Schunk Gmbh &co. Kg Spann-und Greiftechnik

Schunk Gmbh & Co-kg Fabrik Fuer Spann-und Greifwerkzeuge

Friedrich Kurz

Ralf Winkler

Michael Franz

Johann Gross

Tobias Schleusener

Bruno Felhauer

Martin WÜRTH

The invention relates to a quick chucking unit with a chuck receptacle formed by a basic body, with at least one chucking element that can move relative to the basic body between an unlatched and latched position, with a cylinder and a piston element situated within the cylinder, which together with the cylinder, borders at least one pressure region, wherein pressurizing the pressure region moves the chucking element into the latched or unlatched position, wherein the piston element is designed as a piston element fixed in place relative to the basic body, and the cylinder is designed as a cylinder element that can move relative to the basic body and piston element. The invention also relates to a sealing unit for such a quick chucking unit, as well as to a quick chucking system.

Quick chucking unit, with sealing unit, and quick chucking system

The invention relates to an overload protection device () comprising a housing () which is designed to be fixed to a manipulation device. The overload protection device comprises a tool holder () for fixing a tool that is attached to the housing in a displaceable manner, a pre-tensioning unit () for generating a pre-tensioning force between the housing and the tool holder, the pre-tensioning unit being configured as a piston assembly with a pressure piston which can be loaded by a medium and with a switching unit () that operates by means of relative displacement between the housing and the tool holder. The switching unit has a least one electrically conducting switching surface () and at least one electrically conducting contact element () that can be brought into electrical contact with the switching surface, the switching surface () and the contact element () being provided on an opposing surface section () of the tool holder and the housing. The contact element () is configured as a sealing element, which seals off at least sections of the pressure piston from the switching surface ().

Overload protection device comprising an electric switching unit

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Nordheim, Germany

Friedrich Kurz