Transcription of What is a CNC Machine? CNC : Computerised Numerical ...
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WhatisaCNCM achine?CNC:ComputerisedNumericalControl( Computer+NumericalControl) Numericalcontrolisaprogrammableautomatio ninwhichprocessiscontrolledbyNumbers,Let ters,andsymbols. CNCM achiningisaprocessusedinthemanufacturing sectorthatinvolvestheuseofcomputerstocon trolmachinetoolslikelathes, Tomanufacturecomplexcurvedgeometriesin2 Dor3 Dwasextremelyexpensivebymechanicalmeans( whichusuallywouldrequirecomplexjigstocon trolthecuttermotions) MachiningcomponentswithhighRepeatability andPrecision Unmannedmachiningoperations Toimproveproductionplanningandtoincrease productivity However,sincethegrooveintheballscrewishe lical,itssteelballsrollalongthehelicalgr oove,and,then,theymaygooutoftheballnutun lesstheyarearrestedatacertainspot. Itconsistsofascrewspindle,anut,ballsandi ntegratedballreturnmechanismashowninFigu re.
The structure of the CNC machine is therefore designed to cope with the torsional forces and heavy duty cutting imposed on these machines. • CNC machines have more rigid construction when compared to the conventional machine. • The slide ways, guide and spindles of the CNC machine all look over proportioned when compared to the conventional ...
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