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MITSUBISHI CNC
III Functional Specifications
(2) Hole center workpiece offset measurement
The measurement position coordinates of two axes (X, Y) are measured at three points, and the
hole center is calculated. The calculated result is set in the specified workpiece coordinate offset.
The workpiece position measurement coordinates are calculated from the skip machine position of
the X and Y axes.
Measurement position coordinate X = X axis' skip machine position + center compensation amount
(horizontal) ± skip flow amount (horizontal
Measurement position coordinate Y = Y axis' skip machine position + center compensation amount
(vertical) ± skip flow amount (vertical)
The +/- of the skip flow amount changes according to the tool movement amount during
measurement.
X
(a)
(a) Workpiece coordinate zero point
(b) Measurement A point
(c) Measurement B point
(d) Measurement C point
III - 320
(d)
To set the workpiece coordinate offset, the
position X and Y of the measurement A point are
measured, and the measured values are set in
(b)
the measurement A point. In the same manner as
the measurement A point, the measurement B
point and then C point are measured and set.
The hole center coordinate is calculated by
setting the workpiece coordinate system after
setting three points, and the calculated result is
(c)
set in the workpiece coordinate offset.
Y
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