设计简介
题目所给的零件为倒挡拨叉，是与操纵机构零件结合用与拨动滑动齿轮实现输出轴的倒转。故对配合面
、14H13槽以及下拨叉有精度要求。
目 录
一、序言············································2
二、零件的工艺分析及生产类型的确定··················2
三、毛坯的选择与设计································4
四、加工方法和工艺路线的设计························6
五、工序设计········································9
六、确定切削用量及基本时间··························12
七、夹具设计········································16
八、设计小节········································17
九、参考文献········································17
、14H13槽以及下拨叉有精度要求。目 录
一、序言············································2
二、零件的工艺分析及生产类型的确定··················2
三、毛坯的选择与设计································4
四、加工方法和工艺路线的设计························6
五、工序设计········································9
六、确定切削用量及基本时间··························12
七、夹具设计········································16
八、设计小节········································17
九、参考文献········································17
