空气滤清器壳正反拉伸复合模设计毕业论文.doc

湖南工学院2006届毕业设计说明书题目院(系)、部：机械工程系学生姓名：刘寸法指导教师：刘吉兆职称教授专业：机械设计班级：机设0301完成时间：2006年5月摘要随着中国工业不断地发展，模具行业也显得越来越重要。本论文便是设计加工空气滤清器壳的模具。首先对加工零件进行了加工工艺和结构工艺的分析。通过计算毛坯尺寸和拉深系数提出了四种方案，最后确定采用落料、正反拉深复合模。对模具的排样做出了合理的布置，使材料利用率达到较高的水平。计算了冲压过程中所需要的各种冲压工艺力，包括落料力、卸料力、压边力、拉深力、顶料力等，并对压力机进行了合理的吨位初选。复合模在结构上采用了正装的形式，计算出了落料、正拉深和反拉深工作部分的尺寸。对模具的闭合高度进行了合理的确定，还设计出模具的主要零件落料凹模、凸凹模、反拉深凸模、反拉深凹模、凹模固定板等。列出了模具所需零件的详细清单，并给出了合理的装配图。由于拉深的深度较大，对压力机的电机也进行了功率校核并提出了润滑的附加工序，能使拉深顺利完成。最后对模具的一个主要零件导套进行了简单的加工工艺路线的制定。本设计对于采用单动压力机进行正反拉深具有一定的参考作用。关键词毕业论文；模具设计；复合模；正反拉深ABSTRACTDevelopsunceasinglyalongwiththeChineseindustry,themoldprofessionalsoappearsmoreandmoreimportantly.Thepresentpaperthenisdesignstheprocessingairfiltershellthemold.Firsthascarriedontheprocessingcraftandthestructurecraftanalysistotheprocessingcomponents.Proposedthroughthecomputationsemifinishedmaterialssizeandthedrawingcoefficientfourkindofplans,finallydeterminedusesfallsthematerial,theproandcondrawingsuperposabledie.Hasmadethereasonablearrangementtothemoldplatoontype,enablesthematerialusefactortoachievethehighlevel.Hascalculatedeachrammingcraftstrengthwhichintherammingprocessneeds,includingfallsnearbythematerialstrength,theex-denningstrength,thepressurethestrength,thedrawingstrength,thetopmaterialstrengthandsoon,andhascarriedonthereasonabletonnageprimaryelectiontothepress.Thesuperposablediehasusedthetruethingforminthestructure,calculatedfellthematerial,thedrawingandthecounter-drawingeffectiverangesize.Closedhascarriedonthereasonabledeterminationhighlytothemold,butalsodesignsthemoldthemajorpartstofallthematerialconcavemold,theconvex-concavemold,thecounter-drawingraisedmold,thecounter-drawingconcavemold,theconcavemolddeadplateandsoon.Listedthemoldtoneedthecomponentsthedetaileddetailedlist,andhasproducedthereasonableassemblydrawing.Becausethedrawingdepthisbig,alsocarriedonthepowertothepresselectricalmachinerytoexamineandtoproposethelubricationattachmentworkingprocedure,couldcausethedrawingsmoothlytocomplete.Finallyledthewraptomoldmajorpartstocarryonthesimpleprocessingcraftrouteformulation.Thisdesignregardingusesthesingleactingpresstocarryontheproandcondrawingtohavethecertainreferencefunction.Keywordsgraduationthesis；molddesign；superposabledie；proandcondrawing目录1分析零件的工艺性······················································································12确定工艺方案····························································································22.1计算毛坯尺寸····················································································22.2计算拉深次数····················································································42.2.1正拉深·····················································································42.2.2反拉深·····················································································52.3确定工艺方案····················································································53主要工艺参数的计算···················································································63.1确定排样、裁板方案··········································································63.2确定各中间工序尺寸··········································································83.3计算工艺力、初选设备·······································································93.3.1落料、正拉深过程·····································································9(1)落料力····················································································9(2)卸料力····················································································9(3)拉深力··················································································10(4)压边力··················································································103.3.2反拉深过程············································································11(1)反拉深力···············································································11(2)顶料力··················································································113.3.3拉深功的计算·········································································113.3.4初选压力机············································································114模具的结构设计·······················································································134.1模具结构形式的选择········································································134.2模具工作部分尺寸计算·····································································134.2.1落料······················································································134.2.2正拉深···················································································154.2.3反拉深···················································································165选用模架、确定闭合高度··········································································165.1模架的选用·····················································································165.2模具的闭合高度···············································································165.3压力中心························································································176模具的主要零部件结构设计·······································································176.1落料凹模························································································176.2凸凹模···························································································186.3反拉深凸模·····················································································196.4反拉深凹模·····················································································206.6上垫板···························································································236.7凹模固定板·····················································································247模具的整体安装·······················································································257.1模具的总装配··················································································257.2模具零件························································································26