基于激光视觉传感的角焊缝外形尺寸检测

针对目前角焊缝外形尺寸手工检测的缺点,采用了一种基于激光视觉传感的角焊缝外形尺寸检测方法.该方法利用基于三角形测量原理的激光传感器,采集反映焊缝几何形状特征的激光条纹图像,利用中值滤波、二值化、中心线提取以及特征识别等算法,从而获得了角焊缝的外形尺寸信息.结果表明,与传统的手工检测方法相比,该方法具有检测准确度高、可靠性好、耗时短、检测内容丰富、使用方便等特点,并且消除了人为主观判断的影响.此外,检测的数据可长久保存在计算机中,便于后续的统计分析.

Inspection of fillet weld shape dimension based on laser vision sensing

In order to overcome the limitations of fillet weld shape dimension by manual inspection, an inspection method based on laser vision sensing is adopted.Firstly, a laser stripe image is acquired with a laser vision sensor based on principles of optical triangulation. Then the acquired laser stripe image is processed by medium filter, binary processing, laser stripe centerline extraction, and feature recognition algorithms.At last, the information about weld shape dimension is obtained.The experiments show that compared with manual inspection method, the method is much more accurate and reliable to inspect, convenient to use, and the inspection time is greatly shortened, the inspection items are increased obviously, the difference depending on user can be eliminated, and inspection data can be saved in PC.