摘要本文是对精度要求相对较高，工艺比较复杂，生产批量大的双孔方形垫片进行设计。在对双孔方形垫片结构工艺性和材料加工工艺性正确分析的基础上，采用叙述与计算相结合的方式，分别对级进模的冲孔、落料等工序进行了从材料的选择到工作零件、定位零件、卸料零件、导向零件和安装固定零件等进行了设计。讨论了思路的可行性，并对其进行了整体和局部的结构设计。此级进模的设计，对以往的学习进行了一次综合性的运用，对今后的工作也有相当大的指导意义。通过对课题的冲压工艺的分析及模具零件的计算后，首先对主要的工作零件以及非标零件进行二维图的绘制，并且绘制本套模具的装配图；其次对主要工作零件的加工进行工艺卡片的编制。关键词：工艺分析； 零件设计； 模具装配IAbstractThis paper is the size of small, relatively high precision, the process is more complicated, mass production of electronic components large base unit for deep, piercing and flanging progressive die design.Base unit in the structure of materials and processing sexual correct analysis on the basis of Narration and calculated using a combination of methods, the Progressive Piercing Die incision, Drawing, flanging of the processes from the choice of materials to the design.of work components, positioning components and dump parts, oriented parts and fixed components .This design has good ideas from nature. This progressive die design, the study of the past, carried out a comprehensive application, for the future work of a great guiding significance.Based on the analysis of the topic of was stamping process after the calculation and mould parts,first of main job parts and non-standard parts,two-dimensional was drawing and plot the set of mould assembly drawings;Next to the main part was processing process card program-ming.Key words:Process analysis; Parts design; The mold assemblyI1 绪论 .12 冲压件工艺分析 .22.1 材料分析 .22.2 零件结构 .22.3 尺寸精度 .33 冲裁方案的确定 .43.1 冲裁工艺方案的确定 .43.2 冲裁工艺方法的选择 .44 模具总体结构的确定 .54.1 模具类型的选择 .54.2 送料方式的选择 .54.3 定位方式的选择 .54.4 卸料、出件方式的选择 .54.5 导向方式的选择 .55 工艺参数计算 .75.1 排样方式的选择 .75.1.1 排样及搭边值的计算 .75.1.2 步距的计算 .75.1.3 条料宽度的确定 .85.1.4 材料利用率的计算 .85.2 冲压力的计算 .95.2.1 总冲裁力的计算 .95.2.2 卸料力、推件力的计算 .105.2.3 总冲压力的计算 .115.2.4 初选压力机 .116 刃口尺寸计算 .136.