Circuit board cutting device convenient to position

Abstract

The utility model discloses a circuit board cutting device convenient to position, which belongs to the technical field of circuit board processing and comprises a workbench, and a pressing and cutting assembly used for pressing and cutting materials is mounted at the upper end of the workbench. The pressing and cutting assembly comprises a cutting device and a pressing device, and the workbench is connected with the cutting device and the pressing device. An automatic pressing assembly used for limiting and fixing is installed on the workbench. A conveying device used for conveying materials is installed on the workbench, and the conveying device is connected with the pressing device. By means of the mode, materials are automatically limited and clamped through the device, the bottoms of the materials are supported, the materials are prevented from being damaged due to excessive pressure in the cutting process, product waste is avoided, the materials are clamped through rightward movement of the device and cooperation of the device and the second threaded rod, and the situation that the materials fail to be cut and damaged due to position deviation of the materials is avoided; and meanwhile, when the device moves rightwards after cutting is finished, the device automatically moves upwards for avoiding, and the next batch of materials are prevented from being blocked.

Description

Technical Field

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

[0002] As technological appliances have become an indispensable part of our lives, circuit boards are essential to all electrical appliances. As the production demand for electrical appliances continues to expand, mass production of circuit boards can meet product demand. Therefore, professional equipment must be used to separate the produced circuit boards.

[0003] For example, Chinese utility model patent CN220162606U discloses a PCB circuit board cutting device, in which a lead screw is fixed to one side of the second gear, and the lead screw is rotatably connected to the support platform, the lead screw is threadedly connected to the push plate, and the push plate is slidably connected to the top of the support platform. When the lead screw rotates with the second gear, the push plate can slide to the right under the limiting action of the support platform and the lead screw, thereby facilitating the rightward advancement of the circuit board.

[0004] However, it still has the following disadvantages: there is no synchronous clamping and supporting device at the bottom of the circuit board during the cutting and pressing process, which may cause the circuit board to be subjected to excessive pressure during the cutting process, thereby causing damage to the circuit board. At the same time, the circuit board cannot be automatically limited and clamped, which may cause the cutting position to shift.

[0005] Based on this, the utility model designs a circuit board cutting device which is easy to position to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a circuit board cutting device which is easy to position.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A circuit board cutting device that is easy to position comprises a workbench, wherein a pressing and cutting assembly for pressing and cutting materials is installed on the upper end of the workbench;

[0009] The pressing and cutting assembly comprises a cutting device and a pressing device, and the workbench is connected to the cutting device and the pressing device;

[0010] An automatic clamping assembly for limiting and fixing is installed on the workbench;

[0011] A conveying device for transporting materials is installed on the workbench, and the conveying device is connected to the pressing device.

[0012] Furthermore, the cutting device includes a support frame, a motor, a connecting block, a blade and a threaded rod. The support frame is fixedly connected to the right side of the upper end of the workbench, a limiting groove is provided at the lower end of the support frame, a motor is fixedly connected to the rear end of the support frame, a threaded rod is fixedly connected to the output end of the motor, a connecting block is threadedly connected to the outer wall of the threaded rod, a connecting block is slidably connected to the inner wall of the limiting groove, and a blade is rotatably connected to the right end of the connecting block.

[0013] Furthermore, the clamping device includes a cylinder, a support plate 1, a connecting rod, a limit groove 2, a slot hole 1, a tooth plate, a gear, a clamping plate and a limit groove 3. The cylinder is fixedly connected to the right side of the upper end of the workbench, the output end of the cylinder is fixedly connected to the support plate 1, the left end of the support plate 1 is fixedly connected to the connecting rod, the connecting rod is connected to the conveying device, the front and rear ends of the connecting rod are respectively fixedly connected to the tooth plate, the conveying device is provided with a limit groove 2 and a slot hole 1, the connecting rod is slidably connected in the limit groove 2, the middle part of the slot hole 1 is rotatably connected to the gear, the left and right ends of the slot hole 1 are respectively provided with limit grooves 3, the right end limit groove 3 is slidably connected with the tooth plate, the left end limit groove 3 is slidably connected with the clamping plate, and the teeth and gears provided at the opposite ends of the tooth plate and the clamping plate are meshed and connected.

[0014] Furthermore, the automatic clamping assembly includes a clamping device 1 and a driving device, the workbench is connected to the clamping device 1, and the clamping device 1 is connected to the driving device.

[0015] Furthermore, the clamping device 1 includes a support column, a support block 1, a limiting groove 4, a fixed block, a connecting slide block, a sliding groove 2, a connecting and fixing plate, a telescopic rod and a clamping block. The left and right rear ends of the workbench are respectively fixedly connected to the support columns, the upper end of the support column is fixedly connected to the support block 1, the front end of the support block 1 is provided with a limiting groove 4, the limiting groove 4 is slidably connected to the rear end of the connecting slide block, the support block 1 is connected to the driving device, the driving device is connected to the fixed block, the front side of the lower end of the fixed block is fixedly connected to the telescopic rod, the fixed block is provided with a sliding groove 2, the sliding groove 2 is slidably connected to the front end of the connecting slide block, the lower side of the front end of the connecting slide block is fixedly connected to the connecting and fixing plate, the front end of the connecting and fixing plate is fixedly connected to the upper end of the telescopic rod, and the lower end of the telescopic rod is fixedly connected to the clamping block.

[0016] Furthermore, the driving device includes motor three, threaded rod two and support block two. The front side of the right end of support block one is fixedly connected to motor three, the front side of the left end of support block one is fixedly connected to support block two, the output end of motor three is fixedly connected to threaded rod two, the outer wall of threaded rod two is threadedly connected to the fixed block, and the left end of threaded rod two is rotatably connected to support block two.

[0017] Furthermore, the connecting and fixing plate is an L-shaped connecting and fixing plate.

[0018] Furthermore, the conveying device includes a support plate, a conveying track, a pulley 1, a slide groove 1, a belt, a motor 2, a pulley 2, a slot hole 2 and a feed plate. The upper end of the workbench is fixedly connected to the support plates near the four corners, and the opposite ends of the front and rear support plates are fixedly connected to the conveying track, the left end of the bottom of the conveying track is fixedly connected to the motor 2, and the right end of the conveying track is fixedly connected to the feed plate. The right side of the opposite end of the conveying track is respectively provided with a limiting groove 2 and a slot hole 1, the right end of the conveying track is slidably connected to the connecting rod, the middle part of the opposite end of the conveying track is respectively provided with a slide groove 1, the middle part of the lower side of the opposite end of the conveying track is respectively provided with a slot hole 2, the slot hole 2 is connected with the slide groove 1, the left and right ends of the slot hole 2 are respectively rotatably connected with the pulley 2, the left and right ends of the slide groove 1 are respectively rotatably connected with the pulley 1, and the output end of the motor 2 is connected to the pulley 1 and the pulley 2 through a belt drive.

[0019] The utility model has the following technical effects:

[0020] 1. The utility model provides power through the cylinder of the clamping device of the pressing cutting assembly, and drives the supporting plate 1 and the connecting rod to move upward along the direction of the limiting groove 2 through the cylinder, and drives the tooth plate to move upward along the direction of the limiting groove 3 opened in the slot hole 1 through the movement of the connecting rod, and drives the gear to rotate through the movement of the tooth plate, and drives the clamping plate to move downward along the direction of the limiting groove 3 to clamp the material through the rotation of the gear. At this time, the motor 1 on the supporting frame of the cutting device is started, and the threaded rod is driven to rotate through the output end of the motor 1, and the connecting block is driven to move along the direction of the limiting groove 1 through the rotation of the threaded rod, and the blade is driven to cut the material through the movement of the connecting block, and the material is automatically limited and clamped by the device, and the bottom of the material is supported to avoid the material being damaged by excessive pressure during the cutting process, resulting in waste of products.

[0021] The present invention supports the supporting block 1 by the supporting column of the clamping device 1 of the automatic clamping assembly, and the motor 3 of the driving device on the supporting block 1 provides power, and the output end of the motor 3 drives the threaded rod 2 to rotate, and the rotation of the threaded rod 2 drives the fixed block and the connecting slide block to move forward and backward along the limiting groove 4 provided on the supporting block 1, and the connecting slide block drives the sliding groove 2 provided on the fixing block to move up and down through the movement of the connecting slide block, and the connecting fixing plate is driven to move up and down through the movement of the connecting fixing plate, and the telescopic rod is driven to extend and retract through the extension of the telescopic rod, and the clamping block is driven to move up and down through the lower right movement of the clamping block to clamp the material. When the cutting of the device is completed, the fixed block is driven to move to the left through the power provided by the motor 3, and the pressing block is driven to move to the upper left through the pressure of the limiting groove 4, and the material is no longer pressed. The material is clamped by the right movement of the device and the cooperation with the threaded rod 2 to avoid the material position deviation causing the material cutting failure and damage. At the same time, when the device moves to the right after the cutting is completed, it automatically moves up to make way to avoid blocking the next batch of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 The utility model is a three-dimensional circuit board cutting device which is easy to position. Figure 1 ;

[0024] Figure 2 This is a front view of a circuit board cutting device that is easy to position according to the utility model;

[0025] Figure 3 This is a left view of a circuit board cutting device that is easy to position according to the utility model;

[0026] Figure 4 For along Figure 3 AA direction cross-sectional view;

[0027] Figure 5 For along Figure 3 BB direction cross-sectional view;

[0028] Figure 6 For along Figure 2 CC direction cross-sectional view;

[0029] Figure 7 for Figure 4 The enlarged view of point D in the middle;

[0030] Figure 8 for Figure 5 Enlarged view of point E in the middle.

[0031] The numbers in the figure represent:

[0032] 1. Workbench 2. Pressing and cutting assembly 21. Cutting device 22. Pressing device 211. Support frame 212. Motor 1 213. Connecting block 214. Blade 215. Threaded rod 216. Limiting groove 1 221. Cylinder 222. Support plate 1 223. Connecting rod 224. Limiting groove 2 225. Slot 1 226. Tooth plate 227. Gear 228. Clamping plate 229. Limiting groove 3 3. Conveying device 31. Support plate 32. Conveying track 33. Pulley 1 34. Slide 1 35. Belt 36. Motor 2 37. Pulley 2 38. Slot 2 39. Feed plate 4. Automatic clamping assembly 41. Clamping device 1 42. Driving device 411. Support column 412. Support block 1 413. Limiting groove 4 414. Fixed block 415. Connecting slider 416. Slide 2 417. Connecting fixed plate 418. Telescopic rod 419. Clamping block 421. Motor 3 422. Threaded rod 2 423. Support block 2. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model is further described below in conjunction with embodiments.

[0035] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0036] Example 1

[0037] Please refer to the instruction manual Figure 1-8 , a circuit board cutting device convenient for positioning, comprising a workbench 1;

[0038] The upper end of the workbench 1 is provided with a pressing and cutting assembly 2 for pressing and cutting materials, and the pressing and cutting assembly 2 is connected to a conveying device 3;

[0039] The pressing and cutting assembly 2 comprises a cutting device 21 and a pressing device 22, the workbench 1 is connected with the cutting device 21 and the pressing device 22, and the pressing device 22 is connected with the conveying device 3;

[0040] The cutting device 21 includes a support frame 211, a motor 212, a connecting block 213, a blade 214 and a threaded rod 215. The support frame 211 is fixedly connected to the right side of the upper end of the workbench 1, and a limiting groove 216 is provided at the lower end of the support frame 211. The rear end of the support frame 211 is fixedly connected to the motor 212, and the output end of the motor 212 is fixedly connected to the threaded rod 215. The outer wall of the threaded rod 215 is threadedly connected to the connecting block 213, and the inner wall of the limiting groove 216 is slidably connected to the connecting block 213. The right end of the connecting block 213 is rotatably connected to the blade 214;

[0041] The clamping device 22 includes a cylinder 221, a support plate 1 222, a connecting rod 223, a limiting groove 224, a slot 1 225, a tooth plate 226, a gear 227, a clamping plate 228 and a limiting groove 3 229. The cylinder 221 is fixedly connected to the right side of the upper end of the workbench 1, the output end of the cylinder 221 is fixedly connected to the support plate 1 222, the left end of the support plate 1 222 is fixedly connected to the connecting rod 223, the connecting rod 223 is connected to the conveying device 3, and the front and rear ends of the connecting rod 223 are respectively fixedly connected to The tooth plate 226, the conveying device 3 is provided with a limiting groove 224 and a slot hole 225, the limiting groove 224 is slidably connected with a connecting rod 223, the middle of the slot hole 225 is rotatably connected with a gear 227, the left and right ends of the slot hole 225 are respectively provided with limiting grooves 229, the right end limiting groove 229 is slidably connected with the tooth plate 226, and the left end limiting groove 229 is slidably connected with a clamping plate 228, and the teeth provided at the opposite ends of the tooth plate 226 and the clamping plate 228 are meshed and connected with the gear 227;

[0042] In the embodiment of the utility model, when the device starts to cut the material, the cylinder 221 of the pressing device 22 of the pressing cutting assembly 2 provides power, and the cylinder 221 drives the support plate 1 222 and the connecting rod 223 to move upward along the direction of the limiting groove 224, and the movement of the connecting rod 223 drives the tooth plate 226 to move upward along the direction of the limiting groove 3 229 opened in the slot hole 1 225, and the movement of the tooth plate 226 drives the gear 227 to rotate, and the rotation of the gear 227 drives the clamping plate 228 to move along the limiting groove 3 The cutting device 21 is moved downward in the direction of the limit groove 229 to clamp the material. At this time, the motor 212 on the support frame 211 of the cutting device 21 is started, and the threaded rod 215 is driven to rotate by the output end of the motor 212. The connection block 213 is driven to move along the direction of the limit groove 216 by the rotation of the threaded rod 215. The blade 214 is driven to cut the material by the movement of the connection block 213. The material is automatically clamped by the device and the bottom of the material is supported to prevent the material from being damaged by excessive pressure during the cutting process, resulting in waste of products.

[0043] Example 2

[0044] Please refer to the instruction manual Figure 2-6, the workbench 1 is equipped with an automatic clamping assembly 4 for limiting and fixing;

[0045] The automatic clamping assembly 4 includes a clamping device 41 and a driving device 42, the workbench 1 is connected to the clamping device 41, and the clamping device 41 is connected to the driving device 42;

[0046] The clamping device 41 includes a support column 411, a support block 412, a limiting groove 413, a fixing block 414, a connecting slider 415, a sliding groove 416, a connecting fixing plate 417, a telescopic rod 418 and a clamping block 419. The left and right rear ends of the workbench 1 are respectively fixedly connected to the support column 411, the upper end of the support column 411 is fixedly connected to the support block 412, the front end of the support block 412 is provided with a limiting groove 413, and the limiting groove 413 is fitted and slid with the rear end of the connecting slider 415 The support block 1 412 is connected to the driving device 42, the driving device 42 is connected to the fixed block 414, the front side of the lower end of the fixed block 414 is fixedly connected with a telescopic rod 418, the fixed block 414 is provided with a second slide groove 416, the second slide groove 416 is slidably connected to the front end of the connecting slider 415, the lower side of the front end of the connecting slider 415 is fixedly connected with a connecting fixing plate 417, the front end of the connecting fixing plate 417 is fixedly connected to the upper end of the telescopic rod 418, and the lower end of the telescopic rod 418 is fixedly connected with a pressing block 419;

[0047] The driving device 42 includes a motor 3 421, a threaded rod 2 422 and a support block 2 423. The front side of the right end of the support block 1 412 is fixedly connected to the motor 3 421, the front side of the left end of the support block 1 412 is fixedly connected to the support block 2 423, the output end of the motor 3 421 is fixedly connected to the threaded rod 2 422, the outer wall of the threaded rod 2 422 is threadedly connected to the fixing block 414, and the left end of the threaded rod 2 422 is rotatably connected to the support block 2 423;

[0048] Preferably, the connecting and fixing plate 417 is an L-shaped connecting and fixing plate 417;

[0049] The L-shaped connecting and fixing plate 417 is convenient for connecting the connecting slider 415 and the telescopic rod 418 so that they can move in conjunction;

[0050] In the embodiment of the utility model, when the device is ready to clamp the material, the support block 1 412 is supported by the support column 411 of the clamping device 1 41 of the automatic clamping assembly 4, and the motor 3 421 of the driving device 42 on the support block 1 412 provides power, and the threaded rod 2 422 is driven to rotate by the output end of the motor 3 421, and the fixed block 414 and the connecting slide block 415 are driven to move forward and backward along the limiting groove 413 provided on the support block 1 412 through the rotation of the threaded rod 2 422, and the connecting slide block 415 is driven to move up and down in the sliding groove 2 416 provided on the fixed block 414 through the pressure of the support block 1 412, and the movement of the connecting slide block 415 drives The connecting fixed plate 417 moves up and down, and the movement of the connecting fixed plate 417 drives the telescopic rod 418 to extend and retract, and the extension and retraction of the telescopic rod 418 drives the clamping block 419 to move up and down, and the material is clamped by the clamping block 419 moving to the lower right. When the device finishes cutting, the motor three 421 provides power to drive the fixed block 414 to move to the left, and the pressure of the limit slot four 413 drives the clamping block 419 to move to the upper left without pressing the material. The material is clamped by moving the device to the right and cooperating with the threaded rod two 422 to avoid material position deviation causing material cutting failure and damage. At the same time, when the device moves to the right after cutting, it automatically moves up to make way to avoid blocking the next batch of materials.

[0051] The workbench 1 is provided with a conveying device 3 for conveying materials, and the conveying device 3 is connected to the pressing and cutting assembly 2;

[0052] The conveying device 3 includes a support plate 31, a conveying track 32, a pulley 1 33, a slide 1 34, a belt 35, a motor 2 36, a pulley 2 37, a slot 2 38 and a conveying plate 39. The upper end of the workbench 1 is fixedly connected to the support plates 31 near the four corners, and the front and rear end support plates 31 are fixedly connected to the conveying track 32 at the opposite ends. The left end of the bottom of the conveying track 32 is fixedly connected to the motor 2 36, and the right end of the conveying track 32 is fixedly connected to the conveying plate 39. The right side of the opposite end of the conveying track 32 is respectively opened The second limiting groove 224 and the first slot 225, the right end of the conveying track 32 is slidably connected with the connecting rod 223, the middle part of the opposite end of the conveying track 32 is respectively provided with a slide groove 34, and the middle part of the lower side of the opposite end of the conveying track 32 is respectively provided with a second slot 38, the second slot 38 is connected with the slide groove 1 34, the left and right ends of the second slot 38 are respectively rotatably connected with the second pulley 37, the left and right ends of the slide groove 1 34 are respectively rotatably connected with the first pulley 33, and the output end of the second motor 36 is connected with the first pulley 33 and the second pulley 37 through the belt 35.

[0053] In the embodiment of the utility model, when the device starts to transport materials, power is provided by the motor 2 36 of the conveying device 3, and the output end of the motor 2 36 drives the pulley 1 33 and the pulley 2 37 to rotate in the slide groove 1 34 and the slot 2 38 provided on the conveying track 32 through the belt 35, and the conveying track 32 is fixed by the support plate 31, and the cut materials are transported out of the device through the conveying plate 39. The material is automatically transported by the device and the material is automatically transported out of the device at the same time, thereby improving the working efficiency of the device.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circuit board cutting device that is easy to position, comprising a workbench (1), characterized in that: A pressing and cutting assembly (2) for pressing and cutting materials is installed at the upper end of the workbench (1); The pressing and cutting assembly (2) comprises a cutting device (21) and a pressing device (22), and the workbench (1) is connected to the cutting device (21) and the pressing device (22); An automatic clamping assembly (4) for limiting and fixing is installed on the workbench (1); The workbench (1) is provided with a conveying device (3) for conveying materials, and the conveying device (3) is connected to a pressing device (22); The cutting device (21) comprises a support frame (211), a motor (212), a connecting block (213), a blade (214) and a threaded rod (215); the support frame (211) is fixedly connected to the right side of the upper end of the workbench (1); a limiting groove (216) is provided at the lower end of the support frame (211); the rear end of the support frame (211) is fixedly connected to the motor (212); the output end of the motor (212) is fixedly connected to the threaded rod (215); the outer wall of the threaded rod (215) is threadedly connected to the connecting block (213); the inner wall of the limiting groove (216) is slidably connected to the connecting block (213); and the right end of the connecting block (213) is rotatably connected to the blade (214); The clamping device (22) comprises a cylinder (221), a support plate 1 (222), a connecting rod (223), a limiting groove 2 (224), a slot hole 1 (225), a tooth plate (226), a gear (227), a clamping plate (228) and a limiting groove 3 (229). The cylinder (221) is fixedly connected to the right side of the upper end of the workbench (1), the output end of the cylinder (221) is fixedly connected to the support plate 1 (222), the left end of the support plate 1 (222) is fixedly connected to the connecting rod (223), the connecting rod (223) is connected to the conveying device (3), and the front and rear ends of the connecting rod (223) are respectively fixedly connected to the conveying device (3). A tooth plate (226) is connected, and a limiting groove 2 (224) and a slot hole 1 (225) are provided on the conveying device (3). A connecting rod (223) is slidably connected in the limiting groove 2 (224), and a gear (227) is rotatably connected in the middle of the slot hole 1 (225). Limiting grooves 3 (229) are respectively provided at the left and right ends of the slot hole 1 (225). The tooth plate (226) is slidably connected in the right-end limiting groove 3 (229), and a clamping plate (228) is slidably connected in the left-end limiting groove 3 (229). The teeth provided on the opposite ends of the tooth plate (226) and the clamping plate (228) are meshed and connected with the gear (227).

2. The circuit board cutting device for facilitating positioning according to claim 1, characterized in that: The automatic clamping assembly (4) comprises a clamping device (41) and a driving device (42); the workbench (1) is connected to the clamping device (41), and the clamping device (41) is connected to the driving device (42).

3. The circuit board cutting device for facilitating positioning according to claim 2, characterized in that: The clamping device (41) comprises a support column (411), a support block (412), a limiting groove (413), a fixing block (414), a connecting slide block (415), a sliding groove (416), a connecting fixing plate (417), a telescopic rod (418) and a clamping block (419). The rear sides of the left and right ends of the workbench (1) are respectively fixedly connected with the support columns (411), the upper end of the support column (411) is fixedly connected with the support block (412), the front end of the support block (412) is provided with a limiting groove (413), and the limiting groove (413) is in contact with the rear end of the connecting slide block (415). The supporting block 1 (412) is connected to the driving device (42), the driving device (42) is connected to the fixing block (414), the front side of the lower end of the fixing block (414) is fixedly connected with a telescopic rod (418), the fixing block (414) is provided with a second slide groove (416), the second slide groove (416) is slidably connected with the front end of the connecting slide block (415), the lower side of the front end of the connecting slide block (415) is fixedly connected with a connecting fixing plate (417), the front end of the connecting fixing plate (417) is fixedly connected with the upper end of the telescopic rod (418), and the lower end of the telescopic rod (418) is fixedly connected with a pressing block (419).

4. The circuit board cutting device for facilitating positioning according to claim 3, characterized in that: The driving device (42) comprises a motor three (421), a threaded rod two (422) and a support block two (423); the front side of the right end of the support block one (412) is fixedly connected to the motor three (421); the front side of the left end of the support block one (412) is fixedly connected to the support block two (423); the output end of the motor three (421) is fixedly connected to the threaded rod two (422); the outer wall of the threaded rod two (422) is threadedly connected to the fixing block (414); and the left end of the threaded rod two (422) is rotatably connected to the support block two (423).

5. The circuit board cutting device for facilitating positioning according to claim 4, characterized in that: The connecting and fixing plate (417) is an L-shaped connecting and fixing plate (417).

6. The circuit board cutting device for facilitating positioning according to claim 5, characterized in that: The conveying device (3) comprises a support plate (31), a conveying track (32), a pulley (33), a slide groove (34), a belt (35), a motor (36), a pulley (37), a slot (38) and a conveying plate (39). The upper end of the workbench (1) is fixedly connected to the support plates (31) near the four corners, and the front and rear end support plates (31) are fixedly connected to the conveying track (32) at the opposite ends. The left end of the bottom of the conveying track (32) is fixedly connected to the motor (36), and the right end of the conveying track (32) is fixedly connected to the conveying plate (39). The right side of the opposite end of the conveying track (32) is respectively provided with A second limiting groove (224) and a first groove hole (225) are provided, the right end of the conveying track (32) is slidably connected to the connecting rod (223), a first slide groove (34) is respectively provided in the middle of the opposite end of the conveying track (32), a second groove hole (38) is respectively provided in the middle of the lower side of the opposite end of the conveying track (32), the second groove hole (38) is connected to the first slide groove (34), the left and right ends of the second groove hole (38) are respectively rotatably connected to the second pulley (37), the left and right ends of the first slide groove (34) are respectively rotatably connected to the first pulley (33), and the output end of the second motor (36) is connected to the first pulley (33) and the second pulley (37) through a belt (35).

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