Page 105 - Threading_Handbook

High Precision Holder for Swiss-Type Lathes
Solution for Internal Threading

The growing demands for high accuracy and flexibility in clamping orientation have led
ISCAR to develop an advanced line of PICCO holders. The PICCOACE features a unique
clamping system which sets new standards for three highly important properties: accuracy, THREAD TURNING
rigidity and clamping orientation flexibility. The PICCOACE holders are available with coolant
channels and provide a solution for internal threading. The large variety of Swiss-type
machines has increased the demand for multi-orientation clamping. Most of the available
tools in the market provide a single clamping orientation, whereas ISCAR’s PICCOACE
offers a solution suitable for all Swiss-type machines, which enables the operator to mount/
dismount the insert from any desired orientation. PICCOACE’s clamping method saves
precious time when replacing an insert. Superb rigidity is achieved due to the advanced
clamping mechanism, which locates the insert in a specific position that ensures optimal
contact points. The clamping system assures extremely high clamping repeatability
of 0.005 mm.

How does it work? The PICCOACE consists of two main parts: a body and an eccentric
cap. When the cap is turned (using the wrench), the excentre moves a special locking shim
that presses on the insert and locks it into a precise position.

Pins Body
Locking shim

Cap

Wrench

Locking shim Insert

Pin
Cap

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