Laser cutting board splitting machine for PCB (printed circuit board)

Abstract

The invention is applicable to the technical field of laser board splitting, and provides a laser cutting board splitting machine for a PCB (printed circuit board), which comprises a shell and a laser board splitting module, the laser board splitting module is mounted at the top of an inner cavity of the shell, and the laser cutting board splitting machine further comprises a longitudinal adjusting assembly arranged in the shell and comprising limiting frames symmetrically and rotatably connected to the inner wall of the shell, first gear shafts are rotationally connected to the middles of the inner walls of the limiting frames, and longitudinal limiting plates are symmetrically and slidably connected between the two limiting frames; the embodiment of the invention has the beneficial effects that the torsion of the first spring is released, so that the rotating shaft generates a reverse rotating force and pulls and flattens the PCB towards two sides, thereby avoiding the problem that the PCB is bent and deformed due to long-term stacking and storage and cannot be accurately positioned during laser splitting, and improving the laser splitting efficiency. The PCB is pressed downwards through the multiple rotating shafts, so that a board body is in a stable state in the board splitting process, and the problem that when the edge of the PCB is in a special shape, a common clamp cannot clamp the PCB is solved.

Description

Technical Field

[0001] This invention belongs to the field of laser PCB depaneling technology, and particularly relates to a laser cutting and depaneling machine for PCB circuit boards. Background Technology

[0002] In the electronics manufacturing industry, PCBs are the core components of electronic devices, and the depaneling process directly determines the assembly accuracy, electrical performance, and production efficiency of the products. With the increasing demand for miniaturization and high density in consumer electronics, medical equipment, aerospace, and other fields, PCB structures are becoming increasingly complex. Irregularly shaped boards, multilayer boards, and high-precision PCBs with sensitive components are being used more and more widely, placing stringent requirements on the precision and non-destructive nature of the depaneling process.

[0003] PCB boards are prone to bending and deformation during long-term stacking and storage. Traditional laser depaneling machines mostly use rigid limiting structures for their clamps, which cannot effectively flatten the bent boards, resulting in positioning accuracy deviations and cutting path offsets during depaneling. At the same time, for PCB boards with irregular edge structures, ordinary clamps are difficult to achieve stable clamping, and the boards are prone to shaking during depaneling, further affecting cutting accuracy.

[0004] After laser cutting, the segmented areas of the PCB board are prone to sticking together due to cooling. Traditional equipment lacks an active splitting mechanism, resulting in high PCB board loss during the splitting process before later use. At the same time, in order to avoid damage to the PCB board surface circuits and chips caused by direct laser irradiation, the board needs to be flipped for cutting. The existing equipment's flipping mechanism and limiting structure interfere with each other, and the board is prone to displacement during the flipping process, making it difficult to ensure the consistency of the cutting path on both sides. Summary of the Invention

[0005] The purpose of this invention is to provide a laser cutting and separating machine for PCB circuit boards, which aims to solve the technical problems existing in the prior art mentioned in the background.

[0006] The present invention is implemented as follows: a laser cutting and separating machine for PCB circuit boards includes a housing and a laser separating module, wherein the laser separating module is installed at the top of the inner cavity of the housing, and further includes: A longitudinal adjustment assembly is disposed inside the housing. The longitudinal adjustment assembly includes a limiting frame symmetrically rotatably connected to the inner wall of the housing. A first toothed shaft is rotatably connected to the middle of the inner wall of each limiting frame. A longitudinal limiting plate is symmetrically slidably connected between the two limiting frames. The first toothed shafts on the end sides of the longitudinal limiting plates mesh with each other. A dispensing groove is opened in the middle of the upper surface of the longitudinal limiting plate. An anti-slip plate is fixedly connected to the bottom of the dispensing groove. Guide grooves are opened inside the longitudinal limiting plates and on both sides of the dispensing groove. An auxiliary extension mechanism is slidably engaged inside the guide grooves. A lateral adjustment component, located inside the housing, is used to laterally limit and rotate the PCB board within the housing. The auxiliary support component is located inside the housing and is used to provide auxiliary support for the bottom of the PCB board that is suspended.

[0007] As a preferred technical solution of the present invention: the auxiliary extension mechanism includes a guide slide slidably connected inside the guide groove, the top of the guide slide having a round hole, a support rod fixedly connected to the side of the guide slide near the delivery groove, a rotating shaft rotatably connected to the side of the support rod near the delivery groove, a threaded groove being formed on the outer wall of the rotating shaft, a partition plate being fixedly connected to the outer wall of the support rod, a first spring being fixedly connected between the partition plate and the rotating shaft, and a protective plate being fixedly connected to the top of the side of the guide slide near the rotating shaft, the top of the protective plate having a transverse groove.

[0008] As another preferred technical solution of the present invention: when the first spring is not under force, the opening of the threaded groove on the shaft end side is opposite to the transverse groove.

[0009] As another preferred technical solution of the present invention: the lateral adjustment component includes a drive gear shaft symmetrically rotatably connected to the bottom of the inner cavity of the housing, a worm gear fixedly connected to one end of the drive gear shaft, a transmission gear disk rotatably connected to the bottom of the inner cavity of the housing, the transmission gear disk meshing with the worm gear, cylinders symmetrically installed on the side wall of the inner cavity of the housing, a toothed ring slidably engaged at the telescopic end of the cylinder, and the toothed ring meshing with the drive gear shaft.

[0010] As another preferred technical solution of the present invention: a mounting plate is fixedly connected inside the toothed ring, a first slide is horizontally slidably connected to the middle of the mounting plate, a second spring is fixedly connected between the first slide and the mounting plate, baffles are fixedly connected to both ends of the side of the mounting plate near the mounting plate, a clamping plate is vertically and symmetrically slidably connected to the mounting plate, a rotating plate is symmetrically rotatably connected to the side wall of the mounting plate, a third spring is fixedly connected between the rotating plate and the mounting plate, a sliding groove is provided on the rotating plate, and the sliding groove is slidably engaged with a fixed seat fixedly connected to the side wall of the clamping plate.

[0011] As another preferred technical solution of the present invention: the side of the baffle away from the first slide is slidably engaged with the surface of the rotating plate; the first slide and the mounting plate are coplanar when the second spring is not under force; and the rotating plate is tilted when the third spring is not under force.

[0012] As another preferred technical solution of the present invention: a limiting frame is slidably connected to the surface of the mounting plate, a fourth spring is fixedly connected between the limiting frame and the mounting plate, a bracket is symmetrically rotatably connected to the limiting frame, a sliding rod is slidably connected to the end of the bracket away from the limiting frame, and a fifth spring is fixedly connected between the sliding rod and the bracket.

[0013] As another preferred technical solution of the present invention: the bottom of the slide rod is coated with a magnetic coating, the bottom of the slide rod is attached to the surface of the longitudinal limiting plate, the slide rod is adapted to the round hole, the transverse groove and the threaded groove, and the bottom of the round hole is coated with a magnetic coating opposite to the magnetic pole of the slide rod.

[0014] As another preferred technical solution of the present invention: the auxiliary support assembly includes a sleeve fixedly connected to the middle of the transmission gear disk, a square rod slidably connected inside the outer shell, a reciprocating screw fixedly connected to the top of the square rod and slidingly engaging with the sleeve, a support fixedly connected to the top of the reciprocating screw, a first gear disk rotatably connected to the top of the support, a drive gear meshing with the first gear disk installed on the side wall of the support, a support arm slidably connected evenly inside the support, a support plate fixedly connected to the end of the support arm away from the support, a guide block fixedly connected to the upper surface of the support arm and the side inside the support, and a limiting groove slidably engaging with the guide block on the first gear disk.

[0015] The beneficial effects of this invention are as follows: The release of the first spring torque causes the rotating shaft to generate a reverse rotational force, pulling and flattening the PCB board to both sides. This avoids the problem of PCB boards bending and deforming due to long-term stacking and storage, preventing accurate positioning during laser separation. Multiple rotating shafts press down on the PCB board, keeping it stable during separation and preventing the inability of ordinary clamps to clamp irregularly shaped PCBs, thus improving the equipment's positioning capability for different PCBs. The simultaneous meshing and reverse rotation of two geared rings with the transmission gear plate causes the cut PCB board to twist, facilitating its separation and preventing the boards from sticking together due to cooling after laser separation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the outer shell provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the overall structure of the longitudinal adjustment component provided in an embodiment of the present invention; Figure 4 This is an exploded view of the longitudinal adjustment component structure provided in an embodiment of the present invention; Figure 5This is a schematic diagram of the overall structure of the auxiliary extension mechanism provided in an embodiment of the present invention; Figure 6 This is a partial schematic diagram of the lateral adjustment component structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the overall toothed ring structure provided in an embodiment of the present invention; Figure 8 Provided for embodiments of the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 This is an exploded view of the lateral adjustment component structure provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the overall structure of the auxiliary support component provided in an embodiment of the present invention; Figure 11 Provided for embodiments of the present invention Figure 10 Enlarged schematic diagram of the structure at point B; Figure 12 This is an exploded view of the auxiliary support component structure provided in an embodiment of the present invention.

[0017] In the picture: 1. Outer shell; 2. Laser separation module; 3. Vertical adjustment assembly; 4. Horizontal adjustment assembly; 5. Auxiliary support assembly; 31. Limiting frame; 32. First gear shaft; 33. Longitudinal limiting plate; 34. Dispensing slot; 35. Guide slot; 36. Anti-slip plate; 37. Auxiliary extension mechanism; 41. Drive gear shaft; 42. Worm gear; 43. Transmission gear plate; 44. Cylinder; 45. Gear ring; 46. Mounting plate; 47. First slide; 48. Second spring; 49. Baffle; 410. Clamping plate; 411. Rotating plate; 412. Third spring; 413. Slide groove; 414. Fixed seat; 51. Sleeve; 52. Square rod; 53. Reciprocating lead screw; 54. Support; 55. Drive gear; 56. Support arm; 57. Support plate; 58. Guide block; 59. First gear plate; 510. Limiting groove; 371. Guide carriage; 372. Round hole; 373. Support rod; 374. Rotating shaft; 375. Threaded groove; 376. Partition plate; 377. First spring; 378. Guard plate; 379. Horizontal groove; 461. Limiting bracket; 462. Fourth spring; 463. Bracket; 464. Slide rod; 465. Fifth spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0020] like Figures 1 to 5 As shown, in one embodiment, a laser cutting and separating machine for PCB circuit boards is proposed, including a housing 1 and a laser separating module 2, the laser separating module 2 being installed at the top of the inner cavity of the housing 1, and further including: The longitudinal adjustment component 3 is disposed inside the outer shell 1. The longitudinal adjustment component 3 includes a limiting frame 31 symmetrically rotatably connected to the inner wall of the outer shell 1. A first gear shaft 32 is rotatably connected to the middle of the inner wall of the limiting frame 31. A longitudinal limiting plate 33 is symmetrically slidably connected between the two limiting frames 31. The first gear shaft 32 on the end side of the longitudinal limiting plate 33 meshes with each other. An injection groove 34 is opened in the middle of the upper surface of the longitudinal limiting plate 33. An anti-slip plate 36 is fixedly connected to the bottom of the injection groove 34. Guide grooves 35 are opened inside the longitudinal limiting plate 33 and on both sides of the injection groove 34. An auxiliary extension mechanism 37 is slidably fitted inside the guide groove 35. The lateral adjustment component 4 is located inside the housing 1 and is used to laterally limit and rotate the PCB board inside the housing 1. The auxiliary support component 5 is located inside the housing 1 and is used to provide auxiliary support for the bottom of the PCB board that is suspended.

[0021] In practical application, the operator places the PCB board to be laser-separated on the delivery slots 34 of the two longitudinal limiting plates 33. Then, the first gear shaft 32 is activated to bring the two longitudinal limiting plates 33 closer together, thus initially limiting the PCB board on the longitudinal limiting plates 33. When the PCB board needs to be flipped, the driving device drives the longitudinal limiting plates 33 to rotate. The longitudinal limiting plates 33 will rotate synchronously due to the limiting of the limiting frame 31 and the first gear shaft 32.

[0022] When the lateral adjustment component 4 is relatively close to the PCB board for lateral restriction, the auxiliary extension mechanism 37 will be pushed by the lateral adjustment component 4 and slide inside the guide groove 35. When the auxiliary extension mechanism 37 slides inside the guide groove 35, it will descend towards the bottom of the longitudinal limiting plate 33, so that the surface of the auxiliary extension mechanism 37 is pressed against the upper surface of the PCB board placed inside the delivery groove 34, so that there is a large friction between the PCB board and the auxiliary extension mechanism 37.

[0023] like Figure 5 As shown, in a preferred embodiment of the present invention, the auxiliary extension mechanism 37 includes a guide slide 371 slidably connected inside the guide groove 35. The top of the guide slide 371 has a round hole 372. A support rod 373 is fixedly connected to the side of the guide slide 371 near the delivery groove 34. A rotating shaft 374 is rotatably connected to the side of the support rod 373 near the delivery groove 34. A threaded groove 375 is provided on the outer wall of the rotating shaft 374. A partition plate 376 is fixedly connected to the outer wall of the support rod 373. A first spring 377 is fixedly connected between the partition plate 376 and the rotating shaft 374. A guard plate 378 is fixedly connected to the top of the side of the guide slide 371 near the rotating shaft 374. A transverse groove 379 is provided on the top of the guard plate 378.

[0024] In practical application, when the fourth spring 462 slides on the upper surface of the longitudinal limiting plate 33, it will be attracted to the inside of the round hole 372 at the top of the guide slide 371. This causes the fourth spring 462 to move along with the guide slide 371. As the guide slide 371 moves, it drives the rotating shaft 374 to move via the support rod 373, thus pressing down on the upper surface of the PCB board. When the guide slide 371 reaches its end, the fourth spring 462 will disengage from the magnetic attraction of the round hole 372 and retract into the protective plate 378. The fourth spring 462 slides on the transverse groove 379. When the fourth spring 462 slides into the threaded groove 375 of the rotating shaft 374, the sliding of the fourth spring 462 in the threaded groove 375 will cause the rotating shaft 374 to rotate. The first spring 377 will twist and generate torque. When the fourth spring 462 disengages from the threaded groove 375, the torque of the first spring 377 will be released and the rotating shaft 374 will generate a force to rotate in the opposite direction. At this time, because the rotating shaft 374 presses down on the top of the PCB board and has friction, the rotation of the rotating shaft 374 will cause the PCB board to be stretched to both sides and flattened.

[0025] The torque release of the first spring 377 causes the rotating shaft 374 to generate a reverse rotation force, pulling the PCB board to both sides to flatten it. This avoids the problem of bending and deformation of the PCB board due to long-term stacking and storage, which makes it difficult to accurately position it during laser separation. The downward pressure of multiple rotating shafts 374 keeps the PCB board in a stable state during the separation process, avoiding the problem that ordinary fixtures cannot clamp the PCB board when the edges are irregular, thus improving the positioning capability of the equipment for different PCB boards.

[0026] like Figure 5 As shown, in another preferred embodiment of the present invention, when the first spring 377 is not under force, the opening of the threaded groove 375 on the end side of the rotating shaft 374 is aligned with the transverse groove 379.

[0027] like Figure 6As shown, in another preferred embodiment of the present invention, the lateral adjustment component 4 includes a drive gear shaft 41 symmetrically rotatably connected to the bottom of the inner cavity of the outer shell 1. A worm gear 42 is fixedly connected to the end side of the drive gear shaft 41 on one side. A transmission gear disk 43 is rotatably connected to the bottom of the inner cavity of the outer shell 1. The transmission gear disk 43 meshes with the worm gear 42. Cylinders 44 are symmetrically installed on the side wall of the inner cavity of the outer shell 1. A toothed ring 45 is slidably fitted to the telescopic end of the cylinder 44. The toothed ring 45 meshes with the drive gear shaft 41.

[0028] In practical application, when the two cylinders 44 extend, they push the gear rings 45 closer together. The drive gear shaft 41 engages with one side of the gear ring 45, causing the gear ring 45 to rotate the PCB board inside the housing 1. When the gear ring 45 slides on the drive gear shaft 41 and engages with the transmission gear disk 43, the worm gear 42 will drive the transmission gear disk 43 to rotate through engagement with the transmission gear disk 43. The gear rings 45 on both sides will rotate in opposite directions due to their simultaneous engagement with the transmission gear disk 43, thereby causing the PCB board body after cutting to twist, making the PCB board easier to separate and avoiding the problem of the board body not being separated in time after laser separation and cooling and sticking together.

[0029] like Figures 6 to 9 As shown, in another preferred embodiment of the present invention, a mounting plate 46 is fixedly connected inside the toothed ring 45. A first slide 47 is horizontally slidably connected to the middle of the mounting plate 46. A second spring 48 is fixedly connected between the first slide 47 and the mounting plate 46. Baffles 49 are fixedly connected to both ends of the side of the mounting plate 46 near the mounting plate 46. A clamping plate 410 is vertically and symmetrically slidably connected to the mounting plate 46. A rotating plate 411 is symmetrically rotatably connected to the side wall of the mounting plate 46. A third spring 412 is fixedly connected between the rotating plate 411 and the mounting plate 46. A sliding groove 413 is provided on the rotating plate 411. The sliding groove 413 is slidably engaged with the fixing seat 414 fixedly connected to the side wall of the clamping plate 410.

[0030] In practical application, the cylinder 44 extends and pushes the two toothed rings 45 to slide relative to each other. After the toothed rings 45 slide relative to each other to the edge of the PCB board, the first slide 47 will level the edge of the PCB board. Then, the mounting plate 46 continues to move, which will cause the edge of the PCB board to squeeze the first slide 47, causing the first slide 47 to slide inside the mounting plate 46. The second spring 48 is compressed and elastically contracts. The baffle 49 will squeeze the rotating plate 411 during the process of sliding together with the first slide 47, causing the rotating plate 411 to rotate on the side wall of the mounting plate 46. After the rotating plate 411 rotates, it will drive the clamping plate 410 to slide relative to the mounting plate 46 through the sliding cooperation of the slide groove 413 and the fixed seat 414. After the clamping plate 410 slides, it clamps the edge of the PCB board vertically, preventing the problem of the board edge lifting due to local heating of the PCB board caused by laser separation, so that the PCB board is in a stable state during the laser separation process.

[0031] like Figure 7 and Figure 8 As shown, in another preferred embodiment of the present invention, the side of the baffle 49 away from the first slide 47 is slidably engaged with the surface of the rotating plate 411. When the second spring 48 is not under force, the first slide 47 and the mounting plate 46 are coplanar. When the third spring 412 is not under force, the rotating plate 411 is in an inclined state.

[0032] like Figure 9 As shown, in another preferred embodiment of the present invention, a limiting frame 461 is slidably connected to the surface of the mounting plate 46, a fourth spring 462 is fixedly connected between the limiting frame 461 and the mounting plate 46, a bracket 463 is symmetrically rotatably connected to the limiting frame 461, a slide rod 464 is slidably connected to one end of the bracket 463 away from the limiting frame 461, and a fifth spring 465 is fixedly connected between the slide rod 464 and the bracket 463.

[0033] In practical application, during the transverse movement of the toothed ring 45, the limiting frame 461 will move together with the mounting plate 46. The limiting frame 461 will limit the two longitudinal limiting plates 33. The bracket 463 will always keep the sliding rod 464 in contact with the surface of the longitudinal limiting plate 33. When the longitudinal limiting plates 33 are relatively close, the sliding rod 464 will disengage from the surface of the longitudinal limiting plate 33. At this time, the compressed fifth spring 465 will elastically recover, causing the sliding rod 464 to slide in the bracket 463 towards the side closer to the longitudinal limiting plate 33.

[0034] like Figure 9 and Figure 10 As shown, in a preferred embodiment of the present invention, the bottom of the slide bar 464 is coated with a magnetic coating, the bottom of the slide bar 464 is attached to the surface of the longitudinal limiting plate 33, the slide bar 464 is adapted to the round hole 372, the transverse groove 379 and the threaded groove 375, and the bottom of the round hole 372 is coated with a magnetic coating opposite to the magnetic pole of the slide bar 464.

[0035] like Figures 10 to 12 As shown, in another preferred embodiment of the present invention, the auxiliary support assembly 5 includes a sleeve 51 fixedly connected to the middle of the transmission gear disk 43, a square rod 52 slidably connected inside the outer shell 1, a reciprocating screw 53 that slides with the sleeve 51 fixedly connected to the top of the square rod 52, a support 54 fixedly connected to the top of the reciprocating screw 53, a first gear disk 59 rotatably connected to the top of the support 54, a drive gear 55 that meshes with the first gear disk 59 installed on the side wall of the support 54, a support arm 56 uniformly slidably connected inside the support 54, a support plate 57 fixedly connected to the end of the support arm 56 away from the support 54, a guide block 58 fixedly connected to the upper surface of the support arm 56 and the side inside the support 54, and a limiting groove 510 that slides with the guide block 58 is provided on the first gear disk 59.

[0036] In practical applications, when the PCB board needs to be flipped, the drive gear shaft 41 rotates and meshes with the gear ring 45 to rotate together, thereby flipping the PCB board. During the rotation of the drive gear shaft 41, the worm gear 42 drives the transmission gear plate 43 and the sleeve 51 to rotate together. When the sleeve 51 rotates, it slides with the outer wall of the reciprocating screw 53, causing the square rod 52 and the reciprocating screw 53 to slide downward inside the housing 1. This ensures that the auxiliary support assembly 5 does not obstruct the longitudinal limiting plate 33 during the rotation of the gear ring 45. When the two longitudinal limiting plates 33 are in a vertical state, the reciprocating screw 53 slides into the inside of the housing 1. When the two longitudinal limiting plates 33 are in a horizontal state, the reciprocating screw 53 slides into the inner cavity of the housing 1 and supports the bottom of the PCB board.

[0037] The vision module on the laser separation module 2 scans the PCB board separation route before laser cutting. After scanning, the device flips the PCB board so that the laser separation module 2 cuts from the back of the board, thereby reducing damage to the circuits and chips on the PCB board caused by high temperature. The vision module on the laser separation module 2 also links with the drive gear 55 according to the area of ​​different PCB boards. When the PCB board is large, the drive gear 55 will rotate and drive the first gear 59 to mesh and rotate together. When the first gear 59 rotates, the sliding cooperation of the limiting groove 510 and the guide block 58 causes the support arm 56 to slide outward inside the support 54, thereby adjusting the support distance of the support plate 57 at the bottom of the PCB board, so that the support force of multiple support plates 57 at the bottom of the PCB board is more uniform.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting and separating machine for PCB circuit boards, comprising a housing (1) and a laser separating module (2), wherein the laser separating module (2) is mounted on the top of the inner cavity of the housing (1), characterized in that, Also includes: A longitudinal adjustment component (3) is disposed inside the outer shell (1). The longitudinal adjustment component (3) includes a limiting frame (31) symmetrically rotatably connected to the inner wall of the outer shell (1). A first gear shaft (32) is rotatably connected to the middle of the inner wall of the limiting frame (31). A longitudinal limiting plate (33) is symmetrically slidably connected between the two limiting frames (31). The first gear shaft (32) on the end side of the longitudinal limiting plate (33) meshes with each other. A delivery groove (34) is opened in the middle of the upper surface of the longitudinal limiting plate (33). An anti-slip plate (36) is fixedly connected to the bottom of the delivery groove (34). A guide groove (35) is opened inside the longitudinal limiting plate (33) and on both sides of the delivery groove (34). An auxiliary extension mechanism (37) is slidably engaged inside the guide groove (35). A lateral adjustment component (4) is set inside the housing (1) for laterally limiting and flipping the PCB board inside the housing (1); The auxiliary support component (5) is set inside the housing (1) and is used to provide auxiliary support for the bottom of the PCB board in the air.

2. The laser cutting and separating machine for PCB circuit boards according to claim 1, characterized in that, The auxiliary extension mechanism (37) includes a guide slide (371) slidably connected inside the guide groove (35). The top of the guide slide (371) is provided with a round hole (372). A support rod (373) is fixedly connected to the side of the guide slide (371) near the delivery groove (34). A rotating shaft (374) is rotatably connected to the side of the support rod (373) near the delivery groove (34). A threaded groove (375) is provided on the outer wall of the rotating shaft (374). A partition plate (376) is fixedly connected to the outer wall of the support rod (373). A first spring (377) is fixedly connected between the partition plate (376) and the rotating shaft (374). A guard plate (378) is fixedly connected to the top of the side of the guide slide (371) near the rotating shaft (374). A transverse groove (379) is provided on the top of the guard plate (378).

3. A laser cutting and separating machine for PCB circuit boards according to claim 2, characterized in that, When the first spring (377) is not under force, the opening of the threaded groove (375) on the end side of the rotating shaft (374) is opposite to the transverse groove (379).

4. A laser cutting and separating machine for PCB circuit boards according to claim 1, characterized in that, The lateral adjustment assembly (4) includes a drive gear shaft (41) symmetrically rotatably connected to the bottom of the inner cavity of the outer shell (1). A worm gear (42) is fixedly connected to one end of the drive gear shaft (41). A transmission gear disk (43) is rotatably connected to the bottom of the inner cavity of the outer shell (1). The transmission gear disk (43) meshes with the worm gear (42). A cylinder (44) is symmetrically installed on the side wall of the inner cavity of the outer shell (1). A toothed ring (45) is slidably fitted to the telescopic end of the cylinder (44). The toothed ring (45) meshes with the drive gear shaft (41).

5. A laser cutting and separating machine for PCB circuit boards according to claim 4, characterized in that, The toothed ring (45) is internally fixedly connected to a mounting plate (46). A first slide (47) is horizontally slidably connected to the middle of the mounting plate (46). A second spring (48) is fixedly connected between the first slide (47) and the mounting plate (46). Baffles (49) are fixedly connected to both ends of the side of the mounting plate (46) near the mounting plate (46). A clamping plate (410) is vertically and symmetrically slidably connected to the mounting plate (46). A rotating plate (411) is symmetrically rotatably connected to the side wall of the mounting plate (46). A third spring (412) is fixedly connected between the rotating plate (411) and the mounting plate (46). A sliding groove (413) is provided on the rotating plate (411). The sliding groove (413) is slidably engaged with a fixed seat (414) fixedly connected to the side wall of the clamping plate (410).

6. A laser cutting and separating machine for PCB circuit boards according to claim 5, characterized in that, The side of the baffle (49) away from the first slide (47) slides in cooperation with the surface of the rotating plate (411). When the second spring (48) is not under force, the first slide (47) and the mounting plate (46) are coplanar. When the third spring (412) is not under force, the rotating plate (411) is tilted.

7. A laser cutting and separating machine for PCB circuit boards according to claim 5, characterized in that, A limiting frame (461) is slidably connected to the surface of the mounting plate (46). A fourth spring (462) is fixedly connected between the limiting frame (461) and the mounting plate (46). A bracket (463) is symmetrically rotatably connected to the limiting frame (461). A sliding rod (464) is slidably connected to one end of the bracket (463) away from the limiting frame (461). A fifth spring (465) is fixedly connected between the sliding rod (464) and the bracket (463).

8. A laser cutting and separating machine for PCB circuit boards according to claim 7, characterized in that, The bottom of the slide rod (464) is coated with a magnetic coating. The bottom of the slide rod (464) is attached to the surface of the longitudinal limiting plate (33). The slide rod (464) is adapted to the round hole (372), the transverse groove (379) and the threaded groove (375). The bottom of the round hole (372) is coated with a magnetic coating opposite to the magnetic pole of the slide rod (464).

9. A laser cutting and separating machine for PCB circuit boards according to claim 4, characterized in that, The auxiliary support assembly (5) includes a sleeve (51) fixedly connected to the middle of the transmission gear disk (43), a square rod (52) slidably connected inside the outer shell (1), a reciprocating screw (53) that slides with the sleeve (51) fixedly connected to the top of the square rod (52), a support (54) fixedly connected to the top of the reciprocating screw (53), a first gear disk (59) rotatably connected to the top of the support (54), a drive gear (55) that meshes with the first gear disk (59) installed on the side wall of the support (54), a support arm (56) slidably connected inside the support (54), a support plate (57) fixedly connected to one end of the support arm (56) away from the support (54), a guide block (58) fixedly connected to the upper surface of the support arm (56) and one side located inside the support (54), and a limiting groove (510) that slides with the guide block (58) is provided on the first gear disk (59).

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