Parameterization Of Orientable Tool Holder Data - Siemens SINUMERIK 840D sl Function Manual

1.7.4

Parameterization of orientable tool holder data

Application
Machine types for which the table or tool can be rotated, can either be operated as true 5-axis
machines or as conventional machines with orientable tool holders. In both cases, machine
kinematics is determined by the same data, which, due to different parameters, previously
had to be entered twice - for tool holder via system varaibles and for transformations via
machine data. The new transformation type 72 can be used to specify that these two machine
types access identical data.
Transformation type 72
The following machine data can be used to define a generic 5-axis transformation for
transformation type 72 with kinematic data read from the data for an orientable tool holder.
MD24100 $MC_TRAFO_TYPE_1 (definition of transformation 1 in the channel) or
MD24200 $MC_TRAFO_TYPE_2 (definition of transformation 2 in the channel)
From this number data is made available via machine data MD24582
$MC_TRAFO5_TCARR_NO_1 (TCARR-Number for the first 5-axis transformation) for the
first or MD24682 $MC_TRAFO5_TCARR_NO_2 (TCARR-Number for the second 5-axis
transformation) for the second orientation transformation. The corresponding transformation
type can then be derived from the content of kinematic type with parameter $TC_CARR23 -
see following table.
Table 1-3 Machine types for generic 5-axis transformation
Machine type 1
swivel-/ Tool
rotatable:
Kinematic type: T
Transformation 24
type:
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
2 3
Workpiece Tool/workpiece
P M
40 56
F2: Multi-axis transformations
1.7 Generic 5-axis transformation and variants
4
Type 3 or
orientable tool
holder
T, P, M
72 from content of
$TC_CARR23
65