I毕业设计说明书接线端子的冲压工艺与多工位级进模设计III目录摘要....................................................................................................................1ABSTRACT....................................................................................................2第1章绪论..........................................................................................................31.1冲压的概念特点及应用..........................................................................31.2冲压的现状及发展方向..........................................................................41.3模具发展的现状......................................................................................8第2章工艺分析及冲压方案分析..................................................................102.1制件的工艺性分析...............................................................................102.1.1冲裁部分的工艺性分析..............................................................102.1.2弯曲部分的工艺性分析..............................................................102.1.3冲裁件的精度与粗糙度..............................................................112.1.4冲裁件的材料..............................................................................112.1.5工艺方案确定..............................................................................11第3章冲压模具总体结构设计......................................................................123.1模具类型................................................................................................123.2操作与定位方式....................................................................................123.3卸料与出件方式....................................................................................123.4模架类型及精度....................................................................................12第4章冲压模具工艺与模具设计计算..........................................................134.1排样........................................................................................................134.2凸凹模刃口尺寸计算............................................................................144.2.1冲裁模刃口尺寸计算..................................................................144.2.2弯曲模尺寸计算..........................................................................184.3冲压力的计算........................................................................................194.3.1冲裁力的计算..............................................................................194.3.2弯曲力的计算..............................................................................214.4压力中心的计算....................................................................................21第5章模具主要零件设计及标准的选用......................................................245.1卸料板....................................................................................................245.2导料板....................................................................................................265.3凸模结构设计........................................................................................265.4垫板结构设计........................................................................................275.5导正销.....................................
