接触变形对工件加工误差的影响  

On influence of contact deformation on machining errors of workpiece

作　　者：张发平[1] 孙厚芳[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,七系2002博春100081

出　　处：《现代制造工程》2004年第1期71-73,共3页Modern Manufacturing Engineering

摘　　要：基于工件的准静态受力分析 ,运用经典Hertz接触理论 ,计算夹具 工件接触区的变形。根据多刚体运动学 ,建立表面加工误差和接触变形的关系 ,对加工误差进行预报。此方法也可用来计算定位基准误差对加工误差的影响。It is very important to study contact area's deformation between workpiece and fixtures Based on the quasi static force analysis of the workpiece,Hertz theory is used to calculate the deformation According to the multiple rigid body kinematics,the relationship between the contact deformation and surface machining errors has been established,so that machining errors can be predicted This method can also be used to analysis the machining errors caused by fixture locating error.

关 键 词：工件 受力分析 接触变形 误差预报 HERTZ接触理论 定位误差 

分 类 号：TH161.24[机械工程—机械制造及自动化]