Open AccessCross-coupling control of contour error for five-axis linkage machining
Author(s) -
Baoying Peng,
Hou Mingpeng,
Milan Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1748/6/062065
Subject(s) - machining , linkage (software) , rotation (mathematics) , impeller , coupling (piping) , controller (irrigation) , trajectory , point (geometry) , numerical control , computer science , kinematics , control theory (sociology) , engineering , mechanical engineering , geometry , mathematics , physics , computer vision , artificial intelligence , control (management) , agronomy , biochemistry , chemistry , classical mechanics , astronomy , biology , gene
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.