Unilateral resistance welding device for metal-composite material continuous path welding

CN121892813APending Publication Date: 2026-04-21ZHEJIANG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional coaxial single-sided resistance spot welding electrodes cannot achieve continuous weld seam welding and welding of uneven surface morphology, making it difficult to meet the processing requirements of special structures.

Method used

The single-sided resistance welding device, which uses a piston damping mechanism and an eccentric bearing, achieves continuous weld seam welding through the rolling cooperation between the electrode wheel and the connecting shaft assembly. It also adapts to uneven welding material surfaces with the help of damping springs and elastic buffer design, and ensures the stability and safety of welding by combining a positioning pin structure and insulating gaskets.

Benefits of technology

It enables continuous weld seam welding of metal-composite materials and welding of uneven surfaces, ensuring the fit, pressure stability and insulation safety of the welding process, and improving welding efficiency and quality.

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Abstract

The invention relates to a unilateral resistance welding device for continuous path welding of a metal-composite material. The coaxial unilateral resistance spot-welding electrode solves the problems that in the prior art, a coaxial unilateral resistance spot-welding electrode cannot achieve continuous welding seam welding in actual production, and welding materials with uneven surface appearance cannot be welded. The device comprises a piston damping mechanism, a bearing connecting piece is arranged at one end of the piston damping mechanism, the bearing connecting piece and the piston damping mechanism are connected through a fixed connecting assembly, an eccentric bearing is embedded in the bearing connecting piece, a connecting shaft assembly is arranged in the eccentric bearing in a penetrating mode, and the two ends of the connecting shaft assembly are connected with electrode wheels through positioning pin structures. The single-side continuous welding device has the advantages that the fitting degree and the pressure stability in the welding process can be effectively ensured, and efficient single-side continuous welding operation of the metal-composite material is achieved.
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