资源描述：
《普通CA6140车床的经济型数控改造毕业设计论文.doc》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、摘要数控机床以它生产效率高、可加工零件多样化的特点，越来越显示出它的优越性，然而，很多资深的老企业还存在着许多原有的普通机床，如何将普通机床改造成数控机床，已成为机械加工设备改造工作的重点。本文以CA6140普通车床为例阐述了对普通机床进行技术改造的必要性，提出了该机床数控化改造的方案并实施了改造。机械部分改造主要做了以下工作：将两个进给方向的滑动丝杠改为滚珠丝杠，用伺服步进电机和减速齿轮来实现进给部分的调速，这样不仅提高了传动效率而且可以实现快速定位和准确的启、停；数字控制系统选用广州数控设备有`。关键词：数控机床；数控化改造；数控系统AbstractBasedonitshigh
2、productionefficiency,machinablepartsdiversification,CNCmachinehasincreasinglyshownitssuperiority.However,manyseniorenterprisesstillhavelargeamountoforiginalgeneral-purposemachinetools,howtotransformtheordinarytoolsintoCNCmachinetoolshasbecamethefocusofthemechanicalprocessingequipmentmodificati
3、on.BasedonCA6140centrelathe,thispaperexpoundsthenecessityofthetechnologicaltransformationtogeneral-purposemachinetools,andpurposedtransformationoftheCNCprogramandimplementedatransformation.Mechanicalpartsreconstructionmadethefollowingjob:takingthetwofeedingdirectionofslidingscrewinsteadofballs
4、crew,servosteppingmotorandreductiongeartorealizethespeedregulationofthefeedpart,thisworksnotonlyimprovethetransmissionefficiency,butalsoachieverapidpositioningandaccuratestart,stop.DigitalcontrolsystemchoosesGSK928TC-2NCsystemwhichproducedbyNanjingHuaxingNCequipmentlimitedliabilitycompany.This
5、systemachievesthedigitalcontrolcomponentscoordinatework,andthecostislow.Electricsystemtransformationcanceledalargenumberofelectroniccomponentsinhighelectricalcabinet;achievethecontrolcircuitbyswitchrelays,contactors,andservodrive.Then,testingprecisionandgeometryaccuracyofthemachineaftertransfo
6、rmation,thetestresultsmeetthemachine'saccuracy.Thetestresultsverifiedthefeasibilityandreliabilityofmachinetools,notonlytheprocessingexpanded,andthelaborintensityreduce,themachiningefficiencyimproved.Comparedwithbeforemodification,themachine'soperationsaremoreconvenient,andgreatlyreducethelabor
7、erlaborintensity,improvetheproductionefficiencyandproductquality.Thisschemehasadvantageoflittleinvestmentandinstanteffect,whichisworthpopularizing.Keywords:NCmachinetool;Numericalcontroltransformation;NCsystem目录1绪论11．1课题的研究目的和意义11．2本文的选
