叶形孔视觉测量系统设计  

Design of Machine Vision Measuring System for Blade⁃Shaped Hole

作　　者：周鹏 盛波 胡成海[1] 毕超[1] 郝雪 ZHOU Peng;SHENG Bo;HU Chenghai;BI Chao;HAO Xue(Aviation Key Laboratory of Science and Technology on Precision Manufacturing Technology,Beijing Precision Engineering Institute for Aircraft Industry,Beijing 100076,China;Science and Technology Department,AECC South Industry Company Limited,Zhuzhou Hunan 412002,China)

机构地区：[1]北京航空精密机械研究所精密制造技术航空科技重点实验室,北京100076 [2]中国航发南方工业有限公司科技工程部,湖南株洲412002

出　　处：《机床与液压》2022年第4期81-85,共5页Machine Tool & Hydraulics

基　　金：国防基础项目(JCKY2018205B013)。

摘　　要：为满足航空发动机静子组件叶形孔精密测量要求,基于机器视觉,设计非接触式四轴叶形孔测量系统。该系统主要由三轴运动机构、高精度气浮转台、工业相机、光源、夹具和工控PC机组成。为获取叶形孔边缘的坐标值,将采集的图像在上位机上进行中值滤波、二值化、前景区域分离、区域选择、图形学处理、边缘提取、边缘坐标值提取,最终实现静子组件叶形孔线轮廓度的测量。In order to meet the requirements for precise measurement of the blade⁃shaped hole of the stator of aeroengine,a non⁃contact four⁃axis blade⁃shaped hole measurement system was designed based on the method of machine vision.The system was mainly composed of three⁃axis motion mechanism,high⁃precision air⁃floating turntable,industrial camera,light source,fixture and industri⁃al PC.In order to obtain the coordinate value of the edge of the blade⁃shaped hole,the collected image was subjected to median filte⁃ring,binarization,foreground area separation,area selection,graphics processing,edge extraction,edge coordinate value extrac⁃tion and coordinate transformation on the host computer,and the measurement of line profile of blade⁃shaped hole was finally realized.

关 键 词：叶形孔 视觉测量系统 非接触测量 

分 类 号：TB92[一般工业技术—计量学]