A U-shaped sheet metal welding head structure for automotive parts

By designing a welding head structure with adjustable spacing and eccentric electrodes, the problem of difficult welding of U-shaped plates was solved, and efficient welding of U-shaped plates of different models was achieved.

CN224424680UActive Publication Date: 2026-06-30CHANGCHUN TAAO JINHUAN AUTOMOBILE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN TAAO JINHUAN AUTOMOBILE PROD CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Welding U-shaped plates in automotive parts is difficult, especially welding small-sized U-shaped openings, and the welding head structure needs to be adapted to different types of U-shaped plates.

Method used

A welding head structure including components such as an upper electrode holder, a lower electrode holder, a mounting block, a connecting block, an adjusting rod, and a spring was designed. The eccentric electrode method and adjustable spacing design facilitate the welding of nuts on the inner wall of U-shaped plates.

Benefits of technology

This technology facilitates projection welding of nuts onto the inner side walls of U-shaped plates, adapting to different opening sizes of U-shaped plates and improving welding efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224424680U_ABST
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Abstract

This utility model relates to the field of automotive parts processing technology and discloses a U-shaped sheet metal welding head structure for automotive parts. This U-shaped sheet metal welding head structure for automotive parts includes an upper electrode seat, a mounting head at the top of the upper electrode seat, and a mounting groove on the inner side of the upper electrode seat. A lower electrode seat is located below the upper electrode seat. This utility model, by setting up an upper electrode head, a lower electrode head, a lower electrode seat, and an upper electrode seat, aligns the lower electrode head at the top of the lower electrode seat with the center of the upper electrode head. One side of the U-shaped sheet metal is attached to the lower electrode head on the lower electrode seat, while the other side is located between the lower electrode seat and the base. The upper electrode head adopts an eccentric electrode method, with its protruding dimension smaller than the groove width of the workpiece being welded. This allows the U-shaped sheet metal to be avoided while ensuring a certain thickness and relatively high strength to meet the welding pressure requirements, thus facilitating nut projection welding on the inner wall of the side of the U-shaped sheet metal.
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