外圆粗车循环和精车循环加工——数控车床编程实例

 图是一个使用外圆粗车循环和精车循环加工举例。

normal style="TEXT-INDENT: 21pt">毛坯的直径为Φ95mm，要求粗加工循环为精车循环留出加工余量：直径方向0.4mm，轴向0.2mm。工件坐标系如图中所示。

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normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt">G92 X100 Z40

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N100 G00 X96.Z20.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt">N110 G95 F0.3

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N120 G71 U3. R1.P130 Q220 X0.4 Z0.2 F0.3

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">nnecttype="rect" gradientshapeok="t" o:extrusionok="f">    N130 G00 X42.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N140 G01 Z0

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N150 G03 X52. Z-5. R5.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N160 G01 Z-30.1

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N170 X65.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N180 X68. Z-31.5

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N190 Z-63.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">  N200 X73.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N210 X95. Z-70.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px">    N220 Z-85.

normal style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; TEXT-INDENT: 21pt">N230 M30