Siemens SINUMERIK 840D sl Programming Manual page 330

Transformations
6.2 Three, four and five axis transformation (TRAORI)
Machine manufacturer
Please refer to the machine manufacturer's notes on axis identifiers that can be set via
machine data for programming the second orientation path of the tool.
Programming
This type of interpolation can be used to program points (using
POLY
interpolation and the "Combine short spline blocks" function can also be activated.
References:
Function Manual, Basic Functions; Continuous-Path Mode, Exact Stop, Look Ahead (B1),
Section: Combine short spline blocks
The other spline types,
COMPCURV
The motion of the two contact points of the tool can be predefined up to the 5th degree when
programming the orientation polynomials for coordinates.
Extended orientation interpolation with additional curve in space and polynomials for
coordinates
N... ORICURVE
N... PO[XH]=(xe, x2, x3, x4, x5)
N... PO[YH]=(ye, y2, y3, y4, y5)
N... PO[ZH]=(ze, z2, z3, z4, z5)
Parameters
ORICURVE
XH YH ZH
Possible polynomials
PO[XH]=(xe, x2, x3, x4,
x5) PO[YH]=(ye, y2, y3,
y4, y5) PO[ZH]=(ze, z2,
z3, z4, z5)
xe, ye, ze
xi, yi, zi
330
) for the two curves in space. Circles and involutes are not permitted. A
ASPLINE
or are not permitted.
COMPCAD
and , and compressor activation using
CSPLINE
Specification of the motion of the second
contact point of the tool and additional
polynomials of the coordinates in question
Interpolation of the orientation specifying a movement
between two contact points of the tool.
Identifiers of the coordinates of the second contact
point of the tool of the additional contour as a curve
in space
Apart from using the appropriate end points, the curves
in space can also be programmed using polynomials.
End points of the curve in space
Coefficients of the polynomials up to the 5th degree
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
) or polynomials (using
G1
spline
BSPLINE
,
COMPON
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