哈尔滨工业大学学报（英文版）2007，Vol.14Issue(2)：244-247,4.
Research on postprocessing of seven-axis linkage parallel kinematics machine with complicated surfaces
Research on postprocessing of seven-axis linkage parallel kinematics machine with complicated surfaces
WEI Yong-geng 1SHI Yong 2ZHAO Kun3
作者信息
- 1. School of Mechanical and Electrical Engineering, Heilongjiang University, Harbin 150080, China
- 2. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
- 3. China Petroleum Jilin Petroleum and Chemical Company Enterprise Lab, Jilin 132001 ,China
- 折叠
摘要
Abstract
Because of restriction of workspace of parallel kinematics Machine (PKM), 6 DOF PKM can't finish machining of workpiece with complicated surfaces under only once locating. It is necessary to fit workpiece beyond twice and to lead to low machining precision. Therefore the seven-axis linkage PKM is implemented by fixing a turntable on the worktable of the six-axis linkage PKM. However, the turntable angle decomposing problem from the CL file should be well considered. If the traditional decomposing methods are adopted, the nutation angle usually goes beyond the workspace of the machine. Therefore, according to the relation of the machine coordinate system and the workpiece coordinate system, the turntable angle decomposition algorithmic of the consistent coordinate system and the turntable angle decomposition algorithmic of the non-consistent coordinate system are developed to resolve the problem mentioned above. The turntable angle decomposition of the non-consistent coordinate system processes the decomposition which is based on the consistent coordinate system again. It calculates the initial angle of the locating workpiece, and the decomposed angle of the turntable at the machine coordinate system results in the nutation angle not going beyond workspace of the machine, thereby the decomposition process can be simplified.关键词
parallel kinematics machine (PKM)/complicated surfaces/postprocessingKey words
parallel kinematics machine (PKM)/complicated surfaces/postprocessing分类
矿业与冶金引用本文复制引用
WEI Yong-geng,SHI Yong,ZHAO Kun..Research on postprocessing of seven-axis linkage parallel kinematics machine with complicated surfaces[J].哈尔滨工业大学学报（英文版）,2007,14(2):244-247,4.
