数控加工键槽的工装设计毕业论文.doc

摘要本设计分析了数控机床加工轴外键槽的工艺以及引起加工误差的因素。分析对比了普通机床加工轴外键槽和数控加工的优劣。提出了加工轴外键槽的工装设计方案及加工工艺。在设计方案确定以后，根据具体使用要求和工作情况设计夹具的定位元件，夹紧机构，定位键和夹具体。在生产加工中，应用本设计装夹工件，定位夹紧可靠，可以提高工件的加工精度。关键词数控加工，键槽，铣削，对称度CNCMACHININGOFTOOLINGDESIGNKEYWAYABSTRACTTHISTOPICHASMAINLYSTUDIEDTHECIRCLECOOPERATENUMERICALCONTROLPROCESSINGCRAFTANDTHEPROCESSINGMETHOD,DETERMINEDTHEREASONABLEPROCESSINGCUTTINGTOOLANDTHEATTIRECLAMPTHEWAYANDTHECUTTINGSPECIFICATIONS,SOLVEDTHECUTTINGTOOLWHENPROCESSEDTHESCOOPCHANNELWITHTHEWORKPIECESURFACETOHAVETHEINTERFERENCEQUESTIONWITHEMPHASISINTHEANALYSISANDTHERESEARCHPROCESS,USEDNUMERICALCONTROLVEHICLESOFTWARETOCARRYONTHEPATTERNING,THEMODELINGANDTHESIMULATION,HASPRODUCEDTHEPROCESSINGCODE,HASCARRIEDONTHEPROCESSINGINTHENUMERICALCONTROLLATHE,ANDCARRIEDONTHECONTRASTTOANALYZEANDTOSUMMARIZE,HASPROVIDEDTHERELIABLEBASISFORTHEACTUALNUMERICALCONTROLPRODUCTIONPROCESSINGKEYWORDSNUMERICALCONTROLPROCESSING,KEYWAY,MILLING,SYMMETRY目录1引言42夹具的设计421零件的分析5211零件的作用5212零件的工艺分析522工艺规程设计5221确定毛胚的制造形式5222基面的选择6223制定工艺路线6224工艺方案分析6225