HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 272)

9-5 TNC 425/TNC 415 B/TNC 407
9 3D Touch Probes
I
Z
5
e.g.
e.g.
9.2 Touch Probe Cycles in the MANUAL and ELECTRONIC HANDWHEEL Operating Modes
Fig. 9.6: Calibrating the touch probe length
Y
X
Z
5
or
Calibrating the TS 120/TS 511 touch probes
The touch probe must be calibrated
• for commissioning
• when the stylus breaks
• when the stylus is changed
• when the probe feed rate is changed
• in case of irregularities, such as those resulting from machine heating.
During calibration, the TNC finds the effective length of the stylus and the
effective radius of the ball tip. To calibrate the 3D touch probe, clamp a
ring gauge with known height and known internal radius to the machine
table.
To calibrate the effective length:
Set the datum in the tool axis such that for the machine tool table, Z=0.
Select the calibration function for the touch probe length.
MANUAL OPERATION Z+ Z–
TOOL AXIS = Z
If necessary, enter the tool axis, here Z.
Move the highlight to DATUM.
Enter the height of the ring gauge, here 5 mm.
Move the touch probe to a position just above the ring gauge.
If necessary, change the displayed traverse direction.
3D touch probe contacts the upper surface of the ring gauge.