机械5

落料冲孔弯曲级进模设计 摘要 此次设计为冲孔—落料—弯曲级进模，设计本模具充分利用了网上资源，图书馆藏书，更重要的是老师的谆谆教导，才成就了此模具。 在模具的设计过程中，首先，简要地概述了冲压模具在社会发展领域中的作用及其以后的发展前途。点明了模具的设计意义。然后进行工件的工艺分析，进而确定了工艺方案。计算出了模具工作部分的尺寸公差，设计出零部件，然后依据设计要求选择各个标准件。最后设计出模具的总装配图。在设计过程中需要计算冲压力，落料力，弯曲力及推件力，卸料力。从而判断模具各部件是否能承受压力机的作用。更重要的是模具工作零件的设计，以此为核心的问题，工作零件的误差将直接影响制件的质量。最后利于绘图工具AutoCAD制作了装配图和零件图，而节省了许多时间。 通过此次设计使我不仅掌握了冲压模具设计的一般流程，更好的学习好多在课本上没有学习的知识。 关键词:冲孔弯曲计算机绘图工艺分析 Blu
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nalysis 目录 绪论1 1.1现状1 1.2未来冲压模具制造技术发展趋势2 1零件的冲压工艺性分析5 2工艺方案的确定及工艺计算6 2.1工艺方案的确定6 2.2排样设计7 2.2.1毛坯的尺寸计算7 2.2.2确定零件的排样方案7 3工艺计算10 3.1冲裁工序总力的计算10 3.2、弯曲力的计算11 3.3、弹性橡胶板的计算12 4压力机的选择13 4.1初选压力机13 4.2压力中心的计算13 5工作零部件的设计与标准化16 5.1工作零部件的计算16 6主要工作机构的设计与标准化25 6.1定位装置的设计与标准化25 6.1.1始用挡料装置的设计与标准化25 6.1.2固定挡料销的设计与标准化25 6.1.3导正销的设计与标准化26 6.1.4导料板的设计与标准化27 6.2标准模架的选用28 6.3卸料装置的设计与标准化28 7装配图及压力机的校核30 7.1装配图30 7.2压力机的选择与校核30 8模具的装配与调试31 8.1，模具的装配31 8.2模具的调试31 8.2.1凸，凹模间隙的调试31 8.2.2冲模的试冲31 8.2.3试冲过程中的调整32 设计总结33 参考文献34 致谢35