数控铣床加工零件的内轮廓和外轮廓,刀具补偿的应用
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: center” align=center>数控铣床加工零件的内轮廓和外轮廓,刀具补偿的应用
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normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>加工图3-41所示内外轮廓,用刀具半径补偿指令编程,刀具直径Φ8mm。
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>外轮廓加工采用刀具半径左补偿,沿圆弧切线方向切入Pl—P2,切出时也沿切线方向P2——P3。内轮廓加工采用刀具半径右补偿,P4一P5为切入段,P6-P4为切出段.外轮廓加工完毕取消具半径左补偿,刀具至P4点,再建立刀具半径右补偿。数控程序如下:
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normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”> 图3-41 刀具半径补偿加工内外轮廓
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0010 G54S1500M03
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0005 G90Z50 /抬刀至安全高度
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0020 G0020.Y44.Z2. /刀具快进至P1点上方
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0030 G01 Z4.F100. /刀具以切削进给到深度4mm处
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0040 G4l X0Y-40. /建立刀具半径左补偿P1-P2
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0050 G02X0Y-40.I0J40.. /铣外轮廓顺圆至P2
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0060 G00G40X-20.Y-44. /取消刀具半径左补偿P2一P3
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0065 Z50. /抬刀至安全高度
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0070 G000Y15. /刀具快进至P4点
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0075 Z2.0 /快速下刀
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0080 G01Z-4. /刀具以切削进给到深度4mm
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0090 G42X0Y0 /建立刀具半径右补偿P4一P5
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0100 G02X-30.YOI-15.JO /铣内轮廓顺圆A—B
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0110 G02X30.YOI30.J0 /铣内轮廓顺圆B—C
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0120 G02XOY0[-15.JO /铣内轮廓顺圆C—A
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0130 G00G400Y15. /取消刀具半径右补偿P6——P4
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0140 G00Z100. /刀具沿Z轴快速退出
normal style=”TEXT-INDENT: 24pt; LINE-HEIGHT: 18pt”>N0150 M02 /程序结束
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