Plate laser cutting device and cutting system

Abstract

The invention discloses a plate laser cutting device and system, and belongs to the field of laser cutting devices.The plate laser cutting device comprises a machine body, the inner surface of the machine body is rotationally connected with a supporting rod, the outer surface of the supporting rod is fixedly connected with a carrier roller used for containing a thin plate, and a clamping assembly is arranged on the outer side of the machine body; the clamping assembly comprises a fixing plate fixedly connected with the outer surface of the upper end of the machine body, a baffle is fixedly connected with the outer surface of the fixing plate, a sliding groove is formed in the outer surface of the baffle, and an ejector rod is slidably connected with the inner side of the sliding groove. By arranging the clamping assembly, the edges of the thin plates are extruded through cooperation of the extrusion plate and the positioning wheel, the friction force between the thin plates can be effectively improved by increasing the extrusion force between the thin plates, then the thin plates are kept stable in the cutting machining process, the probability that the thin plates deviate in the laser cutting process is easily reduced, and the laser cutting efficiency is improved. And therefore, the machining error can be reduced, and the laser cutting machining precision can be improved.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting devices, and more specifically, to a plate laser cutting device and a cutting system. Background Art

[0002] Laser cutting device is a high-tech equipment that uses high-power density laser beam to heat, melt or even vaporize materials to achieve precision cutting. Laser cutting device has the advantages of high precision, high efficiency and high degree of automation. It is widely used in the field of plate cutting and processing, and has become one of the indispensable tools in modern manufacturing industry. For example, the Chinese patent with the announcement number CN118321749B discloses a plate laser cutting device and a cutting method, which drives the first rotating shaft and the second rotating shaft to rotate synchronously through a rotary drive mechanism, effectively cleans the slag attached to the support part, avoids the slag attached to the support part and affects the flatness of the plate, and improves the actual cutting accuracy; When the existing laser cutting device is working, the plate is usually placed on the upper side of the support part. By cleaning the plate support part, the influence of slag on the stability of the plate during the plate placement process can be reduced. When the existing laser cutting device is cutting thin plates, due to the small thickness of the thin plates, they are easily deformed and warped due to heat during cutting. Therefore, the thin plates are usually stacked to reduce the probability of deformation and warping during the thin plate cutting process. However, during the stacking and cutting of thin plates, the vibration of the workbench will cause relative sliding between the groups of thin plates, thereby causing the position of the thin plates to shift, thereby affecting the cutting accuracy. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a plate laser cutting device and a cutting system. By setting a clamping assembly, the edge of the thin plate is squeezed by the extrusion plate in cooperation with the positioning wheel. By increasing the extrusion force between each group of thin plates, the friction between the thin plates can be effectively increased, thereby keeping the thin plates stable during the cutting process, helping to reduce the probability of the thin plates shifting during the laser cutting process, thereby helping to reduce processing errors, and thus improving the laser cutting processing accuracy.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] A plate laser cutting device comprises a body, the inner surface of the body is rotatably connected to a support rod, the outer surface of the support rod is fixedly connected to a roller for placing a thin plate, and a clamping assembly is arranged on the outer side of the body; The clamping assembly includes a fixing plate fixedly connected to the outer surface of the upper end of the fuselage, a baffle plate fixedly connected to the outer surface of the fixing plate, a sliding groove is provided on the outer surface of the baffle plate, a push rod is slidably connected to the inner side of the sliding groove, a positioning wheel is rotatably connected to the outer surface of the push rod, a notch is provided on the outer surface of the baffle plate, an extrusion plate is slidably connected to the inner surface of the notch, an adjusting rod is rotatably connected to the outer surface of the upper end of the fixing plate, and the adjusting rod is threadedly connected to the push rod and the extrusion plate, respectively.

[0006] Furthermore, the lower side of the outer surface of the positioning wheel is in rotational contact with the outer surface of the upper end of the thin plate, the outer surface of the adjusting rod is symmetrically provided with spiral grooves, the number of the positioning wheels, the top rod, the fixed plate and the baffle are four groups and are symmetrically distributed, the number of the support rods and rollers are several groups and are distributed in a linear array.

[0007] Furthermore, a positioning assembly is provided on the outer side of the baffle, and the positioning assembly includes a pin shaft fixedly connected to the inner side of the slide groove, and a swing rod is connected to the outer surface of the pin shaft for damping rotation, and the upper end of the swing rod is in contact with the lower side of the outer surface of the push rod.

[0008] Furthermore, a displacement groove is provided on the outer surface of the roller near the baffle, and the number of the displacement grooves is two groups and is symmetrically distributed. A positioning plate is slidably connected to the inner side of the displacement groove, and the positioning plate is in a circular ring shape. The lower end of the swing rod is in sliding contact with the outer surface of the positioning plate, and the outer surface of the positioning plate is in contact with the side edge of the thin plate away from the baffle.

[0009] Furthermore, a cutting assembly is provided on the upper side of the fuselage, and the cutting assembly includes a movable frame 1 slidably connected to the outer surface of the upper end of the fuselage, the movable frame 1 is a U-shaped structure, the outer surface of the movable frame 1 is slidably connected to a movable frame 2, the outer surface of the left end of the movable frame 2 is fixedly connected to a mounting seat, and the middle part of the outer surface of the mounting seat is fixedly connected to a laser emitter.

[0010] Furthermore, a support plate is fixedly connected to the outer surface of the right end of the movable frame one, and the support plate is in an L-shaped structure. A mounting frame is fixedly connected to the outer surface of the right end of the movable frame two, and the front end of the mounting frame is fixedly connected to the outer surface of the movable frame one. The mounting frame is made of flexible material, and the outer surface of the upper end of the support plate is in contact with the mounting frame.

[0011] Furthermore, a pressing assembly is provided on the outer side of the movable frame, and the pressing assembly includes a guide groove embedded in the outer surface of the movable frame, a movable rod is movably connected to the inner side of the guide groove, and an extrusion wheel is rotatably connected to the outer surface of the movable rod. The number of the extrusion wheels is two groups and they are symmetrically distributed, the lower side of the outer surface of the extrusion wheel is in rolling contact with the outer surface of the upper end of the thin plate, the upper end of the inner surface of the guide groove is fixedly connected to a spring, and the lower end of the spring is in rotational contact with the outer surface of the movable rod.

[0012] Furthermore, an installation groove is provided on the outer surface of the extrusion wheel, and a magnetic plate is fixedly connected to the inner surface of the installation groove. The number of the installation grooves and magnetic plates is several groups and distributed in a ring array. The magnetic plate is arc-shaped, and a cavity is embedded on the inner side of the extrusion wheel. A cooling plate is fixedly connected to the inner surface of the cavity. The cavity is filled with coolant, and the number of the cooling plates is several groups and distributed in a ring array.

[0013] Furthermore, a support leg is fixedly connected to the outer surface of the lower end of the fuselage, a material guide plate is fixedly connected to the outer surface of the lower end of the fuselage, the outer surface of the material guide plate is inclined, a material receiving hopper is arranged on the lower side of the material guide plate, and the upper end of the material receiving hopper is open, the positioning wheel, extrusion wheel and roller are all made of wear-resistant material, the extrusion plate is U-shaped, and the number of the notches is two groups and they are symmetrically distributed.

[0014] A plate laser cutting system comprises the following steps: S1: First, stack the thin plate on the upper surface of the roller, and use the squeezing plate and the positioning wheel to squeeze the edge of the thin plate to keep the thin plate stable during the cutting process; S2: During the clamping process, the positioning assembly is attached to the side wall of the thin plate through the positioning plate, so that the placement of the thin plate remains accurate and the probability of mutual offset between the thin plates of each group is reduced; S3: After the thin plate is placed stably, the movable frame 1 and the movable frame 2 drive the laser transmitter to perform laser cutting on the thin plate; S4: The pressing component presses the thin plate at a position near the cutting point of the thin plate through the pressing wheel, thereby reducing the probability of the thin plate being deformed by heat during the cutting process; S5: The extrusion wheel rolls in contact with the upper surface of the thin plate, which can have a certain cooling effect on the thin plate and increase the cooling speed of the thin plate.

[0015] Compared with the prior art, the advantages of the present invention are: (1) This solution provides a clamping assembly, and uses a squeezing plate and a positioning wheel to squeeze the edge of the thin plate. By increasing the squeezing force between each group of thin plates, the friction between the thin plates can be effectively increased, thereby keeping the thin plates stable during the cutting process, helping to reduce the probability of the thin plates shifting during the laser cutting process, thereby helping to reduce the processing error, and thus improving the laser cutting processing accuracy; (2) In this scheme, by setting a positioning component, the positioning plate will fit with the side wall of the thin plate during the movement. The four groups of symmetrically distributed positioning plates can abut against the side of the thin plate, which can not only keep the placement of the thin plate accurate, but also position the side of the thin plate, reducing the probability of mutual offset between the groups of thin plates, thereby further improving the quality of thin plate cutting; (3) In this scheme, by setting a pressing component, the extrusion wheel will contact the upper surface of the thin plate under the action of gravity, and can squeeze the thin plate near the cutting point of the thin plate, thereby reducing the probability of the thin plate being deformed by heat during the cutting process, and further improving the laser cutting processing accuracy. It not only helps to keep the upper surface of the thin plate stable and reduce the gap between each group of thin plates, but also can further improve the stability during the thin plate cutting process.

[0016] (4) This scheme provides an extrusion wheel, a magnetic plate and other components, which can magnetically attract the iron filings and cutting slag on the surface of the thin plate to the inside of the installation groove during the rolling process of the extrusion wheel, thereby effectively reducing the residual iron filings and cutting slag on the surface of the thin plate, and further reducing the impact of the iron filings and cutting slag on the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 It is a top view of the overall structure of the present invention; Figure 3 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 4 For the present invention Figure 2 Middle AA section view; Figure 5 For the present invention Figure 2 Middle BB section view; Figure 6 For the present invention Figure 2 Middle CC section view; Figure 7 For the present invention Figure 4 The enlarged schematic diagram at D in the middle; Figure 8 For the present invention Figure 5 The enlarged schematic diagram at E in the middle; Fig. 9 For the present invention Figure 6 Enlarged schematic diagram at F in the middle.

[0018] Description of the numbers in the figure: 11. Body; 12. Material guide plate; 13. Material receiving hopper; 14. Movable frame 1; 15. Movable frame 2; 16. Support plate; 17. Mounting frame; 18. Guide groove; 19. Spring; 20. Movable rod; 21. Extrusion wheel; 22. Fixed plate; 23. Adjustment rod; 24. Baffle; 25. Positioning wheel; 26. Roller; 27. Slide groove; 28. Push rod; 29. ​​Support rod; 30. Swing rod; 31. Pin; 32. Positioning plate; 33. Displacement groove; 34. Extrusion plate; 35. Notch; 36. Mounting groove; 37. Magnetic plate; 38. Refrigeration plate; 39. Cavity; 40. Laser transmitter; 41. Mounting seat; 42. Leg. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 9 A plate laser cutting device comprises a body 11, a support rod 29 is rotatably connected to the inner surface of the body 11, a roller 26 for placing a thin plate is fixedly connected to the outer surface of the support rod 29, and a clamping assembly is arranged on the outer side of the body 11; The clamping assembly includes a fixing plate 22 fixedly connected to the outer surface of the upper end of the fuselage 11, a baffle 24 fixedly connected to the outer surface of the fixing plate 22, a slide groove 27 is provided on the outer surface of the baffle 24, a push rod 28 is slidably connected to the inner side of the slide groove 27, a positioning wheel 25 is rotatably connected to the outer surface of the push rod 28, a notch 35 is provided on the outer surface of the baffle 24, an extrusion plate 34 is slidably connected to the inner side of the notch 35, an adjusting rod 23 is rotatably connected to the outer surface of the upper end of the fixing plate 22, and the adjusting rod 23 is threadedly connected to the push rod 28 and the extrusion plate 34, respectively.

[0021] The lower side of the outer surface of the positioning wheel 25 is in rotational contact with the outer surface of the upper end of the thin plate, and the outer surface of the adjusting rod 23 is symmetrically provided with spiral grooves. The number of the positioning wheels 25, the top rod 28, the fixing plate 22 and the baffle plate 24 are all four groups and are symmetrically distributed. The number of the support rods 29 and the rollers 26 are several groups and are distributed in a linear array.

[0022] By adopting the above technical solution, in the process of laser cutting of thin plates, in order to improve processing efficiency and reduce the deformation of thin plates, multiple thin plates are usually stacked. During operation, an appropriate number of thin plates are stacked on the surface of the roller 26 according to the thickness of the thin plates. The surface of the roller 26 can be evenly provided with top blocks to reduce the contact area with the thin plates. The fuselage 11 is rotatably connected to the support rod 29 through the bearing, and the roller 26 is supported by the support rod 29, so that the thin plates can be stably stacked on the upper side of the roller 26. In order to make each thin plate The plate remains stable during the laser cutting process, and the probability of accidental movement of the thin plate during the cutting process is reduced. A clamping assembly is set. After the thin plate is stacked on the surface of the roller 26, the operator rotates the adjusting rod 23, and the adjusting rod 23 is threadedly connected with the top rod 28 and the extrusion plate 34 through the spiral grooves symmetrically opened on its surface. As the adjusting rod 23 rotates, the top rod 28 and the extrusion plate 34 will move towards each other. The fuselage 11 fixes and supports the baffle 24 through the fixing plate 22, and the sliding groove 27 on the surface of the baffle 24 can support the sliding of the top rod 28. The support rod 28 slides linearly downward along the slide groove 27, and the push rod 28 drives the positioning wheel 25 to move downward synchronously during the movement, and the thin plate is pressed downward by the positioning wheel 25. At the same time, the extrusion plate 34 moves upward under the drive of the adjusting rod 23, and the notch 35 can guide the extrusion plate 34, so that the extrusion plate 34 moves more smoothly. The extrusion plate 34 cooperates with the positioning wheel 25 to squeeze the edge of the thin plate, and the friction force between the thin plates can be effectively increased by increasing the extrusion force between each group of thin plates, thereby making the thin plate stable during the cutting process, which helps to reduce the probability of the thin plate offset during the laser cutting process, thereby helping to reduce the processing error and improve the laser cutting processing accuracy. The four groups of symmetrically distributed positioning wheels 25 and the extrusion plate 34 can clamp and fix the edge of the thin plate, thereby further improving the clamping stability of the thin plate. By setting the clamping assembly, a good clamping effect can be achieved for thin plates of different thicknesses, thereby effectively improving the application range of the clamping assembly.

[0023] like Figure 4 , Figure 6 , Figure 7 and Fig. 9 As shown, a positioning assembly is provided on the outer side of the baffle 24, and the positioning assembly includes a pin shaft 31 fixedly connected to the inner side of the slide groove 27, and a swing rod 30 is connected to the outer surface of the pin shaft 31 for damping rotation, and the upper end of the swing rod 30 is in contact with the lower side of the outer surface of the push rod 28.

[0024] The outer surface of the roller 26 is provided with a displacement groove 33 near the baffle 24. The displacement grooves 33 are in two groups and are symmetrically distributed. A positioning plate 32 is slidably connected to the inner side of the displacement groove 33. The positioning plate 32 is in a circular ring shape. The lower end of the swing rod 30 is in sliding contact with the outer surface of the positioning plate 32. The outer surface of the positioning plate 32 is in contact with the side of the thin plate away from the baffle 24.

[0025] The positioning wheel 25 , the extrusion wheel 21 and the support roller 26 are all made of wear-resistant materials. The extrusion plate 34 is in a U-shaped structure. The number of the notches 35 is two groups and they are symmetrically distributed.

[0026] By adopting the above technical solution, when clamping and fixing the thin plates, it is necessary not only to clamp each group of thin plates, but also to locate the positions of the thin plates so that the placement of the thin plates remains accurate. For this purpose, a positioning component is provided. When the adjustment rod 23 drives the push rod 28 to move downward, the push rod 28 will contact the upper end of the swing rod 30 and push the swing rod 30 downward through the push rod 28, so that the swing rod 30 rotates inside the slide groove 27 with the pin shaft 31 as the fulcrum. The pin shaft 31 is connected to the swing rod 30 through the damping rotation, so that the swing rod 30 can remain stationary in the absence of external force. As the swing rod 30 gradually moves in the horizontal direction The swing rod 30 will flip over, and the lower end of the swing rod 30 will push the positioning plate 32, so that the swing rod 30 drives the positioning plate 32 to slide along the surface of the roller 26 toward the side of the thin plate. The displacement groove 33 opened on the surface of the roller 26 can guide the sliding of the positioning plate 32, so that the positioning plate 32 can slide smoothly on the surface of the roller 26. The positioning plate 32 will fit with the side wall of the thin plate during the movement. The four groups of symmetrically distributed positioning plates 32 can be against the side of the thin plate, which can not only keep the placement position of the thin plate accurate, but also position the side of the thin plate, reduce the probability of mutual offset between the groups of thin plates, thereby further improving the quality of thin plate cutting.

[0027] like Figure 1 and Figure 3 As shown, a cutting assembly is provided on the upper side of the fuselage 11, and the cutting assembly includes a movable frame 14 slidably connected to the outer surface of the upper end of the fuselage 11, the movable frame 14 is in a U-shaped structure, and a movable frame 2 15 is slidably connected to the outer surface of the movable frame 14, and a mounting seat 41 is fixedly connected to the outer surface of the left end of the movable frame 2 15, and a laser emitter 40 is fixedly connected to the middle of the outer surface of the mounting seat 41.

[0028] The outer surface of the right end of the movable frame 14 is fixedly connected with a support plate 16, and the support plate 16 is an L-shaped structure. The outer surface of the right end of the movable frame 2 15 is fixedly connected with a mounting frame 17. The front end of the mounting frame 17 is fixedly connected to the outer surface of the movable frame 14. The mounting frame 17 is made of flexible material, and the outer surface of the upper end of the support plate 16 is in contact with the mounting frame 17.

[0029] The lower outer surface of the fuselage 11 is fixedly connected with a support leg 42, and the lower outer surface of the fuselage 11 is fixedly connected with a material guide plate 12, the outer surface of the material guide plate 12 is inclined, and a material receiving hopper 13 is arranged at the lower side of the material guide plate 12, and the upper end of the material receiving hopper 13 is open.

[0030] By adopting the above technical scheme, when the thin plate is cut, the driving module is controlled according to the cutting device control system to drive the movable frame 14 to slide along the upper side of the fuselage 11 and drive the movable frame 2 15 to slide linearly along the outer surface of the movable frame 14. The movable frame 2 15 supports the laser emitter 40 through the mounting seat 41, and the thin plate is cut by emitting a high-energy laser beam through the laser emitter 40. The laser emitter 40 in this application adopts the disclosed existing technology, so the specific structure and principle of the laser emitter 40 are not described in detail here. The movable frame 14 supports the mounting frame 17 through the support plate 16, and the power line and the gas pipeline are installed inside the mounting frame 17. The power line and the gas pipeline are protected by the mounting frame 17. The legs 42 support the fuselage 11. The guide plate 12 on the lower side of the fuselage 11 can collect and guide the cut parts, so that the parts can be gathered into the receiving hopper 13, and the parts are stored by the receiving hopper 13.

[0031] like Figure 1 and Figure 8 As shown, a pressing assembly is provided on the outer side of the movable frame 14, and the pressing assembly includes a guide groove 18 embedded in the outer surface of the movable frame 14, and a movable rod 20 is movably connected to the inner side of the guide groove 18, and an extrusion wheel 21 is rotatably connected to the outer surface of the movable rod 20. The number of the extrusion wheels 21 is two groups and they are symmetrically distributed. The lower side of the outer surface of the extrusion wheel 21 is in rolling contact with the outer surface of the upper end of the thin plate, and a spring 19 is fixedly connected to the upper end of the inner surface of the guide groove 18, and the lower end of the spring 19 is in rotational contact with the outer surface of the movable rod 20.

[0032] By adopting the above technical scheme, the movable frame 14 guides the movable rod 20 for sliding through the guide groove 18, so that the movable rod 20 can slide linearly along the inside of the guide groove 18, and the movable rod 20 supports the extrusion wheel 21 for rotation. The extrusion wheel 21 will contact the upper surface of the thin plate under the action of gravity and the elastic force of the spring 19, so that the thin plate is pressed by the extrusion wheel 21. Since the position spacing between the extrusion wheel 21 and the laser emitter 40 remains constant, the extrusion wheel 21 can extrude the thin plate at a position near the cutting point of the thin plate, thereby reducing the probability of heat deformation of the thin plate during the cutting process, and further improving the laser cutting processing accuracy. The movable frame 14 will drive the movable rod 20 to move synchronously through the guide groove 18 during the movement, and drive the extrusion wheel 21 to roll on the surface of the thin plate through the movable rod 20, which not only helps to keep the upper surface of the thin plate stable and reduce the gap between each group of thin plates, but also can further improve the stability during the thin plate cutting process.

[0033] like Figure 6 and Figure 8 As shown, the outer surface of the extrusion wheel 21 is provided with a mounting groove 36, and the inner surface of the mounting groove 36 is fixedly connected to a magnetic plate 37, the number of the mounting grooves 36 and the magnetic plates 37 are several groups and are distributed in a ring array, the magnetic plate 37 is arc-shaped, and a cavity 39 is embedded on the inner side of the extrusion wheel 21, and the inner surface of the cavity 39 is fixedly connected to a cooling plate 38, and the cavity 39 is filled with coolant, and the number of the cooling plates 38 is several groups and are distributed in a ring array.

[0034] By adopting the above technical scheme, the extrusion wheel 21 stores the magnetic plate 37 through the mounting groove 36. The magnetic plate 37 has a certain magnetic force, which can magnetically attract the iron filings and cutting slag on the surface of the thin plate to the inside of the mounting groove 36 during the rolling of the extrusion wheel 21, thereby effectively reducing the residual iron filings and cutting slag on the surface of the thin plate, and further reducing the influence of the iron filings and cutting slag on the cutting accuracy. The cavity 39 opened on the inner wall of the extrusion wheel 21 can store an appropriate amount of coolant, and the cooling plates 38 distributed in a ring array can cool the coolant. The extrusion wheel 21 rolls in contact with the upper surface of the thin plate, which can have a certain cooling effect on the thin plate and increase the cooling speed of the thin plate, thereby helping to reduce the deformation amount during the thin plate cutting process, and further reducing the processing error.

[0035] A plate laser cutting system comprises the following steps: S1: First, stack the thin plate on the upper surface of the roller 26, and squeeze the edge of the thin plate through the squeezing plate 34 and the positioning wheel 25 to keep the thin plate stable during the cutting process; S2: During the clamping process, the positioning assembly is attached to the side wall of the thin plate through the positioning plate 32, so that the placement position of the thin plate is kept accurate and the probability of mutual offset between the thin plates of each group is reduced; S3: After the thin plate is placed stably, the movable frame 14 and the movable frame 2 15 drive the laser emitter 40 to perform laser cutting on the thin plate; S4: The pressing assembly presses the thin plate at a position near the cutting point of the thin plate through the pressing wheel 21, thereby reducing the probability of the thin plate being deformed by heat during the cutting process; S5: The extrusion wheel 21 is in rolling contact with the upper surface of the thin plate, which can have a certain cooling effect on the thin plate and increase the cooling speed of the thin plate.

[0036] The above is only a preferred specific implementation of the present invention; however, 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 solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plate laser cutting device, comprising a body (11), characterized in that: The inner surface of the body (11) is rotatably connected to a support rod (29), the outer surface of the support rod (29) is fixedly connected to a roller (26) for placing a thin plate, and a clamping assembly is provided on the outer side of the body (11); The clamping assembly comprises a fixing plate (22) fixedly connected to the outer surface of the upper end of the fuselage (11); a baffle (24) is fixedly connected to the outer surface of the fixing plate (22); a slide groove (27) is provided on the outer surface of the baffle (24); a push rod (28) is slidably connected to the inner side of the slide groove (27); a positioning wheel (25) is rotatably connected to the outer surface of the push rod (28); a notch (35) is provided on the outer surface of the baffle (24); an extrusion plate (34) is slidably connected to the inner surface of the notch (35); an adjusting rod (23) is rotatably connected to the outer surface of the upper end of the fixing plate (22); and the adjusting rod (23) is threadedly connected to the push rod (28) and the extrusion plate (34), respectively.

2. A plate laser cutting device according to claim 1, characterized in that: The lower side of the outer surface of the positioning wheel (25) is in rotational contact with the outer surface of the upper end of the thin plate, and the outer surface of the adjusting rod (23) is symmetrically provided with spiral grooves. The positioning wheel (25), the top rod (28), the fixing plate (22) and the baffle plate (24) are each provided in four groups and are symmetrically distributed. The support rods (29) and the rollers (26) are provided in a plurality of groups and are distributed in a linear array.

3. A plate laser cutting device according to claim 2, characterized in that: A positioning assembly is provided on the outside of the baffle (24), the positioning assembly comprising a pin shaft (31) fixedly connected to the inside of the slide groove (27), the outer surface of the pin shaft (31) being connected to a swing rod (30) in a damped rotation manner, the upper end of the swing rod (30) being in contact with the lower side of the outer surface of the push rod (28).

4. A plate laser cutting device according to claim 3, characterized in that: The outer surface of the roller (26) is provided with displacement grooves (33) near the baffle (24). The displacement grooves (33) are provided in two groups and are symmetrically distributed. A positioning plate (32) is slidably connected to the inner side of the displacement groove (33). The positioning plate (32) is in a circular ring shape. The lower end of the swing rod (30) is in sliding contact with the outer surface of the positioning plate (32). The outer surface of the positioning plate (32) is in contact with the side of the thin plate at a side away from the baffle (24).

5. A plate laser cutting device according to claim 4, characterized in that: A cutting assembly is arranged on the upper side of the fuselage (11), and the cutting assembly comprises a movable frame 1 (14) slidably connected to the outer surface of the upper end of the fuselage (11), the movable frame 1 (14) being in a U-shaped structure, the outer surface of the movable frame 1 (14) being slidably connected to a movable frame 2 (15), the outer surface of the left end of the movable frame 2 (15) being fixedly connected to a mounting seat (41), and the middle part of the outer surface of the mounting seat (41) being fixedly connected to a laser emitter (40).

6. A plate laser cutting device according to claim 5, characterized in that: The outer surface of the right end of the movable frame 1 (14) is fixedly connected to a support plate (16), and the support plate (16) is in an L-shaped structure. The outer surface of the right end of the movable frame 2 (15) is fixedly connected to a mounting frame (17), and the front end of the mounting frame (17) is fixedly connected to the outer surface of the movable frame 1 (14). The mounting frame (17) is made of a flexible material, and the outer surface of the upper end of the support plate (16) is in contact with the mounting frame (17).

7. A plate laser cutting device according to claim 6, characterized in that: A pressing assembly is arranged on the outside of the movable frame 1 (14), and the pressing assembly comprises a guide groove (18) embedded in the outer surface of the movable frame 1 (14); a movable rod (20) is movably connected to the inside of the guide groove (18); the outer surface of the movable rod (20) is rotatably connected to an extrusion wheel (21); the number of the extrusion wheels (21) is two groups and they are symmetrically distributed; the lower side of the outer surface of the extrusion wheel (21) is in rolling contact with the outer surface of the upper end of the thin plate; the upper end of the inner surface of the guide groove (18) is fixedly connected to a spring (19); the lower end of the spring (19) is in rotatable contact with the outer surface of the movable rod (20).

8. The plate laser cutting device according to claim 7, characterized in that: The outer surface of the extrusion wheel (21) is provided with a mounting groove (36), the inner surface of the mounting groove (36) is fixedly connected to a magnetic plate (37), the mounting groove (36) and the magnetic plate (37) are provided in a plurality of groups and are distributed in a ring-shaped array, the magnetic plate (37) is in an arc shape, a cavity (39) is embedded in the inner side of the extrusion wheel (21), a cooling plate (38) is fixedly connected to the inner surface of the cavity (39), the cavity (39) is filled with cooling liquid, and the cooling plates (38) are provided in a plurality of groups and are distributed in a ring-shaped array.

9. A plate laser cutting device according to claim 8, characterized in that: The lower outer surface of the body (11) is fixedly connected to a support leg (42), the lower outer surface of the body (11) is fixedly connected to a material guide plate (12), the outer surface of the material guide plate (12) is inclined, a material receiving hopper (13) is provided at the lower side of the material guide plate (12), the upper end of the material receiving hopper (13) is open, the positioning wheel (25), the extrusion wheel (21) and the roller (26) are all made of wear-resistant material, the extrusion plate (34) is U-shaped, and the number of the notches (35) is two groups and they are symmetrically distributed.

10. A sheet metal laser cutting system according to claim 9, characterized in that: The steps include: S1: First, a thin plate is stacked on the upper surface of a roller (26), and the edge of the thin plate is squeezed by a squeezing plate (34) in cooperation with a positioning wheel (25) so that the thin plate remains stable during the cutting process; S2: During the clamping process, the positioning assembly is attached to the side wall of the thin plate through the positioning plate (32), so that the placement position of the thin plate is kept accurate, and the probability of mutual deviation between the thin plates of each group is reduced; S3: After the thin plate is placed stably, the movable frame 1 (14) and the movable frame 2 (15) drive the laser emitter (40) to perform laser cutting on the thin plate; S4: the pressing component presses the thin plate at a position near the cutting point of the thin plate through the pressing wheel (21), thereby reducing the probability of the thin plate being deformed by heat during the cutting process; S5: The extrusion wheel (21) is in rolling contact with the upper surface of the thin plate, which can have a certain cooling effect on the thin plate and increase the cooling speed of the thin plate.

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