A steel box girder shear stud welding device

Abstract

This utility model relates to the technical field of shear stud welding equipment, and discloses a shear stud welding device for steel box girders. It includes a fixed block, a support frame fixedly connected to the lower surface of the fixed block, and a first hydraulic cylinder fixedly connected inside both the fixed block and the support frame. A push block is fixedly connected to the output end of the first hydraulic cylinder. An L-shaped block is slidably connected to the outer wall of the push block, and a limit rail is rotatably connected inside the L-shaped block. A moving block is slidably connected to the inner wall of the limit rail, and a clamping block is fixedly connected to the lower surface of the moving block. A welding torch is clamped to the outer wall of the clamping block. In this utility model, activating the first hydraulic cylinder, through the mutual cooperation between the fixed block, support frame, push block, L-shaped block, limit rail, moving block, clamping block, and welding torch, ensures that the welding torch and workpiece maintain precise stability, guarantees welding perpendicularity and penetration consistency, effectively suppresses vibration deviation, and improves the stability of the welding process and the yield rate of finished products.

Description

Technical Field

[0001] This utility model relates to the technical field of shear stud welding equipment, and in particular to a shear stud welding device for steel box girders. Background Technology

[0002] As bridge spans continue to increase and load standards continue to rise, the traditional method of manually welding tens of thousands of shear studs suffers from bottlenecks such as large quality fluctuations, low efficiency, and high labor intensity. It cannot meet the stringent requirements of super projects for millimeter-level positioning accuracy, full penetration welding consistency, and traceable quality control. Therefore, a steel box girder shear stud welding device is needed.

[0003] A steel box girder shear stud welding device is a specialized piece of equipment used in the construction of steel structure bridges to achieve efficient and precise welding of shear studs to steel box girders or bridge decks. Its core function is to replace traditional manual welding through mechanical positioning and automated control, thereby improving welding quality, efficiency, and construction safety. In previous technologies, low positioning accuracy of the welding torch, welding angle deviation, and insufficient penetration depth were common problems, which seriously affected the load-bearing strength of the shear studs. At the same time, the poor stability of manual torch holding easily led to defects such as weld porosity and slag inclusions, significantly reducing the welding qualification rate and structural safety. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a steel box girder shear stud welding device, which aims to improve the problems of low welding torch positioning accuracy, welding angle deviation and insufficient penetration depth, which seriously affect the load-bearing strength of shear studs. At the same time, the poor stability of manual torch holding easily leads to defects such as weld porosity and slag inclusion, which greatly reduces the welding qualification rate and structural safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel box girder shear stud welding device, comprising a fixing block, a support frame fixedly connected to the lower surface of the fixing block, a first hydraulic cylinder fixedly connected inside both the fixing block and the support frame, a push block fixedly connected to the output end of the first hydraulic cylinder, an L-shaped block slidably connected to the outer wall of the push block, a limit slide rail rotatably connected inside the L-shaped block, the upper surface of the limit slide rail fixedly connected to the lower surface of the support frame, a moving block slidably connected to the inner wall of the limit slide rail, the outer wall of the moving block slidably connected to the inner wall of the L-shaped block, a clamping block fixedly connected to the lower surface of the moving block, a welding torch clamped to the outer wall of the clamping block, and a driving assembly provided on the upper surface of the fixing block.

[0006] The above technical solution involves activating the first hydraulic cylinder, which drives the push block to rotate the L-shaped block. As the L-shaped block rotates, it drives the moving block to slide, which in turn drives the clamping block to clamp and fix the welding torch. This ensures that the welding torch and the workpiece remain precise and stable, guarantees the consistency of welding verticality and penetration depth, effectively suppresses vibration deviation, and improves the stability of the welding process and the yield of finished products.

[0007] Preferably, the driving component includes a limiting post, the lower surface of which is fixedly connected to the upper surface of the fixing block, a support frame is slidably connected to the outer wall of the limiting post, a second hydraulic cylinder is fixedly connected inside the support frame, and the output end of the second hydraulic cylinder is fixedly connected to the upper surface of the fixing block.

[0008] Preferably, a first motor is fixedly connected inside the fixing block, and a worm gear is fixedly installed at the output end of the first motor, with the toothed end of the worm gear meshing with a worm wheel.

[0009] Preferably, a fixing rod is fixedly connected inside the worm gear, a fixing frame is rotatably connected to the outer wall of the fixing rod, the upper surface of the fixing frame is fixedly connected to the lower surface of the fixing block, and a clamping arm is fixedly connected to the outer wall of the worm gear.

[0010] Preferably, an adjusting block is fixedly connected to the upper surface of the support frame, and a fixing box is slidably connected to the outer wall of the adjusting block.

[0011] Preferably, a second motor is fixedly connected inside the fixed box, and a threaded rod is fixedly provided at the output end of the second motor. The outer wall of the threaded rod is rotatably connected inside the fixed box.

[0012] Preferably, the outer wall of the threaded rod is threaded into the interior of the adjusting block, and a connecting support is fixedly connected to the lower surface of the fixed box.

[0013] Preferably, a slider is fixedly connected to the lower surface of the connecting support, an electric slide rail is slidably connected to the outer wall of the slider, and a base is fixedly connected to the lower surface of the electric slide rail.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the activation of the first hydraulic cylinder, through the mutual cooperation between the fixed block, support frame, push block, L-shaped block, limit slide rail, moving block, clamping block and welding torch, can ensure that the welding torch and the workpiece maintain precise stability, ensure the consistency of welding verticality and penetration depth, effectively suppress vibration deviation, and improve the stability of the welding process and the finished product qualification rate.

[0015] 2. In this utility model, through the mutual cooperation between the adjusting block, the fixing box, the second motor, the threaded rod, the connecting support, the slider, the electric slide rail and the base, automated and rapid positioning is achieved, which greatly improves welding efficiency and consistency, reduces human error and labor intensity, and ensures millimeter-level accuracy of the shear stud welding position. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a steel box girder shear stud welding device proposed in this utility model; Figure 2 This is a partial structural diagram of the support frame of a steel box girder shear stud welding device proposed in this utility model; Figure 3 This is a cross-sectional schematic diagram of the internal structure of the fixing frame of the steel box girder shear stud welding device proposed in this utility model; Figure 4 This is a cross-sectional schematic diagram of the internal structure of the fixing box of a steel box girder shear stud welding device proposed in this utility model.

[0017] Legend: 1. Fixed block; 2. Support frame; 3. First hydraulic cylinder; 4. Push block; 5. L-shaped block; 6. Limiting slide rail; 7. Moving block; 8. Clamping block; 9. Welding torch; 10. Limiting post; 11. Support frame; 12. Second hydraulic cylinder; 13. First motor; 14. Worm gear; 15. Worm wheel; 16. Fixed rod; 17. Fixed frame; 18. Clamping arm; 19. Adjusting block; 20. Fixed box; 21. Second motor; 22. Threaded rod; 23. Connecting support; 24. Slider; 25. Electric slide rail; 26. Base. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Example 1: Reference Figure 1 and Figure 2This utility model provides an embodiment of a steel box girder shear stud welding device, comprising a fixing block 1, a support frame 2 fixedly connected to the lower surface of the fixing block 1, a first hydraulic cylinder 3 fixedly connected inside both the fixing block 1 and the support frame 2, a push block 4 fixedly connected to the output end of the first hydraulic cylinder 3, an L-shaped block 5 slidably connected to the outer wall of the push block 4, a limit slide rail 6 rotatably connected inside the L-shaped block 5, the upper surface of the limit slide rail 6 fixedly connected to the lower surface of the support frame 2, and a moving block slidably connected to the inner wall of the limit slide rail 6. 7. The outer wall of the movable block 7 is slidably connected to the inner wall of the L-shaped block 5. The lower surface of the movable block 7 is fixedly connected to the clamping block 8. The outer wall of the clamping block 8 is clamped to the welding gun 9. The upper surface of the fixed block 1 is provided with a driving assembly. The driving assembly includes a limiting post 10. The lower surface of the limiting post 10 is fixedly connected to the upper surface of the fixed block 1. The outer wall of the limiting post 10 is slidably connected to the support frame 11. The inside of the support frame 11 is fixedly connected to the second hydraulic cylinder 12. The output end of the second hydraulic cylinder 12 is fixedly connected to the upper surface of the fixed block 1. Specifically, the first hydraulic cylinder 3 is fixed inside the fixed block 1 and the support frame 2. The fixed block 1 and the support frame 2 provide fixed support for the first hydraulic cylinder 3, ensuring its stability. Shafts are fixedly connected to both sides of the push block 4. The first hydraulic cylinder 3 drives the push block 4, which in turn drives the L-shaped block 5 to rotate on the outer wall of the limiting slide rail 6. Shafts are fixedly connected to both sides of the limiting slide rail 6, which limit the L-shaped block 5 to prevent it from shifting during rotation. Simultaneously, the rotation of the L-shaped block 5 drives the moving block 7 to slide on the inner wall of the limiting slide rail 6. The sliding of the moving block 7 on the inner wall of the limiting slide rail 6 limits the moving block 7 to prevent it from falling. The moving blocks 7 on both sides drive the clamping blocks 8 on both sides to advance the welding torch 9. The welding torch 9 is clamped and fixed to ensure its stability. The support frame 11 provides stable support for the second hydraulic cylinder 12. When the second hydraulic cylinder 12 is activated, it drives the fixed block 1 to move, thereby driving the welding torch 9 to weld. At the same time, the fixed block 1 drives the limiting post 10 to slide inside the support frame 11. The limiting post 10 is slidably connected to the inside of the support frame 11 through the outer wall of the limiting post 10, thereby playing an auxiliary limiting role for the fixed block 1 and preventing displacement. This ensures that the welding torch 9 and the workpiece remain precise and stable, guarantees the consistency of welding verticality and penetration depth, effectively suppresses vibration displacement, and improves the stability of the welding process and the yield of finished products. The welding torch 9 firmly clamps the shear nail, accurately lifts the shear nail to generate an electric arc, and applies stable pressure to press the molten nail body into the molten pool.

[0020] Example 2: Reference Figure 1 and Figure 3The first motor 13 is fixedly connected inside the fixed block 1. The output end of the first motor 13 is fixedly provided with a worm gear 14. The tooth end of the worm gear 14 is meshed with a worm wheel 15. The fixed rod 16 is fixedly connected inside the worm wheel 15. The outer wall of the fixed rod 16 is rotatably connected with a fixed frame 17. The upper surface of the fixed frame 17 is fixedly connected to the lower surface of the fixed block 1. The outer wall of the worm wheel 15 is fixedly connected with a clamping arm 18. Specifically, the first motor 13 is started, which drives the worm gear 14 to rotate. When the worm gear 14 rotates, it drives the worm wheels 15 on both sides, which in turn drives the fixed rods 16 on both sides to rotate inside the fixed frame 17. The fixed frame 17 plays an auxiliary limiting role for the fixed rods 16, which in turn limits the worm wheels 15 to prevent them from shifting. When the worm wheels 15 rotate, they drive the clamping arms 18 on both sides to clamp and fix the welding gun 9, thereby effectively suppressing vibration and shifting, improving the stability of the welding process and the yield of qualified products.

[0021] Example 3: Reference Figure 1 and Figure 4 An adjusting block 19 is fixedly connected to the upper surface of the support frame 11, and a fixed box 20 is slidably connected to the outer wall of the adjusting block 19. A second motor 21 is fixedly connected inside the fixed box 20, and a threaded rod 22 is fixedly provided at the output end of the second motor 21. The outer wall of the threaded rod 22 is rotatably connected to the inside of the fixed box 20. The outer wall of the threaded rod 22 is threadedly connected to the inside of the adjusting block 19. A connecting support 23 is fixedly connected to the lower surface of the fixed box 20. A slider 24 is fixedly connected to the lower surface of the connecting support 23, and an electric slide rail 25 is slidably connected to the outer wall of the slider 24. A base 26 is fixedly connected to the lower surface of the electric slide rail 25. Specifically, the electric slide rail 25 is existing technology. The electric slide rails 25 on both sides drive the slider 24 to move synchronously. When the slider 24 on both sides moves, it drives the connecting support 23, which in turn drives the fixed box 20 to adjust. The second motor 21 is fixed inside the fixed box 20. The fixed box 20 provides stable support for the second motor 21, thereby starting the second motor 21. The second motor 21 drives the threaded rod 22 to rotate inside the fixed box 20. The fixed box 20 plays an auxiliary support and limit role for the threaded rod 22, ensuring that the threaded rod 22 is subjected to uniform force and preventing it from affecting the drive of the second motor 21. While the threaded rod 22 rotates, it drives the adjusting block 19 to adjust, thereby driving the welding gun 9 to adjust its position, thereby realizing automated and rapid positioning, greatly improving welding efficiency and consistency, reducing human error and labor intensity, and ensuring millimeter-level accuracy of the shear stud welding position.

[0022] Working principle: When the device is needed, the first hydraulic cylinder 3 inside the fixed block 1 and the support frame 2 is activated. The first hydraulic cylinder 3 drives the push block 4, which in turn drives the L-shaped block 5 to rotate on the outer wall of the limiting slide rail 6. While the L-shaped block 5 is rotating, it drives the moving block 7 to slide on the inner wall of the limiting slide rail 6. Then, the moving block 7 drives the clamping block 8 to clamp and fix the welding torch 9. Then, the second hydraulic cylinder 12 fixed inside the support frame 11 is activated. The second hydraulic cylinder 12 drives the fixed block 1 to move, which in turn drives the welding torch 9 to weld. At the same time, the fixed block 1 drives the limiting column 10 to slide inside the support frame 11, thereby ensuring that the welding torch 9 and the workpiece remain accurate and stable, ensuring the consistency of welding verticality and penetration depth, effectively suppressing vibration deviation, and improving the stability of the welding process and the yield of finished products. Similarly, starting the first motor 13 drives the worm gear 14 to rotate. When the worm gear 14 rotates, it drives the worm wheel 15, which in turn drives the fixed rod 16 to rotate inside the fixed frame 17. At the same time, when the worm wheel 15 rotates, it drives the clamping arm 18 to clamp and fix the welding gun 9, thereby effectively suppressing vibration and offset, improving the stability of the welding process and the product qualification rate. The electric slide rail 25 drives the slider 24 to move, which in turn drives the connecting support 23, thereby adjusting the fixed box 20. The second motor 21 inside the fixed box 20 is activated, which drives the threaded rod 22 to rotate inside the fixed box 20. As the threaded rod 22 rotates, it drives the adjusting block 19 to adjust, thereby adjusting the position of the welding torch 9. This device can not only ensure that the welding torch 9 and the workpiece remain precise and stable, guarantee the welding perpendicularity and penetration consistency, effectively suppress vibration deviation, improve the stability of the welding process and the yield of finished products, but also realize automated and rapid positioning, greatly improve welding efficiency and consistency, reduce human error and labor intensity, and ensure millimeter-level accuracy of the shear stud welding position.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shear stud welding device for steel box girders, comprising a fixing block (1), characterized in that: The lower surface of the fixed block (1) is fixedly connected to a support frame (2). The interior of both the fixed block (1) and the support frame (2) is fixedly connected to a first hydraulic cylinder (3). The output end of the first hydraulic cylinder (3) is fixedly connected to a push block (4). The outer wall of the push block (4) is slidably connected to an L-shaped block (5). The interior of the L-shaped block (5) is rotatably connected to a limit slide rail (6). The upper surface of the limit slide rail (6) is fixedly connected to the lower surface of the support frame (2). The inner wall of the limit slide rail (6) is slidably connected to a moving block (7). The outer wall of the moving block (7) is slidably connected to the inner wall of the L-shaped block (5). The lower surface of the moving block (7) is fixedly connected to a clamping block (8). The outer wall of the clamping block (8) is clamped to a welding torch (9). The upper surface of the fixed block (1) is provided with a drive assembly.

2. The steel box girder shear stud welding device according to claim 1, characterized in that: The drive assembly includes a limiting post (10), the lower surface of which is fixedly connected to the upper surface of the fixing block (1), and a support frame (11) is slidably connected to the outer wall of the limiting post (10). A second hydraulic cylinder (12) is fixedly connected inside the support frame (11), and the output end of the second hydraulic cylinder (12) is fixedly connected to the upper surface of the fixing block (1).

3. The steel box girder shear stud welding device according to claim 1, characterized in that: The first motor (13) is fixedly connected inside the fixed block (1), and a worm (14) is fixedly installed at the output end of the first motor (13). The tooth end of the worm (14) is meshed with a worm wheel (15).

4. The steel box girder shear stud welding device according to claim 3, characterized in that: The worm gear (15) is fixedly connected to a fixed rod (16) inside. The outer wall of the fixed rod (16) is rotatably connected to a fixed frame (17). The upper surface of the fixed frame (17) is fixedly connected to the lower surface of the fixed block (1). The outer wall of the worm gear (15) is fixedly connected to a clamping arm (18).

5. The steel box girder shear stud welding device according to claim 2, characterized in that: An adjusting block (19) is fixedly connected to the upper surface of the support frame (11), and a fixing box (20) is slidably connected to the outer wall of the adjusting block (19).

6. The steel box girder shear stud welding device according to claim 5, characterized in that: The second motor (21) is fixedly connected inside the fixed box (20), and a threaded rod (22) is fixedly provided at the output end of the second motor (21). The outer wall of the threaded rod (22) is rotatably connected inside the fixed box (20).

7. The steel box girder shear stud welding device according to claim 6, characterized in that: The outer wall of the threaded rod (22) is threadedly connected to the inside of the adjusting block (19), and the lower surface of the fixed box (20) is fixedly connected to the connecting support (23).

8. The steel box girder shear stud welding device according to claim 7, characterized in that: A slider (24) is fixedly connected to the lower surface of the connecting support (23), an electric slide rail (25) is slidably connected to the outer wall of the slider (24), and a base (26) is fixedly connected to the lower surface of the electric slide rail (25).

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