Description Of The Clamping Device - SCHUNK KSC-F 80 Montage- Und Betriebsanleitung

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Description of the clamping device

The KSC-F has been designed for clamping raw parts and finished workpieces against the
fixed jaw.
The quick clamping function of the moving jaw on the workpiece is implemented using the
external, trapezoidal spindle.
The subsequent build-up of clamping force is generated mechanically. As part of a second
stage, a spindle featuring a fine-pitch thread, located and protected within the trapezoidal
spindle takes care of this.
As soon as a correspondingly high counterforce applies to the moving jaw, the internal
spindle with fine-pitch thread disengages and the force is built up.
The clamping device can be used for clamping from the outside in.
When clamping from the inside out, the servo power is not activated and the clamping force
is only about 20% of the nominal clamping force.
The tension force depends on the torque and increases in a linear fashion.
Important:
The nominal clamping force is only achieved when the inner spindle is decoupled. When
decoupling, it is easy to notice when disengagement takes place.
Should decoupling not take place, the inner spindle has to be manually turned back to its
home position.
A sudden foreshortening of the clamping angle at the torque wrench is another indication
that insufficient clamping force is available.
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