推动架”零件的机械加工工艺规程

课程设计-推动架目 录
序 言·······························································4
1 零件的分析····························································4
1.1零件的作用及结构分析···········································5
1.2零件的工艺分析···················································5
1.3毛坯制造·····················································5
2 拟定推动架的机械加工工艺路线·········································7
2.1推动架机械加工工艺方案···········································7
2.2选择定位基准·····················································7
2.2.1精基准的选择········································7
2.2.2粗基准的选择·································7
2.3加工路线的拟定·············································8
3 毛坯尺寸，工序尺寸及机械加工余量的确定
3.1毛坯的外部轮廓尺寸············································9
3.2主要平面加工的工序尺寸及加工余量·······························9
3.3加工的工序尺寸及加工余量·································10
3.4确定切削用量的基本工时······························ 12
3.5推动架的机械加工工艺过程卡片······························ 15
3.6推动架机械加工工序卡片······························ 15
4 总结································································· 15
5 参考文献···························································· 16
附录：零件图一张
毛坯图一张