A welding robot for automobile parts processing

By combining helical spring plates and rotating components, the problems of unstable positioning and welding misalignment in existing welding robots on bent pipe structures are solved, enabling precise clamping and efficient full-circumference welding of bent pipe workpieces, thus improving welding quality and equipment automation level.

CN122400974APending Publication Date: 2026-07-17JIANGSU LIZHIDA INTELLIGENT MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU LIZHIDA INTELLIGENT MANUFACTURING CO LTD
Filing Date
2026-04-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing automotive parts welding robots suffer from poor adaptability, unstable positioning, and easy misalignment in workpiece positioning and welding coordination. In particular, they are difficult to achieve high-precision and high-efficiency welding for hollow structures such as bent pipes.

Method used

The flexible clamping structure using helical spring sheets, combined with an elastic connecting layer and a friction layer, enables precise clamping and positioning of workpieces of different shapes. Full-circumference welding is achieved with the assistance of a rotating component and a vision system, ensuring welding accuracy and efficiency.

Benefits of technology

It achieves stable clamping of workpieces of different shapes, such as bent pipes, avoids welding misalignment, improves welding accuracy and efficiency, protects the surface quality of workpieces, and enhances the stability of automated operation of the equipment.

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Abstract

本发明公开了一种汽车零部件加工用焊接机器人,包括加工台,加工台上设置有机械臂主体,机械臂主体上设置有焊接装置主体,加工台上对称设置有螺旋弹簧片,移动组件上设置有转动组件,转动组件与螺旋弹簧片相连接,转动组件用于带动夹紧定位后的焊接工件轴向转动。本发明的螺旋弹簧片采用可锁定柔性结构,配合弹性连接层,可灵活插入直筒、弯管等不同形状的焊接工件内部,并沿工件内壁适配变形,完美贴合弯管内壁实现稳定夹持,有效解决汽车排气管弯管处夹持不便、焊接易转动偏移的痛点,实现不同规格、不同形状中空焊接工件的精准夹紧定位,适配性强;同时确保两组工件对接同轴度,提升定位精度,避免焊接错位。
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