Multi-contact clamping device for laser lap welding of non-planar pieces and laser welding apparatus

The piston assembly and pneumatic system of the multi-contact clamping device achieve stable clamping and precise positioning of non-planar components made of dissimilar materials, solving the problems of poor clamping stability and low positioning accuracy in the prior art, and improving welding quality and efficiency.

CN224475717UActive Publication Date: 2026-07-10PKU HKUST SHENZHEN HONGKONG INSTITUTION
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PKU HKUST SHENZHEN HONGKONG INSTITUTION
Filing Date
2025-07-25
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing laser joining technology suffers from poor clamping stability and low positioning accuracy in welding dissimilar materials, resulting in low welding quality and low production efficiency.

Method used

A multi-contact clamping device is adopted, which drives the clamping contacts to fix the workpiece at multiple points through the piston assembly and air circuit system in the upper and lower housings. It adapts to the adaptive adjustment of workpieces with complex shapes and ensures the stable position and posture of the workpiece during the laser connection process.

Benefits of technology

It enables stable clamping and precise positioning of non-planar components made of dissimilar materials, improving welding quality and production efficiency, and expanding the application scope of laser joining technology.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224475717U_ABST
    Figure CN224475717U_ABST
Patent Text Reader

Abstract

This utility model discloses a multi-contact clamping device and laser welding equipment for laser lap welding of non-planar parts. The multi-contact clamping device includes an upper housing and a lower housing. Multiple upper piston assemblies, each including an upper clamping contact, are housed inside the upper housing. An upper air passage system, connected to the upper piston assemblies, is also located inside the lower housing. Multiple lower piston assemblies, each including a lower clamping contact, are housed inside the lower housing. A lower air passage system, connected to the lower piston assemblies, is also located inside the lower housing. The laser welding equipment includes the aforementioned multi-contact clamping device for laser lap welding of non-planar parts. This multi-contact clamping device and laser welding equipment for laser lap welding of non-planar parts have advantages such as simple structure, low implementation difficulty, low implementation cost, high versatility, good clamping stability, and high clamping accuracy. In practical applications, they can effectively improve welding quality.
Need to check novelty before this filing date? Find Prior Art