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轴端盖罩冷冲压工艺及模具设计论文[带图纸].doc

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轴端盖罩冷冲压工艺及模具设计论文[带图纸].doc

编号无锡太湖学院毕业设计(论文)题目轴端盖罩冷冲压工艺及模具设计信机系机械工程及自动化专业学号学生姓名指导教师(职称副教授)(职称)2013年5月25日无锡太湖学院本科毕业设计(论文)诚信承诺书本人郑重声明所呈交的毕业设计(论文)轴端盖罩冷冲压工艺及模具设计是本人在导师的指导下独立进行研究所取得的成果,其内容除了在毕业设计(论文)中特别加以标注引用,表示致谢的内容外,本毕业设计(论文)不包含任何其他个人、集体已发表或撰写的成果作品。班级机械96学号0923265作者姓名2013年5月25日II摘要冲压生产是一种先进的金属加工方法。它是利用模具和冲压设备对板材金属进行加工,通过冲压生产可以获得所属要的零件形状和尺寸。本课题是轴端盖罩零件的冲压模具的设计,本产品外形是圆形,根据设计零件的尺寸、材料、生产批量等要求,分析零件的工艺性,根据工件的形状和批量,对模寿命有一定要求,故采用有废料排样方法,确定冲裁工艺路线方案,从而设计一套复合模具,本次模具选取的是简单的二次拉深工艺模,综合考虑冲压件的形状特点、尺寸大小、精度要求及冲压设备与制模条件,操作方便与安全。模具1落料拉深复合模和模具2第2次拉深模,第一副模具是落料拉深复合模,卸料采用弹性(弹簧)卸料结构,工件采用推件块刚性推出,推出机构装在上模部份,压边装置装在下模部份,采用弹性(弹簧)结构,同时也起向上推件作用。条料采用手动送料装置,样时工件之间以及工件与条料侧边之间留下的余料叫做搭边。搭边的作用是补偿定位误差,保证冲出合格的工件。还可以使条料有一定的刚度,便于送进。由于第一副模具是落料拉深复合模,只需考虑落料的排样,故采用单排直排方式。采用单排直排方式在保证工件的尺寸和形状位置精度要求的同时,尽量的提高材料的利用率和生产效率。随着计算机技术的不断发展,采用CAD/CAE/CAM一体化技术可以准确、快速的完成模具设计制造。本文主要是介绍说明了轴端盖罩零件成形的各个工序及其模具的设计及尺寸计算,在结构设计的同时,对主要零件的设计和装配要求技术进行了分析。设计时考虑到模具设计合理、简单,便于制造和修模,有利于缩短模具生产制造周期,降低成本。关键词盖罩零件冲压工艺复合模模具设计IIIAbstractStampingproductionisakindofadvancedmetalprocessingmethod.Itistheuseofmouldandstampingequipmenttocarryontheprocessingofsheetmetal.Throughstampingproduction,wecangettheshapeandsizeofthepartswhichweneed.Thistopicisaboutthedesignofthestampingmouldfortheshaftendcoverparts.Accordingtorequirementsofpartsize,material,productionbatch,etc.weshouldanalyzethemanufacturabilityofparts,anddetermineamediummanufactureroutetodesignasetofcompoundmould.Themouldselectionofdeepdrawingtechnologyisasimplequadraticmodel,consideringtheshapeofthestampingcharacteristics,size,accuracyandstampingequipmentandmoldingconditions,convenientoperationandsafety.Mold1blankingdeepdrawingdieandmould2theseconddrawingdie,firstdeputydieblanking,deepdrawingcompositemodulusisdischargingstructureofelasticunloadingspring,artifactsusingpushapieceofrigid,launchmechanismmountedontheupperdie,blankholderdeviceinstalledinmoldparts,thestructureofelasticspring,andpushuparoleaswell.Manualfeedingdeviceforthestripmaterial,articlesamplebetweenartifactsandartifactandbetweenthematerialsideofexcessstockiscalledon.Onthepositionerrorcompensation,ensurerushedoutofthequalifiedparts.Canalsomakethestripmaterialhascertainrigidity,easytointo.Asthefirstvicemouldisblanking,deepdrawingcompositemodulus,justconsiderthelayoutofblanking,thesinglestraightlinemethodisadopted.Wenotonlyshouldensurethesizeandshapeoftheworkpiecepositionaccuracyrequirements,butalsotrytoimprovematerialutilizationandproductionefficiency.Alongwiththeunceasingdevelopmentofcomputertechnology,itisaccurateandfasttousetheintegrationtechnologyofCAD/CAE/CAMtocompletethediedesigningandmanufacturing.Thispapermainlyillustratestheshaftendcoverpartsformingprocessandthemoldofeachdesignandsizecalculation,thestructuraldesignofthemainparts,meanwhile,thedesignandassemblyrequiredtechnologiesareanalyzed.Whendesigning,weconsiderthatthediestructureshouldbereasonableandsimpletomanufactureandrepairandadvantageoustoreducethemanufacturingcycleofdieproductionandthecosts.KeywordsshaftendcoverpartsStampingprocessCompositemodulusDiedesignV目录摘要..................................................................................................................................................................IIAbstract.........................................................................................................................................III目录............................................................................................................................................V1绪论.............................................................................................................................................11.1本课题的研究内容和意义..................................................................................................11.2国内外的发展概况..............................................................................................................31.3本课题应达到的要求..........................................................................................................52冲压工艺设计.............................................................................................................................62.1冲压件简介..........................................................................................................................62.2冲压件的工艺性分析..........................................................................................................82.3冲压工艺方案的确定........................................................................................................102.4冲压工艺计算....................................................................................................................112.4.1工件的毛坯尺寸计算...............................................................................................112.4.2工序分析...................................................................................................................122.4.3拉深尺寸计算...........................................................................................................132.4.4工序汇总...................................................................................................................172.4.5各工序尺寸公差的确定...........................................................................................172.5产品所需模具....................................................................................................................173落料拉深模设计.......................................................................................................................203.1模具结构............................................................................................................................203.2确定其搭边值....................................................................................................................203.3确定排样图........................................................................................................................213.4材料利用率计算................................................................................................................223.5凸、凹模刃口尺寸的确定................................................................................................223.5.1落料部份凸、凹模刃口尺寸的确定........................................................................223.5.2拉深凸、凹模工作部分尺寸及其公差...................................................................243.6落料拉深复合模冲压力....................................................................................................253.6.1落料部分冲压力.......................................................................................................253.6.2拉深部分冲压力.......................................................................................................263.6.3落料拉深复合模总冲压力.......................................................................................273.7压力机选用........................................................................................................................273.8压力中心计算....................................................................................................................293.9落料拉深模主要零部件的结构设计................................................................................293.9.1落料凹模的结构设计...............................................................................................293.9.2落料凸模的结构设计...............................................................................................313.9.3条料定位零件的设计...............................................................................................313.9.4落料卸料板设计.......................................................................................................32

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