HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 525)

Compensating workpiece misalignment with 3-D touch probe 15.9
15
TNC 640 | User's ManualDIN/ISO Programming | 1/2015
525
Displaying a basic rotation
When you select the PROBING ROT function, the TNC displays
the active angle of basic rotation in the dialog Rotation angle. The
TNC also displays the rotation angle in the additional status display
(
STATUS POS.).
In the status display a symbol is shown for a basic rotation
whenever the TNC is moving the machine axes according to a basic
rotation.
Canceling a basic rotation
Select the probe function by pressing the PROBING ROT soft
key
Enter a rotation angle of zero and confirm with the
SET BASIC
ROTATION soft key
Terminate the probe function by pressing the END soft key
Measuring 3-D basic rotation
The misalignment of any tilted plane can be measured by probing
3 positions. The
Probe plane function enables you to measure this
misalignment and save it as a 3-D basic rotation in the preset table.
Observe the following when selecting the touch
points:
The sequence and position of the touch points
determines how the TNC calculates the direction of
the plane.
With the first two points you specify the direction
of the reference axis. Define the second point in the
positive direction of the desired reference axis. The
position of the third point determines the direction
of the minor axis and tool axis. Define the third
point in the positive Y axis of the desired workplace
coordinate system.
1st point: On the reference axis
2nd point: On the reference axis, in a positive
direction from the first point
3rd point: On the minor axis, in a positive
direction of the desired workpiece coordinate
system
Optionally inputting a datum angle enables you to define the
nominal direction of the probed plane.