Circuit board cutting device for circuit board production

Abstract

The utility model discloses a circuit board cutting device for circuit board production, and relates to the technical field of circuit board cutting. Lifting portal frames are fixedly installed on the front side and the rear side of the top face of the cutting table, longitudinal moving mechanisms are arranged on the surfaces of the lifting portal frames, transverse moving mechanisms are fixedly installed on the surfaces of longitudinal moving mechanism moving pieces, motor boxes are fixedly installed on the surfaces of transverse moving mechanism moving pieces, and stepping motors are fixedly installed in the motor boxes. The output end of the stepping motor is fixedly connected with a cutting machine body. A circuit board substrate to be cut is clamped and fixed from the left side and the right side through the fixing assembly, the direction of the cutting lines of the cutting machine body is changed through the stepping motor, the distance between the adjacent transverse cutting lines is adjusted through the longitudinal moving mechanism, and the distance between the adjacent longitudinal cutting lines can be adjusted through the transverse moving mechanism. And the circuit board substrate can be cut into various different specifications, so that more diversified production requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board cutting, in particular to a circuit board cutting device for circuit board production. Background Art

[0002] A circuit board is an indispensable component in electronic devices. As a support for electronic components and circuits, it realizes the layout design of complex circuits and the transmission of electrical signals. A circuit board is composed of multiple layers of insulating materials and conductive materials, usually including a substrate (such as fiberglass), copper foil, printing ink, drilling holes, pads, etc. These layers are perforated and plated with conductors for connection and conduction. During the production process of a circuit board, it is necessary to first use a cutting device to cut the substrate.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN218398411U discloses a circuit board cutting device for circuit board production. The circuit board is fixed on the operating table through a clamping member, and then the motor is started. The motor drives a bidirectional lead screw, and the bidirectional lead screw drives a slide plate through threaded connection. Under the sliding guiding action of the guiding rod, the slide plates approach each other. The slide plates drive a first hinge rod and a second hinge rod. The first hinge rod drives a top plate to drive a thimble to rise, and the second hinge rod drives a cutting plate downward. The cutting plate cuts the circuit board into several cut hole sizes through a transverse knife and a longitudinal knife.

[0004] The above prior art solution has the following defects: The specifications of the cutting rectangle formed by the intersection of the transverse knife and the longitudinal knife arranged on the surface of the cutting plate cannot be adjusted. Therefore, the specifications of the substrates that can be cut and produced are single, and it cannot meet the cutting and processing requirements of circuit boards of multiple specifications.

[0005] Therefore, a circuit board cutting device for circuit board production is proposed. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a circuit board cutting device for circuit board production to solve the problems mentioned in the above background art.

[0007] The present utility model specifically adopts the following technical solutions to achieve the above purpose:

[0008] A circuit board cutting device for circuit board production, including a cutting table. On the front and rear sides of the top surface of the cutting table, lifting gantry frames are fixedly installed. A longitudinal moving mechanism is provided on the surface of the lifting gantry frames. A transverse moving mechanism is fixedly installed on the moving part of the longitudinal moving mechanism. A motor box is fixedly installed on the moving part of the transverse moving mechanism. A stepping motor is fixedly installed in the motor box. The output end of the stepping motor is fixedly connected to a cutting machine body. Fixed components are fixedly installed on the left and right sides of the top surface of the cutting table. A transverse driving component is provided on the top surface of the cutting table. A longitudinal cutting support block is fixedly installed on the moving part of the transverse driving component. A longitudinal cutting pressing plate is arranged above the longitudinal cutting support block. A rotating connecting piece for installing the longitudinal cutting pressing plate is arranged at the rear side of the top surface of the longitudinal cutting support block. A clamping and fixing component for clamping and fixing the longitudinal cutting pressing plate is arranged at the front side of the top surface of the longitudinal cutting support block. A downward pressing component for pressing the longitudinal cutting pressing plate is fixedly installed on the top surface of the longitudinal cutting support block.

[0009] Further, a cutting groove is opened in the middle of the top surface of the longitudinal cutting support block, and a cutting edge groove is opened in the middle of the top surface of the longitudinal cutting pressing plate. The cutting edge groove and the cutting groove are arranged in alignment. The downward pressing component includes a second electric telescopic rod. The two second electric telescopic rods are respectively fixedly installed on the front and rear sides of the top surface of the longitudinal cutting support block. The top surface of the telescopic end of the second electric telescopic rod is fixedly installed with a pressing plate. The pressing plate is arranged directly above the longitudinal cutting pressing plate. Support legs are fixedly installed at the four corners of the bottom surface of the cutting table. The lifting gantry frame includes a longitudinally arranged hydraulic telescopic rod and a cross bar fixedly installed on the top surface of the hydraulic telescopic rod. The longitudinal moving mechanism is arranged on the surface of the cross bar.

[0010] Further, the fixed component includes side support blocks, side pressing plates and first electric telescopic rods. The two side support blocks are respectively fixedly installed on the left and right sides of the top surface of the cutting table. The side pressing plates are arranged directly above the side support blocks. The first electric telescopic rod is fixedly installed on the top surface of the cutting table and the telescopic end is fixedly installed on the bottom surface of the side pressing plate.

[0011] Further, the transverse driving component includes a sliding groove and a driving motor. The sliding groove is transversely opened on the top surface of the cutting table. The driving motor is fixedly installed on the side surface of the cutting table. The output end of the driving motor is fixedly connected to a threaded rod. The threaded rod is rotatably installed on the inner wall surface of the sliding groove. A moving block is slidably installed on the inner wall surface of the sliding groove. The moving block is threadedly installed on the surface of the threaded rod. The longitudinal cutting support block is fixedly installed on the top surface of the moving block and the bottom surface of the longitudinal cutting support block is slidably arranged in contact with the top surface of the cutting table.

[0012] Further, the rotating connecting piece includes a mounting shaft. The mounting shaft is fixedly installed at the rear side of the top surface of the longitudinal cutting support block. A support spring is sleeved on the surface of the mounting shaft. An anti - detachment block is fixedly installed on the top surface of the mounting shaft. The rear end of the longitudinal cutting pressing plate is movably installed on the surface of the mounting shaft. The longitudinal cutting pressing plate is arranged between the anti - detachment block and the support spring.

[0013] Further, the clamping component includes a T-shaped groove which is opened at the front side of the top surface of the longitudinal cutting support block. A T-shaped slider is slidably installed in the T-shaped groove. The T-shaped slider protrudes from the top surface of the longitudinal cutting support block. A limiting block is fixedly installed on the top surface of the T-shaped slider. The T-shaped slider is slidably engaged with the front end of the longitudinal cutting pressure plate. A traction spring is fixedly connected between the surface of the T-shaped slider and the inner wall surface of the T-shaped groove.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The circuit board substrate to be cut is clamped and fixed from the left and right sides by the fixing component. The cutting line direction of the cutting machine body is changed by the stepping motor. The distance between adjacent transverse cutting lines is adjusted by the longitudinal movement mechanism. The distance between adjacent longitudinal cutting lines can be adjusted by the transverse movement mechanism, so that the circuit board substrate can be cut into various different specifications to meet more diverse production requirements.

[0016] 2. When longitudinal cutting is required, the transverse movement driving component drives the longitudinal cutting support block to move to directly below the longitudinal cutting position of the substrate. The longitudinal cutting pressure plate rotates to the front-back direction and is clamped and fixed by the clamping component. Then, the longitudinal cutting pressure plate is pressed down by the pressing component, so that the longitudinal cutting pressure plate and the longitudinal cutting support block cooperate to squeeze and fix both sides of the longitudinal cutting line of the substrate, making the longitudinal cutting more reliable and accurate. When placing the substrate to be clamped and fixed by the fixing component, the longitudinal cutting pressure plate is in the left-right horizontal state to ensure that the circuit board can be smoothly placed and fixed. Description of the Drawings

[0017] Figure 1 is the axonometric drawing of the three-dimensional structure of the present utility model;

[0018] Figure 2 is the front sectional view of the three-dimensional structure of the present utility model;

[0019] Figure 3 is the right sectional view of the three-dimensional structure of the longitudinal cutting support block of the present utility model;

[0020] Reference numerals: 1, cutting table; 2, lifting gantry; 3, longitudinal movement mechanism; 4, transverse movement mechanism; 5, motor box; 6, stepping motor; 7, cutting machine body; 8, fixing component; 801, side support block; 802, side pressure plate; 803, first electric telescopic rod; 9, transverse movement driving component; 901, sliding groove; 902, driving motor; 903, threaded rod; 904, moving block; 10, longitudinal cutting support block; 11, rotating connecting piece; 111, mounting shaft; 112, support spring; 113, anti-detachment block; 12, longitudinal cutting pressure plate; 13, clamping component; 131, T-shaped groove; 132, T-shaped slider; 133, limiting block; 134, traction spring; 14, pressing component; 141, second electric telescopic rod; 142, pressing plate; 15, cutting edge groove; 16, cutting groove; 17, support leg. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0023] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0024] All the electrical components appearing in this text are electrically connected to an external main controller and 220V mains power, and the main controller can be a conventional known device such as a computer for control.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", "above", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0026] Such as Figures 1 to 3As shown in the figure, a circuit board cutting device for circuit board production includes a cutting table 1. On the front and rear sides of the top surface of the cutting table 1, lifting gantry frames 2 are fixedly installed. A longitudinal movement mechanism 3 is provided on the surface of the lifting gantry frames 2. A transverse movement mechanism 4 is fixedly installed on the moving member of the longitudinal movement mechanism 3. A motor box 5 is fixedly installed on the moving member of the transverse movement mechanism 4. A stepping motor 6 is fixedly installed in the motor box 5. The output end of the stepping motor 6 is fixedly connected to a cutting machine body 7. Fixed components 8 are fixedly installed on the left and right sides of the top surface of the cutting table 1. A transverse drive component 9 is provided on the top surface of the cutting table 1. A longitudinal cutting support block 10 is fixedly installed on the moving member of the transverse drive component 9. Above the longitudinal cutting support block 10 is a longitudinal cutting pressing plate 12. At the rear side of the top surface of the longitudinal cutting support block 10 is a rotating connecting member 11 for installing the longitudinal cutting pressing plate 12. At the front side of the top surface of the longitudinal cutting support block 10 is a clamping and fixing component 13 for clamping and fixing the longitudinal cutting pressing plate 12. A downward pressing component 14 for pressing the longitudinal cutting pressing plate 12 is fixedly installed on the top surface of the longitudinal cutting support block 10.

[0027] More specifically, the circuit board substrate to be cut is clamped and fixed from the left and right sides by the fixed components 8. The longitudinal movement mechanism 3 and the transverse movement mechanism 4 cooperate. The cutting line direction of the cutting machine body 7 is changed by the stepping motor 6. The cutting machine body 7 is driven by the lifting gantry frame 2 to move downward, so that the cutting machine body 7 can switch to longitudinal and transverse cutting. The distance between adjacent transverse cutting lines is adjusted by the longitudinal movement mechanism 3, and the distance between adjacent longitudinal cutting lines can be adjusted by the transverse movement mechanism 4, so that the circuit board substrate can be cut into various different specifications to meet more diverse production requirements; when longitudinal cutting is required, the transverse drive component 9 drives the longitudinal cutting support block 10 to move to directly below the longitudinal cutting position of the substrate. The longitudinal cutting pressing plate 12 rotates to the front-back state and is clamped and fixed by the clamping and fixing component 13. Then, the downward pressing component 14 presses the longitudinal cutting pressing plate 12, so that the longitudinal cutting pressing plate 12 and the longitudinal cutting support block 10 cooperate to press and fix both sides of the longitudinal cutting line of the substrate, making the longitudinal cutting more reliable and accurate. When placing the substrate to be clamped and fixed by the fixed components 8, the longitudinal cutting pressing plate 12 is in the left-right transverse state to ensure that the circuit board can be smoothly placed and fixed.

[0028] A cutting groove 16 is opened in the middle of the top surface of the longitudinal cutting support block 10. An edge feeding groove 15 is opened in the middle of the top surface of the longitudinal cutting pressing plate 12. The edge feeding groove 15 and the cutting groove 16 are arranged in alignment. The downward pressing component 14 includes a second electric telescopic rod 141. The two second electric telescopic rods 141 are respectively fixedly installed on the front and rear sides of the top surface of the longitudinal cutting support block 10. The top surface of the telescopic end of the second electric telescopic rod 141 is fixedly installed with a pressing plate 142. The pressing plate 142 is arranged directly above the longitudinal cutting pressing plate 12. Support legs 17 are fixedly installed at the four corners of the bottom surface of the cutting table 1. The lifting gantry frame 2 includes a hydraulic telescopic rod arranged longitudinally and a cross bar fixedly installed on the top surface of the hydraulic telescopic rod. The longitudinal movement mechanism 3 is arranged on the surface of the cross bar.

[0029] Specifically, the blade inlet groove 15 and the cutting groove 16 are used to accommodate the cutting machine body 7 for cutting work. The telescopic end of the second electric telescopic rod 141 drives the pressing plate 142 to lift and lower. The pressing plate 142 presses down on the longitudinal cutting pressing plate 12 from the front and rear ends, so that the longitudinal cutting pressing plate 12 and the longitudinal cutting support block 10 press on the substrate, in order to fix both sides of the longitudinal cutting line of the substrate, making the longitudinal cutting can be carried out more reliably and accurately. The hydraulic telescopic rod of the lifting gantry 2 drives the cross bar to lift and lower, and then drives the longitudinal moving mechanism 3 arranged on the surface of the cross bar to lift and lower, and finally drives the cutting machine body 7 to lift and lower. The cutting work is completed by the cutting machine body 7 moving down to contact the surface of the substrate.

[0030] The fixing component 8 includes side support blocks 801, side pressing plates 802 and first electric telescopic rods 803. The two side support blocks 801 are respectively fixedly installed on the left and right sides of the top surface of the cutting table 1. The side pressing plate 802 is arranged directly above the side support block 801. The first electric telescopic rod 803 is fixedly installed on the top surface of the cutting table 1 and the telescopic end is fixedly installed on the bottom surface of the side pressing plate 802.

[0031] Specifically, the telescopic end of the first electric telescopic rod 803 drives the side pressing plate 802 to lift and lower. When the side pressing plate 802 moves down, it can cooperate with the side support block 801 to clamp the edge of the circuit board substrate. The two fixing components 8 clamp from the left and right sides, and the fixing of the substrate can be completed, which is convenient for the cutting machine body 7 to carry out transverse cutting.

[0032] The transverse movement driving component 9 includes a sliding groove 901 and a driving motor 902. The sliding groove 901 is transversely opened on the top surface of the cutting table 1. The driving motor 902 is fixedly installed on the side surface of the cutting table 1. The output end of the driving motor 902 is fixedly connected with a threaded rod 903. The threaded rod 903 is rotatably installed on the inner wall surface of the sliding groove 901. A moving block 904 is slidably installed on the inner wall surface of the sliding groove 901. The moving block 904 is threadedly installed on the surface of the threaded rod 903. The longitudinal cutting support block 10 is fixedly installed on the top surface of the moving block 904 and the bottom surface of the longitudinal cutting support block 10 is slidably arranged in contact with the top surface of the cutting table 1.

[0033] Specifically, the output end of the driving motor 902 drives the threaded rod 903 to rotate, so that the moving block 904 which is threadedly installed on the surface of the threaded rod 903 and slidably installed on the inner wall surface of the sliding groove 901 moves left and right, and then drives the longitudinal cutting support block 10 fixedly installed on the top surface of the moving block 904 to move left and right, adjusting the distance between two adjacent movements of the longitudinal cutting support block 10, thereby adjusting the distance between two adjacent longitudinal cutting lines, and cutting the substrate into different specifications.

[0034] The rotating connecting member 11 includes a mounting shaft 111, the mounting shaft 111 is fixedly installed at the rear side of the top surface of the longitudinal cutting support block 10, a support spring 112 is sleeved on the surface of the mounting shaft 111, an anti - detachment block 113 is fixedly installed on the top surface of the mounting shaft 111, the rear end of the longitudinal cutting pressing plate 12 is movably installed on the surface of the mounting shaft 111, and the longitudinal cutting pressing plate 12 is arranged between the anti - detachment block 113 and the support spring 112.

[0035] Specifically, the longitudinal cutting pressing plate 12 can rotate and lift around the surface of the mounting shaft 111. The support spring 112 is used to support the rear end of the longitudinal cutting pressing plate 12, and the anti - detachment block 113 is used to prevent the longitudinal cutting pressing plate 12 from slipping off the surface of the mounting shaft 111. When the pressing component 14 presses the longitudinal cutting pressing plate 12, the longitudinal cutting pressing plate 12 descends along the surface of the mounting shaft 111, and the support spring 112 is compressed.

[0036] The clamping component 13 includes a T - shaped groove 131, the T - shaped groove 131 is opened on the front side of the top surface of the longitudinal cutting support block 10, a T - shaped slider 132 is slidably installed in the T - shaped groove 131, the T - shaped slider 132 protrudes from the top surface of the longitudinal cutting support block 10, a limiting block 133 is fixedly installed on the top surface of the T - shaped slider 132, the T - shaped slider 132 is slidably engaged with the front end of the longitudinal cutting pressing plate 12, and a traction spring 134 is fixedly connected between the surface of the T - shaped slider 132 and the inner wall surface of the T - shaped groove 131.

[0037] Specifically, when the T - shaped slider 132 is pulled forward, the longitudinal cutting pressing plate 12 can be freely rotated. At this time, the traction spring 134 is stretched. When the longitudinal cutting pressing plate 12 rotates to the front - to - back direction, the T - shaped slider 132 is released. Under the action of the elastic restoring force of the T - shaped slider 132, the T - shaped slider 132 moves backward, and the T - shaped slider 132 slides into the longitudinal cutting pressing plate 12, thereby clamping and fixing the longitudinal cutting pressing plate 12, so that the longitudinal cutting pressing plate 12 maintains a stable and reliable longitudinal state for the smooth progress of longitudinal cutting work.

[0038] In summary: The circuit board substrate to be cut is clamped and fixed from both left and right sides by the fixing component 8. The cutting line direction of the cutting machine body 7 is changed by the stepping motor 6. The distance between adjacent transverse cutting lines is adjusted by the longitudinal movement mechanism 3. The distance between adjacent longitudinal cutting lines can be adjusted by the transverse movement mechanism 4, so that the circuit board substrate can be cut into various different specifications to meet more diverse production requirements. When longitudinal cutting is required, the transverse movement driving component 9 drives the longitudinal cutting support block 10 to move directly below the longitudinal cutting position of the substrate. The longitudinal cutting pressing plate 12 rotates to the front - to - back state and is clamped and fixed by the clamping component 13. Then, the pressing component 14 presses the longitudinal cutting pressing plate 12, so that the longitudinal cutting pressing plate 12 and the longitudinal cutting support block 10 cooperate to squeeze and fix both sides of the longitudinal cutting line of the substrate, making the longitudinal cutting more reliable and accurate. When placing the substrate to be clamped and fixed by the fixing component 8, the longitudinal cutting pressing plate 12 is in the left - to - right horizontal state to ensure that the circuit board can be smoothly placed and fixed.

[0039] The basic principle, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board cutting device for circuit board production, characterized in that, It includes a cutting table (1). On the front and rear sides of the top surface of the cutting table (1), lifting gantry frames (2) are fixedly installed. A longitudinal movement mechanism (3) is provided on the surface of the lifting gantry frames (2). A transverse movement mechanism (4) is fixedly installed on the surface of the moving member of the longitudinal movement mechanism (3). A motor box (5) is fixedly installed on the surface of the moving member of the transverse movement mechanism (4). A stepping motor (6) is fixedly installed in the motor box (5). The output end of the stepping motor (6) is fixedly connected to a cutting machine body (7). Fixing components (8) are fixedly installed on the left and right sides of the top surface of the cutting table (1). A transverse drive component (9) is provided on the top surface of the cutting table (1). A longitudinal cutting support block (10) is fixedly installed on the surface of the moving member of the transverse drive component (9). Above the longitudinal cutting support block (10) is a longitudinal cutting pressing plate (12). At the rear side of the top surface of the longitudinal cutting support block (10) is a rotating connecting member (11) for installing the longitudinal cutting pressing plate (12). At the front side of the top surface of the longitudinal cutting support block (10) is a locking component (13) for clamping and fixing the longitudinal cutting pressing plate (12). A downward pressing component (14) for pressing the longitudinal cutting pressing plate (12) is fixedly installed on the top surface of the longitudinal cutting support block (10).

2. The circuit board cutting device for circuit board production according to claim 1, characterized in that, In the middle of the top surface of the longitudinal cutting support block (10) is a cutting groove (16). In the middle of the top surface of the longitudinal cutting pressing plate (12) is a cutting edge groove (15). The cutting edge groove (15) and the cutting groove (16) are arranged in alignment. The downward pressing component (14) includes a second electric telescopic rod (141). The two second electric telescopic rods (141) are respectively fixedly installed on the front and rear sides of the top surface of the longitudinal cutting support block (10). On the top surface of the telescopic end of the second electric telescopic rod (141) is a pressing plate (142). The pressing plate (142) is located directly above the longitudinal cutting pressing plate (12). At the four corners of the bottom surface of the cutting table (1) are fixedly installed support legs (17). The lifting gantry frame (2) includes a hydraulically telescopic rod arranged longitudinally and a cross bar fixedly installed on the top surface of the hydraulically telescopic rod. The longitudinal movement mechanism (3) is arranged on the surface of the cross bar.

3. A circuit board cutting device for circuit board production according to claim 1, wherein, The fixing component (8) includes side support blocks (801), side pressing plates (802), and a first electric telescopic rod (803). The two side support blocks (801) are respectively fixedly installed on the left and right sides of the top surface of the cutting table (1). The side pressing plates (802) are located directly above the side support blocks (801). The first electric telescopic rod (803) is fixedly installed on the top surface of the cutting table (1) and the telescopic end is fixedly installed on the bottom surface of the side pressing plate (802).

4. A circuit board cutting device for circuit board production according to claim 1, characterized in that, The transverse movement driving assembly (9) includes a chute (901) and a driving motor (902). The chute (901) is horizontally opened on the top surface of the cutting table (1), and the driving motor (902) is fixedly installed on the side surface of the cutting table (1). The output end of the driving motor (902) is fixedly connected with a threaded rod (903). The threaded rod (903) is rotatably installed on the inner wall surface of the chute (901). A moving block (904) is slidably installed on the inner wall surface of the chute (901). The moving block (904) is threadedly installed on the surface of the threaded rod (903). The longitudinal cutting support block (10) is fixedly installed on the top surface of the moving block (904), and the bottom surface of the longitudinal cutting support block (10) is arranged to slide in contact with the top surface of the cutting table (1).

5. A circuit board cutting device for circuit board production according to claim 1, characterized in that, The rotating connecting piece (11) includes a mounting shaft (111). The mounting shaft (111) is fixedly installed at the rear side of the top surface of the longitudinal cutting support block (10). A support spring (112) is sleeved on the surface of the mounting shaft (111). An anti - detachment block (113) is fixedly installed on the top surface of the mounting shaft (111). The rear end of the longitudinal cutting pressure plate (12) is movably installed on the surface of the mounting shaft (111). The longitudinal cutting pressure plate (12) is arranged between the anti - detachment block (113) and the support spring (112).

6. A circuit board cutting device for circuit board production according to claim 1, characterized in that, The clamping component (13) includes a T - shaped groove (131). The T - shaped groove (131) is opened on the front side of the top surface of the longitudinal cutting support block (10). A T - shaped slider (132) is slidably installed in the T - shaped groove (131). The T - shaped slider (132) protrudes from the top surface of the longitudinal cutting support block (10). A limiting block (133) is fixedly installed on the top surface of the T - shaped slider (132). The T - shaped slider (132) is slidably clamped to the front end of the longitudinal cutting pressure plate (12). A traction spring (134) is fixedly connected between the surface of the T - shaped slider (132) and the inner wall surface of the T - shaped groove (131).

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