激光切割钣金件孔径的视觉检测系统研究

发布时间：2018-09-09 08:40

【摘要】：随着激光切割行业的快速发展,生产对激光切割钣金件孔径的检测环节已经提出了新的要求。目前对激光切割钣金孔径的检测都是通过检具来完成的,并且大都是通过人工抽样检测完成的。检具的使用不仅提高了生产成本,而且还浪费时间和人力,同时降低了工件成品率的可靠性,这严重制约着着激光切割行业的发展。本文在参考国内外研究现状的基础上,根据工厂企业的需求,对激光切割的钣金件孔径视觉检测系统展开了研究。本文首先对图像处理中各类算法进行了研究。然后搭建尺寸检测平台,把工业相机采集到的图像经过图像采集卡传到计算机中,利用LabVIEW及其视觉开发软件包IMAQ Vision进行图像处理和孔径检测,最后把检测的结果显示在检测界面中,以判断工件是否合格。本文通过实验验证,基于LabVIEW视觉检测系统的开发不仅达到了检测的目的,还提高了检测效率,满足了实际生产的需求。
[Abstract]:With the rapid development of laser cutting industry, new requirements have been put forward for measuring the aperture of laser cutting sheet metal parts. At present, the detection of laser cutting sheet metal aperture is accomplished by testing tools, and most of them are completed by manual sampling. The use of inspection tools not only increases the production cost, but also wastes time and manpower, and reduces the reliability of the finished product rate of the workpiece, which seriously restricts the development of laser cutting industry. In this paper, based on the domestic and international research status, according to the needs of the factory enterprises, the laser cutting of sheet metal aperture vision detection system has been studied. In this paper, all kinds of algorithms in image processing are studied. Then the size detection platform is built and the image collected by industrial camera is transmitted to the computer through the image acquisition card. The image processing and aperture detection are carried out by using LabVIEW and its visual development software package IMAQ Vision. Finally, the test results are displayed in the detection interface to determine whether the workpiece is up to standard. The development of visual inspection system based on LabVIEW not only achieves the purpose of detection, but also improves the efficiency of detection and meets the demand of actual production.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG487;TP391.41

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