摘 要本次设计生产的是侧弯支座，零件外形虽然比拟简单，但成形工艺复杂，包括冲裁和屡次弯曲。而且精度要求比拟高，形状比拟复杂，生产批量大。通过工艺性分析，工序为落料、冲孔和弯曲。为了适应大批量生产的要求，采用级进模制造，能很好的解决上述问题。原料为2A12M，采用自动送料器和自动送料装置送料。模架采用四导柱四导套构造和弹性卸料板，并在卸料板和固定板之间设置辅助导向机构的小导柱和小导套，保证卸料板有足够的运动精度。关键词：侧弯支座，级进模、落料，冲孔，弯曲ABSTRACTWhat this design produces is a lateral support, the accuracy has higher request, the shape is more plicated, produce batch quantity big, pass craft analysis, work preface all for fall to anticipate with blunt bore and bending. Adopting the class enters a mold manufacturing, can be good to resolve these problems. The raw material selects the 2A12M material, the adoption sends to anticipate a machine automatically and sends to anticipate device to send to anticipate automatically.The mold adopts four lead pillar and Four sets of lead and flexibility of the bead, and be unloading to anticipate plank and fix plank of the constitution lend support to direction organization-small lead pillar with small lead a set, assurance unloads to anticipate the plank contain enough sport accuracy.Key words: lateral support ，progressive die ，fall to anticipate， blunt bore， bending目 录1 绪论-11.1 冲压加工与模具设计简介-11.2 冷冲压与模具技术国外开展现状-21.3 选题的意义-32 工艺分析、排样设计及方案比照确定-42.1 冲裁件工艺性分析-42.1.1 分析工件的技术要求-52.1.2零件材料的选用-52.1.3零件的构造工艺性分析-5 2.2 冲裁工艺方案的比照与确定-62.2.1冲裁工序的组合-62.2.2冲裁顺序的安排-72.2.3工艺方案的比拟-72.3 冲裁件排样设计-82.3.1排样方法-82.3.2搭边值的选用-92.3.3条料宽度确实定-102.3.4步距确实定-112.3.5材料利用率确实定-113 冲压力及压力中心确实定-133.1 冲压力的计算-13 3.2压力中心的计算-15 3.3 压力机的选择-163.3.1冲压设备类型的选择-163.3.2确定压力机设备的规格-174 模具构造设计-184.1 冲裁间隙-184.1.1冲裁间隙的影响-184.1.2冲裁间隙的选用-194.2 模具刃口尺寸的计算-214.2.1计算原那么-214.2.2计算方法-214.2.3各工位凸凹模刃口尺寸计算-224.3 送料方式确实定-254.4 定位方式的选择及定位装置-254.5 卸料方式的选择-254.6 模架的选择-254.7 卸料板及其配套设施的选择-26