CA6140机床后托架加工工艺及夹具设计

CA6140车床后托架加工工艺及夹具设计学生姓名：王中蔚学生学号：ZJD02043院（系）：机电工程学院年级专业：02机械制造及自动化指导教师：卢宗彪副教授二〇〇六年六月攀枝花学院本科毕业设计（论文）摘要I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，夹紧力攀枝花学院本科毕业设计（论文）AbstractIIABSTRACTEnableproducingthetargetinprocessofproduction(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攀枝花学院本科毕业设计（论文）目录1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........................................................................................................51.4确定各表面加工方案..............................................................................................51.4.1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.....................................................................................................61.4.3孔的加工方案..................................................................................................61.5确定定位基准........................................................................错误!未定义书签。1.5.1粗基准的选择.................................................................错误!未定义书签。1.5.2精基准选择的原则..........................................................错误!未定义书签。1.6工艺路线的拟订.....................................................................错误!未定义书签。1.6.1工序的合理组合..............................................................错误!未定义书签。1.6.2工序的集中与分散..........................................................错误!未定义书签。1.6.3加工阶段的划分..............................................................错误!未定义书签。1.6.4加工工艺路线方案的比较...............................................错误!未定义书签。1.7CA6140机床后托架的偏差，加工余量，工序尺寸及毛坯尺寸的确定..错误!未定义书签。1.7.1毛坯的结构工艺要求......................................................错误!未定义书签。1.7.2CA6140机床后托架的偏差计算........................................错误!未定义书签。1.8确定切削用量及基本工时（机动时间）..................................错误!未定义书签。1.8.1工序1：粗、精铣底面....................................................错误!未定义书签。1.8.2工序2粗、半精、精镗CA6140侧面三杠孔...................错误!未定义书签。1.8.3工序3：钻顶面四孔.......................................................错误!未定义书签。1.8.4工序4：钻侧面两孔.......................................................错误!未定义书签。1.9时间定额计算及生产安排.......................................................错误!未定义书签。1.9.1粗、精铣底面.................................................................错误!未定义书签。1.9.2镗侧面三杠孔.................................................................错误!未定义书签。1.9.3钻顶面四孔.....................................................................错误!未定义书签。2专用夹具设计.........................................................................错误!未定义书签。2.1铣平面夹具设计.....................................................................错误!未定义书签。2.1.1研究原始质料.................................................................错误!未定义书签。2.1.2定位基准的选择..............................................................错误!未定义书签。2.1.3切削力及夹紧分析计算...................................................错误!未定义书签。攀枝花学院本科毕业设计（论文）目录22.1.4误差分析与计算..............................................................错误!未定义书签。2.1.5夹具设计及操作的简要说明............................................错误!未定义书签。2.2镗孔夹具设计........................................................................错误!未定义书签。2.2.1研究原始质料.................................................................错误!未定义书签。2.2.2定位基准的选择..............................................................错误!未定义书签。2.2.3切削力及夹紧力的计算...................................................错误!未定义书签。2.2.4误差分析与计算..............................................................错误!未定义书签。2.3钻顶面四孔夹具设计..............................................................错误!未定义书签。2.3.1研究原始质料.................................................................错误!未定义书签。2.3.2定位基