PULLING DEVICE FOR A CLAMPING DEVICE AND CLAMPING DEVICE EQUIPPED THEREWITH

A pulling device for generating a pulling movement in a clamping device has a pull-acting hydraulic working cylinder with a pull piston displaceable therein and a pull rod connected to the pull piston. In order to make the pulling device particularly compact and easy to maintain, the pulling device...

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Bibliographische Detailangaben
Hauptverfasser: SEMSEDINI, Saip, ZIMMERMANN, Roman, STÄUBLI, Dominik Michael, GEHRING, Benjamin
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A pulling device for generating a pulling movement in a clamping device has a pull-acting hydraulic working cylinder with a pull piston displaceable therein and a pull rod connected to the pull piston. In order to make the pulling device particularly compact and easy to maintain, the pulling device also has a push-acting hydraulic pump cylinder with a pump piston displaceable therein and a fluidic connection between the pump cylinder and the working cylinder. A movement of the pump piston in a pushing direction causes the hydraulic fluid to flow from the pump cylinder into the working cylinder, where it causes a pulling movement of the pull piston in a pulling direction. The pulling direction is opposite to the pushing direction, and the pump cylinder and the working cylinder are arranged coaxially to each other.