HEIDENHAIN TNC 640 (34059x-05) User Manual

Page 556

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Manual operation and setup

15.8 Calibrating a 3-D touch trigger probe

556

TNC 640 | User's Manual

HEIDENHAIN Conversational Programming | 1/2015

Calibration using a calibration ring

Proceed as follows for manual calibration using a calibration ring:

In the

Manual Operation mode, position the ball tip inside the

bore of the ring gauge

Select the calibration function: Press the

CAL. R

soft key. The TNC displays the current calibration
data.

Enter the diameter of the ring gauge

Enter the start angle

Enter the number of touch points

Start the probing procedure: Press the machine
START button. The 3-D touch probe probes all
required touch points in an automatic probing
routine and calculates the effective ball-tip radius.
If probing from opposite orientations is possible,
the TNC calculates the center offset

Checking the results

Press the

OK soft key for the values to take effect

Press the

END soft key to terminate the calibrating

function. The TNC logs the calibration process in
TCHPRMAN.html.

In order to be able to determine the ball-tip center
misalignment, the TNC needs to be specially
prepared by the machine manufacturer. Refer to your
machine manual.

Calibration with a stud or calibration pin

Proceed as follows for manual calibration with a stud or calibration
pin:

In the

Manual operation mode, position the ball tip above the

center of the calibration pin

Select the calibration function: Press the

CAL. R

soft key

Enter the diameter of the stud

Enter the safety clearance

Enter the start angle

Enter the number of touch points

Checking the results

Press the

OK soft key for the values to take effect

Press the

END soft key to terminate the calibrating

function. The TNC logs the calibration process in
TCHPRMAN.html.

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