Siemens sinumerik 840D sl Function Manual page 49

2.6 Generic 5-axis transformation and variants
2.6.1 Functionality
Scope of functions
The scope of functions of generic 5-axis transformation covers implemented 5-axis
transformations (see Chapter "5-axis Transformation") for perpendicular rotary axes as well
as transformations for the universal milling head (one rotary axis parallel to a linear axis, the
second rotary axis at any angle to it, see Chapter "Universal Milling Head").
Applications
In certain cases, it may not be possible to compensate the conventional transformation
machine accuracy, e.g. if:
• the rotary axes are not exactly mutually perpendicular or
• one of the two rotary axes is not positioned exactly parallel to the linear axes
In such cases, generic 5-axis transformation can produce better results.
Programming example
for generic 5-axis transformation is shown in Chapter "Example for Generic 5-axis
Transformation".
Activation
Generic 5-axis transformation can also be activated like any other orientation transformation
using the TRAORI() or TRAORI(n) command (where n is the number of the
transformation). Furthermore, the basic transformation can be transferred in the call in three
other parameters, e.g. TRAORI(1, 1.1, 1.5, 8.9).
A transformation can be deselected implicitly by selecting another transformation or explicitly
with TRAFOOF.
Special functions: 3-Axis to 5-Axis Transformation (F2)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
2.6 Generic 5-axis transformation and variants
Detailed description
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