Siemens SINUMERIK 840D Operation/Programming Manual page 311

3
10.04
Swiveling Yes: compute and swivel (swivel coordinate system and move swivel axes)
No: only compute, don't swivel (only swivel coordinate system, don't move swivel
axes)
Transformation Swiveling additive or new
X0 Reference point for rotation
Y0 Reference point for rotation
Z0 Reference point for rotation
Swivel method Axial swiveling, or swiveling via solid or projection angle
X Axis angle (axial swivel)
Y Axis angle (axial swivel)
Z Axis angle (axial swivel)
α Angle of rotation in the XY plane about the Z axis (swiveling via solid angle)
β
Angle of rotation in space about the Y axis (swiveling via solid angle)
Axis angle (swiveling via projection angle)
Xα
Axis angle (swiveling via projection angle)
Yα
Axis angle (swiveling via projection angle)
Zβ
X1 New zero point of rotated surface
Y1 New zero point of rotated surface
Z1 New zero point of rotated surface
Direction Preferred direction of rotation with 2 alternatives
+: Larger angle of the axis on the scale of the swivel head / swivel table
-: Smaller angle of the axis on the scale of the swivel head / swivel table
Fix tool tip Follow-up: The position of the tool tip is maintained during swiveling.
Do not correct: The position of the tool tip is changes during swiveling.
Programming example
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
Other additive transformations can be added to the offsets before (X0,
Y0, Z0) or after (X1, Y1, Z1) swiveling (see Sec. "Work offsets").
You want to bevel a corner on a cube. The oblique surface is
defined as the machining plane as follows:
• With axial swiveling and swiveling using solid angles, the system
of coordinates is rotated first in the XY plane in such a way that
the upper edge of the inclined surface of the cube runs parallel to
the X axis (rotate 45° about Z axis or α=45°). The system of
coordinates is then tilted so that the inclined plane of the cube is
in the XY plane (rotate -54.736° about Y axis -54.736° or
β=54.736°).
• With the swiveling via projection angles options, the X and Y
axes are rotated through 45° so that the inclined plane of the
cube is in the XY plane. The Z axis is then rotated through 30° so
that the X axis runs through the center point of the inclined
surface (zero point of rotated surface).
Programming with ShopMill
3.10 Miscellaneous functions
The sequence of the axes
can be altered as required
with "Alternat."
The sequence of the axes
can be altered as required
with "Alternat."
3
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