EP1189745B1 - Dispositif de decoupage fin de pieces dans un materiau - Google Patents

Dispositif de decoupage fin de pieces dans un materiau Download PDF

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Publication number
EP1189745B1
EP1189745B1 EP00947859A EP00947859A EP1189745B1 EP 1189745 B1 EP1189745 B1 EP 1189745B1 EP 00947859 A EP00947859 A EP 00947859A EP 00947859 A EP00947859 A EP 00947859A EP 1189745 B1 EP1189745 B1 EP 1189745B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
compensating
ring
projection
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
EP00947859A
Other languages
German (de)
English (en)
Other versions
EP1189745A2 (fr
Inventor
Ernst Rytz
Hans-Rudolf Gubler
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.)
Feintool International Holding AG
Original Assignee
Feintool International Holding AG
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 Feintool International Holding AG filed Critical Feintool International Holding AG
Publication of EP1189745A2 publication Critical patent/EP1189745A2/fr
Application granted granted Critical
Publication of EP1189745B1 publication Critical patent/EP1189745B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
    • Y10T83/5669—Work clamp
    • Y10T83/5787—Clamp driven by yieldable means
    • Y10T83/5805—Fluid pressure yieldable drive means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8858—Fluid pressure actuated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9425—Tool pair

Definitions

  • the invention relates to a device for fineblanking of workpieces made of a material with one under the Printing of a ring-shaped cylinder with a press plate Ring jag and one guided in the press plate Cutting punch with a cutting insert on a ram Counterholder (ejector) is assigned, according to the preamble of claim 1 (see e.g. DE-A-19642635).
  • a fineblanking tool consists essentially of a press plate with Ring spike in which a cutting punch is guided.
  • the cutting punch is a counterholder or Ejector assigned in a cutting insert.
  • press plate and cutting punch or cutting plate and counterholder becomes a workpiece, for example a Sheet metal, introduced.
  • Upper part and lower part of the tool are closed and the material inside and outside the cutting line by means of a ring point and Counterforce clamped.
  • Press plate and cutting plate are guided relative to the cutting punch and counterholder and so cut out the workpiece from the material.
  • To the cut opens the tool and that Workpiece usually by means of the counter holder from the Cutting plate ejected.
  • the force works with these conventional fineblanking presses of the ring-toothed cylinder, which is usually in the upper crosshead of the Machine stand is arranged, the cutting force opposite. Also the counter holder cylinder, which is in the plunger or is integrated in the working piston, presses the workpiece against the tool upper part, the counterholder support force acts also against the cutting force.
  • the counterforce of the Ring-toothed cylinders can be up to 50% and that of the Counterholder up to 25% of the workforce. In order to but the performance of the entire device becomes significant reduced.
  • the present invention has for its object a To provide device of the type mentioned above, in which the ring tooth cylinder force in a simple way is compensated and the structure of which is considerably simplified is.
  • the plunger counteracts at least one compensation cylinder is supported, the is hydraulically connected to the ring tooth cylinder.
  • the compensation cylinder is designed so that it with the ring tooth cylinder in a hydraulic Balance is there. This means that through the Compensation cylinder with every ram stroke Ring tooth cylinder force is absorbed and compensated, so that they have no influence on the actual slide stroke Has.
  • the compensation cylinder is on via a piston rod a piston firmly connected to the plunger. He is that exposed to the same pressure as a piston in the Ring-toothed cylinder, the manufacture of this
  • the easiest way to achieve pressure equilibrium is that an effective cross-sectional area of the compensation pistons the effective cross-sectional area of the ring-toothed cylinder piston equivalent. This does not result in any additional Pressure supply elements to maintain the same pressures needed on both pistons. It is enough if the two Work spaces of ring-toothed cylinders and compensation cylinders hydraulically with each other via a line are connected. The same-sized cross-sectional areas of the Pistons then exert equal pressure on the Press plate or the cutting plate or the plunger.
  • the ring-toothed cylinder is opened a crosshead of the machine frame arranged so that an additional traverse is not required. So that is moving Mass with a ram stroke much lower, so that the Energy consumption per stroke and the weight of the machine can be kept much smaller. It is not additional connecting frame (traverse) required, see above that the construction is much simpler and cheaper becomes.
  • the mounting options are significantly improved and the machine height is reduced.
  • Fineblanking tool 8 is provided, as is generally known is.
  • Fineblanking manual for the practice, publisher: Feintool AG Lyss, 2nd edition, 1977, pages 15 to 17.
  • Such a fineblanking tool 8 has one Cutting punch 9, which is guided in a press plate 10 is.
  • This press plate 10 points toward the sheet 1 Ring point 11 on.
  • the opposite is supported Press plate 10 against an annular ram piston 12 in one Ring-toothed cylinder 13 from.
  • the ring-toothed cylinder 13 is located in a corresponding housing 14 on the Crosshead 3, the ring-shaped piston 12 via a Piston rod 15 and various, unspecified Pressure plates and ram through the crosshead 3 with the press plate 10 is connected.
  • the cutting punch 9 is a counterholder 16 assigned, which can also serve as an ejector.
  • the Hydraulics for pressurizing this counter bracket 16 will not be described in more detail here. A Description is in the above manual.
  • the counter holder 16 is guided in a cutting plate 17, the cutting punch 9 the workpiece to be cut presses into this insert 17, the Counterholder 16 evades.
  • the stroke of the plunger 7 in the direction of the double arrow 18 is effected via two master cylinders 19.1 and 19.2 in which are each guided by a piston 20.1 and 20.2.
  • everyone Piston 20.1 and 20.2 is via a piston rod 21.1 and 21.2 firmly connected to the plunger 7.
  • the tappet 7 is also supported against preferably four compensation cylinders 22, whereby only one is described below.
  • the Compensation cylinder 22 becomes a compensation piston 23 performed, which in turn with a piston rod 24 with the plunger 7 is connected.
  • the or the compensation piston 23 an effective Cross-sectional area that of that of the annular toothed piston 12th equivalent.
  • the ring-toothed cylinder 13 and the Compensation cylinder 22 via a hydraulic connection 25 coupled together.
  • this hydraulic connection 25 can via a further connection 26 and a logic valve 27 an oil tank, not shown, can be switched on.
  • the two master cylinders 19.1 and 19.2 are also with each other and via a valve 28 with one not closer shown oil tank connected.
  • the cutting punch When the tool 8 is open, the cutting punch is between 9 and the cutting plate 17 or the pressing plate 10 and the Counterholder 16 introduced a sheet 1, from which a Workpiece to be cut.
  • the plunger 7 is by means of the two master cylinders 19.1 and 19.2 ramped up, the sheet 1 between Insert 17 and press plate 10 is clamped. there the ring prong 11 is pressed into the sheet 1.
  • the Forces emanating from the ring-toothed cylinder 13 are neutralized by the compensation cylinder 22 because whose pistons share the same effective Have cross-sectional area, such as Ring-toothed cylinder piston 12.
  • the cutting punch 9 presses the workpiece to be cut into the cutting plate 17, the counter-holder 16 yields.
  • the machine opens, and the counter-holder 16 can Eject the workpiece from the insert 17.
  • connection 25 is not fast enough oil exchange takes place.
  • a high oil quantity required for a short time via the logic valve 28 are sucked in from the oil tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Punching Or Piercing (AREA)
  • Disintegrating Or Milling (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Claims (8)

  1. Dispositif de découpage fin de pièces dans un matériau (1), comprenant un plateau de serrage (10) soumis à la pression d'un vérin d'anneau de retenue (13), un anneau de retenue (11), un poinçon de coupe (9) coulissant dans le plateau (10) et auquel est associée une plaque de coupe (17) montée sur un poussoir (7) et équipée d'un contre-appui (16) (éjecteur),
    caractérisé en ce que
    le poussoir (7) s'appuie sur au moins un vérin de compensation (22) relié hydrauliquement au vérin de l'anneau de retenue (13).
  2. Dispositif selon la revendication 1,
    caractérisé en ce qu'
    il est prévu quatre vérins de compensation.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    dans le (ou dans chaque) vérin de compensation (22) est monté un piston (23) solidaire par sa tige (24) du poussoir (7).
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    la surface de section efficace du ou de l'ensemble des pistons de compensation (23) est égale à la surface de section efficace du piston (12) du vérin d'anmeau de retenue.
  5. Dispositif selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    le vérin d'anneau de retenue (13) est monté sur la traverse de tête (3) d'un bâti de machine (2).
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    le poussoir (7) est de plus en appui sur au moins un vérin principal (19.1, 19.2).
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    un piston (20.1, 20.2) du vérin principal (19.1, 19.2) présente une surface de section efficace supérieure à celle du ou de l'ensemble des pistons de compensation (23).
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    la liaison hydraulique (25) entre les vérins de compensation (22) et le vérin d'anneau de retenue (13) présente également une liaison (26) à un réservoir d'huile par l'intermédiaire d'une soupape logique (27).
EP00947859A 1999-06-25 2000-06-20 Dispositif de decoupage fin de pieces dans un materiau Expired - Lifetime EP1189745B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19929163 1999-06-25
DE19929163A DE19929163C1 (de) 1999-06-25 1999-06-25 Vorrichtung zum Feinschneiden von Werkstücken aus einem Blech
PCT/EP2000/005681 WO2001000396A2 (fr) 1999-06-25 2000-06-20 Dispositif de decoupage fin de pieces dans un materiau

Publications (2)

Publication Number Publication Date
EP1189745A2 EP1189745A2 (fr) 2002-03-27
EP1189745B1 true EP1189745B1 (fr) 2003-02-26

Family

ID=7912526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00947859A Expired - Lifetime EP1189745B1 (fr) 1999-06-25 2000-06-20 Dispositif de decoupage fin de pieces dans un materiau

Country Status (8)

Country Link
US (1) US7806031B1 (fr)
EP (1) EP1189745B1 (fr)
JP (1) JP2003503208A (fr)
CN (1) CN1455712A (fr)
AT (1) ATE233176T1 (fr)
AU (1) AU6151000A (fr)
DE (2) DE19929163C1 (fr)
WO (1) WO2001000396A2 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005023C2 (de) * 2000-02-04 2002-11-21 Feintool Internat Holding Ag L Feinschneidpresse
DE102004006126B4 (de) * 2004-02-07 2006-12-28 Horst Baltschun Presse mit verriegeltem Stößel
CN100382912C (zh) * 2004-03-26 2008-04-23 鸿富锦精密工业（深圳）有限公司 板金冲裁工艺
JP4899864B2 (ja) 2004-04-09 2012-03-21 トヨタ紡織株式会社 せん断加工装置
DE102004049149A1 (de) * 2004-10-07 2006-04-13 Feintool International Management Ag Verfahren und Vorrichtung zum Herstellen und/oder Bearbeitung von Teilen
DK2042249T3 (da) * 2007-09-26 2010-06-21 Feintool Ip Ag Fremgangsmåde og indretning til fremstilling af stanseemner med næsten glat og forstørret funktionel overflade
JP2011045899A (ja) * 2009-08-26 2011-03-10 Showa Seiko Kk 精密塑性加工方法及び精密塑性加工装置
ES2372377B2 (es) 2010-06-25 2012-10-25 Fineblanking Press Systems, S.L. Prensa de estampación.
CN101890450A (zh) * 2010-06-30 2010-11-24 上海理工大学 数控充液拉深液压机
CN102107242A (zh) * 2010-12-07 2011-06-29 苏州和林精密科技有限公司 一种物料防脱落式冲料设备
EP2608299B1 (fr) * 2011-12-22 2014-04-09 Feintool Intellectual Property AG Dispositif et procédé de fabrication de plaques bipolaires métalliques
DE102013015180A1 (de) * 2013-09-11 2015-03-12 Webo Werkzeugbau Oberschwaben Gmbh Verfahren und Vorrichtung zum Präzisionsschneiden von Werkstücken in einer Presse
US10016803B2 (en) * 2014-05-09 2018-07-10 Honda Motor Co., Ltd. Blanking die and method of blanking sheet metal therewith
CN104722633B (zh) * 2015-03-16 2017-05-31 天津太平洋超高压设备有限公司 浅波纹金属板片压冲式液压机
DE102015016102A1 (de) * 2015-12-11 2017-06-14 Schuler Pressen Gmbh Feinschneidpresse
CN107127821A (zh) * 2017-05-26 2017-09-05 新昌县奇鹏自动化设备有限公司 一种液压控制的双模式打孔机
CN109366549A (zh) * 2018-10-18 2019-02-22 湖州锐舰机械科技有限公司 一种汽车密封条加工装置
EP3736061A1 (fr) * 2019-05-06 2020-11-11 Lapmaster Wolters GmbH Système de découpage fin et son procédé de fonctionnement
US11506559B2 (en) * 2020-12-28 2022-11-22 Metal Industries Research&Development Centre Service life testing device for pressure sensor and testing method using same

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US2092092A (en) * 1932-12-01 1937-09-07 Sinclair Harold Power press tool or the like
US3570343A (en) * 1968-10-18 1971-03-16 Dro Systems Inc Di Structure for fine blanking
CH491695A (de) * 1968-11-21 1970-06-15 Aida Tekkosho Kk Feinschnittpresse
US3673908A (en) * 1971-01-22 1972-07-04 Intern Fineblanking Corp Quick-change tooling for fineblanking presses
CH551812A (de) * 1972-03-03 1974-07-31 Hydrel Ag Feinstanzpresse.
JPS5310309B2 (fr) * 1972-03-06 1978-04-12
US3827328A (en) * 1972-12-26 1974-08-06 Greenerd Press & Machine Co In Control system for hydraulic presses
AU467285B2 (en) * 1973-05-10 1975-11-10 Hydrel Ag Precision stamping press
DE2739340A1 (de) * 1977-09-01 1979-03-15 Smg Sueddeutsche Maschinenbau Hydraulisch angetriebene presse
JPS5945450B2 (ja) * 1981-04-20 1984-11-06 猛 大島 汎用プレス機によるフアインブランキング加工装置
JPS60244500A (ja) * 1984-05-18 1985-12-04 Aida Eng Ltd 騒音及び振動を抑制する液圧プレス
CH669748A5 (fr) * 1984-11-28 1989-04-14 Feintool Int Holding
NL8902274A (nl) * 1989-09-12 1991-04-02 Brouwer & Co Machine Ponsmachine.
JP3319786B2 (ja) * 1992-09-02 2002-09-03 株式会社小松製作所 プレスのブレークスルー緩衝装置およびその制御方法
DE4338197C1 (de) * 1993-11-09 1995-01-19 Schmidt Maschinenbau Gmbh Schnittwerkzeug
JP2548508B2 (ja) * 1993-11-17 1996-10-30 日清紡績株式会社 液圧プレス装置
FI100648B (fi) * 1995-12-14 1998-01-30 Balaxman Oy Levytyökeskus
US5749279A (en) * 1996-03-20 1998-05-12 General Motors Corporation Hydraulic punch actuator with centering apparatus
DE19642635A1 (de) * 1996-03-28 1997-10-02 Horst Baltschun Feinschneidpresse mit hydraulisch gekoppeltem Ringzacken- und Gegenhalterzylinder

Also Published As

Publication number Publication date
JP2003503208A (ja) 2003-01-28
ATE233176T1 (de) 2003-03-15
WO2001000396A2 (fr) 2001-01-04
AU6151000A (en) 2001-01-31
CN1455712A (zh) 2003-11-12
EP1189745A2 (fr) 2002-03-27
WO2001000396A3 (fr) 2001-05-31
DE19929163C1 (de) 2001-01-18
US7806031B1 (en) 2010-10-05
DE50001335D1 (de) 2003-04-03

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