HEIDENHAIN TNC 620 User Manual page 388

11
Programming: Multiple Axis Machining
11.5 FUNCTION TCPM (software option 2)
AXIS POS should be used primarily if your machine
is equipped with Cartesian rotary axes. You can also
use AXIS POS with 45°-swivel heads/ tilting tables
if it is ensured that the programmed rotary axis
coordinates define the desired orientation of the
working plane correctly (this can be accomplished
with a CAM system, for example).
AXIS SPAT: The rotary axis coordinates entered in
the positioning block are space angles that are given
with respect to the currently active (perhaps tilted)
coordinate system (incremental space angle).
After you switch on FUNCTION TCPM with AXIS
SPAT, in the first positioning block you should always
program all three spatial angles in the inclination
angle definition. This also applies if one or more
spatial angles are 0°. AXIS SPAT: The rotary axis
coordinates entered in the positioning block are
space angles that are given with respect to the
currently active (perhaps tilted) coordinate system
(incremental space angle).
Example NC blocks
...
13 FUNCTION TCPM F TCP AXIS POS ...
...
18 FUNCTION TCPM F TCP AXIS SPAT ...
20 L A+0 B+45 C+0 F MAX
...
388
Rotary axis coordinates are axis angles
Rotary axis coordinates are spatial angles
Set tool orientation to B+45 degrees (spatial angle). Define
spatial angles A and C with 0
HEIDENHAIN Conversational Programming | 5/2013
TNC 620 | User's Manual