数控专业英语论文精编.docx

数控专业英语论文

第一篇：数控专业英语论文WorkpiecepositioningandclampingschemeTheworkpiecepositioningandbenchmarksshouldbeconsistentwiththedesignbasis,andshouldbepreventedwithaworkpiecepositioning,andthebestchoice.“”one-twosalesasapositioningbenchmarksinCNCmachinetools,benchmarks,andthepositioningiscarefullytofind.OntheCNClatheworkpiecepositioninginstalledwithbasicprinciplesofordinarymachinetools.TheInstallmethodworkpieceworkpieceimpacttheprocessingaccuracyandefficiencyinordertogivefullplaytothecharacteristicsoftheirwork,andtheCNCmachinetoolsfolderinstalledworkpieceshouldtakeintoaccountthefollowingfactors:1.asfaraspossiblecommonfixture,onlywhenyoumustdesignandmanufactureofspecialfixture;2.structuraldesigntomeettheaccuracyrequirements;3.easeofpositioningandclamping;4.cleanupforeaseofcutting;5.resistcuttingforcesbysufficientrigidity;·DetermineorderpassesandpassesrouteThecuttinglineistheindexofcontrolledprocessingtoolrelativetotheworkpieceandthedirectionofthetrajectory.Reasonablechoiceofprocessingrouteisveryimportant,becauseitispartofthemachiningaccuracyandsurfacequalityarecloselyrelated.Indeterminingthecuttinglineisthemainconsiderationthefollowingpoints:1）Ensurethatpartsoftherequestprocessingaccuracy.2)convenientnumericalcomputation,reducetheprogrammingeffort.3)findtheshortestroutetoreduceprocessingtimeinordertoimproveprocessingefficiencyairknife.4)minimizeproceduresparagraphnumber.5)Ensurethatworkpiececontoursofthesurfaceroughnessafterprocessingtherequestshouldbefinal,ultimatecontoursgostraightswordprocessing.6)Thedilemmaknivesknife(entrywithalltherouteshavetoseriouslyconsiderinordertominimizethecontoursonthecuttingedgeknife(elasticdeformationcausedbysuddenchanges)andleftaknifemarks,alsoneedtoavoidthecontoursonsurfaceverticalcutterandworkpiecescratch.Processingarrangementsshouldbebasedonpartsofthestructureoftheorderandstockstatusandorientationclampneededtotakeintoaccount,withafocusontherigidityofthejobisnotcompromised.Ordershouldbecarriedoutbythefollowingprinciples:(1)theprocessofproce