摘要在未来，普通的车床将往中高端层面发展，中档车床采用普及型刀架配置，动力型刀架用于高档车床，此外车床刀架还包括液压刀架、伺服刀架与立式刀架等等。据预测，近些年来随着经济与科技的发展，工业对车床刀架的需求量急剧增加。目前车床刀架的发展走势是：伴随车床的快速发展，配套刀架逐步向伺服驱动、快速换刀和电液组合驱动方向发展。本文主要针对转塔式四工位车床刀架的PLC控制进行设计，同时设计车床刀架的电路部分，从刀架的工作原理以及结构进行分析，设计研究涉及了普通车床刀架的PLC控制，电气控制以及原理和机械结构，霍尔元件的原理及应用。四工位刀架的换刀流程分为三个部分：升起刀盘、旋转刀盘和锁紧刀架。刀盘运动的的旋转动作由以下部分组成：控制中心发出换刀指令→三相异步电动机收到指令启动→涡轮蜗杆开始工作→车床刀架的主轴受到驱动转动→完成刀盘转位。刀盘转位由三相异步电动机来驱动。关键词：四工位刀架；转塔式刀架；Plc控制电路AbstractCNClatheinthefuturewillbetothehigh-enddevelopment,themiddleclasswiththepopularizationofCNCturretmatching,high-gradeuseofpowertypeturret,bothhydraulicturret,servoturret,verticalturretandothervarieties.Inrecentyears,thedemandforNCtoolrestwillbegreatlyincreased.ThefuturedevelopmenttrendofCNCturretis:withthedevelopmentofCNClathes,CNCturretbegantoservodrive,fastchangingandelectrohydrauliccombinationdrivedirection.ThispartmainlyoftheturretfourpositionelectricturretlathePLCcontroldesign,circuitandtheelectrictooldesign,carriesontheanalysisfromtheturretofthestructureandworkingprinciple,designandresearchrelatestotheordinarylathePLCcontrol,electriccontrolandprincipleandthemechanicalstructure,thehallelementprincipleandapplicationof.Thetoolchangingactionofturretturretisdividedintothreeparts:thecutterhead,thecutterheadandthecutterheadarelocked.Therotationofthecutterheadiscomposedofthefollowingsteps:thecontrolsystemsendsouttheinstructionofthecutterheadturning,thestartingofthethree-phaseasynchronousmotor,thewormwheelandthewormwheel,andthecutterheadmainshaftrotatestorealizetheturningofthecutterhead.Theturningofthecutterheadisdrivenbyathree-phaseasynchronousmotor.Keywords:Lathetoolpost;capstanturret;PLCcontrolelectricrotarytool目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc324415351"1绪论PAGEREF_Toc324415351\h1HYPERLINK\l"_Toc324415352"1.1课题的研究背景PAGEREF_Toc324415352\h1HYPERLINK\l"_Toc324415352"1.2课题的来源意义PAGEREF_Toc324415352\h1HYPERLINK\l"_Toc324415354"2刀架硬件部分PAGEREF_Toc324415354\h4HYPERLINK\l"_Toc324415355"2.1刀架的介绍PAGEREF_Toc32441535