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

3.3.12

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 machine coordinate
system. Rotation of the coordinates about Z is not taken into consideration. To traverse the
probe parallel to the edges to the corner to be measured, this must be achieved by means of
corresponding angle specifications in mask parameter α0.
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)
Requirements
● The probe must be called as a tool with a tool length compensation.
● Tool type of the probe:
– 3D multi probe (type 710)
– Mono probe (type 712)
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
3.3 Measure workpiece (milling)
Measure: Any corner, outside (CYCLE961)
Measuring variants
157