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学校代码：10410

序 号：20055015

本 科 毕 业 设 计

题目： 冲孔落料拉深复合模

学 院： 工 学 院 姓 名： 黄学亮 学 号： 20055015 专 业： 机械设计制造及其自动化 年 级： 机 制051 指导教师： 吴彦红

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二OO九 年 五 月

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冲孔落料拉深复合模

目 录

前言 ·

1．设计课题·········································1 1．1 设计任务书···································2 2． 工艺方案分析及确定····························3 2．1 件的工艺分析··································3 2．2 工艺方案的确定·······························4 2.3 冲压件坯料尺寸的确定························4 2. 4 拉深次数的确定·····························4 2.5 排样的确定·····································5 3.工艺设计与计算··································7 3．1 冲裁的方式与冲压力的计算···················7

3.1.1、冲裁方式与冲压力的计算························7 3.1.2.力的计算·······································7 3.1.3、卸料力、推料力和顶件力的计算··················8 3.1.4、 压力中心的计算·······························9

3．2 计算各主要零件的尺寸·······················9

3.2.1、计算落料凸、凹模的工作部分的尺寸·············10 3.2.2、计算拉深凸、凹模的刃口尺寸的确定·············11 3.2.4、凸凹模选材，热处理及加工工艺过程·············11 3.2.5、条料宽度的设计·······························12 3.2.6、导料板的导料尺寸为···························14 3.2.7、推杆的选材，热处理工艺方案···················15 3.2.8、工艺方案如下·································15 3.2.9、模柄的确定···································15 3.2.10、冲压设备的选用······························16 3.2.11、模具的闭合高度的计算························16 3.2.12、冲模模架的选用······························16