N0100 G90 G00 X30
N0110 Z2
N0120 X24 ;粗车二刀外圆得 φ48㎜
N0130 G01 Z-10 F100
N0140 G91 G02 X3 Z-3 I3 K0 ;粗车二刀圆弧得 R3㎜
N0150 G90 G00 X30
N0160 Z2
N0170 X22.5 ;粗车三刀外圆得 φ45㎜
N0180 G01 Z-10 F100
N0190 G91 G02 X4.5 Z-4.5 I4.5 K0 ;粗车三刀圆弧得 R4.5㎜
N0200 G90 G00 X30
N0210 Z2
N0220 X21 ;粗车四刀外圆得 φ42㎜
N0230 G01 Z-4 F100
N0240 G91 X1.5 Z-1.5 ;粗车圆锥一刀
N0250 G90 G00 X25
N0260 Z2
N0270 X19.5 ;粗车五刀外圆得 φ39㎜
N0280 G01 Z-4 F100
N0290 G91 X3 Z-3 ;粗车圆锥二刀
N0300 G90 G00 X25
N0310 Z2
N0320 X18 ;精车外轮廓
N0330 G01 Z0 F150 S800
N0340 G91 X1 Z-1
N0350 Z-3
N0360 X3 Z-3
N0370 Z-3
N0380 G02 X5 Z-5 I5 K0
N0390 G01 Z-2
N0400 X-1 Z-1
N0410 G90 G00 X30
N0420 Z150
N0430 M02
编程之二
采用精加工轮廓循环编程法,程序较短,编程也较容易,关键是准确确定循环体中
的进刀、退刀量及循环次数,但刀具空行程较多,加工效率低,较适合外形轮廓复杂的工
件。
上一零件还可采用精加工轮廓循环加工编程,如图 2-21 所示,每次循环刀具运动路
线为 A→B→C→D→E→F→G→H→I→J,走完一次循环后判别循环次数,若次数不够,
则继续执行,直至循环结束。