User`s manual for cycle programming

Touch Probe Cycles: Automatic Workpiece Inspection
16.1 Fundamentals
16
538
HEIDENHAIN | TNC 640 | User’s manual for cycle programming | 9/2015
Tool monitoring
For some cycles for workpiece inspection you can have the TNC
perform tool monitoring. The TNC then monitors whether
The tool radius should be compensated because of the
deviations from the nominal value (values in Q16x).
The deviations from the nominal value (values in Q16x) are
greater than the tool breakage tolerance.
Tool compensation
This function works only:
If the tool table is active.
If tool monitoring is switched on in the cycle
(enter a tool name or Q330 unequal to 0). Select
the tool name input by soft key. The TNC no
longer displays the right single quotation mark.
If you perform several compensation measurements,
the TNC adds the respective measured deviation to
the value stored in the tool table.
Milling tool: If you reference parameter Q330 to a milling tool,
the appropriate values are compensated in the following way: the
TNC basically always compensates the tool radius in column DR of
the tool table, even if the measured deviation is within the stated
tolerance. You can inquire whether re-working is necessary via
parameter Q181 in the NC program (Q181=1: must be reworked).
Turning tool: (applies to cycles 421, 422, 427 only) If you reference
parameter Q330 to a turning tool, the appropriate values in row
DZL and DXL, respectively, are compensated. The TNC monitors
the breakage tolerance which is defined in column LBREAK. You
can inquire whether re-working is necessary via parameter Q181 in
the NC program (Q181=1: must be reworked).