HEIDENHAIN iTNC 530 (340 49x-05) Cycle programming - Manual (Page 441)

HEIDENHAIN iTNC 530 441
1
7.6 MEA
S
URE AXIS SHIFT (t
ouc
h
p
robe cy
cle
440, DIN/ISO: G440)
17.6 MEASURE AXIS SHIFT
(touch probe cycle 440,
DIN/ISO: G440)
Cycle run
Touch probe cycle 440 measures the axis shifts of the machine. Make
sure that the cylindrical calibrating tool used in connection with the
TT 130 has the correct dimensions.
1 The TNC positions the calibrating tool at rapid traverse (value from
MP6150 or MP6361) and following the positioning logic (refer to
chapter 1.2) in the vicinity of the TT.
2 At first the TNC makes a measurement in the touch probe axis.
The calibrating tool is offset by the value you have defined in the
tool table TOOL.T under TT: R-OFFS (standard = tool radius). The
TNC always performs the measurement in the touch probe axis.
3 Then the TNC makes the measurement in the working plane. You
define via parameter Q364 in which axis and in which direction of
the working plane the measurement is to be made.
4 If you make a calibration, the TNC saves the calibration data.
Whenever you make a measurement, the TNC compares the
measured values to the calibration data and writes the deviations
to the following Q parameters:
You can use this value for compensating the deviation through an
incremental datum shift (Cycle 7).
5 Finally, the calibrating tool returns to the clearance height.
Parameter number Meaning
Q185 Deviation from calibration value in X
Q186 Deviation from calibration value in Y
Q187 Deviation from calibration value in Z