机电工程技术2025，Vol.54Issue(12)：47-51,149,6.DOI:10.3969/j.issn.1009-9492.2025.12.005
基于被动视觉的TIG焊缝跟踪系统设计
Design of a Passive Vision-based TIG Weld Seam Tracking System
摘要
Abstract
In the pipeline network renovation projects of western China,the artificial backing welding method for 2 420 mm-diameter nickel-based alloy pipes during all-position welding exhibits low production efficiency and unstable quality.To address this issue,a passive vision-based TIG welding seam tracking method is proposed.A dedicated passive vision optical acquisition system is designed,through which real-time welding image acquisition and feature extraction are implemented.The groove edge position and torch tip zone are identified as regions of interest for image processing.Edge detection methods are employed to extract and characterize both groove position information and arc horizontal position information from welding images.Experimental results show that:the proposed image adaptive processing algorithm effectively enhances the original image grayscale average value,with the grayscale difference between internal and external groove areas being increased from 60 to 150;the established welding seam tracking system successfully acquires tungsten electrode positions during both backing and filling welding processes;through preset deviation tests,the tungsten electrode alignment is verified to be controlled within±0.5 mm range.关键词
焊缝跟踪/TIG焊/图像采集/被动视觉Key words
weld seam tracking/TIG welding/image acquisition/passive vision分类
矿业与冶金引用本文复制引用
朱启龙,马文学,陈星,任志鹏,马强,朱明..基于被动视觉的TIG焊缝跟踪系统设计[J].机电工程技术,2025,54(12):47-51,149,6.基金项目
国家自然科学基金(52065041) （52065041）
甘肃省教育厅"双一流"科研重点(GSSYLXM-03) （GSSYLXM-03）
