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ES378537A1 - Hydraulic driving device for bending presses - Google Patents

Hydraulic driving device for bending presses

Info

Publication number
ES378537A1
ES378537A1 ES378537A ES378537A ES378537A1 ES 378537 A1 ES378537 A1 ES 378537A1 ES 378537 A ES378537 A ES 378537A ES 378537 A ES378537 A ES 378537A ES 378537 A1 ES378537 A1 ES 378537A1
Authority
ES
Spain
Prior art keywords
compensating
pressure
receive
pistons
action
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
Application number
ES378537A
Other languages
Spanish (es)
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.)
VERRINA SpA
Original Assignee
VERRINA SpA
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 VERRINA SpA filed Critical VERRINA SpA
Publication of ES378537A1 publication Critical patent/ES378537A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
    • B30B15/245—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam using auxiliary cylinder and piston means as actuating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

A hydraulic drive for trimming presses, including an alternately vertically movable upper head and two hydraulic control cylinders arranged spaced apart from each other and arranged to receive the simultaneous action of pressure to cause the head to lower and raise upper, characterized by two compensating cylinders each of which has a compensating piston, said pistons being firmly interconnected and having the same surface on the faces of the same directed in the same direction, to receive the action of pressure, each being connected one of the compensating cylinder spaces separated by the compensating pistons to the pressure space of a control or displacement cylinder and the compensating cylinder spaces on the opposite sides of the compensating pistons are connected to receive the action of the same hydraulic back pressure or pressure impulsion. (Machine-translation by Google Translate, not legally binding)
ES378537A 1969-03-29 1970-03-25 Hydraulic driving device for bending presses Expired ES378537A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT691369 1969-03-29

Publications (1)

Publication Number Publication Date
ES378537A1 true ES378537A1 (en) 1972-06-16

Family

ID=11122261

Family Applications (1)

Application Number Title Priority Date Filing Date
ES378537A Expired ES378537A1 (en) 1969-03-29 1970-03-25 Hydraulic driving device for bending presses

Country Status (6)

Country Link
US (1) US3613365A (en)
BR (1) BR7017745D0 (en)
DE (1) DE2013875A1 (en)
ES (1) ES378537A1 (en)
FR (1) FR2035984A1 (en)
GB (1) GB1308808A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5648885B2 (en) * 1972-03-07 1981-11-18
FR2674460A1 (en) * 1991-03-27 1992-10-02 Mercier J Improvements to hydraulic presses, in particular to sheet-metal bending presses
DE4235971C1 (en) * 1992-10-26 1994-04-07 M & S Brugg Ag Brugg Press brake
NL1004820C2 (en) * 1996-12-18 1997-12-23 Delem B V Control of bending press e.g. for sheet metal
DE10245778A1 (en) * 2002-09-26 2004-04-08 Reinhardt Maschinenbau Gmbh A bending machine for sheet metal workpieces has a power assisted drive to clamp the workpiece between the holding blocks
DE102006003500B3 (en) * 2006-01-24 2007-08-16 Ralf Beger Blechabkantvorrichtung
DE102007040286A1 (en) * 2007-08-24 2009-02-26 Wieber, Christian, Dipl.-Ing.(FH), Batu Caves Hydraulic press
EP2722164B1 (en) 2012-10-18 2017-01-18 Nivora IP B.V. Spring means for device for working sheet-like material
CN107745020B (en) * 2017-11-16 2023-08-01 安徽德系重工科技有限公司 Hydraulic system of four-roller corrugated plate bending machine
CN109049592B (en) * 2018-09-21 2023-09-15 宁波力劲塑机智造有限公司 Template parallelism compensation control system of multi-material injection molding machine
CN109591358B (en) * 2019-01-25 2021-03-16 安徽远都机床股份有限公司 Closed single-point press that stamping accuracy is high
CN111503072A (en) * 2020-04-10 2020-08-07 安徽东海机床制造有限公司 Efficient numerical control bending machine hydraulic system and control method thereof
CN111623000B (en) * 2020-07-30 2020-10-16 常州市新创智能科技有限公司 Hydraulic synchronous control method
CN112140613B (en) * 2020-08-14 2022-07-26 中国船舶重工集团公司第七0四研究所 Small-size hydraulic press system of superhigh pressure
CN113386332B (en) * 2021-05-29 2022-07-19 广东达诚技术有限公司 Double-push servo pre-stretching method and pre-stretching structure of forming machine
CN115365337A (en) * 2022-08-26 2022-11-22 新代科技(苏州)有限公司 Automatic bending processing mode for non-rectangular plate

Also Published As

Publication number Publication date
GB1308808A (en) 1973-03-07
BR7017745D0 (en) 1973-02-20
FR2035984A1 (en) 1970-12-24
DE2013875A1 (en) 1970-10-15
US3613365A (en) 1971-10-19

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