Auxiliary welding device for steel structure
The automatic fixing and preheating of steel structures is achieved by using electric slide rails, servo motor-driven pressing components, and electric heaters, which solves the problem of cumbersome manual fixing in existing technologies and improves welding efficiency and weld quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUAN WEIHONG STEEL STRUCTURE CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
Existing steel structure welding auxiliary devices require manual fixing, which is cumbersome and results in low welding efficiency.
It employs multiple electric slide rails and servo motor driven pressing components, combined with electromagnets and electric heaters, to achieve automated fixing and preheating functions, adapting to the positioning and preheating needs of different column steel structures.
It improves welding efficiency, enhances the stability of column steel structures, improves weld quality, and reduces cracks and deformation.
Smart Images

Figure CN224129013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure technology, specifically to a welding auxiliary device for steel structures. Background Technology
[0002] Steel structures, which are structures made of steel materials, are one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. Rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are used. The components or parts are usually connected by welds, bolts or rivets. Due to its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields.
[0003] A search revealed a welding auxiliary device for steel structures with patent publication number CN214518414U, relating to the field of steel structure technology. This welding auxiliary device includes a base plate, a fixed shaft fixedly connected to the top of the base plate, an adjusting plate movably sleeved on the surface of the fixed shaft, a sliding connection between the bottom of the adjusting plate and the top of the base plate, a limiting block fixedly connected to the bottom of the adjusting plate, and a limiting groove formed on the top of the base plate. The surface of the limiting block slidably connects to the inner wall of the limiting groove. By setting an angle indicator plate, screws, an adjusting plate, and limiting blocks, when the welding angle of the steel structure needs to be adjusted, the sliding cover is moved, the screws are rotated to separate the latex pad from the base plate, the adjusting plate is rotated to make the pointer slide on the angle indicator plate, and the limiting block moves along the inner wall of the limiting groove. When the desired position is reached, the screws are rotated in the opposite direction to make the latex pad tightly fit against the base plate, thus fixing the adjusting plate and achieving the effect of easy adjustment.
[0004] Although the above-mentioned device can fix the steel structure and adjust the angle of the two steel structures, it is cumbersome to fix the steel structure manually, which will lead to low welding efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a welding auxiliary device for steel structures to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding auxiliary device for steel structures, comprising a mounting plate and two support rollers. Two symmetrically distributed first electric slide rails are mounted on both outer surfaces of the mounting plate, and mounting frames are mounted on one side of the sliding parts of the four first electric slide rails. The two ends of the two support rollers are respectively connected to the two mounting frames via bearings. A C-shaped plate is fixed to one side of the outer surface of the two mounting frames located on the same side. An extension plate is mounted on one side of the outer surface of the C-shaped plate, and two symmetrically distributed second electric slide rails are mounted on the top outer surface of the extension plate. A pressing component is fixed to the top outer surface of the sliding parts of the two second electric slide rails, and a preheating component is mounted on the bottom of the outer surfaces of the two mounting frames located on the same side. A motor is mounted on the top of one side of the outer surface of one of the mounting frames, and the output end of the motor is connected to one end of one of the support rollers.
[0007] Furthermore, both of the pressing components include a base plate, which is fixedly connected to the sliding element of the second electric slide rail. A servo motor is mounted on the bottom surface of the base plate, and the output shaft of the servo motor passes through the base plate to fix a disc. An L-shaped plate is mounted on the top surface of the disc.
[0008] Furthermore, a cylinder is installed on the top surface of the L-shaped plate, and one end of the piston rod of the cylinder passes through the L-shaped plate and is fixed to a pressing plate. A pressing pad is installed on the bottom surface of the pressing plate, and a round opening is opened on the bottom surface of the pressing pad. An electromagnet is installed in the round opening, and the electromagnet is fixedly connected to the bottom surface of the pressing plate.
[0009] Furthermore, both of the preheating components include a strip plate, which is fixedly connected to the mounting bracket. A third electric slide rail is mounted on the top surface of the strip plate, and a rectangular plate is mounted on the top surface of the sliding element of the third electric slide rail.
[0010] Furthermore, an electric telescopic rod is installed on the top surface of the rectangular plate, and a top plate is installed on the top end of the piston rod of the electric telescopic rod, with an electric heater installed on the top surface of the top plate.
[0011] Furthermore, the pressing pads of the two pressing components contact the support rollers, and the preheating component is used to preheat the steel structure.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] A welding auxiliary device for steel structures includes multiple first electric slide rails that can adjust the distance between two support rollers to accommodate different columnar steel structures. Two pressing components can also be adjusted in distance to select a suitable position for pressing and fixing the columnar steel structure. The pressing components are equipped with electromagnets to further increase the stability of the columnar steel structure on the two support rollers.
[0014] Meanwhile, two preheating components were set up to preheat and subsequently insulate the end that needs to be welded after the column steel structure is fixed, which helps to improve the weld quality of the steel structure and reduce the occurrence of cracks, deformation and other issues. Attached Figure Description
[0015] Figure 1 This is a front view structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the pressing component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the preheating component structure of this utility model.
[0019] In the diagram: 1. Mounting plate; 2. First electric slide rail; 3. Mounting bracket; 4. Motor; 5. Support roller; 6. C-shaped plate; 7. Second electric slide rail; 8. Pressing assembly; 81. Base plate; 82. Servo motor; 83. Disc; 84. L-shaped plate; 85. Cylinder; 86. Pressing plate; 87. Pressing pad; 88. Electromagnet; 9. Preheating assembly; 91. Strip plate; 92. Third electric slide rail; 93. Rectangular plate; 94. Electric telescopic rod; 95. Top plate; 96. Electric heater. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1-4As shown, this utility model provides a technical solution: a welding auxiliary device for steel structures, including a mounting plate 1 and two support rollers 5. Two symmetrically distributed first electric slide rails 2 are installed on both sides of the mounting plate 1, and mounting brackets 3 are installed on one side of the sliding parts of the four first electric slide rails 2. The two ends of the two support rollers 5 are respectively connected to the two mounting brackets 3 through bearings. The same C-shaped plate 6 is fixed on one side of the two mounting brackets 3 located on the same side. An extension plate is installed on one side of the C-shaped plate 6, and two symmetrically distributed second electric slide rails 7 are installed on the top surface of the extension plate. Pressing components 8 are fixed on the top surface of the sliding parts of the two second electric slide rails 7, and preheating components 9 are installed on the bottom surface of the two mounting brackets 3 located on the same side. A motor 4 is installed on the top surface of one side of the mounting bracket 3, and the output end of the motor 4 is connected to one end of one of the support rollers 5.
[0022] It should be noted that the outer surface of the support roller 5 can be fitted with anti-slip rings. One of the support rollers 5 is an active roller driven by the motor 4, and the other support roller 5 is a driven roller. The C-shaped plate 6 is located on one side of the driven roller, and the preheating component 9 moves with the movement of the mounting frame 3.
[0023] Both pressing components 8 include a base plate 81, which is fixedly connected to the sliding part of the second electric slide rail 7. A servo motor 82 is installed on the bottom surface of the base plate 81. The output shaft of the servo motor 82 passes through the base plate 81 and is fixed to a disc 83. An L-shaped plate 84 is installed on the top surface of the disc 83.
[0024] It should be noted that the base plate 81 and the outer surface of the C-shaped plate 6 form a sliding fit, and the disc 83 and the top outer surface of the base plate 81 form a rotational fit.
[0025] A cylinder 85 is installed on the top surface of the L-shaped plate 84, and one end of the piston rod of the cylinder 85 passes through the L-shaped plate 84 and is fixed to a pressing plate 86. A pressing pad 87 is installed on the bottom surface of the pressing plate 86. A round opening is provided on the bottom surface of the pressing pad 87, and an electromagnet 88 is provided inside the round opening. The electromagnet 88 is fixedly connected to the bottom surface of the pressing plate 86.
[0026] It should be noted that the pressing pad 87 can contact the support roller 5, and the L-shaped plate 84 can move away from the support roller 5 under the drive of the servo motor 82.
[0027] Both preheating components 9 include strip plates 91, which are fixedly connected to the mounting bracket 3. A third electric slide rail 92 is mounted on the top surface of the strip plate 91, and a rectangular plate 93 is mounted on the top surface of the sliding part of the third electric slide rail 92.
[0028] It should be noted that the length of the third electric slide rail 92 is the same as the length of the strip plate 91, and the rectangular plate 93 can contact the outer surface of the mounting bracket 3.
[0029] An electric telescopic rod 94 is installed on the top surface of the rectangular plate 93, and a top plate 95 is installed on the top end of the piston rod of the electric telescopic rod 94. An electric heater 96 is installed on the top surface of the top plate 95.
[0030] It should be noted that the electric telescopic rod 94 can adjust the height of the electric heater 96 to adapt to the preheating work of column steel structures of different specifications.
[0031] The pressing pads 87 of the two pressing components 8 are in contact with the support roller 5, and the preheating component 9 is used to preheat the steel structure.
[0032] Working principle: In use, the cylindrical steel structure can be placed on two support rollers 5. The four first electric slide rails 2 can adjust the distance between the two support rollers 5 to accommodate different cylindrical steel structures. Then, the two pressing components 8 adjust the distance under the operation of the two second electric slide rails 7 to select a suitable position. Then, the cylinder 85 drives the pressing pad 87 on the pressing plate 86 to press down and fix the cylindrical steel structure. At the same time, the electromagnet 87 operates to attract the cylindrical steel structure, completing the entire fixing work. The two preheating components 9 approach the cylindrical steel structure under the operation of the two third electric slide rails 92. The two electric heaters 96 operate to preheat and subsequently insulate the end of the cylindrical steel structure that needs to be welded.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A welding aid for steel structures, comprising a setting plate (1) and two support rollers (5), characterised in that: The mounting plate (1) has two symmetrically distributed first electric slide rails (2) installed on both sides of its outer surface. The sliding parts of the four first electric slide rails (2) are each mounted with a mounting bracket (3). The two ends of the two support rollers (5) are connected to the two mounting brackets (3) respectively through bearings. The two mounting brackets (3) on the same side have the same C-shaped plate (6) fixed on one side of their outer surface. The C-shaped plate (6) has an extension plate installed on one side of its outer surface. The top of the extension plate has two symmetrically distributed second electric slide rails (7). The sliding parts of the two second electric slide rails (7) are each fixed with a pressing component (8). The bottom of the two mounting brackets (3) on the same side has a preheating component (9). One of the mounting brackets (3) has a motor (4) installed on the top of one side of its outer surface. The output end of the motor (4) is connected to one end of one of the support rollers (5).
2. A welding aid for steel structures according to claim 1, characterized in that: Both of the pressing components (8) include a base plate (81), which is fixedly connected to the sliding element of the second electric slide rail (7). A servo motor (82) is mounted on the bottom surface of the base plate (81), and the output shaft of the servo motor (82) passes through the base plate (81) and is fixed with a disc (83). An L-shaped plate (84) is mounted on the top surface of the disc (83).
3. A welding aid for steel structures according to claim 2, characterized in that: A cylinder (85) is installed on the top surface of the L-shaped plate (84), and one end of the piston rod of the cylinder (85) passes through the L-shaped plate (84) and is fixed with a pressing plate (86). A pressing pad (87) is installed on the bottom surface of the pressing plate (86). A round opening is provided on the bottom surface of the pressing pad (87), and an electromagnet (88) is provided inside the round opening. The electromagnet (88) is fixedly connected to the bottom surface of the pressing plate (86).
4. A welding aid for steel structures according to claim 1, characterized in that: Both of the preheating components (9) include a strip plate (91), which is fixedly connected to the mounting bracket (3). A third electric slide rail (92) is mounted on the top surface of the strip plate (91), and a rectangular plate (93) is mounted on the top surface of the sliding part of the third electric slide rail (92).
5. A welding aid for steel structures according to claim 4, characterized in that: An electric telescopic rod (94) is installed on the top surface of the rectangular plate (93), and a top plate (95) is installed on the top end of the piston rod of the electric telescopic rod (94), and an electric heater (96) is installed on the top surface of the top plate (95).
6. A welding aid for steel structures according to claim 1, characterized in that: The pressing pads (87) of the two pressing components (8) are in contact with the support rollers (5), and the preheating component (9) is used to preheat the steel structure.
Citation Information
Patent Citations
Auxiliary welding device for steel structure
CN214518414U