Siemens SINUMERIK 840D sl Programming Manual page 381

Extended orientation interpolation on the peripheral surface of a taper
N... ORICONCW or ORICONCCW
N... A6= B6= C6= A3= B3= C3=
or
N... ORICONTO
N... G1 X Y Z A6= B6= C6=
or
N... ORICONIO
N... G1 X Y Z A7= B7= C7=
N... PO[PHI]=(a2, a3, a4, a5)
N... PO[PSI]=(b2, b3, b4, b5)
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Note
Programming direction vector A6, B6, C6 for the rotary axis of the taper
The programming of an end orientation is not absolutely necessary. If no end orientation
is specified, a full outside taper with 360 degrees is interpolated.
Programming the opening angle of the taper with NUT=angle
An end orientation must be specified.
A complete outside taper with 360 degrees cannot be interpolated in this way.
Programming the intermediate orientation A7, B7, C7 on the outside of the taper
An end orientation must be specified. The change in orientation and the direction of
rotation is defined uniquely by the three vectors Start orientation, End orientation and
Intermediate orientation. All three vectors must be different. If the programmed
intermediate orientation is parallel to the start or end orientation, a linear large-radius
circular interpolation of the orientation is executed in the plane that is defined by the start
and end vector.
6.2 Three, four and five axis transformation (TRAORI)
Interpolation on the outside of a taper with
direction vector in the clockwise/counter-
clockwise direction of the taper and end orientation
or
tangential transition and
specification of end orientation
or
specification of end orientation and intermediate
orientation on the outside of the taper with
polynomials for angle of rotation and
polynomials for opening angle
Transformations
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