数字控制外文翻译外文文献英文文献
数字控制外文翻译外文文献英文文献
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数字控制外文翻译外文文献英文文献
数字控制 外文翻译 外文文件 英文文件
NCandCNC
NumericalControl(NC)isanymachiningprocessinwhichtheoperationsareexecutedautomaticallyinsequencesasspecifiedbytheprogramthatcontainstheinformationforthetoolNCisperformedundercomputersupervision,itiscalledComputerNumericalControl(CNC).ForbothNCandCNCsystems,,newsystemsarefaster,morepowerful,andmoreversatile.
UsingNC
Earlymachinetoolswereoperatedbycraftsmenwhodecidedmanyvariablessuchasspeeds,feeds,anddepthofcut,,anewterm,NumericalControl(NC)
ElectronicIndustriesAssociation(EIA)as “Asysteminwhichactions
arecontrolledbythedirectinsertionofnumericaldataatsomepoint.
Thesystemmustautomaticallyinterpretatleastsomeportionofthis
data.”
Inthepast,-risingcostoflabor,bettermachinetools,completewithelectroniccontrols,weredeveloped
sothatindustrycouldproducemoreandbetterproductsatpricesthatwerecompetitivewiththoseoffshoreindustries.
-spindledrillingmachine,lathe,millingmachine,turningcenter,andmachiningcenter.
DrillingMachine
Oneofthesimplestnumericallycontrolledmachinetoolsisthesingle-:
-axiscontrolsthetablemovementtotherightorleft.
-axiscontrolsthetablemovementtowardorawayfromthecolumn.
-
Theenginelathe,oneofthemostproductivemachinetools,:
-axiscontrolsthecrossmotion(inorout)ofthecuttingtool.
-axiscontro
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