Dynamic synchronous accuracy of translational and rotary axes. (1st January 2011)

• Record Type: Journal Article
• Authors: Sato, Ryuta; Tsutsumi, Masaomi
• Is Part Of: International journal of mechatronics and manufacturing systems. Volume 4:Number 3/4(2011)
• Page Start: 201
• Page End: 219
• Publication Date: 2011-01-01
• Subjects: synchronous accuracy -- measurement -- machine tool -- rotary axis -- modelling -- simulation -- control -- tuning -- ball-bar; Mechatronics -- Periodicals; 629.89
• DOI: 10.1504/IJMMS.2011.041469
• Languages: English
• ISSNs: 1753-1039

Abstract

This paper describes the dynamic synchronous accuracy of the translational and rotational axes in five-axis machining centres. In this study, non-uniform three-axis synchronous motion is investigated in order to estimate the dynamic synchronous accuracy. A dynamic model of each axis including a rotary axis is developed, and the synchronous motion is simulated. The dynamic model consists of a moment of inertia, Coulomb's friction, viscous friction, and controllers. As a result of the experiment and simulation, it is clarified that the developed model can express the experimental results accurately. In addition, a controller tuning method that can improve the synchronous accuracy is proposed, and its effectiveness is clarified by the developed dynamic model.