侧弯支座连续弯曲冲压工艺分析及模具设计.doc

1、太原工业学院毕业设计 侧弯支座连续模冲压工艺分析及模具设计摘要：冲压加工在国民经济各个领域中应用范围相当广，对国计民生具有重要意义。本次设计的是侧弯支座，零件成形工艺复杂，包括冲裁和多次弯曲。而且精度要求比较高，形状比较复杂，生产批量大。通过工艺性分析，有单工序模、复合模、级进模能符合生产要求，此次工序为落料、冲孔和弯曲。为了适应大批量生产的要求，并且考虑生产成本和效率，选择采用级进模制造。零件原料为2A12M，为硬铝，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结构和弹性卸料板，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

2、进模、落料，冲孔，弯曲IProgressive die stamping process analysis and die design of bending bearingABSTRACT：Stamping processing are widely used in various areas of the national economyactivities .Has the vital significance to the beneficial to the peoples livelihood.The design of the side bent pedestal.The form

3、ing process is complex, including blanking and bending. And the relatively high precision, complex shape, mass production. Through process analysis, a single die, compound die, progressive die can meet the production requirements, the procedures of blanking, punching and bending. In order to meet th

4、e requirements of mass production, and consider the production cost and efficiency, selection using progressive die manufacturing. Parts and raw materials for 2A12M, aluminum, using automatic feeders and automatic feeding device for feeding.The mold adopts four lead pillar and Four sets of lead and

5、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 ，blankin

6、g， blunt bore， bendingI目 录1 前言-11.1 冲压加工与模具设计简介-11.2冷冲压与模具技术国内外发展现状-31.3选题的意义-52 工艺分析、排样设计及方案对比确定-62.1 冲裁件工艺性分析-72.1.1 分析工件的技术要求-72.1.2零件材料的选用-82.1.3零件的结构工艺性分析-82.2 冲裁工艺方案的对比与确定-92.2.1冲裁工序的组合-92.2.2冲裁顺序的安排-102.2.3工艺方案的比较-102.3 冲裁件排样设计-11 2.3.1排样方法-112.3.2搭边值的选用-132.3.3条料宽度的确定-142.3.4步距的确定-152.3.5材料利用率的确定-163 冲压力及压力中心的确定-173.1 冲压力的计算-173.2 压力中心的计算-193.3 压力机的选择-213.3.1冲压设备类型的选择-213.3.2确定压力机设备的规格-224 模具结构设计-244.1 冲裁间隙-244.1.1冲裁间隙的影响-24I4.1.2冲裁间隙的选用-264.2 模具刃口尺寸的计算-274.2.1计算原则-274.2.2计算方法-284.2.3各工位凸凹模刃口尺寸计算-294.3 送料方式的确定-