Siemens SINUMERIK 840D sl Programming Manual page 243

Machine type
Three-axis transformation
machine types 1 and 2
Four-axis transformation
machine types 1 and 2
Five-axis transformation
machine types 3
Single-axis swivel head
and single-axis rotary table
Generic 5/6-axis transformations
Machine type
Generic five/six-axis
transformation machine
types 4
Two-axis swivel head with
tool which rotates around
itself and single-axis rotary
table
When calling "generic three-, four-, and five/six-axis transformation", the basic orientation of
the tool can also be transferred. The restrictions in respect of the directions of the rotary
axes no longer apply. If the rotary axes are not exactly vertical to one another or existing
rotary axes are not exactly parallel with the linear axes, "generic five-/six-axis transformation"
can provide better results in respect of tool orientation.
Kinematic transformations TRANSMIT, TRACYL and TRAANG
For milling on turning machines or an axis that can be set for inclined infeed during grinding,
the following axis arrangements apply by default in accordance with the transformation
declared:
TRANMIT
Face machining in the
turning clamp
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
7.1 General programming of transformation types
Programming of orientation
Programming of tool orientation only in the plane, which is
vertical to the rotary axis. There are
two translatory axes (linear axes) and
one axis of rotation (rotary axis).
Programming of tool orientation only in the plane, which is
vertical to the rotary axis. There are
three translatory axes (linear axes) and
one axis of rotation (rotary axis).
Programming of orientation transformation. Kinematics with
three linear axes and two orthogonal rotary axes.
The rotary axes are parallel to two of the three linear axes.
The first rotary axis is moved by two Cartesian linear axes. It
rotates the third linear axis with the tool. The second rotary
axis rotates the workpiece.
Programming of orientation transformation
Programming of orientation transformation. Kinematics with
three linear axes and three orthogonal rotary axes.
The rotary axes are parallel to two of the three linear axes.
The first rotary axis is moved by two Cartesian linear axes. It
rotates the third linear axis with the tool. The second rotary
axis rotates the workpiece. The basic tool orientation can also
be programmed with additional rotation of the tool around
itself with the THETA rotary angle.
Activation of polar transformation
A rotary axis
An infeed axis vertical to the axis of rotation
A longitudinal axis parallel to the axis of rotation
Transformations
7-5