摘要采用数控车床控制系统进行机械加工具有加工精度高、生产效率高、改善劳动力条件、利于生产管理现代化的特点，极大满足对产品多样化的需求。论文以数控车床为研究对象，对其基于PLC的控制系统进行了设计。主要有一下几点内容：（1）提出了基于PLC数控车床的控制系统设计的总体方案：伺服驱动控制系统设计方案、联动控制设计方案等。简单的地进行了对数控车床的主要机械结构、控制系统结构以及数控车床工作原理和流程介绍；（2）较为详细地进行了数控车床控制的设计，其中包括元器件选则，硬件电路设计，和相关模块的接线，如运动控制器的接线，PLC配线等以及PLC对步进电机、主轴电机、电路报警的程序设计；（3）采用Matlab进行对本次设计中的进给系统进行仿真，进行了模型的建立，仿真数据的分析。关键词：PLC；数控车床；控制系统；仿真AbstractThemachiningoperationemploysCNClathecontrolsystem,andwiththefeaturesofhighprecision,highproductionefficiency,improvedlaborconditions,conducivetoproductionandmodernmanagement,whichcangreatlymeetthediverseneedsoftheproduct.ThestudyobjectofthispaperisCNClathe,andthemaincontentsofitsPLC-basedcontrolsystemdesignsareasfollowing:theoveralldesignprogramofPLC-basedCNClathecontrolsystem:designprogrammeofservodrivecontrolsystem,designprogrammeoflinkagecontrol.AbriefintroductionaboutCNClathemechanicalstructure,controlsystemstructureaswellasCNClatheworkingprincipleandprocessaregiven;GiveadetailedintroductiononCNClathecontroldesign,includingthecomponentsselection,hardwarecircuitdesign,wiringwithrelatedmodules,suchasmotioncontrollerwiring,PLCwiringaswellasPLCprogramdesignonsteppermotor,spindlemotorandcircuitalarm;TosimulatethefeedsystembyusingMatlab,establishmodel,andcarryouttheanalysisofthesimulationdata.Keywords:PLC;CNClathes;controlsystem;simulation目录摘要..............................................................................................................................................IABSTRACT...................................................................................................................................II目录............................................................................................................................................V1绪论.............................................................................................................................................11.1数控系统的发展.....................................................