山西农业大学课程设计（论文）CA6140车床后托架加工工艺及夹具设计学生姓名：蒙建国学生学号：2006151111院（系）：工学院专业：机械设计制造及自动化指导教师：张秀全二〇一零年四月摘要在生产过程中，使生产对象（原材料，毛坯，零件或总成等）的质和量的状态发生直接变化的过程叫工艺过程，如毛坯制造，机械加工，热处理，装配等都称之为工艺过程。在制定工艺过程中，要确定各工序的安装工位和该工序需要的工步，加工该工序的机车及机床的进给量，切削深度，主轴转速和切削速度，该工序的夹具，刀具及量具，还有走刀次数和走刀长度，最后计算该工序的基本时间，辅助时间和工作地服务时间。关键词工序，工艺，工步，加工余量，定位方案，夹紧力ABSTRACTEnableproducingthetargetinprocessofproduction(rawmaterials,theblank,stateofqualityandquantityonpartbecomealways)takeplacedirectcourseofchangeaskcraftcourse,iftheblankismade,machining,heattreatment,assembleetc.andcallitthecraftcourse.Inthecourseofmakingthecraft,isitconfirmeveryerectorlocationandworkerstepthatprocessneedthisofprocesstowant,thelocomotiveofprocessing,thisprocess,andtheenteringthegivingamountofthelathe,cutdepth,therotationalspeedofthemainshaftandspeedofcutting,thejigofthisprocess,thecutterandmeasuringtool,aonehundredsheetsofnumberoftimesstillleavesandaonehundredsheetsoflengthleaves,calculatebasictimeofthisprocess,auxiliarytimeandservicetimeofplaceofworkingfinally.Keywords：Theprocess,workerone,worker'sstep,thesurplusofprocessing,orientthescheme,clampstrength目录摘要..........................................................................................................................IABSTRACT.................................................................................................................II1CA6140机床后托架加工工艺.................................................................................31.1CA6140机床后托架的工艺分析...............................................................................31.2CA6140机床后托架的工艺要求及工艺分析..............................................................31.2.1CA6140机床`后托架的技术要求......................................................................41.3加工工艺过程........................................................................................................41.4确定各表面加工方案..............................................................................................41.4.1在选择各表面及孔的加工方法时，要综合考虑以下因素..................................51.4.2平面的加工.....................................................................................................51.4.3孔的加工方案..................................................................................................51.5确定定位基准........................................................................................................61.5.1粗基准的选择.................................................................................................61.5.2精基准选择的原则..........................................................................................71.6工艺路线的拟订.....................................................................................................71.6.1工序的合理组合...............................................................................................71.6.2工序的集中与分散..........................................................................................81.6.3加工阶段的划...
