the servo motor 14 can drive the screw rod 3 to rotate forward and reverse. When the servo motor 14 drives the screw rod 3 to rotate forward, it drives the sliding plate 2 to slide to the right, and vice versa, it drives the sliding plate 2 to slide to the left. The placement table 4 is fixedly installed on the sliding plate 2 and is used to place the circuit board 17. The placement table 4 moves synchronously with the sliding plate 2, thereby driving the circuit board 17 to move synchronously to realize the transportation of the circuit board 17. A bracket 10 is fixedly mounted on the support plate 1, and a cylinder 12 is fixedly mounted on the bracket 10. A cutting knife 11 is fixedly mounted on the output end of the cylinder 12 after passing through the bracket 10. Starting the cylinder 12 can drive the cutting knife 11 to move upward and downward. When the cutting knife 11 moves downward, the circuit board 17 can be cut. An avoidance groove 401 corresponding to the blade of the cutting knife 11 is provided on the top of the placement table 4. When the cutting knife 11 cuts the circuit board 17, its blade enters the avoidance groove 401 to prevent the blade of the cutting knife 11 from colliding with the top of the placement table 4 and causing the blade to retract. At least two sliding rods 13 are slidably inserted on the bracket 10, and the two sliding rods 13 are respectively located on the left and right sides of the cylinder 12. The two sliding rods 13 are fixedly connected to the cutting knife 11. Under the action of the two sliding rods 13, the stability of the cutting knife 11 when sliding up and down can be improved.

[0039] The clamping mechanism is used to compress and secure the circuit board placed on the placement table 4, preventing the circuit board 17 from shaking during cutting. The clamping mechanism is mounted on the sliding plate 2 and moves synchronously with the sliding plate 2, so that the circuit board 17 can be conveyed while being clamped and secured. Before the driving member drives the sliding plate 2 to slide toward the cutting blade 11, the clamping mechanism clamps and secures the circuit board 17, ensuring stable cutting of the circuit board 17. The trigger plate 5 is used to drive the clamping mechanism to press down so as to clamp and fix the circuit board 17. The trigger plate 5 is slidably arranged on the clamping mechanism and has sliding resistance so that the trigger plate 5 can move along with the movement of the clamping mechanism. The first baffle 8 is used to block the trigger plate 5 so that the trigger plate 5 can slide relative to the clamping mechanism (that is, the clamping mechanism moves but the trigger plate 5 does not slide due to being blocked by the first baffle 8, so that the trigger plate 5 and the clamping mechanism slide relative to each other). When the trigger plate 5 and the clamping mechanism slide relative to each other, when the trigger plate 5 slides to a specific position, it can trigger the clamping mechanism to clamp and fix the circuit board 17. When the trigger plate 5 slides to other positions, it can release the clamping fixation of the circuit board 17. The working principle of the circuit board cutting machine provided by the present invention is as follows: in the initial state, the pressing mechanism does not abut against the circuit board 17, that is, the distance between the pressing mechanism and the placement table 4 is greater than the thickness of the circuit board 17. First, the circuit board 17 is placed on the placement table 4. At this time, the pressing mechanism is above the circuit board 17, and then the servo motor 14 is started to rotate in the opposite direction. The servo motor 14 drives the screw rod 3 to rotate in the opposite direction to drive the sliding plate 2 to slide to the left (that is, in the direction of the first baffle 8). The sliding plate 2 drives the placement table 4, the circuit board 17, the pressing mechanism and the trigger plate 5 to move synchronously to the left, so that the end of the trigger plate 5 abuts against the side of the first baffle 8. Under the blocking action of the first baffle 8, the trigger plate 5 stops moving, while the sliding plate 2, the placement table 4, the circuit board 17, and the pressing mechanism continue to move synchronously to the left, so that the trigger plate 5 slides on the pressing mechanism. The sliding of the trigger plate 5 drives the pressing mechanism to squeeze the circuit board 17 downward until the circuit board 17 is pressed tightly on the placement table 4, thereby fixing the placement table 4. The servo motor 14 is then started to rotate forward, driving the screw rod 3 to rotate forward, thereby driving the sliding plate 2 to move to the right (the cutting blade 11 is located to the right of the first baffle 8). The sliding plate 2 drives the placement table 4, the circuit board 17, the clamping mechanism, and the trigger plate 5 to move to the right synchronously. When the circuit board 17 moves directly below the cutting blade 11, the servo motor 14 stops working and the cylinder 12 is started to move the cutting blade 11 downward to cut the circuit board 17. In the prior art, although multiple cylinders are provided to drive the pressing plate downward to achieve the squeeze fixation of the circuit board, replacing manual fixation with electric drive, the corresponding additional provision of multiple cylinders will undoubtedly increase the manufacturing cost of the equipment, resulting in poor economic efficiency of equipment manufacturing.

[0040] In this embodiment, a trigger plate 5 is slidably arranged on the clamping mechanism so that the sliding of the trigger plate 5 can trigger the clamping mechanism to clamp and fix the circuit board 17 on the placement table 4, and the trigger plate 5 is plugged into the clamping mechanism, and the clamping mechanism is installed on the sliding plate 2. When the driving member drives the sliding plate 2 to slide, it can drive the trigger plate 5 to move. In the process of the trigger plate 5 moving toward the first baffle 8, the end of the trigger plate 5 gradually abuts against the first baffle 8 and drives the trigger plate 5 to slide under the blocking action of the first baffle 8 so that the trigger plate 5 triggers the clamping mechanism to press down, thereby clamping and fixing the circuit board 17. At the same time, when the driving member drives the sliding plate 2 to slide, it can drive the placement table 4 to move to realize the transportation of the circuit board 17. It can be seen that the driving member in the present invention can drive the sliding plate 2 and the placement table 4 to slide to realize the transportation of the circuit board 17, and can also drive the trigger plate 5 to slide to trigger the clamping mechanism to clamp the circuit board 17, thereby realizing automatic fixation of the circuit board 17, thereby eliminating the need for multiple cylinders added in the prior art for fixing the circuit board, reducing the manufacturing cost of the equipment, improving the economy of equipment manufacturing, and effectively solving the shortcomings of the prior art.

[0041] In this embodiment, the clamping mechanism includes a plurality of fixed columns 6 fixed on the sliding plate 2 and a plurality of pressure plates 7 slidably plugged into the plurality of fixed columns 6 in a one-to-one correspondence. The pressure plates 7 are slidably plugged into the corresponding fixed columns 6 in the vertical direction. The plurality of pressure plates 7 are located above the placement table 4 and are used to squeeze the circuit board 17 placed on the placement table 4, that is, the clamping mechanism clamps and fixes the circuit board 17 by squeezing the top of the circuit board 17 with the plurality of pressure plates 7. The trigger plate 5 is slidably plugged between the fixed columns 6 and the pressure plate 7. The trigger plate 5 abuts and cooperates with the pressure plate 7, specifically, the bottom of the trigger plate 5 abuts and cooperates with the top of the pressure plate 7. When the trigger plate 5 abuts with the pressure plate 7, it can generate a downward squeezing force on the pressure plate 7. Under the action of the squeezing force, the pressure plate 7 slides downward so that the end face of the pressure plate 7 abuts and squeezes the circuit board 17, thereby fixing the circuit board 17 between the pressure plate 7 and the placement table 4.

[0042] Among them, multiple fixed columns 6 are divided into two groups along the sliding direction perpendicular to the sliding plate 2, and the number of fixed columns 6 in each group is at least two. The number of trigger plates 5 is two and they are slidably plugged into the two groups of fixed columns 6 in a one-to-one correspondence. The two trigger plates 5 have exactly the same structure and size, and are synchronously abutted against the first baffle 8, so that the two trigger plates 5 can simultaneously trigger all the pressure plates 7 to press down the circuit board 17, preventing the circuit board 17 from sliding when fixed.

[0043] In this embodiment, the trigger plate 5 includes a plate body 501 and two guide plates 502 fixedly provided on the front and rear sides of the plate body 501. The two guide plates 502 are used to guide the trigger plate 5 so that the trigger plate 5 can slide stably on the pressing mechanism. The bottom surface of the plate body 501 abuts against the top surface of the pressure plate 7. The bottom surface of the plate body 501 includes a first plane 503, a first curved surface 504, and a second plane 505 arranged in sequence. The first curved surface 504 is used to allow the pressure plate 7 to be below the first plane 503 and the second plane 505. 505, so that the pressing plate 7 can switch smoothly between the bottom of the first plane 503 and the bottom of the second plane 505, that is, the pressing plate 7 can be located below the first plane 503 or below the second plane 505. When the pressing plate 7 is located below the first plane 503, the first plane 503 abuts the top surface of the pressing plate 7. The height of the second plane 505 is greater than the height of the first plane 503, so that when the first plane 503 abuts the top surface of the pressing plate 7, the circuit board 17 is pressed between the pressing plate 7 and the placement table 4 (as shown in FIG. Figure 6 As shown), when the pressing plate 7 is located below the second plane 505, the circuit board 17 is released (as shown). Figure 7 As shown, the pressing plate 7 is elastically slidably engaged with the fixing column 6, and the elastic force acting on the pressing plate 7 is upward. When the pressing plate 7 is located below the second plane 505, the pressing plate 7 elastically slides upward to separate the end of the pressing plate 7 from the top of the circuit board 17, thereby facilitating the removal of the circuit board 17 from the placement table 4. At the same time, the top surface of the pressing plate 7 elastically abuts against the second plane 505, so that when the pressing plate 7 is located below the second plane 505, it still exerts an upward squeezing force on the trigger plate 5, thereby increasing the sliding resistance of the trigger plate 5. In this embodiment, when placing the circuit board 17 on the placement table 4, the trigger plate 5 can be slid to a position where the pressing plate 7 is located below the second plane 505. At this point, the vertical distance between the end surface of the pressing plate 7 and the placement table 4 is greater than the thickness of the circuit board 17, thereby facilitating the placement of the circuit board 17 between the placement table 4 and the pressing plate 7.

[0044] The working principle of fixing the circuit board 17 of the present invention is now described in conjunction with the bottom surface of the plate body 501: after the circuit board 17 is placed on the placement table 4, the servo motor 14 is started to rotate in the opposite direction, and the servo motor 14 drives the screw rod 3 to rotate in the opposite direction to drive the sliding plate 2 to slide to the left, and the sliding plate 2 drives the placement table 4, the circuit board 17, the clamping mechanism and the trigger plate 5 to move synchronously to the left, so that the end of the trigger plate 5 abuts against the side of the first baffle 8. Under the blocking action of the first baffle 8, the trigger plate 5 slides to the right on the clamping mechanism, so that the pressing plate 7 moves from below the second plane 505 through the first curved surface 504 to below the first plane 503. At this time, the first plane 503 presses down the pressing plate 7 so that the pressing plate 7 presses the circuit board 17 to fix the circuit board 17.

[0045] At the same time, under the action of elastic force, the pressure plate 7 is driven to have an upward thrust, so that the top of the pressure plate 7 produces an extrusion force on the bottom surface of the trigger plate 5, so that a sliding friction force is generated between the trigger plate 5 and the clamping mechanism, so that when the trigger plate 5 and the clamping mechanism move synchronously, the trigger plate 5 will not slide relative to the clamping mechanism, thereby improving the consistency of the synchronous movement of the trigger plate 5 and the clamping mechanism. It can be seen that the pressure plate 7 also plays a role in improving the consistency of the synchronous movement of the trigger plate 5 and the clamping mechanism.

[0046] In this embodiment, the bottom surface of the plate body 501 further includes a second curved surface 506 and a third plane 507 arranged in sequence. The second curved surface 506 is connected to the second plane 505. The second curved surface 506 is used to enable the pressure plate 7 to switch back and forth between below the second plane 505 and below the third plane 507. The height of the third plane 507 is greater than the height of the second plane 505. The vertical distance between the third plane 507 and the pressure plate 7 is greater than the vertical distance of the pressure plate 7 when it is slidably inserted in the fixed column 6, so that when the pressure plate 7 is located below the third plane 507, the pressure plate 7 can be removed from the fixed column 6 (such as Figure 8 When the pressing plate 7 is located below the second plane 505 or below the first plane 503, the pressing plate 7 will not separate from the fixing column 6 (as shown in FIG. Figure 6 and 7 As shown in the state), it can be seen that the trigger plate 5 plays a role in limiting the pressure plate 7 on the fixed column 6, and the pressure plate 7 can be disassembled by changing the position of the trigger plate 5.

[0047] In this embodiment, a sliding cavity is provided in the fixing column 6, and an opening 604 connected to the sliding cavity is provided on the fixing column 6 so that the sliding cavity is divided into an upper sliding cavity 602 and a lower sliding cavity 601. One end of the pressure plate 7 is slidably inserted into the lower sliding cavity 601, and the other end extends to the outside of the fixing column 6 through the opening 604 to squeeze and fix the circuit board 17. The vertical length of the opening 604 is greater than the maximum vertical length of the pressure plate 7, so that the pressure plate 7 can be separated from the fixing column 6 through the opening 604, thereby realizing the disassembly of the pressure plate 7. When installing the pressure plate 7, one end of the pressure plate 7 is also slidably inserted into the lower sliding cavity 601 through the opening 604.

[0048] Among them, two guide grooves 603 are opened in the upper sliding cavity 602, which are slidably plugged into the two guide plates 502 in a one-to-one correspondence. Through the one-to-one sliding plugging of the two guide plates 502 and the two guide grooves 603, a sliding connection between the trigger plate 5 and the clamping mechanism is realized.

[0049] In this embodiment, a compression spring 16 is placed in the lower descending cavity 601, the top of the compression spring 16 abuts against the end face of the pressure plate 7, and the bottom of the compression spring 16 abuts against the bottom of the lower descending cavity 601. Under the action of the compression elastic force of the compression spring 16, the elastic sliding connection between the pressure plate 7 and the fixed column 6 is realized. When the pressure plate 7 is located below the third plane 507, the elastic force of the compression spring 16 drives the pressure plate 7 to move upward and disengage from the lower descending cavity 601, thereby realizing automatic disassembly of the pressure plate 7.

[0050] Furthermore, an elastic pad 701 is fixed to the end face of the pressure plate 7 located outside the fixing column 6, and the bottom of the elastic pad 701 abuts against the top of the circuit board 17. When the pressure plate 7 is pressed downward by the trigger plate 5, the bottom of the elastic pad 701 squeezes the top of the circuit board 17 to fix the circuit board 17. By using the elastic pad 701 to squeeze the top of the circuit board 17, the friction between the circuit board 17 and the circuit board 17 can be increased without causing wear to the circuit board 17, thereby protecting the circuit board 17.

[0051] In this embodiment, a plurality of through holes 605 are provided on the plurality of fixing columns 6, and a screw is inserted into each of the plurality of through holes 605. A plurality of screw holes (not shown in the figure) are provided on the sliding plate 2 to be screwed to the plurality of screws. The number of screw holes is greater than the number of screws so that the distance between the plurality of fixing columns 6 can be adjusted. When it is necessary to cut circuit boards 17 of different sizes, the distance between the plurality of fixing columns 6 can be changed so that the clamping mechanism can still clamp and fix the circuit board 17, thereby improving the practicality of the cutting machine.

[0052] Furthermore, a second baffle 9 is fixedly mounted on the support plate 1, which abuts against the right end faces of the two trigger plates 5. The second baffle 9 is located on the right side of the cutting knife 11 and is used to limit the two trigger plates 5. When the circuit board 17 is cut, the cut circuit board 17 is still clamped and fixed by the clamping mechanism. At this time, the driving member drives the sliding plate 2 to slide toward the second baffle 9. When the circuit board 17 is staggered with the cutting knife 11, the right end faces of the two trigger plates 5 abut against the second baffle 9 and, under the blocking action of the second baffle 9, the trigger plate 5 slides to the left side of the clamping mechanism, so that the pressure plate 7 moves from the bottom of the first plane 503 through the first arc surface 504 to the bottom of the second plane 505. At this time, the pressure plate 7 is pushed upward under the elastic force of the compression spring 16 to slide so that the bottom surface of the pressure plate 7 is separated from the circuit board 17, so that the circuit board 17 is automatically released. After that, the cut circuit board 17 can be directly removed from the placement table 4.

[0053] Furthermore, when the pressure plate 7 needs to be replaced and disassembled, the sliding plate 2 is further driven by the driving member to slide toward the second baffle 9 so that the pressure plate 7 slides from below the second plane 505 through the second arc surface 506 to below the third plane 507. At this time, the pressure plate 7 is driven to slide out of the lower descending cavity 601 under the elastic force of the compression spring 16 to realize automatic disassembly of the pressure plate 7.

[0054] Furthermore, a cleaning plate 901 that is plugged into the avoidance groove 401 is fixedly installed on the second baffle 9. After the circuit board 17 is cut, the driving member drives the sliding plate 2 to slide toward the second baffle 9, and the cleaning plate 901 is inserted into the avoidance groove 401 to remove debris generated when cutting the circuit board 17 from the avoidance groove 401.

[0055] Among them, a storage box 15 with an open top is slidably connected to the end of the placement table 4 away from the second baffle 9. The storage box 15 is located below the end of the avoidance groove 401 away from the second baffle 9, and is used to store debris cleaned out from the avoidance groove 401. Two T-shaped slides 1501 arranged opposite to each other are fixedly installed on the top of the storage box 15. The end face of the placement table 4 is provided with two T-shaped slots (not shown in the figure) that are slidably connected to the two T-shaped slides 1501 in a one-to-one correspondence. The two T-shaped slides 1501 are slidably connected to the two T-shaped slots so that the storage box 15 can be easily installed and disassembled to clean the debris collected in the storage box 15.

[0056] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A cutting machine for circuit boards, comprising a sliding plate (2) slidably arranged on a support plate (1) and a driving member mounted on the support plate (1) for driving the sliding plate (2) to slide back and forth, wherein a placing table (4) is fixedly mounted on the sliding plate (2), characterized in that: Also includes: A pressing mechanism, which is mounted on the sliding plate (2) and located above the placement table (4); A trigger plate (5) is slidably plugged into the pressing mechanism and is used to trigger the pressing mechanism to press downward; a first baffle (8) fixed on the support plate (1) and abutting against one end of the trigger plate (5); When the sliding plate (2) slides toward the first baffle (8), the trigger plate (5) is driven to abut against the first baffle (8), driving the trigger plate (5) to slide so that the pressing mechanism presses the circuit board (17).

2. The circuit board cutting machine according to claim 1, wherein: The clamping mechanism comprises a plurality of fixed columns (6) fixed on the sliding plate (2) and a plurality of pressure plates (7) slidably plugged in one-to-one with the plurality of fixed columns (6); the plurality of pressure plates (7) are located above the placement table (4); the trigger plate (5) is slidably plugged between the fixed columns (6) and the pressure plates (7); and the trigger plate (5) and the pressure plates (7) are in abutment with each other.

3. The circuit board cutting machine according to claim 2, wherein: The plurality of fixed columns (6) are divided into two groups along a sliding direction perpendicular to the sliding plate (2), each group of the fixed columns (6) is at least two, and the number of the trigger plates (5) is two and they are slidably plugged in a one-to-one correspondence with the two groups of fixed columns (6).

4. The circuit board cutting machine according to claim 3, wherein: The trigger plate (5) includes a plate body (501) and two guide plates (502) fixedly arranged on the front and rear sides of the plate body (501) in a one-to-one manner. The bottom surface of the plate body (501) is in contact with the top surface of the pressure plate (7). The bottom surface of the plate body (501) includes a first plane (503), a first curved surface (504), and a second plane (505) arranged in sequence. The height of the second plane (505) is greater than the height of the first plane (503). When the first plane (503) is in contact with the top surface of the pressure plate (7), the circuit board (17) is pressed between the pressure plate (7) and the placement table (4).

5. The circuit board cutting machine according to claim 4, characterized in that: The bottom surface of the plate body (501) further includes a second curved surface (506) and a third plane (507) arranged in sequence, the second curved surface (506) is connected to the second plane (505), the height of the third plane (507) is greater than the height of the second plane (505), and the vertical distance between the third plane (507) and the pressure plate (7) is greater than the vertical distance of the pressure plate (7) slidingly inserted in the fixed column (6), so that the pressure plate (7) can be removed from the fixed column (6) when the pressure plate (7) is located below the third plane (507).

6. The circuit board cutting machine according to claim 5, characterized in that: A sliding cavity is provided in the fixed column (6), and an opening (604) connected to the sliding cavity is provided on the fixed column (6) so that the sliding cavity is divided into an upper sliding cavity (602) and a lower sliding cavity (601). One end of the pressure plate (7) is slidably inserted into the lower sliding cavity (601), and the other end extends to the outside of the fixed column (6) through the opening (604). The vertical length of the opening (604) is greater than the maximum vertical length of the pressure plate (7).

7. The circuit board cutting machine according to claim 6, wherein: Two guide grooves (603) are provided in the upper sliding cavity (602) and are slidably connected with the two guide plates (502) in a one-to-one correspondence.

8. The circuit board cutting machine according to claim 6, wherein: A compression spring (16) is placed in the lower sliding cavity (601), the top of the compression spring (16) abuts against the end face of the pressure plate (7), and the bottom of the compression spring (16) abuts against the bottom of the lower sliding cavity (601). When the pressure plate (7) is located below the third plane (507), the elastic force of the compression spring (16) drives the pressure plate (7) to move upward and disengage from the lower sliding cavity (601).

9. The circuit board cutting machine according to claim 2, wherein: An elastic pad (701) is fixedly provided on one end surface of the pressing plate (7), and the bottom of the elastic pad (701) is in abutment with the top of the circuit board (17).

10. The circuit board cutting machine according to claim 2, wherein: A plurality of through holes (605) are provided on the plurality of fixing columns (6), each of which is plugged with a screw. A plurality of screw holes are provided on the sliding plate (2) for screwing with the plurality of screws. The number of the screw holes is greater than the number of the screws so that the distance between the plurality of fixing columns (6) can be adjusted.

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