目 录摘要 ··············································1引言 ···············································１一、托架零件得分析 ··········································21、零件得作用 ··············································２２、零件得结构 ··············································23、设计基准及技术关键 ······································３4、主要加工表面 ············································45、 零件得工艺分析 ·········································5二、托架工艺规程得设计 ···········································6 １、确定毛坯得制造形式 ······································72、 基准得选择 ·············································9３、 制定工艺路线 ···········································11 ４ 、 机 械 加 工 余 量 、 工 序 尺 寸 及 毛 坯 尺 寸 得 确定··················1 ３5、 切削用量及机床得确定 ···································１ 5三、 零件专用夹具得设计 ······································171、 设计方案得确定 ·········································１ 9２、 夹紧力得分析 ·············································213、 导向设计 ············································234、 精度得分析 ···························...
