Error modeling and sensitivity analysis of turning-milling compound CNC machine tools

2019 ◽  
Author(s):  
Jinwei Fan ◽  
Haohao Tao ◽  
Yiling Zhang ◽  
Peitong Wang
Keyword(s):  
Sensitivity Analysis ◽  
Machine Tools ◽  
Error Modeling ◽  
Cnc Machine Tools ◽  
Cnc Machine

Application of principal component algorithm in spindle thermal error modeling of CNC machine tools

2021 ◽  
Vol 29 (11) ◽  
pp. 2649-2660
Author(s):  
Xin-yuan WEI ◽  
◽  
Yu-chen CHEN ◽  
En-ming MIAO ◽  
Xu-gang FENG ◽  
...  
Keyword(s):  
Machine Tools ◽  
Thermal Error ◽  
Principal Component ◽  
Error Modeling ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Thermal Error Modeling

scholarly journals Global Quantitative Sensitivity Analysis and Compensation of Geometric Errors of CNC Machine Tool

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Shijie Guo ◽  
Dongsheng Zhang ◽  
Yang Xi
Keyword(s):  
Sensitivity Analysis ◽  
Machine Tool ◽  
Machine Tools ◽  
Geometric Error ◽  
Test Method ◽  
Cnc Machine Tools ◽  
Geometric Errors ◽  
Cnc Machine ◽  
Open Cnc ◽  
Open Cnc System

A quantitative analysis to identify the key geometric error elements and their coupling is the prerequisite and foundation for improving the precision of machine tools. The purpose of this paper is to identify key geometric error elements and compensate for geometric errors accordingly. The geometric error model of three-axis machine tool is built on the basis of multibody system theory; and the quantitative global sensitivity analysis (GSA) model of geometric error elements is constructed by using extended Fourier amplitude sensitivity test method. The crucial geometric errors are identified; and stochastic characteristics of geometric errors are taken into consideration in the formulation of building up the compensation strategy. The validity of geometric error compensation based on sensitivity analysis is verified on a high-precision three-axis machine tool with open CNC system. The experimental results show that the average compensation rates along theX,Y, andZdirections are 59.8%, 65.5%, and 73.5%, respectively. The methods of sensitivity analysis and geometric errors compensation presented in this paper are suitable for identifying the key geometric errors and improving the precision of CNC machine tools effectively.

Integrated geometric error modeling, identification and compensation of CNC machine tools

2012 ◽  
Vol 52 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Shaowei Zhu ◽  
Guofu Ding ◽  
Shengfeng Qin ◽  
Jiang Lei ◽  
Li Zhuang ◽  
...  
Keyword(s):  
Machine Tools ◽  
Geometric Error ◽  
Error Modeling ◽  
Cnc Machine Tools ◽  
Cnc Machine
Sign in / Sign up

Export Citation Format

Share Document