数控车G74的钻孔循环 编程个程序看看 谢谢（数控车床端面钻孔循环编程实例）

o1;

G28U0W0;

G97G99M3S1500;

G0X0;

Z2.0M8;

G74R1.0;

G74Z-20.Q2000F0.08;

G28U0W0;

M5;

M9;

M30;