Steel welding device for bridge construction

By designing an automated steel welding device, the problems of cumbersome and unstable steel welding operations in bridge construction were solved, thereby improving the stability and strength of steel welding.

CN224309888UActive Publication Date: 2026-06-02葫芦岛市交通运输综合行政执法队

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
葫芦岛市交通运输综合行政执法队
Filing Date
2025-04-29
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In current bridge construction, steel welding mainly relies on manual operation, which is cumbersome and cannot effectively fix cylindrical steel, leading to accidental rotation of the steel during the welding process and affecting the overall strength.

Method used

Design a steel welding device that includes a base plate, mounting frame, fixed welding structure, adjustable support structure and pressing component. Utilize components such as electric push rods, linear slides and drive motors to achieve automated fixing and synchronous rotation of steel, adapting to the welding needs of steel of different specifications.

Benefits of technology

It has achieved automation and stability in steel welding, improved welding strength, reduced the tediousness of manual operation, and ensured the stability and overall strength of steel during the welding process.

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Abstract

This utility model discloses a steel welding device for bridge construction in the field of steel welding technology. It includes a base plate, an mounting frame installed on one upper side of the base plate, and a fixed welding structure installed on the side wall of the mounting frame. The fixed welding structure includes two first linear slides, a movable plate, an electric push rod, a welding seat, two second linear slides, and a pressing component. The fixed welding structure used in this invention allows for sufficient adjustment of the welding machine on one side of the welding seat during steel welding, through the cooperation of the first linear slides and the electric push rod. This is suitable for welding steel of different specifications. The adjustable support structure, in conjunction with the pressing component, can achieve sufficient fixation of cylindrical steel.
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Description

Technical Field

[0001] This utility model relates to the field of steel welding technology, specifically a steel welding device for bridge construction. Background Technology

[0002] Steel welding is a crucial construction technique in bridge construction, ensuring the integrity and stability of the bridge structure. The quality of the welding directly affects the safety and service life of the bridge.

[0003] Currently, most steel welding in bridge construction is done manually, requiring multiple people to place the steel to be welded in the designated position before manual welding. This process is cumbersome, and with cylindrical steel, it is difficult to secure it properly. This can easily lead to accidental rotation of the steel during welding, affecting the overall strength of the weld. Therefore, a new technical solution needs to be designed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a steel welding device for bridge construction, in order to solve the problem mentioned in the background art that the existing steel welding device for bridge construction mostly adopts manual operation when using it. It requires multiple people to cooperate in placing the steel to be welded in a designated position and then manually welding it. The operation is relatively cumbersome, and when dealing with cylindrical steel, it is impossible to fix the steel sufficiently. During the welding process, the steel is prone to accidental rotation, which affects the overall strength of the weld.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel welding device for bridge construction, comprising a base plate, an mounting frame installed on one upper side of the base plate, and a fixed welding structure installed on the side wall of the mounting frame, the fixed welding structure comprising two first linear slides, a movable plate, an electric push rod, a welding seat, two second linear slides, and a pressing component;

[0006] Two first linear slides are respectively installed on both sides of the rear wall of the mounting frame. The two ends of the movable plate are respectively movably fitted into the inner walls of both sides of the mounting frame. The electric push rod is embedded in the movable plate. The welding seat is fixedly installed on the telescopic end of the electric push rod. Two second linear slides are respectively installed on both sides of the front end of the mounting frame. The pressing assembly is installed on the driving end of the two second linear slides.

[0007] As a preferred embodiment of the steel welding device for bridge construction according to this utility model, the pressing assembly includes: two drive frames, two drive wheels, and two drive motors;

[0008] The two drive frames are respectively mounted on the two drive ends of the second linear slides, the two drive wheels are respectively embedded in the two drive frames, and the two drive motors are respectively mounted on the side walls of the two drive frames, with their drive ends respectively connected to the two drive wheels.

[0009] As a preferred embodiment of the steel welding device for bridge construction according to this utility model, the upper end of the base plate is provided with an adjusting support structure, which includes four support plates, several sliding rods, eight movable frames, eight support wheels and several positioning bolts.

[0010] All four support plates are installed on the upper part of the base plate, and several sliding rods are respectively installed on both sides of the four support plates. Eight movable frames are respectively movably fitted on both sides of the upper part of the four support plates and respectively movably fitted on the upper ends of several sliding rods. Eight support wheels are respectively embedded in the eight movable frames, and several positioning bolts are respectively movably embedded in the side walls of the eight movable frames.

[0011] In a preferred embodiment of this utility model, a steel welding device for bridge construction, the electric push rod is inclinedly embedded within the movable plate.

[0012] As a preferred embodiment of the steel welding device for bridge construction according to this utility model, the movable frame is "H" shaped.

[0013] As a preferred embodiment of the steel welding device for bridge construction according to this utility model, the lower end of the mobile frame is provided with sliding grooves on both inner side walls.

[0014] As a preferred embodiment of the steel welding device for bridge construction according to this utility model, a fixing frame is provided at the connection between the drive motor and the drive frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the steel welding device for bridge construction has a reasonable structural design;

[0016] 1. The fixed welding structure adopted in this case allows for full adjustment of the welding machine on one side of the welding seat by using the first linear slide table in conjunction with the electric push rod when welding steel, making it suitable for welding steel of different specifications.

[0017] 2. The adjustable support structure, in conjunction with the pressing component, can fully fix the cylindrical steel and adjust the support according to different specifications of steel. This ensures the stability of steel welding, allows for stable rotation of the steel, and guarantees the synchronous rotation of the two steel sections, further increasing the overall welding strength of the steel. Attached Figure Description

[0018] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a side sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure at point A of this utility model.

[0022] In the diagram: 1. Base plate, 2. Mounting bracket, 3. First linear slide, 4. Moving plate, 5. Electric push rod, 6. Welding seat, 7. Second linear slide, 8. Drive frame, 9. Drive wheel, 10. Drive motor, 11. Support plate, 12. Slide rod, 13. Moving frame, 14. Support wheel, 15. Positioning bolt, 16. Fixed frame. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] In this technical solution, a steel welding device for bridge construction includes a base plate 1, an mounting frame 2 is installed on one side of the upper end of the base plate 1, and a fixed welding structure is installed on the side wall of the mounting frame 2. The fixed welding structure includes two first linear slides 3, a movable plate 4, an electric push rod 5, a welding seat 6, two second linear slides 7, and a pressing component.

[0026] Two first linear slides 3 are respectively installed on both sides of the rear wall of the mounting frame 2. The two ends of the movable plate 4 are respectively movably fitted into the inner walls of both sides of the mounting frame 2. The electric push rod 5 is embedded in the movable plate 4. The welding seat 6 is fixedly installed on the telescopic end of the electric push rod 5. Two second linear slides 7 are respectively installed on both sides of the front end of the mounting frame 2. The pressing component is installed on the drive end of the two second linear slides 7.

[0027] In this technical solution, when welding steel materials during bridge construction, workers first move the device to a designated position using transport equipment. The device is then supported by a base plate 1. Two cylindrical steel materials to be welded are placed on the upper end of the adjusting support structure. The pressing component at the front end of the mounting frame 2 is then activated to press down and fix the steel materials, and to drive the two steel materials to rotate synchronously. Two first linear slides 3 then adjust the moving plate 4 within the mounting frame 2 to a designated position, adjusting the height of the welding seat 6. An electric push rod 5 then moves the welding machine on one side of the welding seat 6. As the pressing component drives the two steel materials to rotate synchronously, the welding machine performs the welding operation at the joint of the two steel materials.

[0028] In some technical solutions, reference Figure 1 The pressing assembly includes: two drive frames 8, two drive wheels 9, and two drive motors 10;

[0029] Two drive frames 8 are respectively mounted on the drive ends of two second linear slides 7, two drive wheels 9 are respectively embedded in the two drive frames 8, and two drive motors 10 are respectively mounted on the side walls of the two drive frames 8, with their drive ends respectively connected to the two drive wheels 9.

[0030] In this technical solution, when fixing the steel, the two second linear slides 7 on one side of the mounting frame 2 work to lower the two drive wheels 9 in the two drive frames 8 to a specified height until they contact the upper end of the steel, and press down to fix the steel. Then, the two drive motors 10 on one side of the two drive frames 8 work synchronously to drive the two drive wheels 9 to rotate slowly in the two drive frames 8, thereby causing the steel to rotate on the upper end of several support wheels 14.

[0031] In some technical solutions, reference Figure 1 The upper end of the base plate 1 is provided with an adjustable support structure, which includes four support plates 11, several sliding rods 12, eight movable frames 13, eight support wheels 14 and several positioning bolts 15.

[0032] Four support plates 11 are installed on the upper end of the base plate 1. Several sliding rods 12 are installed on both sides of the four support plates 11 respectively. Eight movable frames 13 are movably fitted on both sides of the upper end of the four support plates 11 respectively, and are movably fitted on the upper end of several sliding rods 12 respectively. Eight support wheels 14 are respectively embedded in the eight movable frames 13. Several positioning bolts 15 are movably embedded in the side wall of the eight movable frames 13 respectively.

[0033] In this technical solution, when welding and fixing the steel, the workers first adjust the eight movable frames 13 to the designated positions on the upper ends of the four support plates 11 according to the specifications of the steel. By using the sliding rods 12 and the sliding grooves on the inner side of the movable frames 13, the movement and installation stability of the movable frames 13 can be guaranteed. After moving to the designated position, the movable frames 13 are fixed by several positioning bolts 15. Then, the workers place the steel between the eight support wheels 14 and make the docking position located at the center of the base plate 1, corresponding to the position of the welding machine.

[0034] In some technical solutions, reference Figure 1 The electric push rod 5 is inclinedly embedded in the movable plate 4. The movable frame 13 is "H" shaped. Slide grooves are provided on both sides of the lower end of the movable frame 13. A fixed frame 16 is provided at the connection between the drive motor 10 and the drive frame 8.

[0035] Working Principle: When welding steel in bridge construction, workers first move the device to the designated position using transport equipment. The base plate 1 provides overall support. Based on the steel specifications, eight movable frames 13 are adjusted to the designated positions on the four support plates 11. Several sliding rods 12 engage with the sliding grooves on the inner side of the movable frames 13 to ensure movement and installation stability. After reaching the designated position, the movable frames 13 are fixed with several positioning bolts 15. Then, workers place the steel between the eight support wheels 14, ensuring the mating position is at the center of the base plate 1, corresponding to the welding machine position. Finally, two second... The linear slide 7 operates, lowering the two drive wheels 9 within the two drive frames 8 to a designated height until they contact the upper end of the steel, thus pressing and fixing the steel. Subsequently, the two drive motors 10 on one side of the two drive frames 8 work synchronously, driving the two drive wheels 9 to rotate slowly within the two drive frames 8, thereby causing the steel to rotate on the upper end of several support wheels 14. Then, the two first linear slides 3 operate, adjusting the moving plate 4 within the mounting frame 2 to a designated position, adjusting the height of the welding seat 6. Subsequently, the electric push rod 5 operates, moving the welding machine on one side of the welding seat 6. As the pressing component drives the two steel pieces to rotate synchronously, the welding machine performs welding operations on the butt joint of the two steel pieces.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steel welding device for bridge construction, comprising a base plate (1), characterized in that, A mounting bracket (2) is installed on one side of the upper end of the base plate (1). A fixed welding structure is installed on the side wall of the mounting bracket (2). The fixed welding structure includes two first linear slides (3), a moving plate (4), an electric push rod (5), a welding seat (6), two second linear slides (7), and a pressing component. Two first linear slides (3) are respectively installed on both sides of the rear wall of the mounting frame (2), the two ends of the movable plate (4) are respectively movably fitted into the inner walls of both sides of the mounting frame (2), the electric push rod (5) is embedded in the movable plate (4), the welding seat (6) is fixedly installed on the telescopic end of the electric push rod (5), two second linear slides (7) are respectively installed on both sides of the front end of the mounting frame (2), and the pressing component is installed on the driving end of the two second linear slides (7); The pressing assembly includes: two drive frames (8), two drive wheels (9), and two drive motors (10); the two drive frames (8) are respectively mounted on the drive ends of the two second linear slides (7), the two drive wheels (9) are respectively embedded in the two drive frames (8), and the two drive motors (10) are respectively mounted on the side walls of the two drive frames (8), and their drive ends are respectively connected to the two drive wheels (9); The upper end of the base plate (1) is provided with an adjustable support structure, which includes four support plates (11), several sliding rods (12), eight movable frames (13), eight support wheels (14), and several positioning bolts (15). The four support plates (11) are all installed on the upper end of the base plate (1), the several sliding rods (12) are respectively installed on both sides of the four support plates (11), the eight movable frames (13) are respectively movably fitted on both sides of the upper end of the four support plates (11) and respectively movably fitted on the upper end of the several sliding rods (12), the eight support wheels (14) are respectively embedded in the eight movable frames (13), and the several positioning bolts (15) are respectively movably embedded in the side wall of the eight movable frames (13).

2. The steel welding device for bridge construction according to claim 1, characterized in that, The electric push rod (5) is obliquely embedded in the movable plate (4).

3. The steel welding device for bridge construction according to claim 1, characterized in that, The mobile frame (13) is H-shaped.

4. The steel welding device for bridge construction according to claim 1, characterized in that, The lower inner two sides of the mobile frame (13) are provided with sliding grooves.

5. A steel welding device for bridge construction according to claim 1, characterized in that, A fixing frame (16) is provided at the connection between the drive motor (10) and the drive frame (8).