Siemens SINUMERIK 840D sl Programming Manual page 169

With the "Align 3D probe" measuring method, the switching direction of the probe is always
aligned to the current measuring direction. This function is recommended when high demands
are placed on the measuring accuracy. Probe types 712, 713 and 714 are not suitable for this
purpose. A positionable spindle is mandatory.
The measurement result (measurement difference) can be used as follows:
● Correction of a WO so that the workpiece zero is in relation to the center of the hole
● Offset of a tool
● Measurement without offset
Measuring principle
Two opposite points in each of the two geometry axes of the plane are measured. The hole
diameter and the center point are calculated from these four measured actual positions, taking
into account the calibration values. From the measuring points of the 1st geometry axis of the
plane, the center of this axis is calculated and the probe positioned at this center. Starting from
this center point, the two points in the 2nd geometry axis are measured, from which the actual
hole diameter is determined. The measurements start in the positive direction of the
1st geometry axis. The measured difference of the hole diameter is used for a tool offset and
the position of the hole zero point as basis for a work offset.
With the selection Setpoint center point "YES", the position of the hole center can be defined
as workpiece zero through setpoint specifications.
Measure: Hole (CYCLE977)
Requirements
● The probe must be active as tool.
● Tool type of the probe:
– 3D multi probe (type 710)
– Mono probe (type 712)
– Star-type probe (type 714)
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
3.3 Measure workpiece (milling)
Measure: Hole with protection zone (CY‐
CLE977)
Measuring variants
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