WO2011064054A1 - Machine de façonnage, en particulier servopresse - Google Patents

Machine de façonnage, en particulier servopresse Download PDF

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Publication number
WO2011064054A1
WO2011064054A1 PCT/EP2010/065902 EP2010065902W WO2011064054A1 WO 2011064054 A1 WO2011064054 A1 WO 2011064054A1 EP 2010065902 W EP2010065902 W EP 2010065902W WO 2011064054 A1 WO2011064054 A1 WO 2011064054A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
crankshaft
connecting rod
forming
console
Prior art date
Application number
PCT/EP2010/065902
Other languages
German (de)
English (en)
Inventor
Lothar Bauersachs
Herbert Rüger
Ernst Schardt
Original Assignee
Langenstein & Schemann 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 Langenstein & Schemann Gmbh filed Critical Langenstein & Schemann Gmbh
Publication of WO2011064054A1 publication Critical patent/WO2011064054A1/fr

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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
    • B30B1/26—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
    • B30B1/28—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 the cam, crank, or eccentric being disposed below the lower platen or table and operating to pull down the upper platen or slide

Definitions

  • the present invention relates to a forming machine.
  • DE 10 2004 009 256 B4 describes a drive system of a servo press for the movement of a ram with an eccentric or crank mechanism that can be controlled by a servo motor.
  • the drive system is arranged on a press stand, wherein the movement of the plunger preferably takes place via a toggle mechanism.
  • the eccentrics are synchronized via a transmission branch and at least one motor, in particular a servomotor, operates position-controlled.
  • a servo press with a toggle mechanism which has a servomotor-operated toggle mechanism as a ram drive, whereby both the achievement of large forming forces and the largely optional design of the path-time curve of the ram is possible.
  • At least one auxiliary drive additionally acts on the plunger in order to achieve the controllable swept stroke of the plunger on the controlled by the toggle lever achievable degree addition.
  • the auxiliary drive is preferably position-controlled or controlled and controlled by the control device which also controls the toggle lever servo drive.
  • the object of the invention is now to provide a resilient with respect to the forces occurring forming machine, in particular servo press, with a simplified structure. This object is achieved by a forming machine with the features of claim 1. Advantageous embodiments and further developments of the invention will become apparent from the dependent claims.
  • a first aspect of the invention comprises a forming machine, in particular for cold or hot forming of metallic
  • Workpieces such as metallic sheets, is provided and in particular a servo press, at least one machine table with a tool receiving area for at least one lower forming tool and at least one plunger with a tool receiving area for at least one upper forming tool.
  • the plunger is arranged above the machine table and movable relative to or relative to the machine table.
  • the plunger is at least indirectly mechanically coupled to at least two connecting rods via upper connecting rod bearings (or: in power transmission connection).
  • the connecting rods are in turn mounted in lower connecting rod bearings on at least one crankshaft rotatable about a shaft axis, which is mechanically coupled to at least one motor, in particular a servomotor.
  • crankshaft (s) of such a drive device for the plunger is or are arranged below the plunger and / or below the tool receiving region of the machine table. Furthermore, the lower connecting rod bearings of the associated connecting rod (s) are arranged on the crankshaft, in particular on an associated eccentric on the crankshaft, below the tappet and / or below the tool holder of the machine table, while the upper connecting rod bearings of this connecting rod are above the tool holder of the machine table are arranged.
  • Machine table is to be understood as terminus technicus synonymous for each lower machine part that can accommodate the lower forming tools and is located below the plunger.
  • a second aspect of the invention which can be combined with the first aspect of the invention, but also claimed alone, comprises a forming machine in addition to machine table with tool receiving area for at least one lower forming tool and plunger with tool receiving area for at least one upper Umformtechnik- tool vertically guided , movable console to which the plunger is attached by means of at least one adjusting device and with the plunger is thus mitbewegbar or moved.
  • the adjustment (s) of the plunger in the vertical direction relative to the console is adjustable or adjustable or a vertical distance between plunger and console adjustable bar, in particular for setting an operating point of the plunger stroke and / or adaptation to a desired forming height of the workpiece or Retraction of a new forming tool on the forming machine.
  • the adjusting device (s) has or have, in particular, a single-part drive for automatic adjustment.
  • a third aspect of the invention which can be combined as desired with the first aspect of the invention and the second aspect of the invention, comprises a forming machine next to machine table with tool receiving area for at least one lower forming tool and plunger with tool receiving area for at least an upper forming tool at least one compensating device for at least partially balancing the weight of the plunger and possibly the or a console, with which the plunger is connected.
  • the compensation device preferably exerts a counterbalancing force directed upward against the force of gravity on the plunger and possibly also on the or a console, which compensating force is preferred for this purpose ensures that in the connecting rod bearings or in the adjusting devices between plunger and console, the bearing gaps or gaps generally remain generally on the lower side regardless of the direction of the plunger movement up or down.
  • the balancing device is generally connected or coupled in the force path between the stator or crosshead on the one hand and the plunger and / or possibly the or a console.
  • the balancing device has at least one return element, the downward deflection of an upwardly acting restoring force opposite, in particular a resilient return element and / or at least one pneumatic return element.
  • the forming machine according to the second and third aspect of the invention is particularly intended for cold or hot forming of metallic workpieces, such as metallic sheets, and preferably a servo press.
  • the console preferably comprises two side parts and a transverse part connecting the two side parts.
  • the plunger has, is preferably arranged below the cross member and in particular between the side parts and preferably attached to the cross member.
  • the forming machine has a machine frame with one or two uprights and a crosshead, wherein vertical guides are preferably provided on the crosshead and / or on the stand (s), on which guide elements of the tappet and / or guide elements the console are guided vertically.
  • each crankshaft is rotatably mounted in or on the machine table below the tool receiving area, in particular in two inner bearings and two outer bearings.
  • at least one crankshaft can be constructed from at least two crankshaft parts, which are connected to one another via a clutch.
  • each crankshaft has an eccentric for each associated connecting rod to which a lower connecting rod end of the connecting rod is mounted eccentrically to the shaft axis of the crankshaft to form a lower connecting rod bearing, wherein the eccentric in rotation of the crankshaft about its shaft axis in a rotational movement about the shaft axis moves, during this rotational movement of the eccentric with the lower connecting rod end mounted thereon, the upper connecting rod end of the same connecting rod moves vertically up or down.
  • each crankshaft is preferably associated with two connecting rods and / or each crankshaft is driven by two motors, in particular servomotors, in particular at their shaft end regions.
  • two motors in particular servomotors
  • the lower connecting rod bearing or the eccentric on the crankshaft for the one or more connecting rods is or are preferably arranged between the coupling regions of the crankshaft for the (servo) motors.
  • the at least one (servo) motor or the two (servo) motors can drive the associated crankshaft directly, in particular at the same speed, or via a transmission gear.
  • a Torq uemotors or a segment motor as a servomotor allows the operation of the (servo) motor as a direct drive with low speeds and high torques.
  • the one or more (servo) motors below the plunger and / or below the tool receiving area of the machine table a ngeord net.
  • Kurbelwel len are preferably parallel and offset from one another angeord net.
  • the upper connecting rod bearings of these four connecting rods then preferably surround the plunger or the console in a symmetrical arrangement, lie particularly in the corner regions of the plunger or the console or the Eckpu nkte a rectangle in which the plunger or the console is in cross section.
  • two drive units each comprising two connecting rods with associated connecting rod bearings, a crankshaft and one or two associated (servo) motors, if necessary with transmission gears, are designed to be identical to one another and / or relative to one another Symmetrieebene the forming machine essentially essen mirror-symmetrically arranged.
  • the plunger and / or the console and / or the machine table and in particular also essentially the entire forming machine can be designed mirror-symmetrically with respect to a central plane of symmetry of the forming machine.
  • the symmetrical embodiments described allow efficient Ableitu ng and compensation forces occurring during operation on Gestel parts of the forming machine as the stand or in an advantageous manner.
  • at least one crankshaft and / or at least one (servo) motor can also be arranged a mechanical braking device or a safety lock, for example for holding the ram and preventing unintentional starting.
  • FIG 1 shows a forming machine according to the invention in a representation from the front, wherein components are partially cut free drawing and thus visible, FIG 2, the forming machine according to FIG 1 in a partially sectioned view of the side and
  • FIG. 3 shows the forming machine according to Figures 1 and 2 in a partially sectioned view from above
  • Figures 1 to 3 show a, in particular designed as a servo press forming machine 1, a machine table 2, one or two stand 4 with a crosshead 5 and a guided on the or the stand (s) 4 and / or crosshead 5, vertically movable Tappet 7 includes.
  • a tool holder 3 for receiving the, not shown, lower forming tools of the machine table 2 is provided.
  • a tool holder 70 for receiving, not shown, upper forming tools provided.
  • the tool holders 3 and 70 may, for example, in a conventional manner have a grid of mounting positions for positioning the tools.
  • the area between the tool holders 3 and 70 of the machine table 2 and ram 7 forms the working area 6, in which the tools and then between the tools, the workpieces are arranged (can).
  • the plunger 7 is moved down so that upper and lower forming tools or halves by means of the force applied by the ram 7 forming force, in particular pressing force, cooperate and located between the forming tools workpiece corresponding to the geometric and machinery -
  • the technical design of the tools is transformed.
  • the working direction or forming direction of the plunger 7 directed vertically downwards towards the machine table 2 is shown with an arrow marked P and is the pressing direction in a servo press.
  • On the crosshead 5 and / or the stand (s) 4 are now, preferably four, vertical guides, in particular guide rails and / or guide grooves, arranged and fixed, of which two front guides 45 and 46 shown on both sides in FIG are.
  • the plunger 7 has corresponding guide elements in particular also four guide elements, which are guided vertically on or in the guides on the or the stand (s) 4 and / or crosshead 5, in particular via intermediate rolling bearings.
  • the two front guide elements are shown, the guide element 75 guided in or on the guide 45, shown on the right, and the guide element 76 guided in or on the guide 46, shown on the left.
  • the plunger 7 is held in the preferred embodiment shown on a bracket 9, which is moved with the plunger 7 and also about, preferably also four, guide elements on the vertical guides, in particular via intermediate rolling bearings, out of which 1, the two front guide elements 95 are shown on the guide 45 and 96 on the guide 46.
  • the console 9 forms a cross-sectionally approximately U-shaped, the plunger 7 from above and from the side framing or surrounding Glasrahmen with two vertically extending side members 91 and 92, the side surrounding the plunger 7 or frame, and a two side portions 91 and 92 connecting horizontal Transverse part 93, on which the plunger 7 is attached by means of connecting elements (adjustment means) 8 hanging and which is thus arranged above the plunger 7.
  • Console 9 and plunger 7 are firmly connected to each other during the forming movement and are moved together under common linear vertical guidance in the guides, z. B. 45 and 46, on stand 4 and / or crosshead. 5
  • the plunger 7 For the forming movement of the plunger 7 relative to the machine table 2, the plunger 7 of at least two, in the illustrated embodiment four, connecting rods 11 to 14 vertically against the machine table 2 movable.
  • the connecting rods 11 to 14 are coupled to the side parts 91 and 92 of the bracket 9, preferably in their corner areas, namely at the front and back of the side part 91, the two connecting rods 11 and 14 and at the front and back of the side part 92, the connecting rods 12 and 13th
  • the four connecting rods 11 to 14 thus pull the console 9 in the forming movement down to the machine table 2 and press the console 9 in the return movement back up.
  • the console 9 presses with its cross member 93 via the connecting elements (8) in the forming movement of the plunger 7 down before him down and pulls the plunger 7 in the return movement with upward.
  • the guided console 9 takes itself as a pull frame, the tensile forces and possibly occurring tilting moments and the plunger 7 can move largely without lateral forces and torque-free in its linear guide on stand 4 and / or crosshead 5.
  • each connecting rod 11 to 14 respectively attached to the associated side part 91 and 92 of the console bolt along a bolt axis passing through the bolt through or into an opening (the upper "eye") in inserted upper end of the connecting rod I IA to 14A and rotatably mounted therein 1 and 2, the bolts 61, 62 and 64 with the associated bolt axes Bl, B2 and B4 in the associated connecting rod ends IA, 12A and 14A are shown in FIGS.
  • the two associated with a side part 91 or 92 of the bracket 9 and at its upper connecting rod ends I IA to 14A coupled thereto connecting rods 11 and 14 and 12 and 13 are at their lower connecting rod ends IIB and 14B and 12B and 13B with each other via a respective crankshaft ( or: eccentric shaft) 15 and 16 coupled.
  • the two connecting rods 11 and 14 on one, left in Figures 1 and 3, side are interconnected by a first crankshaft 15 which is rotatable about a shaft axis A, and the two connecting rods 12 and 13 on the other side are by a second crankshaft 16 connected to each other, which is rotatable about a shaft axis B.
  • the two shaft axes A and B of the crankshafts 15 and 16 are arranged parallel to one another and in particular at the same height or in the same horizontal plane.
  • crankshafts 15 and 16 have for each connecting rod 11 to 14 an associated with the crankshaft 15 or 16 co-rotating eccentric 31 to 34 with an eccentric axis which is arranged parallel to and spaced from the respective shaft axis A and B respectively.
  • 1 shows the eccentric axes E1 and E2 of the eccentric elements 31 and 32 and in FIG. 2 the eccentric axes E1 and E4 of the eccentric elements 31 and 34.
  • Each eccentric element 31 to 34 is attached to the crankshaft 15 or 16 in FIG.
  • Formed an arm or projection and comprises a pin or bolt which is inserted through an opening (the "eye") in the lower end of the connecting rod IIB to 14B of the associated connecting rod 11 to 14 and rotatably supported therein.
  • the eccentric axes, in particular El, E2 and E4 pass through the pins or bolts of the eccentric elements, in particular 31, 32 and 34.
  • the eccentric elements Upon rotation of the crankshaft 15 and 16, the eccentric elements rotate 31 to 34 and their eccentric axes, z. B.
  • El, E2 and E4 move in a circular rotational movement (eccentric movement) RB about the shaft axis A and B, wherein the diameter D of this rotation RB tion twice the distance from the eccentric axis, in particular El, E2 or E4, to the shaft axis A or B corresponds.
  • each upper connecting rod bearings for coupling the connecting rods 11 to 14 to the bracket 9 and thus to the plunger 7.
  • Die Exzenteretti, z , B. 31, 32 and 34, in particular their bolts, in turn, together with the lower connecting rod ends IIB to 14B and their openings or eyes each lower connecting rod bearings, which are for coupling the crankshaft 15 or 16 and thus the servomotors 21 to 24 to the associated connecting rod 11 to 14 are provided.
  • the upper and lower connecting rod bearings can also be designed in other known manner.
  • the maximum possible Pleuelhub is reached, which then corresponds to the full diameter D of the circle of the eccentric or rotational movement RB.
  • the ram stroke H between its TDC and UT is equal to the maximum Pleuelhub D.
  • the eccentric or rotational movement RB can only be in a direction of rotation or in a pendulum motion to the lower point UPI the rotational movement RB with periodically changing or alternately rotation.
  • crankshaft 15 rotating about the shaft axis A is driven by two synchronized servomotors 21 and 24, and the crankshaft 16 rotating about the shaft axis B is also driven by two synchronized servomotors 22 and 23, the two servomotors 21 and 24 and 22 and 23 are preferably each coupled to the crankshaft 15 or 16 in the region of the shaft ends.
  • the two servomotors per crankshaft also serve to avoid torsional moments in the crankshaft as possible or to keep small.
  • each servomotor 21 to 24 and associated crankshaft 15 or 16 a transmission gear 51 to 54 connected to translate the engine speed to the crankshaft speed, in particular a gear transmission.
  • a transmission gear 51 to 54 connected to translate the engine speed to the crankshaft speed, in particular a gear transmission.
  • it is also a direct drive of the crankshafts by the servomotors (in which case the engine speed corresponds to the crankshaft speed) without intermediate gears possible, especially when using torque motors or segment motors.
  • only one servomotor can also be provided per crankshaft.
  • the four connecting rods 11 to 14 are preferably identical to one another, in particular of the same length.
  • the two drive units which are each associated with the side parts 91 and 92 of the console and two connecting rods 11 and 14 and 12 and 13 with associated connecting rod bearings, a crankshaft 15 and 16 and two associated servomotors 21 and 24 and 22 and 23 possibly with transmissions 51 and 54 or 52 and 53 comprise, identical in construction to each other and arranged with respect to a central plane of symmetry S mirror-symmetrical.
  • the console 9 and the plunger 7 and, if necessary, stand 4 and crosshead 5 and the machine table 2 are preferably formed mirror-symmetrically to the plane of symmetry S.
  • FIG. 3 it should be noted that the sectional planes according to FIG. 1 are different on the left and on the right. In the case of the same sectional plane, the components mentioned would all be shown in mirror symmetry in FIG.
  • the servomotors 21 to 24 and the associated gear 51 to 54 are disposed on the outer longitudinal sides of the machine table 2 below the tool holder 3. Also, the crankshafts 15 and 16 and the lower rod bearings and lower portions of the connecting rods 11 to 14 are below the lower tool holder 3 of the machine table 2 and thus also provided below the plunger 7.
  • the upper connecting rod bearings of the connecting rods 11 to 14, however, are arranged above the tool holder 3 of the machine table 2, in particular at the level of the plunger 7. This achieves in an advantageous manner that seen from the machine table 2 from the above plunger 7 is pulled over the bracket 9 in the forming movement down and pressure forces are avoided.
  • the crankshaft 15 may be constructed in two or more parts in addition to a one-piece design, for example, according to FIG 2, two crankshaft parts 15A and 15B have, which are interconnected via a coupling 19.
  • an unspecified mechanical brake or locking unit may be arranged.
  • adjusting devices 8 as connecting elements to the console 9 at a distance d from the transverse part 93 of the console 9 in a predetermined position.
  • the adjustment devices 8 can indeed be manual However, they are preferably each provided with drives, for example with spindle drives or worm drives, which each comprise at least one electric drive motor, thereby making it possible to adapt the distance d and thus the vertical position of OT and UT, and also in very precise setting steps.
  • no drive element is arranged in the way of the working area 6.
  • the supply and removal of the workpieces to be machined, for example, by a handling robot, or the assembly or disassembly of forming tools can thus be done from all four sides and on all four sides.
  • the plunger 7 or alternatively the console 9 advantageously via a (only shown in FIG 1) balancer 10 with the or the uprights 4 or the crosshead 5 coupled.
  • the compensation device 10 exerts a counter to gravity directed upward compensatory force on the plunger 7 and thus also on the connected to the plunger 7 console 9 or vice versa de console 9 and thus also on the plunger 7.
  • the compensating device 10 comprises, in particular, at least one restoring element, which opposes an upwardly directed restoring force to a deflection downward, in particular a resilient restoring element.
  • the compensation device 10 comprises at least one pneumatic return element (or: a pneumatic spring), in particular a pneumatic piston, because of the possible advantageous characteristics.
  • the balancing device 10 is a tensile force or bias on the plunger 7 and the bracket 9 and thus connected in the upper connecting rod bearings connecting rods 11 to 14 exercised, which ensures in the upper and lower conrod bearings that the bearing gaps always on one side, namely, the lower side, stay and not jump back and forth in the reversal of the plunger movement from bottom to top and vice versa. In other words, the bearing clearances are kept defined on the lower side.
  • A, B shaft axis

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

Abstract

L'invention concerne une machine de façonnage, en particulier pour le façonnage à chaud ou à froid de pièces métalliques, par exemple de tôles métalliques, de préférence une servopresse, comprenant a) au moins une table de machine (2) munie d'une zone de logement d'outil (3) pour au moins un outil de façonnage inférieur et au moins un coulisseau (7) muni d'une zone de logement d'outil (70) pour au moins un outil de façonnage supérieur, b) le coulisseau (7) étant agencé au-dessus de la table de machine (2) et étant agencé de manière à pouvoir être déplacé contre la table de machine au moyen d'un dispositif d'entraînement, c) le dispositif d'entraînement pour le coulisseau (7) présentant c1) au moins deux, de préférence quatre, bielles (11 à 14), qui sont accouplées dans un palier de bielle supérieur (11A à 14A, 61, 62 et 63) directement ou indirectement au coulisseau (7), c2) au moins un vilebrequin rotatif autour d'un axe d'arbre (A, B), de préférence deux vilebrequins (15, 16) rotatifs autour d'un axe d'arbre (A, B), étant accouplés à la bielle ou aux bielles (11 à 14), de préférence à deux bielles (11 et 14, 12 et 13), dans un palier de bielle inférieur (11 B à 14B et 31 à 34), et c3) au moins un servomoteur (21 à 24) pour l'entraînement du vilebrequin ou des vilebrequins (15, 16), d) chaque vilebrequin (15, 16) et les paliers de bielle inférieurs (11 B à 14B et 31 à 34) des bielles (11 à 14) étant agencés au-dessous du coulisseau (7) et/ou au-dessous de la zone de logement d'outil (3) de la table de machine, et les paliers de bielle supérieurs (11A à 14A, 61, 62 et 63) des bielles (11 à 14) étant agencés au-dessus de la zone de logement d'outil (3) de la table de machine (2) et/ou au-dessus du logement d'outil (70) du coulisseau (7).
PCT/EP2010/065902 2009-11-26 2010-10-21 Machine de façonnage, en particulier servopresse WO2011064054A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009055739.3 2009-11-26
DE102009055739.3A DE102009055739B4 (de) 2009-11-26 2009-11-26 Umformmaschine, insbesondere Servopresse

Publications (1)

Publication Number Publication Date
WO2011064054A1 true WO2011064054A1 (fr) 2011-06-03

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WO (1) WO2011064054A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE102011016669B4 (de) 2011-04-12 2016-03-24 Schuler Pressen Gmbh Verfahren zum Betreiben einer Presse mit Unterantrieb und danach betriebene Presse
DE102012103807A1 (de) * 2012-05-02 2013-11-07 Komage-Gellner Maschinenfabrik Kg Pulverpresse
DE102012108933B4 (de) * 2012-09-21 2019-08-08 Schuler Pressen Gmbh Verfahren zum Betreiben einer Werkzeugmaschine oder Arbeitsmaschine und danach ausgeführte Werkzeugmaschine oder Arbeitsmaschine mit einer Verbindungsanordnung für ein Hubelement
EP3536493A1 (fr) * 2018-03-05 2019-09-11 Arcofil S.A. Presse électrique à moteur torque
DE102021118550A1 (de) 2021-07-19 2023-01-19 CellForm IP GmbH & Co. KG Vorrichtung zum Bearbeiten eines Werkstücks

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FR1109926A (fr) * 1954-08-12 1956-02-03 Clearing Machine Corp Mécanisme de guidage pour presses mécaniques à travailler le métal
GB759654A (en) * 1954-07-27 1956-10-24 Us Industries Inc Guide mechanism for metal drawing press
FR1145744A (fr) * 1955-01-28 1957-10-29 Bliss E W Co Presse à commande mécanique par en dessous
DE1128752B (de) * 1954-07-28 1962-04-26 Us Industries Inc Presse, insbesondere Blechziehpresse
US3082725A (en) * 1959-03-19 1963-03-26 Freeman Crampton Press
US3719445A (en) * 1971-05-10 1973-03-06 Danly Machine Corp Use of metal working press for plastic compression molding
US6477945B1 (en) * 1999-09-07 2002-11-12 Aida Engineering, Ltd. Double-action mechanical press
WO2006136045A1 (fr) * 2005-06-22 2006-12-28 Roland-Marcel Zumstein Dispositif d'estampage et/ou de formage de toles, fils metalliques et similaires
DE102004009256B4 (de) 2004-02-26 2008-04-03 Schuler Pressen Gmbh & Co. Kg Mechanische Mehrservopresse

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US4947673A (en) * 1989-04-13 1990-08-14 Connell Limited Partnership Removable slide presses
DE102005001878B3 (de) 2005-01-14 2006-08-03 Schuler Pressen Gmbh & Co. Kg Servopresse mit Kniehebelgetriebe
DE102007026727B4 (de) * 2006-06-08 2014-12-31 Müller Weingarten AG Antriebssystem einer Umformpresse
DE102008034971A1 (de) * 2008-07-25 2010-01-28 Müller Weingarten AG Antriebssystem einer Umformpresse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759654A (en) * 1954-07-27 1956-10-24 Us Industries Inc Guide mechanism for metal drawing press
DE1128752B (de) * 1954-07-28 1962-04-26 Us Industries Inc Presse, insbesondere Blechziehpresse
FR1109926A (fr) * 1954-08-12 1956-02-03 Clearing Machine Corp Mécanisme de guidage pour presses mécaniques à travailler le métal
FR1145744A (fr) * 1955-01-28 1957-10-29 Bliss E W Co Presse à commande mécanique par en dessous
US3082725A (en) * 1959-03-19 1963-03-26 Freeman Crampton Press
US3719445A (en) * 1971-05-10 1973-03-06 Danly Machine Corp Use of metal working press for plastic compression molding
US6477945B1 (en) * 1999-09-07 2002-11-12 Aida Engineering, Ltd. Double-action mechanical press
DE102004009256B4 (de) 2004-02-26 2008-04-03 Schuler Pressen Gmbh & Co. Kg Mechanische Mehrservopresse
WO2006136045A1 (fr) * 2005-06-22 2006-12-28 Roland-Marcel Zumstein Dispositif d'estampage et/ou de formage de toles, fils metalliques et similaires

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DE102009055739B4 (de) 2021-01-14
DE102009055739A1 (de) 2011-06-01

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