Vorrichtung zur präzisen Lagebestimmung und Verarbeitungsmaschine dafür

Dispositif de positionnement précis et machine de traitement utilisant ce dispositif

Precision positioning device and processing machine using the same

Abstract

A precision positioning device comprises a hydraulic cylinder extending along the vertical direction and a piston member accommodated in the cylinder. The inside of the cylinder is divided into two chambers by a piston head of the piston member. A hydraulic circuit supplies a fluid at a constant pressure to one of the two chambers and supplies the fluid at a controlled flow rate to the other of the chambers via a servo valve. A control system performs position control with respect to the piston member by controlling the servo valve based on a detection signal from the position sensor, a position command value, a velocity command value, and an acceleration command value. The control system also performs force control with respect to the piston member by controlling the servo valve using detection signals from the first and second pressure sensors and a load command value.

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NO-Patent Citations (0)

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    EP-3062427-A3September 21, 2016Fertigungsgerätebau A. Steinbach GmbH & Co. KGAktor
    US-6817277-B2November 16, 2004Shin Caterpillar Mitsubishi Ltd.Device for controlling hydraulic pressure of construction machine
    US-7941291-B2May 10, 2011Europlacer Industries SaMethod and apparatus for calculating a distance in assembly operation
    US-8387680-B2March 05, 2013Sms Siemag AgPosition-controlled or pressure-controlled device for the hydraulic positioning of components
    WO-2006120441-A1November 16, 2006Blakell Europlacer LimiredMethod and apparatus for calculating a distance in assembly operation
    WO-2008119312-A1October 09, 2008Sms Siemag AgPositionsgeregelte oder druckgeregelte vorrichtung zum hydraulischen anstellen von bauteilen
    WO-2014090288-A1June 19, 2014Eitzenberger Luftlagertechnik GmbhLifting unit and positioning device
    WO-2017025302-A1February 16, 2017Vat Holding AgPneumatischer ventilantrieb