A welding device for steel structure engineering construction

By designing a welding device that transmits processing components and protective components, the problem of unstable arc length when the welding torch is on an uneven workpiece surface was solved, the welding quality was improved and protection was provided, ensuring the safety and accuracy of the welding process.

CN224295049UActive Publication Date: 2026-05-29SHANDONG GUANGLEI STEEL STRUCTURE ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG GUANGLEI STEEL STRUCTURE ENG CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing steel structure welding equipment cannot maintain a constant arc length when the workpiece surface is uneven, resulting in low processing quality and a lack of effective protective measures.

Method used

A welding device including a transmission and processing component and a protective component is designed. The transmission and processing component ensures that the welding torch is in close contact with the workpiece surface and maintains a constant arc length through a spring and a ball structure. The protective component prevents high-temperature damage through a limiting frame and a limiting shield.

Benefits of technology

It achieves stable welding quality when the workpiece surface is uneven, ensures a constant arc length, and provides effective protective measures to avoid high-temperature welding damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel structure engineering construction, and disclose a kind of welding device for steel structure engineering construction, including base, the top of base is provided with connecting platform, the inside of connecting platform is close to top and is provided with placing horizontal table, the top of connecting platform is provided with transmission processing assembly, the surface right side of transmission processing assembly is provided with protection assembly, transmission processing assembly includes connecting frame, and the top of connecting platform is fixedly connected to connecting frame.This welding device for steel structure engineering construction is provided with transmission processing assembly, and welding head is contacted with the top of workpiece when moving, cooperates spring piece and rotatable spring piece, can swing bottom end supporting block, spring pressure makes welding torch tip always close to workpiece surface, when workpiece surface is uneven, spring compression changes, cooperates limit ring piece and slide ball, drives welding torch up and down fine adjustment, keeps constant arc length, ensures processing quality.
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Description

Technical Field

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

[0002] In modern architecture, bridges, energy equipment and other engineering fields, steel structures have become the core structural form due to their advantages such as high strength, lightweight, and short construction period. From super high-rise buildings to cross-river bridges, from wind turbine towers to offshore platforms, the reliability of steel structures directly depends on welding quality—as a key process in steel structure connection, welding strength, precision and defect control directly affect the structural safety life.

[0003] The prior art discloses a welding device for steel structure construction, with publication number CN222492843U. The device includes a base plate, movable plates movably mounted on both sides of the top of the base plate, cover plates hinged to the top of each movable plate, and fixed plates fixedly mounted on both sides of the top of each movable plate. A circular shaft is rotatably mounted between the fixed plates, with rotating rods fixedly sleeved at both ends of the circular shaft. Moving rods are hinged between the rotating rods and the cover plates, and gears are fixedly sleeved on the surface of the circular shaft. In this welding device for steel structure construction, the operator places the steel structure inside a fixed groove and then activates a pneumatic cylinder. The operation of the pneumatic cylinder causes the push plate to slide, which in turn drives the rack to slide, causing the rack to rotate and drive the gear to rotate.

[0004] The aforementioned welding device for steel structure construction can drive a circular shaft to rotate between two fixed plates, which in turn drives a rotating rod to rotate, thereby driving a moving rod to rotate, thus adjusting the position of the cover plate. However, during the welding process, when the workpiece surface is uneven, the welding torch tip cannot always be kept in close contact with the workpiece surface, and a constant arc length cannot be maintained, resulting in low processing quality and poor performance in use. Improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a welding device for steel structure engineering construction 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 device for steel structure engineering construction, including a base, a connecting platform at the top of the base, a placement platform near the top of the connecting platform, a transmission and processing component at the top of the connecting platform, and a protective component on the right side of the surface of the transmission and processing component.

[0007] The transmission and processing assembly includes a connecting frame, which is fixedly connected to the top of the connecting platform. A support rod is fixedly connected to the top of the connecting frame. A U-shaped frame is fixedly connected to the top right of the placing platform. A placing block is fixedly connected to the right inside of the U-shaped frame. A drive motor is fixedly connected to the left side of the placing block. A screw is fixedly connected to the output shaft of the drive motor. A threaded sleeve is threaded onto the surface of the screw. A placing plate is fixedly connected to the bottom of the threaded sleeve. A limiting frame is fixedly connected to the top of the placing plate. A rectangular groove is formed inside the placing plate. A limiting ring is fixedly connected to the right inside of the limiting frame. A slider is slidably connected inside the limiting ring. The left side of the slider is slidably connected to the left side of the limiting frame. A spring is fixedly connected to the top of the limiting frame. A connecting block is fixedly connected to the top of the spring.

[0008] Preferably, the protective component includes a limiting frame, a limiting shielding plate, and a limiting slide bar. The limiting frame is fixedly connected to the front and back of the U-shaped frame, and the limiting slide bar is fixedly connected to the front of the limiting shielding plate.

[0009] Preferably, the limiting frame has a sliding groove inside, and the area of ​​the sliding groove is equal to the sum of the side areas of the limiting sliding strip and the limiting shielding plate.

[0010] Preferably, the limiting slider is slidably connected to the inner front surface of the limiting frame.

[0011] Preferably, a bearing is fixedly connected to the top right side of the support rod, and the screw is fixedly connected to the inner ring of the bearing. The bearing allows the screw to rotate smoothly, ensuring the normal use of the device.

[0012] Preferably, the top of the slider is connected to a protrusion, the top of the protrusion is connected to the bottom of the connecting block, the bottom of the protrusion is fixedly connected to a bottom support block, and the bottom of the bottom support block is fixedly connected to a welding head.

[0013] Preferably, a limiting slide rod is fixedly connected to the right back side of the support rod, and a through groove is provided inside the threaded sleeve. The diameter of the through groove is adapted to the diameter of the limiting slide rod. The threaded sleeve is slidably connected to the surface of the limiting slide rod, and the limiting slide rod limits the sliding of the threaded sleeve to ensure that it can move laterally instead of spinning freely.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The welding device used in this steel structure construction project is equipped with a transmission and processing component. When moving, the welding head must contact the top of the workpiece. With the help of spring components and a rotatable spring component, the bottom support block can swing. The spring pressure keeps the tip of the welding torch in close contact with the workpiece surface. When the workpiece surface is uneven, the spring compression changes. With the help of the limiting ring component and the slider, the welding torch is driven to make fine adjustments up and down to maintain a constant arc length and ensure processing quality.

[0016] 2. The welding device used in this steel structure construction project is equipped with protective components. When in use, the limiting shielding protective plate and the limiting frame can be aligned with the side of the limiting frame and inserted. Then, it can be pulled to the left to cover the position between the two workpieces, which can provide shielding protection and avoid damage caused by the high temperature during welding, thus playing a protective role. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the transmission and processing component of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Base; 2. Connecting platform; 3. Transmission and processing assembly; 301. Connecting frame; 302. Support rod; 303. Threaded sleeve; 304. Screw; 305. Placement U-shaped frame; 306. Drive motor; 307. Placement plate; 308. Connecting block; 309. Limiting frame plate; 310. Limiting ring; 311. Sliding ball; 312. Spring; 313. Bottom support block; 314. Welding head; 4. Protective assembly; 401. Limiting frame; 402. Limiting shielding protective plate; 403. Limiting slide bar; 5. Placement platform. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4The present invention provides the following technical solution:

[0024] A welding device for steel structure construction includes a base 1, a connecting platform 2 on the top of the base 1, a placement platform 5 near the top of the connecting platform 2, a transmission and processing component 3 on the top of the connecting platform 2, and a protective component 4 on the right side of the surface of the transmission and processing component 3.

[0025] The transfer processing assembly 3 includes a connecting frame 301, which is fixedly connected to the top of the connecting platform 2. A support rod 302 is fixedly connected to the top of the connecting frame 301. A U-shaped frame 305 is fixedly connected to the top right of the placing platform 5. A placing block is fixedly connected to the right inside of the placing U-shaped frame 305. A drive motor 306 is fixedly connected to the left side of the placing block. A screw 304 is fixedly connected to the output shaft of the drive motor 306. A threaded sleeve 303 is threaded onto the surface of the screw 304. A placing plate 307 is fixedly connected to the bottom of the threaded sleeve 303. A limiting frame plate 309 is fixedly connected to the top of the placing plate 307. A rectangular groove is formed inside the placing plate 307. A limiting ring 310 is fixedly connected to the right inside of the limiting frame plate 309. A ball 311 is slidably connected inside the limiting ring 310. The left side of the ball 311 is slidably connected to the limiting frame plate. On the left side inside 309, a spring 312 is fixedly connected to the top of the limiting frame plate 309, and a connecting block 308 is fixedly connected to the top of the spring 312. A limiting slide rod is fixedly connected to the back right side of the support rod 302. A through groove is opened inside the threaded sleeve 303, and the diameter of the through groove is adapted to the diameter of the limiting slide rod. The threaded sleeve 303 is slidably connected to the surface of the limiting slide rod. The limiting slide rod limits the sliding of the threaded sleeve 303 to ensure that it can move laterally instead of spinning freely. A bearing is fixedly connected to the top right side of the support rod 302. A screw 304 is fixedly connected to the inner ring of the bearing. The bearing allows the screw 304 to rotate smoothly, ensuring the normal use of the device. A protrusion is connected to the top of the ball 311. The top of the protrusion is connected to the bottom of the connecting block 308. A bottom support block 313 is fixedly connected to the bottom of the protrusion. A welding head 314 is fixedly connected to the bottom of the bottom support block 313.

[0026] The protective component 4 includes a limiting frame 401, a limiting shielding plate 402, and a limiting slide bar 403. The limiting frame 401 is fixedly connected to the front and back of the U-shaped frame 305. The limiting slide bar 403 is fixedly connected to the front of the limiting shielding plate 402. The limiting frame 401 has a groove inside. The area of ​​the groove is equal to the sum of the side areas of the limiting slide bar 403 and the limiting shielding plate 402. The limiting slide bar 403 is slidably connected to the inside front of the limiting frame 401.

[0027] In use, the structure to be welded is placed on top of the placement platform 5. The steel structure near the right side should be attached to the left side of the placement U-shaped frame 305. Then, the left side of the steel structure can be attached to the top of the placement platform 5 and moved towards the right side, positioning the contact point at the preset point. The drive motor 306 is then activated to rotate the screw 304, causing the threaded sleeve 303 to slide to the right against the surface of the screw 304. This sliding continues until the welding head 314 is at the top of the processing point. During this movement, the welding head 314 must contact the top of the workpiece, cooperating with the spring. The component 312 and the rotatable spring component 312 allow the bottom support block 313 to swing. The spring pressure keeps the tip of the welding torch in close contact with the surface of the workpiece. When the surface of the workpiece is uneven, the spring compression changes. In conjunction with the limiting ring component 310 and the slider 311, the welding torch is driven to make fine adjustments up and down to maintain a constant arc length and ensure processing quality. When in use, the limiting shielding plate 402 and the limiting frame 401 can be aligned with the side of the limiting frame 401 and then inserted. Then, it can be pulled to the left to cover the position between the two workpieces, which can provide shielding protection and avoid damage caused by the high temperature during welding, thus playing a protective role.

[0028] 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 the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for steel structure construction, comprising a base (1), characterized in that: The base (1) is provided with a connecting platform (2) at the top. A horizontal platform (5) is provided inside the connecting platform (2) near the top. A transmission processing component (3) is provided at the top of the connecting platform (2). A protective component (4) is provided on the right side of the surface of the transmission processing component (3). The transmission processing component (3) includes a connecting frame (301), which is fixedly connected to the top of the connecting platform (2). A support rod (302) is fixedly connected to the top of the connecting frame (301). A U-shaped frame (305) is fixedly connected to the top right side of the placing platform (5). A placing block is fixedly connected to the right side of the placing U-shaped frame (305). A drive motor component (306) is fixedly connected to the left side of the placing block. A screw (304) is fixedly connected to the output shaft of the drive motor component (306). A threaded sleeve (303) is threadedly connected to the surface of the screw (304). (303) has a fixed plate (307) at the bottom and a limiting frame plate (309) at the top. The placement plate (307) has a rectangular sliding groove inside. The limiting frame plate (309) has a fixed ring (310) on the right side inside. The limiting ring (310) has a sliding ball (311) inside. The left side of the sliding ball (311) is slidably connected to the left side inside the limiting frame plate (309). The limiting frame plate (309) has a fixed spring (312) at the top and a connecting block (308) at the top.

2. The welding device for steel structure construction according to claim 1, characterized in that: The protective component (4) includes a limiting frame (401), a limiting shielding plate (402), and a limiting slide (403). The limiting frame (401) is fixedly connected to the front and back of the U-shaped frame (305), and the limiting slide (403) is fixedly connected to the front of the limiting shielding plate (402).

3. The welding device for steel structure construction according to claim 2, characterized in that: The limiting frame (401) has a sliding groove inside, and the area of ​​the sliding groove is equal to the sum of the side areas of the limiting slide bar (403) and the limiting shielding plate (402).

4. The welding device for steel structure construction according to claim 2, characterized in that: The limiting slider (403) is slidably connected to the inner front of the limiting frame (401).

5. The welding device for steel structure construction according to claim 1, characterized in that: A bearing is fixedly connected to the top right side of the support rod (302), and the screw (304) is fixedly connected to the inner ring of the bearing.

6. The welding device for steel structure construction according to claim 1, characterized in that: The top of the slider (311) is connected to a protrusion, the top of the protrusion is connected to the bottom of the connecting block (308), the bottom of the protrusion is fixedly connected to a bottom support block (313), and the bottom of the bottom support block (313) is fixedly connected to a welding head (314).

7. The welding device for steel structure construction according to claim 1, characterized in that: The right side of the support rod (302) is fixedly connected to a limiting slide rod. The threaded sleeve (303) has a through groove inside, the diameter of which is adapted to the diameter of the limiting slide rod. The threaded sleeve (303) is slidably connected to the surface of the limiting slide rod.