Steel structure welding fixing device

Abstract

The invention belongs to the technical field of steel structure welding, and particularly relates to a steel structure welding fixing device which comprises two fixing bases. A plurality of fixing frames are fixedly connected to the ends of the two fixing bases. The inner walls of the multiple fixing frames are rotationally connected with gear rings. Two limiting plates are oppositely arranged and tightly attached to the upper and lower surfaces of H-shaped steel structures, the two H-shaped steel structures penetrate through a plurality of fixing frames to be fixedly spliced, the output end of a servo motor drives a long rod connected with a belt to rotate, and a gear and a gear ring are matched with each other to drive the fixed H-shaped steel structures to rotate; the H-shaped steel structure welding device is matched with welding equipment to conduct rotary welding at the splicing position of two H-shaped steel structures, the traditional mode that multiple times of fixed welding is conducted through a fixing device is replaced, the welding efficiency and the welding effect of the H-shaped steel structures are improved, multiple guide plates are used for guiding in the H-shaped steel structure pushing process, the pushing angle and position of the H-shaped steel structures are corrected in cooperation with H grooves, and the welding efficiency is improved. And the welding effect on the two H-shaped steel structures is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure welding, in particular to a steel structure welding fixing device. Background Art

[0002] Steel structure is a structure made of steel materials. Steel structure is one of the main building structures. Steel structure is mainly composed of components such as steel beams, steel trusses and steel columns. The characteristics of steel structure are reflected in high strength and strong resistance to deformation. It is usually used to build large-span and super-high buildings.

[0003] A patent application with publication number CN118371962A discloses a butt-fixed steel structure welding device, which includes a welding workbench and a welding arm. The welding head of the welding arm is located above the middle of the welding workbench. A support assembly is provided on the sliding surface of the welding workbench. This application clamps and fixes the steel parts during the sliding process of the support assembly, so that the position of the steel parts during the welding process is stabilized, reducing movement or deformation due to thermal deformation during the welding process.

[0004] The above-mentioned steel structure welding structure can improve the welding accuracy of the steel structure mainly by stably clamping and fixing during the welding process of the steel structure. However, during the welding process of the H-shaped steel structure, due to the special shape of the H-shaped steel structure, it is difficult to weld the bottom of the steel structure after the current fixing device fixes the H-shaped steel structure. It is necessary to weld some exposed areas first, and then continue to weld the remaining areas after flipping and fixing them again, which reduces the welding efficiency and easily affects the welding effect of the H-shaped steel structure.

[0005] To this end, the present invention provides a steel structure welding and fixing device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a steel structure welding fixing device described in the present invention comprises two fixed bases; a plurality of fixing frames are fixedly connected to the ends of the two fixed bases; the inner walls of the plurality of fixing frames are rotatably connected to a gear ring; a support frame is fixedly connected to the outer walls of the two fixed bases; a long rod is rotatably connected to the inner walls of the support frame; a plurality of gears are rotatably connected to the long rod near the gear ring, and the gears and the gear ring can mesh and rotate; the inner walls of the plurality of gear rings are provided with matching components, and the matching components are used to support and splice the steel structure; a transmission component is provided on the outside of the fixed base, and the transmission component is used to drive the long rod to rotate.

[0008] Preferably, the mating component comprises a connecting frame and a limiting plate; the two connecting frames are relatively fixed on the inner wall of the gear ring; the limiting plate is fixed on the connecting frame; and grooves are provided on the opposite surfaces of the two limiting plates.

[0009] Preferably, the transmission assembly includes a motor frame, a servo motor and a belt; the motor frame is fixed to the outer wall of a fixed base; the servo motor is fixed to the inner wall of the motor frame; and the belt is sleeved on the long rod and the output end of the servo motor.

[0010] Preferably, the outer walls of the plurality of limit plates are fixedly connected with guide plates; the guide plates are composed of a trapezoidal plate and two triangular plates, and when the steel member is placed on the guide plate, the two triangular plates are located on the surface of the trapezoidal plate for guidance.

[0011] Preferably, a plurality of connecting rods are fixedly connected to the outer wall of the limit plate; a test frame is fixedly connected to the outer wall of the connecting rod away from the limit plate; an H-groove is provided on the test frame, and the cross-sectional shape of the H-groove is the same as the cross-sectional shape of the steel structure.

[0012] Preferably, a scraper is fixedly connected to the outer wall of the test frame; the scraper is located at the edge of the H-groove, and the scraper is close to one side of the connecting rod.

[0013] Preferably, a storage box is fixedly connected to the top outer wall of the plurality of fixing frames; a plug is inserted at the top of the storage box; a storage cavity is opened inside the storage box; a lower leakage hole is opened at the bottom end of the storage cavity; a sealing component is arranged inside the storage box, and the sealing component is used to control the sealing of the lower leakage hole.

[0014] Preferably, the sealing assembly includes a rotating wheel, a sealing plate and a trigger plate; the rotating wheel is rotatably connected to the inside of the storage box through a torsion spring; the sealing plate is fixed to the outer wall of the rotating wheel and is close to the lower leakage hole; the trigger plate is fixed to the outer wall of the rotating wheel and is away from the sealing plate.

[0015] Preferably, a guide plate is fixedly connected to the inner wall of the storage box near the lower leakage hole; a plurality of No. 1 brushes and No. 2 brushes are respectively fixedly connected to the outer wall of the bottom end of the guide plate, and the No. 1 brushes and No. 2 brushes can be connected to the lower leakage hole through the guide plate.

[0016] Preferably, the No. 1 brush can be rubbed against the lower surface of the teeth of the gear ring; and the No. 2 brush can be rubbed against the upper surface of the teeth of the gear ring.

[0017] The beneficial effects of the present invention are as follows: 1. A steel structure welding and fixing device described in the present invention has two limit plates arranged relatively and tightly fitting the upper and lower surfaces of the H-shaped steel structure, and two H-shaped steel structures are respectively passed through a plurality of fixing frames for fixed splicing, and the output end of the servo motor is used to drive the long rod connected by the belt to rotate, and the gear and the gear ring cooperate with each other to drive the fixed H-shaped steel structure to rotate, and the welding equipment is used to rotate and weld at the splicing of the two H-shaped steel structures, which replaces the traditional fixing device for multiple fixed welding, improves the efficiency and welding effect of the H-shaped steel structure welding, uses a plurality of guide plates to guide during the process of pushing the H-shaped steel structure, cooperates with the H-groove to correct the pushing angle and position of the H-shaped steel structure, and improves the welding effect of the two H-shaped steel structures.

[0018] 2. The steel structure welding fixing device described in the present invention scrapes away impurities on the H-shaped steel structure of the outer wall of the test frame through a scraper fixed thereon, thereby reducing the influence of impurities adhering to the H-shaped steel structure on welding. The lubricating oil is stored in the storage chamber, and the trigger plate is squeezed during the rotation of the gear ring to drive the sealing plate to rotate, so that the lower leakage hole is opened to flow down the lubricating oil, thereby controlling the lubricating oil from flowing down the lower leakage hole. The lubricating oil flows into the interior of multiple No. 1 brushes and No. 2 brushes, which can lubricate the tooth surface of the gear ring and reduce the occurrence of jamming of the gear ring and the gear when they rotate in coordination for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 It is a structural schematic diagram of the motor frame in the present invention; Figure 3 It is a structural schematic diagram of the fixing frame in the present invention; Figure 4 It is a structural schematic diagram of the test stand in the present invention; Figure 5 It is a partial structural sectional view of the storage box in the present invention.

[0021] In the figure: 1. fixed base; 11. fixed frame; 12. gear ring; 13. support frame; 14. long rod; 15. gear; 2. limit plate; 3. motor frame; 31. servo motor; 32. belt; 4. guide plate; 5. connecting rod; 51. test frame; 52. H groove; 6. scraper; 7. storage box; 71. plug; 72. storage chamber; 73. lower leakage hole; 8. rotating wheel; 81. sealing plate; 82. trigger plate; 9. guide plate; 91. brush No. 1; 92. brush No. 2. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figures 1 to 3 As shown, a steel structure welding and fixing device according to an embodiment of the present invention comprises two fixed bases 1; a plurality of fixing frames 11 are fixedly connected at the ends of the two fixed bases 1; a gear ring 12 is rotatably connected to the inner walls of the plurality of fixing frames 11; a support frame 13 is fixedly connected to the outer walls of the two fixed bases 1; a long rod 14 is rotatably connected to the inner wall of the support frame 13; a plurality of gears 15 are rotatably connected to the long rod 14 near the gear ring 12, and the gear 15 can mesh and rotate with the gear ring 12; a matching component is provided on the inner wall of the plurality of gear rings 12, and the matching component is used for supporting and splicing the steel structure; a transmission component is provided on the outside of the fixed base 1, and the transmission component is used to drive the long rod 14 to rotate; when fixing and welding the H-shaped steel structure, firstly, the two fixed bases 1 are respectively spliced ​​relative to each other to form a fixed structure. The base of the fixed device, each fixed base 1 is fixed with two fixing frames 11, the two H-shaped steel structures are respectively and horizontally passed through the four fixing frames 11 and then spliced, the two steel structures are placed on the matching components and fixed, the tails of the two H-shaped steel structures are fixed and limited, the external welding equipment is located above the joint of the two H-shaped steel structures and starts welding, as the transmission component drives the long rod 14 to rotate slowly, the long rod 14 supported by the support frame 13 synchronously drives multiple gears 15 to rotate, a gear 15 and a gear ring 12 mesh with each other and rotate, thereby driving the H-shaped steel structure fixed by the matching component to rotate slowly, so that the welding equipment can weld and form the joint of the H-shaped steel structure at one time, replacing the traditional fixing device The method of multiple fixed welding improves the efficiency and welding effect of the H-shaped steel structure.

[0024] The mating component includes a connecting frame and a limit plate 2; the two connecting frames are relatively fixed on the inner wall of the gear ring 12; the limit plate 2 is fixedly connected to the connecting frame; grooves are provided on the opposite surfaces of the two limit plates 2; when welding the H-shaped steel structure, a single H-shaped steel structure is passed through the middle of the fixing frame 11, and is tightly fitted on the two relatively fixed limit plates 2, and the two connecting frames respectively support the two limit plates 2, and continue to push the single H-shaped steel structure through the other fixing frame 11, and then the other H-shaped steel structure is reversely passed through the other two fixing frames 11, so that the two H-shaped steel structures are spliced ​​together, and the splicing is supported by multiple limit plates 2 to improve the stability of the H-shaped steel structure welding. When fixing H-shaped steel structures of different models, it is necessary to replace the limit plates 2 of corresponding models to make the H-shaped steel structure more stably fixed.

[0025] like Figure 1 and Figure 2As shown, the transmission assembly includes a motor frame 3, a servo motor 31 and a belt 32; the motor frame 3 is fixedly connected to the outer wall of a fixed base 1; the servo motor 31 is fixedly connected to the inner wall of the motor frame 3; the belt 32 is sleeved on the long rod 14 and the output end of the servo motor 31; when two H-shaped steel structures are spliced ​​and welded, the output end of the servo motor 31 on the motor frame 3 is rotated, and the output end of the servo motor 31 cooperates with the belt 32 to drive the long rod 14 to rotate, and the long rod 14 synchronously drives the gear ring 12 connected by multiple gears 15 to rotate, thereby achieving the effect of rotating welding of the H-shaped steel structure and improving the efficiency of welding the H-shaped steel structure.

[0026] like Figures 1 to 3 As shown, the outer walls of the plurality of limit plates 2 are fixedly connected with guide plates 4; the guide plates 4 are composed of a trapezoidal plate and two triangular plates, and when the steel member is placed on the guide plates 4, the two triangular plates are located on the surface of the trapezoidal plate for guidance; when welding the H-shaped steel structure, the two H-shaped steel structures are first spliced, and the single H-shaped steel structure is passed through the middle of the two fixing frames 11. In the process of the H-shaped steel structure passing through the fixing frames 11, it is fixed to the front end of the limit plate 2 by relying on the guide plates 4. The outer wall of the H-shaped steel structure can fit the side wall of the triangular plate for guidance, and is placed on the trapezoidal plate and slides onto the limit plate 2, thereby playing a role in guiding the placement of the H-shaped steel structure.

[0027] like Figures 1 to 4 As shown, the outer wall of the limit plate 2 is fixed with a plurality of connecting rods 5; the connecting rods 5 are fixed with a test frame 51 away from the outer wall of the limit plate 2; an H-groove 52 is provided on the test frame 51, and the cross-sectional shape of the H-groove 52 is the same as the cross-sectional shape of the steel structure; when pushing the H-shaped steel structure for splicing, four connecting rods 5 are used to fix the test frame 51 on one side of the two limit plates 2, and after the H-shaped steel structure is pushed through the two fixing frames 11, the H-shaped steel structure continues to pass through the H-groove 52, and the H-groove 52 can correct the angle and position of the H-shaped steel structure, thereby improving the neatness of the splicing of the two H-shaped steel structures, thereby making the welding more precise.

[0028] A scraper 6 is fixedly connected to the outer wall of the test frame 51; the scraper 6 is located at the edge of the H-groove 52, and the scraper 6 is close to one side of the connecting rod 5; when two H-shaped steel structures are spliced, the scraper 6 is fixed to the outer wall of the test frame 51 close to the H-groove 52, and the scraper 6 can scrape the outer wall of the H-shaped steel structure during the process of passing through the H-groove 52, thereby reducing the adhesion of impurities on the outer wall of the H-shaped steel structure and improving the welding effect of the two spliced ​​H-shaped steel structures.

[0029] like Figures 1 to 3 , Figure 5As shown, a plurality of storage boxes 7 are fixedly connected to the top outer walls of the fixing frames 11; a plug 71 is inserted at the top of the storage box 7; a storage cavity 72 is provided inside the storage box 7; a lower leakage hole 73 is provided at the bottom end of the storage cavity 72; a plugging component is provided inside the storage box 7, and the plugging component is used to control the plugging of the lower leakage hole 73; when the two H-shaped steel structures are rotationally welded, the plurality of gears 15 and the gear ring 12 are prone to jamming due to long-term cooperation, thereby affecting the welding effect of the H-shaped steel structure, the storage box 7 is fixed to the top of the fixing frame 11, and the lubricating oil is injected into the storage cavity 72 after the plug 71 is pulled out, and the plugging is controlled by the plugging component. During the rotation of the gear ring 12, the lubricating oil in the storage cavity 72 is controlled to flow down from the lower leakage hole 73, and the lubricating oil flows to the gear ring 12 and the gear 15 for lubrication, thereby reducing the probability of jamming of the gear 15 and the gear ring 12 after long-term cooperation.

[0030] The blocking assembly includes a rotating wheel 8, a blocking plate 81 and a trigger plate 82; the rotating wheel 8 is rotatably connected to the inside of the storage box 7 through a torsion spring; the blocking plate 81 is fixed to the outer wall of the rotating wheel 8 and is close to the lower leakage hole 73; the trigger plate 82 is fixed to the outer wall of the rotating wheel 8 and is away from the blocking plate 81; when the storage chamber 72 is filled with lubricating oil to control the downstream flow, the gear ring 12 is used to rotate synchronously with the gear 15, and the multiple teeth on the gear ring 12 can intermittently squeeze the trigger plate 82 to cooperate with the rotation of the rotating wheel 8. During the rotation of the rotating wheel 8, the torsion spring is stressed, and the blocking plate 81 opens the lower leakage hole 73 as the rotating wheel 8 rotates. The lubricating oil in the storage chamber 72 flows down from the lower leakage hole 73 to the gear ring 12 for lubrication. When one tooth of the gear ring 12 rotates over the trigger plate 82, the torsion spring drives the rotating wheel 8 to elastically reset, so that the blocking plate 81 blocks the lower leakage hole 73, thereby controlling and blocking the lower leakage hole 73.

[0031] A guide plate 9 is fixedly connected to the inner wall of the storage box 7 near the lower leakage hole 73; a plurality of No. 1 brushes 91 and No. 2 brushes 92 are respectively fixedly connected to the outer walls of the bottom ends of the guide plate 9, and the No. 1 brush 91 and the No. 2 brush 92 can be connected to the lower leakage hole 73 through the guide plate 9; when the upstream and downstream lubricating oil are lubricated to the gear ring 12, the lubricating oil is used to flow down from the lower leakage hole 73, and the lubricating oil flows to the inside of the guide plate 9, and the lubricating oil respectively enters the inside of the plurality of No. 1 brushes 91 and the No. 2 brush 92, and the lubricating oil attached to the surfaces of the plurality of No. 1 brushes 91 and the No. 2 brushes 92 can coat the surfaces of the teeth passing through the gear ring 12, thereby improving the coating effect of the lubricating oil on the surface of the gear ring 12.

[0032] The No. 1 brush 91 can be rubbed against the lower surface of the teeth of the gear ring 12; the No. 2 brush 92 can be rubbed against the upper surface of the teeth of the gear ring 12; when lubricating the teeth on the gear ring 12, multiple No. 1 brushes 91 are located in front of the No. 2 brush 92. After lubricating oil is attached to the surfaces of the multiple No. 1 brushes 91 and the No. 2 brush 92, as the multiple teeth on the gear ring 12 rotate in coordination with the teeth of the gear 15, the multiple No. 1 brushes 91 can coat the lower surface of the teeth of the gear ring 12, and the multiple No. 2 brushes 92 can coat the upper surface of the teeth of the gear ring 12, that is, the reverse side of the teeth coated by the multiple No. 1 brushes 91 is used to improve the coating effect on the surface of the teeth of the gear ring 12.

[0033] Working process: When welding the H-shaped steel structure, firstly, two fixed bases 1 are spliced ​​relative to each other to form the base of the fixing device. Two fixing frames 11 are fixed on each fixed base 1. The two H-shaped steel structures are respectively passed through the four fixing frames 11 horizontally and then spliced. The two steel structures are placed on the matching components and fixed. The tails of the two H-shaped steel structures are fixed and limited. The external welding equipment is located above the joint of the two H-shaped steel structures and welding is started. As the transmission component drives the long rod 14 to rotate slowly, the long rod 14 supported by the support frame 13 synchronously drives multiple gears 15 to rotate. A gear 15 and a gear ring 12 mesh with each other and rotate, thereby driving the H-shaped steel structure fixed by the matching component to rotate slowly, so that the welding equipment can splice the H-shaped steel structure. The joint is formed by one-time welding, which replaces the traditional method of multiple fixed welding of the fixing device, and improves the efficiency and welding effect of the H-shaped steel structure welding; when welding the H-shaped steel structure, a single H-shaped steel structure is passed through the middle of the fixing frame 11, and is tightly fitted on two relatively fixed limit plates 2, and the two connecting frames respectively support the two limit plates 2, and the single H-shaped steel structure continues to be pushed through another fixing frame 11, and then the other H-shaped steel structure is reversely passed through the other two fixing frames 11, so that the two H-shaped steel structures are spliced ​​together, and the splicing is supported by multiple limit plates 2, so that the stability of the H-shaped steel structure welding is improved. When fixing H-shaped steel structures of different models, it is necessary to replace the limit plates 2 of the corresponding models to make the H-shaped steel structure more stably fixed; When welding two H-shaped steel structures after splicing, the output end of the servo motor 31 on the motor frame 3 is rotated, and the output end of the servo motor 31 cooperates with the belt 32 to drive the long rod 14 to rotate, and the long rod 14 synchronously drives the gear ring 12 connected by multiple gears 15 to rotate, so as to achieve the effect of rotating welding of the H-shaped steel structure and improve the efficiency of welding the H-shaped steel structure; When welding the H-shaped steel structure, first splice the two H-shaped steel structures, and pass the single H-shaped steel structure through the middle of the two fixing frames 11. In the process of the H-shaped steel structure passing through the fixing frames 11, it is fixed to the front end of the limit plate 2 by the guide plate 4. The outer wall of the H-shaped steel structure can fit the side wall of the triangular plate for guidance, and is placed on the trapezoidal plate and slides onto the limit plate 2, which plays a role in guiding the placement of the H-shaped steel structure. When pushing the H-shaped steel structure for splicing, four connecting rods 5 are used to fix the test frame 51 on one side of the two limit plates 2. After the H-shaped steel structure is pushed through the two fixing frames 11, the H-shaped steel structure continues to pass through the H-groove 52. The H-groove 52 can correct the angle and position of the H-shaped steel structure, improve the neatness of the splicing of the two H-shaped steel structures, and thus make the welding more precise; when splicing two H-shaped steel structures, a scraper 6 is fixed on the outer wall of the test frame 51 near the H-groove 52. The scraper 6 can scrape the outer wall of the H-shaped steel structure during the process of passing through the H-groove 52, reduce the adhesion of impurities on the outer wall of the H-shaped steel structure, and improve the welding effect of the two spliced ​​H-shaped steel structures; When two H-shaped steel structures are rotated and welded, since the multiple gears 15 and the gear ring 12 are easily stuck due to long-term cooperation, the effect of H-shaped steel structure welding is affected. The storage box 7 is fixed on the top of the fixing frame 11, and the plug 71 is pulled out to inject lubricating oil into the storage cavity 72, and the plugging is controlled by the plugging component. During the rotation of the gear ring 12, the lubricating oil in the storage cavity 72 is controlled to flow down from the lower leakage hole 73, and the lubricating oil flows to the gear ring 12 and the gear 15 for lubrication, thereby reducing the gear 15 and The probability of the gear ring 12 getting stuck after a long period of cooperation; when the storage chamber 72 is filled with lubricating oil to control the downstream flow, the gear ring 12 is used to rotate synchronously with the gear 15, and the multiple teeth on the gear ring 12 can intermittently squeeze the trigger plate 82 to cooperate with the rotation of the rotating wheel 8. During the rotation of the rotating wheel 8, the torsion spring is stressed, and the blocking plate 81 opens the lower leakage hole 73 as the rotating wheel 8 rotates. The lubricating oil in the storage chamber 72 flows down from the lower leakage hole 73 to the gear ring 12 for lubrication. When one tooth of the gear ring 12 rotates over the trigger plate 82, the torsion spring The rotating wheel 8 is driven to elastically reset, so that the blocking plate 81 blocks the lower leakage hole 73, which plays a role in controlling the blocking of the lower leakage hole 73; when the lubricating oil flows down from the lower leakage hole 73 to the inner part of the guide plate 9, the lubricating oil respectively enters the inner parts of the plurality of No. 1 brushes 91 and No. 2 brushes 92, and the lubricating oil attached to the surfaces of the plurality of No. 1 brushes 91 and No. 2 brushes 92 can coat the tooth surfaces passing through the gear ring 12, thereby improving the lubricating oil on the surface of the gear ring 12 Coating effect: When lubricating the teeth on the gear ring 12, a plurality of No. 1 brushes 91 are located in front of the No. 2 brush 92. After the lubricating oil is attached to the surfaces of the plurality of No. 1 brushes 91 and the No. 2 brush 92, as the plurality of teeth on the gear ring 12 rotate in coordination with the teeth of the gear 15, the plurality of No. 1 brushes 91 can coat the lower surfaces of the teeth of the gear ring 12, while the plurality of No. 2 brushes 92 can coat the upper surfaces of the teeth of the gear ring 12, that is, the plurality of No. 1 brushes 91 coat the reverse sides of the teeth, thereby improving the coating effect on the surface of the teeth of the gear ring 12.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel structure welding fixture, characterized in that: The invention comprises two fixed bases (1); a plurality of fixed frames (11) are fixedly connected to the ends of the two fixed bases (1); the inner walls of the plurality of fixed frames (11) are rotatably connected to a toothed ring (12); the outer walls of the two fixed bases (1) are fixedly connected to a support frame (13); the inner wall of the support frame (13) is rotatably connected to a long rod (14); the long rod (14) is rotatably connected to a plurality of gears (15) near the toothed ring (12), and the gears (15) and the toothed ring (12) can mesh and rotate; the inner walls of the plurality of toothed rings (12) are provided with matching components, and the matching components are used for supporting and splicing a steel structure; the outside of the fixed base (1) is provided with a transmission component, and the transmission component is used for driving the long rod (14) to rotate.

2. A steel structure welding and fixing device according to claim 1, characterized in that: The mating component comprises a connecting frame and a limiting plate (2); the two connecting frames are relatively fixed on the inner wall of the gear ring (12); the limiting plate (2) is fixed on the connecting frame; and grooves are formed on the opposite surfaces of the two limiting plates (2).

3. A steel structure welding and fixing device according to claim 1, characterized in that: The transmission assembly comprises a motor frame (3), a servo motor (31) and a belt (32); the motor frame (3) is fixedly connected to the outer wall of a fixed base (1); the servo motor (31) is fixedly connected to the inner wall of the motor frame (3); and the belt (32) is sleeved on the long rod (14) and the output end of the servo motor (31).

4. A steel structure welding and fixing device according to claim 2, characterized in that: The outer walls of the plurality of limit plates (2) are fixedly connected with guide plates (4); the guide plates (4) are composed of a trapezoidal plate and two triangular plates, and when the steel component is placed on the guide plates (4), the two triangular plates are located on the surface of the trapezoidal plate for guidance.

5. A steel structure welding and fixing device according to claim 2, characterized in that: A plurality of connecting rods (5) are fixedly connected to the outer wall of the limiting plate (2); a test frame (51) is fixedly connected to the outer wall of the connecting rod (5) away from the limiting plate (2); an H groove (52) is provided on the test frame (51), and the cross-sectional shape of the H groove (52) is the same as the cross-sectional shape of the steel structure.

6. A steel structure welding and fixing device according to claim 5, characterized in that: A scraper (6) is fixedly connected to the outer wall of the test frame (51); the scraper (6) is located at the edge of the H groove (52), and the scraper (6) is close to one side of the connecting rod (5).

7. A steel structure welding and fixing device according to claim 1, characterized in that: A storage box (7) is fixedly connected to the top outer wall of the plurality of fixing frames (11); a plug (71) is plugged into the top end of the storage box (7); a storage cavity (72) is provided inside the storage box (7); a lower leakage hole (73) is provided at the bottom end of the storage cavity (72); a plugging component is provided inside the storage box (7), and the plugging component is used to control the plugging of the lower leakage hole (73).

8. A steel structure welding and fixing device according to claim 7, characterized in that: The blocking assembly comprises a rotating wheel (8), a blocking plate (81) and a trigger plate (82); the rotating wheel (8) is rotatably connected to the interior of the storage box (7) via a torsion spring; the blocking plate (81) is fixedly connected to the outer wall of the rotating wheel (8) and close to the lower leakage hole (73); and the trigger plate (82) is fixedly connected to the outer wall of the rotating wheel (8) and away from the blocking plate (81).

9. A steel structure welding and fixing device according to claim 7, characterized in that: A guide plate (9) is fixedly connected to the inner wall of the storage box (7) near the lower leakage hole (73); a plurality of No. 1 brushes (91) and No. 2 brushes (92) are respectively fixedly connected to the outer wall of the bottom end of the guide plate (9), and the No. 1 brushes (91) and No. 2 brushes (92) can be connected to the lower leakage hole (73) through the guide plate (9).

10. A steel structure welding and fixing device according to claim 9, characterized in that: The first brush (91) can be rubbed against the lower surface of the teeth of the gear ring (12); and the second brush (92) can be rubbed against the upper surface of the teeth of the gear ring (12).

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