无凸缘拉伸零件.

冲压模课程设计说明书

设计题目：无凸缘拉伸零件

学院：机电工程学院

专业：材料成型及控制工程

学号：

设计人：

指导老师：伍先明

完成日期：2012年12月25日

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内容摘要

本设计是无凸缘拉伸件的课程设计，根据设计任务书的相关要求，并结合自己的实习经验及课程上学习的理论知识来独立设计完成的。本文发扬了优秀课程设计的系统严密、数据精确、图标规范、文笔流畅、可读性好的优点。通过这一次的设计可以初步掌握一般简单塑模的一套完整的设计方法，构成冲压模的通用零件。

选用模架时应根据工作机的选用条件，技术参数，动力机的性能，经济性等因素，比较不同类型、塑件的外廓尺寸，质量，价格等，选择最适合的模架。凹模、凸模的设计比较复杂，对冲压零件的表面质量的影响很大，是冲压模设计的重点。

这次设计主要介绍了冲压模的构成，灵活并全面的运用了所学过的知识。并进一步培养了工程设计的独立能力，树立正确的设计思想，冲压模设计的方法和步骤，要求综合的考虑使用经济、工艺等方面的要求。

设计中存在的不足请老师能给予意见和建议。

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目录

一、冲压件工艺性分析·····················································

1、冲压件结构分析·······················································

2、冲压件尺寸精度分析及确定·············································

二、冲压工艺方案的确定··················································

1、计算毛坯尺寸························································

2、判断拉伸次数························································

3、确定首次拉深的毛坯和工序尺寸····································

4、确定工序加工方案····················································

三、确定排样裁板方案以及材料利用计算····································

1、排样方式的确定······················································

2、搭边值确定··························································

3、材料利用率··························································

四、冲压力的计算························································

五、工作零件刃口尺寸的计算···············································

1、落料·································································

2、拉伸·································································

六、冲压设备的选择·······················································

1、压力机吨位计算·······················································

2、滑块行程·····························································

3、装模高度····························································

4、压力机功率的核算·····················································

七、模具结构选择·························································

1、冲模结构形式·························································

2、定位方式······························································

3、卸料、出件方式的选择··················································

4、导向装备的选择·······················································

八、主要零部件的设计······················································

1、工作零件·····························································

2、固定零件······························································

3、卸料零件······························································

4、定位零件······························································

5、模架及其部件··························································

6、模具闭合高度校核······················································

7、模具安装尺寸校核······················································

九、模具装配图·····························································

十、模具工作过程···························································

十一、设计体会和总结·······················································

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