激光修复金属表面缺陷检测系统研究与开发

Research and Development of Laser Repairing Metal Surface Defect Detection System

针对激光修复金属表面缺陷,基于LabVIEW和Arduino编程语言开发了一套图像和视频采集及距离检测系统。该系统可以实现对金属表面裂纹缺陷的检测、修复过程中熔池图像的采集和保存、激光修复表面裂纹过程熔池变化的视频文件存储、激光头喷嘴到待修复工件表面距离的检测和数据存储以及距离超程报警等功能。介绍了系统的硬件结构、软件设计以及功能控制系统的具体实现方法。实验结果表明,检测系统可以高质量地实现图像及视频的采集存储、实时的距离检测和超程报警,极大地提高了修复的效率。

For repairing metal surface defects by laser,a set of image and video acquisition and distance detection systems were developed based on LabVIEW and Arduino programming languages.The system can realize the detection of crack defects on the metal surface,the collection and storage of molten pool images during the repair process,the collection and storage of video files of the molten pool changes during the laser repair of surface cracks,and the detection of the distance from the nozzle of the laser head to the surface of the workpiece to be repaired and data storage and distance over-range alarm.The hardware structure,software design and function control method of the system were introduced.Experimental results show that the system can achieve high-quality image and video acquisition and storage,real-time distance detection and over-range alarm,which greatly improves the efficiency of repair.