A precast steel component splicing welding anti-deformation support positioning device

Abstract

The present application relates to the technical field of welding positioning, in particular to a precast steel member splicing welding anti-deformation support positioning device, which comprises a welding chassis and a welding gun head, and a rolling clamping assembly is arranged in the welding chassis and used for rolling clamping the steel member during welding, the rolling clamping assembly comprises a base frame, a clamping seat and a rolling column, the rolling column conducts and radiates heat generated by welding of the steel member while rolling clamping the side edges of the steel member, the rolling column moves horizontally synchronously with the welding gun head, the copper rolling column and the welding gun head move synchronously through the rolling clamping assembly, the steel member is rolling clamped and radiated on both sides, a transverse centering assembly drives the rolling column to move synchronously and relatively, the clamping is automatically adjusted according to the width of the steel member, a turnover positioning assembly pushes a pressing seat to swing and descend, the steel member is elastically pressed at both ends, and a blowing and cleaning assembly moves with the pressing seat through a cleaning nozzle and blows and cleans the surface of the steel member from different angles.

Description

Technical Field

[0001] This invention relates to the field of welding positioning technology, and in particular to a precast steel component splicing welding anti-deformation support positioning device. Background Technology

[0002] Precast steel components are widely used in building structures, bridge engineering, and large equipment manufacturing. The quality of their splicing and welding directly affects the load-bearing capacity and dimensional accuracy of the overall structure. During the splicing and welding process of precast steel components, the concentrated welding heat input causes a rapid increase in the local temperature of the steel components, which easily leads to welding deformations such as angular deformation, wave deformation, and overall bending. This is especially true in long straight splicing welds, where the cumulative effect of thermal deformation is more pronounced. Currently, common welding support and positioning methods mostly use fixed clamps, temporary clamps, or simple clamping devices to statically constrain the steel components. Although these methods can limit the overall displacement of the components to a certain extent, they cannot synchronously adjust the support position with the movement of the welding torch. This results in a lack of continuous support and heat dissipation in the area near the weld during the welding process, leading to a large temperature gradient in the heat-affected zone and making it difficult to effectively control welding deformation.

[0003] In practical use, fixed support positioning devices typically apply clamping force only at a few discrete points on the steel component. The area between the support points is basically in a free state, and the fixed structures at both ends are complex, only able to clamp from both sides, making it difficult to adapt to the dynamic support requirements during the welding process. When the welding heat source moves along the weld, the base material on both sides of the weld undergoes rapid heating and cooling processes in sequence. The fixed support points cannot move synchronously with the heat source, resulting in the welding area not being effectively constrained in a timely manner. Heat continues to accumulate near the weld, increasing the temperature gradient. The local expansion of the steel plate is constrained by the distant fixed points, easily leading to warping and wavy deformation. For long straight splicing welds, this constraint lag caused by the fixed support position is even more prominent. Thermal deformation accumulates continuously along the weld direction, ultimately causing the overall dimensions of the component to exceed tolerances, reducing the quality of the splicing and welding of precast steel components. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a prefabricated steel component splicing and welding anti-deformation support and positioning device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a prefabricated steel component splicing and welding anti-deformation support and positioning device, including a welding base frame and a welding gun head. The welding base frame is provided with a rolling clamping assembly for rolling clamping of the steel component during the welding process. The rolling clamping assembly includes a base frame, a clamping seat and a rolling column. While rolling clamping the side of the steel component, the rolling column conducts and dissipates the heat generated by welding the steel component. The rolling column moves horizontally synchronously with the welding gun head to realize rolling support while welding. The clamping seat is equipped with a transverse centering component, which is used to adjust the rolling columns to fit against both sides of the steel component. The transverse centering component includes a bidirectional motor and a battery pack. The transverse centering component drives the rolling columns at both ends of the top of the clamping seat to move synchronously relative to each other. The welding base frame is fixedly installed with flipping positioning components at both ends for pressing and positioning the two ends of the steel component. The flipping positioning components include flipping side frame, pressing seat and flipping plate. The pressing seat moves horizontally down from the top of the steel component to press and position the top of the steel component. The top of the clamping seat is also equipped with a blower cleaning component for blowing and cleaning the surface of the steel component, and the top of the welding base is also equipped with a transverse movement component for driving the welding gun head to move horizontally.

[0006] As a preferred embodiment of the present invention, the rolling clamping assembly further includes a rotary motor, a base frame is fixedly installed at the center of the welding base, and rotary gears are movably connected around the base frame via rotating shafts. A chain is connected between two rotary gears located in the length direction of the welding base, and a clamping seat is fixedly installed on the chain link between the two chains. The rotary motor is fixedly installed inside the welding base via a motor plate, and the rolling column is a copper column structure.

[0007] There are six rolling columns, symmetrically arranged on both sides of the steel component. Two rotating gears located in the width direction of the welded base frame are fixedly installed at both ends of the same connecting rod. The connecting rod is rotatably installed on the base frame through bearings, and the output end of the rotating motor is fixedly installed on the connecting rod. A guide block is fixedly installed on the chain link that fixes the clamping seat. Guide grooves that slide with the guide blocks are provided on both sides of the base frame.

[0008] As a preferred embodiment of the present invention, the transverse centering component further includes a limiting rod. A bidirectional motor is fixedly installed at the center of the clamping seat. A first screw is fixedly installed at both ends of the bidirectional motor. A movable block is threaded through the first screw. The movable blocks are symmetrically arranged at both ends inside the clamping seat. A limiting rod is fixedly installed inside the clamping seat. The two ends of the movable blocks are movably inserted through the limiting rod. A battery pack is fixedly installed on the side of the clamping seat away from the rolling column. The battery pack provides power to the bidirectional motor.

[0009] Movable rods are fixedly installed at the top of both ends of the movable block. The top of each movable rod extends through to the outer side of the top of the clamping seat. A movable plate is fixedly installed at the top of each movable block via the movable rod. Three limiting posts are fixedly installed at the top of each movable plate, and the rolling posts are movably sleeved on the outer periphery of the limiting posts. Movable grooves are opened at both ends of the top of the clamping seat. The size of the movable grooves matches the movable plates, and the movable plates movably pass through the movable grooves.

[0010] As a preferred embodiment of the present invention, the flipping positioning assembly further includes a drive rod and a support rotating rod. The top of the flipping side frame is movably connected to the drive rod, and a flipping plate is fixedly installed on the drive rod. A connecting plate is fixedly installed on the flipping plate at the end away from the drive rod. The flipping side frame is movably connected to the support rotating rod at the bottom of the drive rod. Arc-shaped motion plates are fixedly installed at both ends of the support rotating rod. A clamping seat is movably connected between the ends of the arc-shaped motion plates away from the support rotating rod. Triangular connecting plates are fixedly installed at both ends of the top of the clamping seat, and the triangular connecting plates are movably connected to the bottom of the connecting plate.

[0011] A first motor is fixedly installed on the inner top of the tilting side frame. A first bevel gear is fixedly installed on the output end of the first motor via a rotating shaft. A second bevel gear is fixedly installed on the middle end of the drive rod, and the second bevel gear meshes with the first bevel gear. A hydraulic telescopic cylinder is fixedly installed on the top of the welded base frame. The output end of the hydraulic telescopic cylinder is fixedly installed on the bottom of the tilting side frame. Several buffer springs are fixedly installed on the bottom of the clamping seat. An arc-shaped clamping plate is fixedly installed between the bottoms of the buffer springs. The arc-shaped clamping plate clamps and positions the two ends of the steel component. The hydraulic telescopic cylinder pushes the tilting side frame, causing the arc-shaped clamping plate to move towards the steel component.

[0012] As a preferred embodiment of the present invention, the air-blowing cleaning assembly includes a cleaning seat, a cleaning seat is fixedly installed on the top of the pressing seat, and a plurality of cleaning nozzles are fixedly installed on the cleaning seat. The cleaning nozzles blow air to clean impurities and dust on the surface of the steel component, and the cleaning seat is connected to a drying blower.

[0013] As a preferred embodiment of the present invention, the lateral movement assembly further includes a drive motor and a second screw. A limit guide rail is fixedly installed on the top of the welding base, and a limit guide block is slidably connected on the limit guide rail. A welding frame is fixedly installed between the tops of the limit guide blocks. A welding robotic arm is fixedly installed on the top of the welding frame. A welding gun head for welding steel components is connected to the welding robotic arm. A drive motor is fixedly installed on the top of the welding base, and a second screw is fixedly installed at the output end of the drive motor. An arc-shaped guide block is threaded through the second screw, and the arc-shaped guide block is fixedly installed at the bottom of the welding frame.

[0014] Compared with the prior art, the beneficial effects that this invention can achieve are: In this invention, a rolling clamping assembly achieves continuous heat dissipation and anti-deformation effects while supporting welding. A rotary motor outputs rotational motion and drives a connecting rod to rotate. The connecting rod drives two rotating gears in the width direction of the welding base to rotate synchronously. The rotating gears mesh with a chain, causing the two chains to circulate along the length direction of the welding base. The chain then drives the clamping seat and six copper rolling columns on the clamping seat to move horizontally along the splicing direction of the steel component. During the rolling clamping process on both sides of the steel component, the rolling columns continuously conduct and dissipate the heat generated in the welding area through the copper columns, reducing the temperature gradient near the weld and suppressing angular deformation and wave deformation. At the same time, the guide block and the guide groove slide together to constrain the linear movement of the clamping seat, ensuring uniform clamping force of the rolling columns, so that the steel component maintains dimensional stability under welding heat input and improves the splicing accuracy of the welding area.

[0015] In this invention, a transverse centering component enables the rolling column to adaptively center and clamp steel components of different widths. A bidirectional motor drives the first screws at both ends to rotate synchronously. Under the constraint of the limiting rod, the two movable blocks move synchronously relative to or away from each other along the axial direction of the first screw. The movable blocks drive the movable plate to translate within the movable groove via the movable rod. The limiting column on the movable plate drives the rolling column to move closer to or away from the sides of the steel component. This movement process allows the rolling column to automatically adjust its contact position according to the actual width of the steel component, forming a moderate clamping force. This avoids excessively loose clamping leading to support failure or excessively tight clamping causing excessive restraint stress, thus improving the adaptability of the device to steel components with different cross-sections and the welding centering accuracy, and providing a stable foundation for aligning the welding torch tip with the splicing weld.

[0016] In this invention, the rolling clamping assembly and the lateral centering assembly work together to achieve a synergistic optimization of the clamping force and movement trajectory of the rolling column. Before welding, the lateral centering assembly adjusts the rolling column to both sides of the steel component and applies symmetrical clamping force. The rolling clamping assembly then drives the clamping seat and the rolling column to move horizontally synchronously with the welding gun head along the weld direction. The linkage of the two components ensures that the rolling column maintains appropriate clamping pressure while always rolling and supporting and dissipating heat near both sides of the weld, avoiding the displacement of the steel component caused by fluctuations in clamping force during movement. This further improves the continuity and stability of the weld formation and reduces the possibility of welding defects.

[0017] In this invention, a flipping positioning assembly is used to reliably clamp both ends of a steel component and reduce restraint stress. A hydraulic telescopic cylinder pushes the flipping side frame to move horizontally, so that the arc-shaped clamping plate at the bottom of the clamping seat is positioned above the end of the steel component. A first motor drives a drive rod to rotate via a first bevel gear and a second bevel gear. The flipping plate on the drive rod pulls the clamping seat to swing down around the support rod through a connecting plate and a triangular connecting plate. After the arc-shaped clamping plate contacts the top of the steel component, it compresses the buffer spring for elastic clamping. This movement reliably fixes both ends of the steel component during welding, preventing the ends from warping or shifting. At the same time, the buffer spring absorbs part of the thermal expansion, avoiding excessive restraint that could cause welding cracks, thus improving the safety and stability of the welding process.

[0018] In this invention, a multi-angle, full-coverage cleaning effect is achieved in the welding area of ​​steel components through a blower cleaning assembly. The drying blower sends high-pressure airflow into the cleaning seat, which distributes the airflow to multiple cleaning nozzles. The cleaning nozzles spray high-speed drying gas onto the surface of the steel components. As the cleaning nozzles move horizontally and swing downward with the clamping seat, the spray angle changes continuously, cleaning the ends of the steel components and both sides of the weld from different heights and directions. This expands the cleaning coverage, reduces blind spots, lowers the possibility of welding defects such as porosity and inclusions, improves weld formation quality, and provides a clean base material surface for high-quality welding.

[0019] In this invention, the rotating positioning component and the blowing cleaning component work together to achieve a highly efficient operation that completes cleaning and positioning simultaneously. In the rotating positioning component, the clamping seat moves horizontally first and then swings down, causing the cleaning nozzle installed on the top of the clamping seat to change its spatial position and spray direction accordingly, forming a multi-angle airflow to sweep the surface of the steel component. At the same time, the arc-shaped clamping plate at the bottom of the clamping seat elastically clamps and positions the two ends of the steel component, so that the cleaning and positioning actions overlap in time, reducing independent cleaning stations, improving the continuity and efficiency of the prefabricated steel component splicing and welding operation, and ensuring the cleanliness of the welding area, thus comprehensively improving the automation level of the device and the welding quality.

[0020] In this invention, the coordinated operation of the rolling clamping assembly, the lateral centering assembly, the flipping positioning assembly, and the air-blowing cleaning assembly achieves comprehensive constraint, heat dissipation, and cleaning effects on the welding area of ​​the steel component. In the rolling clamping assembly, a rotary motor drives a connecting rod and a rotating gear to drive a chain in cyclical motion, causing the clamping seat and six copper rolling columns to move horizontally synchronously with the welding torch along the weld direction, rolling and clamping the steel component on both sides and continuously conducting heat dissipation. In the lateral centering assembly, a bidirectional motor drives two first screws to rotate. Under the constraint of the limiting rod, the movable block drives the limiting column and rolling columns to move synchronously relative to each other via the movable rod and movable plate, allowing the rolling columns to automatically adjust their clamping position according to the width of the steel component and apply symmetrical clamping force. In the flipping positioning assembly, a hydraulic telescopic cylinder pushes… The rotating side frame moves horizontally, and the first motor drives the drive rod to rotate through the first and second bevel gears. The rotating plate drives the clamping seat to swing and descend around the support rod through the connecting plate and the triangular connecting plate. The arc-shaped clamping plate compresses the buffer spring and then elastically clamps the two ends of the steel component. The drying blower in the air blowing cleaning assembly distributes high-pressure airflow to multiple cleaning nozzles through the cleaning seat. The cleaning nozzles spray airflow onto the surface of the steel component from different angles as the clamping seat moves horizontally and swings and descends. The four components work together to ensure that the steel component simultaneously obtains rolling support and heat dissipation on both sides of the weld, reliable clamping at the ends, and multi-angle cleaning of the surface during the welding process. This effectively suppresses welding thermal deformation, reduces porosity and inclusion defects, and improves the splicing accuracy and weld formation quality of precast steel components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the welding base frame of the present invention; Figure 3 This is a schematic diagram of the arc-shaped guide block of the present invention; Figure 4 This is a schematic diagram of the base frame of the present invention; Figure 5 This is a schematic diagram of the chain structure of the present invention; Figure 6 This is a schematic diagram of the structure of the clamping base of the present invention; Figure 7 This is a schematic diagram of the structure of the flip-up side frame of the present invention; Figure 8 This is a schematic diagram of the structure of the clamping seat of the present invention; Figure 9 This is a schematic diagram of the structure of the drive rod of the present invention.

[0022] The components include: 10. Welding base frame; 11. Drive motor; 12. Limiting guide rail; 13. Limiting guide block; 14. Welding frame; 15. Welding robotic arm; 16. Welding gun head; 17. Second screw; 18. Arc-shaped guide block; 19. Hydraulic telescopic cylinder; 20. Base frame; 21. Rotary gear; 22. Chain; 23. Connecting rotating rod; 24. Rotary motor; 25. Guide slide; 26. Guide block; 30. Clamping seat; 31. Bidirectional motor; 32. First screw; 33. Movable block; 3 4. Limiting rod; 35. Movable rod; 36. Movable plate; 37. Limiting post; 38. Movable groove; 39. Rolling column; 40. Battery pack; 50. Tilting side frame; 51. First motor; 52. First bevel gear; 53. Drive rod; 54. Second bevel gear; 55. Tilting plate; 56. Connecting plate; 57. Support rotating rod; 58. Arc-shaped moving plate; 59. Triangular connecting plate; 60. Pressing seat; 61. Buffer spring; 62. Arc-shaped pressing plate; 63. Cleaning seat; 64. Cleaning nozzle. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0024] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a precast steel component splicing and welding anti-deformation support and positioning device includes a welding base frame 10 and a welding gun head 16. The welding base frame 10 is equipped with a rolling clamping assembly for rolling clamping of the steel component during the welding process. The rolling clamping assembly includes a base frame 20, a clamping seat 30, and a rolling column 39. While rolling and clamping the side of the steel component, the rolling column 39 conducts heat dissipation from the welding of the steel component. The rolling column 39 moves horizontally synchronously with the welding gun head 16 to achieve simultaneous rolling support and welding. The rolling clamping assembly also includes a rotary motor 24. The base frame 20 is fixedly installed at the center of the welding base frame 10. Rotary gears 21 are movably connected around the base frame 20 through a rotating shaft. A chain 22 is connected between two rotating gears 21 located in the length direction of the welding base frame 10. A clamping seat 30 is fixedly installed on the chain link between the two chains 22. The rotary motor 24 is fixedly installed inside the welding base frame 10 through a motor plate. The rolling column 39 is a copper column structure.

[0025] There are six rolling columns 39, symmetrically arranged on both sides of the steel component. Two rotating gears 21 located in the width direction of the welded base frame 10 are fixedly installed at both ends of the same connecting rod 23. The connecting rod 23 is rotatably installed on the base frame 20 through bearings, and the output end of the rotating motor 24 is fixedly installed on the connecting rod 23. A guide block 26 is fixedly installed on the chain link that fixes the clamping seat 30. The base frame 20 has guide grooves 25 on both sides that slide in cooperation with the guide block 26.

[0026] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In the rolling clamping assembly, a rotary motor 24 outputs rotational motion. The output end of the rotary motor 24 is fixedly mounted on the connecting rod 23, driving the connecting rod 23 to rotate relative to the base frame 20 via bearings. Two rotating gears 21 located in the width direction of the welding base frame 10 are fixedly mounted at both ends of the connecting rod 23, so the two rotating gears 21 rotate synchronously with the connecting rod 23. Each rotating gear 21 is meshed with the corresponding chain 22, and the chain 22 rotates cyclically along the length direction of the welding base frame 10 under the drive of the rotating gear 21. A clamping seat 30 is fixedly mounted on the link between the two chains 22. The clamping seat 30 moves horizontally with the cyclical movement of the chain 22, thereby driving the clamping seat 30 and the rolling column 39 mounted on the clamping seat 30 to move stably forward along the splicing direction of the steel component.

[0027] Meanwhile, a guide block 26 is also fixedly installed on the chain link that holds the clamping seat 30. The guide block 26 slides in conjunction with the guide grooves 25 on both sides of the base frame 20. The guide block 26 slides in the guide grooves 25 to constrain the movement path of the clamping seat 30, so that the clamping seat 30 remains stable and does not deviate during movement, avoiding the shaking caused by the chain 22 transmission from affecting the clamping accuracy of the rolling column 39 on the steel component. Three limiting posts 37 are respectively set at the top two ends of the clamping seat 30. Each limiting post 37 is movably fitted with a rolling column 39 on its outer periphery. The rolling column 39 is a copper column structure, and the six rolling columns 39 are symmetrically arranged on both sides of the steel component. When the clamping seat 30 moves horizontally, the rolling column 39 contacts the side of the steel component and rolls, which not only rolls and clamps the side of the steel component, but also conducts and dissipates the heat generated by the steel component during welding through the copper rolling column 39, reducing the temperature gradient in the area near the weld and reducing the tendency of welding thermal deformation.

[0028] When the rolling clamping assembly is in operation, the rotary motor 24 drives the chain 22 to move through the connecting rod 23 and the rotating gear 21. The chain 22 then drives the clamping seat 30 and the rolling column 39 to maintain the same horizontal moving speed as the welding gun head 16, realizing simultaneous rolling support and welding. Since the rolling column 39 always provides rolling clamping and heat dissipation for the steel component near the welding gun head 16, the steel component is less prone to angular deformation and wave deformation under the action of welding heat input, and the dimensional stability and splicing accuracy of the welding area are effectively improved. At the same time, the cooperation between the guide block 26 and the guide groove 25 further enhances the smoothness of the clamping seat 30, keeps the clamping force between the rolling column 39 and the side of the steel component uniform, and is conducive to the continuity and stability of the weld formation. When the clamping seat 30 rotates into the welding base 10 along with the chain 22, the cooling equipment on the welding base 10 blows air to cool the rotating column 39, so that the copper rotating column 39 releases the heat it has absorbed during the period of separation from the steel component, and returns to a lower temperature before moving with the chain 22 into the next welding area. This maintains the heat dissipation capacity of the rotating column 39 during the continuous welding process and further enhances the effect of suppressing welding thermal deformation.

[0029] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The clamping seat 30 has a transverse centering component inside, which is used to adjust the rolling column 39 to fit against both sides of the steel component. The transverse centering component includes a bidirectional motor 31 and a battery pack 40. The transverse centering component drives the rolling column 39 at both ends of the top of the clamping seat 30 to move synchronously relative to each other. The transverse centering component also includes a limiting rod 34. The bidirectional motor 31 is fixedly installed at the center inside the clamping seat 30. The two ends of the bidirectional motor 31 are fixedly installed with a first screw 32. The first screw 32 is threaded through and connected with a movable block 33. The movable blocks 33 are symmetrically arranged at both ends inside the clamping seat 30. The limiting rod 34 is fixedly installed inside the clamping seat 30. The two ends of the movable blocks 33 move through the limiting rod 34. The battery pack 40 is fixedly installed on the side of the clamping seat 30 away from the rolling column 39. The battery pack 40 provides power to the bidirectional motor 31.

[0030] Movable rods 35 are fixedly installed at the top of both ends of the movable block 33. The top of the movable rods 35 extends through to the outer side of the top of the clamping seat 30. A movable plate 36 is fixedly installed at the top of each movable block 33 through the movable rods 35. Three limiting posts 37 are fixedly installed at the top of each movable plate 36, and the rolling posts 39 are movably sleeved on the outer periphery of the limiting posts 37. Movable grooves 38 are opened at both ends of the top of the clamping seat 30. The size of the movable grooves 38 matches the movable plate 36, and the movable plate 36 is movably inserted through the movable grooves 38.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 When the lateral centering component is working, the battery pack 40 is fixedly installed on the side of the clamping seat 30 away from the rolling column 39 to provide power to the bidirectional motor 31. Two first screws 32 are fixedly installed at both ends of the bidirectional motor 31, located at the output ends on both sides of the motor. Each first screw 32 is threadedly connected to a movable block 33. The two movable blocks 33 are symmetrically arranged at both ends inside the clamping seat 30. A limit rod 34 is fixedly installed inside the clamping seat 30. The two ends of the movable blocks 33 are movably inserted through the limit rod 34. The limit rod 34 guides and constrains the movement direction of the movable blocks 33, ensuring that the movable blocks 33 can only move linearly along the axial direction of the limit rod 34 and cannot rotate with the first screws 32. When the bidirectional motor 31 starts, the two first screws 32 rotate synchronously, and the movable blocks 33 slide along the limit rod 34 under the action of the threaded engagement, thereby achieving synchronous relative or opposite movement of the two movable blocks 33, providing symmetrical spacing adjustment for the rolling column 39.

[0032] During the movement of the movable block 33, the movable rods 35 fixedly installed at both ends of the top of the movable block 33 move synchronously. The top of the movable rods 35 extends through to the outer side of the top of the clamping seat 30 and drives the movable plate 36 to move within the movable slots 38 opened at both ends of the top of the clamping seat 30. The size of the movable plate 36 matches the size of the movable slots 38, so that the movable plate 36 can slide smoothly within the movable slots 38 without deviation. Three limiting posts 37 are fixedly installed on the top of each movable plate 36, and the rolling posts 39 are movably sleeved on the outer periphery of the limiting posts 37. Therefore, when the movable plate 36 moves, the limiting posts 37 drive the rolling posts 39 to move closer to or away from the two sides of the steel component synchronously. In this way, the transverse centering component realizes the synchronous relative movement of the rolling posts 39 at both ends of the top of the clamping seat 30 through the sequential transmission of the bidirectional motor 31, the first screw 32, the movable block 33, the movable rod 35, the movable plate 36, and the limiting posts 37, so that the rolling posts 39 can automatically adjust their fitting position according to the actual width of the steel component.

[0033] By adjusting the lateral centering component, an appropriate clamping force can be formed between the rolling column 39 and the side of the steel component. This avoids the rolling column 39 losing its supporting and positioning function due to excessively loose clamping, and also avoids excessive restraint stress due to excessively tight clamping. This component can adapt to prefabricated steel components with different cross-sectional widths, improving the versatility and adaptability of the device. At the same time, the synchronous relative movement of the rolling columns 39 on both sides ensures the symmetry of the clamping force, keeping the steel component in a centered state during welding. This is beneficial for the welding torch head 16 to align with the splice weld, reducing welding defects caused by misalignment, and further improving the dimensional accuracy and weld formation quality of the steel component splice welding.

[0034] See Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 The welding base frame 10 has flip positioning components fixedly installed at both ends for pressing and positioning the two ends of the steel component. The flip positioning components include a flip side frame 50, a pressing seat 60, and a flip plate 55. The pressing seat 60 moves horizontally down from the top of the steel component to press and position the top of the steel component. The flip positioning components also include a drive rod 53 and a support rotating rod 57. The top of the flip side frame 50 is movably connected to the drive rod 53. The flip plate 55 is fixedly installed on the drive rod 53. The flip plate 55 has a connecting plate 56 fixedly installed at the end away from the drive rod 53. The flip side frame 50 has a support rotating rod 57 movably connected at the bottom of the drive rod 53. The two ends of the support rotating rod 57 are fixedly installed with arc-shaped motion plates 58. The pressing seat 60 is movably connected between the ends of the arc-shaped motion plates 58 away from the support rotating rod 57. The two ends of the top of the pressing seat 60 are fixedly installed with triangular connecting plates 59, and the triangular connecting plates 59 are movably connected to the bottom of the connecting plate 56.

[0035] A first motor 51 is fixedly installed on the inner top of the tilting side frame 50. A first bevel gear 52 is fixedly installed on the output end of the first motor 51 through a rotating shaft. A second bevel gear 54 is fixedly installed on the middle end of the drive rod 53, and the second bevel gear 54 and the first bevel gear 52 are meshed. A hydraulic telescopic cylinder 19 is fixedly installed on the top of the welded base frame 10. The output end of the hydraulic telescopic cylinder 19 is fixedly installed on the bottom of the tilting side frame 50. Several buffer springs 61 are fixedly installed on the bottom of the clamping seat 60. An arc-shaped clamping plate 62 is fixedly installed between the bottoms of the buffer springs 61. The arc-shaped clamping plate 62 clamps and positions the two ends of the steel component. The hydraulic telescopic cylinder 19 pushes the tilting side frame 50 to move the arc-shaped clamping plate 62 toward the steel component.

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 When the flipping positioning assembly is working, the hydraulic telescopic cylinder 19 first performs a linear telescopic movement. The output end of the hydraulic telescopic cylinder 19 is fixedly installed at the bottom of the flipping side frame 50, pushing the flipping side frame 50 to move horizontally as a whole, so that the flipping side frame 50 moves from the initial position toward the end of the steel component until the arc-shaped clamping plate 62 at the bottom of the clamping seat 60 is above the end of the steel component. At this time, the flipping positioning assembly completes the initial horizontal alignment, so that the clamping seat 60 and the arc-shaped clamping plate 62 can be accurately aligned with the top of both ends of the steel component in subsequent actions, providing a correct positional basis for clamping and positioning. This horizontal pushing process avoids interference between the flipping side frame 50 and the side of the steel component, allowing the entire flipping positioning assembly to flexibly approach or move away from the steel component, improving the adaptability of the device to steel components of different lengths.

[0037] Subsequently, the first motor 51 starts and outputs rotational motion. A first bevel gear 52 is fixedly mounted on the output end of the first motor 51 via a rotating shaft. The first bevel gear 52 meshes with a second bevel gear 54 fixedly mounted on the middle end of the drive rod 53, thereby driving the drive rod 53 to rotate relative to the tilting side frame 50. A tilting plate 55 is fixedly mounted on the drive rod 53, and the tilting plate 55 rotates synchronously with the drive rod 53. A connecting plate 56 is fixedly mounted on the end of the tilting plate 55 away from the drive rod 53. A supporting rotating rod 57 is movably connected to the bottom of the tilting side frame 50 at the bottom of the drive rod 53. Arc-shaped moving plates 58 are fixedly mounted on both ends of the supporting rotating rod 57. A pressing seat 60 is movably connected between the ends of the arc-shaped moving plates 58 away from the supporting rotating rod 57. The top of the pressing seat 60... Triangular connecting plates 59 are fixedly installed at both ends, and the triangular connecting plates 59 are movably connected to the bottom of the connecting plate 56. When the drive rod 53 rotates, the flipping plate 55 rotates, and the flipping plate 55 pulls the triangular connecting plate 59 through the connecting plate 56, so that the pressing seat 60 swings around the support rotating rod 57 under the constraint of the arc-shaped moving plate 58. The arc-shaped pressing plate 62 at the bottom of the pressing seat 60 gradually descends and approaches the top of the steel component. Several buffer springs 61 are fixedly installed at the bottom of the pressing seat 60, and the arc-shaped pressing plate 62 is fixedly installed between the bottom of the buffer springs 61. When the arc-shaped pressing plate 62 contacts the top of the steel component, the buffer springs 61 are compressed, which plays a buffering role, so that the arc-shaped pressing plate 62 is elastically pressed against the top of both ends of the steel component, thus completing the pressing and positioning of both ends of the steel component.

[0038] By using the horizontal pushing and swinging clamping actions of the flipping positioning component, both ends of the steel component can be reliably clamped and fixed before and during welding, avoiding end warping, misalignment, or overall displacement caused by welding heat input. The buffer spring 61 absorbs part of the thermal expansion during the clamping process, so that the steel component is constrained but does not generate additional stress due to excessive restraint, which helps to reduce the risk of welding cracks. At the same time, the first motor 51 and the hydraulic telescopic cylinder 19 in the component control the horizontal movement and swinging clamping respectively. The actions are independent of each other, which makes it easy to make flexible adjustments according to the actual size of the steel component, improving positioning accuracy and ease of operation.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 The top of the clamping seat 60 is also equipped with a blowing cleaning component for blowing clean the surface of the steel component. The blowing cleaning component includes a cleaning seat 63. The cleaning seat 63 is fixedly installed on the top of the clamping seat 60. Several cleaning nozzles 64 are fixedly installed on the cleaning seat 63. The cleaning nozzles 64 blow clean the impurities and dust on the surface of the steel component. The cleaning seat 63 is connected to a drying blower.

[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 When the air-blowing cleaning assembly is in operation, the drying blower starts and generates a high-pressure drying airflow. The airflow is delivered through an external pipe to the cleaning seat 63, which is fixedly installed on the top of the clamping seat 60. The airflow is distributed inside the cleaning seat 63 so that the high-pressure airflow enters each cleaning nozzle 64 evenly. The cleaning nozzles 64 are fixedly installed on the cleaning seat 63, and multiple cleaning nozzles 64 are arranged in a set direction to spray the high-pressure drying airflow onto the surface of the steel component at a certain speed. Impurities, dust, and residual moisture before welding attached to the surface of the steel component are blown away by the airflow, thereby keeping the surface of the steel component clean and reducing contaminants near the welding area.

[0041] Since both the cleaning seat 63 and the cleaning nozzle 64 are fixedly installed on the top of the clamping seat 60, and the clamping seat 60 moves horizontally first and then swings down around the support rod 57 during the operation of the flip positioning assembly, the cleaning nozzle 64 will change its spatial position and spray angle along with the clamping seat 60. During the horizontal movement of the clamping seat 60, the cleaning nozzle 64 blows on the area above the end of the steel component. When the clamping seat 60 swings down and approaches the top of the steel component, the cleaning nozzle 64 blows air onto the surface of the steel component from different heights and tilt directions. This follow-up blowing method can clean the end of the steel component and the areas on both sides of the weld from multiple angles, expand the cleaning coverage, and reduce the cleaning blind spots caused by fixed-angle blowing.

[0042] By continuously working before and during welding, the air-blowing cleaning component removes dust and impurities from the surface of steel components in a timely manner, reducing the possibility of defects such as porosity and inclusions during welding and improving the quality of weld formation. The air-blowing cleaning component is integrated on the top of the clamping seat 60, without occupying an additional independent cleaning station, simplifying the operation process and allowing the cleaning preparation before welding to be carried out simultaneously with the positioning and clamping action, thereby improving the continuity and efficiency of prefabricated steel component splicing and welding operations.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9The top of the welding base 10 is also provided with a transverse moving assembly that drives the welding gun head 16 to move horizontally. The transverse moving assembly also includes a drive motor 11 and a second screw 17. A limit guide rail 12 is fixedly installed on the top of the welding base 10. A limit guide block 13 is slidably connected on the limit guide rail 12. A welding frame 14 is fixedly installed between the tops of the limit guide blocks 13. A welding robot arm 15 is fixedly installed on the top of the welding frame 14. A welding gun head 16 for welding steel components is connected to the welding robot arm 15. A drive motor 11 is fixedly installed on the top of the welding base 10. A second screw 17 is fixedly installed at the output end of the drive motor 11. An arc-shaped guide block 18 is threaded through the second screw 17 and is fixedly installed at the bottom of the welding frame 14.

[0044] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9 When the lateral movement component is working, the drive motor 11 starts and outputs rotational motion. A second screw 17 is fixedly installed at the output end of the drive motor 11, and the second screw 17 rotates accordingly. An arc-shaped guide block 18 is threaded through the second screw 17 and is fixedly installed at the bottom of the welding frame 14. When the second screw 17 rotates, the arc-shaped guide block 18 and the second screw 17 convert the rotational motion into linear motion through the threaded engagement. The arc-shaped guide block 18 moves horizontally along the axis of the second screw 17, thereby driving the welding frame 14 to move horizontally along the top of the welding base frame 10. By controlling the speed and direction of the drive motor 11, the moving speed and direction of the arc-shaped guide block 18 can be adjusted, so that the welding frame 14 can move forward or backward along the welding path according to the welding process requirements.

[0045] During the movement of the welding frame 14, a limiting guide rail 12 is fixedly installed on the top of the welding base frame 10, and a limiting guide block 13 is slidably connected on the limiting guide rail 12. The welding frame 14 is fixedly installed between the tops of the limiting guide blocks 13. The sliding cooperation between the limiting guide blocks 13 and the limiting guide rail 12 guides and constrains the movement direction of the welding frame 14, so that the welding frame 14 can only move stably along the straight line of the limiting guide rail 12, avoiding the lateral force generated by the rotation of the second screw 17, which would cause the welding frame 14 to deviate or shake. A welding robotic arm 15 is fixedly installed on the top of the welding frame 14, and a welding gun head 16 for welding steel components is connected to the welding robotic arm 15. When the welding frame 14 moves, the welding robotic arm 15 and the welding gun head 16 move horizontally synchronously with the welding frame 14. The welding gun head 16 always stays above the splice of the steel component and performs continuous welding along the weld direction, realizing the precise positioning and stable movement of the welding gun head 16 in the horizontal direction.

[0046] Through the coordinated movement of the drive motor 11, the second screw 17, the arc-shaped guide block 18, the welding frame 14, the limiting guide block 13, and the limiting guide rail 12 in the lateral movement assembly, the welding gun head 16 can move smoothly at a preset speed and move horizontally synchronously with the rolling column 39 in the rolling clamp assembly, realizing the operation requirement of welding while rolling support. This assembly enables the welding gun head 16 to maintain a uniform linear motion during the welding process, reducing the uneven weld width and penetration caused by fluctuations in movement speed, which is beneficial to improving the continuity and uniformity of weld formation. At the same time, the guiding effect of the limiting guide rail 12 and the limiting guide block 13 enhances the stability of the welding frame 14 and improves the centering accuracy of the welding gun head 16, further ensuring the dimensional accuracy and welding quality of the precast steel component splicing welding.

[0047] Working principle: Before welding begins, the steel component is placed on the welding base 10 and locked in a fixed position by the robotic arm, ensuring that the splice of the steel component is located on the moving path of the welding gun head 16. Subsequently, the drive motor 11 in the lateral movement assembly starts, and the drive motor 11 outputs rotational motion, driving the second screw 17 to rotate. An arc-shaped guide block 18 is threaded through the second screw 17 and is fixedly installed at the bottom of the welding frame 14. When the second screw 17 rotates, the arc-shaped guide block 18 moves linearly along the axial direction of the second screw 17, thereby driving the welding gun head 16 to rotate. The welding frame 14 moves; a limiting guide rail 12 is fixedly installed on the top of the welding base frame 10, and a limiting guide block 13 is slidably connected on the limiting guide rail 12. The welding frame 14 is fixedly installed between the tops of the limiting guide blocks 13. Therefore, the welding frame 14 moves stably along a straight line under the guidance of the limiting guide blocks 13 and the limiting guide rail 12; a welding robotic arm 15 is fixedly installed on the top of the welding frame 14, and a welding gun head 16 is connected to the welding robotic arm 15; when the welding frame 14 moves, it drives the welding robotic arm 15 and the welding gun head 16 to move horizontally synchronously, so that the welding gun head 16 is accurately aligned with the splicing weld of the steel component.

[0048] At the start of welding, the welding torch 16 performs arc welding on the splice of the steel component; a large amount of heat is generated during the welding process, and the steel component expands due to heat, especially near the weld, where the temperature is the highest, which is prone to angular deformation, wave deformation and overall bending; in order to suppress this welding deformation, the rolling clamping assembly provides rolling clamping and heat dissipation near the welding area.

[0049] In the rolling clamping assembly, a rotary motor 24 outputs rotational motion. The output end of the rotary motor 24 is fixedly mounted on the connecting rod 23, driving the connecting rod 23 to rotate relative to the base frame 20 via bearings. Two rotating gears 21 are fixedly mounted at both ends of the connecting rod 23, located in the width direction of the welding base frame 10. Therefore, the two rotating gears 21 rotate synchronously with the connecting rod 23. Each rotating gear 21 meshes with a corresponding chain 22, and the chain 22 rotates cyclically along the length direction of the welding base frame 10 under the drive of the rotating gears 21. A clamping seat 30 is fixedly mounted on the link between the two chains 22, and the clamping seat 30 moves horizontally with the cyclic movement of the chain 22. At the same time, a guide block 26 is also fixedly mounted on the link where the clamping seat 30 is fixed, and the guide block 26 and the guide on both sides of the base frame 20 are connected. The guide block 26 slides within the guide groove 25, constraining the movement path of the clamping seat 30 to ensure its stability and prevent tilting during movement. Three limiting posts 37 are respectively installed at both ends of the top of the clamping seat 30, with a rolling post 39 movably fitted around the outer periphery of each limiting post 37. The rolling post 39 is a copper column structure. When the clamping seat 30 moves horizontally with the chain 22, the rolling post 39 contacts the side of the steel component and rolls, not only clamping the side of the steel component but also conducting and dissipating the heat generated during welding through the copper rolling post 39, preventing excessive local temperature and reducing welding thermal deformation. Because the rolling post 39 moves horizontally synchronously with the clamping seat 30, it achieves simultaneous rolling support and welding, always providing support and heat dissipation for the steel component near the welding torch head 16.

[0050] The lateral centering component is used to automatically adjust the contact distance between the rolling column 39 and the side of the steel component, ensuring that the rolling column 39 always clamps the steel component with appropriate pressure. A bidirectional motor 31 is fixedly installed at the center inside the clamping seat 30. The bidirectional motor 31 outputs rotational motion, driving the first screw 32 to rotate. Two movable blocks 33 are threadedly connected to the first screw 32 at both ends, and the movable blocks 33 are symmetrically arranged at both ends inside the clamping seat 30. A limit rod 34 is also fixedly installed inside the clamping seat 30. The two ends of the movable blocks 33 move through the limit rod 34, which guides and constrains the movement direction of the movable blocks 33, ensuring that the movable blocks 33 can only move linearly along the axial direction of the limit rod 34 and cannot rotate. When the bidirectional motor 31 drives the first screw 32 to rotate, because the threads at both ends rotate in opposite directions, the two movable blocks 33 are constrained by the limit rod 34. The moving blocks 33 move synchronously relative to each other or in opposite directions. Each movable block 33 has a movable rod 35 fixedly installed at both ends of its top. The top of the movable rod 35 extends through to the outer side of the top of the clamping seat 30. Each movable block 33 has a movable plate 36 fixedly installed at its top through the movable rod 35. When the movable block 33 moves, the movable rod 35 drives the movable plate 36 to move horizontally in the movable grooves 38 at both ends of the top of the clamping seat 30. The movable plate 36 then drives the three limiting posts 37 at its top and the rolling posts 39 sleeved on the outer periphery of the limiting posts 37 to move synchronously. This makes the rolling posts 39 on both sides move closer to or away from the sides of the steel component, so as to achieve the fitting adjustment and centering clamping of the rolling posts 39 with the sides of the steel component. In this way, the rolling posts 39 can adapt to steel components of different widths and maintain a suitable clamping force during the welding process, avoiding loss of support due to excessively loose clamping or excessive restraint stress due to excessively tight clamping.

[0051] During welding, the ends of steel components are prone to warping or shifting due to weld shrinkage. The flipping and positioning assembly is used to clamp and position the ends of the steel components, preventing displacement during the welding thermal cycle. A first motor 51 is fixedly mounted on the inner top of the flipping side frame 50. A first bevel gear 52 is fixedly mounted on the output end of the first motor 51 via a rotating shaft. The first bevel gear 52 meshes with a second bevel gear 54 fixedly mounted on the middle end of the drive rod 53. The first motor 51 outputs rotational motion, driving the first bevel gear 52 to rotate. The first bevel gear 52 drives the second bevel gear 54 to rotate, thereby driving the drive rod 53 to rotate relative to the flipping side frame 50. A flipping plate 55 is fixedly mounted on the drive rod 53. The flipping plate 55 rotates synchronously with the drive rod 53. The flipping plate 55 moves away from the drive rod 53. One end of the rotating side frame 50 is fixedly installed with a connecting plate 56; a support rotating rod 57 is movably connected to the bottom of the drive rod 53 at the flipping side frame 50. Arc-shaped motion plates 58 are fixedly installed at both ends of the support rotating rod 57. A pressing seat 60 is movably connected between the ends of the arc-shaped motion plates 58 away from the support rotating rod 57. Triangular connecting plates 59 are fixedly installed at both ends of the top of the pressing seat 60. The triangular connecting plates 59 are movably connected to the bottom of the connecting plate 56. When the drive rod 53 rotates, the flipping plate 55 rotates. The flipping plate 55 pulls the triangular connecting plates 59 through the connecting plate 56, so that the pressing seat 60 swings around the support rotating rod 57 under the constraint of the arc-shaped motion plates 58, thereby adjusting the spatial posture of the pressing seat 60 so that the arc-shaped pressing plate 62 at the bottom of the pressing seat 60 can be accurately aligned with the top of both ends of the steel component.

[0052] Before clamping, a hydraulic telescopic cylinder 19 is fixedly installed on the top of the welding base frame 10, and the output end of the hydraulic telescopic cylinder 19 is fixedly installed on the bottom of the tilting side frame 50; the hydraulic telescopic cylinder 19 performs linear telescopic movement, pushing the tilting side frame 50 to move horizontally as a whole, pushing the tilting side frame 50 horizontally from the outside to above both ends of the steel component, so that the arc-shaped clamping plate 62 at the bottom of the clamping seat 60 is located directly above the end of the steel component; then, the first motor 51 continues to drive the clamping seat 60 to swing downward around the support rod 57, and several buffers are fixedly installed at the bottom of the clamping seat 60. An arc-shaped clamping plate 62 is fixedly installed between the bottom of the impact spring 61 and the buffer spring 61. When the arc-shaped clamping plate 62 contacts the top of the steel component, the buffer spring 61 is compressed, which plays a buffering role, so that the arc-shaped clamping plate 62 is elastically pressed against the top of both ends of the steel component, completing the clamping and positioning of both ends of the steel component, and avoiding damage to the surface of the steel component caused by rigid impact. In this way, the two ends of the steel component are reliably clamped during the welding process, and the deformation of the weld area is effectively restrained. At the same time, the buffer spring 61 can also absorb some thermal expansion and prevent cracks from being generated due to excessive restraint.

[0053] A blower cleaning assembly is installed on top of the clamping seat 60 to clean the surface of the steel component before or during welding, thereby improving welding quality. A cleaning seat 63 is fixedly installed on top of the clamping seat 60, and several cleaning nozzles 64 are fixedly mounted on the cleaning seat 63. A drying blower is connected to the cleaning seat 63. The drying blower generates a high-pressure drying airflow, which is distributed to each cleaning nozzle 64 via the cleaning seat 63. The cleaning nozzles 64 spray the high-pressure airflow onto the surface of the steel component, blowing away impurities, dust, and moisture, keeping the welding area clean, and preventing impurities from entering the weld and causing defects such as porosity or inclusions. Since the clamping seat 60 can swing and descend around the support rod 57 during the flipping and positioning process, the cleaning nozzles 64 change their spray angle with the clamping seat 60, blowing air onto the surface of the steel component from different directions before and during welding. This achieves full coverage cleaning of dust and impurities on the steel component surface, avoiding cleaning dead zones and further ensuring weld formation quality.

[0054] During welding, the lateral movement component continuously drives the welding torch head 16 to move horizontally along the welding direction, and keeps the welding torch head 16 and the rolling column 39 moving synchronously. The drive motor 11 is fixedly installed on the top of the welding base 10. The drive motor 11 outputs rotational motion, driving the second screw 17 to rotate. When the second screw 17 rotates, the arc-shaped guide block 18 moves linearly along the axis of the second screw 17, thereby driving the welding frame 14 to move. Under the guidance of the limiting guide block 13 and the limiting guide rail 12, the welding frame 14 moves stably in a straight line, and the welding frame 14 drives the welding robot arm 15 and the welding torch head 16 to move synchronously. Translational movement; by controlling the speed and direction of the drive motor 11, the moving speed and direction of the welding gun head 16 can be precisely controlled, so that the welding gun head 16, the clamping seat 30 in the rolling clamp assembly, and the rolling column 39 maintain the same horizontal moving speed; in this way, while the welding gun head 16 continuously welds the steel component splice seam, the rolling column 39 always provides rolling support and heat dissipation near both sides of the weld seam, realizing synchronous operation of rolling support and welding at the same time, ensuring the continuity and stability of the welding process, effectively suppressing the thermal deformation of the steel component during the welding process, and improving the splicing accuracy and welding quality of the precast steel component.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Those skilled in the art can make various changes within their knowledge without departing from the spirit of the present invention.

Claims

1. A precast steel component splicing and welding anti-deformation support and positioning device, comprising a welding base frame (10) and a welding torch head (16), characterized in that, The welding base frame (10) is equipped with a rolling clamping assembly for rolling clamping of steel components during the welding process. The rolling clamping assembly includes a base frame (20), a clamping seat (30), and a rolling column (39). While rolling clamping the side of the steel component, the rolling column (39) conducts heat dissipation from the welding of the steel component. The rolling column (39) moves horizontally synchronously with the welding gun head (16) to achieve simultaneous rolling support and welding. The clamping seat (30) is provided with a transverse centering component for adjusting the rolling column (39) to fit against both sides of the steel component. The transverse centering component includes a bidirectional motor (31) and a battery pack (40). The transverse centering component drives the rolling columns (39) at both ends of the top of the clamping seat (30) to move synchronously relative to each other. The welding base frame (10) is fixedly installed with flip positioning components at both ends for pressing and positioning the two ends of the steel component. The flip positioning components include a flip side frame (50), a pressing seat (60) and a flip plate (55). The pressing seat (60) moves down from the top of the steel component to press and position the top of the steel component. The top of the clamping seat (60) is also provided with a blowing cleaning component for blowing clean the surface of the steel component, and the top of the welding base (10) is also provided with a transverse moving component for driving the welding gun head (16) to move horizontally.

2. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 1, characterized in that, The rolling clamping assembly also includes a rotary motor (24), a base frame (20) is fixedly installed at the center of the welding base frame (10), and rotary gears (21) are movably connected around the base frame (20) via a rotating shaft. A chain (22) is connected between the two rotary gears (21) located in the length direction of the welding base frame (10). A clamping seat (30) is fixedly installed on the chain link between the two chains (22). The rotary motor (24) is fixedly installed inside the welding base frame (10) via a motor plate. The rolling column (39) is a copper column structure.

3. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 2, characterized in that, There are six rolling columns (39), symmetrically arranged on both sides of the steel component. Two rotating gears (21) located in the width direction of the welded base frame (10) are fixedly installed at both ends of the same connecting rod (23). The connecting rod (23) is rotatably installed on the base frame (20) through bearings. The output end of the rotary motor (24) is fixedly installed on the connecting rod (23). A guide block (26) is fixedly installed on the chain link that fixes the clamping seat (30). The base frame (20) has guide grooves (25) on both sides that slide with the guide block (26).

4. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 1, characterized in that, The transverse centering component also includes a limiting rod (34), a bidirectional motor (31) is fixedly installed at the center of the clamping seat (30), and a first screw (32) is fixedly installed at both ends of the bidirectional motor (31). A movable block (33) is threaded through the first screw (32), and the movable blocks (33) are symmetrically arranged at both ends inside the clamping seat (30). A limit rod (34) is fixedly installed inside the clamping seat (30). The two ends of the movable block (33) pass through the limit rod (34). A battery pack (40) is fixedly installed on the side of the clamping seat (30) away from the rolling column (39). The battery pack (40) provides power to the bidirectional motor (31).

5. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 4, characterized in that, Movable rods (35) are fixedly installed at the top of both ends of the movable block (33). The top of the movable rods (35) extends through to the outer side of the top of the clamping seat (30). A movable plate (36) is fixedly installed at the top of each movable block (33) through the movable rods (35). Three limiting posts (37) are fixedly installed at the top of each movable plate (36), and the rolling posts (39) are movably sleeved on the outer periphery of the limiting posts (37). The top two ends of the clamping seat (30) are provided with movable slots (38), the size of the movable slots (38) matches the movable plate (36), and the movable plate (36) is movably inserted through the movable slots (38).

6. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 1, characterized in that, The flipping positioning assembly also includes a drive rod (53) and a support rotating rod (57). The top of the flipping side frame (50) is movably connected to the drive rod (53). A flipping plate (55) is fixedly installed on the drive rod (53). A connecting plate (56) is fixedly installed at the end of the flipping plate (55) away from the drive rod (53). The flipping side frame (50) is movably connected to the support rotating rod (57) at the bottom of the drive rod (53). Arc-shaped motion plates (58) are fixedly installed at both ends of the support rotating rod (57). A clamping seat (60) is movably connected between the ends of the arc-shaped motion plates (58) away from the support rotating rod (57). Triangular connecting plates (59) are fixedly installed at both ends of the top of the clamping seat (60), and the triangular connecting plates (59) are movably connected to the bottom of the connecting plate (56).

7. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 6, characterized in that, The inner top of the flipping side frame (50) is fixedly installed with a first motor (51), and the output end of the first motor (51) is fixedly installed with a first bevel gear (52) through a rotating shaft. The middle end of the drive rod (53) is fixedly installed with a second bevel gear (54), and the second bevel gear (54) and the first bevel gear (52) are engaged in transmission. A hydraulic telescopic cylinder (19) is fixedly installed on the top of the welding base frame (10). The output end of the hydraulic telescopic cylinder (19) is fixedly installed on the bottom of the flip side frame (50). Several buffer springs (61) are fixedly installed on the bottom of the clamping seat (60). An arc-shaped clamping plate (62) is fixedly installed between the bottoms of the buffer springs (61). The arc-shaped clamping plate (62) clamps and positions the two ends of the steel component. The hydraulic telescopic cylinder (19) pushes the flip side frame (50) to make the arc-shaped clamping plate (62) move towards the steel component.

8. The precast steel component splicing and welding anti-deformation support and positioning device according to claim 1, characterized in that, The blowing cleaning assembly includes a cleaning seat (63), which is fixedly installed on the top of the pressing seat (60). Several cleaning nozzles (64) are fixedly installed on the cleaning seat (63). The cleaning nozzles (64) blow and clean the impurities and dust on the surface of the steel component. The cleaning seat (63) is connected to a drying blower.

9. A precast steel component splicing and welding anti-deformation support and positioning device according to claim 1, characterized in that, The lateral movement assembly also includes a drive motor (11) and a second screw (17). A limit guide rail (12) is fixedly installed on the top of the welding base (10). A limit guide block (13) is slidably connected on the limit guide rail (12). A welding frame (14) is fixedly installed between the tops of the limit guide blocks (13). A welding robot arm (15) is fixedly installed on the top of the welding frame (14). A welding gun head (16) for welding steel components is connected to the welding robot arm (15). A drive motor (11) is fixedly installed on the top of the welding base (10). A second screw (17) is fixedly installed at the output end of the drive motor (11). An arc-shaped guide block (18) is threaded through the second screw (17), and the arc-shaped guide block (18) is fixedly installed at the bottom of the welding frame (14).

Images