Corner - Any Corner (Cycle961) - Siemens SINUMERIK 840D sl Programming Manual

Measuring variants
2.3 Measure workpiece (milling)
2.3.10

Corner - any corner (CYCLE961)

Function
This measuring variant can be used to measure the inside or outside corner of an unknown
workpiece geometry. The measurements are performed paraxially to the active workpiece
coordinate system.
In addition to the measurement, the position of the corner can be used as workpiece zero in
a specified work offset (WO).
Measuring principle
The measuring cycle traverses to the 4 measuring points (P1 to P4) one after the other and
establishes the point of intersection of the resulting straight lines and the angle of rotation to
the reference edge of measuring points P1 and P2 to the 1st axis of the plane (X for G17) in
the positive direction
The result, the position of the corner is saved as an absolute value in the result parameters
_OVR[ ] and optionally in the specified work offset (offset and rotation). The measured corner
is shifted by the values in setpoint parameter (X0, Y0 for G17) in the workpiece coordinate
system in the plane.
The position of points P1 and P2 in relation to each other determines the direction of the 1st
axis of the plane of the new coordinate system.
Measure: Any corner, inside (CYCLE961)
Preconditions
● The probe must be called as a tool with a tool length compensation.
● Tool type of the probe: 3D multi probe (type 710)
Starting position before the measurement
The probe is at the measuring height or above the corner (see protection zone) compared to
the corner to be measured or in front of the 1st measuring point.
118
Measure: Any corner, outside (CYCLE961)
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
Measuring cycles