Transformations; General Programming Of Transformation Types - Siemens SINUMERIK 828D Programming Manual

Transformations

6.1

General programming of transformation types

General function
You can choose to program transformation types with suitable parameters in order to adapt
the control to various machine kinematics. These parameters can be used to declare both
the orientation of the tool in space and the orientation movements of the rotary axes
accordingly for the selected transformation.
In three-, four-, and five-axis transformations, the programmed positional data always relates
to the tip of the tool, which is tracked orthogonally to the machined surface in space. The
Cartesian coordinates are converted from the basic coordinate system to the machine
coordinate system and relate to the geometry axes. These describe the operating point.
Virtual rotary axes describe the orientations of the tool in space and are programmed with
TRAORI.
In the case of kinematic transformation, positions can be programmed in the Cartesian
coordinate system. The control maps the Cartesian coordinate system traversing
movements programmed with TRANSMIT, TRACYL and TRAANG to the traversing
movements of the real machine axes.
Programming
Three, four and five axis transformations (TRAORI)
The orientation transformation declared is activated with the TRAORI command and the
three possible parameters for transformation number, orientation vector and rotary axis
offsets.
TRAORI(transformation number, orientation vector, rotary axis offsets)
Kinematic transformations
TRANSMIT(transformation number)
transformation.
TRACYL(working diameter, transformation number)
TRAANG(angle of offset axis, transformation number)
Deactivate active transformation
TRAFOOF
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
can be used to deactivate the currently active transformation.
declared transformations are examples of kinematic
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