Sandvik Coromant Quick Change for CNC Lathes - Manual (Page 26)

26
Driven tool
Driven tools allow milling and drilling operations.
Without a Y axis just 2 axis operations can be carried
out – i.e. keyway slots or holes on the center line. To
be able to mill pockets or drill off center line then a
Y axis option is needed. For drilling operations it is
best to use DTHs with internal coolant supply and high
pressure coolant to provide the best chip evacuation
and process security.
Y axis
The Y axis option developed due to the need to use
the driven tools for 3 axes milling and drilling off
center line. Most features requiring milling operations
benefit from Y axis. The added benefit is that double
turning positions can be added thereby increasing the
number of tools for sister tooling or increased variety
of holders reducing the need to change tool holder
styles.
Half turret indexing
Half turret indexing allows double turning positions to
be used increasing the number of tools. This option
is not required if a Y axis is available so it is generally
selected on turning centers without driven tools.