Kinematics (Cycle996) - Siemens SINUMERIK 840D sl Programming Manual

Measuring variants
3.3 Measure workpiece (milling)
Parameters
_OVR [15]
_OVR [16]
_OVR [17]
_OVR [18]
_OVR [19]
_OVR [20]
_OVR [21]
Table 3-31
Parameters
_OVR [22]
_OVR [23]
_OVR [24]
_OVR [25]
_OVR [26]
_OVR [27]
_OVR [28]
3.3.23 3D - kinematics (CYCLE996)
Function
With the "Measure kinematics" measuring variant (CYCLE996), it is possible to calculate the
geometric vectors used to define the kinematic 5-axis transformation (TRAORI and TCARR)
by measuring the positions of the sphere in space.
The measurement is essentially carried out by means of workpiece probes which scan three
positions of a measuring sphere on each rotary axis. The sphere positions can be defined in
accordance with user specifications so that they correspond to the geometric ratios on the
machine. The only way of setting the sphere positions is to reposition the rotary axis that is to
be measured in each case.
Precise knowledge of the mechanical system of the machine is not required when using
CYCLE996. No dimension drawings or structural drawings are necessary to make
measurements.
If the vectors of the machine are approximately known, the drawing dimensions must be
entered in the vectors of the swivel data set and the machine measured with active orientable
tool carrier (TCARR) or active 5-axis transformation (TRAORI). See also the programming
example at the end of this section.
Reference: /PGZ/ Programming Manual
CYCLE800.
214
Description
Actual value center point coordinate, 1st axis of the plane
Actual value center point coordinate, 2nd axis of the plane
Actual value center point coordinate, 3rd axis of the plane
Ball diameter difference
Difference center point coordinate, 1st axis of the plane
Difference center point coordinate, 2nd axis of the plane
Difference center point coordinate, 3rd axis of the plane
Intermediate results 2nd measurement (measuring probe shaft or 2nd probe ball at the
shaft)
Description
Setpoint calibration ball diameter
Center point setpoint in the 1st axis of the plane
Center point setpoint in the 2nd axis of the plane
Center point actual value in the 1st axis of the plane
Center point actual value in the 2nd axis of the plane
Center point difference in the 1st axis of the plane
Center point difference in the 2nd axis of the plane
SINUMERIK 840D sl/840D/840Di sl Cycles ,
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Unit
mm
mm
mm
mm
mm
mm
mm
Unit
mm
mm
mm
degrees
degrees
Degrees
degrees
Measuring cycles