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EP0356564A1 - Presse mécanique à entraînement à bielle double - Google Patents

Presse mécanique à entraînement à bielle double Download PDF

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Publication number
EP0356564A1
EP0356564A1 EP88114345A EP88114345A EP0356564A1 EP 0356564 A1 EP0356564 A1 EP 0356564A1 EP 88114345 A EP88114345 A EP 88114345A EP 88114345 A EP88114345 A EP 88114345A EP 0356564 A1 EP0356564 A1 EP 0356564A1
Authority
EP
European Patent Office
Prior art keywords
press
press according
drive
clutch
housing
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
EP88114345A
Other languages
German (de)
English (en)
Other versions
EP0356564B1 (fr
Inventor
Franz Hillingrathner
Berthold Daub
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.)
Grabener Pressensysteme & Co KG GmbH
Graebener Pressensysteme GmbH and Co KG
Original Assignee
Grabener Pressensysteme & Co KG GmbH
Graebener Pressensysteme GmbH and Co KG
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 Grabener Pressensysteme & Co KG GmbH, Graebener Pressensysteme GmbH and Co KG filed Critical Grabener Pressensysteme & Co KG GmbH
Priority to EP88114345A priority Critical patent/EP0356564B1/fr
Priority to ES88114345T priority patent/ES2022965B3/es
Priority to AT88114345T priority patent/ATE64119T1/de
Priority to DE8888114345T priority patent/DE3863178D1/de
Publication of EP0356564A1 publication Critical patent/EP0356564A1/fr
Application granted granted Critical
Publication of EP0356564B1 publication Critical patent/EP0356564B1/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
    • B30B1/14—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 cams, eccentrics, or cranks
    • 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
    • B30B1/26—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 cams, eccentrics, or cranks
    • B30B1/266—Drive systems for the cam, eccentric or crank axis

Definitions

  • the invention relates to a mechanical press with a double connecting rod drive, which has a drive unit comprising a flywheel, a hydraulic clutch / brake unit provided with a clutch shaft, a planetary gear and a crankshaft.
  • a press of the type mentioned which is known from practice and is not documented in detail in writing has only a single drive unit which is attached to the side of the press and which drives the crankshaft that actuates both connecting rods.
  • the disadvantage here is the long torque path and thus the low torsional rigidity.
  • the one-sided introduction of torque and thus the different torsional stiffness at the connecting rod points are also disturbing. In addition, considerable space is required to the side.
  • the invention has for its object to develop a press of the type mentioned in terms of its drive so that it is integrated in the remaining space of the press and has particularly short torque paths and thus extreme and equilateral rigidity.
  • the solution to this problem according to the invention is that between the two connecting rods, symmetrically to the press center plane, two identical coaxial drive units, apart from their mirror symmetry, are arranged, the coupling shafts of which are combined into a single shaft at their mutually facing shaft ends, and their clutch / brake units of are fed a common central hydraulic fluid supply.
  • the invention is based on the consideration that the symmetrical introduction of torque to and between the connecting rods with compact press dimensions guarantees a synchronous and uniform application of force.
  • the two drive units are preferably housed in a common drive housing. This provides particularly good accessibility, for example for repair and maintenance purposes, if the drive housing is horizontally divided into two housing parts which are clamped together by means of tie rods. If necessary, the drive housing will expediently be formed by the press stand or housing. In the embodiment as a crank and eccentric press, it is easily possible that the z. B. provided by the stator drive housing in a cavity of the plunger. In terms of design, there are also particularly manageable conditions if the clutch / brake units have a common clutch housing which carries the flywheels.
  • the hydraulic fluid supply is provided with a non-contact, wear-free labyrinth seal in the coupling housing.
  • the arrangement in which the coupling shafts with their outer ends face in is particularly simple in terms of construction Inner end of the associated crankshaft are mounted.
  • the planet gears of the planetary gears are expediently mounted on pins which are formed on the inner cheeks of the crankshafts or are inserted into them.
  • the ring gears of the planetary gearboxes should be mounted in a fixed support ring by means of toothing in a torsionally rigid but radially movable manner.
  • the compactness can be increased if the crankshafts are supported on their two cheeks.
  • the presses shown in the figures are mechanical presses with a double connecting rod drive.
  • the double connecting rod drive is made up of two drive units 1 each builds, each of which is constructed from a flywheel 2, a hydraulic clutch / brake unit 4 provided with a clutch shaft 3, a planetary gear 5 and a crankshaft 6.
  • These two drive units 1 are arranged symmetrically to the plane of the press between the two connecting rods 7 and, apart from their mirror symmetry, are constructed identically and are arranged coaxially with one another.
  • the coupling shafts 3 are combined to form a single shaft at their mutually facing shaft ends 8.
  • the clutch / brake units 4 are fed by a common central hydraulic medium feed 9, the details of which can be seen more clearly from FIG. 7.
  • the two drive units 1 are accommodated in a common drive housing 10.
  • the flywheels 2 are driven by a drive motor via connected chain wheels and chains 22, which are guided through slots in the drive housing.
  • this drive housing 10 is horizontally divided into two housing parts which are clamped together by means of tie rods 11.
  • the drive housing 10 is formed by the press stand or housing 12.
  • the drive housing is partially arranged in a cavity of the plunger 13.
  • the clutch / brake units 4 have a common clutch housing 14 which carries the flywheels 2.
  • the hydraulic medium supply 9 is with a non-contact, wear-free labyrinth seal 23 in the coupling Housing 14 provided (see FIG. 7), ie the introduction of the hydraulic fluid into the two hydraulic clutch / brake units 4 from the clutch housing 14 into the central part of the clutch shaft 3 is carried out through the labyrinth seal 23.
  • the outer end of the clutch shafts 3 is in the inner end facing associated crankshaft 6. Otherwise, the coupling shafts 3 have teeth 15 in the area of their outer ends as sun gears of the planetary gear 5.
  • the planet gears 16 of the planetary gear 5 are mounted on pins 17 which are formed on the inner cheeks 18 of the crankshafts 6 or are inserted into them.
  • the coupling shafts 3 are also supported in these inner cheeks 18.
  • the ring gears 19 of the planetary gear 5 are torsionally rigid but radially movable in fixed support rings 20 by means of teeth.
  • the embodiment according to FIGS. 1 to 4 is a toggle press, in which the connecting rods 7 work on toggle 21, which are arranged between the frame and the plunger 13.
  • the double connecting rod drive is arranged at the bottom, in the embodiment according to FIGS. 3 and 4, however, at the top.
  • the embodiment according to FIGS. 5 and 6, on the other hand, is a crank or eccentric press in which the double connecting rod drive is arranged in a cavity of the tappet 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP88114345A 1988-09-02 1988-09-02 Presse mécanique à entraînement à bielle double Expired - Lifetime EP0356564B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP88114345A EP0356564B1 (fr) 1988-09-02 1988-09-02 Presse mécanique à entraînement à bielle double
ES88114345T ES2022965B3 (es) 1988-09-02 1988-09-02 Prensa mecanica por un accionamiento de doble biela
AT88114345T ATE64119T1 (de) 1988-09-02 1988-09-02 Mechanische presse mit einem doppelpleuelantrieb.
DE8888114345T DE3863178D1 (de) 1988-09-02 1988-09-02 Mechanische presse mit einem doppelpleuelantrieb.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114345A EP0356564B1 (fr) 1988-09-02 1988-09-02 Presse mécanique à entraînement à bielle double

Publications (2)

Publication Number Publication Date
EP0356564A1 true EP0356564A1 (fr) 1990-03-07
EP0356564B1 EP0356564B1 (fr) 1991-06-05

Family

ID=8199258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114345A Expired - Lifetime EP0356564B1 (fr) 1988-09-02 1988-09-02 Presse mécanique à entraînement à bielle double

Country Status (4)

Country Link
EP (1) EP0356564B1 (fr)
AT (1) ATE64119T1 (fr)
DE (1) DE3863178D1 (fr)
ES (1) ES2022965B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017035671A1 (fr) * 2015-09-02 2017-03-09 Bruderer Ag Presse d'emboutissage et/ou de formage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243952A (en) * 1939-04-01 1941-06-03 Rudolph W Glasner Press
US2771790A (en) * 1954-07-12 1956-11-27 Niagara Machine & Tool Works Double drive power punch press
US2878909A (en) * 1956-09-19 1959-03-24 Niagara Machine & Tool Works Power press drive mechanism
US3817139A (en) * 1973-01-29 1974-06-18 Gulf & Western Industries Press and drive mechanism therefor
FR2518453A1 (fr) * 1981-12-17 1983-06-24 Aida Eng Ltd Presse a bati en col de cygne
US4697466A (en) * 1985-04-24 1987-10-06 Aida Engineering, Ltd. Drive device for press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243952A (en) * 1939-04-01 1941-06-03 Rudolph W Glasner Press
US2771790A (en) * 1954-07-12 1956-11-27 Niagara Machine & Tool Works Double drive power punch press
US2878909A (en) * 1956-09-19 1959-03-24 Niagara Machine & Tool Works Power press drive mechanism
US3817139A (en) * 1973-01-29 1974-06-18 Gulf & Western Industries Press and drive mechanism therefor
FR2518453A1 (fr) * 1981-12-17 1983-06-24 Aida Eng Ltd Presse a bati en col de cygne
US4697466A (en) * 1985-04-24 1987-10-06 Aida Engineering, Ltd. Drive device for press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017035671A1 (fr) * 2015-09-02 2017-03-09 Bruderer Ag Presse d'emboutissage et/ou de formage

Also Published As

Publication number Publication date
DE3863178D1 (de) 1991-07-11
EP0356564B1 (fr) 1991-06-05
ES2022965B3 (es) 1991-12-16
ATE64119T1 (de) 1991-06-15

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