Measure Axis Shift - HEIDENHAIN ITNC 530 - CYCLE PROGRAMMING User Manual

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
MP6550) 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:
Parameter number Meaning
Q185 Deviation from calibration value in X
Q186 Deviation from calibration value in Y
Q187 Deviation from calibration value in Z
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.
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