河北工业大学城市学院机械系专业实践课报告.doc

河北工业大学城市学院机械系
专业实践课报告






目录
一. 手工编程···································3
1. 数控车床·····································3
·····································8
二. 自动编程·····································12
1. 零件造型······································12
2. 加工仿真······································12
······································17
······································18
1. 数控车床······································18
·····································19
·········································25
附录一··········································26
附录二··········································27
附录三··········································28
一. 手工编程
1. 数控车床
设计零件图如下图所示
所编制的程序
G54
M03 S1000
G73 U3 R3 P10 Q50 F200
N10 G00 X100 Z100
G00 X0 Z5
G01 X20 Z-5
G01 X20 Z-25
G02 X20 Z-35 I0 K-5
G03 X20 Z-45 I0 K-5
G01 X15
G01 X15 Z-65
G01 X30 Z-65
G01 X30 Z-100
G01 X40 Z-100
N50 G00 X100 Z100
G00 M30
加工轨迹图
对刀
选用***
点击菜单“机床/选择***”在“选择车刀”对话框中根据加工方式选择所需的刀片(V型刀片)
z方向试切
通过试切在工件端面切出一个平面,记下此时的X的数值即为工件坐标系原点在机床坐标系中的X方向数值。
X方向试切
通过X方向的试切在工件表面车出一个圆面,记下此时的Z方向数值即为工件坐标系原点z方向在机床坐标系中的位置。通过上面两步试切即可得出工件坐标系在机床坐标系中的准确位置,把这个数值输入给机床即完成了对刀这一过程。
加工仿真结果图
选好机床放好毛坯完成对刀程序无误后即可得到加工仿真结果,如下图所示。
测量图
完成模拟仿真后,点击菜单栏中的测量按钮即可得出测量结果图。
2. 数控铣床

所编制的程序
O0001
M03 S1000.
G54
G00 X0. Y0. Z10.
G01 Z-1. F150.
G01 Y25.
G02 X0. Y25. I0. J-25.
G01 Z2.
G00 X0. Y0.
G01 Z-1.
G01 X22. Y-
G01 Z2.
G00 X0. Y0.
G01 Z-1.
G01 X-22. Y-
G01 Z2.
G00 Z10.
M05
M30
选择夹具
点击菜单栏中机床下的选择夹具选项选用平口钳。
对刀
X方向对刀
在工件的左侧放置一个一毫米厚的塞尺,将刀移动到塞尺左侧合适的位置,记下此时的X数值,通过这个数值加上1毫米再加上半个工件的长度即为工件坐标系X方向在机床坐标系中的位置。Y方向的对刀同理。