江阴职业技术学院毕业设计（论文）说明书课题：安全带卡扣冲压模设计专业模具设计与制造学生姓名班组学号指导教师沈杏林、朱国兴完成日期2015.12.30摘要本次设计为汽车安全带卡扣的冲压模具设计，设计了一套冲孔、落料的复合模具。模具冲压件模具的分析与模具设计的选择，模具类型的设计将在设计过程中的各个部分都表现出来。这件模具的性能靠得住，运转安稳，使产品质量和生产效率有了很大进步，让劳动强度与出产成本下降。关键词：安全带；卡扣；复合模；设计AbstractDiestampingdieanalysisandselectionofdiedesign,diedesignwillbeinthedesignprocessofthevariouspartsareshown.Thismoldperformancereliable,smoothoperation,theproductqualityandproductionefficiencyhasbeengreatlyimproved,sothatthelaborintensityandproductioncostdecreased.Keywords:safetybelt;clasp;compositemold;design目录第一章绪论.........................................................1第二章工艺分析.....................................................32.1材料分析...................................................32.2零件结构...................................................32.3尺寸精度...................................................3第三章冲裁方案的确定..............................................53.1冲裁工艺方案的确定.........................................53.2冲裁工艺方法的选择.........................................5第四章模具总体结构的确定..........................................64.1模具类型的选择.............................................64.2送料方式的选择.............................................64.3定位方式的选择.............................................64.4卸料方式的选择.............................................64.5导向方式的选择.............................................6第五章工艺参数计算................................................75.1排样方式的选择.................................................75.1.1搭边值的确定.............................................75.1.2材料利用率的确定.........................................85.2冲压力的计算..................................................95.2.1总冲裁力的计算...........................................105.2.2卸料力、推件力的计算.....................................105.2.3总冲压力的计算...........................................115.2.4初选压力机...............................................115.2.5压力中心的确定...........................................12第六章刃口尺寸计算................................................146.1冲裁间隙的确定............................................176.2刃口尺寸的计算及依据与法则................................18第七章主要零部件设计..............................................197.1凹模设计.......................................................197.1.1凹模外形的确定...........................................197.1.2凹模刃口结构形式的选择...................................197.1.3凹模精度与材料的确定.....................................197.2凸模的设计.....................................................227.2.1凸模结构的确定...........................................227.2.2凸模材料的确定...........................................227.2.3凸模精度的确定...........................................227.2.4凸模高度的确定...........................................227.3凸凹模设计.....................................................237.3.1凸凹模外形的确定.........................................237.3.2凸凹模材料的选取........................................
