EP3278892B1 - Équipment de formage mécanique de pièces en tôle - Google Patents

Équipment de formage mécanique de pièces en tôle Download PDF

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Publication number
EP3278892B1
EP3278892B1 EP17185033.2A EP17185033A EP3278892B1 EP 3278892 B1 EP3278892 B1 EP 3278892B1 EP 17185033 A EP17185033 A EP 17185033A EP 3278892 B1 EP3278892 B1 EP 3278892B1
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EP
European Patent Office
Prior art keywords
supporting surface
management unit
equipment
sheet
pressing means
Prior art date
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Application number
EP17185033.2A
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German (de)
English (en)
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EP3278892A1 (fr
Inventor
Enrico PASOTTO
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Triveneta Impianti SRL
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Triveneta Impianti SRL
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Publication of EP3278892A1 publication Critical patent/EP3278892A1/fr
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    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0281—Workpiece supporting devices

Definitions

  • the present invention relates to a piece of equipment for the mechanical machining of sheet-shaped elements in metal material or the like.
  • equipment comprising pressing-bending machines having a bearing structure which defines a work surface designed to support the sheet-shaped elements to be machined, such as metal sheets, metal, plastic products or the like, and pressing means of the type of a work tool, such as e.g. a punch, a shaping or cutting element, movable with respect to the bearing structure nearer and away from the supporting surface.
  • pressing-bending machines having a bearing structure which defines a work surface designed to support the sheet-shaped elements to be machined, such as metal sheets, metal, plastic products or the like
  • pressing means of the type of a work tool such as e.g. a punch, a shaping or cutting element, movable with respect to the bearing structure nearer and away from the supporting surface.
  • the equipment of known type comprises at least an accompanying device adapted to support and accompany the portion of the sheet-shaped element not included in the bending operations, in particular in those cases in which the dimensions of the sheet-shaped element are particularly high.
  • the accompanying devices of known type are placed on the front part of the bearing structure of the press bending machine and comprise a base frame made of metal material, mounted on the bearing structure, with which is associated at least a supporting surface, made e.g. of sheet metal, arranged at the work surface.
  • the supporting surface is adapted to support and accompany the sheet-shaped elements during the bending phase in which the sheet-shaped element elevates with respect to a reference position in which it is substantially extended and horizontal.
  • the supporting surface is movable in rotation with respect to a relative axis of oscillation between a reference position, in which it is substantially horizontal and the pressing means rest at the portion to be bent, and a work position in which the supporting surface rotates around the axis of oscillation substantially positioning itself inclined with respect to the reference position.
  • the supporting surface is adapted to accompany the sheet-shaped element during the bending phase of the portion to be bent.
  • the accompanying devices are rigidly connected to the front part of the press bending machine by means of suitable linear guides chosen by the operator according to the dimensions of the sheet-shaped elements.
  • the accompanying devices can be demounted from the bearing structure or placed in a non-operative position, wherein the accompanying element does not obstruct the front part of the bearing structure, enabling the operator to have freedom of manual handling and forward movement above the work surface of the sheet-shaped elements during the relative bending operations.
  • the accompanying devices of known type also have controlled and independent movement such as to allow the rotation of the supporting surface in perfect synchrony with the elevation of the sheet-shaped element during the bending phase of the portion to be bent, sustaining and accompanying the surface of the sheet-shaped element adjacent to the portion to be bent.
  • the accompanying devices permit supporting the sheet-shaped elements to be bent, including very thick, simplifying and making easier the manual operations performed by the operators to support and guide the sheet-shaped elements during the bending operations performed by means of the pressing means and preventing any falls and/or slipping of the sheet-shaped elements during such operations.
  • the equipment of known type is equipped with a suitable management unit adapted to command the movement of the pressing means along the direction of sliding and, at the same time, the rotation of the supporting surface during the bending operations of the portion to be bent.
  • the synchronism between the bending and rotation operations of the supporting surface permits avoiding the damaging counter bending of the sheet-shaped elements when pressing is performed with inching operation or suddenly stopped.
  • JPS60162527 forming the basis for the preamble of claim 1 and JPS59147716 disclose pressing machines having supporting surfaces movable in rotation in order to accompany the sheet shaped element during the pressing action with no-delay.
  • EP249775 discloses a press body equipped with a lifting member having a lifting support which is guided in a cylindrical housing and on whose end facing away from the cylindrical housing a supporting unit is arranged pivotably in order to ensure that, during this pivoting movement, the supporting unit executes a coordinated movement directed upwards during the pressing action.
  • This equipment of known type does however have a number of drawbacks.
  • the main drawback is tied to the fact that the equipment of known type has one or more accompanying devices, the operation of which is closely tied to the operation of the press bending machine.
  • the press bending machine has a numerical management unit adapted to command the operation of the accompanying device and the operation of the press bending machine itself in a simultaneous way the one to the other.
  • Another drawback is tied to the complexity and low flexibility and versatility of use in the cases when, for example, it is necessary to use the accompanying devices on different press bending machines made by different manufacturers.
  • the main aim of the present invention is to provide a piece of equipment for the mechanical machining of sheet-shaped elements which is versatile and easily adaptable to the dimensional characteristics of the sheet-shaped elements to be machined.
  • one object of the present invention is to provide a piece of equipment for the mechanical machining of sheet-shaped elements having an accompanying device with independent operation with respect to the operation of the machine, in such a way as to allow its installation and correct functional synergy with any available press bending machine.
  • Another object of the present invention is to provide a piece of equipment for the mechanical machining of sheet-shaped elements which allows to overcome the aforementioned drawbacks of the prior art within the ambit of a simple, rational, easy, efficient to use and cost-effective solution.
  • reference numeral 1 globally indicates a piece of equipment for the mechanical machining of sheet-shaped elements.
  • the piece of equipment 1 comprises a press bending machine 2 having a bearing structure 3 which has a work surface 4 having a containment seat 5 for containing a portion to be bent 6a of a sheet-shaped element 6.
  • the machine 2 comprises pressing means 7 which are associated in a movable manner with the bearing structure 3 along a direction of sliding A moving close to / away from the work surface 4 and adapted to bend the portion to be bent 6a. More particularly, the pressing means 7 are movable vertically in translation.
  • Such pressing means 7 can, for example, be of the type of a punch for bending the portion to be bent 6a, of a cutting blade or made up of a forming element, adapted to give the sheet-shaped element 6 a particular shape.
  • the machine 2 is provided with a central management unit operatively connected to the pressing means 7 and programmed to control the movement thereof along the direction of sliding A.
  • Such central management unit is of the type of a numerical management unit having a programmable logic dedicated to the movement of the pressing means 7 for bending the portion to be bent 6a.
  • the piece of equipment 1 also comprises an accompanying device 8 having:
  • the piece of equipment 1 comprises movement means 24, in turn comprising at least two wheels associated with the base frame 9 to move the accompanying device 8 along a moving nearer and/or away direction, indicated in the illustrations by the arrow R, with respect to the machine 2.
  • the wheels 24 are associated below the base frame 9.
  • the base frame 9 has a plurality of wheels for relative movement and ground anchoring means.
  • the base frame 9 be equipped with removable fastening means for fastening in fixed position to the bearing structure 3.
  • the accompanying device 8 comprises adjustment means for adjusting the height of the supporting surface 10 with respect to the axis of oscillation B.
  • adjustment means can, for example, be of the type of a handwheel keyed to means for the vertical translation of the supporting surface 10.
  • the actuating means 11 are, for example, of the type of an electric motor operatively keyed to a ball-bearing screw with which the bottom face of the supporting surface 10 is associated.
  • Such screw is adapted to the rotation of the supporting surface 10 with respect to the axis of oscillation B.
  • the piece of equipment 1 comprises detection means 12 adapted to detect the position of the pressing means 7 along the direction of sliding A.
  • the accompanying device 8 comprises an independent management unit, distinct and independent from the central management unit, and programmed for the adjustment of the rotation of the supporting surface 10 depending on the position detected by the detection means 12.
  • the independent management unit is of the type of a programmable logic unit, commonly known by the code PLC.
  • the independent management unit is of the type of a micro controller or of a micro processor.
  • the detection means 12 comprise a detector device adapted to detect the position of the pressing means 7 along the direction of sliding A and operatively connected to the independent management unit, the latter being programmed to command the actuating means 11 depending on the position detected by the detector device 12.
  • the detector device 12 comprises a position transducer having a fixed part 16, associated with the bearing structure 3, and a movable part 17, associated with the pressing means 7.
  • the detector device 12 is of the type of an optical scale having the fixed part 16 and the movable part 17.
  • the detector device 12 is e.g. of the type of a proximity sensor, an optical sensor or the like.
  • the piece of equipment 1 comprises removable positioning means 13 for the positioning of the accompanying device 8 with respect to the machine 2 depending on the axis of oscillation B in a configuration of alignment.
  • the removable positioning means 13 permit the correct positioning of the base frame 9, suitably spaced apart from the bearing structure 3 so that the position of the supporting surface 10 is such that the relative rotation occurs around the axis of oscillation B.
  • the removable positioning means 13 comprise at least a coupling body provided with a first abutment surface 14, arranged in contact with at least a portion of the supporting surface 10, and a second abutment surface 15, arranged in contact with at least a portion of the work surface 4.
  • first abutment surface 14 is arranged in contact with a portion of the supporting surface 10, turned towards the bearing structure 3, while the second abutment surface 15 is arranged in contact with the containment seat 5.
  • the first abutment surface 14 has a substantially angular profile, which in the configuration of alignment is arranged in contact with at least two faces of the supporting surface 10 at right angles to one another.
  • the second abutment surface 15 has a pointed profile substantially complementary with the profile of the containment seat 5, in such a way as to enable its substantial fitting to measure inside the containment seat itself in the configuration of alignment.
  • the accompanying device 8 is positioned in such a way that the axis of oscillation B is substantially arranged inside the containment seat 5.
  • the accompanying device 8 can be associated with the machine 2, that the base frame 9 can be fixed to the front part of the bearing structure 3 or that it is arranged at the front part of the bearing structure 3 but detached from it.
  • the independent management unit comprises acquisition means of at least a reference position of the pressing means 7 with respect to the containment seat 5, and of at least a work position, in which the pressing means 7 are movable downwards along the direction of sliding A starting from the reference position.
  • the signals relating to the reference position and to the work position are provided by the detector device 12 to the acquisition means.
  • reference position is meant the particular position of the pressing means 7, movable along the direction of sliding A and arranged in contact with the portion to be bent 6a, which in turn is arranged at the containment seat 5.
  • the portion to be bent 6a is extended and resting on the work surface 4 above the containment seat 5 and the pressing means 7 contact the portion to be bent 6a in a contact point.
  • work position is meant the interval within which the pressing means 7 are movable inside the containment seat 5 starting from the reference position as far as the bottom surface of the containment seat itself.
  • the independent management unit comprises storage means for storing the reference position.
  • the storage means are adapted to store the position of the pressing means 7 at the contact point.
  • the storage of the data relating to the reference position in the contact point is done every time the sheet-shaped element 6 structurally changes, in particular in terms of thickness.
  • the independent management unit comprises calculation means of the data relating to the variation in the position of the pressing means 7 between the reference position and the work position, the calculation means being adapted to actuate the actuating means 11 for the rotation of the supporting surface 10 depending on such data.
  • the values provided by the acquisition means define the interval of movement of the pressing means 7 between the point of contact with the sheet-shaped element in the reference position and the point of contact of the portion to be bent 6a with the surface of the containment seat 5 at the end of bending.
  • the calculation means comprise at least a software program for processing the data relating to the change between the reference position and the work position and for providing a signal of activation of the actuating means 11.
  • the containment seat 5 has a substantially elongated shape along the work surface 4 and the axis of oscillation B extends substantially longitudinally to the containment seat 5.
  • the containment seat 5 comprises a pair of walls 18 converging towards the axis of oscillation B defined inside the containment seat itself.
  • the calculation means are operatively connected to the actuating means 11 for the relevant switch between:
  • the actuating means 11 are adapted to start the rotation of the supporting surface 10 with respect to the axis of oscillation B in such a way that, in the switch of the pressing means 7 from the reference position to the work position, the rotation of the supporting surface 10 accompanies the elevation of the sheet-shaped element 6 with a predefined angular rotation speed proportionate to the predefined descent speed of the pressing means 7 along the direction of sliding A.
  • the independent management unit comprises control means operatively connected to the actuating means 11 for the adjustment of the angular rotation speed of the supporting surface 10 depending on the opening angle.
  • control means affect the operation of the actuating means 11 by adjusting the angular rotation speed provided to the supporting surface 10, in such a way as to keep the supporting surface itself in contact with the sheet-shaped element 6 during the bending of the portion to be bent 6a.
  • the descent speed of the pressing means 7 along the direction of sliding A being equal, the bending of the portion to be bent 6a inside the containment seat 5 results in the sheet-shaped element 6 having an elevation speed higher than the angular rotation speed of the supporting surface 10 defined by the actuating means 11.
  • elevation speed is meant the change over time of the position of the sheet-shaped element 6, adjacent to the portion to be bent 6a, during the relative inclination upwards with respect to the reference position in which it is horizontally arranged.
  • control means are of the type of a potentiometer adjustable by the operator to control the angular rotation speed of the supporting surface 10.
  • the piece of equipment 1 comprises a piloting device 19 operatively connected to the independent management unit and having at least one of:
  • the piloting device 19 is of the type of a console provided with the selector elements 20, 21, 22, 23 and operatively connected to the independent management unit.
  • the first selector element 20 enables the operator to perform manually or automatically the rotation of the supporting surface 10 around the axis of oscillation B.
  • the operator can freely rotate the supporting surface 10 by means of a suitable manual command device.
  • Such manual command device can be integrated in the piloting device 19 or, alternatively, in the base frame 9.
  • the manual command device is operatively connected to the actuating means 11.
  • the operator enables the storage of the data relating to the reference position defined by the point of contact of the pressing means 7 with the sheet-shaped element 6.
  • the automatic operation mode provides for an initial calibration phase in which the pressing means 7 are moved, by means of the manual command of the operator, along the direction of sliding A at the portion to be bent 6a.
  • the operator by means of the operation of the second selector element 21, allows the storage means detecting the reference position.
  • the pressing means 7 are movable to the work position downwards inside the containment seat 5 and the calculation means are adapted to activate the actuating means 11 according to the data relating to the variation between the reference position and the work position.
  • the operator provides to the independent management unit the opening value of the containment seat 5 by means of the third selector element 22 and adjusts the angular rotation speed of the supporting surface 10 by means of the fourth selector element 23, so that the angular rotation speed substantially coincides with the elevation speed of the sheet-shaped element 6.
  • the third selector element 22 can be of the type of a numerical keypad adjustable by the operator and operatively connected to the independent management unit.
  • the piece of equipment 1 can be used in the automatic operation mode as long as the structural characteristics of the sheet-shaped element 6 and the opening of the containment seat 5 remain unchanged. Otherwise, it will be necessary to again proceed with a new initial calibration phase.
  • the present invention also describes a method for the mechanical machining of sheet-shaped elements, comprising the steps of:
  • the removable positioning means 13 are interposed between the accompanying device 8 and the machine 2 and, in particular, the angular profile of the abutment surface 14 is arranged in abutment with the portions of at least two faces transversal to each other of the supporting surface 10.
  • the abutment protrusion 15 is fitted to measure and in contact with the pair of walls 18 of the containment seat 5.
  • the accompanying device 8 is positioned in such a way that the axis of oscillation B is substantially arranged inside the containment seat 5.
  • the supply follows of the sheet-shaped element 6, to be substantially arranged above the supporting surface 10.
  • the portion to be bent 6a is arranged, by means of manual movement by the operator, on the work surface 4 at the containment seat 5, while the part of the sheet-shaped element not involved in the bending operation is arranged on the supporting surface 10.
  • the pressing means 7 are movable downwards along the direction of sliding A at a substantially constant sliding speed defined by means of the central management unit until contact is made with the portion to be bent 6a in the reference position.
  • the central management unit interrupts the movement of the pressing means 7 by means of the manual control of the operator and the operator acquires the reference position by pressing the second selector element 21.
  • the quota of the pressing means 7 arranged resting on the portion to be bent 6a, without any pressing or deforming action being applied of the portion to be bent itself, is stored by means of the storage means of the independent management unit.
  • the central management unit commands the descent of the pressing means 7 towards the inside of the containment seat 5 for the bending of the portion to be bent 6a.
  • the central management unit is adapted to command the descent of the pressing means 7 at the predefined descent speed.
  • the descent speed of the pressing means 7 is substantially equal to 10 mm/s, but a descent speed with different values cannot be ruled out.
  • the calculation then follows of the data relating to the change in position of the pressing means 7 from the reference position to the work position to command the actuating means 11.
  • the switch from the reference position to the work position results in the actuating means 11 being activated by means of the independent management unit for the rotation of the supporting surface 10 at the predefined angular rotation speed, in such a way that the sheet-shaped element 6, which elevates with respect to the reference position with the forward movement of the bending of the portion to be bent 6a, is accompanied and held by the supporting surface 10.
  • the pressing means 7 are movable downwards along the direction of sliding A as far as the position calculated by the central management unit of the machine.
  • the phase of adjustment of the angular rotation speed permits ensuring the supporting surface 10 rotates with respect to the axis of oscillation B with an angular rotation speed proportionate to the elevation speed of the sheet-shaped element 6 and that the supporting surface 10 maintains contact with and accompanies the sheet-shaped element 6 during the bending of the portion to be bent 6a.
  • the adjustment phase is performed by the operator by operating the fourth selector element 23 by means of which it is possible to intervene on the control means, in turn connected to the actuating means 11, to change the angular rotation speed.
  • the accompanying device and the detection means can be installed on any press bending machine available on the market.
  • the present invention has greater flexibility and versatility of use, simplifying the installation operations and the costs to be borne by customers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control Of Electric Motors In General (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (7)

  1. Equipement (1) d'usinage mécanique d'éléments en forme de tôle, comprenant :
    - au moins une machine cintreuse-plieuse (2) ayant :
    -- au moins une structure porteuse (3) qui a une surface de travail (4) ayant au moins un siège contenant (5) pour contenir au moins une portion à plier (6a) d'un élément en forme de tôle (6) à plier ;
    -- un moyen de pression (7) associé de manière mobile à ladite structure porteuse (3) le long d'une direction de glissement (A) se rapprochant ou s'éloignant de ladite surface de travail (4) et apte à plier ladite portion à plier (6a) ;
    -- au moins une unité de gestion centrale reliée opérationnellement audit moyen de pression (7) et programmée pour commander le déplacement de celui-ci le long de ladite direction de glissement (A) ;
    - au moins un dispositif d'accompagnement (8) ayant :
    -- au moins un cadre de base (9) pour reposer au sol ;
    -- au moins une surface de support (10) dudit élément en forme de tôle (6) associée audit cadre de base (9) et mobile en rotation par rapport à un axe d'oscillation (B) relatif ;
    -- un moyen d'actionnement (11) pour actionner la rotation de ladite surface de support (10) par rapport audit axe d'oscillation (B) ;
    ledit dispositif d'accompagnement (8) comprend :
    - un moyen de détection (12) pour détecter la position dudit moyen de pression (7) le long de ladite direction de glissement (A) ; et
    - au moins une unité de gestion indépendante, distincte de ladite unité de gestion centrale et programmée pour le réglage de la rotation de ladite surface de support (10) en fonction de la position détectée par ledit moyen de détection (12),
    caractérisé par le fait qu'il comprend un moyen de positionnement amovible (13) pouvant être interposé entre ladite machine (2) et ledit dispositif d'accompagnement (8) pour le positionnement dudit dispositif d'accompagnement (8) dans une configuration d'alignement par rapport à ladite machine (2) en fonction dudit axe d'oscillation (B),
    dans lequel ledit moyen de positionnement amovible (13) comprend au moins une première surface de butée (14) agencée en contact avec au moins une portion de ladite surface de support (10) et au moins une seconde surface de butée (15) agencée en contact avec au moins une portion dudit siège contenant (5), et ladite seconde surface de butée (15) a un profil pointu sensiblement complémentaire du profil dudit siège contenant (5), de manière à permettre son ajustement substantiel pour mesurer à l'intérieur du siège contenant lui-même, dans la configuration d'alignement.
  2. Equipement (1) selon la revendication 1, caractérisé par le fait que ledit moyen de détection (12) comprend au moins un dispositif détecteur (12) apte à détecter la position dudit moyen de pression (7) le long de ladite direction de glissement (A) et relié opérationnellement à ladite unité de gestion indépendante, celle-ci étant programmée pour commander ledit moyen d'actionnement (11) en fonction de la position détectée par ledit dispositif détecteur (12), et par le fait que ledit dispositif détecteur (12) comprend au moins un transducteur de position ayant une partie fixe (16) associée à ladite structure porteuse (3) et une partie mobile (17) associée audit moyen de pression (7) par rapport à ladite partie fixe (16), ledit dispositif détecteur (12) étant apte à fournir, à ladite unité de gestion indépendante, les valeurs relatives à la position détectée de ladite partie mobile (17) par rapport à ladite partie fixe (16).
  3. Equipement (1) selon une ou plusieurs des revendications précédentes, caractérisé par le fait que ladite unité de gestion indépendante comprend :
    - un moyen d'acquisition d'au moins une position de référence dudit moyen de pression (7) par rapport audit siège contenant (5) et d'au moins une position de travail, à laquelle ledit moyen de pression (7) est déplaçable vers le bas le long de ladite direction de glissement (A) à partir de ladite position de référence ;
    - un moyen de stockage pour stocker ladite position de référence ;
    - un moyen de calcul de données relatives à la variation de la position dudit moyen de pression (7) de ladite position de référence à ladite position de travail, ledit moyen de calcul étant apte à actionner ledit moyen d'actionnement (11) pour la rotation de ladite surface de support (10) en fonction desdites données.
  4. Equipement (1) selon une ou plusieurs des revendications précédentes, caractérisé par le fait que ledit moyen d'actionnement (11) peut commuter entre :
    - une première configuration, dans laquelle ledit moyen de pression (7) est agencé à ladite position de référence, ledit moyen d'actionnement (11) est désactivé et ladite surface de support (10) est agencée sensiblement horizontalement ; et
    - une seconde configuration, dans laquelle ledit moyen de pression (7) est agencé à ladite position de travail, ledit moyen d'actionnement (11) est actif et apte à faire tourner ladite surface de support (10) à une vitesse de rotation angulaire relative.
  5. Equipement (1) selon une ou plusieurs des revendications précédentes, caractérisé par le fait que ledit siège contenant (5) a une forme sensiblement allongée le long de ladite surface de travail (4) et ledit axe d'oscillation (B) s'étend sensiblement longitudinalement jusqu'audit siège contenant (5), ledit siège contenant (5) comprenant une paire de parois (18) convergeant vers ledit axe d'oscillation (B).
  6. Equipement (1) selon une ou plusieurs des revendications précédentes, caractérisé par le fait qu'il comprend au moins un dispositif de pilotage (19) relié opérationnellement à ladite unité de gestion indépendante et ayant au moins l'un parmi :
    - un premier élément sélecteur (20) utilisable par un opérateur pour la commande manuelle dudit moyen d'actionnement (11)
    - un deuxième élément sélecteur (21) utilisable par ledit opérateur pour la commande dudit moyen de stockage ;
    - un troisième élément sélecteur (22) utilisable par ledit opérateur pour la transmission de la valeur d'ouverture dudit siège contenant (5) à ladite unité de gestion indépendante ;
    - un quatrième élément sélecteur (23) utilisable par ledit opérateur pour le réglage dudit moyen d'actionnement (11) et de la vitesse de rotation angulaire de ladite surface de support (10).
  7. Equipement (1) selon une ou plusieurs des revendications précédentes, caractérisé par le fait qu'il comprend un moyen de déplacement (24) comprenant au moins deux roues (24) associées audit cadre de base (9) pour déplacer ledit dispositif d'accompagnement (8) le long d'une direction de rapprochement et/ou d'éloignement (R) par rapport à ladite machine (2).
EP17185033.2A 2016-08-05 2017-08-04 Équipment de formage mécanique de pièces en tôle Active EP3278892B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000083221A IT201600083221A1 (it) 2016-08-05 2016-08-05 Attrezzatura per la lavorazione meccanica di elementi lastriformi

Publications (2)

Publication Number Publication Date
EP3278892A1 EP3278892A1 (fr) 2018-02-07
EP3278892B1 true EP3278892B1 (fr) 2021-07-21

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EP17185033.2A Active EP3278892B1 (fr) 2016-08-05 2017-08-04 Équipment de formage mécanique de pièces en tôle

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EP (1) EP3278892B1 (fr)
IT (1) IT201600083221A1 (fr)

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CN111421023B (zh) * 2020-03-16 2021-07-09 南京邮电大学 二自由度金属板材折弯随动托料装置及其运动学反解方法
CN111421024B (zh) * 2020-03-16 2021-08-10 南京邮电大学 基于复合驱动的随动托料装置及其运动学反解方法
CN113477758B (zh) * 2021-07-28 2024-02-20 邵东智能制造技术研究院有限公司 大型板材折弯机
CN114345999B (zh) * 2022-03-18 2022-06-14 南通航力重工股份有限公司 一种基于智能传感器的数控折弯机

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DE102021126237B3 (de) 2021-10-11 2023-02-02 Schaeffler Technologies AG & Co. KG Bipolarplatte einer Brennstoffzelle und Verfahren zur Herstellung und Detektion geometrischer Merkmale eines Halbblechs einer Bipolarplatte
WO2023061524A1 (fr) 2021-10-11 2023-04-20 Schaeffler Technologies AG & Co. KG Plaque bipolaire d'une pile à combustible ayant des caractéristiques d'orientation géométrique, et procédé de fabrication et de détection de caractéristiques géométriques d'une demi-feuille d'une plaque bipolaire

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