EP0165518B1 - Presse à forger de type souterrain - Google Patents

Presse à forger de type souterrain Download PDF

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Publication number
EP0165518B1
EP0165518B1 EP85106704A EP85106704A EP0165518B1 EP 0165518 B1 EP0165518 B1 EP 0165518B1 EP 85106704 A EP85106704 A EP 85106704A EP 85106704 A EP85106704 A EP 85106704A EP 0165518 B1 EP0165518 B1 EP 0165518B1
Authority
EP
European Patent Office
Prior art keywords
crosshead
guide shaft
travelling
guide
cylinder
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
EP85106704A
Other languages
German (de)
English (en)
Other versions
EP0165518A3 (en
EP0165518A2 (fr
Inventor
Hans Albert Schubert
Klaus Schulze
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.)
SMS Hasenclever Maschinenfabrik GmbH
Original Assignee
SMS Hasenclever Maschinenfabrik GmbH
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 SMS Hasenclever Maschinenfabrik GmbH filed Critical SMS Hasenclever Maschinenfabrik GmbH
Priority to AT85106704T priority Critical patent/ATE45111T1/de
Publication of EP0165518A2 publication Critical patent/EP0165518A2/fr
Publication of EP0165518A3 publication Critical patent/EP0165518A3/de
Application granted granted Critical
Publication of EP0165518B1 publication Critical patent/EP0165518B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B21J9/02—Special design or construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/04—Frames; Guides

Definitions

  • the invention relates to an underfloor forging press with a moving frame, according to the preamble of claim 1.
  • At least one piston-cylinder unit is provided between the table spar and the lower running spar, while at least one further piston-cylinder unit is arranged to act between the table spar and the upper running spar.
  • the table bar In order to relieve the columns of such forging presses from the bending stresses caused by eccentric forging resistance, it is known to provide the table bar on its underside with a guide shaft on which the lower running bar is guided, the guides in the lower running bar applying the moment from the eccentric forging resistance derive the leadership (FR-1 254 198; Ernst Müller “Hydraulic presses and pressurized fluid systems” first volume “Schmiedepressen”, third edition, Springer-Verlag, 1962, pages 33, 34, Fig. 29; magazine “Stahl und Eisen", 84 . Streetg., 1964, Issue 15, Pages 913 - 919, Pictures 6 - 8).
  • the further development is characterized by the departure from a central guide shaft and instead the use of guides connected to the table spar for the columns of the running frame, with a cylinder which is connected to the table spar and is open at the bottom and which is open towards the bottom leads lower piston acting working piston.
  • the guides are either arranged directly in the table spar (US Pat. No. 3,397,568), which requires a correspondingly large table spar, or the lower and possibly also the upper guides are arranged on the cylinder connected to the table spar (DE-B- 1 301 298; DE-A-527 226; DE-A-1 552 826).
  • the running frame is to be dimensioned so that it embraces the cylinder with the working piston with the lower running beam, so that correspondingly long columns are required to connect the lower and upper running beam. Due to the length of the columns themselves and their expansion behavior under load, a moving frame of large dimensions and moving mass results.
  • the aim of the invention is to keep the construction costs of forging presses under the floor with a running frame low in that the dimensions and thus the mass of the running frame are kept low, the running frame guide being to be separated from the guide of the working piston in the cylinder.
  • This object is achieved in that in a forging press in the underfloor design with a running frame and a cylinder arranged under the table spar and connected to the table spar, this cylinder is designed as a guide shaft for the lower shaft so that the lower shaft is guided on the guide shaft and that Working piston is supported in the cylinder bore of the cylinder forming the guide shaft by means of a pressure stilt arranged between ball joints and a bridge piece to the lower runner relative to the latter.
  • the design of the cylinder for the working piston as a guide shaft for the lower running spar results in short columns for connecting the upper and lower running spars of the running frame and for the bridge piece provided for supporting the working piston, there is a low load, which enables space and weight-saving training, the pressure stalk provided between the bridge piece and the working piston arranged between ball joints ensures that the working piston is guided in the cylinder independently of the running frame guide.
  • two guides can be arranged along the guide shaft at a distance to accommodate the moment resulting from the eccentric forging resistance, the length of the guide shaft plus the measure determined by the distance and the length of the guides has to correspond to the maximum press stroke dimension.
  • the running frame can be guided by means of only one guide between the lower running bar and the guide shaft on this, if further guides between the, in accordance with the publication in the magazine "MPT, Metallurgical Plant on Technology"
  • the table spar and the columns connecting the spars are provided, the length of the guide shaft corresponding to the length of the guide plus the maximum press stroke dimension.
  • the guides can be designed as round, flat or roller guides with corresponding guide means, the guide means being able to be fastened to the guide shaft or in the lower running beam.
  • the forging press shown in Fig. 1 consists of a table spar 1, which is anchored in the foundation, also not shown, via a base plate, not shown.
  • a moving frame which consists of an upper running beam 2, a lower running beam 3 and the columns 4 connecting them, is movable in the vertical direction opposite the table beam 1.
  • each column 4 is composed of an anchor 4a transmitting the tensile force and a sleeve 4b surrounding the anchor 4a.
  • the sleeves 4b are inserted in bores 2b in the upper spar 2 and 3b in the lower spar 3 with a slight tension and thus connect the two spars 2 and 3 to a torsion-resistant moving frame, while the anchors 4a the offset smaller holes 2a and 3a in the upper spar 2 and pass through the lower spar 3 and are preloaded against the sleeves 4b by threaded nuts 4d placed on threaded shafts 4c at both ends of the armatures 4a and transmit the pressing force during operation.
  • the lower saddle 5a is attached to the table spar 1 and the upper saddle 5b is attached to the upper spar 2.
  • piston-cylinder units are arranged for the press retraction, each consisting of a cylinder 6a and a plunger 6b.
  • Each cylinder 6a is supported on the table beam 1 by means of a pressure pan 6c inserted into the table beam 1, while each plunger 6b is held by a ball head 6d by a ball sleeve 6e fastened to the upper running beam 2.
  • 6f denotes a protective tube for each plunger 6b.
  • Another protective tube 7 serves to protect the columns and is attached to the table beam 1 above the through holes 1 b for the columns 4.
  • the forging presses shown in Fig. 2 and 3 correspond to the forging presses shown in Fig. 1 in the details described so far, which is why the corresponding components are given the same reference numerals, so that a repetition of the description is unnecessary.
  • a guide shaft 11 is connected to the table beam 1, which is provided with a cylinder bore 12, that is to say it is hollow.
  • a guide bushing 12a in the cylinder bore 12 guides a plunger 14 which plunges into the cylinder bore 12 and which is supported on the barrel member 3 by means of a plunger 15 and a bridge piece 16 which closes the lower barrel member 3 downward.
  • a gland 12b with a gland packing 12c is provided to seal the plunger 14 in the cylinder bore 12.
  • the plunger 15 is provided with spherical recesses on both ends and is supported on the one hand to the plunger 14 and on the other hand to the bridge piece 16 of the lower runner 3 via spherical pressure pieces 15a and 15b.
  • the pressure medium is supplied to the cylinder bore 12 via a feed line 17.
  • guide shaft 11 On the outside of the guide shaft 11 are guide bushes 18a and 18b and between them a spacer bushing 18c, which are held in the axial direction by a pressure ring 18d.
  • the guide shaft 11 with its guide bushings 18a and 18b guides the lower barrel 3 lined with a bushing 19 and also takes up the moment resulting from an eccentric forging resistance via the guide bushings 18a and 18b.
  • a guide shaft 21 which is shorter than the guide shaft 11 is connected to the table spar 1 and is formed with a cylinder bore 22, that is to say also hollow.
  • a guide bush 22a in the cylinder bore 22 here also guides a plunger 24 which plunges into the cylinder bore 22 and is sealed off from the cylinder bore 22 by a gland 22b and a gland packing 22c.
  • a bridge piece 26 closing the barrel 23 downward and a pushrod 25 with spherical cutouts at both ends are provided between spherical pressure pieces 25a and 25b.
  • a guide 28 is on the outside on the relatively short guide shaft 21 at its lower end provided and fixed by the retaining ring 28a.
  • the guide 28 consists (see also FIG. 5) of an inner ring 28b with a spherical outer surface and two interconnected outer rings 28c which enclose the inner ring 28b with a corresponding spherical inner surface. Inner ring 28b and outer rings 28c together thus form a ball joint bushing.
  • the lower barrel 23 lined with a bushing 29 finds a first guide on the guide shaft 21 or the guide 28 at the end of the guide shaft 21, while the second guide takes place via the columns 4 of the running frame, for which purpose in the embodiment according to FIG Table spar 1 ball joint bushings 20 arranged and held by the protective tubes 7.
  • the moment resulting from an eccentric forging resistance is thus absorbed by the guides 28 and ball joint bushings 20, whereby the sleeves 4b of the columns 4 are subjected to a bending stress, but the overall height of the forging press is lower than that of the exemplary embodiment according to FIG. 1.
  • the embodiment according to FIG. 3 corresponds essentially to the embodiment according to FIG. 2.
  • the guide shaft 31, which is also kept relatively short, is machined on its outer diameter in such a way that it has a ball joint bushing 39 which is inserted into the bore of the lower spar 33 and held in this , serves as a guide.
  • the runner 33 is given a second guide by the ball joint bushes 30 arranged in the table spar 1 via the sleeves 4b of the columns 4 of the running frame.
  • the advantage of low structural complexity of this embodiment is that the distance between the guides 39 and 30 changes during the press stroke.
  • FIG. 5 shows - shown on a modification of the forging press according to Fig. 2 how this can be counteracted.
  • the plunger 24 is provided at its lower end with a recess 51, into which ring sectors 52 are inserted, which carry a pressure ring 53.
  • pendulum anchors 54 are arranged between this pressure ring 53 and the bridge piece 26 of the lower spar 23.
  • each pendulum anchor 54 and a retaining cap 56 which is fastened to the bridge piece 26 a spring assembly 57 is enclosed, which is tensioned by a nut 58.
  • the tension of the spring assemblies 57 is transmitted to the pressure ring 53 by the nuts 58 via washers 59, 60 and thus holds the working piston 24 via the pressure stilts 25 and the pressure pieces 25a and 25b in contact with the bridge piece 26 of the lower spar 23.
  • the working piston 24 retains so its mobility to be able to adjust itself in the cylinder bore 22 or the guide bush 22a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)
  • External Artificial Organs (AREA)

Claims (8)

1. Presse à forge du type en fosse et comprenant inn cadre mobile, composée d'une traverse de table (1), d'un cadre mobile composé d'une traverse mobile supérieure (2) et d'une traverse mobile inférieure (3, 23, 33) ainsi que de colonnes (4) qui assemblent ces traverses, un cylindre agencé au-dessous de la traverse de table (1), solidaire de cette traverse de table (1), et présentant inn alésage de cylindre (12, 22), des guides portés par le cylindre pour guider le cadre mobile, un piston de travail (14, 24), agissant sur le cadre mobile, logé dans l'alésage de cylindre (12, 22) du cylindre, et des unités pistons (plongeurs)-cylindres de retour, interposés entre la traverse de table (1) et la traverse mobile supérieure (2), caractérisée en ce que le cylindre solidaire de la traverse de table (1) est réalisé sous la forme d'un fût de guidage (11, 21, 31) servant à guider la traverse mobile inférieure (3, 23, 33) de telle manière que la traverse mobile inférieure (3, 23, 33) soit guidée le long du fût de guidage et en ce que le piston de travail (14, 24, 34) logé dans l'alésage de cylindre (12, 22) du cylindre formant le fût de guidage (11, 21, 31) est appuyé sur la traverse mobile inférieure (3, 23, 33) par l'intermédiare d'un poinçon de pression (15, 25, 35) interposé entre des articulations à rotule (grains de pression 15a, 15b, 25a, 25b) et d'un pont (16, 26) appartenant la traverse mobile inférieure.
2. Presse à forger selon la revendication 1, caractérisé en ce que, le long dun fût de guidage (11), sont disposés deux guides (18a, 18b) à un certain écartement mutuel pour absorber le couple qui résulte de la résistance de forgeage décentrée, la longueur du fût de guides (11) correspondant à la cote définie par la distance d'écartement et la longueur des guides (18a, 18b) additionnée de la longueur de la course maximale de la presse.
3. Presse à forger selon la revendication 1, caractérisée en ce que le cadre mobile est guidé au moyen d'un guide (28, 39) placé entre la traverse mobile inférieure (23, 33) et le fût de guidage (21, 31) et au moyen d'autres guides (20, 30) placés entre la traverse de table (1) et les colonnes (4) qui relient les traverses mobiles (23, 33), la longueur dun fût de guidage (21, 31) correspondant à la longueur dun guide (28, 39) prévue sur le fût de guidage (21, 31) additionnée de la longueur maximale de la course de la presse.
4. Presse à forger selon la revendication 2 ou 3, caractérisé en ce que les ou le moyen(s) de guidage (18a, 18b, 28) interposé(s) entre la traverse mobile inférieure (3, 23) et le fût de guidage sont ou est fixé(s) au fût de guidage (11, 21), et la traverse mobile inférieure (3, 23) est mobile par rapport aux moyens de guidage (18a, 18b) ou au moyen de guidage (28).
5. Presse à forger selon la revendication 4, caractérisé en ce que la traverse mobile inférieure est revêtue d'une douille de guidage (19, 29) d'une longueur qui correspond la longueur dun fût de guidage (11, 21), dans l'alésage de laquelle les ou le moyen(s) de guidage (18a, 18b, 28) glisse(nt).
6. Presse à forger selon la revendication 2 ou 3, caractérisé en ce que les ou le moyen(s) de guidage (39) entre la traverse mobile inférieure (33) le fût de guidage (31) sont ou est fixé(s) dans la traverse inférieure (31) et les ou le moyen(s) de guidage (39) sont ou est mobile(s) le long dun fût de guidage (31).
7. Presse à forger selon une des revendications 1 à 6, caractérisée en ce que le piston de travail (24) qui prend appui sur la traverse mobile inférieure (23) par l'interméiaire din poinçon de pression (25) du pont (26) appartenant à la traverse mobile inférieure (23) est serré contre le pont (26) avec possibilite de débattement élastique.
8. Presse à forger selon la revendication 7, caractérisé en ce que le piston de travail (24) dont l'extrémité inférieure est de configuration creuse, pour recevoir le poinçon de pression (25) et un grain de pression (25a) de configuration sphérique, est relié une bague de pression (53) au droit de cette extrémité inférieure, et, entre cette baque et le pont (26) appartenant à la traverse mobile inférieure (23), sont disposés des tirants oscillants (54), avec interposition de ressorts de compression (57), le poinçon de pression (25) prenant appui sur un grain de pression sphérique (25b) prévu dans le pont (26), contre la pression des ressorts (57).
EP85106704A 1984-06-19 1985-05-31 Presse à forger de type souterrain Expired EP0165518B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106704T ATE45111T1 (de) 1984-06-19 1985-05-31 Schmiedepresse in unterflurbauart.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3422644 1984-06-19
DE19843422644 DE3422644A1 (de) 1984-06-19 1984-06-19 Schmiedepresse in unterflurbauart

Publications (3)

Publication Number Publication Date
EP0165518A2 EP0165518A2 (fr) 1985-12-27
EP0165518A3 EP0165518A3 (en) 1986-09-17
EP0165518B1 true EP0165518B1 (fr) 1989-08-02

Family

ID=6238668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106704A Expired EP0165518B1 (fr) 1984-06-19 1985-05-31 Presse à forger de type souterrain

Country Status (5)

Country Link
US (1) US4607518A (fr)
EP (1) EP0165518B1 (fr)
JP (1) JPS6114038A (fr)
AT (1) ATE45111T1 (fr)
DE (2) DE3422644A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360875B1 (fr) * 1988-09-02 1991-05-29 Gräbener Pressensysteme GmbH & Co. KG Machine de formage, notamment presse mécanique
JP3054152B2 (ja) * 1988-10-17 2000-06-19 大豊建設株式会社 作業台船
US4977774A (en) * 1988-12-12 1990-12-18 Kabushiki Kaisha Kobe Seiko Sho Press device
EP2008799A1 (fr) * 2007-06-28 2008-12-31 Bruderer Ag Presse à découper
FR2951990B1 (fr) * 2009-10-30 2012-02-03 Mecan Outil Ensemble porte-outil comprenant une presse pneumatique
KR102572362B1 (ko) * 2021-12-06 2023-08-30 가톨릭대학교 산학협력단 난청환자 재활교육용 챗봇 제공 방법 및 그 시스템

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1254198A (fr) * 1960-04-13 1961-02-17 Hydraulik Gmbh Presse de forge hydraulique en fosse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893023A (en) * 1956-12-03 1959-07-07 Crawley Book Machinery Inc Single station book pressing and creasing machine
DE1941566U (de) * 1962-01-19 1966-06-30 Schloemann Ag Unterflur-saeulenschmiedepresse.
DE1301298B (de) * 1965-03-13 1969-08-21 Siempelkamp Eugen Freiform-Schmiedepresse mit Unterflurantrieb
DE1527226A1 (de) * 1965-06-24 1969-06-19 Eugen Siempelkamp Freiform-Schmiedepresse
GB1157827A (en) * 1965-08-25 1969-07-09 Sack Gmbh Maschf Hydraulic Forging Press
GB1152237A (en) * 1965-10-28 1969-05-14 Davy & United Eng Co Ltd Forging Press
US3408849A (en) * 1965-11-17 1968-11-05 Hydraulik Gmbh Hydraulic forging press
DE2852303A1 (de) * 1978-12-02 1980-06-04 Schloemann Siemag Ag Schmiedepresse, insbesondere freiform- schmiedepresse, in unterflurbauart

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1254198A (fr) * 1960-04-13 1961-02-17 Hydraulik Gmbh Presse de forge hydraulique en fosse

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"MPT, Metallurgical Plant and Technology",Vol2,1979,Seiten 3-10 Firmenschrift P1/2110,Schloemann-Siemag *
Müller, Ernst, "Hydraulische Pressen und Druckflüssigkeitsanlagen", Erster Band,"Schmiedepressen",Dritte Auflage, 1962, Seite 32-34, 58 und 59. *
Sonderabdruck aus "Stahl und Eisen", Heft 15,84,Jahrgang 64, Seite 913-919 *

Also Published As

Publication number Publication date
JPS6114038A (ja) 1986-01-22
US4607518A (en) 1986-08-26
EP0165518A3 (en) 1986-09-17
US4607518B1 (fr) 1989-10-24
DE3571945D1 (en) 1989-09-07
DE3422644A1 (de) 1985-12-19
ATE45111T1 (de) 1989-08-15
EP0165518A2 (fr) 1985-12-27
JPH0343927B2 (fr) 1991-07-04

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