防盗锁拨片冲孔、落料、弯曲模具设计

编号：毕业设计说明书题目：防盗锁拨片冲孔、落料、弯曲模具设计学院：专业：学生姓名：学号：指导教师：职称：I摘要在传统的工业生产中，工人生产的劳动强度大、劳动量大，严重影响生产效率的提高。随着当今科技的发展，工业生产中冲压模具的使用已经越来越引起人们的重视，而被大量应用到工业生产中来。冲压模具的自动送料技术也投入到实际的生产中，冲压模具可以大大的提高劳动生产效率，减轻工人负担，具有重要的技术进步意义和经济价值。本文介绍了防盗锁拨片冷冲压成形过程，并且简要分析了坯料形状、尺寸，排样、裁板方案，冲压工序性质、数目和顺序的确定。进行了工艺力、压力中心、模具工作部分尺寸及公差的计算，并设计出模具。还具体分析了模具的主要零部件（如凸凹模、卸料装置、垫板、凸模固定板等）的设计与制造，冲压设备的选用，凸凹模间隙调整和编制一个重要零件的加工工艺过程。列出了模具所需零件的详细清单，并给出了合理的装配图。通过充分利用现代模具制造技术对传统机械零件进行结构改进、优化设计、优化工艺方法能大幅度提高生产效率，这种方法对类似产品具有一定的借鉴作用。关键词：防盗锁拨片；冲压模具；模具设计；工艺IIAbstractInthetraditionalindustrialproduction,theworkerworksveryhardandtherearetoomuchworkforthem,sotheefficiencyislow.Withthedevelopmentofthescienceandtechnologynowadays,theuseofpunchingdieintheindustrialproductiongainmoreattention,andbeusedintheindustrialproductionmoreandmore.Self-actingfeedtechnologyofpunchingdieisalsousedinproduction,punchingdiecouldincreasetheefficiencyofproductionandcouldalleviatetheworkburden，soithassignificantmeaningintechnologicprogressandeconomicvalue.Thisarticledescribestheanti-theftlockpickscoldstampingprocess，andabriefanalysisoftheblankshape,size,layout,theConferenceBoard,stampingprocessesinnature,numberandsequencedetermination.Fortheprocess,thecenterofpressure,thediesizeandthetoleranceofthecalculation,designmold.Alsoanalyzesthemoldofthemaincomponents(suchaspunchanddieanddumpdevices,slates,Punchplate,etc.)designandmanufacturing,stampingequipmentselection,punch-gapadjustmentandestablishmentofavitalpartsmachiningprocess.Dierequirementssetoutadetailedlistofparts,andgivesareasonableassembly.Byfullyutilizingmodernmanufacturingtechnologytomoldtraditionalmechanicalpartsforstructuralimprovements,designoptimization,Processoptimizationmethodscangreatlyenhanceproductionefficiency,themethodofsimilarproductshavesomereference.Keywords:anti-theftlockpicks；punchingdie；Molddesign;processIII目录1综论....................................................11.1冲压的定义和特点...................................................11.2冲压基本工序.......................................................21.3冲压模具...........................................................31.3.1冲压模具的定义.....................................................31.3.2冲压模具的分类.....................................................31.4我国冲压技术的现状.................................................41.5冲压技术的发展趋势.................................................41.6冲压模具的设计步骤.................................................51.6.1取得必要的资料.....................................................51.6.2确定工艺方案及模具结构形式.........................................61.6.3进行必要的工艺计算.................................................61.6.4模具的总体设计.....................................................61.6.5模具主要零部件的结构设计...........................................61.6.6选定冲压设备.......................................................71.6.7绘制模具总图.......................................................71.6.8绘制各非零件的零件图...............................................71.6.9填写模具记录卡和编写冲压工艺文件...................................72冲压工艺设计............................................82.1冲压件的工艺性分析.................................................82.1.1结构工艺性.........................................................82.1.2尺寸精度与粗糙度...................................................92.1.3冲裁件的材料.......................................................92.2工艺方案的确定.....................................................93冲压模具总体结构设计...................................113.1模具类型..........................................................113.2操作与定位方式....................................................113.3卸料与出件方式....................................................113.4模架类型及精度....................................................124模具设计工艺计算.......................................134.1排样设计与计算....................................................134.2冲压力的计算......................................................164.3压力中心的确定....................................................184.4冲裁模间隙的确定..................................................20IV4.5刃口尺寸的计算....................................................214.5.1刃口尺寸计算的基本原则............................................214.5.2冲裁凸凹模工作部分尺寸计算........................................214.6弯曲部分刃口尺寸的计算............................................234.6.1弯曲回弹值........................................................234.6.2弯曲模具间隙......................................................234.7冲裁刃口设计......................................................245模具零件的设计.........................................265.1工艺零件的结构设计................................................265.1.1冲孔凸模2的设计..................................................265.1.2冲孔凸模1的设计..................................................265.1.3弯曲上模设计......................................................275.1.4弯曲下模的设计....................................................275.1.5凹模的设计........................................................275.1.6卸料板的设计......................................................275.1.7导料板的设计......................................................295.1.8始用挡料销..................