HEIDENHAIN TNC 640 User Manual page 649

Touch Probe Cycles: Special Functions | CALIBRATE TS RADIUS INSIDE (Cycle 462, DIN/ISO: G462)
Please note while programming:
Danger of collision!
Cycles for coordinate transformation must not be active during
execution of the touch probe cycles.
Do not activate the following cycles before using touch probe
cycles: Cycle 7 DATUM SHIFT,Cycle 8 MIRROR IMAGE, Cycle
10 ROTATION,Cycle 11 SCALING and 26 AXIS-SPECIFIC
SCALING
Reset any coordinate transformations beforehand
Before a cycle definition you must have programmed a
tool call to define the touch probe axis.
The center offset can be determined only with a suitable
touch probe.
A measuring log is created automatically during
calibration. The log file is named TCHPRAUTO.html.
In order to be able to determine the ball-tip center
misalignment, the TNC needs to be specially prepared
by the machine manufacturer. The machine manual
provides further information.
The characteristic of whether and how your touch probe
can be oriented is already defined in HEIDENHAIN
touch probes. Other touch probes are configured by the
machine tool builder.
HEIDENHAIN only gives warranty for the function of the
probing cycles if HEIDENHAIN touch probes are used.
Q407 RING RADIUS Enter the radius of the ring
gauge. Input range 0 to 9.9999
Q320 Set-up clearance? (incremental): Define
an additional distance between measuring point
and ball tip. Q320 is added to SET_UP in the touch
probe table. Input range 0 to 99999.9999
Q423 Number of probes? (absolute): Number of
measuring points on the diameter. Input range 0 to
8
Q380 Ref. angle in ref. axis? (absolute): Angle
between the reference axis of the working
plane and the first touch point. Input range 0 to
360.0000
HEIDENHAIN | User's manual for cycle programming | 10/2017
NOTICE
NC blocks
5 TCH PROBE 462 CALIBRATION OF A TS
IN A RING
Q407=+5 ;RING RADIUS
Q320=+0 ;SET-UP CLEARANCE
Q423=+8 ;NO. OF PROBE POINTS
Q380=+0 ;REFERENCE ANGLE
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