Siemens Sinumerik 840D sl Programming Manual page 351

Description
If changes of orientation along the peripheral surface of a taper anywhere in space are to be
described, the vector about which the tool orientation is to be rotated must be known. The
start and end orientation must also be specified. The start orientation results from the
previous block and the end orientation has to be programmed or defined via other conditions.
Programming in the ORIPLANE plane corresponds to ORIVECT
The programming of large-radius circular interpolation together with angle polynomials
corresponds to the linear and polynomial interpolation of contours. The tool orientation is
interpolated in a plane that is defined by the start and end orientation. If additional
polynomials are programmed, the orientation vector can also be tilted out of the plane.
Programming of circles in a plane G2/G3, CIP and CT
The extended orientation corresponds to the interpolation of circles in a plane. For the
corresponding programming options for circles with centers or radii such as G2/G3, circle via
intermediate point CIP and tangential circles CT, see
References: Programming Manual Fundamentals, "Programming motion commands".
Orientation programming
Interpolation of the orientation vector on the peripheral surface of a taper ORICONxx
Four different types of interpolation from G-code group 51 can be selected for interpolating
orientations on the peripheral surface of a taper:
1. Interpolation on the outside of a taper in the clockwise direction ORICONCW with
specification of end orientation and taper direction, or opening angle. The direction vector
is programmed with identifiers A6, B6, C6 and the opening angle of the taper with
identifier NUT= value range in interval 0 degrees to 180 degrees.
2. Interpolation on the outside of a taper in the counterclockwise direction ORICONCCW with
specification of end orientation and taper direction, or opening angle. The direction vector
is programmed with identifiers A6, B6, C6 and the opening angle of the taper with
identifier NUT= value range in interval 0 degrees to 180 degrees.
3. Interpolation on the outside of a taper ORICONIO with specification of end orientation and
an intermediate orientation, which is programmed with identifiers A7, B7, C7.
4. Interpolation on the outside of a taper ORICONTO with tangential transition and
specification of end orientation. The direction vector is programmed with identifiers A6,
B6, C6.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
6.2 Three, four and five axis transformation (TRAORI)
Transformations
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