基于CCD视觉传感的铝合金熔透自动控制技术及其在航天贮箱中的应用  

Full Penetration Automatic Control of Al Alloy based on CCD Sensing System and Its Application in Aerospace Tank

作　　者：赵衍华[1] 王溶溶[2] 张芹梅 迟宏波[1] 田志杰[1] 张广军[2] 

机构地区：[1]首都航天机械公司,北京100076 [2]哈尔滨工业大学电子与信息工程学院,哈尔滨150001

出　　处：《航天制造技术》2015年第3期1-3,7,共4页Aerospace Manufacturing Technology

摘　　要：设计了基于CCD视觉传感的焊缝背面熔宽控制系统,获得了清晰的焊缝背面图像,通过图像处理提取了背面熔宽特征参数,并以熔宽和熔宽的变化量作为输入,实时调整焊接电流,保证焊缝背面熔宽均匀一致,从而确保焊缝质量的稳定性。该技术已成功应用于运载火箭贮箱的焊接,效果良好。A CCD visual sensing system is designed to obtain clear back image and control bead width.By image processing,the back bead width is acquired as a characteristic parameter.The parameter and its variables are input so as to adjust welding current and keep uniformity of bead width.The stability of seam quality is ensured as a consequence.This technology is successfully applied in launch vehicle tank manufacture and the effect is prominent.

关 键 词：CCD视觉传感 熔透 熔宽 图像处理 控制 

分 类 号：V46[航空宇航科学与技术—航空宇航制造工程]