A laser cutting device for hot cutting of wind power panel material and a cutting method thereof

Abstract

The present application relates to the field of laser cutting, and specifically discloses a laser cutting device for hot cutting of wind power plate and a cutting method thereof, which comprises a cutting bed, a laser head and a moving assembly. The moving assembly drives the laser head to cut the plate placed on the cutting bed. The cutting bed has a plurality of densely distributed support pieces. The top ends of the plurality of support pieces have a plurality of sharp parts, which keep the plate horizontal. There is a gap between the adjacent two support pieces. The gap has a turnover rod, which can be turned up and down by 180 degrees. The sharp parts at the top ends of the support pieces support the plate, which not only ensures stable and horizontal cutting, but also prevents damage with the smallest contact area. At the same time, the conveying wheels of the turnover rod can lift the plate after turning over, replacing the traditional lifting appliance to complete the feeding and discharging, significantly reducing the site occupation, solving the problem of dependence on large lifting appliances and space waste in the prior art, and improving the workshop space utilization.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to a laser cutting device and method for thermal cutting of wind turbine panels. Background Technology

[0002] Laser cutting equipment for thermal cutting of wind turbine panels is a type of thermal cutting equipment that uses a high-power laser beam to perform high-precision cutting of thick steel plates. Its working principle is as follows: a laser beam is generated by a laser and focused into a high-energy-density spot by an optical path system. This spot is then irradiated onto thick steel plates such as wind turbine towers, nacelle bases, and gearbox supports, causing the local material to melt and vaporize rapidly. At the same time, a coaxial high-pressure auxiliary gas (such as oxygen or nitrogen) blows away the molten metal. As the CNC worktable or cutting head moves relative to each other, a kerf is formed, thereby cutting the entire sheet of material into a pre-set shape in one go.

[0003] The shortcomings of existing thermal cutting equipment are as follows: due to the large volume and weight of the sheet metal, lifting devices are required when feeding or unloading the sheet metal into or out of the cutting bed. For example, a cutting device for special vehicle modification disclosed in prior art publication CN121373846A includes a laser cutting equipment body. The worktable of the laser cutting equipment body has through channels on both sides. Two symmetrically arranged vertical guide rods are fixed in each through channel. The two sets of support toothed racks are used alternately through a switching structure of "double lifting rod + Z-shaped transmission channel". Although some laser cutting equipment can transport the sheet metal through conveyor rollers, the laser may penetrate the sheet metal and damage the conveyor rollers during the cutting process. Therefore, existing technologies generally use support plates with pointed tips to support the sheet metal, maximizing the reliability of the cutting bed.

[0004] In summary, existing technologies occupy a large area and cannot make full use of the space of cutting equipment, resulting in the need to rely on lifting devices when transporting the sheet metal. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] This invention provides a laser cutting device and method for thermal cutting of wind turbine sheet metal, which solves the problem of inconvenient sheet metal conveying in existing technologies. The specific solution is as follows: On one hand, this invention provides a laser cutting device for thermal cutting of wind turbine sheet metal, including a cutting bed, a laser head, and a moving assembly. The moving assembly drives the laser head to cut the sheet metal placed on the cutting bed. The cutting bed has several densely distributed support plates, each with a pointed tip at its top, which keeps the sheet metal horizontal. There is a gap between adjacent support plates, within which a rotating rod is installed. The rotating rod can rotate 180° vertically. One side of the rotating rod is equipped with an anti-laser plate, and the other side is equipped with a conveyor wheel. A suction cup is installed on the moving assembly, and the suction cup avoids the processing area of ​​the sheet metal through an avoidance assembly. When the rotating rod rotates to the point where the conveyor wheel faces upward, the conveyor wheel lifts the sheet metal, and then the suction cup adheres to the sheet metal. The sheet metal moves with the suction cup and the moving assembly, moving the sheet metal in the feeding or unloading direction of the cutting bed. The pointed tips of the support plates support the plate metal. The material ensures stable horizontal positioning during cutting while minimizing contact area to prevent damage. Simultaneously, the conveyor wheels of the tilting rod can lift the sheet material after tilting, replacing traditional lifting tools for feeding / unloading, significantly reducing space occupation and solving the problems of reliance on large lifting tools and wasted space in existing technologies, thus improving workshop space utilization. By adopting a double-sided design for the tilting rod, one side is made of laser-resistant material to resist cutting heat radiation and protect the internal structure; the other side has conveyor wheels for sheet material transfer, thus integrating support and conveying functions into a single component. This avoids the risk of traditional conveyor rollers being damaged by laser penetration, and optimizes the spatial layout through high-low position switching, improving equipment compactness. By integrating suction cups and avoidance components, negative pressure adsorption of the top surface of the sheet material eliminates reliance on lifting tools, making it particularly suitable for large-size wind turbine sheet materials, achieving automated feeding / unloading, reducing manual labor intensity, while the avoidance components ensure that the adsorption process does not interfere with the cutting area.

[0007] Preferably, limit blocks are installed at both ends of the flipping rod, with the limit blocks and the conveyor wheel on the same side, and the side of the limit block closest to the plate is abutted by a roller.

[0008] Preferably, the moving component is also equipped with an extruder, the movable end of which presses downward to separate the cut portion of the sheet from the sheet body.

[0009] Preferably, the moving component includes a transverse moving beam and a longitudinal moving block. The transverse moving beam moves along the feeding or discharging direction of the cutting bed, and the longitudinal moving block moves along the longitudinal direction of the transverse moving beam, so that the moving range of the longitudinal moving block can cover the top projection surface of the plate. The laser head and the extrusion component are fixed to the longitudinal moving block. By covering the processing area with the moving component, combined with the high and low position switching of the flipping rod and the dense distribution of the support plates, the functions of support, cutting and conveying are vertically superimposed, which greatly reduces the floor space occupied by the equipment and solves the problem of space waste caused by functional zoning in the prior art.

[0010] Preferably, several flipping rods are arranged laterally on the cutting bed, and several conveying wheels are distributed longitudinally on each flipping rod. The several conveying wheels on the several flipping rods can roughly cover the bottom projection surface of the plate.

[0011] Preferably, each conveyor wheel is connected to a tilting rod via a lifting block. The tilting rod has a sealed cavity, and the lifting block is slidably connected to the inner wall of the sealed cavity. One end of the sealed cavity protrudes from the outer wall of the tilting rod, so that the lifting block drives the conveyor wheel to extend out of the tilting rod under the drive of the power source. The independent lifting of local conveyor wheels can be achieved through the sealed cavity of the tilting rod, the lifting block, and the control valve. The suspended part of the plate can be lifted as needed, replacing the traditional full-width fixed support. This dynamic support mode reduces unnecessary structural occupation, makes the cutting bed space more flexible, adapts to the cutting of irregularly shaped plates, and avoids idle space resources.

[0012] Preferably, the flipping rod has a cavity, and each sealed cavity is connected to the cavity through a connecting hole. Each connecting hole is equipped with a control valve, which can individually control the opening and closing of each sealed cavity and the cavity.

[0013] Preferably, the two states of the flipping rod have a height difference. When the conveyor wheel on the flipping rod is facing down, the flipping rod is at a low position, and when the conveyor wheel on the flipping rod is facing up, the flipping rod is at a high position.

[0014] Preferably, a gear is fixed to the end of the flipping rod, and a rack is fixed to the bottom of the inner wall of the cutting bed. The gear meshes with the rack, and a lifting support is installed at the bottom of the flipping rod. The lifting support moves up and down, causing the gear at the end of the flipping rod to mesh with the rack, thereby allowing the flipping rod to flip up and down and generate a height difference.

[0015] On the other hand, the present invention provides a laser cutting method for thermal cutting of wind turbine panels, comprising the following steps: S1. In the initial state, the flipping rod is fixed in the gap between the adjacent support plates with its anti-laser plate facing upwards, so that the plate is supported by the tip of the support plate and kept horizontal. S2. Control the moving component to drive the laser head to perform thermal cutting on the sheet metal on the cutting bed; S3. After cutting, drive the flipping rod to rotate 180° around its axis, so that it changes from the anti-laser plate facing upward to the conveyor wheel facing upward; S4. Use the conveyor wheels to lift the plate from the tip of the support plate, so that the plate is separated from the tip and is ready to move. S5. Control the suction cup to adjust its position through the avoidance component so that it can be adsorbed onto the surface of the board; S6. The moving component drives the suction cup and the adsorbed board to move along the feeding or discharging direction of the cutting bed, so as to realize the automatic removal or feeding of the board.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. This invention supports the plate with the pointed tip of the support plate, which ensures stable horizontality during cutting and prevents damage with minimal contact area; at the same time, the conveying wheel of the flipping rod can lift the plate after flipping, replacing the traditional lifting tool to complete the feeding / unloading, significantly reducing the space occupation, solving the problem of existing technology relying on large lifting tools and wasting space, and improving the utilization rate of workshop space.

[0017] 2. This invention adopts a double-sided design for the flipping rod. One side is made of laser-resistant material to resist cutting heat radiation and protect the internal structure; the other side is equipped with a conveyor wheel to transfer the plate. This integrates the support and conveying functions into the same component, avoiding the risk of traditional conveyor rollers being penetrated and damaged by lasers. Furthermore, the high and low position switching optimizes the spatial layout and improves the compactness of the equipment.

[0018] 3. This invention integrates suction cups and avoidance components, and uses negative pressure to adsorb the top surface of the sheet material, eliminating the dependence on lifting tools. It is especially suitable for large-size wind power sheet materials, realizing automated feeding / unloading, reducing manual labor intensity, and at the same time, the avoidance components ensure that the adsorption process does not interfere with the cutting area.

[0019] 4. This invention achieves independent lifting of local conveying wheels through the sealing cavity of the flipping rod, the lifting block and the control valve. It can lift the suspended part of the plate as needed, replacing the traditional full-width fixed support. This dynamic support mode reduces unnecessary structural occupation, makes the cutting bed space more flexible, adapts to the cutting of irregular plate shapes, and avoids idle space resources.

[0020] 5. This invention covers the processing area with a moving component, and combines the high and low position switching of the flipping rod with the dense distribution of the support plates to vertically superimpose the support, cutting and conveying functions, which greatly reduces the floor space occupied by the equipment and solves the problem of space waste caused by functional zoning in the prior art.

[0021] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an overall perspective view of the sheet metal during the processing of the present invention; Figure 2This is a perspective view of the entire invention; Figure 3 This is a perspective view of the present invention with the support sheet removed; Figure 4 This is a diagram showing the flipping changes of the flipping rod of the present invention; Figure 5 This is a perspective view of the moving component of the present invention; Figure 6 This is a perspective view of the longitudinally moving block of the present invention; Figure 7 This is a perspective view of the obstacle avoidance component of the present invention; Figure 8 This is a schematic diagram of the lifting block of the present invention; Figure 9 This is a cross-sectional view of the flipping rod of the present invention; Figure 10 This is a schematic diagram of the control valve of the present invention; Figure 11 This is a perspective view of the flipping rod of the present invention; Figure 12 This is a bottom perspective view of the flipping rod of the present invention.

[0023] The accompanying figure is labeled as follows: 1. Cutting bed; 2. Laser head; 3. Moving component; 4. Sheet metal; 5. Support plate; 6. Tip; 7. Tilting rod; 8. Conveyor wheel; 9. Lateral moving beam; 10. Longitudinal moving block; 11. Extrusion component; 12. Suction cup; 13. Avoidance component; 14. Negative pressure pipe; 15. Lateral telescopic component; 16. Vertical telescopic component; 17. Lifting block; 18. Sealing cavity; 19. Limiting block; 20. Roller; 21. Cavity; 22. Connecting hole; 23. Control valve; 24. Electromagnetic spring; 25. Air inlet; 26. Air inlet pipe; 27. Hose; 28. Movable sleeve; 29. ​​Fixed column; 30. Through hole; 31. Lifting component; 32. Retraction spring; 33. Gear; 34. Rack; 35. Lifting support; 36. Limiting sleeve; 37. Telescopic column. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0025] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, this embodiment provides a laser cutting device for thermal cutting of wind turbine sheet metal, including a cutting bed 1, a laser head 2, and a moving component 3. The moving component 3 drives the laser head 2 to cut the sheet metal 4 placed on the cutting bed 1. The cutting bed 1 has several densely distributed support plates 5, and the top of the multiple support plates 5 has several tips 6. The tips 6 keep the sheet metal 4 horizontal. There is a gap between two adjacent support plates 5, and a flipping rod 7 is provided in the gap. The flipping rod 7 can be flipped 180° up and down. One side of the flipping rod 7 is equipped with an anti-laser plate (not shown in the figure, which can be understood as the entire flipping rod 7 being made of anti-laser material, or an anti-laser material being installed on one side of the flipping rod 7), and the other side is equipped with a conveyor wheel 8.

[0026] like Figure 5 As shown, the moving component 3 includes a transverse moving beam 9 and a longitudinal moving block 10. The transverse moving beam 9 moves along the feeding or discharging direction of the cutting bed 1, and the longitudinal moving block 10 moves along the longitudinal direction of the transverse moving beam 9, so that the moving range of the longitudinal moving block 10 can cover the top projection surface of the plate 4.

[0027] like Figure 6 As shown, the moving component 3 is also equipped with an extrusion member 11, which is a pneumatic or hydraulic telescopic rod. When the movable end of the extrusion member 11 presses downward, it can separate the cut part of the plate 4 from the body of the plate 4. The laser head 2 and the extrusion member 11 are specifically fixedly connected to the bottom of the longitudinal moving block 10.

[0028] like Figure 7 As shown, a suction cup 12 is installed on the moving component 3. The suction cup 12 avoids the processing area of ​​the sheet 4 through the avoidance component 13. Specifically, when the flipping rod 7 flips to the state where the conveyor wheel 8 faces upward, the conveyor wheel 8 lifts the sheet 4, and then the suction cup 12 is attracted to the sheet 4 by negative pressure. A negative pressure pipe 14 is installed at one end of the suction cup 12. A negative pressure is formed inside the suction cup 12 by an external negative pressure pump (not shown in the figure). The sheet 4 moves with the suction cup 12 and the moving component 3, moving the sheet 4 in the feeding or discharging direction of the cutting bed 1, thereby achieving the effect of convenient feeding and discharging.

[0029] The avoidance component 13 includes a horizontal telescopic component 15 and a vertical telescopic component 16. The suction cup 12 is fixedly connected to the telescopic end of the vertical telescopic component 16, and the vertical telescopic component 16 is fixedly connected to the telescopic end of the horizontal telescopic component 15. Through the synergistic effect of the vertical telescopic component 16 and the horizontal telescopic component 15, the suction cup 12 can be driven to adhere to the top surface of the plate 4.

[0030] It should be noted that the anti-laser material in the above solution can be a copper-tungsten composite metal, where copper has high reflectivity and tungsten has a high melting point, thus effectively resisting laser heat. Alternatively, it can be a material such as silicon carbide, alumina, or high-temperature resistant ceramics.

[0031] like Figure 3 As shown, several flipping rods 7 are arranged horizontally on the cutting bed 1, and several conveying wheels 8 are distributed longitudinally on each flipping rod 7. The several conveying wheels 8 on the several flipping rods 7 can roughly cover the bottom projection surface of the plate 4.

[0032] like Figure 8 As shown, each conveyor wheel 8 is connected to the tilting rod 7 via a lifting block 17. A sealing cavity 18 is provided on the tilting rod 7. The lifting block 17 is slidably connected to the inner wall of the sealing cavity 18. One end of the sealing cavity 18 protrudes from the outer wall of the tilting rod 7, so that the lifting block 17 drives the conveyor wheel 8 to extend out of the tilting rod 7 under the drive of the power source.

[0033] like Figure 9 , Figure 10 As shown, limit blocks 19 are installed at both ends of the flipping rod 7. The limit blocks 19 and the conveying wheel 8 are on the same side. The side of the limit block 19 closest to the plate 4 is abutted by the roller 20.

[0034] The flipping rod 7 has a cavity 21. Each sealing cavity 18 is connected to the cavity 21 through a connecting hole 22. Each connecting hole 22 is equipped with a control valve 23. The control valve 23 can control the opening and closing of each sealing cavity 18 and the cavity 21 individually.

[0035] The control valve 23 is elastically connected to the connecting hole 22 via the electromagnetic spring 24. The lower half of the control valve 23 has an air inlet 25. When the electromagnetic spring 24 is energized and reset, the top of the air inlet 25 is blocked by the inner wall of the connecting hole 22. When the electromagnetic spring 24 is de-energized, the control valve 23 is opened by the electromagnetic spring 24, allowing the gas in the cavity 21 to enter the sealed cavity 18, thereby driving the lifting block 17 to move, thereby pushing out the conveying wheel 8, and lifting the plate 4 through the conveying wheel 8.

[0036] like Figure 11 As shown, an air inlet pipe 26 is connected to the end of the flipping rod 7. The air inlet pipe 26 is located in the middle of the flipping rod 7. A flexible hose 27 is rotatably inserted into one end of the air inlet pipe 26. The flexible hose 27 is connected to an external air pump, thereby filling the cavity 21 with high-pressure gas.

[0037] like Figure 9 As shown, movable sleeves 28 are provided at both ends of the flipping rod 7. The movable sleeves 28 are fitted onto the fixed post 29. The fixed post 29 is fixedly connected to the flipping rod 7. A through hole 30 is provided in the middle of the fixed post 29. The through hole 30 communicates with the cavity 21. When the cavity 21 is filled with air, it can enter the movable sleeve 28 through the through hole 30, causing the movable sleeve 28 to move. The limiting block 19 is fixedly connected to the movable sleeve 28 through the lifting member 31. The movable sleeve 28 is fixed to the flipping rod 7 through the contraction spring 32.

[0038] like Figure 4 As shown, the tilting rod 7 has a height difference between its forward and reverse states. When the conveyor wheel 8 on the tilting rod 7 is facing downwards, the tilting rod 7 is at a lower position; when the conveyor wheel 8 on the tilting rod 7 is facing upwards, the tilting rod 7 is at a higher position. The specific scheme is as follows: A gear 33 is fixedly connected to the end of the flipping rod 7, and a rack 34 is fixedly connected to the bottom of the inner wall of the cutting bed 1. The gear 33 meshes with the rack 34. A lifting support 35 is installed at the bottom of the flipping rod 7. The lifting support 35 moves up and down, causing the gear 33 at the end of the flipping rod 7 to mesh with the rack 34, so that the flipping rod 7 can flip up and down and generate a height difference. The lifting support 35 is raised and lowered through the telescopic column 37 at its bottom. The raising and lowering of the telescopic column 37 is achieved by air pressure or hydraulic pressure.

[0039] like Figure 12 As shown, in order to ensure that the flipping rod 7 can move stably when flipping and lifting, a limiting sleeve 36 is provided at both ends of the flipping rod 7, and the limiting sleeve 36 is fixedly connected to the cutting bed 1.

[0040] In the above scheme, after the plate 4 is cut, the bottom of the plate 4 can be supported by the conveyor wheels 8 at different positions, while the other conveyor wheels 8 remain in a state of not contacting the plate 4, thereby achieving precise support for the plate 4. Example 2: This example differs from Example 1 in that it provides a laser cutting method for thermal cutting of wind turbine panels, comprising the following steps: S1. Initial support and positioning: The sheet material 4 to be processed is placed on the cutting bed 1 and supported by densely distributed support plates 5. The tip 6 at the top of the plate disperses the weight of the sheet material with a very small contact area, which not only ensures the horizontal stability of the sheet material (avoiding deformation due to its own weight from affecting the cutting accuracy) but also prevents large-area indentations (especially meeting the high surface quality requirements of wind power sheet material). This design replaces the wide support plate in the existing technology, reduces unnecessary structural occupation, and frees up space for subsequent conveying.

[0041] S2. Cutting preparation: When the moving component 3 is activated, its transverse moving beam 9 moves horizontally along the feeding / discharging direction of the cutting bed, and its longitudinal moving block 10 moves along the longitudinal direction of the transverse moving beam. The two work together to make the moving range of the laser head 2 (fixed to the bottom of the longitudinal moving block) cover the top projection surface of the plate 4, providing a basis for cutting path planning.

[0042] S3, Cutting process: Laser head 2 emits a laser beam and cuts the plate 4 along a preset trajectory. When the cut reaches the connection between the component and the body, the extrusion component 11 (pneumatic / hydraulic telescopic rod, fixed to the bottom of the longitudinal moving block) applies downward pressure, using mechanical force to cause the micro-connection to break, so that the cutting component is completely separated from the plate body (avoiding thermal stress adhesion that could cause the component to remain stuck). At this time, the plate is still supported by the tip 6, and the gap between the support plates 5 of the cutting bed 1 is a safe space reserved for laser penetration (avoiding damage to the bed structure).

[0043] S4. Conveying preparation: After cutting, when the sheet material 4 needs to be fed / unloaded, the flipping rod 7 performs the core action: Flipping and High / Low Position Switching: The gears 33 fixed at both ends of the flipping rod mesh with the rack 34 at the bottom of the inner wall of the cutting bed 1. The bottom lifting support 35 is raised and lowered through the telescopic column 37 (pneumatic / hydraulic drive), which drives the gears to move along the rack, causing the flipping rod 7 to rotate 180° around the axis. At this time, the originally downward-facing conveyor wheel 8 flips to face upward, and due to the lifting design of the gear and rack meshing, the flipping rod 7 switches from a low position (close to the bed surface when the conveyor wheel is facing downward) to a high position (raised to a certain height when the conveyor wheel is facing upward), forming a height difference with the tip 6, creating conditions for lifting the plate.

[0044] Partial extension of the conveyor wheel: High-pressure gas is injected into the cavity 21 through the air inlet pipe 26 (one end of the air inlet pipe is connected to an external air pump via the hose 27), and the gas enters the sealed cavity 18 through the connecting hole 22. At this time, the control valve 23 is energized, and the electromagnetic spring 24 resets to block the air inlet hole 25, so that the gas only enters the target sealed cavity; when the power is off, the electromagnetic spring pushes open the control valve, and the gas pushes the lifting block 17 (which is slidably connected to the inner wall of the sealed cavity) to move outward, so that the conveyor wheel 8 extends out of the flipping rod 7, lifting the plate 4 from the tip 6 (only contacting the part to be conveyed, while the rest of the conveyor wheel remains retracted to reduce friction).

[0045] S5, Intelligent Transfer: After board 4 is lifted, suction cup 12 is activated to move it: Avoidance and positioning: The horizontal telescopic component 15 and the vertical telescopic component 16 of the avoidance component 13 extend and retract in tandem, causing the suction cup 12 (fixed to the telescopic end of the vertical telescopic component 16) to avoid the cutting processing area and move to the non-cutting area on the top surface of the plate 4.

[0046] Negative pressure adsorption and transfer: The suction cup 12 is connected to an external negative pressure pump through the negative pressure pipe 14, forming a negative pressure adsorption plate 4 inside. Then the moving component 3 drives the suction cup to move horizontally / vertically, smoothly transferring the plate 4 to the feeding end (loading) or discharging end (unloading) of the cutting bed 1. No lifting equipment is required throughout the process, solving the problems of existing technologies that rely on large lifting equipment and occupy a large space.

[0047] S6. Reset and Loop: After the sheet material 4 is transferred to its position, the suction cup 12 releases the negative pressure, and the flipping rod 7 resets: the control valve 23 switches on and off, the sealing chamber 18 vents, the lifting block 17 retracts, and the conveying wheel 8 retracts; the gear 33 moves in the opposite direction along the rack 34, the flipping rod 7 rotates 180° back to its low position, the conveying wheel 8 faces downward, and the sheet material 4 falls back to the tip 6 for support, awaiting the next cut. Throughout the process, the tip 6 of the support plate 5, the laser-resistant surface of the flipping rod 7 (not shown, the other side), and the functional areas (cutting, extrusion, and adsorption) of the moving component 3 are vertically stacked on the cutting bed 1, without additional floor space, achieving efficient space utilization.

[0048] In summary, this invention supports the plate 4 with the pointed end 6 at the top of the support plate 5, ensuring stable horizontality during cutting while minimizing contact area to prevent damage. Simultaneously, the conveyor wheel 8 of the flipping rod 7 can lift the plate after flipping, replacing traditional lifting tools for feeding / unloading, significantly reducing space occupation and solving the problems of existing technologies relying on large lifting tools and wasting space, thus improving workshop space utilization. By adopting a double-sided design for the flipping rod 7, one side is made of laser-resistant material to resist cutting heat radiation and protect the internal structure; the other side is equipped with a conveyor wheel 8 to move the plate, thus integrating support and conveying functions into the same component. This avoids the risk of traditional conveyor rollers being damaged by laser penetration, and the high / low position switching optimizes the spatial layout, improving equipment compactness. Furthermore, by integrating the suction cup 12 and the avoidance component 13, the plate is adsorbed through negative pressure. 4. The top surface eliminates the reliance on lifting equipment, making it particularly suitable for large-sized wind turbine panels. It enables automated feeding / unloading, reducing manual labor intensity, while avoiding component 13 to ensure that the adsorption process does not interfere with the cutting area. The independent lifting of the local conveying wheel 8 is achieved through the sealing cavity 18 of the flipping rod 7, the lifting block 17, and the control valve 23. It can lift the suspended parts of the panel as needed, replacing the traditional full-width fixed support. This dynamic support mode reduces unnecessary structural occupation, making the cutting bed 1 more flexible and adaptable to the cutting of irregularly shaped panels, avoiding idle space resources. By covering the processing area with the moving component 3, combined with the high and low position switching of the flipping rod 7 and the dense distribution of the support plates 5, the support, cutting, and conveying functions are vertically superimposed, greatly reducing the equipment's floor space and solving the problem of wasted space caused by functional zoning in existing technologies.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0051] Definitions: Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0052] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0053] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0054] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0055] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser cutting device for thermal cutting of wind turbine sheet metal, comprising a cutting bed, a laser head, and a moving assembly, wherein the moving assembly drives the laser head to cut the sheet metal placed on the cutting bed, the cutting bed having a plurality of densely distributed support plates, the tops of the support plates having a plurality of tips, the tips keeping the sheet metal horizontal, characterized in that: There is a gap between two adjacent support plates, and a flipping rod is installed in the gap. The flipping rod can rotate 180° up and down. One side of the flipping rod is equipped with an anti-laser plate, and the other side is equipped with a conveyor wheel. A suction cup is installed on the moving component. The suction cup avoids the processing area of ​​the plate through the avoidance component. When the flipping rod is flipped so that the conveyor wheel is facing upward, the conveyor wheel lifts the plate, and then the suction cup is attached to the plate. The plate moves with the suction cup and the moving component, moving the plate in the feeding or discharging direction of the cutting bed.

2. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 1, characterized in that: Limit blocks are installed at both ends of the flipping rod. The limit blocks and the conveyor wheel are on the same side. The side of the limit block closest to the plate is abutted by a roller.

3. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 1, characterized in that: The moving component is also equipped with an extruder, whose movable end presses downward to separate the cut portion of the sheet from the sheet body.

4. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 3, characterized in that: The moving assembly includes a transverse moving beam and a longitudinal moving block. The transverse moving beam moves along the feeding or discharging direction of the cutting bed, and the longitudinal moving block moves along the longitudinal direction of the transverse moving beam, so that the moving range of the longitudinal moving block can cover the top projection surface of the sheet metal. The laser head and the extruder are fixed to the longitudinal moving block.

5. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 1, characterized in that: Several tilting rods are arranged horizontally on the cutting bed, and several conveyor wheels are distributed longitudinally on each tilting rod.

6. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 5, characterized in that: Each conveyor wheel is connected to a tilting rod via a lifting block. A sealing cavity is provided on the tilting rod. The lifting block is slidably connected to the inner wall of the sealing cavity. One end of the sealing cavity protrudes from the outer wall of the tilting rod, so that the lifting block drives the conveyor wheel to extend out of the tilting rod under the drive of the power source.

7. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 6, characterized in that: The flipping rod has a cavity, and each sealed cavity is connected to the cavity through a connecting hole. Each connecting hole is equipped with a control valve, which can individually control the opening and closing of each sealed cavity and the cavity.

8. The laser cutting equipment for thermal cutting of wind turbine panels as described in claim 1, characterized in that: The tilting rod has a height difference between its forward and reverse states. When the conveyor wheel on the tilting rod is facing down, the tilting rod is at a low position, and when the conveyor wheel on the tilting rod is facing up, the tilting rod is at a high position.

9. The laser cutting equipment for thermal cutting of wind turbine sheet metal as described in claim 8, characterized in that: A gear is fixed to the end of the flipping rod, and a rack is fixed to the bottom of the inner wall of the cutting bed. The gear and the rack mesh. A lifting support is installed at the bottom of the flipping rod. The lifting support moves up and down, causing the gear and the rack at the end of the flipping rod to mesh, thereby causing the flipping rod to flip up and down and create a height difference.

10. A laser cutting method for thermal cutting of wind turbine sheet metal, employing the laser cutting equipment for thermal cutting of wind turbine sheet metal as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. In the initial state, the flipping rod is fixed in the gap between the adjacent support plates with its anti-laser plate facing upwards, so that the plate is supported by the tip of the support plate and kept horizontal. S2. Control the moving component to drive the laser head to perform thermal cutting on the sheet metal on the cutting bed; S3. After cutting, drive the flipping rod to rotate 180° around its axis, so that it changes from the anti-laser plate facing upward to the conveyor wheel facing upward; S4. Use the conveyor wheels to lift the plate from the tip of the support plate, so that the plate is separated from the tip and is ready to move. S5. Control the suction cup to adjust its position through the avoidance component so that it can be adsorbed onto the surface of the board; S6. The moving component drives the suction cup and the adsorbed board to move along the feeding or discharging direction of the cutting bed, so as to realize the automatic removal or feeding of the board.

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