iTNC 530 - TNC 640 - DR. JOHANNES HEIDENHAIN GmbH

Of course the iTNC 530 also shows the
machine operator—both with an error
message and graphically—which machine
components are endangered. If a collision
warning is displayed, the TNC permits
retracting the tool only in those directions
which increase the clearance between the
colliding objects.
The machine tool builder takes care
of the required defi nition of machine
components. The working space and
the collision objects are described using
geometric bodies such as planes, cubes
and cylinders. Complex machine
components can be modeled with multiple
geometric bodies. The tool is automatically
considered a cylinder of the tool radius
(defi ned in the tool table). For tilting
devices, the machine tool builder can use
the tables for the machine kinematics also
to defi ne the collision objects.
The last step of the confi guration process
is defi ning which machine components can
collide. Because the machine design in
itself prevents collisions between certain
machine components, they can be ruled
out from the start. For example, a tool
touch probe like the HEIDENHAIN TT
clamped on the machine table can never
come into contact with the machine cabin.
When using the dynamic collision
monitoring, please note:
While DCM can help reduce the danger
of collision, it cannot eliminate it.
Only the machine manufacturer can
defi ne machine components. The
operator creates fi xtures from fi xture
templates, which are provided by
HEIDENHAIN or by the machine
manufacturer.
Collisions between machine
components (such as swivel heads) and
the workpiece cannot be detected.
DCM cannot be used during operation in
following error mode (which means
without feedforward).
In the Test Run operating mode you can
check for collision before actually
machining the workpiece.
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