Cross-coupling control of contour error for five-axis linkage machining

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...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1748; no. 6; pp. 62065 - 62071
Main Authors Peng, Baoying, Hou, Mingpeng, Zhang, Milan
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2021
Subjects
Accuracy
Contour milling
Control systems design
Controllers
Cross coupling
Five axis
Impellers
Machine shops
Milling (machining)
Model accuracy
Model testing
Physics
Rotation
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Summary: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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1748/6/062065