iTNC 530 - TNC 640 - DR. JOHANNES HEIDENHAIN GmbH

Workpiece presetting
You can use a reference point to assign a
defi ned value in the iTNC display to any
workpiece position. Finding this point
quickly and reliably reduces nonproductive
time and increases machining accuracy.
The iTNC 530 features probing cycles for
automatic presetting. Once found, you can
save reference points
in the workpiece preset table,
in a workpiece datum table, or
by directly setting the displayed value.
Workpiece presetting
At a corner, for example, or in the center of
a bolt hole circle
Preset table: The iTNC’s central reference
point management
The preset table makes fl exible machining,
shorter setup times and increased
productivity possible. In other words,
it makes it much easier to set up the
machine.
In the preset table you can save any
number of reference points and assign an
individual basic rotation to each one.
When working in a tilted plane and
presetting a reference point, the iTNC
includes the respective positions of the
rotary axes. In this way, the reference point
also remains active in any other angular
position.
On machines with an automatic spindle
head changer, the reference point remains
unchanged after a head exchange, even if
they differ kinematically (i.e. in their
dimensions).
The iTNC automatically creates separate
preset tables for individual traverse ranges
(such as for alternating table machining).
When changing traverse ranges, the iTNC
activates the correct preset table with the
most recently active reference point.
There are three ways to save reference
points in the preset table:
In the Manual mode by soft key
By using the probing functions
With the automatic probing cycles
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