齿座冲压工艺分析及模具设计

洛阳理工学院毕业设计（论文）I齿座冲压工艺分析及模具设计摘要本论文对齿座进行了冲压模具设计。根据对齿座冲压工艺的分析比较，拟定了二套齿座的加工工艺方案，并进行了优化分析，确定了先落料冲孔在弯曲成形的工艺方案。本设计主要内容：根据对齿座零件冲裁件的分析选取合适的排样；根据工艺分析确定模具的选取那种复合模具结构；根据对工件所受冲裁力、顶件力、卸料力的计算，确定总的冲压力；根据计算确定工件压力中心；根据冲裁件设计工艺零件和选择合适结构零件；最后选取合适的压力机。本论文阐述了落料冲孔倒装复合模具的结构设计及工作原理。该套模具的优点冲孔废料能直接从凸凹模内落下，而冲裁件能被推件板从落料凹模推下，采用弹性卸料装置结构简单节省成本，生产率高等。关键词：冲压，复合模具，落料，冲孔洛阳理工学院毕业设计（论文）IITHESTAMPINGPROCESSANALYSISANDDIEDESIGNFORGEARHOLDERABSTRACTInthisthesis,thegearholderwasstampingdiedesign.Accordingtothegearholderstampingprocessanalysisandcomparison,developedtwosetsofgearholderprocessingprograms,andoptimizedanalysistodeterminethefirstblankingpunchinginthebendingprocessscheme.Designofthemaincontent:Basedonthegearseatpartsblankinganalysistoselecttheappropriatenesting;accordingtothetechnicalanalysistodeterminetheselectionofthekindofcomplexmoldstructure;sufferedunderblankingforceontheworkpiece,thetopmemberforce,unloadingforcecalculationstodeterminethetypeofmachine;accordingtothecalculationtodeterminetheworkpiececenterofpressure;designprocessbasedonblankingpartsandselecttheappropriatestructuralparts.Thispaperdescribestheflipcompositeblankingpunchingmolddesignandworkingprinciple.Theadvantagesofthismoldpunchingwastecanbedirectlyfromthepunchanddiewithinthefalling,blankingoptionboardcanbepushedfromtheblankingdieandeasiertopushtheleadtogodownwithflexibleunloadingdevicestructureissimplecostsavingsandhighproductivity.KEYWORDS:stamping，compositemold，blanking，punching洛阳理工学院毕业设计（论文）III目录前言................................................................................................1第1章概论....................................................................................31.1课题的任务............................................................................31.2国内外现状及发展趋势........................................................31.2.1国内外现状.................................................................31.2.2模具发展的趋势.........................................................41.3国内冲压行业存在的问题及应对措施.................................5第2章工件的冲压工艺性分析.......................................................72.1零件设计图...........................................................................72.2冲裁件的工艺分析................................................................82.3冲裁件的工艺方案和模具结构类型.....................................92.3.1冲裁件的工艺方案.....................................................92.3.1落料冲孔模具结构的选择........................................102.4冲裁件的排样设计.............................................................102.4.1排样方案...................................................................102.4.2材料利用率的计算和排样方案的确定....................112.5冲模压力中心的确定.........................................................122.6冲裁时的压力计算.............................................................142.6.1冲裁力的计算...........................................................142.6.2卸料力和推件力的计算............................................152.6.3压力机所需总冲压力的计算....................................152.7模具的凸、凹模刃口尺寸计算..........................................162.7.1凸凹模刃口尺寸计算原则........................................162.7.2凸、凹模加工时的工作部分尺寸............................162.8卸料橡皮的设计计算..........................................................17第3章冲裁模具的结构与设计.....................................................193.1落料凹模的设计.................................................................193.1.1凹模洞口形状的选择...............................................19洛阳理工学院毕业设计（论文）IV3.1.2凹模的外形尺寸.......................................................193.1.3凹模的固定方式........................................................203.2凸凹模的设计......................................................................213.2.1凸凹模的设计............................................................213.2.2凸凹模的固定方式....................................................213.3冲孔凸模的设计.................................................................223.3.1凸模的设计................................................................223.3.2凸模的固定方式........................................................23第4章模具零部件的选用与设计...............................................244.1冲模模架的型号与选择.....................................................244.2下模座的零件尺寸.............................................................244.3上模座的零件尺寸.............................................................254.4导柱与导套的选取.............................................................254.4.1导柱...........................................................................264.4.2导套...........................................................................264.5模柄的设计..........................................................................274.6顶件装置..............................................................................284.7模具其他零件设计与选择..................................................294.8紧固定位零件的选择..........................................................29第5章冲压模具压力机的选择.....................................................315.1压力机的选择原则..............................................................315.2冲模压力机的选择.............................