Siemens SINUMERIK 828D Manual page 89

Milling with sinumerik mold-making with 3- to 5-axis simultaneous milling
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Important functions for 3- to 5-axis machining
Programming
1
Euler angles
3
With B2=45°:
rotated around
Y axis that is
Lead and tilt angles (LEAD/TILT)
In conjunction with LEAD and TILT, the orientation is programmed via a lead angle and a tilt
angle. This is the only orientation programming variant that is linked to a certain orientation
interpolation for the type of orientation definition, namely ORIPATH.
LEAD
TILT
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling
The values programmed with A2, B2, and C2
during orientation programming are
2
interpreted as Euler angles (in degrees).
Starting from the basic position
The orientation vector is obtained by first
rotating a vector in the Z direction around the
Z axis with A2
new X axis with B2,
With A2=90°
around the new Z axis with C2 (Z, X', Z").
rotated
around Z axis
Example:
N020 TRAORI
N030 G54
N040 G0 X0 Y0 Z0
N050 G1 A2=0 B2=0 F1000
N060 G1 A2=90 B2=45
N070 ...
In this case, the value of C2 (rotation around
the Z axis) is meaningless and does not have
to be programmed.
Lead angle for programming tool orientation.
Angle relative to the surface normal vector in the plane put up by
the path tangent and the surface normal vector.
Tilt angle for programming tool orientation.
The TILT angle defines the rotation of the lead angle around the
surface normal vector
3.5
:
1
, then rotating it around the
2
and finally, rotating it
3
89

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