Efficient welding equipment for steel structure for construction

Abstract

The invention relates to the technical field of welding, in particular to efficient steel structure welding equipment for construction, which comprises a support frame and a rotating frame, a fixed frame is fixedly mounted at the top end of the support frame, a mounting groove is formed in the top of the fixed frame, guide blocks are slidably connected to two sides of the mounting groove, and a support plate perpendicular to the fixed frame is fixedly connected to the top ends of the guide blocks. A supporting block is movably connected to the top of the supporting plate, first sliding grooves are formed in the two sides of the top end of the supporting block, first sliding blocks are slidably connected into the two first sliding grooves, a rotating shaft is rotatably connected between the tops of the two first sliding blocks, and rotating frames are fixedly connected to the two sides of the rotating shaft. The distance between the two opposite rotating frames above the two supporting frames is adjusted according to the distance between the midpoints of the beveled joint faces on the two sides of the steel plates, it can be effectively guaranteed that the bottom beveled joint faces of the two upper steel plates abut against the beveled joint faces of the lower steel plates all the time, and splicing tightness is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a high-efficiency welding equipment for steel structures used in construction. Background Technology

[0002] During construction, steel structural components are needed for reinforcement. Common types include cylindrical and rectangular components. In some construction sites with special requirements, triangular steel structural components are also used. These triangular steel structural components are generally made by splicing and welding steel plates.

[0003] To improve the connection strength of triangular steel structural components, bevel joints need to be set on the splicing surfaces of each steel plate during splicing. This increases the splicing area between the two steel plates and improves the stability of the steel structural components. However, existing steel structural component welding equipment is not suitable for directly and stably splicing triangular steel structural components, and there are also shortcomings in the butt joints. Often, manual adjustment of the splicing angle of the steel plates and manual control of clamps to fix the steel plates are required, which makes the final welded triangular steel structural components prone to errors. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency welding equipment for steel structures used in construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency steel structure welding equipment for construction includes a support frame and a rotating frame. Two support frames are provided. A fixed frame is fixedly installed at the top of each support frame. An installation groove is formed at the top of the fixed frame. Guide blocks are slidably connected to both sides of the installation groove. A support plate perpendicular to the fixed frame is fixedly connected to the top of each guide block. A support block is movably connected to the top of the support plate. First sliding grooves are formed on both sides of the top of each support block. First sliders are slidably connected within the two first sliding grooves. A rotating shaft is rotatably connected between the tops of the two first sliders. A rotating frame is fixedly connected to both sides of the rotating shaft. A slot is formed on the opposite face of the two rotating frames. Hydraulic pistons are movably connected to both sides of the inner wall of the slot. A bracket is fixedly connected to the side wall of the first slider on the side furthest from the slot. A first motor is fixedly installed at the top of the bracket. The output shaft of the first motor is fixedly connected to the rotating shaft. The telescopic end of an electric telescopic rod is rotatably connected to the middle of the rotating shaft. The fixed end of the electric telescopic rod is rotatably installed at the end of the support plate. A connecting plate is fixedly connected to the bottom of the support frame. A second sliding groove is formed at the top of the connecting plate. An electric slider is slidably connected within the second sliding groove. An annular block with an open bottom is fixedly connected to the top of each of the two electric sliders. It also includes a steel plate, both ends of which are provided with beveled joints.

[0006] Preferably, a guide rod is fixedly connected to one side of the mounting groove, and a bidirectional screw is rotatably connected to the other side of the mounting groove. The threads on both sides of the bidirectional screw are threadedly connected to two guide blocks, and the guide rod is slidably connected to two guide blocks.

[0007] Preferably, the bottom end of the support plate is threaded with a fine-adjustment screw, and the top of the fine-adjustment screw is rotatably connected to the bottom end of the support block.

[0008] Preferably, the top of the support block below the bracket is provided with a guide groove, the bottom of the bracket is slidably connected to the guide groove, and the rotating frame is provided with an oil pipe port connected to the hydraulic piston on the side wall away from the groove. The oil pipe port is connected to an external hydraulic pump.

[0009] Preferably, a second motor is fixedly installed at the bottom of the fixing frame below the bidirectional screw, and the output shaft of the second motor is rotatably connected to the center of the bidirectional screw through a synchronous pulley and a synchronous belt passing through the mounting groove.

[0010] Preferably, an electric rotating rod is rotatably connected to the middle of the mounting groove near the guide rod, and a positioning ball is movably connected to the top of the rotating rod.

[0011] Preferably, the top structures of the two support frames are identical and symmetrical to each other. A comb-type conveyor belt is fixedly installed between the two support frames. The bottom two sides of the comb-type conveyor belt are slidably connected to one side of the support plate. A fixed platform is provided below the middle of the comb-type conveyor belt. A hydraulically driven lifting comb is slidably connected to the top of the fixed platform. The lifting comb is adapted to the comb-type conveyor belt.

[0012] Preferably, the inner walls of the top and bottom sides of the annular block are provided with two arc-shaped grooves. Movable plates are slidably connected in the arc-shaped grooves. Four electric rollers are rotatably connected to the inner walls of the two opposing movable plates. The top and bottom of the electric rollers abut against the arc-shaped rolling grooves inside the annular block. A fixed block is fixedly connected to the bottom of the two opposing movable plates. An electric cylinder is fixedly installed at the bottom of the fixed block. A connecting block is fixedly connected to the end of the electric cylinder. A welding gun is installed at the bottom of the connecting block. An irregularly shaped welding gun head is fixedly installed at the end of the welding gun.

[0013] Preferably, the connecting block is rotatably connected to two protective plates, the top of the protective plates has a cavity adapted to the welding gun, the bottom inner wall of the protective plates has an embedded groove adapted to the welding gun head, a tension spring is fixedly connected between the tops of the two opposite embedded grooves, and the bottom ends of the opposite surfaces of the two protective plates have slopes.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention, by setting up a first motor and a rotating frame, adjusts the distance between two opposing rotating frames above two support frames based on the distance between the midpoints of the inclined joint surfaces on both sides of the steel plate. It controls an electric telescopic rod to push a rotating shaft and a first slider to slide along a first groove. Ultimately, the distance between the two opposing rotating shafts is the same as the distance between the midpoints of the inclined joint surfaces on both sides of the steel plate. This effectively ensures that the bottom inclined joint surfaces of the two upper steel plates always abut against the inclined joint surface of the lower steel plate during the subsequent rotation of the rotating frame to adjust the splicing angle, thus ensuring a tight splice. The angle between the steel plates can be flexibly adjusted as needed by the first motor. The electric telescopic rod can also be used to adjust the distance between the two opposing rotating frames by sliding the two opposing rotating shafts and the first slider along the first groove. This allows the rotating frame to be applicable to steel plates of various widths. Fine-tuning screws can be used to fine-tune the height of the support blocks, ensuring that the rotating shaft and rotating frame maintain the midpoints of the inclined joint surfaces of the rotating shaft and the steel plate at the same horizontal plane when the thickness of the steel plate to be welded changes. This consistency between the rotation center of the rotating shaft and the center of the inclined joint surface helps reduce subsequent splicing errors.

[0015] This invention, by setting up a rotating rod and positioning balls, ensures that when the first and second steel plates are conveyed by the comb-type conveyor belt, the inclined joint surfaces of the first and second steel plates face the comb-type conveyor belt. During this process, by rotating the rotating rod, the two positioning balls can respectively abut against the inclined joint surfaces on both sides of the steel plate, which can limit and guide the steel plate, preventing the steel plate from shifting during the conveying process and affecting the subsequent splicing accuracy.

[0016] This invention, through the design of annular blocks and protective plates, creates a triangular steel plate structure. Three sets of welding torches are used to weld three oblique joints. If the specifications of the steel plates to be welded change, causing the positions of the oblique joints to shift, an electric roller can be controlled to rotate the fixed block along an arc-shaped groove. This ensures that each welding torch is directly facing each oblique joint, allowing for effective welding of triangular steel plate structures of different specifications using movable welding torches, meeting diverse usage requirements. Furthermore, the annular mounting of the welding torches ensures that it is not limited by welding position or space constraints in practical use. This system is also significant for improving the welding efficiency of triangular steel structural components. Before welding, the two protective plates on both sides of the welding torch are abutted by the tension of the springs and can protect the welding torch head through the embedded groove to prevent damage to the welding torch head. During welding, the protective plates can clamp the outer wall of the spliced ​​triangular steel plate. Finally, the three welding torch heads abut against the outer side of the three oblique joint surfaces respectively. The welding torch is started and the welding torch head is used to weld the outer side of the oblique joint surface. The protective plates, combined with the rotating frame and the hydraulic piston, can effectively fix the steel plate that has not yet been welded and prevent it from shifting, which is sufficient to ensure the stability of the splicing of the three steel plates and improve the welding effect. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of a high-efficiency welding equipment for steel structures used in construction, as proposed in this invention. Figure 2 This is a schematic diagram of the steel plate structure splicing state of a high-efficiency welding equipment for construction steel structures proposed in this invention; Figure 3 This is a schematic diagram of the steel plate structure conveying state of a high-efficiency welding equipment for construction steel structures proposed in this invention; Figure 4 This is a schematic diagram of a comb-type transmission belt structure for a high-efficiency steel structure welding equipment for construction proposed in this invention; Figure 5 This is a schematic diagram of the lifting comb tooth structure of a high-efficiency welding equipment for steel structures in construction proposed in this invention; Figure 6 This is a schematic diagram of the fixing frame structure of a high-efficiency steel structure welding equipment for construction proposed in this invention; Figure 7 This is a schematic diagram of the rotating rod structure of a high-efficiency welding equipment for steel structures used in construction, as proposed in this invention. Figure 8 This is a schematic diagram of the guide block structure of a high-efficiency welding equipment for steel structures in construction proposed in this invention; Figure 9 This is a schematic diagram of the support plate structure of a high-efficiency steel structure welding equipment for construction proposed in this invention; Figure 10 This is a schematic diagram of the rotating shaft structure of a high-efficiency welding equipment for steel structures used in construction, as proposed in this invention. Figure 11 This is a schematic diagram of the annular block structure of a high-efficiency welding equipment for steel structures in construction proposed in this invention; Figure 12 This is a schematic diagram of the closed state of the protective plate structure of a high-efficiency welding equipment for steel structures in construction proposed in this invention; Figure 13 This is a schematic diagram of the unfolded state of the protective plate structure of a high-efficiency welding equipment for steel structures used in construction, as proposed in this invention.

[0018] In the diagram: 1. Support frame; 2. Fixing frame; 3. Mounting slot; 4. Double-acting screw; 5. Guide rod; 6. Guide block; 7. Support plate; 8. Support block; 9. Fine-tuning screw; 10. First slide groove; 11. Guide groove; 12. First slider; 13. Rotating shaft; 14. Bracket; 15. First motor; 16. Electric telescopic rod; 17. Rotating frame; 18. Slot; 19. Hydraulic piston; 20. Second motor; 21. Synchronous belt; 22. Rotating rod; 2 3. Positioning ball; 24. Fixed platform; 25. Lifting comb teeth; 26. Comb-type conveyor belt; 27. Connecting plate; 28. Second chute; 29. ​​Electric slider; 30. Annular block; 31. Arc groove; 32. Movable plate; 33. Electric roller; 34. Fixed block; 35. Electric cylinder; 36. Connecting block; 37. Welding torch; 38. Welding torch head; 39. Protective plate; 40. Embedded groove; 41. Tension spring; 42. Ramp; 43. Steel plate; 44. Misaligned joint surface. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-13 A high-efficiency welding equipment for steel structures used in construction includes a support frame 1 and a rotating frame 17. Two support frames 1 are included. A fixed frame 2 is fixedly installed at the top of each support frame 1. An installation groove 3 is formed at the top of the fixed frame 2. Guide blocks 6 are slidably connected to both sides of the installation groove 3. A support plate 7 perpendicular to the fixed frame 2 is fixedly connected to the top of each guide block 6. A support block 8 is movably connected to the top of the support plate 7. First sliding grooves 10 are formed on both sides of the top of each support block 8. First sliders 12 are slidably connected within the two first sliding grooves 10. A rotating shaft 13 is rotatably connected between the tops of the two first sliders 12. The rotating frame 17 is fixedly connected to both sides of the rotating shaft 13. Openings are formed on the opposite faces of the two rotating frames 17. The groove 18 has hydraulic pistons 19 movably connected to both sides of its inner wall. A bracket 14 is fixedly connected to the side wall of the first slider 12 on the side away from the groove 18. A first motor 15 is fixedly installed on the top of the bracket 14. The output shaft of the first motor 15 is fixedly connected to the rotating shaft 13. The telescopic end of the electric telescopic rod 16 is rotatably connected to the middle of the rotating shaft 13. The fixed end of the electric telescopic rod 16 is rotatably installed at the end of the support plate 7. A connecting plate 27 is fixedly connected to the bottom of the support frame 1. A second sliding groove 28 is opened at the top of the connecting plate 27. An electric slider 29 is slidably connected in the second sliding groove 28. An annular block 30 with a bottom opening is fixedly connected to the top of the two electric sliders 29. It also includes steel plates 43, each with a beveled joint surface 44 at both ends. Three steel plates 43 are joined together in pairs via the beveled joint surfaces 44 and then welded into a triangular steel structure. Alternatively, two steel plates 43 can be welded into an open "<" shaped steel structure. The beveled joint surface 44 effectively improves the precision and stability of the splicing between the two steel plates 43. The angle between the steel plates 43 can be flexibly adjusted by the first motor 15 as needed to accommodate steel plates 43 of different widths or splicing angles. The distance between the two opposing rotating frames 17 above the two support frames 1 is adjusted according to the distance between the midpoints of the beveled joint surfaces 44 on both sides of the steel plates 43. This controls the electric telescopic rod 16 to push the rotating shaft 13 and the first slider. 12 slides along the first slide groove 10, and the distance between the two opposite rotating shafts 13 is the same as the distance between the midpoints of the inclined joint surfaces 44 on both sides of the steel plate 43. This can effectively ensure that the bottom inclined joint surfaces 44 of the two upper steel plates 43 always abut against the inclined joint surfaces 44 of the lower steel plate 43 during the subsequent process of the rotating frame 17 clamping the steel plate 43 and adjusting the splicing angle, which is conducive to ensuring the tightness of the splicing. The electric telescopic rod 16 can also be used to adjust the distance between the two opposite rotating shafts 13 and the first slider 12 sliding along the first slide groove 10 to adjust the distance between the two opposite rotating frames 17, so that the rotating frame 17 can be used for steel plates 43 of various widths.

[0021] As a technical optimization of the present invention, a guide rod 5 is fixedly connected to one side of the mounting groove 3, and a bidirectional screw 4 is rotatably connected to the other side of the mounting groove 3. The threads on both sides of the bidirectional screw 4 are respectively threaded to two guide blocks 6, and the two sides of the guide rod 5 are respectively slidably connected to the two guide blocks 6. The bidirectional screw 4 drives the two guide blocks 6 to move closer or further away from each other, so that the two rotating frames 17 on the same side can clamp or release the steel plate 43, and the guide rod 5 facilitates the stable sliding of the guide blocks 6.

[0022] As a technical optimization of the present invention, a fine-tuning screw 9 is threadedly connected to the bottom end of the support plate 7, and the top end of the fine-tuning screw 9 is rotatably connected to the bottom end of the support block 8. The fine-tuning screw 9 can be used to fine-tune the height of the support block 8, so that when the thickness of the steel plate 43 to be welded changes, the midpoint of the oblique joint surface 44 of the rotating shaft 13 and the steel plate 43 remains on the same horizontal plane, that is, the rotation center of the rotating shaft 13 is consistent with the center of the oblique joint surface 44, which helps to reduce subsequent splicing errors.

[0023] As a technical optimization of the present invention, a guide groove 11 is provided on the top of the support block 8 below the bracket 14. The bottom of the bracket 14 is slidably connected to the guide groove 11. An oil pipe port connected to the hydraulic piston 19 is provided on the side wall of the rotating frame 17 away from the groove 18. The oil pipe port is connected to an external hydraulic pump. The guide groove 11 facilitates the stable sliding of the bracket 14, i.e., the first motor 15, and also improves the overall stability of the first slider 12 and the rotating frame 17. The external hydraulic pump is used to provide oil pressure and power to the oil-using components.

[0024] As a technical optimization of the present invention, a second motor 20 is fixedly installed at the bottom end of the fixing frame 2 below the bidirectional screw 4. The output shaft of the second motor 20 passes through the mounting groove 3 via a synchronous pulley and a synchronous belt 21 and is rotatably connected to the center of the bidirectional screw 4. The second motor 20 drives the bidirectional screw 4 to rotate via the synchronous belt 21, thereby driving the guide blocks 6 to move closer or further apart synchronously.

[0025] As a technical optimization of the present invention, an electric rotating rod 22 is rotatably connected to the middle of the mounting groove 3 near the guide rod 5, and a positioning ball 23 is movably connected to the top of the rotating rod 22. When the comb-type conveyor belt 26 conveys the first and second steel plates 43, the inclined joint surfaces 44 of the first and second steel plates 43 face the comb-type conveyor belt 26. During this process, by rotating the rotating rod 22, the two positioning balls 23 can respectively abut against the inclined joint surfaces 44 on both sides of the steel plate 43, which can limit the position of the steel plate 43 and guide the steel plate 43 to prevent the steel plate 43 from shifting during the conveying process and affecting the subsequent splicing accuracy.

[0026] As a technical optimization of the present invention, the top structures of the two support frames 1 are identical and symmetrical. A comb-type conveyor belt 26 is fixedly installed between the two support frames 1. The bottom sides of the comb-type conveyor belt 26 are slidably connected to one side of the support plate 7. A fixed platform 24 is provided below the middle of the comb-type conveyor belt 26. A hydraulically driven lifting comb 25 is slidably connected to the top of the fixed platform 24. The lifting comb 25 is adapted to the comb-type conveyor belt 26. The comb-type conveyor belt 26 in the figure is only for illustration and easy viewing. The comb-type conveyor belt 26 is a continuous conveying method on a continuous production line, which is connected to both the front-end and back-end processes. The lifting comb 25 lifts three steel plates 43 at a time to facilitate clamping, positioning, and welding of the steel plates 43 respectively.

[0027] As a technical optimization of the present invention, two arc-shaped grooves 31 are provided on the inner walls of the top and bottom sides of the annular block 30. Movable plates 32 are slidably connected in the arc-shaped grooves 31. Four electric rollers 33 are rotatably connected to the inner walls of the two opposing movable plates 32. The top and bottom of the electric rollers 33 abut against the arc-shaped rolling grooves inside the annular block 30. A fixing block 34 is fixedly connected to the bottom of the two opposing movable plates 32. An electric cylinder 35 is fixedly installed at the bottom of the fixing block 34. A connecting block 36 is fixedly connected to the end of the electric cylinder 35. A welding gun 37 is installed at the bottom of the connecting block 36. An irregularly shaped welding gun head 38 is fixedly installed at the end of the welding gun 37. After the triangular steel plate 43 structure is assembled, three sets of welding torches 37 are used to weld the three oblique joint surfaces 44. If the specifications of the steel plate 43 to be welded change, causing the position of the oblique joint surface 44 after assembly to change, the electric roller 33 can be controlled to drive the fixing block 34 to rotate along the arc groove 31, so that each welding torch 37 can be directly facing each oblique joint surface 44. The movable welding torch 37 can effectively perform welding operations on triangular steel plate 43 structures of different specifications, meeting different usage requirements. The ring installation method of the welding torch 37 is not limited by the welding position and space in actual use, which is also of positive significance for improving the welding efficiency of triangular steel structure components.

[0028] As a technical optimization of the present invention, the connecting block 36 is rotatably connected to the two sides of the protective plate 39. The top of the protective plate 39 is provided with a cavity adapted to the welding gun 37. The inner wall of the bottom of the protective plate 39 is provided with an embedded groove 40 adapted to the welding gun head 38. A tension spring 41 is fixedly connected between the tops of the two opposite embedded grooves 40. The bottom of the opposite surfaces of the two protective plates 39 is provided with a ramp 42. Before welding, the two protective plates 39 on both sides of the welding torch 37 are pulled together by the tension of the spring 41 and can protect the welding torch head 38 through the embedded groove 40 to prevent damage to the welding torch head 38. During welding, each electric cylinder 35 is activated to push the connecting block 36 towards the inclined joint surface 44. As the movement proceeds, the slopes 42 of the two protective plates 39 first contact the outer wall of the spliced ​​triangular steel plate 43, so that the two protective plates 39 are pushed apart by the tension of the spring 41. At this time, the two protective plates 39 can clamp the outer wall of the spliced ​​triangular steel plate 43. Finally, the three welding torch heads 38 abut against the outer side of the three inclined joint surfaces 44 respectively. The welding torch 37 is activated to weld the outer side of the inclined joint surface 44 through the welding torch head 38. The protective plates 39, in combination with the rotating frame 17 and the hydraulic piston 19, can effectively fix the steel plate 43 that has not yet been welded and prevent it from shifting, which is sufficient to ensure the stability of the splicing of the three steel plates 43 and improve the welding effect.

[0029] In use, this invention sequentially transports three steel plates 43 via a comb-type conveyor belt 26, and first transports as follows: Figure 2The two upper steel plates 43 have their beveled surfaces 44 facing the comb-type conveyor belt 26, while the last lower steel plate 43 has its beveled surfaces 44 facing away from the comb-type conveyor belt 26, facilitating subsequent splicing.

[0030] The first motors 15 are started to drive the rotating shafts 13 and rotating frames 17 to rotate to a vertical position. The comb-type conveyor belt 26 is started to transport the first steel plate 43 in the aforementioned sequence. Before transport, the direction and position of the steel plate 43 are adjusted, and the two rotating rods 22 are adjusted so that the two positioning balls 23 can abut against the inclined surfaces 44 on both sides of the steel plate 43 to guide the steel plate 43. When the first steel plate 43 is transported to the middle of the lifting comb 25, the comb-type conveyor belt 26 is paused. At this time, the lifting comb 25 is controlled to rise and pass through the comb-type conveyor belt 26 to lift the steel plate 43. Then, the first motors 15 on both sides of a support frame 1 are controlled to drive the rotating shafts 13 and the two rotating frames 17 to rotate to a horizontal position, that is, the rotating frames 17 are level with the steel plate 43. Okay, at this time, the second motor 20 at the bottom of the support frame 1 drives the synchronous belt 21 and the bidirectional screw 4 to rotate, which in turn drives the two guide blocks 6 together with the support plate 7 and the support block 8 to slide towards each other along the mounting groove 3 and the guide rod 5. Finally, the two rotating frames 17 approach the steel plate 43 at the same time, and then the two ends of the steel plate 43 are respectively connected into the slots 18 of the two rotating frames 17. The hydraulic pistons 19 of the two rotating frames 17 are activated to clamp the two ends of the steel plate 43. The first motors 15 on both sides of the support frame 1 are controlled again to drive the rotating shaft 13 and the two rotating frames 17 to rotate the first steel plate 43 to a vertical position to wait. The lifting comb 25 descends and resets. Then the comb-type conveyor belt 26 transports the second steel plate 43 to the middle of the lifting comb 25. Following the above operation, the rotating frames 17 on both sides of the other support frame 1 are controlled to rotate the second steel plate 43 to a vertical position for standby. The lifting comb 25 descends and resets again. At the same time, the two rotating rods 22 drive the two positioning balls 23 to shift away from each other, without affecting the conveying of the third steel plate 43. Finally, the comb-type conveyor belt 26 conveys the third steel plate 43 to the middle of the lifting comb 25. The lifting comb 25 rises and lifts the third steel plate 43. During the process, the bottom inclined joint surface 44 of the first and second steel plates 43 can limit the inclined joint surface 44 on both sides of the third steel plate 43, so that the third steel plate 43 will not shift. At this time, the four first motors 15 on both sides of the two support frames 1 are controlled to rotate, driving the four rotating shafts 13. The rotating frame 17 drives the two steel plates 43 to rotate, and the top inclined joint surfaces 44 approach each other and finally abut. At the same time, the bottom inclined joint surface 44 abuts with the inclined joint surfaces 44 on both sides of the third steel plate 43, thus completing the splicing of the three steel plates 43. In actual use, if the thickness of the steel plate 43 increases, the support block 8 can be pushed up by rotating the fine adjustment screw 9, so that the midpoint of the final rotating shaft 13 and the inclined joint surface 44 of the steel plate 43 are on the same horizontal plane, ensuring the consistency between the rotation center of the aforementioned rotating shaft 13 and the center of the inclined joint surface 44. If the width of the steel plate 43 increases, the distance between the two relative rotating frames 17 can be adjusted by pulling the rotating shaft 13 and sliding the first slider 12 along the first slide groove 10 through the electric telescopic rod 16.

[0031] At this point, welding is performed on the outer side of the oblique joint surface 44 of the three spliced ​​steel plates 43. First, the two electric sliders 29 are activated to drive the annular block 30 to slide along the second slide groove 28 until the three welding guns 37 are on the same vertical plane as one end of the steel plate 43. If the specifications of the steel plate 43 to be welded change, causing the position of the oblique joint surface 44 after splicing to change, the electric roller 33 can be controlled to drive the fixing block 34 to rotate along the arc groove 31, so that each welding gun 37 can be directly facing each oblique joint surface 44. The electric cylinders 35 are activated to push the connecting block 36 towards the oblique joint surface 44. As the movement proceeds, the slopes 42 of the two guard plates 39 first contact the outer wall of the spliced ​​triangular steel plate 43, so that the two guard plates 39 are pushed open by the tension of the tension spring 41. At this time, the two guard plates 39 can clamp the outer wall of the spliced ​​triangular steel plate 43. Finally, the three welding gun heads 38 abut against the outer side of the three oblique joint surfaces 44 respectively, and the welding guns 37 are activated. Welding is performed on the outer side of the oblique joint surface 44 by welding gun head 38. At the same time, two electric sliders 29 are activated to drive the ring block 30 and three welding guns 37 to move at a constant speed along the outer side of the oblique joint surface 44, so that the three spliced ​​oblique joint surfaces 44 can be welded. After welding, the electric cylinder 35 retracts, the welding guns 37 and welding gun head 38 retract and reset, the two guard plates 39 are reset by the tension of the tension spring 41 to protect the welding gun head 38, the hydraulic pistons 19 of each rotating frame 17 reset and release the clamping of the steel plate 43, the second motor 20 drives the synchronous belt 21 and the bidirectional screw 4 to reverse, so that the rotating frames 17 move away from each other and detach from the welded triangular steel plate 43. The rotating frames 17 are rotated to the vertical state according to the above operation. The electric telescopic rod 16 pulls the rotating shaft 13 and the rotating frames 17 away from each other to provide conveying space for the steel plate 43. At this time, the lifting comb 25 descends and resets, and the welded triangular steel plate 43 descends to the comb-type conveyor belt 26 to be conveyed to the next station for operation.

[0032] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0033] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency welding equipment for steel structures used in construction, comprising a support frame (1) and a rotating frame (17), characterized in that: The number of support frames (1) is two. A fixed frame (2) is fixedly installed on the top of the support frame (1). The top of the fixed frame (2) is provided with a mounting groove (3). Guide blocks (6) are slidably connected to both sides of the mounting groove (3). A support plate (7) perpendicular to the fixed frame (2) is fixedly connected to the top of the guide block (6). A support block (8) is movably connected to the top of the support plate (7). A first sliding groove (10) is provided on both sides of the top of the support block (8). A first slider (12) is slidably connected in the two first sliding grooves (10). A rotating shaft (13) is rotatably connected between the tops of the two first sliders (12). A rotating frame (17) is fixedly connected to both sides of the rotating shaft (13). A slot (18) is provided on the opposite side of the two rotating frames (17). The inner wall of the slot (18) Hydraulic pistons (19) are movably connected to both sides. A bracket (14) is fixedly connected to the side wall of the first slider (12) on the side away from the groove (18). A first motor (15) is fixedly installed on the top of the bracket (14). The output shaft of the first motor (15) is fixedly connected to the rotating shaft (13). The telescopic end of the electric telescopic rod (16) is rotatably connected to the middle of the rotating shaft (13). The fixed end of the electric telescopic rod (16) is rotatably installed at the end of the support plate (7). A connecting plate (27) is fixedly connected to the bottom of the support frame (1). A second slide groove (28) is opened at the top of the connecting plate (27). An electric slider (29) is slidably connected in the second slide groove (28). An annular block (30) with a bottom opening is fixedly connected to the top of the two electric sliders (29). It also includes a steel plate (43), both ends of which are provided with beveled joints (44).

2. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: A guide rod (5) is fixedly connected to one side of the mounting groove (3), and a bidirectional screw (4) is rotatably connected to the other side of the mounting groove (3). The threads on both sides of the bidirectional screw (4) are threadedly connected to two guide blocks (6), and the two sides of the guide rod (5) are slidably connected to two guide blocks (6).

3. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: The bottom end of the support plate (7) is threaded with a fine-tuning screw (9), and the top end of the fine-tuning screw (9) is rotatably connected to the bottom end of the support block (8).

4. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: The support block (8) below the bracket (14) has a guide groove (11) on its top. The bottom of the bracket (14) is slidably connected to the guide groove (11). The rotating frame (17) is provided with an oil pipe port connected to the oil pressure piston (19) on the side wall away from the groove (18). The oil pipe port is connected to an external hydraulic pump.

5. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: The bottom of the fixed frame (2) below the bidirectional screw (4) is fixedly installed with a second motor (20). The output shaft of the second motor (20) passes through the mounting groove (3) via a synchronous pulley and a synchronous belt (21) and is rotatably connected to the center of the bidirectional screw (4).

6. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: The mounting groove (3) is rotatably connected to an electric rotating rod (22) on the side near the guide rod (5) in the middle, and a positioning ball (23) is movably connected to the top of the rotating rod (22).

7. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: The two support frames (1) have the same top structure and are symmetrical to each other. A comb-type conveyor belt (26) is fixedly installed between the two support frames (1). The bottom sides of the comb-type conveyor belt (26) are slidably connected to one side of the support plate (7). A fixed platform (24) is installed below the middle of the comb-type conveyor belt (26). A hydraulically driven lifting comb (25) is slidably connected to the top of the fixed platform (24). The lifting comb (25) is adapted to the comb-type conveyor belt (26).

8. The high-efficiency welding equipment for steel structures in construction according to claim 1, characterized in that: The annular block (30) has two arc-shaped grooves (31) on the top and bottom inner walls of both sides. Movable plates (32) are slidably connected in the arc-shaped grooves (31). Four electric rollers (33) are rotatably connected to the inner walls of the two opposing movable plates (32). The top and bottom of the electric rollers (33) abut against the arc-shaped rolling grooves inside the annular block (30). A fixed block (34) is fixedly connected to the bottom of the two opposing movable plates (32). An electric cylinder (35) is fixedly installed at the bottom of the fixed block (34). A connecting block (36) is fixedly connected to the end of the electric cylinder (35). A welding gun (37) is installed at the bottom of the connecting block (36). A non-shaped welding gun head (38) is fixedly installed at the end of the welding gun (37).

9. The high-efficiency welding equipment for steel structures in construction according to claim 8, characterized in that: The connecting block (36) is rotatably connected to the two sides of the guard plate (39). The top of the guard plate (39) is provided with a cavity that is compatible with the welding gun (37). The bottom inner wall of the guard plate (39) is provided with an embedded groove (40) that is compatible with the welding gun head (38). A tension spring (41) is fixedly connected between the tops of the two opposite embedded grooves (40). The bottom of the opposite surfaces of the two guard plates (39) is provided with a ramp (42).

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