Electro-hydraulic pressing device

An electro-hydraulic pressing device, which is particularly suitable for producing pipe joints by means of press fittings, has a pressure piston, which acts on pressing jaws. The pressure piston divides a pressure piston chamber into a pressure chamber and a rear chamber. A hydraulic pump for feedin...

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Bibliographic Details
Main Author REICHEL VOLKER
Format Patent
LanguageEnglish
Published 22.12.2015
Subjects
BASIC ELECTRIC ELEMENTS
COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR
CURRENT COLLECTORS
DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR
ELECTRICITY
HAND TOOLS
LINE CONNECTORS
MANIPULATORS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
PUNCHING METAL
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:An electro-hydraulic pressing device, which is particularly suitable for producing pipe joints by means of press fittings, has a pressure piston, which acts on pressing jaws. The pressure piston divides a pressure piston chamber into a pressure chamber and a rear chamber. A hydraulic pump for feeding hydraulic fluid from a reservoir is connected to the pressure chamber. A balance piston is arranged in the piston in addition to an overpressure valve. Up until a switch-off pressure is reached, i.e. throughout the pressing process, the balance piston closes a connection opening and a return flow channel.
Bibliography:Application Number: US201214364892