January 2012 7.10 Touch Probe 1385
Measurement with
a touch probe
If you want to use a touch probe for tool measurement, set
MP_measuringType to Probe.
To measure a tool, position the tool in front of the touch probe and press the
NC start key. The control then moves the tool automatically towards the
touch probe and returns it to its initial position after measurement. A separate
measurement is required for every axis direction. For more detailed
information about tool measurement, please refer to the User's Manual of the
control.
The expert program _Measure.ncs, which was tested in conjunction with a
TT 140 tool touch probe from HEIDENHAIN, is available as a probing cycle.
If touch probes other than the TT 140 are used, the expert program
_Measure.ncs might need to be adapted by the OEM.
You configure the values for the measuring feed rate, the measuring range
and the position of the touch probe as follows:
In MP_feed, enter the value for the feed rate at which the tool is to approach
the touch probe.
In MP_distance, enter a value for the measuring range. The tool stops when
it has traversed the measuring range without reaching the touch probe.
Enter the position of the touch probe in CfgProbePosition for each
individual axis. In MP_positionProbePos, define the position of the touch
probe in the positive axis direction with respect to the machine datum, and
in MP_positionProbeNeg in the negative axis direction.
In addition, you can enter in MP_maxMeasuringFeed an axis-specific
maximum feed rate for approaching the touch probe.
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