犁刀变速齿轮箱体零件的机械加工工艺规程.pdf

目 录 摘要.........................................................1 1 犁刀变速箱工艺设计...................................................1

1.1分析零件图 ...............................................1

1.2确定生产类型.......................................................1

1.3 确定毛坯 ........................................................1

2 机械加工工艺过程设计................................................3

2.1机械加工工艺过程设计.............................................3

2.2选择加工设备与工艺装备 ..........................................5

2.3选择加工设备与工备................................... ...........6

2.4确定切时间定额 .................................... .............8

2.5 填写工艺规程卡.................................................12

3 机床总体设计....................................................12

3.1机床总体设计........................................ ........12

3.2组合机床工艺分析................................................13

3.3主轴的设计与计算..............................................18

4夹具设计...........................................................22

4.1机床夹具概述.................................................22

4.2定位支撑系统.................................................22

4.3夹紧机构...................................................23

结论................................ .......................26

致谢..................................................................27

参考文献......................... ..........................28