WO1987002916A1 - Organe d'appui pour une presse a decouper - Google Patents

Organe d'appui pour une presse a decouper Download PDF

Info

Publication number
WO1987002916A1
WO1987002916A1 PCT/AT1986/000071 AT8600071W WO8702916A1 WO 1987002916 A1 WO1987002916 A1 WO 1987002916A1 AT 8600071 W AT8600071 W AT 8600071W WO 8702916 A1 WO8702916 A1 WO 8702916A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic cylinder
hydraulic
counter
press
piston
Prior art date
Application number
PCT/AT1986/000071
Other languages
German (de)
English (en)
Inventor
Peter Wallisch
Original Assignee
Aew Automaten, Elektrogeräte-, Werkzeugbau Ges.M.B
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3548405&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1987002916(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aew Automaten, Elektrogeräte-, Werkzeugbau Ges.M.B filed Critical Aew Automaten, Elektrogeräte-, Werkzeugbau Ges.M.B
Priority to DE8686906703T priority Critical patent/DE3666366D1/de
Publication of WO1987002916A1 publication Critical patent/WO1987002916A1/fr

Links

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
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools

Definitions

  • the invention relates to a counter holder for a punch press consisting of an upper part and a lower part.
  • the material is clamped around the part to be punched out using a press plate on the punch press, so that the material can only flow in the cutting direction.
  • the material which is usually fed in strip form, is placed outside the cutting contour e.g. held by a ring spike, and supported within the cutting contour by the counter-holder serving as an ejector.
  • the cutting gap between the press ram and the cutting plate having the cutting contour is only a few hundredths of a millimeter and the cutting speed is relatively low.
  • Mechanical and hydraulic precision punching presses with a fixed and with a movable punch are known.
  • the press upper part containing the punch and the press lower part carrying the cutting plate are generally connected to one another by guide columns.
  • the counter-holding force is applied in the hydraulic press, for example by means of a hydraulic piston.
  • the main disadvantage of this design is that pumps and corresponding controls are required to apply the hydraulic counter-holding force, which are integrated in the fine-punch presses designed as special presses. The design effort associated with such presses is significant and the presses are therefore relatively expensive.
  • the invention aims to provide a counter-holder, which allows fine punching operations to be carried out without great design effort, etc. also with common punch presses.
  • the invention relates to a counterholder for a punch press for punchable metals consisting of an upper part and a lower part, with a hydraulic cylinder exerting the counterforce;
  • this counterholder is characterized in that the hydraulic cylinder is fastened to an annular body which can be inserted into the lower part of the punch press is which is penetrated by the hydraulic piston connected to a counter-holder part and forms a stop for the upper end position of the hydraulic piston, the hydraulic cylinder having a fluid inlet with a solenoid valve and a fluid outlet with a check valve, which via a common fluid line to a pressure vessel and to a Pump, preferably a hand pump, can be connected to preset the counter-holding force.
  • the counterholder according to the invention is installed in a stamping press of a conventional type.
  • the punch press essentially consists of a movable upper part A and a fixed lower part B, the lower part B having a table 1 which carries a holder 2 for a cutting plate 3.
  • the cutting plate 3 contains an opening with the contour K of the part to be punched out and a counter-holder part 4 arranged in this opening.
  • the upper part A is formed in two parts and is guided by means of columns 5 extending away from the holder 2.
  • the upper part A comprises a punch 6 and a pressing plate 7 surrounding it and movable relative to the punch by interposing rubber springs G with a workpiece holder 8.
  • the device according to the invention is arranged in the table 1 below the holder 2 and held by means of an annular body 9.
  • a plate 10 On this ring body 9, a plate 10 is attached, which carries a hydraulic cylinder 11.
  • a piston 12 protruding through the plate 10 into the hydraulic cylinder 11 is fastened by means of a further plate 13 to the supports 14 for the counter-holder part 4 passing through the holder 2, the ring body 9 forming an upper stop 9 'for the piston 12.
  • the hydraulic cylinder 11 has an inlet 15 with a solenoid valve 16 designed as a slide valve and an outlet 17 with a check valve 18.
  • the inlet and the outlet are connected to a fluid line 19, to which one Hand pump 20 and a pressure vessel 21 are connected.
  • the device shown works as follows: With the help of the hand pump 20, a predetermined holding force is set in the pressure vessel 21, which depends on the thickness and type of the material to be punched.
  • the workpiece (lead frame) S is clamped between the cutting plate 3 and the pressing plate 7, an annular spike 7 'provided on the pressing plate 7 penetrating into the material outside the cutting contour K. This holds the material strip S and prevents the material from flowing in a direction other than the cutting direction.
  • the punch 6 begins to cut into the material and the counter-holding part 4 counteracts the pressure on the piston 12 previously set by means of the hand pump 20.
  • the counter-holder part 4 and thus the piston 12 are pushed back in the cylinder 11 and the hydraulic medium is pressed into the pressure container 21 via the check valve 18.
  • the press opens, the check valve 18 blocking the backflow of the hydraulic medium into the cylinder 11, so that the counter-holding part 4 and the piston 12 maintain their lower end position.
  • the solenoid valve 16 is e.g. opened via a cam (not shown) on the press, so that the hydraulic medium flows into the cylinder 11 under the preset pressure.
  • the piston 12 together with the counter-holder part 4 are moved upward and the stamped part is ejected with the counter-holder serving as an ejector.
  • a major advantage of the invention is that the entire unit consisting of ring body 9, hydraulic cylinder 11 together with valves 16, 18, fluid line 19, pressure vessel 21 and hand pump 20 is installed as a retrofit insert in a conventional punch press, which is not specifically designed as a fine punch press can, wherein the ring body 9 acts as an adapter or can be designed according to the dimensions of the respective press.
  • the embodiment shown can be part of the general inventive idea can be modified in various ways.
  • a differently operated pump can also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'organe d'appui est destiné à une presse à découper des métaux, comportant une partie supérieure et une partie inférieure et munie d'un vérin hydraulique (11) engendrant une force d'appui. Le vérin est monté sur un corps annulaire (9) qui est disposé dans la partie inférieure (B) de la presse, et est traversé par le piston (12, 13) du vérin supportant un contre-poinçon (4) d'appui et qui constitue une butée (9') de fin de course supérieure du piston. Le vérin (11) présente un orifice d'admission (15) muni d'une vanne magnétique (16) et un orifice de sortie (17) muni d'une soupape de non-retour (18). La vanne et la soupape sont reliées par une conduite commune (19) de fluide à un réservoir de pression (21) et à une pompe (20) de réglage de la force d'appui.
PCT/AT1986/000071 1985-11-13 1986-11-04 Organe d'appui pour une presse a decouper WO1987002916A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8686906703T DE3666366D1 (en) 1985-11-13 1986-11-04 Support system for blanking press

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT329985A AT384186B (de) 1985-11-13 1985-11-13 Gegenhalter fuer eine stanzpresse
ATA3299/85 1985-11-13

Publications (1)

Publication Number Publication Date
WO1987002916A1 true WO1987002916A1 (fr) 1987-05-21

Family

ID=3548405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1986/000071 WO1987002916A1 (fr) 1985-11-13 1986-11-04 Organe d'appui pour une presse a decouper

Country Status (4)

Country Link
EP (1) EP0245371B2 (fr)
AT (1) AT384186B (fr)
DE (1) DE3666366D1 (fr)
WO (1) WO1987002916A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000053357A1 (fr) * 1999-03-09 2000-09-14 Dynacraft Industries Sdn. Bdh. Outil d'estampage de precision
US20150068375A1 (en) * 2013-09-11 2015-03-12 Webo Werkzeugbau Oberschwaben Gmbh Method and device for precision cutting of workpieces in a press
CN108748308A (zh) * 2018-06-20 2018-11-06 南京汇龙橡胶制品有限公司 一种橡胶制品边料处理的装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015106859B4 (de) * 2015-05-04 2018-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Scherschneiden hochfester Werkstoffe und Schneidwerkzeuganordnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869526A (en) * 1957-04-30 1961-05-31 Almatic A G Method of and device for fine stamping
US3211034A (en) * 1959-09-02 1965-10-12 Kienzle Apparate Gmbh Die arrangement
DE1552049A1 (de) * 1966-01-28 1969-12-18 Philips Patentverwaltung Vorrichtung fuer Pressen zum Auswerfen von Stanz-Teilen
US3570343A (en) * 1968-10-18 1971-03-16 Dro Systems Inc Di Structure for fine blanking
DE1805984A1 (de) * 1968-10-30 1971-04-01 Aida Tekkosho Kk Schnittpresse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865526A (ja) † 1981-10-15 1983-04-19 Amada Co Ltd プレス機械
CH669748A5 (fr) † 1984-11-28 1989-04-14 Feintool Int Holding

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB869526A (en) * 1957-04-30 1961-05-31 Almatic A G Method of and device for fine stamping
US3211034A (en) * 1959-09-02 1965-10-12 Kienzle Apparate Gmbh Die arrangement
DE1552049A1 (de) * 1966-01-28 1969-12-18 Philips Patentverwaltung Vorrichtung fuer Pressen zum Auswerfen von Stanz-Teilen
US3570343A (en) * 1968-10-18 1971-03-16 Dro Systems Inc Di Structure for fine blanking
DE1805984A1 (de) * 1968-10-30 1971-04-01 Aida Tekkosho Kk Schnittpresse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000053357A1 (fr) * 1999-03-09 2000-09-14 Dynacraft Industries Sdn. Bdh. Outil d'estampage de precision
US20150068375A1 (en) * 2013-09-11 2015-03-12 Webo Werkzeugbau Oberschwaben Gmbh Method and device for precision cutting of workpieces in a press
DE102013015180A1 (de) * 2013-09-11 2015-03-12 Webo Werkzeugbau Oberschwaben Gmbh Verfahren und Vorrichtung zum Präzisionsschneiden von Werkstücken in einer Presse
EP2848329A1 (fr) * 2013-09-11 2015-03-18 WEBO Werkzeugbau Oberschwaben GmbH Procédé et dispositif de coupe de précision de pièces à usiner dans une presse
JP2015054351A (ja) * 2013-09-11 2015-03-23 ヴェボ ヴェルクゼウクバウ オベルシュヴァベン ゲーエムベーハーＷＥＢＯ Ｗｅｒｋｚｅｕｇｂａｕ Ｏｂｅｒｓｃｈｗａｂｅｎ ＧｍｂＨ プレス機での被加工物の精密切断のための方法及び装置
US9919353B2 (en) 2013-09-11 2018-03-20 Webo Werkzeugbau Oberschwaben Gmbh Method and device for precision cutting of workpieces in a press
CN108748308A (zh) * 2018-06-20 2018-11-06 南京汇龙橡胶制品有限公司 一种橡胶制品边料处理的装置

Also Published As

Publication number Publication date
EP0245371B1 (fr) 1989-10-18
DE3666366D1 (en) 1989-11-23
EP0245371B2 (fr) 1993-04-21
ATA329985A (de) 1987-03-15
EP0245371A1 (fr) 1987-11-19
AT384186B (de) 1987-10-12

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