A laser welding device for steel member machining

Abstract

The application belongs to the technical field of laser welding, and particularly relates to a laser welding device for steel member machining, which comprises two bases; a supporting table is installed on the base, a first moving assembly is installed on the supporting table, a moving table is installed on the first moving assembly, a second moving assembly is installed on the moving table, and a connecting table is installed on the second moving assembly; in the application, when the laser welding gun moves, the contact wheel can be ingeniously avoided from contacting the burrs at the edge of the steel member, even if there are burrs at the edge of the steel member, the contact wheel will not produce unnecessary floating, and the stable adhering state is always maintained, welding errors caused by burr interference are effectively eliminated, and the output power, welding speed and other key indexes of the laser welding gun can be automatically and accurately adjusted according to the material and thickness of the steel member and preset welding parameters, intelligent welding process control is realized, and the precision and quality stability of welding are further improved.

Description

Technical Field

[0001] This invention belongs to the field of laser welding technology, specifically a laser welding device for processing steel components. Background Technology

[0002] Steel structural members refer to composite steel structural members capable of bearing and transmitting loads, constructed from steel plates, angle steel, channel steel, I-beams, welded steel, or hot-rolled H-beams that have been cold-bent or welded together using connectors. Box-type steel structural members, in particular, have a large number of components, requiring precise positioning of each component during welding. Box-type components constitute a significant proportion of steel structural members in production. The welding process typically involves assembling multiple plates and welding them into a specific shape. The plates are first positioned using spot welding, followed by long-distance weld seams to complete the welding process of the steel structural member.

[0003] In the prior art, Chinese Patent Publication No. CN119282546A discloses an automatic welding device for box-shaped steel components, including a power trolley. The upper part of the power trolley is connected to a drive mechanism via a lifting device. The drive mechanism drives two connecting rods to move closer or further apart. The lower end of the connecting rods is provided with a guide wheel, and the connecting rods are provided with an adjustment assembly for positioning the welding torch. The adjustment assembly includes a movable rod one and a movable rod two, both of which are movably sleeved on the connecting rods. One end of the movable rod one abuts against the side of the box-shaped steel component, and one end of the movable rod two is connected to the welding torch. The other end of the movable rod one is provided with a connecting plate, and the other end of the movable rod two is connected to the connecting plate via a spring. The rod body of the movable rod two is sleeved with a positioning plate that abuts against the flange of the box-shaped steel component near the welding torch. This invention achieves automatic positioning of the welding torch, ensuring that the welding torch is always aligned with the weld seam without manual adjustment. It is applicable to welding box-shaped steel components of different specifications, has a wide range of applications, and is suitable for widespread use.

[0004] However, the aforementioned existing technologies still have significant shortcomings in practical applications. Specifically, the positioning plate needs to be tightly fitted to the edge of the steel component to achieve welding torch centering, but the edges of steel components often have burrs or uneven areas. These burrs create physical pressure and obstruction on the positioning plate, forcing it to deviate from its preset position and causing unexpected positional fluctuations. These fluctuations are directly transmitted to the welding torch, preventing it from stably aligning with the weld. Ultimately, this deviation will compromise the weld positioning accuracy and the stability of the welding process, thus affecting the overall welding quality of the steel component. Therefore, a laser welding device for steel component processing is needed to solve these problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a laser welding device for steel component processing. This invention primarily addresses the problem in existing technologies where the welding torch position easily shifts during the processing and welding of steel components, ultimately affecting the welding quality.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a laser welding device for processing steel components, comprising two bases; a support platform is installed on the base, a first moving component is installed on the support platform, a moving stage is installed on the first moving component, a second moving component is installed on the moving stage, a connecting stage is installed on the second moving component, an intermediate plate is installed on the connecting stage, a movable arm is installed on the intermediate plate, a laser welding gun is provided inside the movable arm, a contact wheel is installed on the side of the intermediate plate, a spring is installed on the other side of the intermediate plate, the other end of the spring is installed at the end of a first cylinder, a fixing plate is installed outside the first cylinder, and the fixing plate is installed on the moving stage.

[0007] As a further description of the above technical solution: two laser welding guns are symmetrically arranged and used to weld two welds on the upper side of the steel component.

[0008] As a further description of the above technical solution: the movable arm includes a first support rod and a second support rod. The first support rod is mounted on the middle plate. A rotating shaft is rotatably connected inside the first support rod. The second support rod is mounted outside the rotating shaft. A first gear is fixedly connected to the end of the rotating shaft. A second gear meshes with the first gear. A first drive motor is mounted outside the second gear. The first drive motor is mounted outside the first support rod.

[0009] As a further description of the above technical solution: the movable arm also includes a support arm, the second support rod and the support arm are rotatably locked together by a first locking shaft, the support arm is rotatably locked together by a second locking shaft, and the laser welding gun is located at the end of the second locking shaft.

[0010] As a further description of the above technical solution: the laser welding device also includes a support plate, with rotating disks installed at both ends of the support plate, a hollow shaft installed outside the rotating disks, a bearing installed outside the hollow shafts, a mounting base installed outside the bearings, a base plate installed under the mounting bases, a third gear installed outside the hollow shafts, a fourth gear meshing with the third gear, a second drive motor installed outside the fourth gear, the second drive motor being mounted on the base plate, and a locking assembly installed inside the rotating disks.

[0011] As a further description of the above technical solution: the locking assembly includes a second cylinder, which is installed inside the rotating disk. A connecting seat is installed at one end of the second cylinder outside the hollow shaft. A tensioning assembly is installed on the side of the connecting seat away from the rotating disk. The locking assembly also includes a pressing assembly, which is located inside the connecting seat. Two guide rods are installed on the side of the connecting seat near the rotating disk, and the guide rods are slidably connected inside the rotating disk.

[0012] As a further description of the above technical solution: the tensioning assembly includes a contact plate installed outside the connecting seat, a third cylinder installed inside the contact plate, a top plate installed at the end of the third cylinder, the pressing assembly includes a backing plate slidably connected inside the connecting seat, a connecting sleeve slidably connected outside the backing plate, the connecting sleeve being installed on the side of the connecting seat, a connecting rod being installed outside the backing plate, a fourth cylinder being installed outside the connecting rod, and the fourth cylinder being installed outside the connecting seat.

[0013] As a further description of the above technical solution: the contact plate is provided with an installation groove on the side near the inner wall of the steel component, and pressure sensors are installed in the installation grooves located on the upper and lower sides.

[0014] As a further description of the above technical solution: an air blowing pipe is installed on the contact wheel, and the air blowing pipe has a downwardly inclined air blowing hole near the steel component, and the air blowing range of the air blowing pipe through the air blowing hole is greater than the diameter of the contact wheel.

[0015] As a further description of the above technical solution: the bearing plate is provided with a lifting groove for the lifting strap of the lifting steel component to pass through.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. In this invention, the contact wheel can be precisely controlled to fit tightly against the surface of the steel component. This design ensures that the contact wheel maintains a stable and reliable fit throughout the entire movement of the laser welding gun, preventing it from detaching from the steel component surface due to external interference. This lays a solid foundation for subsequent precise welding operations. In the actual processing of steel components, burrs often exist at their edges. In traditional welding devices, the contact wheel is easily affected by these burrs during movement, causing it to float and thus affecting the accuracy of the welding. However, this invention, through its unique design, cleverly avoids contact between the contact wheel and the burrs at the edge of the steel component during the movement of the laser welding gun. Even if burrs are present at the edge of the steel component, the contact wheel will not float unnecessarily, maintaining a stable fit. This effectively eliminates welding errors caused by burr interference. Furthermore, it can automatically and precisely adjust key indicators such as the output power and welding speed of the laser welding gun according to the material and thickness of the steel component and preset welding parameters, achieving intelligent welding process control and further improving the accuracy and quality stability of the welding.

[0018] 2. This invention cleverly incorporates an air-blowing pipe. Its air holes allow air to be blown onto the contact surface just before the contact wheel makes contact with the steel component, effectively cleaning debris adhering to the steel component's surface until the contact wheel firmly rests against the side of the steel component, ensuring a clean and debris-free contact surface. Subsequently, the controller precisely stops the first cylinder and simultaneously starts the first drive motor. The first drive motor, via the second gear, drives the first gear and the rotating shaft to rotate, causing the second support rod and laser welding torch to rotate downwards to align with the weld seam of the steel component. During this process, the air-blowing pipe continuously blows air to clean and prevent debris from getting trapped between the contact wheel and the steel component, thus avoiding... The contact wheel's wobbling ensures that the laser welding torch can stably and accurately weld steel components, laying the foundation for high-quality welding. During welding, steel components accumulate a large amount of heat. If this heat is not dissipated in time, the part in contact with the contact wheel is prone to deformation due to high temperature, affecting welding accuracy. The air blowing pipe of this invention blows air onto the surface of the steel component through air holes, accelerating the component's own heat dissipation efficiency and effectively reducing the probability of deformation of the contact part due to high welding temperatures. This not only ensures the precise and stable horizontal movement of the contact wheel and laser welding torch but also further ensures the welding quality of the steel component, reducing welding defects caused by deformation.

[0019] 3. In this invention, a locking assembly is used to precisely position the steel component, providing a stable reference for subsequent welding operations. The controller systematically controls the actions of each component. First, the first cylinder operates, driving the spring and intermediate plate closer to the steel component until the contact wheel is tightly against the surface of the steel component, ensuring stable contact at the start of welding. Next, the controller directs the first drive motor to operate, which, through the transmission of the second gear, the first gear, and the rotating shaft, controls the second support rod and the laser welding torch to rotate upwards to the position of the corresponding weld seam on the steel component, achieving precise positioning of the laser welding torch and preparing for high-quality welding. After welding the two weld seams on the upper side of the steel component, the device can flexibly adjust its state, and the controller again controls the first drive motor. The system operates by rotating the second support rod and laser welding gun upwards to the upper side of the steel component. Simultaneously, the first cylinder is shortened, causing the spring and intermediate plate to move away from the steel component, separating the contact wheel from the steel component and moving the contact wheel and laser welding gun outside the rotation trajectory of the steel component to avoid interference during subsequent rotations. Subsequently, the controller stops the first cylinder and starts the second drive motor. Through the transmission of the fourth gear, the third gear, and the hollow shaft, the rotating disk and the bearing plate drive the steel component to rotate 180°. Afterwards, the above steps can be repeated to weld the other two welds on the steel component. This method of welding four welds sequentially by rotating the steel component is convenient and quick, greatly improving the efficiency of steel component welding. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the support platform from the right side in this invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the mobile platform in this invention;

[0024] Figure 4 This is a side-view three-dimensional structural schematic diagram of the mobile station in this invention;

[0025] Figure 5 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the hollow shaft in this invention;

[0026] Figure 6 This is a schematic diagram of a partial frontal cross-sectional view of the hollow shaft in this invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the locking component in this invention;

[0028] Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of the connecting seat in this invention;

[0029] Figure 9 This is a schematic diagram of the three-dimensional cross-sectional structure of the contact plate in this invention.

[0030] In the diagram: 1. Base; 2. Support platform; 3. First moving component; 4. Moving platform; 5. Second moving component; 6. Connecting platform; 7. Intermediate plate; 8. Movable arm; 81. First support rod; 82. Second support rod; 83. Support arm; 84. Rotating shaft; 85. First gear; 86. Second gear; 87. First drive motor; 88. First locking shaft; 89. Second locking shaft; 9. Laser welding gun; 10. Contact wheel; 11. Spring; 12. First cylinder; 13. Fixed plate; 14. Air pipe; 15. Bearing plate; 16. Rotary... 17. Turntable; 18. Hollow shaft; 19. Bearing; 20. Mounting base; 21. Base plate; 22. Third gear; 23. Fourth gear; 24. Second drive motor; 25. Locking assembly; 26. Second cylinder; 27. Guide rod; 28. Connecting seat; 29. ​​Tensioning assembly; 20. Contact plate; 21. Pressure sensor; 22. Third cylinder; 23. Top plate; 24. Pressing assembly; 24.5. Support plate; 24.5. Connecting sleeve; 24.5. Connecting rod; 24.5. Fourth cylinder; 25. Lifting slot. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1 to 9 As shown, a laser welding device for processing steel components includes two bases 1; a support platform 2 is installed on the base 1, a first moving component 3 is installed on the support platform 2, a moving stage 4 is installed on the first moving component 3, a second moving component 5 is installed on the moving stage 4, a connecting platform 6 is installed on the second moving component 5, an intermediate plate 7 is installed on the connecting platform 6, a movable arm 8 is installed on the intermediate plate 7, a laser welding gun 9 is provided inside the movable arm 8, a contact wheel 10 is installed on the side of the intermediate plate 7, a spring 11 is installed on the other side of the intermediate plate 7, the other end of the spring 11 is installed at the end of a first cylinder 12, a fixing plate 13 is installed outside the first cylinder 12, and the fixing plate 13 is installed on the moving stage 4.

[0033] The first moving assembly 3 consists of a moving motor, a lead screw, and a threaded cap. The controller controls the extension of the first cylinder 12, which in turn moves the spring 11 and the intermediate plate 7, causing the contact wheel 10 to contact the surface of the steel component. Then, by controlling the rotation of the movable arm 8, the laser welding torch 9 is aligned with the weld seam on the steel component surface. The moving motor then controls the lead screw, which in turn moves the threaded cap and the moving table 4. The laser welding torch 9 moves to weld the weld seam. During this movement, the contact wheel 10 remains stably attached to the outer surface of the steel component, preventing the contact wheel 10 from floating due to burrs on the edge of the steel component. This ensures that the laser welding torch 9 accurately and stably corresponds to the weld seam position on the steel component, thereby guaranteeing the quality of the steel component welding.

[0034] like Figures 1 to 2 As shown, the two laser welding guns 9 are symmetrically arranged and used to weld the two weld seams on the upper side of the steel component.

[0035] Since both contact wheels 10 are in contact with the surface of the steel component, when the contact wheels 10 move along the surface of the steel component, the position of the movable arm 8 and the laser welding gun 9 relative to the contact wheels 10 remains stable. Even if the steel component tilts relative to the support platform 2, the two symmetrically arranged laser welding guns 9 can be accurately and stably aligned with the weld position of the steel component, thereby making the steel component welding process more efficient and precise.

[0036] like Figures 1 to 4 As shown, the movable arm 8 includes a first support rod 81 and a second support rod 82. The first support rod 81 is mounted on the intermediate plate 7. A rotating shaft 84 is rotatably connected inside the first support rod 81. The second support rod 82 is mounted outside the rotating shaft 84. A first gear 85 is fixedly connected to the end of the rotating shaft 84. A second gear 86 meshes with the first gear 85. A first drive motor 87 is mounted outside the second gear 86. The first drive motor 87 is mounted outside the first support rod 81.

[0037] When the steel component is placed between the two laser welding torches 9, the controller controls the first drive motor 87 to run, which in turn controls the first gear 85 and the rotating shaft 84 to rotate via the second gear 86. This, in turn, controls the second support rod 82 and the laser welding torch 9 to rotate upward. Simultaneously, the controller controls the first cylinder 12 to shorten, which in turn drives the spring 11 and the intermediate plate 7 to move away from the steel component until the contact wheel 10 and the laser welding torch 9 move to a position above the support platform 2. At this point, the steel component can be lowered between the two laser welding torches 9. The distance from the end of the laser welding torch 9 to the weld seam can be adjusted by adjusting the angle, thereby ensuring the best welding effect. At the same time, the welding torch and the contact wheel 10 can be controlled to avoid obstacles during the picking and placing of the steel component, thus making the welding process of the steel component smoother and more efficient.

[0038] like Figures 3 to 4 As shown, the movable arm 8 also includes a support arm 83. A first locking shaft 88 is rotatably locked between the second support rod 82 and the support arm 83. A second locking shaft 89 is rotatably locked inside the support arm 83. The laser welding gun 9 is located at the end of the second locking shaft 89.

[0039] When the laser welding torch 9 is positioned above the steel component, the second support rod 82 and the support arm 83 are rotated backward to a specified angle. Then, the tightening screw in the first locking shaft 88 is tightened, and the laser welding torch 9 and the support arm 83 are rotated to a specified angle. Then, the tightening screw in the second locking shaft 89 is tightened, thereby causing the laser welding torch 9 to rotate to the angle corresponding to the weld seam. At this time, the laser welding torch 9 is controlled to perform welding processing on the steel component. This solution can flexibly adjust the welding posture according to different welding requirements and the actual situation of the steel component. This flexibility greatly improves the welding effect of the laser welding torch 9 on the steel component and effectively avoids welding defects caused by improper welding posture.

[0040] like Figures 2 to 4 As shown, an air blowing pipe 14 is installed on the contact wheel 10. The air blowing pipe 14 has a downwardly inclined air blowing hole near the steel component, and the air blowing range of the air blowing pipe 14 through the air blowing hole is greater than the diameter of the contact wheel 10.

[0041] First, an external air pump is connected to the air blowing pipe 14. Then, the air pump is controlled to operate via a controller. Simultaneously, the controller controls the extension of the first cylinder 12, causing it to move the spring 11 and the intermediate plate 7 closer to the steel component. The air blowing pipe 14 blows air through the air holes onto the surface of the contact wheel 10 that is about to contact the steel component, cleaning the debris adhering to the surface until the contact wheel 10 abuts against the side of the steel component. Then, the controller stops the first cylinder 12 and activates the first drive motor 87. This causes the first drive motor 87 to control the first gear 85 and the rotating shaft 84 to rotate via the second gear 86, which in turn controls the second support rod 82 and the laser welding torch 9 to rotate downwards until the laser... The position of the welding torch 9 corresponds to the weld position of the steel component. Then, the controller controls the operation of the laser welding torch 9 and the moving motor. At this time, the moving motor controls the movement of the lead screw, which in turn drives the threaded cap and the moving table 4 to move. The laser welding torch 9 moves to weld the weld position. Since the blowing range of the air blowing pipe 14 through the air blowing hole is larger than the diameter of the contact wheel 10, the air blowing pipe 14 can blow air through the air blowing hole to clean the surface of the contact wheel 10 and the steel component that will be in contact. This prevents debris from getting stuck between the contact wheel 10 and the steel component and avoids the contact wheel 10 from detaching from the surface of the steel component. This ensures that the laser welding torch 9 can stably and accurately weld the steel component and guarantees the welding quality of the steel component.

[0042] Furthermore, since the steel components accumulate a lot of heat during welding, the air blowing pipe 14 blows air through the air blowing hole onto the surface of the steel components, thereby accelerating the heat dissipation efficiency of the steel components themselves and reducing the probability of deformation of the contact part between the steel components and the contact wheel 10 due to the high temperature of welding. This ensures the precise and stable horizontal movement of the contact wheel 10 and the laser welding gun 9, and thus ensures the welding quality of the steel components.

[0043] Example 2:

[0044] like Figures 5 to 6 As shown, the laser welding device also includes a support plate 15, with rotating disks 16 installed at both ends of the support plate 15. A hollow shaft 17 is installed outside the rotating disk 16, and a bearing 18 is provided outside the hollow shaft 17. A mounting seat 19 is installed outside the bearing 18, and a base plate 20 is installed below the mounting seat 19. A third gear 21 is installed outside the hollow shaft 17, and a fourth gear 22 meshes with the third gear 21. A second drive motor 23 is installed outside the fourth gear 22. The second drive motor 23 is installed on the base plate 20, and a locking assembly 24 is installed inside the rotating disk 16.

[0045] When welding steel components is required, firstly, spot welding is performed between the side plates of the steel component for positioning. Then, the steel component is placed on the bearing plate 15, and subsequently positioned by the locking assembly 24. The controller controls the first cylinder 12 to operate, causing the first cylinder 12 to drive the spring 11 and the intermediate plate 7 to move closer to the steel component until the contact wheel 10 is in contact with the surface of the steel component. Then, the controller controls the first drive motor 87 to operate, causing the first drive motor 87 to control the first gear 85 and the rotating shaft 84 to rotate via the second gear 86. This, in turn, controls the second support rod 82 and the laser welding gun 9 to rotate upwards to the position of the corresponding weld seam on the steel component. Then, the controller controls the laser welding gun 9 to weld the steel component. After the two upper weld seams are welded, the first drive motor 87 is then controlled to operate. The first drive motor 87 controls the first gear 85 and the rotating shaft 84 via the second gear 86. Rotating shaft 84 rotates, thereby controlling the second support rod 82 and laser welding gun 9 to rotate upwards to the upper side of the steel component. At the same time, the controller controls the first cylinder 12 to shorten, thereby causing the first cylinder 12 to drive the spring 11 and the intermediate plate 7 to move away from the steel component until the contact wheel 10 separates from the steel component and the contact wheel 10 and laser welding gun 9 move outside the rotation trajectory of the steel component. Then, the controller controls the first cylinder 12 to stop working and controls the second drive motor 23 to work. The second drive motor 23 controls the third gear 21 and the hollow shaft 17 to rotate through the fourth gear 22, thereby causing the hollow shaft 17 to drive the steel component to rotate 180° through the rotating disk 16 and the bearing plate 15. Then, the above steps can be repeated to weld the steel component again. By rotating the steel component, welding can be carried out quickly and easily at the four weld positions, thereby ensuring the efficiency of the steel component welding process.

[0046] like Figures 5 to 9 As shown, the locking assembly 24 includes a second cylinder 241, which is installed inside the rotating disk 16. A connecting seat 243 is installed at one end of the second cylinder 241 outside the hollow shaft 17. A tensioning assembly 244 is installed on the side of the connecting seat 243 away from the rotating disk 16. The locking assembly 24 also includes a pressing assembly 245, which is located inside the connecting seat 243. Two guide rods 242 are installed on the side of the connecting seat 243 near the rotating disk 16. The guide rods 242 are slidably connected inside the rotating disk 16.

[0047] After the steel component is placed on the bearing plate 15, the controller controls the extension of the second cylinder 241, which in turn drives the connecting seat 243 and the tensioning assembly 244 to move. This adjusts the tensioning assembly 244 to the inside of the steel component, thereby achieving tensioning and positioning of the steel component from the inside. This ensures that the steel component will not wobble in the horizontal direction after it is positioned, thus guaranteeing the stability of the steel component's positioning and allowing the subsequent welding process to proceed stably.

[0048] like Figures 8 to 9As shown, the tensioning assembly 244 includes a contact plate 2441 installed outside the connecting seat 243, a third cylinder 2443 installed inside the contact plate 2441, and a top plate 2444 installed at the end of the third cylinder 2443. The pressing assembly 245 includes a backing plate 2451 slidably connected inside the connecting seat 243, a connecting sleeve 2452 slidably connected outside the backing plate 2451, the connecting sleeve 2452 installed on the side of the connecting seat 243, a connecting rod 2453 installed outside the backing plate 2451, and a fourth cylinder 2454 installed outside the connecting rod 2453. The fourth cylinder 2454 is installed outside the connecting seat 243.

[0049] After the steel component is placed on the bearing plate 15, the controller controls the extension of the second cylinder 241, which in turn moves the connecting seat 243. When the connecting seat 243 approaches the steel component, the controller stops the second cylinder 241. Then, the controller controls the extension of the third cylinder 2443, which in turn moves the top plate 2444 against the inner wall of the steel component. The top plate 2444 then pushes the steel component until the other side of the contact plate 2441 contacts the inner wall of the steel component, thus completing the lateral tensioning and limiting of the steel component. Then, the controller controls the retraction of the fourth cylinder 2454, which in turn moves the connecting rod 2453 and the abutment plate 2451 deeper into the steel component, thereby allowing the abutment plate 2451 and the bearing plate 15 to stably support the steel component vertically. The support plate 2451 abuts against the inner wall of the steel component after the rotating disk 16 and the steel component rotate 180°. The abutment plate 2451 and the connecting sleeve 2452 cooperate to ensure stable vertical support for the steel component. In this scheme, one side of the contact plate 2441 is used as the lateral reference surface for tightening the steel component. With the third cylinder 2443 driving the top plate 2444 to abut against the surface of the steel component, the third cylinder 2443 can smoothly apply pressure to the steel component through the top plate 2444, realizing a smooth and accurate lateral tightening and positioning process for the steel component. The contact surface between the bearing plate 15 and the steel component serves as the vertical reference surface. With the abutment plate 2451 pressing and positioning the steel component, the steel component will not shake or shift during the welding process, thus ensuring the stability of the steel component during the welding process and guaranteeing the welding quality of the steel component to a certain extent.

[0050] like Figure 9 As shown, the contact plate 2441 has an installation groove on the side near the inner wall of the steel component, and pressure sensors 2442 are installed in the installation grooves on the upper and lower sides.

[0051] The controller controls the extension of the third cylinder 2443, which in turn controls the top plate 2444 to press against the inner wall of the steel component. The top plate 2444 then pushes the steel component to move until the other side of the contact plate 2441 contacts the inner wall of the steel component. If the detection values ​​of the two pressure sensors 2442 differ significantly, it indicates that the inner wall of the steel component is tilted relative to the contact plate 2441, and the contact plate 2441 is not tightly attached to the inner wall of the steel component. At this time, the controller controls the alarm to sound an alarm and cleans the inner wall of the steel component again. This ensures that the steel component remains stable and accurate during the internal support and positioning, prevents the steel component from tilting after positioning, and thus ensures the welding accuracy and quality of the steel component.

[0052] like Figures 5 to 6 As shown, the bearing plate 15 has a lifting slot 25 for the lifting straps of the lifting steel components to pass through.

[0053] When welding steel components is required, spot welding is first performed between the side plates of the steel components for positioning. Then, a crane is used to place the steel components on the bearing plate 15 using lifting straps. The lifting straps are then removed through the lifting slot 25. The lifting slot 25 facilitates the removal and assembly of the lifting straps, making the process of picking up and transferring steel components more convenient and smooth, thus facilitating the welding and handling of steel components.

[0054] During operation, when welding is required on the steel components, the side plates of the steel components are first spot-welded for positioning. Then, a crane is used to place the steel components on the bearing plate 15 using lifting straps. Subsequently, the controller controls the second cylinder 241 to operate, thereby causing the second cylinder 241 to move the connecting seat 243 toward the steel component. When the connecting seat 243 contacts the steel component, the controller controls the second cylinder 241 to stop working. Then, the controller controls the third cylinder 2443 to extend. At this time, the third cylinder 2443 controls the top plate 2444 to press against the inner wall of the steel component. Then, the top plate 2444 pushes the steel component to move until the other side of the contact plate 2441 contacts the inner wall of the steel component. At this time, the lateral tensioning and limiting of the steel component is completed. Then, the controller controls the fourth cylinder 2454 to shorten, thereby causing the fourth cylinder 2454 to move the connecting rod 2453 and the abutment plate 2451 in a direction that penetrates deeper into the steel component. Thus, the abutment plate 2451 and the bearing plate 15 stably provide vertical support for the steel component.

[0055] Then, the controller controls the first cylinder 12 to extend, thereby causing the first cylinder 12 to drive the spring 11 and the intermediate plate 7 to move closer to the steel component until the contact wheel 10 abuts against the side of the steel component. Subsequently, the controller controls the first cylinder 12 to stop working and controls the first drive motor 87 to work, thereby causing the first drive motor 87 to control the first gear 85 and the rotating shaft 84 to rotate through the second gear 86, thereby controlling the second support rod 82 and the laser welding gun 9 to rotate downward until the position of the laser welding gun 9 corresponds to the weld position of the steel component. At this time, the controller controls the laser welding gun 9 and the moving motor to run. At this time, the moving motor controls the lead screw to run, thereby causing the lead screw to drive the threaded cap and the moving table 4 to move. At this time, the laser welding gun 9 moves to perform welding treatment on the weld position.

[0056] After the two upper welds are completed, the first drive motor 87 is activated. The first drive motor 87 controls the rotation of the first gear 85 and the rotating shaft 84 via the second gear 86, thereby controlling the second support rod 82 and the laser welding torch 9 to rotate upwards to the upper side of the steel component. Simultaneously, the controller controls the first cylinder 12 to shorten, causing the first cylinder 12 to move the spring 11 and the intermediate plate 7 away from the steel component until the contact wheel 10 separates from the steel component, and the contact wheel 10 and the laser welding torch 9 move outside the rotation trajectory of the steel component. Then, the controller stops the first cylinder 12 and activates the second drive motor 23. The second drive motor 23 controls the rotation of the third gear 21 and the hollow shaft 17 via the fourth gear 22. The hollow shaft 17 moves, causing the connecting seat 243 to rotate via the two guide rods 242. Simultaneously, the connecting seat 243 supports the steel component via the contact plate 2441 and the abutment plate 2451, causing the bearing plate 15 and the steel component to rotate 180°. Then, the controller stops the second drive motor 23 and extends the first cylinder 12, causing the first cylinder 12 to move the spring 11 and the intermediate plate 7 closer to the steel component until the contact wheel 10 abuts against the side of the steel component. The controller then stops the first cylinder 12 and activates the first drive motor 87, causing the first drive motor 87 to control the first gear 85 and the rotating shaft 84 to rotate via the second gear 86, thereby controlling the second support... The rod 82 and the laser welding torch 9 rotate downwards until the position of the laser welding torch 9 corresponds to the weld position of the steel component. At this time, the controller controls the operation of the laser welding torch 9 and the moving motor. The moving motor controls the lead screw, which in turn moves the threaded cap and the moving table 4. The laser welding torch 9 moves to weld the weld position. After welding is completed, the controller controls the operation of the first drive motor 87. The first drive motor 87 controls the rotation of the first gear 85 and the rotating shaft 84 through the second gear 86, which in turn controls the second support rod 82 and the laser welding torch 9 to rotate upwards to the upper side of the steel component. At the same time, the controller controls the first cylinder 12 to shorten, which causes the first cylinder 12 to move the spring 11 and the intermediate plate 7 away from the steel component. The laser welding gun 9 moves until the contact wheel 10 separates from the steel component, and the contact wheel 10 and the laser welding gun 9 move outside the rotation trajectory of the steel component. At this time, the third cylinder 2443 and the fourth cylinder 2454 are shortened. The third cylinder 2443 drives the top plate 2444 to separate from the steel component. At the same time, the fourth cylinder 2454 drives the connecting rod 2453 and the abutment plate 2451 to move in the direction of removing the steel component. Then, the controller controls the second cylinder 241 to shorten, so that the second cylinder 241 drives the connecting seat 243, the top plate 2444 and the abutment plate 2451 to move away from the steel component until the contact plate 2441 is removed from the inside of the steel component. At this time, the controller controls the second cylinder 241 to stop working. Then the welded steel component can be removed.

[0057] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A laser welding device for processing steel members, comprising two bases (1); characterized in that: A support platform (2) is installed on the base (1); a first moving component (3) is installed on the support platform (2); a moving stage (4) is installed on the first moving component (3); a second moving component (5) is installed on the moving stage (4); a connecting platform (6) is installed on the second moving component (5); a middle plate (7) is installed on the connecting platform (6); a movable arm (8) is installed on the middle plate (7); a laser welding gun (9) is provided inside the movable arm (8); a contact wheel (10) is installed on the side of the middle plate (7); a spring (11) is installed on the other side of the middle plate (7); the other end of the spring (11) is installed at the end of the first cylinder (12); a fixing plate (13) is installed outside the first cylinder (12); the fixing plate (13) is installed on the moving stage (4); The laser welding device further includes a support plate (15); a rotating disk (16) is installed at both ends of the support plate (15); a hollow shaft (17) is installed outside the rotating disk (16); a bearing (18) is provided outside the hollow shaft (17); a mounting seat (19) is installed outside the bearing (18); a base plate (20) is installed under the mounting seat (19); a third gear (21) is installed outside the hollow shaft (17); a fourth gear (22) meshes with the third gear (21); a second drive motor (23) is installed outside the fourth gear (22); the second drive motor (23) is installed on the base plate (20); a locking assembly (24) is installed inside the rotating disk (16). The locking assembly (24) includes a second cylinder (241); the second cylinder (241) is installed inside the rotating disk (16); a connecting seat (243) is installed at one end of the second cylinder (241) outside the hollow shaft (17); a tensioning assembly (244) is installed on the side of the connecting seat (243) away from the rotating disk (16); the locking assembly (24) also includes a pressing assembly (245); the pressing assembly (245) is located inside the connecting seat (243); two guide rods (242) are installed on the side of the connecting seat (243) near the rotating disk (16); the guide rods (242) are slidably connected inside the rotating disk (16); The tensioning assembly (244) includes a contact plate (2441) installed outside the connecting seat (243); a third cylinder (2443) is installed inside the contact plate (2441); a top plate (2444) is installed at the end of the third cylinder (2443); the pressing assembly (245) includes a stop plate (2451) slidably connected inside the connecting seat (243); a connecting sleeve (2452) is slidably connected outside the stop plate (2451); the connecting sleeve (2452) is installed on the side of the connecting seat (243); a connecting rod (2453) is installed outside the stop plate (2451); a fourth cylinder (2454) is installed outside the connecting rod (2453); the fourth cylinder (2454) is installed outside the connecting seat (243).

2. A laser welding apparatus for processing a steel member according to claim 1, characterized in that: Two laser welding guns (9) are symmetrically arranged and used to weld two welds on the upper side of the steel component.

3. A laser welding apparatus for processing a steel member according to claim 2, characterized in that: The movable arm (8) includes a first support rod (81) and a second support rod (82); the first support rod (81) is mounted on the intermediate plate (7); a rotating shaft (84) is rotatably connected inside the first support rod (81); the second support rod (82) is mounted outside the rotating shaft (84); a first gear (85) is fixedly connected to the end of the rotating shaft (84); a second gear (86) meshes with the first gear (85); a first drive motor (87) is mounted outside the second gear (86); the first drive motor (87) is mounted outside the first support rod (81).

4. The laser welding device for processing steel components according to claim 3, characterized in that: The movable arm (8) also includes a support arm (83); a first locking shaft (88) is rotatably locked between the second support rod (82) and the support arm (83); a second locking shaft (89) is rotatably locked inside the support arm (83); the laser welding gun (9) is located at the end of the second locking shaft (89).

5. The laser welding device for processing steel components according to claim 4, characterized in that: The contact plate (2441) has an installation groove on the side near the inner wall of the steel component, and pressure sensors (2442) are installed in the installation grooves on the upper and lower sides.

6. The laser welding device for processing steel components according to claim 5, characterized in that: An air blowing pipe (14) is installed on the contact wheel (10); the air blowing pipe (14) has a downwardly inclined air blowing hole near the steel component, and the air blowing range of the air blowing pipe (14) through the air blowing hole is greater than the diameter of the contact wheel (10).

7. The laser welding device for processing steel components according to claim 6, characterized in that: The bearing plate (15) is provided with a lifting groove (25) for passing through the lifting strap of the lifting steel component.

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