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

2.7.4

Parameterization of orientable toolholder 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 toolholders. In both cases, machine
kinematics is determined by the same data, which, due to different parameters, previously had
to be entered twice - for toolholder via system variables 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 toolholder.
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 2-2
Machine type
Swivel/
rotatable:
Kinematic type:
Transformation
type:
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Machine types for generic 5-axis transformation
1 2
tool workpiece
T P
24 40
F2: Multi-axis transformations
2.7 Generic 5-axis transformation and variants
3
Tool/workpiece
M
56
4
Type 3 or orienta‐
ble toolholder
T, P, M
72 from content of
$TC_CARR23
69