线结构光视觉技术与最小二乘法中孔直线度检测  

Research on Line Structured Light Vision Technology Andthe Least Squares Method for Detection of Straightness of Injector Body

作　　者：赵延超 武美萍 任仲贺 王全龙 吴克中 

机构地区：[1]江南大学机械工程学院,江苏无锡214122 [2]中国第一汽车股份有限公司无锡油泵油嘴研究所,江苏无锡214063

出　　处：《机械设计与研究》2018年第1期141-144,共4页Machine Design And Research

基　　金：国家重大04专项资助项目“电控共轨柴油喷射系统关键技术与装备的研发及应用(二期)”(2015ZX04002022-006)

摘　　要：设计了由激光发射器、CCD摄像机、计算机等组成的线结构光视觉测量系统，用于测量喷油器体中孔空间测点坐标。基于最小二乘原理，建立了中孔直线度的数学模型，推导出中孔直线度的计算公式。利用线结构光视觉技术和最小二乘法，计算出中孔直线度误差值。实验结果表明该方法得到的直线度误差精度较高，符合中孔直线度最低标准要求，具有较高的应用价值。A linear structured light vision measurement system was designed, which was composed of a laser transmitter, a CCD camera and a computer. It was used to measure the coordinates of measuring points in the hole of injector body. Based on the least squares principle,the mathematical model of the straightness was established and the formula for calculating the straightness was derived. The straightness error of the hole was＇ calculated by using line structured light vision technology and the least squares method. The experimental results showed that the accuracy of the straightness error was high which was obtained by this method , the accuracy of the straightness error meets the minimum standard requirements and this method has high application value.

关 键 词：线结构光 喷油器体 直线度 最小二乘法 

分 类 号：TH16[机械工程—机械制造及自动化]