文献类型：期刊文献

英文题名：A new linear measurement method for the geometric error of CNC machine tools-Normal measurement method

作者：Hou, Jialin[1];Liu, Huanlao[1];Zhou, Hengyu[1];Wang, Yulin[1]

机构：[1]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Guangdong, Peoples R China

年份：2023

卷号：222

外文期刊名：MEASUREMENT

收录：SCI-EXPANDED(收录号：WOS:001135390700001)、、EI(收录号：20234114856281)、Scopus(收录号：2-s2.0-85173272141)、WOS

基金：This work was supported in part by the Project by National Natural Science Foundation of China under Grant 52175458, in part by the Natural Science Foundation of Guangdong Province of China under Grant 2021A15150110591, and in part by the Project of Guangdong Provincial Department of Education of China under Grant 2022ZDZX3006.

语种：英文

外文关键词：CNC machine tools; Geometric error; Error measurement; Error detection; Multilinear measurement

外文摘要：In order to efficiently identify the geometric error parameters of CNC machine tools, a new geometric error model was established by analyzing the rigid body degrees of freedom error decomposition method in multi-body kinematics theory. Based on this, a novel measurement method called the normal measurement method was proposed. Taking the Y-axis as an example, measurement experiments were conducted on terms of pitch error and yaw error in the geometric error. The results show that the error accuracy identified by the normal measurement method and error model is consistent with traditional linear measurement methods. Furthermore, it has the advantages of a simple measurement process, low error dispersion, and good error prediction value tracking. It provides a new and effective approach for the detection and identification of geometric errors, laying the foundation for improving machine tool machining accuracy.