Measuring Kinematics Completely (Cycle9960); Function - Siemens SINUMERIK 840D sl Programming Manual

Measuring variants
3.3 Measure workpiece (milling)
The orientation vectors are calculated and the
/_N_CMA_DIR/_N_VCSROTVEC_SPF file is rewritten in accordance with the measurements.
The VCS file is reactivated.
Example of /_N_CMA_DIR/_N_VCSROTVEC_SPF:
[ROTV1]
-0.9999998863 0.000325562546 0.000348567077
[ROTV2]
0.000605196161 -0.000244774126 -0.9999997869
Verifying the compensation file for VCS
VCSROTVEC_VERIFICATION=1
The existing /_N_CMA_DIR/_N_VCSROTVEC_SPF file is retained during measurement. After
the measurement, the new /_N_CMA_DIR/_N_VCSROTVEC_VERIFI_SPF file is created.
The file contains the orientation vectors of the compensation and the calculated orientation
vectors with active compensation.
Example of /_N_CMA_DIR/_N_VCSROTVEC_VERIFI_SPF:
//active compensation for rotary axis orientation
[ROTV1]
-0.9999998863 0.000325562546 0.000348567077
[ROTV2]
0.000605196161 -0.000244774126 -0.9999997869
//measured rotary axis orientation with active compensation
[ROTV1]
-0.999999998 0.000003232074 0.000003458678
[ROTV2]
0.000006049775 -0.000002447851 -0.999999997
3.3.25

Measuring kinematics completely (CYCLE9960)

3.3.25.1

Function

With the "Measure kinematics completely" measuring variant (CYCLE9960), it is possible to
correct the geometric vectors used to define the kinematic 5-axis transformation on the basis
of kinematic chains and the tool carrier (in the conventional way via $TC_CARR) by measuring
the positions of the ball in space.
The measurement is always carried out by means of workpiece probes which sense up to
twelve positions of a measuring sphere on each rotary axis. The sphere positions are defined
evenly over an area specified by the user so that they correspond to the geometric ratios on
the machine. The sphere positions are set automatically solely through the repositioning of a
rotary axis that is to be measured in each case.
For the use of the CYCLE9960, the kinematics must be set up precisely in accordance with
the drawing dimensions to be able to guarantee automatic repositioning.
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Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Measuring cycles