HEIDENHAIN TNC 320 (34055x-06) Cycle programming - Manual (Page 254)

Using Touch Probe Cycles
13.1 General information about touch probe cycles
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TNC 320 | User's Manual Cycle Programming | 5/2013
13.1 General information about touch probe
cycles
HEIDENHAIN only gives warranty for the function of
the probing cycles if HEIDENHAIN touch probes are
used.
The TNC must be specially prepared by the machine
tool builder for the use of a 3-D touch probe.
Refer to your machine manual.
Method of function
Whenever the TNC runs a touch probe cycle, the 3-D touch probe
approaches the workpiece in one linear axis. This is also true
during an active basic rotation or with a tilted working plane. The
machine tool builder determines the probing feed rate in a machine
parameter (see "Before You Start Working with Touch Probe Cycles"
later in this chapter).
When the probe stylus contacts the workpiece,
the 3-D touch probe transmits a signal to the TNC: the
coordinates of the probed position are stored,
the touch probe stops moving, and
returns to its starting position at rapid traverse.
If the stylus is not deflected within a defined distance, the TNC
displays an error message (distance:
DIST from touch probe table).
Consideration of a basic rotation in the Manual
Operation mode
During probing the TNC considers an active basic rotation and
approaches the workpiece at an angle.
Cycles in the Manual and El. Handwheel modes
In the Manual Operation and El. Handwheel modes, the TNC
provides touch probe cycles that allow you to:
Calibrate the touch probe
Compensating workpiece misalignment
Setting datums