UG 发那科三菱 3+2 BC坐标转换 后处理

UG 发那科/三菱五轴后处理程序解析

本文展示了一套适用于 UG 软件生成的发那科（Fanuc）及三菱系统五轴联动加工程序。该后处理方案支持 3+2 坐标转换，具备任意角度自动计算功能，专为定轴加工设计且未加密。

程序核心特性包括：程序头自动附带刀具列表；换刀指令中显示刀具侧壁及底面余量；同把刀具在不同角度转换时自动输出 G43 长度补偿；刚性攻丝循环自动调用 M29 指令。以下为优化后的标准程序格式示例。

程序头部信息与刀具列表

程序起始部分包含程序号、切削时间统计、后处理生成时间以及详细的刀具参数列表。每把刀具均标注了编号、名称、直径、圆角半径、刃长及最低 Z 值坐标，便于操作员核对。

( Program NO.=  程序 )
( Cutting Time=15.0 Min )
( Post Date = 2026-09-15 09:23:45 )

( Total_toolnumbers = 3 )
( {T1 D10-OLD D10.00  r0.00 FL30  H1 D1 } ZMIN=42.926 )
( {T1 D10-OLD D10.00  r0.00 FL30  H1 D1 } ZMIN=-19.807 )
( {T3 D8-NEW D8.00  r0.00 FL24  H3 D3 } ZMIN=-12.407 )

安全启动与初始化设置

程序初始化阶段执行平面选择、绝对编程、取消补偿及安全复位操作。随后通过 G28 指令将机床返回参考点，确保加工安全。

G17 G90 G40 G49 G69 G80
G90 G10 L2 P0 X0.0 Y0.0 Z0.0
G91 G28 Z0.0
G91 G28 Y0.0

多工序加工代码详解

以下代码展示了多刀具、多角度（B/C 轴）的完整加工流程。包含换刀逻辑、宏程序调用（G65 P9012）进行坐标变换、主轴启停、冷却液控制及具体的插补运动轨迹。

N1 M1
T1 M6
T3
   (D10-OLD)
   (D=10.R=0.)
   (Ce:0.200MM)
   (Di:0.100MM)
M11
M17
G65 P9012 B90. C180.
G0 G90 G54 X27.686 Y1. B90. C180. S10000 M3
M10
M12
G43 H1 Z186.466 M8
Z43.926
G1 Z42.926 F2000.
G3 X26.686 Y0.0 I0.0 J-1.
G1 Y-15.264
G3 X26.986 Y-15.564 I.3 J0.0
G1 X36.75
G3 X37.05 Y-15.264 I0.0 J.3
G1 Y15.264
G3 X36.75 Y15.564 I-.3 J0.0
G1 X26.986
G3 X26.686 Y15.264 I0.0 J-.3
G1 Y0.0
Y-1.
G3 X27.686 Y-2. I1. J0.0
G1 Z43.926
G0 Z186.458
G91 G28 Z0.0
M17
G65 P9012 B90. C90.
G0 G90 G54 X36.05 Y-1. B90. C90. S10000 M3
M12
G43 H1 Z189.498
Z43.926
G1 Z42.926 F2000.
G3 X37.05 Y0.0 I0.0 J1.
G1 Y15.264
G3 X36.75 Y15.564 I-.3 J0.0
G1 X26.986
G3 X26.686 Y15.264 I0.0 J-.3
G1 Y-15.264
G3 X26.986 Y-15.564 I.3 J0.0
G1 X36.75
G3 X37.05 Y-15.264 I0.0 J.3
G1 Y0.0
Y1.
G3 X36.05 Y2. I-1. J0.0
G1 Z43.926
G0 Z189.49
M9
M5
G91 G28 Z0.0
G91 G28 Y0.0
N2 M1
T3 M6
T4
   (D8-NEW)
   (D=8.R=0.)
   (Ce:0.250MM)
   (Di:0.000MM)
M11
M17
G65 P9012 B45. C0.0
G0 G90 G54 X36.134 Y-32.946 B45. C0.0 S8000 M3
M10
M12
G43 H3 Z123.503 M8
Z22.013
G1 Z21.513 F1200.
Y-31.346
Y31.346
X40.887
Y-31.346
X45.64
Y31.346
Y32.946
Z22.013
G0 Z124.958
G91 G28 Z0.0
M11
M17
G65 P9012 B90. C270.
G0 G90 G54 X38. Y3.816 B90. C270. S8000 M3
M10
M12
G43 H3 Z190.109
Z43.026
G1 Y0.0 Z42.826 F1200.
Y-15.264
G2 X36.75 Y-16.514 I-1.25 J0.0
G1 X26.986
G2 X25.736 Y-15.264 I0.0 J1.25
G1 Y15.264
G2 X26.986 Y16.514 I1.25 J0.0
G1 X36.75
G2 X38. Y15.264 I0.0 J-1.25
G1 Y0.0
X32.
Y-10.514
X31.736
Y10.514
X32.
Y0.0
X33.6
Z43.326
G0 Z188.656
G91 G28 Z0.0
M11
G65 P9012 B0.0 C270.
G0 G90 G54 X.824 Y10.771 B0.0 C270. S8000 M3
G91 G28 Z0.0
G0 G90 G54 X.824 Y10.771
G43 H3 Z99.708
M10
Z-19.807
G1 X1.637 Y11.156 F200.
... (中间坐标点省略) ...
X33.386 Y-1.14
X33.325 Y-1.075
X33.261 Y-1.013
X33.195 Y-.954
X33.126 Y-.898
X33.055 Y-.844
X31.868 Y0.0
G0 Z188.037
G91 G28 Z0.0
M17
G65 P9012 B90. C270.
G0 G90 G54 X31.868 Y0.0 C270.
M12
G43 H3 Z27.333
G1 X33.055 Y.844
... (中间坐标点省略) ...
X30.351 Y1.14
X30.412 Y1.075
X30.476 Y1.013
X30.542 Y.954
X30.611 Y.898
X30.682 Y.844
X31.868 Y0.0
G0 Z188.037
M9
M5
G91 G28 Z0.0
G91 G28 Y0.0
N3 M1
T4 M6
T1
   (DJ-D6)
   (D=6.D_a=45)
M11
G65 P9012 B0.0 C0.0
G0 G90 G54 X17.722 Y18.475 B0.0 C0.0 S5000 M3
M10
G43 H4 Z98.355 M8
G98 G81 X17.722 Y18.475 Z-12.407 R-8.807 F500.
G80
G98 G81 X-7.261 Y-28.347 Z-12.407 R-8.807
G80
G0 G91 G28 Z0
M11
G65 P9012 B45. C0.0
G0 G90 G54 X40.887 Y0.0 B45.
G43 H4 Z127.053
M10
G98 G81 Z18.913 R22.513
G80
G0 G91 G28 Z0
M17
G65 P9012 B45. C90.
G0 G90 G54 X40.887 Y0.0 C90.
G43 H4 Z127.053
M12
G98 G81 Z18.913 R22.513
G80
G0 G91 G28 Z0
M17
G65 P9012 B45. C180.
G0 G90 G54 X40.887 Y0.0 C180.
G43 H4 Z127.053
M12
G98 G81 Z18.913 R22.513
G80
G0 G91 G28 Z0
M17
G65 P9012 B45. C270.
G0 G90 G54 X40.887 Y0.0 C270.
G43 H4 Z127.053
M12
G98 G81 Z18.913 R22.513
G80
M9
M5
G91 G28 Z0.0
G91 G28 Y0.0
M11
M17
G0 G90 B0.0 C0.0
M10
M12
M30
%

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