Measuring A Plane That Is Oblique In Space - Siemens SINUMERIK 840D sl Programming Manual

Measuring in JOG
4.2 Workpiece measurement
4.2.6.2

Measuring a plane that is oblique in space

That permits measurement of a workpiece plane that is oblique in space and determination
of "alpha" and "beta" rotation.
That enables orthogonal orientation of the infeed axis with respect to this plane by
coordinate rotation.
Measurement is performed in the infeed axis (3rd axis) at 3 different points in the working
plane.
Approaching the workpiece
Position the probe above measuring point P1, after completion of this measurement above
measuring point P2, after completion of this measurement above measuring point P3.
Enter details in input form
Select of the ZO
Result
Measurement is performed automatically at P1 with the set measuring feed as soon as you
press "NC Start". After successful measurement, the measured value is stored internally and
the "P1 stored" softkey that was previously switched inactive is activated.
After manual positioning at the next measuring point P2 and with softkey "P1 stored"
switched active, pressing "NC start" starts measurement for this measuring point.
The rest of the sequence is as for P1.
If all of the measuring points have been successfully completed and all "Px saved" softkeys
activated, then a vertical "calculate" softkey is displayed. After this softkey is pressed,
"alpha" and "beta" are calculated.
Display and correction
After offset calculation has been completed, the frame components (rotation) of the selected
ZO are redisplayed along with the measured "alpha" and "beta" angle.
ZO correction is performed in such a way that the plane with the calculated points P1 to P3
after activation of the selected ZO is parallel to the new working plane.
Note
• The rejection, repetition, and end of measurement are described in the "Reject, repeat,
• A support function is available to the user when activating the determined ZO correction
See also
Rejection and repetition of measurements (Page 4-35)
General information (Page 4-38)
4-34
end of measurement" chapter.
in the JOG mode. This is shown right after the measurement and is detailed in the
Measuring workpieces chapter, "Support of set-up in JOG - after measurement".
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring cycles