Laser cutting machine tool with positioning function and positioning method thereof

Abstract

The present invention relates to the technical field of laser cutting machine tools, and discloses a laser cutting machine tool with a positioning function, including a laser cutting machine tool, a shell is arranged on the top of the laser cutting machine tool, and a positioning device is arranged inside the shell. The laser cutting machine tool with a positioning function and its positioning method can adjust the position of the laser cutting head on the Y axis under a series of transmissions, and can also use a control device to control the second motor, drive the second motor to rotate, thereby driving the screw to rotate, so that the threaded sleeve can move along the surface of the screw, thereby driving the laser cutting head on the connecting rod and its side to move horizontally, and can adjust the position of the laser cutting head on the X axis, and use the control device to control, the accuracy is better, so that the laser cutting head of the laser cutting machine tool has a good positioning effect when adjusting, the user can accurately control, the processing accuracy of the top of the plate is good during cutting, and the effect is good when in use.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting machine tools, in particular to a laser cutting machine tool with a positioning function and a positioning method thereof. Background Art

[0002] It is often necessary to cut the plate during mechanical processing. Common cutting methods include manual cutting, CNC cutting machine cutting, and semi-automatic cutting machine cutting. Relatively speaking, the CNC automatic cutting machine has high cutting quality and efficiency, can greatly reduce the labor intensity of the operator, and is a more ideal cutting method. At present, manual cutting and semi-automatic cutting methods are still relatively common in some small and medium-sized enterprises in my country and even in some large enterprises. Laser cutting is an important processing method in the process of plate cutting. Compared with traditional cutting methods, laser cutting has the characteristics of high speed, high precision and high adaptability. It also has the advantages of fine cutting seams, small heat-affected zone, good cutting surface quality, no noise during cutting, easy automation of the cutting process, and low processing cost. Therefore, it is widely used in engineering.

[0003] However, the laser cutting head of the above-mentioned laser cutting machine has a poor positioning effect during adjustment, and the user cannot precisely control it, resulting in poor processing accuracy of the top of the plate during cutting and poor effect during use, which needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a laser cutting machine tool with a positioning function and a positioning method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a laser cutting machine with a positioning function, comprising a laser cutting machine, a shell is arranged on the top of the laser cutting machine, a positioning device is arranged inside the shell, a laser cutting head is arranged at the bottom of the positioning device, an auxiliary device is arranged on the top of the laser cutting machine, a placing device is arranged on the top of the laser cutting machine, a control device is connected to the left side of the laser cutting machine, and a signal of the control device is connected to a first motor.

[0006] The positioning device includes a first motor, a first gear, a rotating rod, a second gear, a connecting frame, a limiting seat, a first connecting plate, a screw, a second motor, a limiting sliding rod, a threaded sleeve, a second connecting plate, a connecting rod and an open groove. The first motor is fixedly connected to the top of the laser cutting machine, the first gear is fixedly connected to the output shaft of the first motor, the second gear meshes with the first gear, the rotating rod is fixedly connected to the inside of the second gear, the limiting seat is fixedly connected to the inner top of the shell, the rotating rod is slidably connected to the inner wall of the limiting seat, the connecting frame is fixedly connected to the surface of the rotating rod, the first connecting plate is fixedly connected to the surface of the rotating rod, the second motor is fixedly connected to the right side of the first connecting plate, the screw is fixedly connected to the output shaft of the second motor, and the threaded sleeve is threadedly connected to the surface of the screw.

[0007] Preferably, the auxiliary device includes a driving motor, a connecting shell, a slide, a slide, a connecting platform, a limit frame, a second screw, a second threaded sleeve, a connecting plate, and a limit connecting slide. The driving motor is fixedly connected to the top of the laser cutting machine, the connecting shell is fixedly connected to the top of the laser cutting machine, the second screw is fixedly connected to the output shaft of the driving motor, the second threaded sleeve is threadedly connected to the surface of the second screw, the slide is fixedly connected to the top of the laser cutting machine, the slide is fixedly connected to the top of the slide, the connecting platform is fixedly connected to the left side of the second threaded sleeve, the connecting platform is slidably connected to the top of the slide, and the connecting plate is fixedly connected to the right side of the second threaded sleeve.

[0008] Preferably, the placing device comprises an intermediate partition frame and a suction cup, wherein the intermediate partition frame is fixedly connected to the top of the laser cutting machine, and the suction cup is fixedly connected to the top of the laser cutting machine.

[0009] Preferably, a bearing is fixedly connected to the left side of the top of the laser cutting machine, the rotating rod is fixedly connected to the inner ring of the bearing, the left side of the second connecting plate is fixedly connected to a connecting bearing, and the screw is fixedly connected to the inner ring of the connecting bearing. By providing bearings and connecting bearings, the rotating rod and the screw can be driven to rotate internally, thereby ensuring the normal use of the positioning device.

[0010] Preferably, a placement groove is provided on the inner right side of the connecting shell, the limiting connecting slide bar is fixedly connected to the inner wall of the placement groove, the connecting plate is slidably connected to the surface of the limiting connecting slide bar, and the connecting plate is slidably connected to the inner wall of the placement groove. By providing the placement groove, the placement groove plays the role of placing the limiting connecting slide bar, and the connecting plate is slidably connected to the surface of the limiting connecting slide bar, which can be limited and increase the sliding stability of the connecting plate.

[0011] Preferably, a limited circular hole is opened inside the threaded sleeve, the limited sliding rod is fixedly connected to the right side of the first connecting plate near the bottom, the threaded sleeve is slidably connected to the surface of the limited sliding rod, the second connecting plate is fixedly connected to the surface of the connecting frame near the right side, the connecting rod is fixedly connected to the right side of the threaded sleeve near the bottom, the cutting head is fixedly connected to the right side of the connecting rod, and the opening groove is opened at the bottom of the shell.

[0012] Preferably, a rectangular through slot is provided on the left side of the connecting shell, and the connecting platform is slidably connected to the inner wall of the rectangular through slot. By providing the rectangular through slot, the connecting platform can pass through the left side of the connecting shell, driving the connecting platform to move along the top of the slide, ensuring that the device can be used properly.

[0013] A positioning method for a laser cutting machine tool, which is implemented based on any of the above-mentioned laser cutting machines, comprises the following steps:

[0014] S1: Adjust the laser cutting head position

[0015] During use, the first motor is regulated by the control device, so that the first motor rotates and the rotation angle of the first motor is adjusted, thereby driving the first gear to rotate. The rotation of the first gear drives the meshing second gear to rotate, thereby driving the rotating rod to rotate, and the rotation of the rotating rod drives the surface connecting frame to rotate, driving the connecting frame to rotate in a fan shape, thereby adjusting the position of the laser cutting head on the Y-axis. At the same time, the control device can also be used to regulate the second motor to drive the second motor to rotate, thereby driving the screw to rotate, so that the threaded sleeve can move along the surface of the screw, thereby driving the connecting rod and the laser cutting head on its side to move horizontally, and the position of the laser cutting head can be adjusted on the X-axis. The control device is used for regulation, and the accuracy is better.

[0016] S2: Plate limit

[0017] When in use, start the driving motor to drive the second screw to rotate, drive the second threaded sleeve to slide along the surface of the second screw, and the second threaded sleeve drives the right connecting plate to slide against the inner wall of the placement groove when moving, which can increase the sliding stability of the connecting plate, and the second threaded sleeve drives the connecting platform to slide against the top of the slide, thereby driving the limit frame to move backward, and the same equipment is provided on the left side, except that the limit frame on the left side is located close to the back of the laser cutting machine. When in use, start the driving motor to drive the two limit frames to move toward the center, that is, move towards each other for limiting.

[0018] S3: Placing of plates

[0019] When in use, place the plate on the top of the laser cutting machine, between the middle partition frame and the limit frame, and fit on the top of the suction cup to place the plate.

[0020] Compared with the prior art, the present invention provides a laser cutting machine tool with positioning function and a positioning method thereof, which has the following beneficial effects:

[0021] 1. The laser cutting machine with positioning function and the positioning method thereof are provided with a positioning device, the motor is started and the rotation angle of the motor is adjusted, so that the position of the laser cutting head on the Y-axis is adjusted under a series of transmissions, and the second motor can also be regulated by the control device to drive the second motor to rotate, thereby driving the screw to rotate, so that the threaded sleeve can move along the surface of the screw, thereby driving the laser cutting head on the connecting rod and the side thereof to move horizontally, and the position of the laser cutting head can be adjusted on the X-axis, and the regulation device is used for regulation with better accuracy, so that the laser cutting head of the laser cutting machine has a good positioning effect when adjusted, the user can accurately regulate, the processing accuracy of the top of the plate is good during cutting, and the effect is good during use.

[0022] 2. The laser cutting machine with positioning function and its positioning method, when in use, start the driving motor to drive the connecting table to slide against the top of the slide, thereby driving the limit frame to move, and the same equipment is provided on the left side, except that the limit frame on the left side is located close to the back of the laser cutting machine. When in use, start the driving motor to drive the two limit frames to move toward the center, that is, move towards each other for limiting.

[0023] 3. When using the laser cutting machine with positioning function and the positioning method thereof, the plate is placed on the top of the laser cutting machine, between the middle partition frame and the limit frame, and attached to the top of the suction cup. The plate is placed on the top of the laser cutting machine and will not move during processing, thereby ensuring the quality of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional top view of the structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0027] Figure 3 It is a schematic diagram of the internal structure of the present invention as a whole;

[0028] Figure 4It is a schematic diagram of the internal structure of the present invention viewed from above;

[0029] Figure 5 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0030] In the figure: 1. laser cutting machine; 2. shell; 3. laser cutting head; 4. positioning device; 401. first motor; 402. first gear; 403. rotating rod; 404. second gear; 405. connecting frame; 406. limiting seat; 407. first connecting plate; 408. screw; 409. second motor; 410. limiting slide; 411. threaded sleeve; 412. second connecting plate; 413. connecting rod; 414. opening groove; 5. auxiliary device; 501. driving motor; 502. connecting shell; 503. slide; 504. slide; 505. connecting platform; 506. limiting frame; 507. second screw; 508. second threaded sleeve; 509. connecting plate; 510. limiting connecting slide; 6. placing device; 601. intermediate partition frame; 602. suction cup. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figure 1-5 The present invention provides a technical solution: a laser cutting machine with a positioning function, comprising a laser cutting machine 1, a shell 2 is arranged on the top of the laser cutting machine 1, a positioning device 4 is arranged inside the shell 2, a laser cutting head 3 is arranged at the bottom of the positioning device 4, an auxiliary device 5 is arranged on the top of the laser cutting machine 1, a placing device 6 is arranged on the top of the laser cutting machine 1, a control device is connected to the left side of the laser cutting machine 1, and the control device signal is connected to the first motor 401.

[0034] The positioning device 4 includes a first motor 401, a first gear 402, a rotating rod 403, a second gear 404, a connecting frame 405, a limiting seat 406, a first connecting plate 407, a screw 408, a second motor 409, a limiting slide 410, a threaded sleeve 411, a second connecting plate 412, a connecting rod 413 and an opening groove 414. The first motor 401 is fixedly connected to the top of the laser cutting machine 1, the first gear 402 is fixedly connected to the output shaft of the first motor 401, the second gear 404 meshes with the first gear 402, the rotating rod 403 is fixedly connected to the inside of the second gear 404, the limiting seat 406 is fixedly connected to the inner top of the shell 2, the rotating rod 403 is slidably connected to the inner wall of the limiting seat 406, the connecting frame 405 is fixedly connected to the surface of the rotating rod 403, the first connecting plate 407 is fixedly connected to the surface of the rotating rod 403, the second motor 409 is fixedly connected to the right side of the first connecting plate 407, and the screw 408 is fixedly connected to The output shaft of the second motor 409, the threaded sleeve 411 is threadedly connected to the surface of the screw 408, a bearing is fixedly connected to the left side of the top of the laser cutting machine 1, the rotating rod 403 is fixedly connected to the inner ring of the bearing, the left side of the second connecting plate 412 is fixedly connected to a connecting bearing, the screw 408 is fixedly connected to the inner ring of the connecting bearing, and the bearing and the connecting bearing can drive the rotating rod 403 and the screw 408 to rotate, which can ensure the normal use of the positioning device 4, a limited circular hole is provided inside the threaded sleeve 411, the limiting slide bar 410 is fixedly connected to the right side of the first connecting plate 407 near the bottom, the threaded sleeve 411 is slidably connected to the surface of the limiting slide bar 410, the second connecting plate 412 is fixedly connected to the surface of the connecting frame 405 near the right side, the connecting rod 413 is fixedly connected to the right side of the threaded sleeve 411 near the bottom, the cutting head 3 is fixedly connected to the right side of the connecting rod 413, and the opening groove 414 is provided at the bottom of the shell 2.

[0035] The auxiliary device 5 includes a driving motor 501, a connecting shell 502, a slide 503, a slide 504, a connecting platform 505, a limiting frame 506, a second screw 507, a second threaded sleeve 508, a connecting plate 509, and a limiting connecting slide 510. The driving motor 501 is fixedly connected to the top of the laser cutting machine 1, the connecting shell 502 is fixedly connected to the top of the laser cutting machine 1, the second screw 507 is fixedly connected to the output shaft of the driving motor 501, the second threaded sleeve 508 is threadedly connected to the surface of the second screw 507, the slide 503 is fixedly connected to the top of the laser cutting machine 1, the slide 504 is fixedly connected to the top of the slide 503, the connecting platform 505 is fixedly connected to the left side of the second threaded sleeve 508, the connecting platform 505 is slidably connected to the top of the slide 504, and the connecting plate 509 is fixedly connected to the first The right side of the second threaded sleeve 508 and the left side of the connecting shell 502 are provided with a rectangular through groove, and the connecting platform 505 is slidably connected to the inner wall of the rectangular through groove. By providing the rectangular through groove, the connecting platform 505 can pass through the left side of the connecting shell 502, driving the connecting platform 505 to move along the top of the slide 504 to ensure that the device can be used normally. A placement groove is provided on the inner right side of the connecting shell 502, and the limiting connecting slide bar 510 is fixedly connected to the inner wall of the placement groove. The connecting plate 509 is slidably connected to the surface of the limiting connecting slide bar 510. The connecting plate 509 is slidably connected to the inner wall of the placement groove. By providing the placement groove, the placement groove plays the role of placing the limiting connecting slide bar 510, and the connecting plate 509 is slidably connected to the surface of the limiting connecting slide bar 510, which can be limited and increase the sliding stability of the connecting plate 509.

[0036] The placement device 6 includes an intermediate partition frame 601 and a suction cup 602 . The intermediate partition frame 601 is fixedly connected to the top of the laser cutting machine 1 , and the suction cup 602 is fixedly connected to the top of the laser cutting machine 1 .

[0037] A positioning method for a laser cutting machine tool, which is implemented based on any of the above-mentioned laser cutting machines, comprises the following steps:

[0038] S1: Adjust the laser cutting head position

[0039] When in use, the first motor 401 is regulated by the control device so that the first motor 401 rotates and the rotation angle of the first motor 401 is adjusted, thereby driving the first gear 402 to rotate. The rotation of the first gear 402 drives the meshing second gear 404 to rotate, thereby driving the rotating rod 403 to rotate, and the rotation of the rotating rod 403 drives the surface connecting frame 405 to rotate, driving the connecting frame 405 to rotate in a fan shape, thereby adjusting the position of the laser cutting head 3 on the Y axis. At the same time, the second motor 409 can also be regulated by the control device to drive the second motor 409 to rotate, thereby driving the screw 408 to rotate, so that the threaded sleeve 411 can move along the surface of the screw 408, thereby driving the connecting rod 413 and the laser cutting head 3 on its side to move horizontally, and the position of the laser cutting head 3 can be adjusted on the X axis. The control device is used for regulation, and the accuracy is better.

[0040] S2: Plate limit

[0041] When in use, start the drive motor 501 to drive the second screw 507 to rotate, drive the second threaded sleeve 508 to slide along the surface of the second screw 507, and the second threaded sleeve 508 drives the right connecting plate 509 to slide along the inner wall of the placement groove when moving, which can increase the sliding stability of the connecting plate 509, and the second threaded sleeve 508 drives the connecting platform 505 to slide along the top of the slide 504, thereby driving the limit frame 506 to move backward, and the same equipment is provided on the left side, except that the limit frame 506 on the left side is located near the back of the laser cutting machine 1. When in use, start the drive motor 501 to drive the two limit frames 506 to move toward the center, that is, move towards each other for limiting.

[0042] S3: Placing of plates

[0043] When in use, the plate is placed on the top of the laser cutting machine 1 and is located between the middle partition frame 601 and the limit frame 506 and is attached to the top of the suction cup 602 to place the plate.

[0044] In actual operation, when this device is in use, the motor 401 is regulated by the control device, so that the motor 401 rotates and the rotation angle of the motor 401 is adjusted, thereby driving the first gear 402 to rotate. The rotation of the first gear 402 drives the meshing second gear 404 to rotate, thereby driving the rotating rod 403 to rotate, and the rotation of the rotating rod 403 drives the surface connecting frame 405 to rotate, driving the connecting frame 405 to rotate in a fan shape, thereby adjusting the position of the laser cutting head 3 on the Y axis. At the same time, the second motor 409 can also be regulated by the control device to drive the second motor 409 to rotate, thereby driving the screw 408 to rotate, so that the threaded sleeve 411 can move along the surface of the screw 408, thereby driving the connecting rod 413 and the laser cutting head 3 on its side to move horizontally, and the position of the laser cutting head 3 can be adjusted on the X axis. The control device is used for regulation, and the accuracy is better. When in use, start the drive motor 501 to drive the second screw The rod 507 rotates, driving the second threaded sleeve 508 to slide along the surface of the second screw rod 507, and the second threaded sleeve 508 drives the right connecting plate 509 to slide against the inner wall of the placement groove when moving, which can increase the sliding stability of the connecting plate 509, and the second threaded sleeve 508 drives the connecting platform 505 to slide against the top of the slide 504, thereby driving the limit frame 506 to move backward, and the same equipment is provided on the left side, except that the limit frame 506 on the left side is located near the back of the laser cutting machine 1. When in use, the drive motor 501 is started to drive the two limit frames 506 to move toward the center, that is, move in a direction close to each other for limiting. When in use, the plate is placed on the top of the laser cutting machine 1, and is located between the middle partition frame 601 and the limit frame 506, and is attached to the top of the suction cup 602. The plate is placed on the top of the laser cutting machine 1 and will not move during processing, thereby ensuring the quality of processing.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting machine with a positioning function, comprising a laser cutting machine (1), characterized in that: The laser cutting machine (1) is provided with a shell (2) on the top, a positioning device (4) is provided inside the shell (2), a laser cutting head (3) is provided at the bottom of the positioning device (4), an auxiliary device (5) is provided on the top of the laser cutting machine (1), a placement device (6) is provided on the top of the laser cutting machine (1), a control device is connected to the left side of the laser cutting machine (1), and a signal of the control device is connected to the first motor (401); The positioning device (4) comprises a first motor (401), a first gear (402), a rotating rod (403), a second gear (404), a connecting frame (405), a limiting seat (406), a first connecting plate (407), a screw rod (408), a second motor (409), a limiting sliding rod (410), a threaded sleeve (411), a second connecting plate (412), a connecting rod (413) and an opening groove (414), wherein the first motor (401) is fixedly connected to the top of the laser cutting machine tool (1), the first gear (402) is fixedly connected to the output shaft of the first motor (401), and the second gear (404) meshes with the first gear ( 402), the rotating rod (403) is fixedly connected to the inside of the second gear (404), the limiting seat (406) is fixedly connected to the inner top of the housing (2), the rotating rod (403) is slidably connected to the inner wall of the limiting seat (406), the connecting frame (405) is fixedly connected to the surface of the rotating rod (403), the first connecting plate (407) is fixedly connected to the surface of the rotating rod (403), the second motor (409) is fixedly connected to the right side of the first connecting plate (407), the screw rod (408) is fixedly connected to the output shaft of the second motor (409), and the threaded sleeve (411) is threadedly connected to the surface of the screw rod (408); The auxiliary device (5) comprises a driving motor (501), a connecting shell (502), a slide seat (503), a slide frame (504), a connecting platform (505), a limiting frame (506), a second screw rod (507), a second threaded sleeve (508), a connecting plate (509), and a limiting connecting slide rod (510); the driving motor (501) is fixedly connected to the top of the laser cutting machine tool (1); the connecting shell (502) is fixedly connected to the top of the laser cutting machine tool (1); the second screw rod (507) is fixedly connected to the top of the laser cutting machine tool (1); The second threaded sleeve (508) is threadedly connected to the surface of the second screw rod (507), the slide seat (503) is fixedly connected to the top of the laser cutting machine (1), the slide frame (504) is fixedly connected to the top of the slide seat (503), the connecting platform (505) is fixedly connected to the left side of the second threaded sleeve (508), the connecting platform (505) is slidably connected to the top of the slide frame (504), and the connecting plate (509) is fixedly connected to the right side of the second threaded sleeve (508); The placement device (6) comprises an intermediate partition frame (601) and a suction cup (602), wherein the intermediate partition frame (601) is fixedly connected to the top of the laser cutting machine tool (1), and the suction cup (602) is fixedly connected to the top of the laser cutting machine tool (1); The inner right side of the connection shell (502) is provided with a placement groove, the limit connection slide bar (510) is fixedly connected to the inner wall of the placement groove, the connection plate (509) is slidably connected to the surface of the limit connection slide bar (510), and the connection plate (509) is slidably connected to the inner wall of the placement groove; A limited circular hole is provided inside the threaded sleeve (411); the limited sliding rod (410) is fixedly connected to the right side of the first connecting plate (407) near the bottom; the threaded sleeve (411) is slidably connected to the surface of the limited sliding rod (410); the second connecting plate (412) is fixedly connected to the surface of the connecting frame (405) near the right side; the connecting rod (413) is fixedly connected to the right side of the threaded sleeve (411) near the bottom; the cutting head (3) is fixedly connected to the right side of the connecting rod (413); and the opening groove (414) is provided at the bottom of the housing (2); A rectangular through slot is provided on the left side of the connecting shell (502), and the connecting platform (505) is slidably connected to the inner wall of the rectangular through slot.

2. The laser cutting machine with positioning function according to claim 1, characterized in that: A bearing is fixedly connected to the left side of the top of the laser cutting machine tool (1), the rotating rod (403) is fixedly connected to the inner ring of the bearing, a connecting bearing is fixedly connected to the left side of the second connecting plate (412), and the screw rod (408) is fixedly connected to the inner ring of the connecting bearing.

3. A positioning method for a laser cutting machine, which is implemented based on the laser cutting machine according to any one of claims 1 or 2, characterized in that: The following steps are involved: S1: Adjust the laser cutting head position When in use, the first motor (401) is regulated by the control device so that the first motor (401) rotates and the rotation angle of the first motor (401) is adjusted, thereby driving the first gear (402) to rotate. The rotation of the first gear (402) drives the meshing second gear (404) to rotate, thereby driving the rotating rod (403) to rotate. The rotation of the rotating rod (403) drives the connecting frame (405) on the surface to rotate, and drives the connecting frame (405) to rotate in a fan shape, thereby adjusting the position of the laser cutting head (3) on the Y axis. At the same time, the second motor (409) can also be regulated by the control device to drive the second motor (409) to rotate, thereby driving the screw rod (408) to rotate, so that the threaded sleeve (411) can move along the surface of the screw rod (408), thereby driving the connecting rod (413) and the laser cutting head (3) on the side thereof to move horizontally, and the position of the laser cutting head (3) can be adjusted on the X axis. The control device is used for regulation, and the accuracy is better; S2: Plate limit When in use, the drive motor (501) is started to drive the second screw rod (507) to rotate, drive the second threaded sleeve (508) to slide along the surface of the second screw rod (507), and the second threaded sleeve (508) drives the right connecting plate (509) to slide against the inner wall of the placement groove when moving, which can increase the sliding stability of the connecting plate (509), and the second threaded sleeve (508) drives the connecting platform (505) to slide against the top of the slide (504), thereby driving the limit frame (506) to move backward, and the same device is provided on the left side, except that the limit frame (506) on the left side is located near the back of the laser cutting machine tool (1). When in use, the drive motor (501) is started to drive the two limit frames (506) to move toward the center, that is, move in a direction close to each other, and perform limiting. S3: Placing of plates When in use, the plate is placed on the top of the laser cutting machine (1), between the middle partition frame (601) and the limit frame (506), and is attached to the top of the suction cup (602) to place the plate.

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