摘要本文针对等离子弧焊接过程,分析电弧光谱特点,采用了弧焊熔池视觉传感方法。用CCD摄像机、复合滤光系统、图像采集卡和计算机等建立了一套熔池视觉检测系统。该系统可以利用近红外CCD摄像机配合复合滤光系统消除弧光干扰从熔池后方采集焊接熔池图像。
分析铝合金和不锈钢的等离子弧焊接特性确定了相应的焊接参数,并针对铝合金和不锈钢等离子弧焊,分别采用650nm和430nm窄带滤光片组成的复合滤光系统采集等离子弧焊熔池图像。通过改变焊接工艺参数及图像采集系统参数,观察熔池图像的变化,总结分析熔池图像的影响因素。8526
关键词 等离子弧焊 熔池图像 图像采集系统 复合滤光系统
毕业设计说明书(论文)外文摘要
Title Plasma welding pool image acquisition system design and the experimental research
Abstract
In view of the plasma arc solder process, this article analyses arc spectrum characteristics and use the arc welding pool vision sensing method. CCD camera, the compound filter system, image acquisition card and computer has established a set of molten pool visual inspection system. This system can make use of near infrared CCD camera with compound filter system to eliminate arc welding pool rear acquisition from interference welding pool image.
By means of Analysis of the aluminum and stainless steel plasma arc welding, we determine the characteristics of the corresponding welding parameters. In the light of the aluminum and stainless steel plasma arc welding, the 650 nm and 430 nm narrowband filter composition respectively compound filter system collecting plasma arc welding pool image. By changing the welding process parameters and image acquisition system parameters, observe the change of molten pool image, summarizes and analyzes the influence factors of molten pool image.
Keywords Plasma arc welding Molten pool image Image acquisition system Compound filter system
目 录