关键词: 混联机床, 运动学映射模型, 后置处理, 刀具轨迹仿真

Abstract: Based on a novel 5-axis hybrid machine tool with a three coordinate parallel power head,the kinematics mapping model from work space to drive shaft was established with vector chain method,which laid a foundation for the development of post-processing module and tool path simulation module.In the post-processing module,the interpolation and coordinate transformation of cutter location file produced from CAM system were carried out in workspace,and the process point set was obtained.The inverse kinematics was invoked to convert the process point set into motion control sequence,and the feed speed was determined.Thus the five-axis control of hybrid machine tool was achieved.Based on  forward kinematics,the tool path simulation module was developed which realized the parameters collection of drive shaft motor displacement,the display of cutting tool workspace path and the monitoring of cutting tool running state.The programming and machining experiment of a specimen with “S” shape was completed successfully,which verified the performance of the developed module.

Key words: hybrid machine tool, kinematics mapping model, post-processing, tool path simulation