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


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.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    GB-2117828-AOctober 19, 1983Moog IncLinear actuator with piston position transducer
    US-2002013642-A1January 31, 2002Choi Christopher Wai-Ming, Ian CrookstonIntelligent hydraulic manifold used in an injection molding machine
    US-3631766-AJanuary 04, 1972Philips CorpLinear hydromotor
    US-5424941-AJune 13, 1995Mosier Industries, Inc.Apparatus and method for positioning a pneumatic actuator

NO-Patent Citations (0)


Cited By (10)

    Publication numberPublication dateAssigneeTitle
    CN-105298998-AFebruary 03, 2016常州倍特轴承有限公司Microelectronic controlled hydraulic high-precision feeding system
    EP-2506097-A1October 03, 2012FESTO AG & Co. KGRegulation system for controlling an actuator, method for operating an actuator and computer program product
    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