毕业设计型腔零件的数控编程与仿真样本.doc

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As we all know ， nc machining is now a new major ， popular major ， is developing rapidly ， CNC

programming is a multi-channel complicated procedure of composition ， this is for us to learn to bring

inconvenience，in order to make learning more convenient，use more structured，I wrote this typical parts

of CNC milling machine，milling operation and programming design for everyone's hope job，study，bring

convenience.

My this graduation design including the design plan descriptions，abstract，preface，the design specification

and so on many parts. Design of the main content is to our machinery processing daily processing of

common workpiece take one of the typical parts of program and operating system design ， from the nc

machining should be obtained before the start of nc machining process analysis，to the nc tool and selection，

1 绪论------------------------------------------------------------------------------------------------------------1

1.1 数控机床产生与发展---------------------------------------------------------------------------------- 1

1.2 数控机床加工特点--------------------------------------------------------------------------------------2

1.3 数控机床发展趋势--------------------------------------------------------------------------------------4

2 数控铣削加工工艺------------------------------------------------------------------------------------------6

2.1 零件工艺分析--------------------------------------------------------------------------------------------6

2.2 装夹方案拟定--------------------------------------------------------------------------------------------6

2.3 数控加工刀具-----------------------------------------------------------------------------------------------7

2.4 切削用量拟定--------------------------------------------------------------------------------------------8

2.8.1 工序划分原则-----------------------------------------------------------------------------------------13

2.8.2 工序划分办法---------------------------------------------------------------------------------------13

2.9 工艺文献制定---------------------------------------------------------------------------------------------13

3 零件铣削加工工艺分析-------------------------------------------------------------------------------------13

3.1 分析零件图，拟定安装基准------------------------------------------------------------------------------13

3.2 拟定加工办法和加工路线---------------------------------------------------------------------------------14

3.2.1 选取加工办法-------------------------------------------------------------------------------------------14

3.2.2 选取加工路线-------------------------------------------------------------------------------------------15

3.3 选取切削用量-------------------------------------------------------------------------------------------------15

3.4 选取刀具-------------------------------------------------------------------------------------------------------15

4.2.1 手工编程程序------------------------------------------------------------------------------------------23

4.2.2CAXA 工程师自动编程--------------------------------------------------------------------------28

4.2.3 零件仿真加工图------------------------------------------------------------------------------------------72

5 总结----------------------------------------------------------------------------------------------------------------77