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1、英文资料翻译题目CNCnumericalcontrolmachinetools院（系）别中德机电学院专业机电一体化技术班级机电1004学生姓名刘鑫学号指导教师胡冬梅2012年5月CNCnumericalcontrolmachinetoolsComputerdigitalcontrolisacoverallkinds,withdifferentsize,shapeandfunctionofthemachine'sterm，ButthemostsimplemethodsofunderstandingisCNCisakindofcontrolledby
2、computerinthecubematerialprocessingoutusefulobjectsmachine.CNCmachinecanbedividedintotwocategories:thenclatheandncmillingmachine.Numericalcontrollatheusuallyconsistsofclampingworkpiecehigh-speedrotatingdeviceandacancuttoworkpieceexcessmaterialtoolcomposition(toolcanbeinworkpi
3、eceuptoandfromsports,untilgetthedesiredshapeofthe).NcmillingmachineisakindofcanintheX,Y,Zaxisthreedirectionsofmillingprocessingdevice.thenclatheandncmillingmachinedoesnotnecessarilyneedcomputertoproduceaqueuetocontrol.Numericalcontroltechnologyandcomputertechnologiescanallowp
4、eopletofirstofallonthecomputerdesignproducts,andthendefinehowncmachinetoolprocessingtheproduct.Productdesignisonthecomputergeneratesacomputeraideddesigndocuments,thenneedpeopledefinehowNCmachinetoolprocessingtheproductsand,intheend,itstepproducedacomputeraidedmanufacturingfil
5、e(orGcodefiles,orNCfile,thistypeoffilehavemanyname).Thecomputeraidedprocessingfilecontainsallofthencmachinetoolsmustfollowthestepsmachininginformation.ComputerandCNCnumericalcontrolmachinetoolcommunicationstellithowtoexplaintheseprocessingdocumenttocarryontheprocessing.Ncmach
6、inetoolby:procedures,input/outputdevice,CNCunit,servosystem,positionfeedbacksystem,machinebodycomposition.1.programstoragemedium,alsocalledprogramcarrier1)Punchedtape(outdated,eliminated);2)Cassettetape(outdated,eliminated);3)Floppydisk,disk,usbflashdisk,4)Communication.2.inp
7、ut/outputdevices1)Forpunchedtape,withphotoelectricreadingmachine;(outofdate,eliminated);2)Forcassettetape,withrecorders,(outofdate,eliminated);3)Forthefloppydisk,withfloppydiskdriveanddrivecard;4)Modernncmachinetool,butalsothroughthemanualway(MDIstyle);5)DNCcommunicationnetwo
8、rk,RS232serialcommunication.3.CNCunitCNCunitisthecoreofthencmachinet
