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1、河南理工大学本科毕业设计（论文）说明书I摘要摘要本文介绍了平底铁杯冲压工艺，分析了原冲压工艺的缺陷，设计了新的落料、拉深、冲孔复合模。该模具设计制造简便易行，落料、拉深、冲孔效果好，能极大地提高生产效率，但落料拉深凸凹模设计较为重要，设计中充分考虑了其落料拉深模口形状。全文共分六章，通过阐述落料拉深冲孔复合模的工艺设计与结构设计过程，对拉深凸模、落料凹模、落料拉深凸凹模等模具主要的成型零件以及各种标准零件进行了设计计算和选择，确定落料拉深冲孔复合模的整体结构框架，最后对复合模装配和工艺性进行了分析并绘制了模具总装图和非标准件零件图。本文设计的复合模通过理论分析和大量的工程实践探索，可以将传统的
2、分模加工合二为一，使落料、拉深、冲孔一次成形，避免了分模加工中定位误差的生产，从而保证了质量，降低了成本，提高了生产效率，又可减少设备投资和模具制造费用。关键词关键词：平底铁杯，冲压，复合模，落料，拉深，冲孔河南理工大学本科毕业设计（论文）说明书IIAbstract This present paper introduce the stamping technics of a flat bottom iron cup.The defects of former stamping technics are analysed.A new compound die is designed with
3、blanking and drawing and punching.The die design and manufacture simply with well blanking, drawing and punching.It can greatly improve the production efficiency,but the design of blanking and drawing die is very important.It should fully consider the shape of blanking and drawing die.The paper alto
4、gether is divided into six chapters.Through process design and structure design of the compound die drawing process falls on punching, drawing male die, blanking die, blanking and drawing die molding parts main mold and a variety of standard parts of the design calculation and selection, determine t
5、he overall framework of compound die punching down the drawing.At the end of the compound die assembly and process are analyzed and to draw the mold assembly drawing and non standard parts drawing.In this paper, the design of compound die through theoretical analysis and engineering practice of expl
6、oration, can the traditional mold processing become, the blanking, drawing, punching a forming, avoid the positioning mould processing error production, so as to ensure the quality, reduce the cost, improve production efficiency, and reduce the investment in equipment and mold manufacturing costs.Ke
7、y words : falt bottom iron cup，stamping，compound die，blanking，drawing，punching河南理工大学本科毕业设计（论文）说明书III目目 录录前言.11 绪 论.21.1 冲压的概念及特点.21.2 冲压的基本工序及模具 .31.3 冲压技术的应用与发展.42 工艺方案的分析与确定.72.1 零件的工艺分析.72.2 工艺方案的确定.83 主要工艺参数计算.93.1 毛坯尺寸的计算.93.2 确定拉深次数.103.3 排样及材料利用率.103.4 工序压力计算.123.5 模具压力中心计算.134 模具的总体设计.144.1 冲压设备的选择.144.2 模具结构形式的确定.164.3 冲模设计中应采取的安全措施 .175 主要零部件设计及计算.195.1 主要零部件的设计.195.1.1 冲裁模刃口尺寸的计算 .195.1.2 落料凹模设计.225.1.3 冲孔凸模设计.
