Integration of intelligent measurement and detection for sealing rings used in aerospace systems

HE Bo-xia; LI Chun-lei; LI Jiang-ping; Zhang Yi; LIU Ruo-lin

doi:10.3788/OPE.20152312.3395

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Integration of intelligent measurement and detection for sealing rings used in aerospace systems

Micro Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Integration of intelligent measurement and detection for sealing rings used in aerospace systems
- Optics and Precision Engineering Vol. 23, Issue 12, Pages: 3395-3404(2015)
- 作者机构：
  
  南京理工大学机械工程学院,江苏南京,中国,210094
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152312.3395
  CLC： TP242.62;TH741.4
- Revised：21 August 2015，
  
  Published：25 December 2015
- 稿件说明：
移动端阅览
何博侠, 李春雷, 李江平等. 航天密封圈智能测量与检测系统的集成[J]. 光学精密工程, 2015,23(12): 3395-3404

HE Bo-xia, LI Chun-lei, LI Jiang-ping etc. Integration of intelligent measurement and detection for sealing rings used in aerospace systems[J]. Editorial Office of Optics and Precision Engineering, 2015,23(12): 3395-3404
何博侠, 李春雷, 李江平等. 航天密封圈智能测量与检测系统的集成[J]. 光学精密工程, 2015,23(12): 3395-3404 DOI： 10.3788/OPE.20152312.3395.

HE Bo-xia, LI Chun-lei, LI Jiang-ping etc. Integration of intelligent measurement and detection for sealing rings used in aerospace systems[J]. Editorial Office of Optics and Precision Engineering, 2015,23(12): 3395-3404 DOI： 10.3788/OPE.20152312.3395.

摘要

为了实现航天用O形密封圈的智能化全自动测量与检测

建立了双工位智能测量与检测系统

研究了大量程测量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~

140 mm的O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0.086 mm;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。

Abstract

To achieve the intelligent and automatic measurement and detection of 'O' rings used in aerospace systems

a double-station intelligent measuring and detecting system was established. The integrating 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 calculating method of the acquisition path of small FOVs was derived. Finally

the mapping relationship between the position coordinates of detecting path and their image coordinates in the large FOV was established to realize the intelligent and automatic detection of 'O' rings. The experiment results show that the proposed scheme realizes the autonomous measurement and detection of 'O' rings whose inside diameters are in the range of

5.4-

140 mm. The average error between actual and ideal locations of detecting path is 0.086 mm. Compared with manual measuring and inspecting

the efficiency has been improved by more than 20 times. It satisfies the smart

efficient and automatic requirements of measuring and detecting precise sealing rings used in aerospace systems.

关键词

Keywords

references

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