A laser cutting device for sheet metal processing

Abstract

The utility model discloses a laser cutting device for metal plate processing relates to laser cutting technical field, include: organism, laser generator and laser cutting head, the top of organism is installed with laser generator, the bottom of laser generator is connected with laser cutting head, the laser cutting head is connected with laser generator through the connecting assembly of automatic distance adjustment, the outside of laser cutting head is installed with protection subassembly. Through the cooperation between various components, set up the connecting assembly of automatic distance adjustment between laser cutting head and laser generator, the automatic focusing module in base box, control system and transmission structure cooperate and work, can real -time monitoring laser cutting head and the distance of metal plate surface, and according to distance change automatic adjustment laser cutting head position, ensure that laser focal point is always in the best cutting point, effectively solved the cutting edge not neat, the problem such as the slit width is not consistent, improve the cutting precision and processing quality of metal plate greatly.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to a laser cutting device for metal plate processing. Background Technology

[0002] Track plates are key chassis components of construction machinery (such as excavators, bulldozers, and tracked cranes), and their processing quality directly affects the operational stability, service life, and safety of the equipment. Traditional metal plate processing mainly relies on mechanical cutting (such as shearing and stamping) and flame cutting (such as oxy-acetylene cutting and plasma cutting), but these methods have significant limitations: mechanical cutting easily produces burrs and burrs, requiring secondary processing; flame cutting results in wide kerfs and large heat-affected zones, leading to material deformation and thicker oxide layers, increasing subsequent grinding costs. In addition, high-strength alloy steels and special materials (such as titanium alloys and composite materials) are sensitive to cutting heat input, and traditional methods are prone to causing cracks or performance degradation, making it difficult to meet the needs of high-end equipment manufacturing.

[0003] As the manufacturing industry transforms towards high precision, high efficiency, and green manufacturing, laser cutting technology has become an ideal choice for metal sheet processing due to its unique advantages. Laser cutting uses a high-power-density laser beam focused on the surface of the material, causing the material to melt, vaporize, or ablate rapidly. Combined with auxiliary gas to remove slag, it achieves non-contact cutting. For example, the utility model patent with authorization announcement number CN 223277365 U discloses a sheet metal laser cutting machine, including a machine tool. One side of the machine tool is hinged to a movable plate, and the bottom of the movable plate is fixedly connected to two sets of pushing components.

[0004] While capable of cutting metal sheets, the laser cutting device still has some minor drawbacks in practical use. For example, during the cutting process, the horizontal anti-slip ribs on the metal sheet surface cause fluctuations in the distance between the cutting head and the sheet, leading to deviations of the laser focus from the optimal cutting point. This affects cutting accuracy, resulting in uneven cut edges, inconsistent kerf widths, and reduced processing quality. Therefore, this invention designs a laser cutting device for metal sheet processing to solve these problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a laser cutting device for metal plate processing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A laser cutting device for metal plate processing includes: a body, a laser generator, a laser cutting head, and a stripping plate. The laser generator is mounted on top of the body, and the laser cutting head is connected to the bottom of the laser generator. The stripping plate is mounted below the laser cutting head and connected to the body. The laser cutting head is connected to the laser generator via an automatically adjustable distance connecting assembly. A protective assembly is mounted on the outside of the laser cutting head. The connecting assembly includes: a base box, an automatic focusing module, a control system, and a transmission structure installed inside the base box. The top of the base box is fixedly connected to the bottom of the laser generator, and a vertical cylinder is inserted into the bottom of the base box. The vertical cylinder is fixedly connected to the transmission structure inside the base box, and a pair of distance sensors are installed at the bottom of the vertical cylinder.

[0007] Preferably, a transparent cover is fitted onto the outside of the laser cutting head. A rubber tube is fixed to the inner wall of the transparent cover, and the inner wall of the rubber tube is pressed against the laser cutting head. A pair of horizontal plates are connected to the top of the transparent cover. A shock absorber is fixed to the upper surface of the horizontal plate and is fixedly connected to the base box. A tension spring is fitted onto the outside of the shock absorber, and the two ends of the tension spring are fixedly connected to the base box and the horizontal plate, respectively.

[0008] Preferably, the vertical cylinder passes through the base box through a soft sleeve, the soft sleeve is in contact with the outer wall of the vertical cylinder, the soft sleeve is abutted against the base box, the lower surface of the soft sleeve is abutted with a retaining ring, and a plurality of first bolts are inserted into the lower surface of the retaining ring, the first bolts sequentially pass through the retaining ring and the soft sleeve and are threadedly connected to the base box.

[0009] Preferably, the inner wall of the rubber tube is in contact with the contact surface of the laser cutting head.

[0010] Preferably, a pair of pre-embedded blocks are embedded at the top of the transparent cover, and a second bolt is inserted into the upper surface of the horizontal plate, the second bolt passing through the horizontal plate and threadedly connected to the pre-embedded blocks.

[0011] Preferably, the bottom end of the second bolt has a tapered structure.

[0012] Preferably, a protective sleeve is fitted on the outside of the second bolt, and the protective sleeve is threadedly connected to the cross plate.

[0013] Preferably, a folding cylinder is fitted on the outer side of the shock absorber, and protruding rings are inserted into the upper and lower ends of the inner wall of the folding cylinder. The two protruding rings are fixedly connected to the contact surfaces of the base box and the cross plate, respectively. Pipe clamps are fitted into the upper and lower ends of the outer wall of the folding cylinder, and the pipe clamps are tightly abutted against the folding cylinder.

[0014] Preferably, the stripping plate is composed of multiple toothed plates, and slot plates are installed at both ends of the multiple toothed plates. Multiple slots are opened on the surface of the slot plates. The toothed plate is connected to the slot plates through the slots. Multiple third bolts are inserted into the upper surface of the slot plates. The third bolts pass through the slot plates and are threaded to the machine body.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. Through the coordinated cooperation between various components, an automatic distance adjustment connection component is set between the laser cutting head and the laser generator. The automatic focusing module, control system and transmission structure in the base box work together. With the distance sensor installed at the bottom of the vertical cylinder, the distance between the laser cutting head and the surface of the metal plate can be monitored in real time, and the position of the laser cutting head can be automatically adjusted according to the distance change to ensure that the laser focus is always at the optimal cutting point. This effectively solves the problems of uneven cutting edges and inconsistent kerf width, and greatly improves the cutting accuracy and processing quality of the metal plate. 2. Through the coordinated operation of various components, the transparent cover is fitted on the outside of the laser cutting head, which can effectively block the spatter, slag and other debris generated during the cutting process, prevent them from directly contacting the laser cutting head, reduce damage to the laser cutting head, and extend the service life of the laser cutting head. 3. Through the coordinated operation of various components, the rubber sleeve fixed to the inner wall of the transparent cover is pressed tightly against the laser cutting head, and the contact surfaces fit together, which can provide stable support for the transparent cover and prevent it from shaking or shifting during the cutting process. This creates an elastic connection between the transparent cover and the base box, further enhancing the stability of the transparent cover. Even if it is subjected to external impact during the cutting process, it can quickly return to its original position and ensure the protective effect.

[0016] 4. Through the coordinated operation of various components, when the metal plate is placed on the surface of the stripper plate, the teeth at the top of the toothed plate are embedded in the protruding gaps of the anti-slip gripping ribs of the metal plate. At the same time, the gaps between multiple toothed plates also cooperate with the protrusions to form a tight interlocking state. This design can ensure the stability of the metal plate placed on the surface of the stripper plate without the need for additional clamps, which greatly improves the convenience and efficiency of operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a laser cutting device for metal plate processing according to the present invention; Figure 2 This is an enlarged view of point A in diagram 1; Figure 3 This is an enlarged view of point B in diagram 2; Figure 4 This is a three-dimensional structural diagram of a laser cutting device for metal plate processing according to the present invention; Figure 5 for Figure 4 Enlarged view of point C in the middle.

[0019] The labels in the diagram represent: 1. Body, 2. Laser generator, 3. Laser cutting head, 4. Base box, 5. Vertical cylinder, 6. Distance sensor, 7. Soft sleeve, 8. Abutment ring, 9. First bolt, 10. Transparent cover, 11. Rubber sleeve, 12. Horizontal plate, 13. Shock absorber, 14. Third bolt, 15. Tension spring, 16. Embedded block, 17. Second bolt, 18. Protective sleeve, 19. Folding cylinder, 20. Convex ring, 21. Pipe clamp, 22. Toothed plate, 23. Slot plate, 24. Slot. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In some embodiments, please refer to the accompanying drawings. Figures 1-5A laser cutting device for metal plate processing includes: a body 1, a laser generator 2, a laser cutting head 3, and a stripper plate. The body 1 is the main body of the laser cutting machine. The laser generator 2 is installed on top of the body 1. The laser generator 2 is one of the core components of the entire device. It adopts advanced solid-state laser technology and can generate a high-energy, highly focused laser beam. Its internal components include a laser crystal, a pump source, and an optical resonant cavity. Through precise energy control and optical adjustment, it ensures stable output and high-quality focusing of the laser beam. The bottom of the laser generator 2 is connected to the laser cutting head 3. The laser cutting head 3 is the part where the laser directly interacts with the metal plate material. It adopts a special optical design and cooling structure to withstand the irradiation of the high-energy laser beam and the reaction force of the high-temperature melting material. The head of the laser cutting head 3 is made of wear-resistant and high-temperature resistant ceramic material, which effectively extends its service life. The stripper plate is installed below the laser cutting head 3 and is connected to the body 1. The laser cutting head 3 is connected to the body 1 via an automatically adjustable connection. The component is connected to the laser generator 2. A protective component is installed on the outside of the laser cutting head 3. The connecting component includes a base box 4. As a key component connecting the laser generator 2 and the laser cutting head 3, the base box 4 not only provides support and connection but also provides installation space for the internal autofocus module, control system, and transmission structure. The base box 4 adopts a sealed design, which can effectively prevent dust and impurities generated during the cutting process from entering the interior and protect the internal precision components from contamination. The autofocus module is installed inside the base box 4. This module uses a high-precision distance sensor 6 and advanced algorithms to monitor the distance between the laser cutting head 3 and the surface of the metal plate in real time and automatically adjust it according to the preset optimal cutting distance parameters to ensure that the laser focus is always at the optimal cutting point, achieving high-precision laser cutting. The control system is the "brain" of the entire device. It uses a high-performance microprocessor and advanced control software to precisely control and coordinate the laser generator 2, autofocus module, transmission structure, etc. Through communication with the host computer, the control system can also realize the programming and real-time monitoring of the cutting path, improving the automation level and production efficiency of the cutting operation. The transmission structure adopts a high-precision servo motor and ball screw transmission method, which can realize the precise up and down movement of the laser cutting head 3. The top of the base box 4 is fixedly connected to the bottom of the laser generator 2. The bottom of the base box 4 is inserted with a vertical cylinder 5, which is fixedly connected to the internal transmission structure of the base box 4. The transmission structure is an electric push rod that can be programmed and controlled. The output end of the electric push rod is fixedly connected to the vertical cylinder 5. The vertical cylinder 5 is made of high-strength aluminum alloy material, which has sufficient rigidity and lightweight characteristics, and can ensure smooth up and down movement under the drive of the transmission structure. A pair of distance sensors 6 are fixedly installed at the bottom of the vertical cylinder 5. The distance sensors 6 adopt the laser triangulation measurement principle, which has the advantages of high measurement accuracy, fast response speed and strong anti-interference ability, and can accurately monitor the distance change between the laser cutting head 3 and the surface of the metal plate in real time.

[0022] In some embodiments, such as Figures 1-4 As shown in the preferred embodiment of the laser cutting device for metal plate processing of this utility model, the protective component includes: a transparent cover 10, which is fitted on the outside of the laser cutting head 3. The transparent cover 10 is made of high-strength, high-temperature resistant transparent polycarbonate material, which has good optical transparency and impact resistance. It can effectively block a large amount of spatter and slag generated by the melting and vaporization of the metal plate material, preventing them from directly contacting the laser cutting head 3 and avoiding damage to the laser cutting head 3, thereby extending the service life of the laser cutting head 3. A rubber sleeve 11 is fixed to the inner wall of the transparent cover 10. The rubber sleeve 11 is made of high-temperature resistant, wear-resistant silicone rubber material, which has good elasticity and sealing performance. The inner wall of the rubber sleeve 11... The transparent housing 10 is tightly abutted against the laser cutting head 3, with the contact surfaces fitting together, providing stable support and preventing it from shaking or shifting during cutting. A pair of horizontal plates 12 are connected to the top of the transparent housing 10. The horizontal plates 12 are made of high-strength aluminum alloy, possessing sufficient rigidity and strength to withstand various forces and vibrations experienced by the transparent housing 10 during cutting. A shock absorber 13 is fixedly connected to the upper surface of the horizontal plates 12, and the shock absorber 13 is fixedly connected to the base box 4. A tension spring 15 is fitted on the outer side of the shock absorber 13. The tension spring 15 is made of high-elasticity stainless steel spring wire, possessing good elasticity and fatigue life. The two ends of the tension spring 15 are fixedly connected to the base box 4 and the horizontal plates 12, respectively. When the transparent housing 10 is subjected to external forces... When subjected to impact, the tension spring 15 undergoes elastic deformation, absorbing and buffering part of the impact force. The shock absorber 13 provides damping for the tension spring 15, enabling it to quickly regain stability. The shock absorber 13 is a mature and well-known structural component, and its specific working principle is fully understandable to those skilled in the art, so it will not be elaborated further. This further enhances the stability of the transparent cover 10 and ensures the protective effect. The vertical cylinder 5 penetrates the base box 4 through the soft sleeve 7. The soft sleeve 7 is made of high-temperature resistant and flexible silicone rubber material, which can effectively prevent dust and impurities generated during the cutting process from entering the interior of the base box 4, protecting the precision components such as the automatic focusing module, control system, and transmission structure inside the base box 4 from contamination and ensuring the normal operation of the device. The soft sleeve 7 and the vertical... The outer wall of the sleeve 5 is fitted together, the soft sleeve 7 is pressed against the base box 4, and the lower surface of the soft sleeve 7 is pressed against the abutment ring 8. The abutment ring 8 is made of high-strength aluminum alloy material, which has sufficient rigidity and strength to provide stable support and clamping force for the soft sleeve 7. Multiple first bolts 9 are inserted into the lower surface of the abutment ring 8. The first bolts 9 pass through the abutment ring 8 and the soft sleeve 7 in sequence and are threadedly connected to the base box 4. By tightening the first bolts 9, the abutment ring 8 and the soft sleeve 7 can be firmly fixed to the base box 4 to ensure the sealing performance of the soft sleeve 7. The inner wall of the rubber sleeve 11 fits with the contact surface of the laser cutting head 3. This fitting design can effectively improve the sealing effect and prevent splashes and slag from entering the interior of the transparent cover 10 from the contact surface, further protecting the laser cutting head 3.

[0023] In some embodiments, such as Figures 1-4 As shown, in a preferred embodiment of the laser cutting device for metal plate processing of this utility model, a pair of pre-embedded blocks 16 are embedded at the top of the transparent cover 10. The pre-embedded blocks 16 are made of high-strength metal material and are tightly combined with the transparent cover 10 through injection molding process, providing a stable fixing point for the installation of the second bolt 17. A second bolt 17 is inserted into the upper surface of the horizontal plate 12. The second bolt 17 passes through the horizontal plate 12 and is threadedly connected to the embedded block 16. By tightening the second bolt 17, the horizontal plate 12 can be firmly fixed to the transparent cover 10, ensuring the connection strength and stability between the transparent cover 10 and the horizontal plate 12. The bottom end of the second bolt 17 has a tapered structure. This tapered structure can make the connection between the second bolt 17 and the embedded block 16 tighter when tightening the second bolt 17, improving the reliability of the connection. A protective sleeve 18 is fitted on the outside of the second bolt 17. The protective sleeve 18 is made of high-strength plastic material, which can effectively protect the second bolt 17 from external environmental corrosion and damage, extending the service life of the second bolt 17. The protective sleeve 18 is threadedly connected to the horizontal plate 12, making installation and disassembly convenient. The shock absorber 13 is fitted with a folding cylinder 19 on its outer side. The folding cylinder 19 is made of high-temperature resistant and flexible silicone rubber material, which has good expansion and contraction performance and sealing performance. The upper and lower ends of the inner wall of the folding cylinder 19 are inserted with convex rings 20, which provide stable fixing points for the connection between the folding cylinder 19 and the base box 4 and the horizontal plate 12. The two convex rings 20 are fixedly connected to the contact surfaces of the base box 4 and the horizontal plate 12, respectively. The upper and lower ends of the outer wall of the folding cylinder 19 are fitted with pipe clamps 21, which are made of high-strength metal material. By tightening the pipe clamps 21 and the convex rings 20, the folding cylinder 19 can be firmly fixed on the base box 4 and the horizontal plate 12, ensuring the sealing performance of the folding cylinder 19. This can play a certain role in protecting components such as the tension spring 15 and reduce the impact of external factors on the protective components.

[0024] In some embodiments, such as Figure 1 , Figure 4 and Figure 5As shown, in a preferred embodiment of the laser cutting device for metal plate processing according to this utility model, the stripper plate is composed of multiple toothed plates 22. Each toothed plate 22 has a unique toothed design at its top, with a sharp triangular shape and a certain curvature. This special toothed structure can better match the protrusions of the transverse anti-slip gripping ribs on the surface of the metal plate. A uniform and suitable gap is reserved between the multiple toothed plates 22. The size of this gap is precisely calculated so that it can precisely engage with the protrusions of the transverse anti-slip gripping ribs on the surface of the metal plate. Slot plates 23 are installed at both ends of the multiple toothed plates 22. The slot plates 23 are made of high-strength alloy steel, precision machined, and have a smooth surface with high flatness to ensure a stable connection with the toothed plates 22. The surface of the slot plates 23 has... Multiple slots 24 are provided, the shape and size of which match the end of the toothed plate 22. The toothed plate 22 is connected to the slot plate 23 by inserting through the slots 24. This insertion method provides a firm connection that can withstand the pressure generated when the metal plate is placed and the vibration generated during the cutting process. Multiple third bolts 14 are inserted into the upper surface of the slot plate 23. The third bolts 14 are made of high-strength stainless steel, which has good corrosion resistance and tensile strength. The third bolts 14 pass through the slot plate 23 and are threadedly connected to the machine body 1. Through this threaded connection, the slot plate 23 and the toothed plate 22 connected to it are firmly fixed to the machine body 1, which further enhances the overall stability of the stripper plate and ensures that the stripper plate will not move or shake during the laser cutting of the metal plate, thereby ensuring the cutting accuracy and quality.

[0025] Working principle: Initial preparation and laser transmission phase: When processing metal plates, the metal plate to be cut is first placed stably on the designated working position of the machine body 1, and the metal plate is ensured to be firmly fixed to prevent movement during the cutting process. Then, the power supply of the device is turned on, and the laser generator 2 and related control system are started. At this time, the device enters the cutting working state, and the laser generator 2 starts to work, generating a high-energy laser beam. The laser beam is emitted from the emitting end of the laser generator 2 and transmitted downward to the base box 4 connected to its bottom end through a specific optical transmission path. The base box 4, as a key component connecting the laser generator 2 and the laser cutting head 3, not only plays a supporting and connecting role, but also provides installation space for the internal automatic focusing module, control system and transmission structure.

[0026] Focusing, cutting, and protection stages: During automatic focusing, a pair of distance sensors 6 begin working in real time, continuously monitoring the distance between the laser cutting head 3 and the metal plate surface. Since the metal plate surface may have unevenness or minor local protrusions, the distance sensors 6 can sensitively capture these distance changes and rapidly transmit the distance data as electrical signals to the control system inside the base box 4. Upon receiving the data from the distance sensors 6, the control system immediately analyzes and processes it. By comparing it with the pre-set optimal cutting distance parameters, it accurately determines whether the current distance between the laser cutting head 3 and the metal plate surface deviates from the optimal cutting point. If a distance deviation is detected, the control system quickly generates corresponding adjustment commands based on the direction and degree of the deviation. The transmission structure inside the base box 4 then... Upon receiving the adjustment command, the system immediately begins operation, driving the vertical cylinder 5 to move up and down via a specific mechanical transmission method. Since the laser cutting head 3 is connected to the base box 4 through the vertical cylinder 5, the up-and-down movement of the vertical cylinder 5 directly alters the position of the laser cutting head 3, thereby automatically adjusting the distance between the laser cutting head 3 and the metal plate surface. This ensures the laser focus is always at the optimal cutting point. After automatic focusing, the laser cutting head 3 focuses the laser beam transmitted from the base box 4 onto the surface of the metal plate. The high-energy laser beam generates extremely high temperatures at the focal point, causing the metal plate material to rapidly melt and vaporize. Simultaneously, under the blowing action of auxiliary gases (such as oxygen, nitrogen, etc.), the molten and vaporized material is blown away from the cutting kerf, forming a cutting gap and achieving the cutting process of the metal plate. As the laser cutting head 3 moves on the machine body 1, it gradually completes the cutting task of the entire metal plate according to the pre-set cutting path. During the cutting process, the protective components also work together. The transparent cover 10, which is fitted on the outside of the laser cutting head 3, plays an important role. It can effectively block a large amount of spatter and slag generated by the melting and vaporization of the metal plate material, preventing them from directly contacting the laser cutting head 3 and avoiding damage to the laser cutting head 3, thereby extending the service life of the laser cutting head 3. The rubber sleeve 11 fixed to the inner wall of the transparent cover 10 is pressed against the laser cutting head 3, and the contact surface fits, providing stable support for the transparent cover 10 and preventing it from shaking or shifting during the cutting process. When the transparent cover 10 is subjected to external impact, the tension spring 15 will undergo elastic deformation to absorb the impact. The shock absorber 10 buffers the impact force, allowing the transparent cover 10 to quickly return to its original position, further enhancing the stability of the transparent cover 10 and ensuring the protective effect. The vertical cylinder 5 passes through the base box 4 through the soft sleeve 7. The soft sleeve 7 fits against the outer wall of the vertical cylinder 5 and abuts against the base box 4, and is fixed by the abutment ring 8 and the first bolt 9. This effectively prevents dust, impurities and other contaminants generated during the cutting process from entering the interior of the base box 4, protecting the precision components such as the automatic focusing module, control system and transmission structure inside the base box 4 from contamination and ensuring the normal operation of the device. In addition, the folding cylinder 19 fitted on the outside of the shock absorber 13 is fixedly connected to the base box 4 and the horizontal plate 12 through the convex ring 20 and is abutted by the pipe clamp 21, which can play a certain protective role for components such as the tension spring 15 and reduce the impact of external factors on the protective components.

[0027] Cutting completion and device reset stage: After the entire metal plate is cut, the laser generator 2 stops emitting the laser beam, the laser cutting head 3 stops moving, and the control system controls the transmission structure to return the laser cutting head 3 to its initial position. At the same time, the auxiliary gas supply is turned off. At this time, the operator can remove the cut metal plate from the machine body 1 and perform necessary cleaning and maintenance on the device to prepare for the next cutting operation.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laser cutting device for processing metal plates, comprising: The machine body (1), laser generator (2), laser cutting head (3) and stripping plate are provided. The laser generator (2) is installed on the top of the machine body (1). The laser cutting head (3) is connected to the bottom of the laser generator (2). The stripping plate is installed below the laser cutting head (3). The stripping plate is connected to the machine body (1). The laser cutting head (3) is connected to the laser generator (2) through an automatically adjustable distance connecting component. The outer side of the laser cutting head (3) is equipped with a protective component. The connecting components include: a base box (4), an automatic focusing module, a control system and a transmission structure are installed inside the base box (4), the top of the base box (4) is fixedly connected to the bottom of the laser generator (2), a vertical cylinder (5) is inserted into the bottom of the base box (4), the vertical cylinder (5) is fixedly connected to the transmission structure inside the base box (4), and a pair of distance sensors (6) are installed at the bottom of the vertical cylinder (5).

2. The laser cutting apparatus for metal plate processing according to claim 1, characterized in that, The protective assembly includes: a transparent cover (10), which is fitted on the outside of the laser cutting head (3). A rubber tube (11) is fixed to the inner wall of the transparent cover (10). The inner wall of the rubber tube (11) is pressed against the laser cutting head (3). A pair of horizontal plates (12) are connected to the top of the transparent cover (10). A shock absorber (13) is fixed to the upper surface of the horizontal plate (12). The shock absorber (13) is fixedly connected to the base box (4). A tension spring (15) is fitted on the outside of the shock absorber (13). The two ends of the tension spring (15) are fixedly connected to the base box (4) and the horizontal plate (12) respectively.

3. The laser cutting apparatus for metal plate processing according to claim 1, characterized in that, The vertical cylinder (5) passes through the base box (4) through the soft sleeve (7). The soft sleeve (7) is in contact with the outer wall of the vertical cylinder (5) and abuts against the base box (4). The lower surface of the soft sleeve (7) abuts against a retaining ring (8). Multiple first bolts (9) are inserted into the lower surface of the retaining ring (8). The first bolts (9) pass through the retaining ring (8) and the soft sleeve (7) in sequence and are threadedly connected to the base box (4).

4. The laser cutting apparatus for metal plate processing according to claim 2, characterized in that, The inner wall of the rubber tube (11) is in contact with the laser cutting head (3).

5. The laser cutting apparatus for metal plate processing according to claim 2, characterized in that, A pair of embedded blocks (16) are embedded at the top of the transparent cover (10), and a second bolt (17) is inserted into the upper surface of the horizontal plate (12). The second bolt (17) passes through the horizontal plate (12) and is threadedly connected to the embedded blocks (16).

6. The laser cutting apparatus for metal plate processing according to claim 5, characterized in that, The bottom end of the second bolt (17) is tapered.

7. The laser cutting apparatus for metal plate processing according to claim 5, characterized in that, The outer side of the second bolt (17) is fitted with a sleeve (18), which is threadedly connected to the cross plate (12).

8. The laser cutting apparatus for metal plate processing according to claim 2, characterized in that, The shock absorber (13) is fitted with a folding cylinder (19) on its outer side. The inner wall of the folding cylinder (19) is fitted with a convex ring (20) at both the upper and lower ends. The two convex rings (20) are fixedly connected to the contact surfaces of the base box (4) and the cross plate (12) respectively. The outer wall of the folding cylinder (19) is fitted with a pipe clamp (21) at both the upper and lower ends. The pipe clamp (21) is pressed against the folding cylinder (19).

9. The laser cutting apparatus for metal plate processing according to claim 1, characterized in that, The stripping plate is composed of multiple toothed plates (22), and slot plates (23) are installed at both ends of the multiple toothed plates (22). Multiple slots (24) are opened on the surface of the slot plates (23). The toothed plates (22) are connected to the slot plates (23) through the slots (24). Multiple third bolts (14) are inserted into the upper surface of the slot plates (23). The third bolts (14) penetrate the slot plates (23) and are threadedly connected to the machine body (1).

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