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1、Chapter6NumericalControlProgramming6.1NCpartprogramming 6.2Manualpartprogramming 6.3Computer-assistedpartprogramming 6.4CADpartprogramming 6.5NCcutter-pathverification 6.6Analyticalgeometryforpartprogramming6.1NCPARTPROGRAMMING /数控编程IntroductionCoordinateSy
2、stems/坐标系NCWords/控制字6.1.1CoordinateSystem/坐标系Cartesiancoordinatesystem:笛卡尔坐标系thexyzsystemisaright-handsystemPositivemotion:movingthecuttingtoolawayfromtheworkpiece.6.1.1CoordinateSystem/坐标系ZAXISworkpiece-rotatingmachine:Zisparalleltothespindletool-rotatingm
3、achine:ZisparalleltothetoolaxisZZZZ//rotatingspindle6.1.1CoordinateSystem/坐标系XAXISworkpiece-rotatingmachine:Xisthedirectionoftoolmovementhorizontalmillingmachine:Xaxisisparalleltothetableverticalmachine:+Xaxispointstotherightwhentheprogrammerisfacingthemach
4、ine.ZZZXXXX//table6.1.5NCWords/控制字N,G,X,YZ,A,B,C,I,J,K,F,S,T,R,MN:specifythesequencenumberG:preparatoryword（准备功能代码）toprepareforcontrolfunctions(themotionofeachaxis,coordinatesystem,coordinateplane,cutterradiuscompensation,toollengthoffset……)M:miscellaneousw
5、ord（辅助功能代码）tocontrolmiscellaneousfunctions(spindleon/off,start/stopthemachine,turnon/offthecoolant,changethetool,andrewindtheprogramtape)6.1.5NCWords/控制字6.1.5NCWords/控制字M00ProgramstopM06ToolchangeM01OptionalstopM07FloodcoolantonM02EndofprogramM08Mistcoolant
6、onM03SpindleCWM09CoolantoffM04SpindleCCWM30EndoftapeMCODES6.1.5NCWords/控制字Modalcodesandnonmodalcodes/模态和非模态代码modalfunctionsModalfunctionsstayactiveuntilsomeothercommandchangesit.Modalcommandsarearrangedinsetscalled“modalgroups（模态组）”,andonlyonememberofamodal
7、groupmaybeinforcesatanygiventime.non-modalfunctionsNon-modalfunctionshaveeffectonlyonthelinesonwhichtheyoccur.6.1.5NCWords/控制字modalgroups/模态组6.1.5NCWords/控制字M00ProgramstopM06ToolchangeM01OptionalstopM07FloodcoolantonM02EndofprogramM08MistcoolantonM03Spindle
8、CWM09CoolantoffM04SpindleCCWM30EndoftapeMCODESmodalgroups/模态组6.1.5NCWords/控制字N,G,X,Y,Z,A,B,C,I,J,K,F,S,T,R,MF:feedrateofthetoolmotionS:cutting-speedT:toolnumber6.1.5NCWords/控制字X,Y,Z,A,B,C:providethecoo
