HEIDENHAIN TNC 620 (81760x-02) Cycle programming - Manual (Page 433)

CALIBRATE TS RADIUS OUTSIDE (Cycle 463, DIN/ISO: G463,
software option 17)
16.9
16
TNC 620 | User's Manual Cycle Programming | 2/2015
433
16.9 CALIBRATE TS RADIUS OUTSIDE
(Cycle 463, DIN/ISO: G463, software
option 17)
Cycle run
Before starting the calibration cycle, you need to preposition the
touch probe above the center of the calibration pin. Position the
touch probe in the touch probe axis by approximately the set-up
clearance (value from touch probe table + value from cycle) above
the calibration pin.
When calibrating the ball tip radius, the TNC executes an automatic
probing routine. During the first probing cycle, the TNC determines
the center of the calibration ring or stud (coarse measurement)
and positions the touch probe in the center. Then the ball tip
radius is determined during the actual calibration process (fine
measurement). If the touch probe allows probing from opposite
orientations, the center offset is determined during another cycle.
A measuring log is created automatically during calibration. The
log file is named TCHPRAUTO.html. This file is stored in the same
location as the original file. The measuring log can be displayed in
the browser on the control. If a program uses more than one cycle
to calibrate the touch probe, TCHPRAUTO.html will contain all the
measuring logs.
The touch probe orientation determines the calibration routine:
No orientation possible or orientation possible in only one
direction: The TNC executes one approximate and one fine
measurement and determines the effective ball tip radius
(column R in tool.t)
Orientation possible in two directions (e.g. HEIDENHAIN touch
probes with cable): The TNC executes one approximate and
one fine measurement, rotates the touch probe by 180° and
then executes four more probing operations. The center offset
(CAL_OF in tchprobe.tp) is determined in addition to the radius
by probing from opposite orientations.
Any orientation possible (e.g. HEIDENHAIN infrared touch
probes): For probing routine, see "orientation possible in two
directions."