Identification of Kinematic Errors of Five-axis Machine Tool Trunnion Axis from Finished Test Piece

查看全文 作　　者：ZHANG [1,2]Ya;FU [1]Jianzhong;CHEN [1]Zichen

机构地区：[1]The State Key Lab of Fluid Power Transmission and Control, Zhejiang University;[2]Zhejiang Industry Polytechnic College

出　　处：《Chinese Journal of Mechanical Engineering》索引2014年第27卷第5期,共9页

基　　金：Supported by National Nature Science Foundation of China(Grant No.51175461);Science Fund for Creative Research Groups of National Natural Science Foundation of China(Grant No.51221004);Program for Zhejiang Leading Team of S&T Innovation of China(Grant No.2009R50008) 摘　　要：Compared with the traditional non-cutting measurement,machining tests can more accurately reflect the kinematic errors of five-axis machine tools in the actual machining process for the users.However,measurement and calculation of the machining tests in the literature are quite difficult and time-consuming.A new method of the machining tests for the trunnion axis of five-axis machine tool is proposed.Firstly,a simple mathematical model of the cradle-type five-axis machine tool was established by optimizing the coordinate system settings based on robot kinematics.Then,the machining tests based on error-sensitive directions were proposed to identify the kinematic errors of the trunnion axis of cradle-type five-axis machine tool.By adopting the error-sensitive vectors in the matrix calculation,the functional relationship equations between the machining errors of the test piece in the error-sensitive directions and the kinematic errors of C-axis and A-axis of five-axis machine tool rotary table was established based on the model of the kinematic errors.According to our previous work,the kinematic errors of C-axis can be treated as the known quantities,and the kinematic errors of A-axis can be obtained from the equations.This method was tested in Mikron UCP600 vertical machining center.The machining errors in the error-sensitive directions can be obtained by CMM inspection from the finished test piece to identify the kinematic errors of five-axis machine tool trunnion axis.Experimental results demonstrated that the proposed method can reduce the complexity,cost,and the time consumed substantially,and has a wider applicability.This paper proposes a new method of the machining tests for the trunnion axis of five-axis machine tool. 关键词：运动误差五轴机床成品试验横轴加工过程鉴定试样机器人运动学

相关文献

参考文献（30）
引证文献（3）
耦合文献（13）

参考文献(30)

引证文献(3)

耦合文献(13)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Identification of Kinematic Errors of Five-axis Machine Tool Trunnion Axis from Finished Test Piece

参考文献(30)

引证文献(3)

耦合文献(13)

用户提示