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本科毕业设计题目：医疗器盒冲压工艺与模具设计学院:材料与冶金学院专业:材料成型及控制工程学号:学生姓名:指导教师:日期:2015.03.01-2015.06.01武汉科技大学本科毕业设计I摘要在日常生活中医疗器盒等盒形零件的使用非常频繁，因此盒形件的冲压模具设计显得比较重要。在冲压成型过程中，由于盒形件坯料受力沿周边是不均匀的，这无疑大大增加了盒形件的冲压模具设计的难度。医疗器盒是中心对称的矩形盒，底部设计有加强筋。矩形盒部分通过拉深完成，底部加强筋通过胀形完成。医疗器盒的材料选择10钢。由于医疗器盒的高度比较小，经核算可一次拉深成型。考虑到零件尺寸和生产需求，采用正装落料拉深胀形复合模，正装模具可提高模具使用寿命并有效保证零件质量。在确定模具形式后，进行了坯料尺寸计算，排样设计，冲裁力、推件力顶件力、拉深力、胀形力计算。通过工艺力的计算选择合适的压力机。根据医疗器盒的尺寸以及之前的工艺力计算，确定落料、拉深和胀形工作零件的刃口尺寸。之后完成工作零件（如拉深凸模、落料凹模、凸凹模和胀形凸、凹模）、定位零件、卸料版、固定板等部件的合理结构设计并绘制零件图。最后完成各个部件组合的整体装配图。关键词：医疗器盒；冲压工艺；拉深；模具设计武汉科技大学本科毕业设计IIAbstractMedicaldevicebox-shapedpartsisveryfrequentinthedailylife,sothestampingdiedesignofbox-shapedpartsismoreimportant.Inthestampingprocess,thebox-shapedblankforcealongtheperipheryisnotuniform,whichleadstothestampingdiedesignofboxshapedpartsincreasesthedifficultyofmany.Themedicaldeviceboxisthecenteroftherectangularbox,andtheribreinforcementisdesignedinbottom.Therectangularboxisfinishedbydrawingandthebottomisstrengthenedbybulging.10steelisselectedofmedicalmaterialsdevicebox-shapedparts.Becausethemedicalboxheightisrelativelysmall,itcanbecompletedbyadeepdrawing.Consideringthesizeofpartsandproductionrequirements,adoptingblanking-drawingcompounddie,whichcanenhancetheservicelifeofthedieandeffectivelyensurethequalityofparts.Afterthemoldformisfinished,theblanksizecalculation,layoutdesign,blankingforce,pushingforceandkickingforce,drawingforce,bulgingforcecalculationarecompletedlater.Choosetheappropriatepressthroughthecalculationofthetechnologicalforce.Accordingtothesizeofthemedicaldeviceboxandthecalculationofthepriorprocessforce,thecuttingedgedimensionsoftheblanking,drawingandbulgingpartsaredetermined.Thencompletetheworkingparts(suchasdrawingpunch,fallsthematerialofdie,punchandbulge,die),positioningparts,loadingandunloadingmaterialversion,afixedplateandothercomponentsofreasonablestructuredesignanddrawthepartdrawing.Finally,theoverallassemblydrawingofthecombinationofeachcomponentiscompleted.Keywords：Medicalbox;Stampingtechnology;Drawing;Molddesign武汉科技大学本科毕业设计III目录1绪论......................................................................................................................................11．1冲压工艺的基本概念............................................................................................11.2冲压工艺的优缺点...................................................................................................11.2.1优点................................................................................................................11.2.2缺点................................................................................................................11.3冲压成型的缺陷及控制...........................................................................................21.3.1冲压成型的典型缺陷....................................................................................21.3.2关键缺陷的解决措施....................................................................................21.4冲压成型的主要设备...............................................................................................31.4.1曲柄压力机....................................................................................................31.4.2剪裁设备........................................................................................................31.5冲压成型的研究现状...............................................................................................31.6冲压成型的发展趋势...............................................................................................32设计任务及分析..................................................................................................................52.1设计任务...................................................................................................................52.2工艺性分析...............................................................................................................52.2.1材料性能分析................................................................................................52.2.2结构工艺性分析...............................................................................................62.3工艺方案的选择.......................................................................................................63.工艺计算.............................................................................................................................83.1拉深次数的确定.......................................................................................................83.1.1校核盒形一次拉深成型................................................................................83.1.2校核盒形角部一次拉深成型........................................................................93.2毛坯尺寸计算...........................................................................................................93.2.1修边余量的计算............................................................................................93.2.2毛坯尺寸的确定..........................................................................................103.3排样与材料利用率..........................................................................