目

   录

    

摘

要

..................................................................................................................................................... 1

   

目 录

...................................................................................................................................................... 2

1 机床的选用及简介................................................................................................................................ 1

1.1 机床的选择.........................................................................................................................................1
1.2 

 

机床的组成

........................................................................................................................................2

1.2.1 数控机床的组成..........................................................................................................................2
1.2.2 数控系统与数控机床的组成......................................................................................................2

1.3 机床的工作原理.................................................................................................................................3

1.3.1 数控机床的工作原理与工作方式..............................................................................................3

1.4 机床的工作特点.................................................................................................................................3

2 零件的工艺分析................................................................................................................................... 4

2.1 零件工艺分析......................................................................................................................................4

2.1.1 零件图的分析..............................................................................................................................5

2.2 确定加工方案......................................................................................................................................5
2.3 加工路线和加工顺序的确定.............................................................................................................5

2.3.1 加工工艺路线..............................................................................................................................6

2.4 切削用量的选择.................................................................................................................................6
2.5 刀具的选择.........................................................................................................................................8

3 加工工序的编排.................................................................................................................................. 10

3.1 工序与工步的划分...........................................................................................................................10
3.2 加工工序的编排...............................................................................................................................10
3.3 

 

加工工序卡片

..................................................................................................................................12

3.4 加工程序...........................................................................................................................................12
3.5 零件加工中的难点与解决方案.......................................................................................................15

4 数控车床操作注意事项...................................................................................................................... 16

5 结论..................................................................................................................................................... 17

6 

  

致 谢

.................................................................................................................................................. 18

7 参考文献............................................................................................................................................. 19

 

 

附录一 常用公制螺纹切削的进给次数与背吃刀量（双边）

MM......................................................21

 

附录二 数控机床设备安全操作规程

....................................................................................................22

 

附录三 指令字符

................................................................................................................................... 23