86套筒加工工艺及夹具设计

陕西理工学院毕业设计（论文）说明书题目套筒加工工艺及夹具设计学生系别专业班级学号指导教师川理工学院毕业设计（论文）任务书设计（论文）题目：套筒加工工艺及夹具设计系：专业：机械设计制造及自动化班级：学生：学号：指导教师：接受任务时间教研室主任（签名）系主任（签名）1．毕业设计（论文）的主要内容及基本要求⑴、绘制并审核零件图、毛坯图；⑵、设计加工工艺并编制工艺规程、工序卡；⑶、设计夹具装配图；⑷、编制夹具安装调整及使用维护说明书；⑸、编制设计说明书。2．原始资料⑴、零件图一张；⑵、生产批量6000件/年2．指定查阅的主要参考文献及说明⑴、机械设计手册⑵、机械加工工艺手册⑶、夹具设计手册⑷、机床图册⑸、其他相关资料3．进度安排设计（论文）各阶段名称起止日期1查阅和收集设计资料、绘制零件图2进行套筒加工工艺及夹具设计并绘制毛坯图3填写机械加工工艺过程卡片和工序卡片4设计套筒加工工艺及夹具并绘制零件图、装配图5编写设计说明书6毕业设计(论文)的修改、答辩的准备时间28中文摘要零件的加工工艺编制，在机械加工中占有非常重要的地位，零件工艺编制得合不合理，这直接关系到零件最终能否达到质量要求；夹具的设计也是不可缺少的一部分，它关系到能否提高其加工效率的问题。因此这两者在机械加工行业中是至关重要的环节。套筒零件的主要加工表面为孔和外圆表面。外圆表面加工根据精度要要求可选择车削和磨削。孔加工方法的选择比较复杂，需要考虑零件的结构特点、孔径大小、长径比、精度和粗糙度要求以及生产规模等各种因素。对于精度要求较高的孔往往还要采用几种不同的方法顺次进行加工。本次设计的油缸，为保证孔的精度和表面质量将先后经过粗镗、半精镗、精镗和滚压等四道工序加工。在机床上对零件进行机械加工时，为保证工件加工精度，首先要保证工件在机床上占有正确的位置，然后通过夹紧机构使工件在正确位置上固定不动，这一任务就是由机床夹具完成。对于单件、小批量生产，应尽量使用通用夹具，这样可以降低工件的生产成本。但是由于通用夹具适用各种工件的装夹，所以夹紧时往往比较费时间，并且操作复杂，生产效率低，也难以保证加工精度，为此需设计专用夹具。关键词：工艺设计、基准选择、切削用量、定位误差IIABSTRCTIsthecomponentscraftestablishment,holdstheveryimportantstatusinthemachine-finishing,thecomponentscraftestablishesreasonable,whetherdothisdirectrelationcomponentsachievethequalityrequirementfinally;Jig'sdesignisalsoanessentialpart,whetherdoesitrelateraisesitsprocessingefficiencythequestion.Thereforethisbothinthemachine-finishingprofessionaretheimportantlinks.Sleevecomponentsmainprocessingsurfaceforholeandouterannulussurface.Theouterannulusfaceworkneedstorequestaccordingtotheprecisiontobepossibletochoosetheturningandthegrinding.Theholeprocessingmethod'schoiceisquitecomplex,needstoconsiderthecomponentstheuniquefeature,theaperturesize,thelengthtodiameterratio,theprecisionandroughnessrequestaswellasthescaleofproductionandsooneachkindoffactor.Oftenmustuseseveraldifferentmethodsregardingtheaccuracyrequirementhighholetocarryontheprocessinginorder.Thisdesign'scylinder,willpassthroughhalffinishedboring,thefinishedboring,thefinearticulationandthetrundlesuccessivelyfortheguaranteehole'sprecisionandthesurfacequalityandsoonfourworkingprocedureprocessingsWhentheenginebedcarriesonthemachine-finishingtothecomponents,isguaranteedthattheworkpieceworkingaccuracy,firstneedstoguaranteetheworkpieceholdsthecorrectpositionontheenginebed,thencausestheworkpieceinthecorrectpositionthroughtheclamporganizationfixedmotionless,thisdutyiscompletesbytheenginebedjig.Regardingthesingleunit,thesmallbatchproduction,shouldusetheuniversaljigasfaraspossible,likethismayreducetheworkpiecetheproductioncost.Butbecausetheuniversaljigissuitableeachkindofworkpiecetheattiretoclamp,thereforetimeclampoftencomparesspendsthetime,andoperatescomplex,theproductionefficiencyislow,alsoguaranteestheworkingaccuracywithdifficulty,forthisreasonmustdesigntheunitclamp.Keyword:Craft,datum,cuttingspecifications,localizationdatum,positionerror.四川理工学院毕业设计28目录中文摘要.....................................................................................................................Ⅰ英文摘要.....................................................................................................................Ⅱ概述...............................................................................................................................1第一章零件的分析...................................................................................................31.1零件的作用.........................................................................................................31.2零件的工艺分析..................................................................................................31.2.1加工方法的选择..............................................................................................31.2.2保证套筒表面位置精度的方法.........................................................................31.2.3防止套筒变形的工艺措施................................................................................4第二章工艺规程的设计...........................................................................................52.1确定毛坯的制造形式...........................................................................................52.2基准的选择.........................................................................................................52.2.1粗基准的选择.................................................................................................52.2.2精基准的选择.................................................................................................52.3制定工艺路线......................................................................................................52.4机械加工余量、工序尺寸及毛坯的确定...............................................................62.5确定切削用量及基本工时....................................................................................82.5.1工序1配料（35钢）...............................................................................82.5.2工序2车....................................................................................................82.5.3工序3深孔推镗......................................................................................142.5.4工序4滚压孔..........................................................................................162.5