EP0283532A1 - Presse à couper et déformer à entraînement à genouillère hydro-mécanique - Google Patents

Presse à couper et déformer à entraînement à genouillère hydro-mécanique Download PDF

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Publication number
EP0283532A1
EP0283532A1 EP87104278A EP87104278A EP0283532A1 EP 0283532 A1 EP0283532 A1 EP 0283532A1 EP 87104278 A EP87104278 A EP 87104278A EP 87104278 A EP87104278 A EP 87104278A EP 0283532 A1 EP0283532 A1 EP 0283532A1
Authority
EP
European Patent Office
Prior art keywords
press
cutting
center
articulation
plunger
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.)
Granted
Application number
EP87104278A
Other languages
German (de)
English (en)
Other versions
EP0283532B1 (fr
Inventor
Andrea Scheitza
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE8787104278T priority Critical patent/DE3770624D1/de
Priority to AT87104278T priority patent/ATE64118T1/de
Priority to EP87104278A priority patent/EP0283532B1/fr
Priority to JP63049922A priority patent/JPS63256294A/ja
Priority to US07/172,696 priority patent/US4876878A/en
Publication of EP0283532A1 publication Critical patent/EP0283532A1/fr
Application granted granted Critical
Publication of EP0283532B1 publication Critical patent/EP0283532B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/16—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • 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
    • Y10T83/8841—Tool driver movable relative to tool support
    • Y10T83/8845—Toggle links, one link pivoted to tool support

Definitions

  • the invention relates to a cutting and forming press with a hydro-mechanical articulated lever drive, in which the drive cylinder for the plunger is carried by a bridge construction arranged in the stand between lateral guides, via a bridge construction connected to these by means of threaded spindles or other height-adjustable means, and this within the area of the free space of the frame-shaped stand is adjustable.
  • German patent specification 29 25 416 introduced a toggle lever sheet metal cutting press, introduced as a differential travel press, with a pressure medium cylinder drive arranged between two toggle lever systems, which bent out with their knee joints towards the center of the press and were symmetrically the same, the pistons of which had the end of its piston rod at the connecting joint of two handlebars at the center of the press attacks, which are articulated at the other end to the toggle lever systems, the connecting joint with the help of the press ram having a guide transverse to the direction of the piston rod, the criterion of which is the support of the pressure medium cylinder drive on the press ram, wherein according to a further claim the ram is designed as a frame.
  • the US-PS 20 37 811 and the GB-PS 8 04 352 were mentioned as the relevant prior art. According to these documents, the stroke of the ram is determined by the stroke of the fixed drive cylinder fixed to the frame, and by the transmission ratio resulting from the toggle lever drive and the type of handlebar in a known manner.
  • the bridge construction forms the connection between the bearing axes arranged symmetrically to the center of the press on both sides and the center guide for the piston rod, including its limitation by the articulation point, receives the drive cylinder, that the two bearing axles with further adjoining hinge points form a rigid pivotable triangle, the hinge point directed towards the center of the tappet in each case via at least two coupled drive lever parts leading to the hinge point, which are connected to the hinge points movable in the direction of the center guide, and that the pivot points arranged on both sides in the lower area of the center guide transfer to a separate curve on both sides and the pivot points of the triangle are connected to the plunger by a continuing lever part.
  • the further provided pivotable connection of the two hinge points to a rigid pivotable triangle not only simplifies, but also supports the precision of the guidance, the center guidance being distributed in two curves with a U-shaped cross section.
  • the branching U-shaped curve guide for the articulation points of a split handlebar on both sides - especially with its rotatable roller design - increases the safety of the guide and reduces the friction losses, so that the pressure can be guided into the plunger according to the translation of the drive parts.
  • the pivot point of the triangle directed towards the center of the press leads to a more ideal, more even movement of the cylinder piston rod than the connections provided for differential travel presses.
  • the guide curve converts the unnecessary but existing force into speed in the lower area.
  • the frame-shaped press ram 2 is arranged within a free space given by the upper edge of the press table and the lower limit of the upper transverse yoke, as well as the two adjustable guides 12 on the side, and is otherwise connected to a bridge construction 5 which carries the drive cylinder 3 and which, in turn, is height-adjustable to the stand by means of spindles 4 1 is.
  • the bridge construction 5 accommodates the bearing axles 6 for the support bearings for the suspension of the pivotable triangles 10, which are additionally marked by the articulation points 8 and 9, on both sides in the area of their lower and lower limits.
  • the articulation points 8 form on both sides the connection joint for the continuing levers 13 leading to the plunger 2, while the articulation points 9 each connect the lever parts 10.1 and 10.2 in a joint point 10.3 as a bendable handlebar.
  • Item 5 is reinforced by an extension of the guide 5.1.
  • articulation points 10.2 are connected to an articulation point 10.4 which is formed at the end of the piston rod 3.1 and is arranged in a sliding manner in the center guide 7.
  • the articulation point 10.3 is driven in each case via the lever part 10.2, this being guided in a separate curve 7.1 and connected to the articulation points 9 of the triangles 10 via the lever parts 10.1.
  • the curves 7.1 have a U-shaped cross section.
  • the hinge point 10.3 is designed as an easily rotatable roller, which is generally carried by a roller bearing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP87104278A 1987-03-24 1987-03-24 Presse à couper et déformer à entraînement à genouillère hydro-mécanique Expired - Lifetime EP0283532B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE8787104278T DE3770624D1 (de) 1987-03-24 1987-03-24 Schneid- und umformpresse mit hydro-mechanischem gelenkantrieb.
AT87104278T ATE64118T1 (de) 1987-03-24 1987-03-24 Schneid- und umformpresse mit hydro-mechanischem gelenkantrieb.
EP87104278A EP0283532B1 (fr) 1987-03-24 1987-03-24 Presse à couper et déformer à entraînement à genouillère hydro-mécanique
JP63049922A JPS63256294A (ja) 1987-03-24 1988-03-04 流体・機械的トグルジョイント駆動装置
US07/172,696 US4876878A (en) 1987-03-24 1988-03-23 Press with hydro-mechanical drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87104278A EP0283532B1 (fr) 1987-03-24 1987-03-24 Presse à couper et déformer à entraînement à genouillère hydro-mécanique

Publications (2)

Publication Number Publication Date
EP0283532A1 true EP0283532A1 (fr) 1988-09-28
EP0283532B1 EP0283532B1 (fr) 1991-06-05

Family

ID=8196861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104278A Expired - Lifetime EP0283532B1 (fr) 1987-03-24 1987-03-24 Presse à couper et déformer à entraînement à genouillère hydro-mécanique

Country Status (5)

Country Link
US (1) US4876878A (fr)
EP (1) EP0283532B1 (fr)
JP (1) JPS63256294A (fr)
AT (1) ATE64118T1 (fr)
DE (1) DE3770624D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220043A1 (de) * 1992-06-22 1993-12-23 Verhoefen Ulrich Schneid- und Umformpresse mit einem oder mehreren Antriebzylindern und einem Gelenkhebelantrieb
DE4319899A1 (de) * 1993-06-16 1995-01-05 Leinhaas Umformtechnik Gmbh Gelenkhebelpresse und Verfahren zur Steuerung der Stößelbewegung
CN102442013A (zh) * 2010-12-13 2012-05-09 宁波精达成形装备股份有限公司 压力机滑块导向机构
DE102019112921A1 (de) * 2019-05-16 2020-11-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hebeltrieb

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720988C (de) * 1937-09-14 1942-05-21 Walter Eduard Kaess Vorrichtung zum Pressen, Praegen, Ziehen, Formen u. dgl. von Gegenstaenden aus Pappe, Karton, insbesondere Frucht- oder Fleischschaelchen aus Fasermaterial
DE839759C (de) * 1948-08-24 1952-05-23 Schwäbisch Gmünd Dr.-Ing. Otto May Kniehebelpresse
DE901130C (de) * 1949-12-17 1954-05-13 Otto May Dr Ing Kniehebelpresse
GB2052370A (en) * 1979-06-23 1981-01-28 Leinhaas W Machine tool with a reciprocating tool carrier
DE3517492A1 (de) * 1984-11-05 1986-05-07 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Kniehebel-blechschneidepresse, bestehend aus einem pressenstaender und einem pressenstoessel

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB804352A (en) * 1955-06-30 1958-11-12 William Frank Golding Improvements in or relating to power presses
FR1322208A (fr) * 1962-02-12 1963-03-29 Système de fermeture de presse
DE1459339A1 (de) * 1962-04-12 1968-11-28 Rheinmetall Gmbh Kniehebelpresse
US3611497A (en) * 1969-05-01 1971-10-12 Nashua Ind Machine Corp Tie-rodless double acting press
US3682029A (en) * 1970-04-13 1972-08-08 Schwabe Inc Herman Balanced and double action cutting apparatus
US3866503A (en) * 1973-08-22 1975-02-18 Schjeldahl Co G T Reciprocatory drive means for treatment of movable webs
US4160409A (en) * 1974-09-03 1979-07-10 Bruderer Ag Drive for the movable work component, such as the ram of a press, stamping machine or the like
SU683836A1 (ru) * 1976-11-26 1979-09-05 Ленинградский Институт Точной Механики И Оптики Штамп последовательного действи
DE2934286C2 (de) * 1979-08-24 1984-06-14 L. Schuler GmbH, 7320 Göppingen Mehrpunkt-Pressenantrieb
ATE8756T1 (de) * 1981-02-11 1984-08-15 L. Schuler Gmbh Pressenantrieb.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720988C (de) * 1937-09-14 1942-05-21 Walter Eduard Kaess Vorrichtung zum Pressen, Praegen, Ziehen, Formen u. dgl. von Gegenstaenden aus Pappe, Karton, insbesondere Frucht- oder Fleischschaelchen aus Fasermaterial
DE839759C (de) * 1948-08-24 1952-05-23 Schwäbisch Gmünd Dr.-Ing. Otto May Kniehebelpresse
DE901130C (de) * 1949-12-17 1954-05-13 Otto May Dr Ing Kniehebelpresse
GB2052370A (en) * 1979-06-23 1981-01-28 Leinhaas W Machine tool with a reciprocating tool carrier
DE3517492A1 (de) * 1984-11-05 1986-05-07 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Kniehebel-blechschneidepresse, bestehend aus einem pressenstaender und einem pressenstoessel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220043A1 (de) * 1992-06-22 1993-12-23 Verhoefen Ulrich Schneid- und Umformpresse mit einem oder mehreren Antriebzylindern und einem Gelenkhebelantrieb
EP0576964A1 (fr) * 1992-06-22 1994-01-05 Ulrich Verhoefen Presse à découper et à déformer avec un ou plusieurs vérins d'entraînement et à genouillère
DE4319899A1 (de) * 1993-06-16 1995-01-05 Leinhaas Umformtechnik Gmbh Gelenkhebelpresse und Verfahren zur Steuerung der Stößelbewegung
CN102442013A (zh) * 2010-12-13 2012-05-09 宁波精达成形装备股份有限公司 压力机滑块导向机构
DE102019112921A1 (de) * 2019-05-16 2020-11-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hebeltrieb
DE102019112921B4 (de) * 2019-05-16 2024-03-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Hebeltrieb

Also Published As

Publication number Publication date
US4876878A (en) 1989-10-31
ATE64118T1 (de) 1991-06-15
DE3770624D1 (de) 1991-07-11
JPS63256294A (ja) 1988-10-24
EP0283532B1 (fr) 1991-06-05

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