第23卷第12期 2015年12月
文章编号
1004-924X(2015)12-3395-10
光学精密工程
Optics and Precision Engineering
Vol.23No.12
Dec.2015
航天密封圈智能测量与检测系统的集成
何博侠*，李春雷，李江平，张毅，刘若琳（南京理工大学机械工程学院，江苏南京210094）
与曲面缺陷检测系统集成方案以及测量路径自主规划技术。首先，针对O形圈的柔性结构、曲面外形以及内径与截面直径之比跨度大的特点，提出基于多视场协同的双工位智能测量与检测方案，介绍了系统集成方法及其工作原理。然后，根据密封圈在大视场中的全景图信息及检测路径规划基本准则，导出了通用的小视场图像采集路径计算方法。最后，建立了密封圈检测路径的物理坐标与大视场图像坐标的映射关系，实现了系统的智能化全自动检测。实验结果表明：本集成方案能够对外形尺寸为@5.4～@140mm的0形圈进行智能化自主测量与检测，实际检测路径的位置与理想位置之间的平均误差为0.086mm；与手工测量和检测相比，效率提高了20倍以上，能够满足航天用精密密封圈的智能、高效、全自动测量与检测要求。
关键词：密对图；航天系统密封；智能测量；智能检测；自动测量
中图分类号：TP242.62;TH741.4
文献标识码：A
doi:10.3788/OPE, 20152312, 3395
Integrationofintelligentmeasurementanddetection
forsealingringsusedinaerospacesystems
HE Bo-xia',LI Chun-lei,LI Jiang-ping,ZHANG Yi,LIU Ruo-lin
(Schoolof MechanicalEngineering，NanjingUniversityof
Scienceand Technology,Nanjing 210094,China)*Correspondingauthor,E-mail:heboria@163.com
Abstract: To achieve the intelligent and automatic measurement and detection of 'O' rings used in aer-ospace systems, a double-station intelligent measuring and detecting system was established. The in-tegrating method of wide-range measurement and defect detection in curved surfaces was proposed, and the autonomous measuring path planning technology was investigated.Aiming at the flexible structure and the curved surface shape of 'O' rings and the wide range of the ratio between the inner diameter and the section diameter, an intelligent measuring and detecting scheme of double-station based on the cooperation of multiple fields of view (FOV) was proposed. The system integrating method and its working principle were introduced.Then, according to the information extracted from the panoramic image of the ‘O' rings in the large FOV and the basic rule of path planning, the general
收稿日期：2015-06-17；修订日期：2015-08-21，
基金项目：国家自然科学基金资助项目（No.51175267，No.51575281)；江苏省自然科学基金资助项目（No.
BK2010481)；高等学校博士学科点专项科研基金资助课题（No.20113219120004）