汽车副车架三维数字化形貌构建与检测  

Construction and Detection of Three Dimensional Digital for Automotive Subframe Morphology

作　　者：刘悦[1] 纪东兵 潘婷婷 LIU Yue;JI Dong-bing;PAN Ting-ting(School of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Jilin Changchun 130022,China)

机构地区：[1]长春理工大学机电工程学院

出　　处：《机械设计与制造》2019年第6期80-83,共4页Machinery Design & Manufacture

摘　　要：针对汽车行业冲压零部件对误差检测的需求,采用三维数字化形貌测量及检测技术对汽车副车架进行了研究分析。运用ATOS系统对汽车副车架样件进行了前期处理与扫描,通过CATIA软件对原始点云进行了除噪点、三角网格化、补洞、光顺等处理,借助GOMInspect软件平台,使用RPS点拟合法对点云和数模进行了最佳拟合,并分析了标称与实际元素关键位置之间的误差来源,从而提供对模具调试的依据。该检测方法适用于各类材质的冲压件和钣金件,对控制产品的精度具有指导意义。According to the demand of automobile industry on the error detection,the analysis of the car’s subframe was researched by three-dimensional digital morphology measurement and detection technology.Through using the ATOS system,the car’s subframe samples has been preprocessing and scanning.Then remove useless points,triangular mesh,fill the holes and mesh smoothing based on CATIA.Using RPS points fitting method to complete the best fit between point cloud and digital model,and analyzing the errors between the nominal and actual element locations based on the GOM Inspect software platform.The method is applicable to various types of stamping parts and sheet metal parts,and has a guiding significance for the control of product errors.

关 键 词：三维数字化检测 数字化建模 点云处理 

分 类 号：TH16[机械工程—机械制造及自动化]