手表定子片数字图像测量系统  

Watch Stator Plate Digital Image Measurement System

作　　者：陈泽彬 林锦昊 王美清[1] 陈飞[1] Chen Zebin;Lin Jinhao;Wang Meiqing;Chen Fei(College of Mathematics and Computer Science,Fuzhou University,Fuzhou 350116,China;不详)

机构地区：[1]福州大学数学与计算机学院,福州市350116

出　　处：《工具技术》2020年第7期92-95,共4页Tool Engineering

基　　金：国家自然科学基金(61771141);福建省自然科学基金(2017J01751)。

摘　　要：手表中微小零件的检测精度影响手表的使用寿命及走时精度,其零件特殊,且在25mm以内,精度要求均在微米级别。设计手表零件定子片图像测量系统,运用机器视觉测得定子片的圆心距离和外形轮廓。用Hough变换提取圆心坐标,计算圆心距,并采用外形允差对比算法实现零件轮廓度的比对。将其封装成数字图像检测系统进行手表零件全检,提高了检测精度与检测效率。实验证明,数字图像检测系统能实现对手表零件的高效率和高精度测量,达到自动化生产线的检测要求。The detection accuracy of the tiny parts of the watch affects the life and travel time accuracy of the watch.Watch parts are special,the size of which is within 25mm,and the accuracy requirements are on the micron level.In this paper,a stator image measurement system is designed to measure the distance between the center of the stator and its contour using machine vision.The coordinates of the center of the circle are extracted by Hough transform,and the center-to-center distance is calculated.Then use the shape tolerance comparison algorithm to achieve the comparison of the contours parts.It is packaged into a digital image detection system,which enables full inspection of watch parts and improves detection accuracy and detection efficiency.Experiments have confirmed that the digital image detection system can achieve high-efficiency and high-precision measurement of watch parts and meet the production inspection requirements of automated production lines.

关 键 词：机器视觉 HOUGH变换 轮廓度 外形允差 

分 类 号：TG87[金属学及工艺—公差测量技术] TH741[机械工程—光学工程]