9 3D Touch Probes
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9.6 Measuring Tools with the lT 120 Touch Probe
Input data
l
MEASURE TOOL=0 / CHECK TOOL=1
Select whether a tool is to be measured for the first time or whether a
tool that has already been measured is to be inspected. If the tool is
being measured for the first time, the tool length L in the central tool
file TO0L.T is overwritten by the delta value DL = 0. If you wish to
inspect a tool, the TNC compares the measured length with the tool
length L that is stored in TO0L.T. It then calculates the positive or
negative deviation from the stored value and enters it into TO0L.T as
the delta value DL. The deviation can also be used for Q parameter
Q115 (see page 12-13). If the delta value is greater than the permissi-
ble tolerance for wear or breakage in the tool length, the TNC will lock
the tool (status L in TO0L.T).
l
CLEARANCE HEIGHT
Position in the tool axis in which there is no danger of collision with the
workpiece or fixtures.
l
CUTTER MEASUREMENT O=NO / l=YES
Here you can choose measurement of single cutting edges.
NC program blocks for measuring a rotating tool for the first time:
TOOL CALL 12 Z
TCH PROBE 31.0 TOOL LENGTH
TCH PROBE 31.1 CHECK: 0
TCH PROBE 31.2 HEIGHT: +I20
TCH PROBE 31.3
CUTTER MEASUREMENT: 0
NC program blocks for inspecting single cutting edges:
TOOL CALL 12 Z
TCH PROBE 31.0 TOOL LENGTH
TCH PROBE 31. I CHECK: 1
TCH PROBE 31.2 HEIGHT: +I20
TCH PROBE 31.3
CUTTER MEASUREMENT: 1
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TNC 370 9-35
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