Yx z 10 – HEIDENHAIN TNC 407 (280 580) User Manual User Manual

Page 273

TNC 425/TNC 415 B/TNC 407

9-6

3D Touch Probes

Fig. 9.7:

Calibrating the touch probe radius
and determining center
misalignment

9.2

Touch Probe Cycles in the MANUAL and ELECTRONIC HANDWHEEL Operating Modes

To calibrate the effective radius:

Position the ball tip in the bore hole of the ring gauge.

Compensating center misalignment

After the touch probe is inserted it normally needs to be aligned exactly
with the spindle axis. This misalignment is measured with this calibration
function and is automatically compensated electronically.

For this operation the 3D touch probe is rotated by 180°. The rotation is
initiated by a miscellaneous function that is set by the machine tool builder
in the machine parameter MP6160.

The center misalignment is measured after the effective ball tip radius is
calibrated.

Select the calibrating function for the ball-tip radius and the touch
probe center misalignment.

MANUAL OPERATION

X+ X Y + Y

TOOL AXIS = Z

RADIUS RING GAUGE = 0

3D touch probe contacts a position on the bore in each axis direction:
The effective ball-tip radius is stored.

Determine the ball-tip center misalignment (or terminate the calibra-
tion function with END): rotate the 3D touch probe system by 180

The 3D touch probe contacts one position on the bore hole for each
axis direction: store the touch probe center misalignment.