olautomatically,lampingdeviceandchipremovaldevice.Thetoolchangeradoptsarotarysingle-arm,two-handedmanipulator,pletethedrivingofthetoolchange.Inaddition,thedesignalsotheelectricalcontrolsystemwhichcontrolledbyPLC.What'smore,itselectssinglechipreasonablyanddesignestheelectricalcontrolcircuit.Cmillingmachiningcenter.pletionofassemblywithotherparts,itcaneffectivelyimprovethecuttingpowerandprocessingefficiency.Itcanalsoshortenthetimeofchangingtoolsandraisetherepeatabilityofthetool.Keywords:?MachineCenter;Principleaxis;ToolChanger;PLC目?录绪论?1数控机床的概述?1数控机床的特点?1加工中心的原理?2数控技术的现状和发展趋势?3本设计研究内容?4加工中心换刀机构方案设计?5主轴及换刀机构的设计计算?7主轴的性能分析?7刀具自动装卸及切屑清除装置?7主轴准停装置?8主轴部分零件的设计计算?8换刀机构的设计?13液压缸的计算?15加工中心硬件的选择设计?19CPU的选择?19程序存储器和数据存储器的扩展?19I/O接口的扩展?19步进电机驱动器的选择?20液压缸的控制?215.?结?论?22参考文献?23致?谢?24附录1:外文翻译?25附录2:外文原文?30