机械5

冰箱用电控板的冲压模具设计 摘要 本设计是对给定的冰箱用电控板产品图进行冲压模具设计。冲压工艺的选择是经查阅相关资料和和对产品形状仔细分析的基础上进行的；冲压模具的选择是在综合考虑了经济性、零件的冲压工艺性以及复杂程度等诸多因素的基础上进行的；产品毛坯展开尺寸的计算是在方便建设又不影响模具成型的前提下简化为所熟悉的模型进行的。文中还对冲压成型零件和其它相关零件的选择原则及选择方法进行了说明，另外还介绍了几种产品形状的毛坯展开尺寸计算的方法和简化模型，以及冲压模具设计所需要使用的几种参考书籍的查阅方法。 关键词：冰箱用电控板、冲压模具、工艺、展开尺寸 Abstract The desig
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n for refrigerator 目录 摘要1 Abstract 2 前言4 第一章、弯曲件的工艺分析7 1.1.弯曲件零件图7 1.2.弯曲件工艺分析8 第二章、弯曲件的工艺方案9 第三章、各工序模具结构形式的确定10 3.1.落料冲孔模如下图10 3.2.弯曲模如下图12 第四章、必要的尺寸计算14 4.1.计算毛坯尺寸14 4.2.排样设计与计算15 4.2.1.排样方法15 4.2.2.搭边值的确定16 4.2.3.送料步距与条料宽度计算16 4.2.4.材料利用率及排样草图17 4.3.冲裁力、压力机的选取及压力中心计算17 4.3.1.冲裁力的计算17 4.3.2.卸料力、推件力和顶件力18 4.4.弯曲模具19 4.5.冲压设备的选择20 4.6.确定模具的压力中心20 4.7.冲模尺寸及公差的计算22 4.8.导柱、导套26 4.9.定位设计27 第五章、模具总体结构设计28 5.1.模具类形的选择28 5.2.定位方式的选择28 5.3.卸料、出件方式的选择28 5.4.导柱、导套位置的确定28 第六章、模具的装配29 6.1.模装配29 6.2.模装配29 结束语30 设计心得31 致谢32 参考文献33