基于激光跟踪的免清根焊接自适应控制系统
By using a front-mounted laser scanner and a pose calculation unit in the welding system to calculate the attitude adjustment of the welding torch, the problem of unbalanced distribution of welding arc heat input in the prior art is solved, and the stability and consistency of weld formation are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PENGLAI JUTAL OFFSHORE ENG HEAVY IND CO LTD
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing laser tracking systems for rootless welding suffer from an imbalance in heat input distribution within the bevel section when faced with assembly misalignment or sudden changes in root gap. This time delay between the sensor measurement point and the actual welding arc action point prevents the synchronous adjustment of the arc posture, leading to unstable weld re-forming.
A front-mounted laser scanner is used to acquire the bevel misalignment and root gap sequence. The change rate is calculated by time-domain sliding window filtering through the pose calculation unit. Combined with the welding torch attitude dynamics model, the lateral offset, height offset, working angle and oscillation frequency adjustment are calculated. The multi-axis motion controller drives the welding torch to perform translation and rotation. The welding power supply adjusts the welding torch oscillation frequency to achieve the attitude adjustment of the arc within the bevel section.
The composite action is completed before the welding arc reaches the misalignment or gap abrupt change area, maintaining a stable arc heat input distribution, avoiding heat input imbalance, and improving the stability and consistency of weld formation.
Smart Images
Figure CN122184720B_ABST