Analysis on Influence of the Position Error of Joint Points in the Fixed Platform of 3-UPS Parallel Machine Tool

Abstract:

This paper took one kind of 3-TPT Parallel Machine Tool (PMT) as the object of research. It mainly analyzed the influences of the position error of joint points in the fixed platform to the position error of tool of this PMT. Firstly, on the basis of introducing the structure of PMT, the kinematics of this machine was analyzed, and the inverse kinematics equation of this PMT was obtained. Then the influence situation of the position error of joint points in the fixed platform to the position error of tool was studied based on the kinematics analysis results and the error independent function principle, and the corresponding mathematical expression of error influence was established. Thus the theoretical foundation was laid for the comprehensive establishment of error model and the error compensation of this PMT

• Periodical: Advanced Materials Research (Volume 459)
• Pages: 203-206
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.459.203
• Online since: January 2012
• Authors: Jian Ye Guo, Yan Jin, Zhong Qi Sheng, Liang Zhao
• Keywords: Fixed Platform, Joint Point, Kinematics, Parallel Machine Tool (PMT), Position Error

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