Siemens SINUMERIK 840D sl Programming Manual page 680

Work preparation
3.9 Transformations
ORICONTO:
A6= B6= C6=:
NUT=angle:
NUT=+179:
NUT=-181:
ORICONIO:
A7= B7= C7=:
PHI:
PSI:
Possible polynomials
PO[PHI]=(a2, a3, a4, a5)
PO[PSI]=(b2, b3, b4, b5)
Example: Different changes to orientation
Program code
...
N10 G1 X0 Y0 F5000
N20 TRAORI(1)
N30 ORIVECT
...
N40 ORIPLANE
N50 A3=0 B3=0 C3=1
N60 A3=0 B3=1 C3=1
...
N70 ORICONCW
N80 A6=0 B6=0 C6=1 A3=0 B3=0 C3=1
N90 A6=0 B6=0 C6=1
Further information
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.
680
Interpolation on the peripheral surface of a taper with tangential tran‐
sition
Programming of a rotary axis of the taper (normalized vector)
Opening angle of taper in degrees
Traverse angle less than or equal to 180 degrees
Traverse angle greater than or equal to 180 degrees
Interpolation on the peripheral surface of a taper
Intermediate orientation (programming as normalized vector)
Angle of rotation of the orientation about the direction axis of the taper
Opening angle of the taper
Apart from the different angles, polynomials can also be programmed
up to the
5th degree
Comment
; Orientation transformation ON
; Interpolate tool orientation as a vec-
tor.
; Tool orientation in the plane.
; Select large-circle interpolation.
; Orientation in the Y/Z plane is rota-
ted through 45 degrees, orientation (0,1/
√2,1/√2) is reached at the end of the
block.
; Orientation programming on the outside
of the taper:
The orientation vector is interpolated
on the outside of a taper with the direc-
tion (0,0,1) up to the orientation (1/
√2,0,1/√2) in the clockwise sense, the
angle of rotation is 270 degrees.
; The tool orientation goes through a
full revolution on the outside of the
same taper.
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming