Setting Up A Corner With 4 Points; General Information - Siemens SINUMERIK 840D sl Programming Manual

Measuring Cycles for Milling and Machining Centers
5.8 CYCLE961 workpiece: Setup inside and outside corner
5.8.3

Setting up a corner with 4 points

5.8.3.1

General information

Function
Using this measuring cycle and the _MVAR=117, _MVAR=118
measuring variants, the internal and external corner of an unknown workpiece geometry can
be measured and set up.
One after the other, points P2, P1, P3, P4 are traversed in the cycle with positioning feedrate
at positioning height. At each of these points the probe is lowered to measuring depth and
then traversed at measuring feedrate parallel to the axis against the workpiece corner.
The cycle uses the relative positions of points P1 to P4 to determine the approach directions
and the measuring axis. The cycle calculates the corner point and the angle between the
reference edge and the positive abscissa axis of the current plane from the results of
measurement.
The angle is calculated by measuring P2 and P1 (reference edge).
The position of corner, corner point coordinates, and rotation are stored in result parameter
_OVR[ ].
If _KNUM>0, absolute correction to the coarse offset in the specified ZO (translation and
rotation) is performed.
The measuring points are derived from the specified 4 points. Measurement is performed
paraxially to the existing workpiece coordinate system (WCS).
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Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring cycles