Extension Of The Generic Transformation To 7 Axes - Siemens SINUMERIK 840DE sl Function Manual

F2: Multi-axis transformations
3.7 Generic 5-axis transformation and variants
Orientation normal vector
Vector components (x,y,z) of the orientation normal vector of a tool can be defined in the tool
data using $TC_DPVN3 - $TC_DPVN5. The significance of the vector components is
analogous to the vector components of the orientation vector:
● $TC_DPVN3: Component in the direction of the tool length L1,
● $TC_DPVN4: Component in the direction of the tool length L2
● $TC_DPVN5: Component in the direction of the tool length L3.
The following settings must be made so that the tool data for the orientation normal vector can
be used:
MD18114 $MN_MM_ENABLE_TOOL_ORIENT = 3 (assign tool cutting edges orientation)
The coordinate system is not rotated by rotating the tool with AN3, BN3, CN3 or THETA.
Default setting of the orientation normal vector
The initial state of the orientation normal vector is defined when activating the transformation in
one of the following ways:
1. For a TRAORI function call, vector components (x,y,z) are transferred as parameters 8 - 10:
TRAORI(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10)
2. If, when calling the TRAORI function, no orientation normal vector is specified, and one tool
is active, then vector components (x,y,z) are taken from the tool data:
3. If, when calling the TRAORI function, no orientation normal vector is specified, and no tool
is active, then vector components (x,y,z) are taken from the following machine data:
MD24567 $MC_TRAFO6_BASE_ORIENT_NORMAL_<x>[ 0 ... 2 ] (tool normal vector)
The position of the orientation coordinate system of a standard tool depends on the active plane
(G17, G18, G19) corresponding to the following table:
Direction of the orientation vector
Direction of the orientation normal vector
See also
Example of a generic 6-axis transformation (Page 245)
3.7.6

Extension of the generic transformation to 7 axes

Application
The generic 5-/6-axis transformation with transformation type 24 is extended by a 7th or
6th axis, which rotates the workpiece. The work space of the transformation can be expanded
in this way.
182
$TC_DPVN3, $TC_DPVN4, $TC_DPVN5
G17 G18
Z Y
Y X
Function Manual, 06/2019, A5E47435470B AA
G19
X
Z
Transformations