Heavy steel structure laser processing equipment and processing technology

Abstract

The invention discloses heavy steel structure laser processing equipment and a processing technology, and relates to the technical field of laser welding processing, the heavy steel structure laser processing equipment comprises a placing table used for placing a steel box girder, AGV carrying vehicles are movably arranged on the two sides of the placing table, a first mounting frame is movably arranged on each AGV carrying vehicle, and a positioning assembly is arranged on each first mounting frame; a first movable groove is formed in the side, close to the steel box girder, of the first mounting frame, a clamping and delivering assembly is arranged in the first movable groove, an impact assembly used in cooperation with the clamping and delivering assembly is arranged on the first mounting frame, laser welding assemblies are arranged on the two sides of the first mounting frame, and a limiting and fixing assembly used in cooperation with the steel box girder is arranged on the placing table. A third driving unit used in cooperation with translation of the first mounting frame is arranged on the AGV carrying vehicle. During use, welding combination of the vertical reinforcing rib plate and the steel box girder is facilitated.

Description

Technical Field

[0001] This invention relates to the field of laser welding processing technology, and in particular to a heavy-duty steel structure laser processing equipment and processing technology. Background Technology

[0002] As a heavy steel structure, the steel box girder is a box-shaped steel beam structure made of steel plates and shaped steel connected by welding or bolts. It is one of the core load-bearing components of long-span bridges. Steel box girders are usually prefabricated in sections in the factory workshop, and then transported to the construction site by transport vehicles. At the construction site, they are hoisted and connected to quickly form a bridge, which greatly shortens the on-site construction period.

[0003] In the current production and processing of some steel box girders, multiple vertical stiffening plates are welded to both sides of the steel box girder to improve the overall strength of the steel box girder. However, due to the large structural volume of the steel box girder, the size of the vertical stiffening plates that need to be welded and installed is also large, and the existing technology is not convenient for welding the steel box girder and the vertical stiffening plates. Summary of the Invention

[0004] This invention provides a heavy-duty steel structure laser processing equipment and processing technology, which can solve the problem in the prior art that: due to the large structural volume of steel box girders, the size of the vertical stiffening plates that need to be welded and installed is also large, making it inconvenient to weld and assemble the steel box girders and the vertical stiffening plates.

[0005] A heavy-duty steel structure laser processing equipment includes a placement platform for placing steel box girders. AGV transport vehicles are movably mounted on both sides of the placement platform. Each AGV transport vehicle has a mounting frame movably mounted on it. The mounting frame has a positioning component. A movable groove is formed on the side of the mounting frame closest to the steel box girder, and a clamping and delivery component is disposed within the movable groove. An impact component is also provided on the mounting frame for use with the clamping and delivery component. Laser welding components are provided on both sides of the mounting frame. A limiting and fixing component for use with the steel box girder is provided on the placement platform. A drive unit is provided on the AGV transport vehicle for use with the translation of the mounting frame.

[0006] As a further technical solution of the present invention, each of the clamping and delivery components includes a clamp housing movably disposed in the movable slot 1. Two clamping plates are symmetrically and movably disposed inside the clamp housing. Multiple pairs of extension arms are symmetrically fixed on the side of the two clamping plates near the steel box girder. Each pair of extension arms has an installation groove on its opposite face. A vertical abutment wheel is rotatably disposed on the inner wall of each installation groove. A limit block is fixed on the inner wall of each pair of extension arms. A drive unit 1 that works in conjunction with the clamp housing is disposed on the mounting frame 1.

[0007] As a further technical solution of the present invention, each of the drive units includes a plurality of hydraulic rods fixed on one side wall of the mounting frame, one end of each hydraulic rod penetrating into the movable groove, and the end of the telescopic end of the hydraulic rod being fixedly connected to the outer side wall of the fixture housing.

[0008] As a further technical solution of the present invention, each impact component includes multiple pairs of mounting slots opened on one side wall of the mounting frame, and an impact cylinder is fixed in each mounting slot. The ends of the telescopic ends of two adjacent impact cylinders are fixed with the same impact plate.

[0009] As a further technical solution of the present invention, each of the positioning components includes an upper positioning plate and a lower positioning plate fixed to one side of the mounting bracket, and positioning slots are provided on the opposite surfaces of the upper positioning plate and the lower positioning plate.

[0010] As a further technical solution of the present invention, each of the laser welding components includes a second mounting frame fixed to one side wall of the mounting frame. A second movable groove is provided on one side of the second mounting frame. A lifting slider is movably arranged in the second movable groove. A multi-axis robotic arm is movably arranged on one side of the lifting slider. A laser welding gun is provided at the working end of the multi-axis robotic arm. A second drive unit is provided on the second mounting frame to cooperate with the lifting slider.

[0011] As a further technical solution of the present invention, each of the driving units includes a lead screw rotatably disposed on the inner wall of the movable groove, the lead screw thread passing through the lifting slider, and a working motor for cooperating with the rotation of the lead screw is fixed on the upper end face of each mounting bracket.

[0012] As a further technical solution of the present invention, the drive unit three includes a sinking trough opened on the upper end face of the AGV carrier. Multiple electric bearing guide rails are fixed to the bottom of each sinking trough. Electric bearing sliders are movably arranged on the multiple electric bearing guide rails located in the same sinking trough. Mounting bracket one is fixed to the upper end face of the electric bearing slider.

[0013] As a further technical solution of the present invention, the limiting and fixing component includes a plurality of L-shaped notches opened on the placement platform, each L-shaped notch is movably disposed in an L-shaped abutment block, and a hydraulic rod II is fixed in the L-shaped notch, the end of the extension end of the hydraulic rod II being fixedly connected to the L-shaped abutment block.

[0014] A laser processing technology for heavy steel structures includes the following steps: Step 1: The AGV transport vehicle moves horizontally to the welding processing area of ​​the steel box girder, places the vertical stiffening plate vertically on the positioning component, and then the clamping and delivery component clamps the vertical stiffening plate. Step two, the drive unit three causes the mounting frame one, carrying the clamping and delivery assembly and the vertical stiffening plate, to move horizontally closer to the side wall of the steel box girder until the vertical stiffening plate is inserted and engaged with the lower end panel and the upper end panel. Step 3: Under the action of the impact component, the vertical stiffening plate is moved further toward the steel box girder, so that the vertical stiffening plate is in contact with the side end panel of the steel box girder. Step four: The clamping and delivery assembly is moved away from the steel box girder, and then the laser welding assembly welds the vertical stiffening plates to the steel box girder.

[0015] The beneficial effects of this invention are: 1. In use, the AGV transport vehicle is moved horizontally to the welding area of ​​the steel box girder. Each AGV transport vehicle's mounting frame is positioned away from the steel box girder. Then, the worker vertically places the vertical reinforcing rib plate onto the positioning assembly. The clamping and delivery assembly first clamps the vertical reinforcing rib plate. Then, the drive unit three causes the mounting frame, along with the clamping and delivery assembly and the vertical reinforcing rib plate, to move horizontally towards the side wall of the steel box girder until the vertical reinforcing rib plate is inserted and engaged with the lower and upper end panels. Then, under the action of the impact assembly, the vertical reinforcing rib plate is further pushed towards... The system moves towards the steel box girder, allowing the vertical stiffening plates to align with the side end panels of the steel box girder. Then, the clamping and delivery assembly is moved away from the steel box girder, providing space for the laser welding assembly to weld the vertical stiffening plates to the steel box girder. Once the vertical stiffening plates in this area are welded to the steel box girder, the drive unit three causes the mounting frame one to move away from the steel box girder with the clamping and delivery assembly. The AGV then moves to the next area of ​​the steel box girder to be welded, repeating the above operation until all vertical stiffening plates are welded to the steel box girder. This system is convenient to use.

[0016] 2. In the initial state, the two cooperating extension arms are far apart, allowing the vertical reinforcing rib plate to be inserted between multiple pairs of extension arms. Then, the two clamping plates move closer together, causing each pair of cooperating extension arms to move closer together until the vertical abutting wheels on the extension arms abut against the surface of the vertical reinforcing rib plate, thus clamping the vertical reinforcing rib plate (preventing it from falling downwards). Then, the mounting bracket moves the clamp housing, clamping plates, extension arms, vertical abutting wheels, limit blocks, and vertical reinforcing rib plate towards the steel box girder, thereby inserting and engaging the vertical reinforcing rib plate into the lower end panel and upper end panel. Between the panels, because the limiting block abuts against the end of the vertical stiffening plate away from the steel box girder, the vertical stiffening plate will not move relative to the extension arm toward the direction of the mounting bracket during this process. When the vertical stiffening plate is inserted and engaged between the lower and upper panels, under the action of the impact component, it will cause the vertical stiffening plate to move further toward the direction of the steel box girder, thereby making the vertical stiffening plate fit against the side end panel of the steel box girder. During this process, the vertical stiffening plate will move relative to the extension arm toward the direction of the steel box girder. During this process, the extension arm and the vertical abutting wheel will not hinder the translation of the vertical stiffening plate.

[0017] 3. When the vertical reinforcing rib plate is installed on the clamping and delivery assembly, the two adjacent clamping plates are in a state of being far apart from each other, so that the vertical reinforcing rib plate can be placed between multiple pairs of extension arms. Then, the vertical reinforcing rib plate is inserted into the positioning slots on the upper positioning plate and the lower positioning plate to receive and position the vertical reinforcing rib plate. Then, the extension arms cooperate with the vertical abutment wheels to clamp the vertical reinforcing rib plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram showing the connection between the mounting bracket and the electric load-bearing slider in this invention; Figure 4 This is a schematic diagram of the connection between the mounting bracket and the fixture housing in this invention. Figure 1 ; Figure 5 This is a schematic diagram showing the connection between the extension arm and the limiting block in this invention; Figure 6 This is a schematic diagram showing the connection between the impact cylinder and the impact plate in this invention; Figure 7 This is a schematic diagram of the connection between the mounting bracket and the fixture housing in this invention. Figure 2 ; Figure 8This is a schematic diagram showing the connection between the clamp housing and the clamping plate in this invention; Figure 9 This is a schematic diagram showing the connection between the extension arm and the vertical contact wheel in this invention; Figure 10 This is a schematic diagram showing the connection between the mounting bracket 2 and the lifting slider in this invention; Figure 11 This is a schematic diagram of the internal structure of the L-shaped notch in this invention; Figure 12 Schematic diagram of existing steel box girder technology Figure 1 ; Figure 13 Schematic diagram of existing steel box girder technology Figure 2 .

[0019] In the diagram: 1. Placement platform; 2. AGV transport vehicle; 3. Mounting frame one; 4. Movable slot one; 5. Fixture housing; 6. Clamping plate; 7. Extension arm; 8. Vertical contact wheel; 9. Limiting block; 10. Hydraulic rod one; 11. Mounting notch; 12. Impact cylinder; 13. Impact plate; 14. Upper positioning plate; 15. Lower positioning plate; 16. Positioning slot; 17. Mounting frame two; 18. Movable slot two; 19. Lifting slider; 20. Multi-axis robotic arm; 21. Laser welding gun; 22. Lead screw; 23. Working motor; 24. Sinking trough; 26. Electric load-bearing slider; 27. L-shaped notch; 28. L-shaped contact block; 29. ​​Hydraulic rod two; 30. Steel box girder; 31. Lower end panel; 32. Upper end panel; 33. Side end panel; 34. Vertical reinforcing rib plate. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] Reference Figures 1-13 A heavy-duty steel structure laser processing equipment includes a placement platform 1 for placing a steel box girder 30. AGV carriers 2 are movably mounted on both sides of the placement platform 1. The AGV carriers 2 are existing technology. Each AGV carrier 2 is movably mounted with a mounting frame 3. The mounting frame 3 is equipped with a positioning component. The side of the mounting frame 3 closest to the steel box girder 30 has a movable groove 4. A clamping and delivery component is installed in the movable groove 4. An impact component is installed on the mounting frame 3 to cooperate with the clamping and delivery component. Laser welding components are installed on both sides of the mounting frame 3. A limiting and fixing component is installed on the placement platform 1 to cooperate with the steel box girder 30. A drive unit 3 is installed on the AGV carrier 2 to cooperate with the translation of the mounting frame 3.

[0022] The steel box girder 30 is existing technology. The steel box girder 30 includes a lower end panel 31, an upper end panel 32 and two side end panels 33, which are located between the lower end panel 31 and the upper end panel 32.

[0023] The proposed solution is used to weld vertical stiffening plates 34 on both sides of the steel box girder 30.

[0024] In use, the AGV transport vehicle 2 is moved horizontally to the welding area of ​​the steel box girder 30. The mounting frame 3 on each AGV transport vehicle 2 is positioned away from the steel box girder 30. Then, the worker vertically places the vertical reinforcing rib plate 34 onto the positioning assembly. The clamping and delivery assembly first clamps the vertical reinforcing rib plate 34. Then, the drive unit 3 causes the mounting frame 3, along with the clamping and delivery assembly and the vertical reinforcing rib plate 34, to move horizontally towards the side wall of the steel box girder 30 until the vertical reinforcing rib plate 34 is inserted and engaged with the lower end panel 31 and the upper end panel 32. Then, under the action of the impact assembly, the vertical reinforcing rib plate 34 is further moved towards the side wall. The vertical stiffener plate 34 moves towards the steel box girder 30, thereby bringing it into contact with the side end panel 33 of the steel box girder 30. Then, the clamping and delivery assembly is moved away from the steel box girder 30, providing space for the laser welding assembly to weld the vertical stiffener plate 34 to the steel box girder 30. After the vertical stiffener plate 34 in this area is welded to the steel box girder 30, the drive unit 3 causes the mounting frame 3 to move away from the steel box girder 30 with the clamping and delivery assembly. Then, the AGV transport vehicle 2 moves to the next area to be welded on the steel box girder 30. The above operation is repeated until all the vertical stiffener plates 34 are welded to the steel box girder 30. It is convenient to use.

[0025] Each clamping and delivery assembly includes a clamp housing 5 movably disposed within the movable slot 4. Two clamping plates 6 are symmetrically and movably disposed within the clamp housing 5. Multiple pairs of extension arms 7 are symmetrically fixed on one side of the two clamping plates 6 near the steel box girder 30. Each pair of extension arms 7 has a mounting groove on its opposite side. A vertical abutment wheel 8 is rotatably disposed on the inner wall of each mounting groove. A limit block 9 is fixed on the inner wall of each pair of extension arms 7. A drive unit 1 is disposed on the mounting frame 3 to cooperate with the clamp housing 5.

[0026] The clamp body, consisting of the clamp housing 5 and the two clamping plates 6, is existing technology. When the two clamping plates 6 move away from each other, they cause the two cooperating extension arms 7 to move away from each other. When the two clamping plates 6 move closer to each other, they cause the two cooperating extension arms 7 to move closer to each other.

[0027] In the initial state, the two cooperating extension arms 7 are far apart, allowing the vertical reinforcing rib plate 34 to be inserted between multiple pairs of extension arms 7. Then, the two clamping plates 6 move closer together, causing each pair of cooperating extension arms 7 to move closer together until the vertical abutting wheel 8 on the extension arm 7 abuts against the surface of the vertical reinforcing rib plate 34, thereby clamping the vertical reinforcing rib plate 34 (preventing it from falling downwards). Then, the mounting bracket 3 causes the clamp housing 5, clamping plates 6, extension arms 7, vertical abutting wheel 8, limiting block 9, and vertical reinforcing rib plate 34 to move towards the steel box girder 30, thereby inserting and engaging the vertical reinforcing rib plate 34 between the lower end panel 31 and the upper end panel 32. During this process, because the limiting block 9 abuts against the end of the vertical reinforcing rib 34 away from the steel box girder 30, the vertical reinforcing rib 34 will not move relative to the extension arm 7 toward the direction of approaching the mounting bracket 3. When the vertical reinforcing rib 34 is inserted and engaged between the lower end panel 31 and the upper end panel 32, under the action of the impact component, the vertical reinforcing rib 34 is further moved toward the direction of approaching the steel box girder 30, so that the vertical reinforcing rib 34 fits against the side end panel 33 of the steel box girder 30. During this process, the vertical reinforcing rib 34 will move relative to the extension arm 7 toward the direction of approaching the steel box girder 30. During this process, the extension arm 7 and the vertical abutting wheel 8 will not hinder the translation of the vertical reinforcing rib 34.

[0028] Each drive unit includes multiple hydraulic rods 10 fixed to the side wall of the mounting bracket 3. One end of each hydraulic rod 10 extends into the movable groove 4, and the end of the telescopic end of the hydraulic rod 10 is fixedly connected to the outer side wall of the clamp housing 5.

[0029] In the initial state, the mounting frame 3 is located away from the steel box girder 30. At this time, the telescopic end of the hydraulic rod 10 is in a retracted state, causing the clamp housing 5, clamping plate 6 and extension arm 7 to be located away from the steel box girder 30. This makes it convenient for the workers to place the vertical reinforcing rib plate 34 to be welded between the extension arms 7. After the vertical reinforcing rib plate 34 is placed between the extension arms 7, the telescopic end of the hydraulic rod 10 extends. Then, the drive unit 3 causes the mounting frame 3 to move towards the steel box girder 30 with the vertical reinforcing rib plate 34, thus moving the vertical reinforcing rib plate 34 to the welding processing position.

[0030] When the impact assembly causes the end of the vertical stiffening plate 34 to fit against the side end panel 33 of the steel box girder 30, the two clamping plates 6 move away from each other, causing the extension arm 7 and the vertical contact wheel 8 to move away from the side wall of the vertical stiffening plate 34. Then the telescopic end of the hydraulic rod 10 retracts, causing the clamp housing 5, clamping plates 6 and extension arm 7 to move away from the position of the steel box girder 30 (at this time, the mounting bracket 3 remains stationary), so as to prevent the extension arm 7 from affecting the welding operation.

[0031] Each impact assembly includes multiple pairs of mounting slots 11 opened on the side wall of the mounting bracket 3. Each mounting slot 11 is fixed with an impact cylinder 12. The ends of the telescopic ends of two adjacent impact cylinders 12 are fixed with the same impact plate 13.

[0032] In the initial state, the telescopic end of the impact cylinder 12 is in a retracted state. When the mounting bracket 13 cooperates with the extension arm 7 to insert and engage the vertical reinforcing rib plate 34 between the lower end panel 31 and the upper end panel 32, the telescopic end of the impact cylinder 12 extends, pushing the impact plate 13 to strike the side wall of the vertical reinforcing rib plate 34, thereby making the vertical reinforcing rib plate 34 fit against the side end panel 33 of the steel box girder 30.

[0033] Each positioning component includes an upper positioning plate 14 and a lower positioning plate 15 fixed to one side of the mounting bracket 3. Positioning slots 16 are provided on the opposite sides of the upper positioning plate 14 and the lower positioning plate 15.

[0034] When the vertical reinforcing rib plate 34 is installed onto the clamping and delivery assembly, the two adjacent clamping plates 6 are in a state of being far apart from each other, so that the vertical reinforcing rib plate 34 can be placed between multiple pairs of extension arms 7. Then, the vertical reinforcing rib plate 34 is inserted into the positioning slots 16 on the upper positioning plate 14 and the lower positioning plate 15 to receive and position the vertical reinforcing rib plate 34. Then, the extension arms 7 cooperate with the vertical abutment wheels 8 to clamp the vertical reinforcing rib plate 34.

[0035] Each laser welding assembly includes a mounting bracket 2 17 fixed to the side wall of mounting bracket 3. One side of mounting bracket 2 17 has a movable groove 2 18, and a lifting slider 19 is movably arranged in the movable groove 2 18. A multi-axis robotic arm 20 is movably arranged on one side of the lifting slider 19. A laser welding gun 21 is provided at the working end of the multi-axis robotic arm 20. A drive unit 2 is provided on mounting bracket 2 17 to cooperate with the lifting slider 19.

[0036] The multi-axis robotic arm 20 can perform multi-directional movements. Both the multi-axis robotic arm 20 and the laser welding gun 21 are existing technologies.

[0037] During welding operations, the lifting slider 19 can move up and down along with the multi-axis robotic arm 20 and the laser welding gun 21 to perform laser welding operations.

[0038] Each drive unit 2 includes a lead screw 22 rotatably mounted on the inner wall of the movable slot 2 18. The lead screw 22 is threaded through the lifting slider 19. Each mounting bracket 2 17 has a working motor 23 fixed on its upper end face to cooperate with the rotation of the lead screw 22.

[0039] When the working motor 23 drives the lead screw 22 to rotate in the forward direction, it will cause the lifting slider 19 to move downward. When the working motor 23 drives the lead screw 22 to rotate in the reverse direction, it will cause the lifting slider 19 to move upward.

[0040] The drive unit three includes a sinkhole 24 opened on the upper end face of the AGV carrier 2. Multiple electric bearing guide rails are fixed to the bottom of each sinkhole 24. Electric bearing sliders 26 are movably arranged on the multiple electric bearing guide rails located in the same sinkhole 24. The mounting bracket 3 is fixed to the upper end face of the electric bearing sliders 26.

[0041] Both the electric load-bearing guide rail and the electric load-bearing slider 26 are existing technologies used to realize the translation of the mounting bracket 3.

[0042] The limiting and fixing assembly includes multiple L-shaped slots 27 opened on the placement platform 1. Each L-shaped slot 27 is movably provided with an L-shaped abutment block 28. A hydraulic rod 29 is fixed in the L-shaped slot 27. The end of the extension end of the hydraulic rod 29 is fixedly connected to the L-shaped abutment block 28.

[0043] When in use, the telescopic end of the hydraulic rod 29 is in a retracted state, causing the inner wall of the L-shaped abutment block 28 to abut against the side wall of the side end panel 33 of the steel box girder 30, thereby limiting and fixing the steel box girder 30 and preventing the steel box girder 30 from shifting during the process of the clamping and delivery component and the impact component attaching the vertical reinforcing rib plate 34 to the side wall of the steel box girder 30.

[0044] A laser processing technology for heavy steel structures includes the following steps: Step 1: The AGV transport vehicle 2 moves horizontally to the welding processing area of ​​the steel box girder 30, places the vertical reinforcing rib plate 34 vertically on the positioning component, and then clamps the vertical reinforcing rib plate 34 with the clamping and delivery component. Step 2: Drive unit 3 causes mounting frame 1 3 to move translatably with clamping and delivery components and vertical stiffening plate 34 closer to the side wall of steel box girder 30 until the vertical stiffening plate 34 is inserted and engaged with the lower end panel 31 and the upper end panel 32. Step 3: Under the action of the impact component, the vertical stiffening plate 34 is moved further toward the direction of the steel box girder 30, so that the vertical stiffening plate 34 is in contact with the side end panel 33 of the steel box girder 30. Step four: The clamping and delivery assembly is moved away from the steel box girder 30, and then the laser welding assembly welds the vertical stiffening plate 34 to the steel box girder 30.

[0045] In use, the AGV transport vehicle 2 is moved horizontally to the welding area of ​​the steel box girder 30. The mounting frame 3 on each AGV transport vehicle 2 is positioned away from the steel box girder 30. Then, the worker vertically places the vertical reinforcing rib plate 34 onto the positioning assembly. The clamping and delivery assembly first clamps the vertical reinforcing rib plate 34. Then, the drive unit 3 causes the mounting frame 3, along with the clamping and delivery assembly and the vertical reinforcing rib plate 34, to move horizontally towards the side wall of the steel box girder 30 until the vertical reinforcing rib plate 34 is inserted and engaged with the lower end panel 31 and the upper end panel 32. Then, under the action of the impact assembly, the vertical reinforcing rib plate 34 is further moved towards the side wall. The steel box girder 30 moves in a certain direction, so that the vertical stiffening plate 34 fits against the side end panel 33 of the steel box girder 30. Then, the clamping and delivery assembly is moved away from the steel box girder 30, providing space for the laser welding assembly to weld the vertical stiffening plate 34 to the steel box girder 30. After the vertical stiffening plate 34 in this area is welded to the steel box girder 30, the drive unit 3 causes the mounting frame 1 3 to move away from the steel box girder 30 with the clamping and delivery assembly. Then, the AGV transport vehicle 2 moves to the next area to be welded on the steel box girder 30. The above operation is repeated until all the vertical stiffening plates 34 are welded to the steel box girder 30. It is convenient to use. In the initial state, the two cooperating extension arms 7 are far apart, allowing the vertical reinforcing rib plate 34 to be inserted between multiple pairs of extension arms 7. Then, the two clamping plates 6 move closer together, causing each pair of cooperating extension arms 7 to move closer together until the vertical abutting wheel 8 on the extension arm 7 abuts against the surface of the vertical reinforcing rib plate 34, thereby clamping the vertical reinforcing rib plate 34 (preventing it from falling downwards). Then, the mounting bracket 3 causes the clamp housing 5, clamping plates 6, extension arms 7, vertical abutting wheel 8, limiting block 9, and vertical reinforcing rib plate 34 to move towards the steel box girder 30, thereby inserting and engaging the vertical reinforcing rib plate 34 between the lower end panel 31 and the upper end panel 32. During this process, since the limiting block 9 abuts against the end of the vertical stiffening plate 34 away from the steel box girder 30, the vertical stiffening plate 34 will not move relative to the extension arm 7 toward the direction closer to the mounting bracket 3. When the vertical stiffening plate 34 is inserted and engaged between the lower end panel 31 and the upper end panel 32, under the action of the impact component, the vertical stiffening plate 34 is further moved toward the direction closer to the steel box girder 30, so that the vertical stiffening plate 34 fits against the side end panel 33 of the steel box girder 30. During this process, the vertical stiffening plate 34 will move relative to the extension arm 7 toward the direction closer to the steel box girder 30. During this process, the extension arm 7 and the vertical abutting wheel 8 will not hinder the translation of the vertical stiffening plate 34. When the vertical reinforcing rib plate 34 is installed onto the clamping and delivery assembly, the two adjacent clamping plates 6 are in a state of being far apart from each other, so that the vertical reinforcing rib plate 34 can be placed between multiple pairs of extension arms 7. Then, the vertical reinforcing rib plate 34 is inserted into the positioning slots 16 on the upper positioning plate 14 and the lower positioning plate 15 to receive and position the vertical reinforcing rib plate 34. Then, the extension arms 7 cooperate with the vertical abutment wheels 8 to clamp the vertical reinforcing rib plate 34.

[0046] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A heavy-duty steel structure laser processing equipment, comprising a placement platform (1) for placing a steel box girder (30), characterized in that, AGV carriers (2) are movably mounted on both sides of the placement platform (1). Each AGV carrier (2) is movably mounted with a mounting frame (3). The mounting frame (3) is equipped with a positioning component. The mounting frame (3) has a movable slot (4) on the side near the steel box girder (30). A clamping and delivery component is installed in the movable slot (4). An impact component is installed on the mounting frame (3) to cooperate with the clamping and delivery component. Laser welding components are installed on both sides of the mounting frame (3). A limiting and fixing component is installed on the placement platform (1) to cooperate with the steel box girder (30). A drive unit (3) is installed on the AGV carrier (2) to cooperate with the translation of the mounting frame (3).

2. The heavy-duty steel structure laser processing equipment according to claim 1, characterized in that, Each of the clamping and delivery components includes a clamp housing (5) movably disposed in the movable slot (4). Two clamping plates (6) are symmetrically and movably disposed inside the clamp housing (5). Multiple pairs of extension arms (7) are symmetrically fixed on one side of the two clamping plates (6) near the steel box beam (30). Each pair of extension arms (7) has an installation groove on its opposite side. A vertical abutment wheel (8) is rotatably disposed on the inner wall of each installation groove. A limit block (9) is fixed on the inner wall of each pair of extension arms (7). A drive unit (1) is provided on the mounting frame (3) to cooperate with the clamp housing (5).

3. The heavy-duty steel structure laser processing equipment according to claim 2, characterized in that, Each of the drive units includes multiple hydraulic rods (10) fixed to the side wall of the mounting frame (3). One end of each hydraulic rod (10) extends into the movable groove (4), and the end of the extension end of the hydraulic rod (10) is fixedly connected to the outer side wall of the fixture housing (5).

4. The heavy-duty steel structure laser processing equipment according to claim 1, characterized in that, Each of the impact components includes multiple pairs of mounting slots (11) opened on the side wall of the mounting bracket (3), and each mounting slot (11) is fixed with an impact cylinder (12), and the ends of the telescopic ends of two adjacent impact cylinders (12) are fixed with the same impact plate (13).

5. The heavy-duty steel structure laser processing equipment according to claim 1, characterized in that, Each of the positioning components includes an upper positioning plate (14) and a lower positioning plate (15) fixed to one side of the mounting bracket (3), and positioning slots (16) are provided on the opposite sides of the upper positioning plate (14) and the lower positioning plate (15).

6. The heavy-duty steel structure laser processing equipment according to claim 1, characterized in that, Each of the laser welding components includes a second mounting bracket (17) fixed to the side wall of the first mounting bracket (3). A movable slot (18) is provided on one side of the second mounting bracket (17). A lifting slider (19) is movably arranged in the movable slot (18). A multi-axis robotic arm (20) is movably arranged on one side of the lifting slider (19). A laser welding gun (21) is provided at the working end of the multi-axis robotic arm (20). A second drive unit (2) is provided on the second mounting bracket (17) to cooperate with the lifting slider (19).

7. The heavy-duty steel structure laser processing equipment according to claim 6, characterized in that, Each of the drive units includes a lead screw (22) rotatably mounted on the inner wall of the movable slot (18), the lead screw (22) threaded through the lifting slider (19), and a working motor (23) for cooperating with the rotation of the lead screw (22) fixed on the upper end face of each mounting bracket (17).

8. The heavy-duty steel structure laser processing equipment according to claim 1, characterized in that, The drive unit three includes a sinking trough (24) opened on the upper end face of the AGV carrier (2). Each sinking trough (24) has multiple electric bearing guide rails fixed at its inner bottom. Electric bearing sliders (26) are movably arranged on the multiple electric bearing guide rails located in the same sinking trough (24). Mounting bracket one (3) is fixed on the upper end face of the electric bearing sliders (26).

9. The heavy-duty steel structure laser processing equipment according to claim 1, characterized in that, The limiting and fixing assembly includes multiple L-shaped slots (27) opened on the placement platform (1). Each L-shaped slot (27) is movably provided with an L-shaped abutment block (28). A hydraulic rod (29) is fixed in the L-shaped slot (27). The end of the extension end of the hydraulic rod (29) is fixedly connected to the L-shaped abutment block (28).

10. A laser processing technology for heavy steel structures, characterized in that, Includes the following steps: Step 1: The AGV transport vehicle (2) moves horizontally to the welding processing area of ​​the steel box girder (30), places the vertical stiffening plate (34) vertically on the positioning component, and then clamps the vertical stiffening plate (34) with the clamping delivery component. Step 2: Drive unit 3 causes mounting frame 1 (3) to move with clamping delivery assembly and vertical stiffener plate (34) closer to the side wall of steel box girder (30) until the vertical stiffener plate (34) is inserted and engaged with the lower end panel (31) and the upper end panel (32). Step 3: Under the action of the impact component, the vertical stiffening plate (34) is moved further toward the steel box girder (30), so that the vertical stiffening plate (34) is in contact with the side end panel (33) of the steel box girder (30); Step four, the clamping and delivery assembly is moved away from the steel box girder (30), and then the laser welding assembly welds the vertical stiffening plate (34) to the steel box girder (30).

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