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左旋梯形螺纹的编程
2022-06-30 14:45:00 【lrglu】
加工左旋螺纹,若主轴正转,当车床刀架前置,刀具应X正向进给(从主轴向刀架方向);当车床刀架后置,刀具应X负向进给(从刀架向主轴方向)。用G32编程如下,(先用切槽刀加工矩形螺纹,再加工梯形的两个腰。根据槽底宽(3-1×tan15°×2=2.464)选取2mm切槽刀,因为2.464-2=0.464,所以#3=#3+0.464.切削用量选取值仅供参考。)
程序参考:
M03S400
G00X85Z12
#1=0
#2=1.75
N200#3=0
N100G00X[#1+80]
G32Z-45F6
G00X85
Z[#3+12]
#1=#1-0.1
IF[#1GE-3.5]GOTO200
#3=#3+0.464
IF[#3LE0.464]GOTO100
N300G00Z[12+#3+#2TAN[15]]
X[76.5+2*#2]
G32Z-45F6
G00X85
#2=#2-0.05
IF[#2GE0]GOTO400
N400G00Z[12-#2*TAN[15]
X[76.5+2*#2]
G32Z-45F6
G00 X85
#2=#2-0.05
IF[#2GE0]GOTO300
G00Z300
M30
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