ES2016031A6 - Hydraulic circuit actuating workpiece-holder jaws in machine tools - Google Patents

Hydraulic circuit actuating workpiece-holder jaws in machine tools

Info

Publication number
ES2016031A6
ES2016031A6 ES8902265A ES8902265A ES2016031A6 ES 2016031 A6 ES2016031 A6 ES 2016031A6 ES 8902265 A ES8902265 A ES 8902265A ES 8902265 A ES8902265 A ES 8902265A ES 2016031 A6 ES2016031 A6 ES 2016031A6
Authority
ES
Spain
Prior art keywords
pressure
valve
subcircuit
low
workpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES8902265A
Other languages
Spanish (es)
Inventor
Milicua Javier Andonegui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danobat SCL
Original Assignee
Danobat SCL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danobat SCL filed Critical Danobat SCL
Priority to ES8902265A priority Critical patent/ES2016031A6/en
Publication of ES2016031A6 publication Critical patent/ES2016031A6/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

Abstract

It comprises an inlet subcircuit which, by means of two controlled reducing valves, of high and low pressure, connected in series with a valve for selecting high/low pressure and with a valve for the closure/opening operation, conveys the active fluid to the corresponding chamber of the cylinder actuating the jaw, return taking place via a subcircuit established across the non-excited position of a first auxiliary valve which, in the excited state, is interposed in a counterpressure subcircuit which, by means of a third reducing valve, with closure at high pressure, is capable of temporarily creating an overpressure in the direction of opening the jaw, cancelling the high clamping pressure, and when this has been achieved low-pressure clamping is re-established subject to a change to the low position in the pressure- selector valve.
ES8902265A 1989-06-28 1989-06-28 Hydraulic circuit actuating workpiece-holder jaws in machine tools Expired - Lifetime ES2016031A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8902265A ES2016031A6 (en) 1989-06-28 1989-06-28 Hydraulic circuit actuating workpiece-holder jaws in machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8902265A ES2016031A6 (en) 1989-06-28 1989-06-28 Hydraulic circuit actuating workpiece-holder jaws in machine tools

Publications (1)

Publication Number Publication Date
ES2016031A6 true ES2016031A6 (en) 1990-10-01

Family

ID=8262778

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8902265A Expired - Lifetime ES2016031A6 (en) 1989-06-28 1989-06-28 Hydraulic circuit actuating workpiece-holder jaws in machine tools

Country Status (1)

Country Link
ES (1) ES2016031A6 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101704059B (en) * 2009-09-30 2011-06-15 浙江大学 Hydraulic system of horizontal buffer cylinder of forging and pressing operating machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101704059B (en) * 2009-09-30 2011-06-15 浙江大学 Hydraulic system of horizontal buffer cylinder of forging and pressing operating machine

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000401