W1: Tool offset
18.9 Basic tool orientation
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
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18.9
Basic tool orientation
Application
Normally, the orientation assigned to the tool itself depends exclusively on the active machining plane. For
example, the tool orientation is parallel to Z with
G17
, parallel to Y with
G18
and parallel to X with
G19
.
Different tool orientations can only be programmed by activating a 5axis transformation. The following system
variables have been introduced in order to assign a separate orientation to each tool cutting edge:
Identifiers $TC_DPV3 to $TC_DPV5 are analogous to identifiers $TC_DP3 to $TC_DP5 of the tool length
components.
MD18114
The system variables for describing the tool orientation are only available if machine data is not equal to zero:
MD18114 $MN_MM_ENABLE_TOOL_ORIENT (assign orientation to tool cutting)
Define direction vector
If all four system variables contain 0, the orientation is defined only by the active plane (as before).
If system variable $TC_DPV[t, d] is equal to zero, the other three parameters - if available - define a direction
vector. The amount of the vector is insignificant.
Example:
System variable
Description of tool orientation
Format
Preassignment
$TC_DPV[t, d]
Tool cutting edge orientation
INT
0
$TC_DPV3[t, d]
L1 component of tool orientation
REAL
0
$TC_DPV4[t, d]
L2 component of tool orientation
REAL
0
$TC_DPV5[t, d]
L3 component of tool orientation
REAL
0
Indexing:
Same as tool system variable $TC_DPx[t, d]
t:
T number of cutting edge
d:
D number of cutting edge
MD18114 $MN_MM_ENABLE_TOOL_ORIENT
Value = 1
Only system variable $TC_DPV[t, d] is available.
Value = 2
All four system variables are available.
$TC_DPV[1, 1] = 0
$TC_DPV3[1, 1] = 1.0
$TC_DPV4[1, 1] = 0.0
$TC_DPV5[1, 1] = 1.0
