A welding device for machining of aeronautical mechanical fittings

By combining the base, support adjustment components, and semi-circular welding guide structure, the stability problem of welding torch angle and distance during the welding process of irregularly shaped exhaust muffler pipe assembly is solved, achieving stable circumferential welding and adapting to the welding requirements of complex spatial structures.

CN122425404APending Publication Date: 2026-07-21SHENYANG TONGLI MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG TONGLI MASCH MFG CO LTD
Filing Date
2026-06-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the welding process of aerospace irregular exhaust muffler assemblies, it is difficult to maintain a stable welding torch angle and distance, resulting in uneven welds, local lack of fusion, and unstable arc start and end positions. In addition, the operation relies heavily on manual experience.

Method used

The device employs a combination of a base, support adjustment assembly, semi-circular welding guide structure, and welding torch. The position and angle of the welding torch are adjusted through a slide bar, universal joint, and positioning locking assembly. A stable arc-shaped motion path is formed by an arc-shaped guide rail and a drive assembly to achieve circumferential welding.

Benefits of technology

It reduces the welding difficulty of irregularly shaped exhaust muffler assemblies, improves welding stability and adaptability, reduces the risk of welding deformation and displacement, and adapts to the welding requirements of complex spatial structures.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122425404A_ABST
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Abstract

The application discloses a machining and welding device for aviation mechanical fittings and relates to the technical field of welding equipment.The machining and welding device comprises a base, two groups of supporting and adjusting assemblies, two groups of half-ring type welding guide structures and two welding guns.The two groups of supporting and adjusting assemblies are respectively slidably connected with the slide bar through the slide sleeves, the two groups of half-ring type welding guide structures can be positionally adjusted according to the interface positions of the to-be-welded pipes, the positions of the supporting and adjusting assemblies can be kept stable after the slide sleeves are locked through the positioning bolts, meanwhile, the half-ring type welding guide structures are connected with the supporting and adjusting assemblies through universal joints, the arc-shaped guide rail seats can be angularly adjusted according to the spatial postures of the to-be-welded interfaces, and the structure can reduce the difficulty of aligning the fixed welding tracks with the special-shaped interfaces, and improve the adaptability of the surrounding welding mechanism to different special-shaped pipe fittings.
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