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1、本文介绍的模具实例结构简单实川,使川方便可靠,旨先根据工件图算工件的展开尺寸,再根据展开尺寸算该零件的压力中心,材料利用率,画排样图。根据零件的几何形状要求和尺寸的分析,采用复合模冲压,这样有利于提髙牛产效率,模具设计和制造也相对于简单。当所冇的参数计算完后,对模具的装配方案,对主要零件的设计和装配要求技术要求都进行了分析。在设计过程中除了设计说明书外,还包括模具的装配图,非标准零件的零件图,工件的加工工艺卡片,工艺规程卡片,非标准零件的加工工艺过程卡片。关键词:复介模;冲压;设计最佳答案Inthispassage,
2、areliableandpracticalsamplemouldingisintroduced.Firstlycalculatetheoveralldimensionofworkpieceaccworkpicedrawing,thenlocatethecenterpressurepoint.Drawthelayoutinconsiderationofmaterialutilization.Analyseworkpieceprofileandspecificdimensionsandpunchwithcompoundm
3、oulding.It'shighofefficiencyandsimpleinproduction.Withallparametersdone,analysisontheassemblingofthemouldsandrequirementofmainpartsdesignandassemblingwasmade.Besidesguidebookondesignwork,assemblingdrw.ofmouldings,nonstandardpartsdrawings,machiningcharts,process
4、ingcardsandnonstandardpartsmachiningcardsarealsoincluded.StrippersTherearetowtypesofstrippers:fixedorspring-operated.Theprimaryfunctionofeithertypeistostriptheworkpiecefromacuttingornoncuttingpunchordie.Astripperthatforcesapartoutofadiemayalsobecalledaknockout,
5、aninsidestripper,oranejector・Besidesitsprimaryfunction,astrippermayalwoholddownorclamp,posirion,orguidethesheet,strip,orworkpiece・Thestripperisusuallythesamewidthandlengthasthedieblock,Insimplerdies,thestrippermaybefastenedwiththesamescrewsanddowelsthatfastenth
6、edieblock,andthescrewheadwwillbecounterboredintothestripper,Inmorecompextoolsandwithsectionaldieblocks,thedieblockscrewswillusuallybeinverted,andthestripperfastenerwillbeindependent・Thestripperthicknessmustbesufficienttowithstandtheforcerequiredtostripthestript
7、hestockfromthepunch,pluswhateverisrequiredforthestockstripchannel.Exceptforveryheavytoolsorlargeblankareas,thethicknessrequiredforscrewheadcounterbores,intherangeof3/8”to5/8”(9.5mm一16mm),willbesufficient.Theheightofthestockstripchannelshouldbeatleast1.5timesthe
8、stockthickness.Thisheightshouldbeincreasedifthestockistobeliftedoverafixedpinstop.TheChannelwidthshouldbethewidthofthestockstrip,plusadequateclearancetoallowforvariationsint