Coordinate System Selection - Feature Coordinate System Example - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.27 3-Dimensional Manual Feed

14.27.4.3 Coordinate System Selection - Feature Coordinate System Example

Axis travel is performed in each of the X, Y and Z directions of the feature coordinate system that has been defined for
Workpiece installation error compensation or Inclined surface machining function.
The below example is the operation with the 1st handle when a feature coordinate system is defined using the G code.
[Operation procedure]
(1) Define a feature coordinate system in the MDI mode.
G68.2 X-30. Y-40. Z-20 I45. J30.K0
(2) Select the handle mode.
(3) Travel in the X direction by -30., in the Y direction by -40. and in the Z direction by -20.
(4) Select the feature coordinate system (YD1B/0, YD1C/0, YD1D/1) as a hypothetical coordinate system.
(5) Travel in the FX, FY and FZ directions of the inclined surface.
WX(-)
FY(+)
-20.
Workpiece
WY(-)
Rotate around
Z axis by 45°
Movement by "X1."
Workpiece co- Inclined sur-
ordinate face coordi-
nate
X -29.293 1.000
Y -39.293 0.000
Z -20.000 0.000
A 0.000 0.000
C 0.000 0.000
(Motion vector on workpiece coordi-
nate)
X: 1/ √ 2
Y: 1/ √ 2
Z: -
-30.
FZ(+)
-40.
FX(+)
WZ(-)
Movement by "Y1."
Workpiece co- Inclined sur-
ordinate face coordi-
nate
X -30.612 0.000
Y -39.388 1.000
Z -19.500 0.000
A 0.000 0.000
C 0.000 0.000
(Motion vector on workpiece coordi-
nate)
= +0.707 X: √ 3/2*1/(- √ 2)
= +0.707 Y: √ 3/2*1/ √ 2
Z: 1/2
Feature coordinate system: FX, FY, FZ
Rotate around
X axis by 30°
30°
45°
Movement by "Z1."
Workpiece co-
ordinate
X -29.647
Y -40.353
Z -19.134
A 0.000
C 0.000
(Motion vector on workpiece coordi-
nate)
= -0.612 X: 1/2*1/ √ 2
= +0.612 Y: 1/2*1/(- √ 2)
= +0.5 Z: √ 3/2
741
Inclined sur-
face coordi-
nate
0.000
0.000
1.000
0.000
0.000
= +0.353
= -0.353
= +0.866
IB-1501668-B