Siemens sinumerik 840d Programming Manual page 221

08.97
7
840D
NCU 572
NCU 573
The following interrelationships are possible:
A' is at angle ϕ to the X axis
B' is at angle ϕ to the Y axis
C' is at angle ϕ to the Z axis
Angle ϕ can be configured in the 0° to +89° range
via machine data.
Depending on the selected direction of tool
orientation, the active machining plane (G17, G18,
G19) must be set in the NC program such that the
tool length compensation acts in the tool orientation
direction.
Transformation with linear swivel axis
This is an arrangement with a moving workpiece and
a moving tool.
The kinematics comprise three linear axes
(X, Y, Z) and two rotary axes at right angles. The
first rotary axis is moved, for example, via the cross
slide of two linear axes, the tool is positioned in
parallel to the third linear axis.
The second rotary axis rotates the workpiece.
The third linear axis (swivel axis) is in the plane of
the cross slide.
The axis sequence of the rotary axes and the
direction of orientation of the tool are set via
machine data as a function of the machine
kinematics.
The following interrelationships are possible:
Axes:
1st rotary axis
2nd rotary axis
Linear swivel axis
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
7.1 Three, four and five-axes transformation: TRAORI
840Di
Transformations
C
Universal milling head, version 2
A
B
Axis sequences:
A A B B C C
B C A C A B
Z Y Z X Y X
7
,
A
ϕ
Z
Y
X
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