Laser cutting assembly and laser cutting device

Abstract

The invention discloses a laser cutting assembly and a laser cutting device, and belongs to the technical field of laser cutting, the laser cutting assembly comprises a rack, and a controller is fixedly mounted on the outer wall of one side of the rack; according to the laser cutting device, the stabilizing and flattening accessory and the joint cutting treatment accessory are arranged on the efficient cutting assembly in a matched mode, through the design, free and rapid position adjustment of the laser cutting assembly can be completed, the laser cutting device can be suitable for different cutting conditions, and meanwhile the cutting efficiency can be improved while material cutting is conducted. The synchronous cooling and heat dissipation treatment is carried out on the cutting area, so that the situation of thermal deformation or thermal stress of a workpiece caused by heat accumulation of the cutting area and generation of a heat affected area is effectively avoided, meanwhile, the cutting seam can be synchronously treated in the cutting process, and the cutting efficiency is improved. And the problem that the cutting quality is affected due to the defects such as burrs and cutting edge flaws easily occurring near a material cutting opening can be effectively solved, and the actual application effect of the overall structure is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting, and in particular relates to a laser cutting component and a laser cutting device. Background Art

[0002] Laser cutting is an advanced processing technology that uses a high-power density laser beam as a heat source. Through computer-aided design and computer-aided manufacturing technology, it follows a pre-designed cutting trajectory to make the surface of the workpiece melt, evaporate or decompose under the irradiation of the laser beam, thereby forming a processing method of incision. Laser cutting technology is widely used in many production fields due to its efficient and environmentally friendly cutting method.

[0003] The Chinese patent discloses (CN116571896A) a laser cutting device that can efficiently process NdFeB materials, including: a feeding mechanism, which includes: a storage bin; a lifting and transferring mechanism, which includes a manipulator with a vacuum suction cup to pick up materials; a transmission mechanism, which is connected to the lifting and transferring mechanism to transmit the materials picked up by the manipulator; a workbench, which includes a positioning mechanism for positioning the material, the positioning mechanism includes a pair of mutually parallel and separated clamping slots for positioning the material and a working space defined therebetween; a laser cutting mechanism, which includes: a laser transmitter, the laser head of the laser transmitter has an optical fiber core diameter of less than 30 microns and is located above the working space; a parallel dual drive system for carrying and moving the laser transmitter; and a nitrogen protection system; a material receiving mechanism, which includes: a screening box, which is located below the working space, receives the material after cutting and can move to separate the material workpiece therein from the slag or skin. Although current laser cutting devices are capable of cutting materials, there are still some problems in practical application. The main problem is that current laser cutting devices are not equipped with a suitable synchronous cooling mechanism, which results in a heat-affected zone in the material during the laser cutting process, which can easily lead to thermal deformation or thermal stress of the workpiece. In addition, the cut seam cannot be processed synchronously during the cutting process, and burrs, cutting edge flaws and other defects are prone to appear near the cutting port, affecting the cutting quality. The actual application effect is not good. Therefore, a laser cutting component and a laser cutting device are proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that although the current laser cutting device can realize the cutting process of materials, there are still some problems in practical application, mainly manifested in that the current laser cutting device is not equipped with a suitable synchronous cooling mechanism, resulting in a heat-affected zone in the material during the laser cutting process, which can easily cause thermal deformation or thermal stress of the workpiece, and the cutting seam cannot be processed synchronously during the cutting process, and burrs, cutting edge flaws and other defects are prone to appear near the cutting mouth, affecting the cutting quality and the actual application effect is not good. A laser cutting component and a laser cutting device are proposed.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a laser cutting device, comprising a frame, a controller is fixedly installed on an outer wall of one side of the frame, two first motors are fixedly installed at one end of the frame, side grooves are provided on the outer walls of both sides of the frame, a screw is fixedly installed on one end of the output shaft of the first motor, inner grooves are provided on the inner walls of both sides of the frame, and a plurality of limit assemblies are provided inside the inner grooves.

[0006] As a further description of the above technical solution:

[0007] The limit assembly includes a sliding shaft, which is fixedly mounted on the inner wall of the inner groove, a side plate is slidably mounted on the outside of the sliding shaft, a sleeve spring is sleeved on the outside of the sliding shaft, and the bottom end of the sleeve spring is fixedly connected to the top surface of the side plate.

[0008] As a further description of the above technical solution:

[0009] A motor is fixedly mounted on the top surface of the side plate, a conduction limit wheel is fixedly mounted on one end of the output shaft of the motor, and the bottom end of the conduction limit wheel is in close contact with and pressed against the top surface of the frame.

[0010] The present invention also discloses a laser cutting component, including a mounting frame, which is threadedly mounted on the outside of a screw rod through a threaded hole arranged inside the mounting frame, a second motor is fixedly mounted on an outer wall of one side of the mounting frame, a screw shaft is fixedly mounted on one end of an output shaft of the second motor, and a high-efficiency cutting component is threadedly mounted on the external thread of the screw shaft.

[0011] As a further description of the above technical solution:

[0012] The high-efficiency cutting assembly comprises a moving seat, which is threadedly mounted on the outside of the screw rod through a threaded hole arranged inside the moving seat, and an electric telescopic shell is fixedly mounted on the bottom of the moving seat, and two bottom grooves are arranged on the bottom surface of the electric telescopic shell.

[0013] As a further description of the above technical solution:

[0014] A laser cutting head is fixedly installed at the middle position of the bottom surface of the electric telescopic shell, and a smoke absorber is fixedly installed outside the electric telescopic shell. A plurality of adsorption holes are arranged on the bottom surface of the smoke absorber.

[0015] As a further description of the above technical solution:

[0016] A stabilizing and leveling accessory is movably installed inside the bottom groove, and the stabilizing and leveling accessory includes a moving frame. The moving frame is slidably installed on a guide rail fixedly installed inside the bottom groove through a slide groove arranged on the outer walls on both sides thereof. An internal spring is fixedly installed on the top of the moving frame, and the top of the internal spring is fixedly connected to the inner wall of the bottom groove.

[0017] As a further description of the above technical solution:

[0018] A mounting roller frame is fixedly installed on the outer wall of one side of the movable frame, a pressing roller is rotatably installed on the inner side of the mounting roller frame via a rotating shaft, a walking wheel is rotatably installed on the outer wall of the other side of the movable frame via a rotating shaft, a cooling fan is fixedly installed on the outer wall of one side of the walking wheel, and the cooling fan is located on one side of the laser cutting head.

[0019] As a further description of the above technical solution:

[0020] A slit processing accessory is fixedly installed on the outer wall of one side of the electric telescopic shell, and the slit processing accessory includes an installation elbow, and a telescopic rod is movably installed inside the installation elbow through a lower top spring. A coolant box is fixedly installed on the outside of one side of the telescopic rod, a liquid storage bag is arranged on the bottom surface of the coolant box, and a coolant conduit is arranged on the outer wall of one side of the liquid storage bag.

[0021] By adopting the above technical solution, by arranging stabilizing and leveling accessories and slit processing accessories on the high-efficiency cutting component, through this design, not only can the free and rapid position adjustment of the laser cutting component be completed, and it can be suitable for different cutting situations, but also while cutting the material, it can synchronously cool down and dissipate heat for the cutting area, thereby effectively avoiding heat accumulation in the cutting area, generating a heat-affected zone, and causing thermal deformation or thermal stress of the workpiece. At the same time, during the cutting process, the slit can be synchronously processed, which can effectively eliminate defects such as burrs and cutting edge defects that are prone to appear near the material cutting port, which affect the cutting quality, and greatly improve the actual application effect of the overall structure.

[0022] As a further description of the above technical solution:

[0023] A side frame is fixedly installed on the outer wall of the other side of the telescopic rod, and a slit burr processing roller is rotatably installed on one side of the side frame through a rotating shaft. A mounting shaft is fixedly installed on one end of the slit burr processing roller, and an extrusion blade is fixedly installed on the outside of the mounting shaft. The extrusion blade is located directly below the liquid storage bag, and the coolant conduit is located above the slit burr processing roller.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In the present invention, by matching the stabilizing and leveling accessories and the slit processing accessories on the high-efficiency cutting component, in the actual cutting process, the cutting piece is first installed on the frame, and then the second motor is controlled to drive the screw shaft to rotate, and the screw shaft drives the high-efficiency cutting component to move left and right until the high-efficiency cutting component moves to above the position where the cutting piece needs to be cut. At this time, the electric telescopic shell is controlled to move down until the laser cutting head is in a suitable position. At this time, the pressing roller and the slit burr processing roller can be stably pressed on the upper surface of the cutting material. At this time, the laser cutting head is turned on, and the first motor is controlled to drive the screw to rotate, and the screw drives the high-efficiency cutting component to move forward and backward to achieve cutting of the material. In this process, the pressing roller can also roll on the surface of the material, synchronously driving the heat dissipation fan on one side to rotate, and the heat dissipation fan can generate airflow to blow to the cutting area, so that the laser cutting area can be synchronously heat-dissipated. In this process, the slit burr treatment The processing roller can also roll synchronously above the cutting area of ​​the material. Due to the large downward pressure of the lower top spring of the slit burr processing roller, the slit burr processing roller can give a certain pressure to the material slit, so that some burrs and other defects generated in the cutting process can be flattened to improve the flatness of the material surface. Through this design, not only can the free and rapid position adjustment of the laser cutting component be completed, and it can be suitable for different cutting situations, but also the cutting area can be cooled and dissipated synchronously while the material is being cut, so as to effectively avoid heat accumulation in the cutting area and generate a heat-affected zone, thereby causing thermal deformation or thermal stress of the workpiece. At the same time, the slit can be processed synchronously during the cutting process, which can effectively eliminate defects such as burrs and cutting edge defects that are prone to appear near the cutting mouth of the material, which affect the cutting quality and greatly improve the actual application effect of the overall structure.

[0026] 2. In the present invention, a coolant box and a liquid storage bag are provided on the slit processing accessory. When the slit burr processing roller rolls, the extrusion blade at one end thereof can be driven to rotate synchronously. Every time the extrusion blade rotates one circle, it can stably contact and press the liquid storage bag once. The coolant in the liquid storage bag can be squeezed out and guided to the slit burr processing roller through the coolant conduit. As the slit burr processing roller rolls, it can be introduced into the slit, and the slit is further cooled, which can further avoid thermal deformation of the workpiece and improve the use effect of the equipment.

[0027] 3. In the present invention, by arranging a plurality of limit assemblies on the equipment, when the material is installed and positioned, the material is directly pushed into the installation groove on the top surface of the frame, at which time the material can contact one end of the conduction limit wheel, and the conduction limit wheel can be adaptively lifted after being squeezed, and at this time the material can be smoothly installed to the other end of the frame through the bottom of the conduction limit wheel. After the installation is completed, when the material is fixed, it is only necessary to directly control the motor to start and control the conduction limit wheel to rotate 90°, at which time the positioning of the material is completed, and when the cut material is subsequently disassembled, the conduction limit wheel can be re-controlled to rotate and reset, so that the material can be quickly pulled out, which greatly improves the efficiency of material installation and disassembly and improves the actual application effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of a laser cutting device.

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of a laser cutting device from a first angle.

[0030] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of a laser cutting device.

[0031] Figure 4 A schematic diagram of the exploded three-dimensional structure of a mounting frame in a laser cutting assembly.

[0032] Figure 5 It is a schematic diagram of the combined three-dimensional structure of a laser cutting component in a laser cutting component.

[0033] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of a laser cutting component in a laser cutting component.

[0034] Figure 7 It is a schematic diagram of the exploded three-dimensional structure of a limiting component in a laser cutting component.

[0035] Figure 8 It is a schematic diagram of the combined three-dimensional structure of the cutting processing accessories in a laser cutting component.

[0036] Fig. 9A schematic diagram of the exploded three-dimensional structure of a stable and flat accessory in a laser cutting component.

[0037] Fig.10 It is a schematic diagram of the exploded three-dimensional structure of a cutting processing accessory in a laser cutting component.

[0038] Legend:

[0039] 1. Controller; 2. Mounting frame; 3. Side slot; 4. Rack; 5. Screw; 6. First motor; 7. Limiting assembly; 71. Set spring; 72. Sliding shaft; 73. Side plate; 74. Motor; 75. Conducting limiting wheel; 8. High-efficiency cutting assembly; 81. Moving seat; 82. Electric telescopic shell; 83. Smoke absorber; 84. Stable and flat accessories; 841. Internal spring; 842. Moving frame; 843. Cooling fan; 84 4. Install the roller frame; 845. Travel wheel; 846. Pressing roller; 85. Slit processing accessories; 851. Install the elbow; 852. Telescopic rod; 853. Lower spring; 854. Side frame; 855. Slit burr processing roller; 856. Coolant box; 857. Liquid storage bag; 858. Extrusion blade; 859. Coolant duct; 86. Bottom groove; 87. Laser cutting head; 9. Inner groove; 10. Screw shaft; 11. Second motor. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-Figure 10 The present invention provides a technical solution: a laser cutting device, comprising a frame 4, a controller 1 is fixedly mounted on one side outer wall of the frame 4, two first motors 6 are fixedly mounted on one end of the frame 4, side grooves 3 are arranged on both side outer walls of the frame 4, a screw 5 is fixedly mounted on one end of the output shaft of the first motor 6, inner grooves 9 are arranged on both side inner walls of the frame 4, and a plurality of limit assemblies 7 are arranged inside the inner grooves 9;

[0042] The limiting assembly 7 includes a sliding shaft 72, which is fixedly mounted on the inner wall of the inner groove 9. A side plate 73 is slidably mounted on the outside of the sliding shaft 72. A sleeved spring 71 is sleeved on the outside of the sliding shaft 72. The bottom end of the sleeved spring 71 is fixedly connected to the top surface of the side plate 73. A motor 74 is fixedly mounted on the top surface of the side plate 73. A conduction limiting wheel 75 is fixedly mounted on one end of the output shaft of the motor 74. The bottom end of the conduction limiting wheel 75 is in close contact with and squeezed against the top surface of the frame 4.

[0043] The specific implementation method is as follows: when installing and positioning the material, the material is directly pushed into the installation groove on the top surface of the frame 4. At this time, the material can contact one end of the conduction limit wheel 75, and the conduction limit wheel 75 can be adaptively lifted after being squeezed. At this time, the material can be smoothly installed to the other end of the frame 4 through the bottom of the conduction limit wheel 75. After the installation is completed, when fixing the material, it is only necessary to directly control the motor 74 to start and control the conduction limit wheel 75 to rotate 90°. At this time, the positioning of the material is completed. When the cut material is subsequently disassembled, the conduction limit wheel 75 is re-controlled to rotate and reset, so that the material can be quickly pulled out, which greatly improves the efficiency of material installation and disassembly and improves the actual application effect of the equipment.

[0044] The present invention also discloses a laser cutting component, including a mounting frame 2, which is threadedly mounted on the outside of a screw rod 5 through a threaded hole arranged inside the mounting frame 2, a second motor 11 is fixedly mounted on an outer wall of one side of the mounting frame 2, a screw shaft 10 is fixedly mounted on one end of the output shaft of the second motor 11, and a high-efficiency cutting component 8 is threadedly mounted on the external thread of the screw shaft 10.

[0045] The high-efficiency cutting component 8 includes a movable seat 81, and the movable seat 81 is threadedly mounted on the outside of the screw rod 5 through a threaded hole arranged inside the movable seat 81. An electric telescopic shell 82 is fixedly mounted on the bottom of the movable seat 81, and two bottom grooves 86 are arranged on the bottom surface of the electric telescopic shell 82. A laser cutting head 87 is fixedly mounted at the middle position of the bottom surface of the electric telescopic shell 82. A smoke absorber 83 is fixedly mounted on the outside of the electric telescopic shell 82, and a plurality of adsorption holes are arranged on the bottom surface of the smoke absorber 83.

[0046] A stabilizing and leveling accessory 84 is movably installed inside the bottom groove 86, and the stabilizing and leveling accessory 84 includes a movable frame 842, and the movable frame 842 is slidably installed on the guide rail fixedly installed inside the bottom groove 86 through the sliding grooves set on the outer walls on both sides thereof, and the top of the movable frame 842 is fixedly installed with an internal spring 841, and the top of the internal spring 841 is fixedly connected to the inner wall of the bottom groove 86, and a mounting roller frame 844 is fixedly installed on the outer wall of one side of the movable frame 842, and a pressing roller 846 is rotatably installed on the inner side of the mounting roller frame 844 through a rotating shaft, and a walking wheel 845 is rotatably installed on the outer wall of the other side of the movable frame 842 through a rotating shaft, and a cooling fan 843 is fixedly installed on the outer wall of one side of the walking wheel 845, and the cooling fan 843 is located on one side of the laser cutting head 87.

[0047] A slit processing accessory 85 is fixedly installed on the outer wall of one side of the electric telescopic shell 82, and the slit processing accessory 85 includes a mounting elbow 851, and a telescopic rod 852 is movably installed inside the mounting elbow 851 through a lower top spring 853. A coolant box 856 is fixedly installed on the outside of one side of the telescopic rod 852, and a liquid storage bag 857 is arranged on the bottom surface of the coolant box 856. A coolant conduit 859 is arranged on the outer wall of one side of the liquid storage bag 857, and a side frame 854 is fixedly installed on the outer wall of the other side of the telescopic rod 852.

[0048] The specific implementation method is as follows: in the actual cutting process, the cutting piece is first installed on the frame 4, and the second motor 11 is controlled to drive the screw shaft 10 to rotate, and the screw shaft 10 drives the high-efficiency cutting component 8 to move left and right until the high-efficiency cutting component 8 moves to above the position where the cutting piece needs to be cut. At this time, the electric telescopic shell 82 is controlled to move down until the laser cutting head 87 is in a suitable position. At this time, the pressing roller 846 and the slit burr treatment roller 855 can be stably pressed on the upper surface of the cutting material. At this time, the laser cutting head 87 is turned on, and the first motor 6 is controlled to drive the screw 5 to rotate, and the screw 5 drives the high-efficiency cutting component 8 to move forward and backward. Now for the cutting of the material, during this process, the pressing roller 846 can also roll on the surface of the material, synchronously driving the heat dissipation fan 843 on one side to rotate, and the heat dissipation fan 843 can generate airflow and blow it to the cutting area, so as to perform synchronous heat dissipation treatment on the laser cutting area. During this process, the slit burr treatment roller 855 can also roll synchronously just above the cutting area of ​​the material. Due to the large downward pressure of the lower top spring 853 of the slit burr treatment roller 855, the slit burr treatment roller 855 can give a certain pressure to the material slit, so that some burrs and other defects generated in the cutting process can be flattened, thereby improving the flatness of the material surface.

[0049] Through this design, not only can the free and rapid position adjustment of the laser cutting component be completed, and it can be adapted to different cutting situations, but also the cutting area can be cooled and dissipated synchronously while the material is being cut, thereby effectively avoiding heat accumulation in the cutting area and generating a heat-affected zone, thereby causing thermal deformation or thermal stress of the workpiece. At the same time, the cutting seam can be processed synchronously during the cutting process, which can effectively eliminate defects such as burrs and cutting edge flaws that are prone to appear near the material cutting port, which affect the cutting quality and greatly improve the practical application effect of the overall structure.

[0050] A slit burr treatment roller 855 is rotatably mounted on one side of the side frame 854 via a rotating shaft, a mounting shaft is fixedly mounted on one end of the slit burr treatment roller 855, an extrusion blade 858 is fixedly mounted on the outside of the mounting shaft, and the extrusion blade 858 is located directly below the liquid storage bag 857, and the coolant conduit 859 is located above the slit burr treatment roller 855.

[0051] The specific implementation method is as follows: while the slit burr treatment roller 855 is rolling, the extrusion blade 858 at one end thereof can be driven to rotate synchronously. Every time the extrusion blade 858 rotates one circle, it can stably contact and press the liquid storage bag 857 once. The coolant in the liquid storage bag 857 can be squeezed out and discharged to the slit burr treatment roller 855 through the coolant conduit 859. As the slit burr treatment roller 855 rolls, it can be introduced into the slit, and the slit is further cooled, which can further avoid thermal deformation of the workpiece and improve the use effect of the equipment.

[0052] Working principle: In the actual cutting process, the cutting piece is first installed on the frame 4. When the material is installed and positioned, the material is directly pushed into the installation groove on the top surface of the frame 4. At this time, the material can contact one end of the conductive limit wheel 75. The conductive limit wheel 75 can be adaptively lifted after being squeezed. At this time, the material can be smoothly installed to the other end of the frame 4 through the bottom of the conductive limit wheel 75. After the installation is completed, when the material is fixed, it is only necessary to directly control the motor 74 to start and control the conductive limit wheel 75 to rotate 90°. At this time, the positioning of the material is completed. When the cut material is subsequently disassembled, the conductive limit wheel 75 is re-controlled to rotate and reset, and the material can be quickly pulled out;

[0053] During cutting, the second motor 11 is controlled to drive the screw shaft 10 to rotate, and the screw shaft 10 drives the high-efficiency cutting component 8 to move left and right until the high-efficiency cutting component 8 moves to the position where the cutting piece needs to be cut. At this time, the electric telescopic shell 82 is controlled to move down until the laser cutting head 87 is in a suitable position. At this time, the pressing roller 846 and the slit burr treatment roller 855 can be stably pressed on the upper surface of the cutting material. At this time, the laser cutting head 87 is turned on, and the first motor 6 is controlled to drive the screw 5 to rotate, and the screw 5 drives the high-efficiency cutting component 8 to move forward and backward to achieve cutting of the material. In this process, the pressing roller 846 and the slit burr treatment roller 855 can be pressed on the upper surface of the cutting material. The roller 846 can also roll on the surface of the material, synchronously driving the heat dissipation fan 843 on one side to rotate, and the heat dissipation fan 843 can generate airflow to blow toward the cutting area, so as to synchronously dissipate heat for the laser cutting area. During this process, the slit burr treatment roller 855 can also roll synchronously just above the cutting area of ​​the material. Due to the large downward pressure of the lower top spring 853 of the slit burr treatment roller 855, the slit burr treatment roller 855 can apply a certain pressure to the material slit, so as to flatten some burrs and other defects generated during the cutting process, thereby improving the flatness of the material surface.

[0054] When the slit burr treatment roller 855 rolls, the extrusion blade 858 at one end thereof can be driven to rotate synchronously. Every time the extrusion blade 858 rotates one circle, it can stably contact and press the liquid storage bag 857 once, and the coolant in the liquid storage bag 857 can be squeezed out and discharged to the slit burr treatment roller 855 through the coolant conduit 859. As the slit burr treatment roller 855 rolls, it can be introduced into the slit, and the slit is further cooled, which can further avoid thermal deformation of the workpiece and improve the use effect of the equipment.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser cutting device, comprising a frame (4), characterized in that: A controller (1) is fixedly mounted on an outer wall of one side of the frame (4); two first motors (6) are fixedly mounted on one end of the frame (4); side grooves (3) are provided on the outer walls of both sides of the frame (4); a screw rod (5) is fixedly mounted on one end of the output shaft of the first motor (6); inner grooves (9) are provided on the inner walls of both sides of the frame (4); and a plurality of limit assemblies (7) are provided inside the inner grooves (9).

2. A laser cutting device according to claim 1, characterized in that: The limit assembly (7) comprises a sliding shaft (72), the sliding shaft (72) is fixedly mounted on the inner wall of the inner groove (9), a side plate (73) is slidably mounted on the outside of the sliding shaft (72), a sleeve spring (71) is sleeved on the outside of the sliding shaft (72), and the bottom end of the sleeve spring (71) is fixedly connected to the top surface of the side plate (73).

3. A laser cutting device according to claim 2, characterized in that: A motor (74) is fixedly mounted on the top surface of the side plate (73), a transmission limit wheel (75) is fixedly mounted on one end of the output shaft of the motor (74), and the bottom end of the transmission limit wheel (75) is in close contact with and pressed against the top surface of the frame (4).

4. A laser cutting assembly, mounted on a laser cutting device as claimed in claims 1 to 3, comprising a mounting frame (2), characterized in that: The mounting frame (2) is threadedly mounted on the outside of the screw rod (5) via a threaded hole provided inside the mounting frame (2); a second motor (11) is fixedly mounted on an outer wall of one side of the mounting frame (2); a screw shaft (10) is fixedly mounted on one end of an output shaft of the second motor (11); and a high-efficiency cutting assembly (8) is threadedly mounted on the outer surface of the screw shaft (10).

5. A laser cutting assembly according to claim 4, characterized in that: The high-efficiency cutting assembly (8) comprises a movable seat (81), wherein the movable seat (81) is threadedly mounted on the outside of the screw rod (5) via a threaded hole arranged inside the movable seat (81), an electric telescopic shell (82) is fixedly mounted on the bottom of the movable seat (81), and two bottom grooves (86) are arranged on the bottom surface of the electric telescopic shell (82).

6. A laser cutting assembly according to claim 5, characterized in that: A laser cutting head (87) is fixedly mounted at the middle position of the bottom surface of the electric telescopic shell (82), a smoke absorber (83) is fixedly mounted outside the electric telescopic shell (82), and a plurality of adsorption holes are arranged on the bottom surface of the smoke absorber (83).

7. A laser cutting assembly according to claim 6, characterized in that: A stabilizing and leveling accessory (84) is movably installed inside the bottom groove (86), and the stabilizing and leveling accessory (84) includes a movable frame (842). The movable frame (842) is slidably installed on a guide rail fixedly installed inside the bottom groove (86) through sliding grooves arranged on the outer walls on both sides of the movable frame (842). An internal spring (841) is fixedly installed on the top of the movable frame (842), and the top of the internal spring (841) is fixedly connected to the inner wall of the bottom groove (86).

8. A laser cutting assembly according to claim 7, characterized in that: A mounting roller frame (844) is fixedly mounted on an outer wall on one side of the movable frame (842); a pressing roller (846) is rotatably mounted on the inner side of the mounting roller frame (844) via a rotating shaft; a walking wheel (845) is rotatably mounted on an outer wall on the other side of the movable frame (842) via a rotating shaft; a cooling fan (843) is fixedly mounted on an outer wall on one side of the walking wheel (845); and the cooling fan (843) is located on one side of the laser cutting head (87).

9. A laser cutting assembly according to claim 8, characterized in that: A slitting processing accessory (85) is fixedly mounted on an outer wall of one side of the electric telescopic shell (82), and the slitting processing accessory (85) includes a mounting elbow (851), and a telescopic rod (852) is movably mounted inside the mounting elbow (851) via a lower top spring (853), and a coolant box (856) is fixedly mounted on the outside of one side of the telescopic rod (852), and a liquid storage bag (857) is arranged on the bottom surface of the coolant box (856), and a coolant conduit (859) is arranged on an outer wall of one side of the liquid storage bag (857).

10. A laser cutting assembly according to claim 9, characterized in that: A side frame (854) is fixedly mounted on the outer wall of the other side of the telescopic rod (852); a slit burr processing roller (855) is rotatably mounted on one side of the side frame (854) via a rotating shaft; a mounting shaft is fixedly mounted on one end of the slit burr processing roller (855); an extrusion blade (858) is fixedly mounted on the outside of the mounting shaft; the extrusion blade (858) is located directly below the liquid storage bag (857); and the coolant conduit (859) is located above the slit burr processing roller (855).

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