HEIDENHAIN TNC 320 (340 55x-03) Touch Probe Cycles - Manual (Page 16)

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1
.1 Gener
a
l Inf
o
rm
ation on T
ouc
h Pr
obe Cy
cles
1.1 General Information on Touch
Probe Cycles
Method of function
Whenever the TNC executes a touch probe cycle, the 3-D touch probe
approaches with a probing feed rate determined by the machine tool
builder in a direction determined by you. The probing feed rate is
defined 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).
Consider a basic rotation in the Manual
Operation mode
During probing the TNC considers an active basic rotation and
approaches the workpiece at an angle.
Touch probe cycles in the Manual and Electronic
Handwheel modes
In the Manual Operation and El. Handwheel modes, the TNC provides
touch probe cycles that allow you to:
„ Calibrate the touch probe
„ Compensate workpiece misalignment
„ Workpiece presetting
The TNC must be specially prepared by the machine tool
builder for the use of a 3-D touch probe.
Y
X
Z
F
F MAX
F