数控技术双语2.ppt

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1、领域：数控技术、CAD/CAM技术、柔性加工技术、集成制造技术、智能制造技术、虚拟制造技术、绿色制造技术趋势：高精度、高效率、自动化、信息化、智能化制造业数控化率年增长率达6%，据预测到2020年，我国制造业数控化率将达到60%，正向制造业大国迈进。NUMERICALCONTROLTECHNOLOGYChapter2NCPartProgrammingElectromechanicalEngineeringCollegeHenanUniversityofScienceandTechnology.Chapter2NCPARTPROGRAMMING2.1

2、、IntroductiontoNCpartprogramming2.2、ThecodesusedinCNC2.3、Manualpartprogramming2.4、Automaticprogramming.Chapter2NCPARTPROGRAMMING2.1、IntroductiontoNCpartprogrammingTheprogramofinstructionsisthedetailedstep-by-stepcommandsthatdirecttheactionsoftheprocessingequipment.Inmachinetoo

3、lapplications,theprogramofinstructionsiscalledapartprogram,andthepersonwhopreparestheprogramiscalledapartprogrammer.Numericalcontrol(NC)isaformofautomaticallyoperatingamachinetoolbasedoncodedalphanumericdata.Acompletesetofcodedinstructionsforexecutinganoperationiscalledaprogra

4、m.Theprogramistranslatedintocorrespondingelectricalsignalsforinputtoservomotorsthatrunthemachine..Chapter2NCPARTPROGRAMMING1、IntroductiontoNCpartprogrammingwecallthewholeprocessfrompartgraphicstofinishingcontrolmediumtheprogrammingofnumericalcontrolmanufacturing,orcallitNCprog

5、ramming.Whenusingnumericalcontrolmachinetooltomanufactureparts,theprogrammingisveryimportant.Theprogramisnotonlycorrectandfastbutalsoeffectiveandeconomic.Chapter2NCPARTPROGRAMMING2.1.1ThecontentsandstepsofnumericalcontrolprogrammingTheprogramcanbeinputtedintoCNCsystemandtheCNC

6、systemcontrolsCNCmachinetoolstomanufactureautomatically.Generallyspeaking,themainstepsofNCprogrammingareanalyzingpartgraphics,determiningthemanufacturingtechnologicalprocess,calculatingnumericalvalue,programming,verifyingtheprogramandinputtingtheprogramintoCNCsystem.Figure2.1i

7、llustratestheprogrammingsteps..Chapter2NCPARTPROGRAMMING2.1.1ThecontentsandstepsofnumericalcontrolprogrammingBeforeNCprogramming,theprogrammershouldunderstandthenumericalcontrolmachinespecifications,characteristics,thefunctionsandprogramminginstructionsformatoftheCNCsystem,etc

8、.Whenprogramming,heshouldanalyzethepart’stechnicalrequirement