毕业设计U形弯曲件.pdfVIP

毕 业 设 计 课 题： U形弯曲件 设计时间： ～ 2010.11.11 12.11 班 级： 学 号： 姓 名： 指导教师： 完成日期：2010 年 12 月 11 日 前言 一、弯曲的概念与应用 金属材料被弯成一定形状和角度的零件的成形方法称为弯 曲。弯曲是冲压生产中应用广泛的一种工艺，可用于制造大型结 构零件，，如飞机机翼、汽车大梁等，也可用于生产中小型机器 及电子仪器仪表零件，如铰链、点子元器件等。根据弯曲件的不 同要求和生产批量的大小，有各种不同的弯曲方法。最常用的是 以弯曲模具在通用压力机上进行压弯，此外也有在折弯机、滚弯 机、拉弯机上进行的折弯、滚弯、及拉弯。 目录 前言 ·····················································2 设计任务书 ···············································5 U形件弯曲模 第一章 工艺分析 ········································6 1.1材料分析 ··········································6 1.2结构分析 ··········································6 第二章 工艺方案拟定 ····································7 2.1毛坯展开 ··········································7 2.2方案确定 ··········································· 8 第三章 弯曲工艺计算 ····································8 3.1冲压力计算 ········································8 3.2模具工作部分尺寸计算 ······························9 第四章 模具总结构形式确定 ·····························12 第五章 冲压设备的选择 ·································12 第六章 弯曲模模架及零件设计 ···························13 6.1后侧导柱模架的选用 ································ 13 6.2其它零件结 ·····································13 第七章 模具制造工艺过程 ·······························16 7.1凹模制造工艺过程·································16 7.1凸模制造工艺过程·································16 第八章 模具各部分零件参数 ·····························16 第九章 橡胶垫的选用 ···································17 第十章 总工程图 ·······································18 总结 ·················································19 致谢信 ···············································20 参考文献 ·············································22