Proceedings ArticleDOI
Image Processing and Visual Control Method for Arc Welding Robot
De Xu,Linkun Wang,Min Tan +2 more
- pp 727-732
TLDR
A novel hybrid visual servo control method for arc welding robot is provided, in which the position-based and image-based visual Servo method are integrated to increase the robustness of weld seam tracking.Abstract:
The methods to improve the robustness and adaptability of arc welding robots are presented. Image processing algorithm for feature extraction from structured light images of weld seam is discussed in the case of a large amount of strong reflection, arc light and splash disturbance. The processes consist of defining target region, selecting adaptive threshold and extracting feature points. Then a novel hybrid visual servo control method for arc welding robot is provided, in which the position-based and image-based visual servo method are integrated to increase the robustness of weld seam tracking. The welding experiment is well conducted to verify the methodsread more
Citations
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Journal ArticleDOI
Welding seam profiling techniques based on active vision sensing for intelligent robotic welding
TL;DR: In this article, a review, analysis and categorisation of the proposed vision-based techniques with the aim of covering the different image processing and feature extraction aspect of the techniques is presented.
Journal ArticleDOI
Visual seam tracking system for butt weld of thin plate
Zaojun Fang,De Xu,Min Tan +2 more
TL;DR: In this paper, an image-based visual seam tracking system is designed for butt weld of thin plate in which the torch deviation from the joint in the horizontal direction is measured from the seam image since the weld seam is so narrow, its image is based on natural lighting.
Journal ArticleDOI
A robust butt welding seam finding technique for intelligent robotic welding system using active laser vision
TL;DR: In this paper, the seam geometrical properties from a low-quality laser image captured without the conventional narrow band filter are extracted by a sequential image processing and feature extraction algorithm.
Journal ArticleDOI
Review of current waveform control effects on weld geometry in gas metal arc welding process
TL;DR: In this paper, the effects of welding parameters on welded joint geometry are determined and the effect of these parameters on welding joint geometry is analyzed in a controlled short-circuit gas metal arc welding (CS-GMAW).
Journal ArticleDOI
Online visual quality inspection for weld seams.
TL;DR: In this paper, a flexible vision-based quality management system is presented to detect defects online during the arc welding process, which uses a single camera on the weld arms to observe the newly welded seam behind the weld head.
References
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