Cross-coupling control of contour error for five-axis linkage machining. Issue 6 (January 2021)

• Record Type: Journal Article
• Authors: Peng, Baoying; Hou, Mingpeng; Zhang, Milan
• Is Part Of: Journal of physics. Volume 1748:Issue 6(2021)
• Publication Date: 2021-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1748/6/062065
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The accuracy of five-axis linkage machining is influenced by many factors, such as linear axis errors, tool rotation errors, contour trajectory changes, milling force changes, and five-axis parameters do not mismatch. To improve the machining accuracy, the kinematical model of five-axis linkage with B-C double swing head is derived on the basis of RTCP (Rotation tool center point). The following errors of five axis coupled form contour error calculation model is proposed and a cross-coupled controller is designed. Choosing the curve of impeller as an example, a simulation model of five-axis linkage machining is established. Simulation results show that the cross-coupling controller designed for can improve the machining contour accuracy of the five-axis machining effectively.