下支架冲压工艺分析及冲孔模具设计.docVIP

中北大学 课程设计任务书 学年第 学期 学 院： 专 业： 学 生 姓 名： 学 号： 课程设计题目： 下支架冲压工艺分析及冲孔模具设计 起 迄 日 期： 课程设计地点： 指 导 教 师： 系 主 任： 下达任务书日期: 2010 年 12 月20 日 4．主要参考文献： [1] 王树勋等合编　典型模具结构图册　第１版　广州：华南理工大学出版社，2005 [2] 王孝培主编　冲压手册　第２版　北京：机械工业出版社，2005 [3] 翁其金等主编 冲压工艺与模具设计 第1版 北京：机械工业出版社，2008 [4] 模具设计手册和国家标准：、《冷冲模国家标准》 [5] 中国模具工业协会标准件委员会编 《中国模具标准件手册》 第1版 上海：上海科学普及出版社，1989 5．设计成果形式及要求： 下支架冲孔模图纸1份； 下支架冲压工艺分析及冲孔模具设计课程设计说明书1份； 冲压工艺卡一份 6．工作计划及进度： 2010年12月日月日月日日日月日月日月日月日 2 冲压成型工艺及模具设计工艺································2 2. 1 冲压工艺分析··············································2 2. 2 冲压方案的确定············································2 2. 3 确定模具类型及结构形式····································2 2. 4 模具零部件结构设计········································3 2. 4. 1 凹模和凸模刃口尺寸计算····································4 2. 4. 2 凹模整体尺寸计算··········································4 2. 4. 3 凹模固定板及凸模固定板尺寸计算····························4 2. 4. 4 凸模整体尺寸计算··········································5 2. 5 冲裁力计算及冲裁压力中心的确定····························6 2. 5. 1 冲裁力计算················································6 2. 5. 2 冲裁压力中心确定··········································8 2. 6 其他标准件选用············································8 2. 6. 1 模架选用··················································8 2. 6. 2 导柱导套选用··············································9 2. 6. 3 螺钉、销的选用············································9 2. 6. 4 模柄选用·················································10 2. 7 模具闭合高度计算及冲压压力机的选用·······················11 2. 7. 1 摸具闭合高度·············································11 2. 7. 2 压力机选用···············································11 2. 8 绘制模具装配图及主要零部件零件图·························11 致谢 ·····