课程设计课程名称冲压工艺及冲模设计题目名称弯垫板弯曲模具设计专业班级材控学号学生姓名指导教师2013年11月6号一、零件分析...................................................................................................................................11.1零件工艺性分析.................................................................................................................11.2弯曲成形分析.....................................................................................................................1二、回弹...........................................................................................................................................22.1回弹的原因及表现形式.....................................................................................................22.2回弹的影响因素.................................................................................................................22.3回弹值的确定.....................................................................................................................32.4提高精度的措施（减小回弹）.........................................................................................32.4.1改进弯曲件的设计..................................................................................................32.4.2采取适当的弯曲工艺..............................................................................................32.4.3正确设计弯曲模......................................................................................................4三、毛坯尺寸计算...........................................................................................................................6四、弯曲力及设备选择...................................................................................................................64.1弯曲力计算.........................................................................................................................64.2压力机选用.........................................................................................................................6五、弯曲模具设计...........................................................................................................................75.1成形零件设计.....................................................................................................................75.1.1结构设计..................................................................................................................75.1.2尺寸计算..................................................................................................................85.1.3结构形式及固定形式..............................................................................................95.2定位零件.............................................................................................................................95.3卸料、顶件、推件零件...................................................................................................105.4模架及零件.......................................................................................................................115.4.1模架........................................................................................................................115.4.2导向装置........................................................................
