一、 实验目的
通过图形自动编程系统使同学们了解其Pro/E系统的组成及数控铣床自动编程的全过程，为数控铣床的零件加工打基础。 二、 实验原理
图形交互式自动编程是数控自动编程系统的发展趋势。Pro/E系统是集图形设计、刀位数据生成和后处理于一体的图形编程软件。图形自动编程是以图形要素为输入参数，从三维零件造型图形，加工参数的输入，生成走刀轨迹，直到生成数控加工指令的全过程，都通过屏幕菜单驱动，图形交互式得到的。将过去枯燥烦琐的编程过程变得形象、直观、高效、又令人兴趣盎然。
本实验以体积块铣削自动编程为例，通过实际编程操作、了解图形自动编程的全过程及图形自动编程系统的组成，为从事数控加工打下基础。 三、实验仪器 微机每人一台
软件配置：Pro/E5.0 四、实验内容及步骤 （一）、实验内容：
零件三维造型给出，按实验步骤得到数控加工程序
（二）、步骤
1. 建立数控加工文件 2. 建立制造模型 3. 建立毛坯模型 4. 设置机床 5. 设置加工零点 6. 设置退刀平面 7. 创建NC序列 8. 刀具路径模拟 9. 后置处理
五、写出实验步骤中各步中自己所选的参数及最后自动生成的程序（程序可打印附上）。
实验所选参数
退刀公差 1
刀具
类型 外圆角铣削 钻头长 60 直径 10 圆角 R2
铣削参数
进给速度 500 步长深度 3 公差 0.05 跨度 4
允许轮廓坯件 0.5 允许粗加工坯件 0.5 允许的底部线框 0.5 切割角 0
扫描类型 TYPE-SPIRAL 切割类型 向上切割 粗加工选项 粗加工轮廓 安全距离 4 主轴速度 1800 冷却液 开 % G71 O0001
(C:\\Documents and Settings\\dell\\桌面\\001\\seq0001.ncl.2) (03/25/16-09:36:18) N0010T1M06 S1800M03
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