Abstract
The research on the parameters optimization for gasbag polishing machine tools, mainly aims at a better kinematics performance and a design scheme. Serial structural arm is mostly employed in gasbag polishing machine tools at present, but it is disadvantaged by its complexity, big inertia, and so on. In the multi-objective parameters optimization, it is very difficult to select good parameters to achieve excellent performance of the mechanism. In this paper, a statistics parameters optimization method based on index atlases is presented for a novel 5-DOF gasbag polishing machine tool. In the position analyses, the structure and workspace for a novel 5-DOF gasbag polishing machine tool is developed, where the gasbag polishing machine tool is advantaged by its simple structure, lower inertia and bigger workspace. In the kinematics analyses, several kinematics performance evaluation indices of the machine tool are proposed and discussed, and the global kinematics performance evaluation atlases are given. In the parameters optimization process, considering the assembly technique, a design scheme of the 5-DOF gasbag polishing machine tool is given to own better kinematics performance based on the proposed statistics parameters optimization method, and the global linear isotropic performance index is 0.5, the global rotational isotropic performance index is 0.5, the global linear velocity transmission performance index is 1.012 3 m/s in the case of unit input matrix, the global rotational velocity transmission performance index is 0.102 7 rad/s in the case of unit input matrix, and the workspace volume is 1. The proposed research provides the basis for applications of the novel 5-DOF gasbag polishing machine tool, which can be applied to the modern industrial fields requiring machines with lower inertia, better kinematics transmission performance and better technological efficiency.
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This project is supported by National Natural Science Foundation of China (Grant No. 51005207), Open Foundation of the Mechanical Engineering in Zhejiang University of Technology, China (Grant No. 2009EP004), and Foundation of Zhejiang Provincial Education Department of China (Grant No. Y200908129)
LI Yanbiao, born in 1978, is currently an associate professor at Zhejiang University of Technology, China. He received his PhD degree from Yanshan University, China, in 2008. His research interests include parallel mechanism, robotics.
TAN Dapeng, born in 1980, is currently an associate professor at Zhejiang University of Technology, China. He received his PhD degree from Zhejiang University, China, in 2008. His research interests include robotics.
WEN Donghui, born in 1974, is currently a professor at Zhejiang University of Technology, China. He received his PhD degree from Dalian University of Technology, China, in 2003. His research interests include mechanism.
JI Shiming, born in 1957, is currently a professor at Zhejiang University of Technology, China. He received his PhD degree from Zhejiang University, China, in 2000. His research interests include robot and ultra precision machining technology.
CAI Donghai, born in 1982, is currently a research assistant at Zhejiang University of Technology, China. He received his master degree from Zhejiang University of Technology, China, in 2007. His research interests include mechanism and robot control technology.
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Li, Y., Tan, D., Wen, D. et al. Parameters optimization of a novel 5-DOF gasbag polishing machine tool. Chin. J. Mech. Eng. 26, 680–688 (2013). https://doi.org/10.3901/CJME.2013.04.680
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DOI: https://doi.org/10.3901/CJME.2013.04.680