Laser cutting device

Abstract

The invention relates to the technical field of laser cutting, and discloses a laser cutting device which comprises a machine frame and further comprises a supporting plate arranged on the machine frame and used for containing a plate. The laser machining head faces the supporting plate, and the laser machining head is used for laser cutting of the plate; the laser generator is arranged on the rack, and the laser generator is used for exciting laser to the laser processing head; and the distance adjusting assembly is used for adjusting the height of the supporting plate in the vertical direction. The supporting plate is arranged on the rack, so that a flat placement plane can be provided for the plate, the laser generator excites laser to the laser machining head, the laser machining head can guide the laser to the supporting plate, and the plate borne on the supporting plate is cut through the laser. By arranging the distance adjusting assembly, the distance between the laser machining head and the surface of the plate can be accurately controlled, laser energy concentration is guaranteed, and the cutting efficiency and the notch quality are improved.

Description

Technical Field

[0001] The present application relates to the field of laser cutting technology, and mainly to a laser cutting device. Background Art

[0002] In the field of laser cutting technology, sheet flatness is a key factor affecting cutting accuracy. Warping, unevenness, and irregularities in the sheet during the laser cutting process can cause variations in the distance between the laser beam's focal point and the sheet's surface. This can lead to inconsistent cutting depths and reduced cut quality, seriously impacting product accuracy and quality.

[0003] In addition to ensuring the flatness of the plate, it is generally necessary to ensure the horizontal effect of the placement platform to avoid angle tilt that affects the cutting accuracy. Currently in the laser cutting process, when the cutting focal length of the laser needs to be adjusted, it can generally be adjusted by two methods: the height of the laser muzzle or the height of the supporting platform. However, adjustment through the former requires the addition of a corresponding lifting mechanism, and it is also easy to affect the alignment accuracy of the muzzle. Adjustment through the latter is easy to affect the horizontal effect due to inconsistent adjustments in different directions. If the lifting is controlled by setting a motor, not only is the design complicated, but the process of motor-driven lifting and the setbacks during shutdown are easy to cause the placed plate to shake, affecting the required precision cutting effect. Therefore, it is necessary to provide a laser cutting device that can easily adjust the height and can achieve horizontal adjustment to ensure cutting accuracy. Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of this application is to provide a laser cutting device, which aims to solve the problem that the existing laser device easily affects the smooth cutting of the plate when adjusting the laser height.

[0005] The technical solution of this application is as follows: The present application provides a laser cutting device, comprising a frame, wherein the laser cutting device further comprises: A support plate, the support plate is arranged on the frame and is used to place the plate; a laser processing head, the laser processing head facing the support plate, and the laser processing head being used for laser cutting the plate; A laser generator, which is disposed on the frame and is used to excite laser light to the laser processing head; A distance-adjusting assembly is used to adjust the height of the support plate in the vertical direction.

[0006] Furthermore, the distance adjustment component includes: A spacing nut, the spacing nut being arranged on the supporting plate; A pitch-adjusting screw, the pitch-adjusting screw being rotatably disposed on the frame, the pitch-adjusting screw corresponding to the pitch-adjusting nut; The pitch-adjusting screw and the pitch-adjusting nut are thread-matched.

[0007] Furthermore, the distance adjustment assembly further includes a synchronous belt; A coaxially connected synchronous gear is provided at one end of the pitch-adjusting screw away from the supporting plate, and the synchronous gears of the plurality of pitch-adjusting screws are meshed with the synchronous belt.

[0008] Furthermore, the adjustable nut includes a first adjustable nut, a second adjustable nut and a third adjustable nut; The first adjusting nut and the second adjusting nut are arranged on both sides of the support plate relative to each other, and the third adjusting nut is arranged on the side of the support plate farther away from the first adjusting nut and the second adjusting nut. The projection points of the first adjusting nut, the second adjusting nut and the third adjusting nut on the plane where the support plate is located form a triangular layout.

[0009] Furthermore, the pitch-adjustable screw comprises: An active pitch-adjusting screw, the active pitch-adjusting screw corresponding to the third pitch-adjusting nut, and a knob coaxially provided at one end of the active pitch-adjusting screw; Two driven pitch-adjusting screws are provided, and the two driven pitch-adjusting screws correspond to the first pitch-adjusting nut and the second pitch-adjusting nut respectively.

[0010] Furthermore, the distance adjustment component further includes: A tensioning wheel, the synchronous belt is wound around the tensioning wheel, and the tensioning wheel is used to tension the synchronous belt.

[0011] Furthermore, the distance adjustment component further includes: a third guide rail, the third guide rail being arranged on the frame, and a fixing block being arranged at one end of the third guide rail; a third slider, the third slider being slidably connected to the third guide rail, the third slider being provided with an adjustment spring connected to the fixed block, the adjustment spring being in a stretched state; The tensioning wheel is rotatably connected to the third slider.

[0012] Furthermore, the laser cutting device further comprises: a first guide rail, the first guide rail being arranged on the frame; a first slider, the first slider being slidably connected to the first guide rail, and the first slider sliding back and forth along the first guide rail; a second guide rail, the second guide rail being arranged on the first slider; a second slider, the second slider being slidably connected to the second guide rail, and the second slider sliding left and right along the second guide rail; The laser processing head is arranged on the second slider.

[0013] Furthermore, the laser cutting device further comprises: A reflector is provided on the first slider and is used to reflect the laser light to the laser processing head.

[0014] Furthermore, trigger switches are provided at both ends of the first guide rail, and the trigger switches are electrically connected to the laser generator.

[0015] Beneficial Effects: This application provides a flat surface for the sheet metal by placing a pallet on the frame. A laser generator then directs the laser light to the laser processing head, which then directs the laser light to the pallet, where it cuts the sheet metal. A distance adjustment component precisely controls the distance between the laser processing head and the sheet metal surface, ensuring laser energy concentration and improving cutting efficiency and cut quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural schematic diagrams of the laser cutting device of this application.

[0017] Figure 2 This is the second structural diagram of the laser cutting device of this application.

[0018] Figure 3 This is a schematic structural diagram of the active pitch-adjusting screw and the driven pitch-adjusting screw of this application.

[0019] Figure 4 This is a schematic diagram of the distribution of the pitch adjustment components of this application on the rack.

[0020] Explanation of reference numerals: 100, frame; 200, support plate; 300, laser processing head; 310, first guide rail; 320, first slider; 321, reflector; 322, trigger switch; 330, second guide rail; 340, second slider; 400, laser generator; 500, pitch adjustment assembly; 510, pitch adjustment nut; 511, first pitch adjustment nut; 512, second pitch adjustment nut; 513, third pitch adjustment nut; 520, pitch adjustment screw; 521, synchronous gear; 522, active pitch adjustment screw; 5221, knob; 523, driven pitch adjustment screw; 530, synchronous belt; 540, tensioner; 541, third guide rail; 542, fixing block; 543, third slider; 544, adjusting spring. DETAILED DESCRIPTION

[0021] This application provides a laser cutting device. To make the purpose, technical solution and effect of this application clearer and more specific, this application is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0022] Reference Figure 1-Figure 4 The present application provides a laser cutting device, including a frame 100, wherein the laser cutting device further includes: The support plate 200 is provided on the frame 100 and is used for placing plates; A laser processing head 300, the laser processing head 300 faces the support plate 200, and the laser processing head 300 is used for laser cutting the plate; A laser generator 400 is provided on the frame 100 and is used to excite laser light to the laser processing head 300; The distance adjustment component 500 is used to adjust the height of the supporting plate 200 in the vertical direction.

[0023] In the present application, by providing a frame 100 to provide rigid support and integrating other components on the frame 100, the stability of the overall structure can be improved and cutting stability can be ensured. By providing a pallet 200 on the frame 100, the pallet 200 can provide a flat placement surface for the plate to be laser cut. The laser generator 400 excites the laser to the laser processing head 300, and the laser processing head 300 can guide the laser to the pallet 200, and cut the plate carried on the pallet 200 through the laser. By providing a distance adjustment component 500 on the frame 100, the vertical position of the pallet 200 can be adjusted by the distance adjustment component 500, and the distance between the laser processing head 300 and the surface of the plate can be accurately controlled. For plates of different thicknesses, the laser focus position can be adjusted by the distance adjustment component 500 to ensure the concentration of laser energy and improve cutting efficiency and incision quality.

[0024] Reference Figure 1 and Figure 2 In a specific embodiment of the present application, the distance adjustment component 500 includes: The distance adjusting nut 510 is provided on the supporting plate 200; A pitch-adjusting screw 520 is rotatably mounted on the frame 100 and corresponds to the pitch-adjusting nut 510 . The pitch-adjusting screw 520 and the pitch-adjusting nut 510 are threadably matched.

[0025] In the present application, by setting the pitch-adjusting nut 510 on the support plate 200, it is only necessary to rotate the pitch-adjusting screw 520 that cooperates with its thread to achieve control of the vertical position of the support plate 200. Through thread cooperation, the pitch of the thread is used to achieve "conversion from rotational motion to linear motion". The position of the support plate 200 can be adjusted continuously and with high precision, meeting the stringent requirements of laser cutting on focal length accuracy, and ensuring that the provided laser cutting device can be used for cutting plates of different thicknesses. Through the setting of the present application, there is no need for a complex electrical control system or hydraulic device to adjust the height, and the thread also has a self-locking function, and there is no need to set up an additional locking device to maintain the position of the support plate 200, avoiding height deviation due to vibration during cutting, and ensuring the consistency of cutting accuracy. The operator can directly manually adjust the height of the support plate 200 to quickly adapt to different plates.

[0026] Reference Figure 1-Figure 3 In a specific embodiment of the present application, the pitch adjustment assembly 500 further includes a synchronous belt 530; A coaxially connected synchronous gear 521 is provided at one end of the pitch-adjusting screw 520 away from the supporting plate 200 , and the synchronous gears 521 of the plurality of pitch-adjusting screws 520 are engaged with the synchronous belt 530 .

[0027] Among them, after the synchronous belt 530 is meshed and wound around the synchronous gear 521, the synchronous belts 530 on both sides of the synchronous gear 521 form an angle, wherein the relatively larger angle is set to be greater than 120° to ensure the transmission.

[0028] In the present application, by setting a synchronous gear 521 on the pitch-adjusting screw 520 that is simultaneously engaged with the synchronous belt 530, the operator only needs to drive any one pitch-adjusting screw 520 to drive all the pitch-adjusting screws 520 to rotate synchronously through the synchronous belt 530, thereby achieving rapid overall adjustment of the height of the pallet 200, without having to adjust each screw separately, greatly shortening the adjustment time, especially after the pallet 200 has been initially adjusted to a horizontal state, the setting of the present application can maintain the height of the pallet 200 in an overall horizontal state, which is particularly suitable for production scenarios where plates of different thicknesses are frequently replaced. The pitch-adjusting assembly 500 realizes the coordinated drive of multiple screws, forming significant advantages in ensuring the smoothness of the pallet 200, improving the adjustment efficiency, and enhancing the reliability of the structure, providing reliable technical support for the high-precision and high-efficiency operation of laser cutting equipment.

[0029] Specifically, in the present application, a plurality of distance adjusting nuts 510 can be provided to ensure stable support of the support plate 200, and preferably at least three are provided.

[0030] Reference Figure 2In a specific embodiment of the present application, the adjustable nut 510 includes a first adjustable nut 511, a second adjustable nut 512 and a third adjustable nut 513; The first adjusting nut 511 and the second adjusting nut 512 are relatively arranged on both sides of the support plate 200, and the third adjusting nut 513 is arranged on the side of the support plate 200 farther away from the first adjusting nut 511 and the second adjusting nut 512. The first adjusting nut 511, the second adjusting nut 512 and the third adjusting nut 513 form a triangular layout at the projection point of the plane where the support plate 200 is located.

[0031] In the present application, a triangular layout is formed by arranging the first distance-adjusting nut 511, the second distance-adjusting nut 512, and the third distance-adjusting nut 513 on the plane of the support plate 200. Compared with a linear arrangement or two-point support, the triangular distribution has higher geometric stability. At the same time, the three-point support can evenly distribute the load of the support plate 200 and the plate, effectively resist the torsion and tilt of the support plate 200 in the horizontal direction, reduce the deviation of the support plate 200 caused by uneven placement of the plate or lateral force generated during the cutting process, ensure that the support plate 200 always remains horizontal during laser cutting, and improve the verticality and flatness of the cutting surface. It is also beneficial to apply force evenly during subsequent distance adjustment, which is beneficial to keep the support plate 200 horizontal.

[0032] Reference Figure 2 and Figure 3 In a specific embodiment of the present application, the pitch-adjusting screw 520 includes: An active pitch-adjusting screw 522 , which corresponds to the third pitch-adjusting nut 513 , and a knob 5221 is coaxially provided at one end of the active pitch-adjusting screw 522 ; There are two driven pitch-adjusting screws 523 , and the two driven pitch-adjusting screws 523 correspond to the first pitch-adjusting nut 511 and the second pitch-adjusting nut 512 , respectively.

[0033] In the present application, by providing a coaxial knob 5221 on the active pitch-adjusting screw 522, the operator can easily adjust the height of the support plate 200 by twisting the knob 5221. Moreover, the third pitch-adjusting nut 513, the first pitch-adjusting nut 511, and the second pitch-adjusting nut 512 are arranged in an isosceles triangle. The active pitch-adjusting screw 522 and the two driven pitch-adjusting screws 523 provided in the present application correspond to the third pitch-adjusting nut 513, the first pitch-adjusting nut 511, and the second pitch-adjusting nut 512, respectively. The distance between the active pitch-adjusting screw 522 and the other two driven pitch-adjusting screws 523 is relatively consistent. When adjusting the height, the transmission process can be relatively balanced, ensuring that the various parts of the support plate 200 are subjected to uniform force, avoiding tilting or twisting of the support plate 200 due to asynchronous adjustment, maintaining the flatness of the support plate 200, and ensuring the accuracy of laser cutting. This application forms comprehensive advantages in terms of operational convenience, structural stability and cost control through the structural design of the active pitch-adjusting screw 522 and the driven pitch-adjusting screw 523, through single-point control, triangular support linkage and modular layout. It is particularly suitable for laser cutting equipment that requires both manual adjustment flexibility and high-precision processing, providing reliable guarantee for improving production efficiency and processing quality.

[0034] More pitch-adjusting nuts 510 and corresponding pitch-adjusting screws 520 can be provided, but if too many are provided, the adjustment resistance increases, and the overall transmission is prone to jamming during adjustment, which can easily affect the cutting accuracy. Generally, three are sufficient.

[0035] Reference Figure 4 In a specific embodiment of the present application, the distance adjustment component 500 further includes: The tensioning wheel 540 , on which the synchronous belt 530 is wound, is used to tension the synchronous belt 530 .

[0036] In the present application, the active pitch-adjusting screw 522 and the driven pitch-adjusting screw 523 are driven by a synchronous belt 530. If the synchronous belt 530 is loose, the transmission will slip, causing the synchronization between the pitch-adjusting screws 520 to fail. Once one of the pitch-adjusting screws 520 is rotated, the pallet 200 will be tilted, resulting in the required overall leveling effect being destroyed, and the leveling needs to be re-adjusted before continued use. The present application effectively eliminates the loosening phenomenon of the synchronous belt 530 caused by long-term use or stress by wrapping a tensioning pulley 540 around the synchronous belt 530 and applying tension to it, ensuring that the synchronous belt 530 is always tightly engaged with the synchronous gear 521, ensuring that multiple pitch-adjusting screws 520 rotate synchronously, and maintaining the flatness and accuracy of the pallet 200 when it is raised and lowered.

[0037] Reference Figure 4 In a specific embodiment of the present application, the distance adjustment component 500 further includes: A third guide rail 541 is provided on the rack 100 , and a fixing block 542 is provided at one end of the third guide rail 541 ; A third slider 543 is slidably connected to the third guide rail 541 . The third slider 543 is provided with an adjustment spring 544 connected to the fixed block 542 . The adjustment spring 544 is in a stretched state. The tensioning wheel 540 is rotatably connected to the third slider 543 .

[0038] The adjusting spring 544 may be configured to be detachably connected to both the third slider 543 and the fixing block 542 .

[0039] In the present application, since the synchronous belt 530 affects the horizontal state adjustment required to be maintained by the support plate 200, a good horizontal maintenance effect can be ensured by setting an adjustment spring 544. Specifically, when only the synchronous belt 530 is set, the synchronous belt 530 is easily too loose for a long time, which can cause the teeth to jump and slip when adjusting the pitch screw 520. Being in an overly tight state for a long time will accelerate the wear of the synchronous belt 530 and the synchronous gear 521, and it is also easy to cause tension failure. In the present application, by setting an adjustment spring 544, when it is not adjusted at ordinary times, the synchronous belt 530 can be kept in a suitable tension range, which is conducive to improving its service life. At the same time, when adjusting the pitch screw 520, the synchronous belt 530 is subjected to force to produce a slight deformation while maintaining tension and continues to be tensioned, ensuring transmission synchronization. The third slider 543 can slide along the third guide rail 541, and the tension adjustment spring 544 further increases the tensioning force, compensating for the tension loss caused by the change in transmission load, ensuring the synchronization accuracy between the pitch screws 520, and avoiding tilt deviation when the support plate 200 is raised or lowered as a whole. Moreover, during the laser cutting process, if the synchronous belt 530 is subjected to uneven force instantaneously due to equipment vibration, the elastic characteristics of the adjustment spring 544 can automatically absorb the impact and adjust the position of the tensioning wheel 540, maintaining constant tension in the synchronous belt 530, ensuring that the support plate 200 rises and falls smoothly, and ensuring the verticality and accuracy of the laser cutting. Through the setting of this application, the horizontal effect of the support plate 200 can be maintained for a long time.

[0040] Among them, the third slider 543, the fixed block 542, the tensioning wheel 540 and the adjustment spring 544 can be set as a disassembly and assembly module. When the spring fatigue fails, the tensioning wheel 540 is worn or the synchronous belt 530 is loose, it is only necessary to remove the third slider 543 to quickly replace the relevant components without disassembling the entire adjustment system, which significantly improves maintenance efficiency and reduces maintenance complexity and downtime.

[0041] Reference Figure 1 and Figure 2 In a specific embodiment of the present application, the laser cutting device further includes: A first guide rail 310 , wherein the first guide rail 310 is provided on the frame 100 ; A first slider 320 is slidably connected to the first guide rail 310 and slides back and forth along the first guide rail 310 ; A second guide rail 330 , the second guide rail 330 is provided on the first slider 320 ; A second slider 340 is slidably connected to the second guide rail 330 , and the second slider 340 slides left and right along the second guide rail 330 ; The laser processing head 300 is disposed on the second slide 340 .

[0042] The first guide rails 310 can be arranged in two parallel positions, the first sliders 320 can be arranged in two parallel positions, and the second guide rail 330 can be arranged on the two first sliders 320 , which is conducive to ensuring the smooth movement of the laser processing head 300 .

[0043] In the present application, by setting the first slider 320 to slide back and forth along the first guide rail 310, and the second slider 340 to slide left and right along the second guide rail 330, the precise fit between the guide rail and the slider can control the motion error to an extremely small range. The cooperation between the two enables the laser processing head 300 to achieve free movement in the X and Y axis directions within the plane, covering a large processing area of ​​the pallet 200.

[0044] Reference Figure 1 and Figure 2 In a specific embodiment of the present application, the laser cutting device further includes: The reflector 321 is disposed on the first slider 320 and is used to reflect the laser light to the laser processing head 300 .

[0045] In the present application, by setting a reflector 321 on the first slider 320, the laser of the laser emitter can be directed to the reflector 321 of the first slider 320, and then reflected to the laser processing head 300. In this way, while ensuring the realization of laser cutting, the laser emitter does not need to be set on the laser processing head 300, but is set in a place that is easy to adjust and control, so as to achieve high-requirement cutting details.

[0046] Reference Figure 1 and Figure 2 In a specific embodiment of the present application, trigger switches 322 are provided at both ends of the first guide rail 310 , and the trigger switches 322 are electrically connected to the laser generator 400 .

[0047] The trigger switch 322 may be a micro switch. The first slider 320 may be provided with a limit block to prevent the laser processing head 300 from exceeding the processing area in the left and right directions.

[0048] In the present application, trigger switches 322 are provided at both ends of the first guide rail 310 to prevent the laser from irradiating the non-processing area and causing damage.

[0049] In a specific embodiment of the laser cutting device of the present application, the plate to be processed is placed on a support plate 200 provided on a frame 100, and the first adjusting nut 511, the second adjusting nut 512 and the third adjusting nut 513 provided on the side of the support plate 200 form a triangular layout. At the same time, two corresponding driven adjusting screws 523 and an active adjusting screw 522 are rotatably connected and provided on the frame 100, and the support plate 200 is adjusted to maintain a horizontal state through threaded engagement.

[0050] After preparation is complete, the laser generator 400 is fixed to the frame 100. The generated laser beam can enter along the direction of the first guide rail 310, change the direction of the optical path through the reflector 321 on the first slider 320, and accurately guide the laser processing head 300 mounted on the second slider 340. Through the combination of the second slider 340 and the second guide rail 330, and the first slider 320 and the first guide rail 310, the laser processing head 300 can achieve planar movement in the left and right directions and the front and back directions, ensuring that the laser beam can cover the entire processing area of ​​the pallet 200. During the movement process, the trigger switches 322 at both ends of the first guide rail 310 monitor the position of the slider in real time. When the slider touches the trigger switch 322, the trigger switch 322 sends an electrical signal to the laser generator 400 to control the start and stop of the laser generator 400, preventing the laser from being emitted in non-processing areas.

[0051] When the height of the support plate 200 is adjusted to the desired position and the laser processing head 300 moves to the preset cutting starting position, the laser generator 400 excites the laser, which is reflected by the reflector 321 and enters the laser processing head 300. After focusing, it acts on the surface of the plate. Under the control of the existing CNC system, the first slider 320 and the second slider 340 move in coordination, driving the laser processing head 300 to move along the predetermined cutting path. The high-energy-density laser beam instantly melts or vaporizes the plate in the processing area, forming a cutting seam and completing the plate cutting task. Throughout the entire process, the triangular-shaped pitch-adjusting nut 510 and the synchronously driven pitch-adjusting screw 520 ensure that the support plate 200 remains horizontal and stable. At the same time, the adjustment spring 544 provided therein can ensure that the synchronous belt 530 is maintained in a well-tensioned state, addressing possible vibration problems and providing reliable support for high-precision cutting.

[0052] After cutting is complete, the laser generator 400 is turned off. To change plates of different thicknesses and adjust the focal length, the operator turns the knob 5221 at the end of the active pitch-adjusting screw 522, which drives the coaxial synchronous gear 521 to rotate. The synchronous gear 521 of the active pitch-adjusting screw 522 meshes with the synchronous gears 521 of the other driven pitch-adjusting screws 523 via the timing belt 530, achieving synchronized rotation of the multiple screws. At this point, the timing belt 530 is tightened, the third slider 543 slides slightly, and the adjustment spring 544 continues to stretch, maintaining the tension on the timing belt 530. Driven by the screws, the pallet 200 remains horizontal and smoothly rises and falls vertically to the desired height. During this process, the tensioning pulley 540 is slidably connected to the third guide rail 541 via the third slider 543. The stretched adjustment spring 544 keeps the tensioning pulley 540 in close contact with the timing belt 530, ensuring constant tension on the timing belt 530 and preventing slippage. After the adjustment is completed, the third slider 543 is reset, and the synchronous belt 530 is restored to a suitable tension state, thereby increasing its service life.

[0053] Through the laser cutting device provided in this application, the vertical position of the support plate 200 is easy to adjust and easy to maintain in a horizontal state for adjustment, which is conducive to ensuring that the laser cutting device can flexibly adjust and cut plates of different thicknesses. At the same time, the guaranteed horizontal state not only reduces the number of multiple adjustments, but also helps to ensure the accuracy of laser cutting.

[0054] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of this application.

Claims

1. A laser cutting device, comprising a frame (100), characterized in that: The laser cutting device also includes: A support plate (200), the support plate (200) being arranged on the frame (100), and the support plate (200) being used to place a plate; a laser processing head (300), the laser processing head (300) facing the support plate (200), the laser processing head (300) being used for laser cutting a plate; a laser generator (400), the laser generator (400) being arranged on the frame (100), and the laser generator (400) being used to excite laser light to the laser processing head (300); A distance adjustment component (500) is used to adjust the height of the supporting plate (200) in a vertical direction.

2. The laser cutting device according to claim 1, characterized in that: The distance adjustment component (500) comprises: a distance-adjusting nut (510), the distance-adjusting nut (510) being arranged on the supporting plate (200); a pitch-adjusting screw (520), the pitch-adjusting screw (520) being rotatably disposed on the frame (100), the pitch-adjusting screw (520) corresponding to the pitch-adjusting nut (510); The pitch-adjusting screw (520) and the pitch-adjusting nut (510) are thread-matched.

3. The laser cutting device according to claim 2, characterized in that: The distance adjustment assembly (500) further includes a synchronous belt (530); A coaxially connected synchronous gear (521) is provided at one end of the pitch-adjusting screw (520) away from the supporting plate (200), and the synchronous gears (521) of the plurality of pitch-adjusting screws (520) are meshed with the synchronous belt (530).

4. The laser cutting device according to claim 2, characterized in that: The distance-adjusting nut (510) comprises a first distance-adjusting nut (511), a second distance-adjusting nut (512), and a third distance-adjusting nut (513); The first spacing nut (511) and the second spacing nut (512) are arranged on opposite sides of the support plate (200), and the third spacing nut (513) is arranged on a side of the support plate (200) that is farther away from the first spacing nut (511) and the second spacing nut (512). The first spacing nut (511), the second spacing nut (512) and the third spacing nut (513) form a triangular layout at a projection point on the plane where the support plate (200) is located.

5. The laser cutting device according to claim 4, characterized in that: The pitch-adjusting screw (520) comprises: an active pitch-adjusting screw (522), the active pitch-adjusting screw (522) corresponding to the third pitch-adjusting nut (513), and a knob (5221) coaxially provided at one end of the active pitch-adjusting screw (522); A driven pitch-adjusting screw (523) is provided in two pieces, and the two driven pitch-adjusting screws (523) correspond to the first pitch-adjusting nut (511) and the second pitch-adjusting nut (512), respectively.

6. The laser cutting device according to claim 3, characterized in that: The distance adjustment component (500) further includes: A tensioning wheel (540), the synchronous belt (530) is wound around the tensioning wheel (540), and the tensioning wheel (540) is used to tension the synchronous belt (530).

7. The laser cutting device according to claim 6, characterized in that: The distance adjustment component (500) further includes: a third guide rail (541), the third guide rail (541) being arranged on the frame (100), and a fixing block (542) being arranged at one end of the third guide rail (541); a third slider (543), the third slider (543) being slidably connected to the third guide rail (541), the third slider (543) being provided with an adjustment spring (544) connected to the fixed block (542), the adjustment spring (544) being in a stretched state; The tensioning wheel (540) is rotationally connected to the third slider (543).

8. The laser cutting device according to claim 1, characterized in that: The laser cutting device also includes: a first guide rail (310), the first guide rail (310) being arranged on the frame (100); a first slider (320), the first slider (320) being slidably connected to the first guide rail (310), and the first slider (320) sliding forward and backward along the first guide rail (310); a second guide rail (330), the second guide rail (330) being arranged on the first sliding block (320); a second slider (340), the second slider (340) being slidably connected to the second guide rail (330), and the second slider (340) sliding left and right along the second guide rail (330); The laser processing head (300) is arranged on the second slider (340).

9. The laser cutting device according to claim 8, characterized in that: The laser cutting device also includes: A reflector (321), the reflector (321) being arranged on the first slider (320), and the reflector (321) being used to reflect laser light to the laser processing head (300).

10. The laser cutting device according to claim 8, characterized in that: Trigger switches (322) are provided at both ends of the first guide rail (310), and the trigger switches (322) are electrically connected to the laser generator (400).

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