弯曲模课程设计

洛阳理工学院课程设计 1 弯 曲 模 课 程 设 计 课 题： U 形弯曲件课程设计 设计时间： 2012.11.25～12.2 班 级： 学 号： 姓 名： 指导教师： 2012 年 12 月 2 日 洛阳理工学院课程设计 2 目录 1、设计任务········································3 2、弯曲工艺分析····································3 2.1材料分析··········································3 2.2结构分析···········································3 3、工艺方案确定···································3 4、弯曲工艺计算·····························4 4.1毛坯尺寸计算·······································4 4.2弯曲力计算·······································5 4.3弯曲模主要零部件计算······························6 5、冲压设备的选择·································9 6、弯曲模模架结构设计···························9 7、模具装配图·····························11 8、参考文献···································13 洛阳理工学院课程设计 3 1. 设计任务 U型件弯曲模具设计，零件如图1.1，参数如图所示，大批量生产。 图 1.1 2. 弯曲工艺分析 具有良好工艺性的弯曲件，能简化弯曲工艺过程和提高弯曲精度，并有利于模具的设计和制造。弯曲件的工艺设计材料、结构工艺和弯曲件的精度内容。 2 .1 材料分析 该工件所用材料10钢是常用的冲压材料，塑性较好，适合冲压加工，大批量生产。 2 .2 结构分析 零件结构简单，形状对称，对弯曲成型较为有利。查表 1（垂直于纤维）材料允许最小弯曲半径 rmin=0.1t=0.2mm<3mm，不会弯裂。洛阳理工学院课程设计 4 计算零件相对弯曲半径r/t=1.5<3,卸载后弯曲圆角半径变化不予考虑，工件的弯曲直边高度为34.77mm，远大于2t，因此可以弯曲成功。该工件...