Path Interpolation and Dynamics Analysis for Five-Axis Machining

• Main Authors: Kuen-Yi Huang, 黃琨益
• Other Authors: 林明宗
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/2xmt8a

碩士 === 國立虎尾科技大學 === 機械設計工程研究所 === 101 === The paper presents an approach including tool path planning, trajectory interpolation and dynamic matching for five-axis machine tools to achieve high-speed and high-precision machining. The studies consist of the issues on PC-based control architecture, motion controller, forward and inverse kinematics, tool path planning and interpolation, postprocessor and dynamic analysis. To improve the accuracy of five-axis motion control, a system identification method is utilized to obtain the dynamics models. Motion controller is designed by means of the given specification of the servo dynamics systems. Five-axis dynamics are matched according to the ISO inspection process. Forward and inverse kinematics equations are derived based on the kinematic configuration of five-axis machine tools. Tool paths and NC codes of the parts are acquired by means of CAM software such as UG/NX and its postprocessor, respectively. Smooth five-axis motion commands are generated through HEIDENHAIN controller. Finally, experiments are carried out on a C-type five-axis engraving machine with a PC-based controller. The experiment results demonstrate that the proposed approach can be utilized to improve the machining accuracy of the tool center point (TCP) for five-axis machine tools.