
14. MEASUREMENT
B--63003EN--1/02
1188
(Tool offset value to be set)
=
(Mechanical coordinate value when tool compensation value write
signal has become “1”) -- (Reference value (parameter value)
corresponding to the tool compensation value write signal)
The tool offset value to be set differs according to the method of
determining the measuring reference position.
The difference between the reference tool nose tip position and the
measuring tool nose tip position is settable as the tool offset value. Define
the reference tool nose tip position at the mechanical reference position
(machine zero position) as the measuring reference position, then set the
distances Xp, Zp, Xm, Zm, from the measuring reference position to the
contact faces of the sensor as parameters.
+X
+Z
(0,0)
(0,0)
Zm
Zp
Zt
OFS
X
OFS
Z
Xm
Xp
Xt
XP : Distance from the measuring reference position to X-axis (+) contact face (parameter
no. 5015)
Xm : Distance from the measuring reference position to X-axis (--) contact face (parameter
no. 5016)
Zp : Distance from the measuring reference position to Z-axis (+) contact face (parameter
no. 5017)
Zm : Distance from the measuring reference position to Z-axis (--) contact face (parameter
no. 5018)
Xt : X-axis direction moving distance of the measuring tool up to the contact face of sensor
(X-axis machine coordinate value)
Zt : Z-axis direction moving distance of the measuring tool up to the contact face of sensor
(Z-axis machine coordinate value)
(when Xt and Zt touch the X-axis (--) contact face and Z-axis (--) contact face in the
above figure)
OFSx : Tool offset value to be set (X-axis): OFSx = Xt - Xm
OFSz : Tool offset value to be set (Z-axis): OFSz = Zt - Zm
Zaxis(-- ) contact face
Xaxis(-- ) contact face
Measuring reference
position (reference tool
nose position at the me-
chanical reference posi-
tion)
Measuring tool nose
position at the me-
chanical reference
position
When the reference tool nose tip position is set as the measuring reference position
Examp le 1