EP3558557B1 - Dispositif et procédé de façonnage d'une tôle - Google Patents

Dispositif et procédé de façonnage d'une tôle Download PDF

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Publication number
EP3558557B1
EP3558557B1 EP17801034.4A EP17801034A EP3558557B1 EP 3558557 B1 EP3558557 B1 EP 3558557B1 EP 17801034 A EP17801034 A EP 17801034A EP 3558557 B1 EP3558557 B1 EP 3558557B1
Authority
EP
European Patent Office
Prior art keywords
support
clamping elements
orientation
actuators
correction
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.)
Active
Application number
EP17801034.4A
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German (de)
English (en)
Other versions
EP3558557A1 (fr
Inventor
Frank-Andreas Bauer
Robert Näb
Rena PECH
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP3558557A1 publication Critical patent/EP3558557A1/fr
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Classifications

    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for
    • 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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/005—Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece
    • 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
    • B21D5/004—Bending sheet metal along straight lines, e.g. to form simple curves with program control

Definitions

  • the present invention relates to a device and a method for forming a sheet metal, in particular a body or a body part.
  • the EP 2 077 166 A1 relates to a longitudinal edge processing device for sheet metal, in particular in pipe production, with a clamping device, an edge processing device and a bending device with a lower and upper forming tool arrangement which are designed for bending the longitudinal edge.
  • An efficient longitudinal edge processing of sheets is achieved in that the lower and the upper forming tool arrangement are extended over the entire length of the longitudinal edge of the sheet and of which at least the upper or the lower forming tool arrangement for carrying out the bending process is adjustable and adjustable in the vertical direction with respect to the sheet metal plate Bending force can be applied in the adjustment direction.
  • the DE 24 02 190 A1 describes an apparatus for bending steel sheets or plates to be deformed into a desired configuration having a multi-curved surface.
  • the device has an upper die group of at least three rows of dies, which are arranged in the transverse direction of the steel plate above the latter, and are able to define a curved surface suitable for deforming the steel plate into the desired configuration, a lower die group consisting of at least three rows of punches is provided, which are also arranged transversely to the steel plate below this and are able to press the steel plate against the upper punch group and the upper punch group is arranged so that its punches, which are individually adjustable, as well as the individual rows of punches of the at least three rows of punches can be optionally preset with regard to the relative heights and the distance between the rows of punches.
  • the lower die group is arranged in such a way that the respective rows of dies can be optionally preset with regard to their mutual spacing, as a result of which the curvatures of the steel plate in the
  • U.S. 4,212,188 A1 discloses an apparatus for forming sheet metal using two opposing sets of punches arranged in matrix arrays with corresponding punches facing each other.
  • the punches are individually movable and positioned so that their ends define a surface with a desired configuration.
  • Pivotable working engagement heads with rounded surfaces are provided on the punches in order to improve the surface quality of the workpiece.
  • the invention is based on the object of creating a device and a method for forming a sheet metal which reliably enable a correction with little effort during production.
  • a device for forming a sheet which is designed with a plurality of support and clamping elements which are set up in cooperation, in mechanical contact with the sheet and by holding, orienting and / or positioning clamping the sheet metal to a shape, with a plurality of actuators which are set up to orient and / or position the plurality of support and clamping elements, and with a control device for the actuators which is set up to close the plurality of actuators an adjustment correction of the orientation and / or position of the support and clamping elements.
  • control device is designed to generate and / or receive a correction signal representative of an adjustment correction of the orientation and / or position of the support and clamping elements, and an adjustment correction based on the correction signal by causing a corresponding actuation of the actuators to effect the orientation and / or position of the support and clamping elements.
  • the actuators and consequently the individual support and clamping elements can be adjusted via the control device as required for readjustment and adjustment correction without manual intervention. This can be done in an automated manner, and any adjustment measures can be logged at the same time. This simplifies handling and avoids errors.
  • Sensor elements can be used as additional and separate means in order to detect the state - that is to say for example also the position and / or orientation - of the respective actuators and / or the support and clamping elements.
  • the device according to the invention for forming a sheet metal is particularly advantageous if, according to an advantageous embodiment, the control device is set up to interact with the actuators and to detect a respective actual orientation and / or actual position of the support and clamping elements.
  • the actual orientation and / or actual position can be detected by sensors integrated in the actuators and / or by a control provided for each actuator, for example a stepper motor or a pneumatic cylinder.
  • a particularly reliable form of readjustment results when the control device is operated in the manner of a control loop.
  • the control device is set up to compare a respective actual orientation and / or actual position of the support and clamping elements with a respective target orientation and / or nominal position of the support and clamping elements and on the basis of a result of the comparison, to generate a correction signal representative of an adjustment correction of the orientation and / or position of the support and clamping elements.
  • the correction signal can consequently form the basis for readjustment.
  • a method for forming a metal sheet is also created, which in particular uses the device according to the invention for forming a metal sheet.
  • the sheet metal is shaped by clamping, with mechanical contact, a plurality of support and clamping elements with the sheet by holding, orienting and / or positioning the support and clamping elements.
  • the orientation and / or position of the support and clamping elements are controlled for an adjustment correction.
  • a correction signal representative of an adjustment correction of the orientation and / or position of the support and clamping elements is generated and / or received.
  • an adjustment correction of the orientation and / or position of the support and clamping elements is effected, in particular by actuating actuators.
  • a respective actual orientation and / or actual position of the support and clamping elements is compared with a respective target orientation and / or nominal position of the support and clamping elements.
  • a correction signal representative of an adjustment correction of the orientation and / or position of the support and clamping elements is generated. This correction signal can then be used as a basis for the subsequent adjustment in the sense of a post-correction.
  • Figure 1 shows an embodiment of the device 100 according to the invention for forming a sheet metal 1 in a schematic side view in a first operating state.
  • the core consists of a plurality of support and clamping elements 11, 12 and 13, which can be adjusted and adapted in their position and / or orientation in relation to a sheet 1 to be formed via actuators 21, 22 and 23.
  • the actuators 21, 22 and 23 are connected to a control device 10 of the device 100 via a control line 20.
  • the control line 20 can also be understood as a detection and control line 20, because it can also be designed to send feedback from the individual actuators 20, 22 and 23 and the associated support and tensioning elements 11, 12 and 13 to the control device 10 of the device 100 for evaluating and assessing the state of the sheet metal 1 and / or the arrangement of actuators 21, 22 and 23 and support and clamping elements 11, 12 and 13.
  • the sheet 1 has a top side 1-1 and a bottom side 1-2 and is shown in the schematic representation Figure 1 arranged extending in a plane perpendicular to the plane of the drawing.
  • the outer actuators 21 are operated so that the first support and clamping elements 11 are brought up to the top 1-1 or to the bottom 1-2 of the sheet 1, mechanically touch it and clamp and fix between them.
  • the section of the sheet metal 1 arranged between the first support and tensioning elements 11 is fixed in the manner of a clamping frame; this is necessary for the subsequent shaping processes.
  • second support and tensioning elements 12 are brought up to the top 1-1 of the sheet 1 in such a way that they follow approximately a shape 1-3 'desired for the sheet 1 in the manner of a support point distribution.
  • a third support and clamping element 13 is brought from below to the underside 1-2 of the sheet 1 in such a way that the third support and clamping element 13 touches the underside 1-2 of the sheet 1 and from the in Figure 4 1 'designated rest position moved upwards in the direction of the second support and clamping elements 12 to generate an actual shape 1-3 of the sheet 1, the course of the points of contact with the second and third support and clamping elements 12 and 13 follows or corresponds .
  • the control of the third actuator 23 can be carried out during the production process, for example during the manufacture of subsequent parts cause by the control device 10 via the control line 20 that by changing the actuation of the third actuator 23 the third support and tensioning element 13 to the in Figure 4 with 13 'designated position is shifted so that the actual shape 1-3 approximates the desired shape 1-4 of the sheet metal 1 in the subsequent production process as closely as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Making Paper Articles (AREA)

Claims (6)

  1. Dispositif (100) de façonnage d'une tôle (1), comprenant :
    - une pluralité d'éléments d'appui et de serrage (11, 12, 13) qui sont aménagés pour serrer la tôle (1) en vue d'une mise en forme, en coopération, en contact mécanique avec la tôle (1), par maintien, orientation et/ou positionnement,
    - une pluralité d'actionneurs (21, 22, 23) qui sont aménagés pour orienter et/ou positionner la pluralité d'éléments d'appui et de serrage (11, 12, 13), et
    - un dispositif de commande (10) pour les actionneurs (21, 22, 23), qui est aménagé pour commander la pluralité d'actionneurs (21, 22, 23) en vue d'une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13),
    caractérisé en ce que le dispositif de commande (10) est aménagé
    - pour générer et/ou recevoir un signal de correction représentant une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13),
    - sur la base du signal de correction, en provoquant un actionnement adéquat des actionneurs (21, 22, 23), pour induire une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13).
  2. Dispositif (100) selon la revendication 1, dans lequel le dispositif de commande (10) en coopération avec les actionneurs (21, 22, 23) est aménagé pour détecter une orientation réelle et/ou une position réelle respective(s) des éléments d'appui et de serrage (11, 12, 13).
  3. Dispositif (100) selon la revendication 2, dans lequel le dispositif de commande (10) est aménagé
    - pour comparer une orientation réelle et/ou une position réelle respective(s) des éléments d'appui et de serrage (11, 12, 13) avec une orientation théorique et/ou une position théorique respective(s) des éléments d'appui et de serrage (11, 12, 13), et
    - sur la base d'un résultat de la comparaison, pour générer un signal de correction représentant une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13) .
  4. Procédé de façonnage d'une tôle (1), en particulier en utilisant un dispositif selon l'une quelconque des revendications 1 à 3, dans lequel :
    - la tôle (1) est façonnée par le serrage, avec contact mécanique, d'une pluralité d'éléments d'appui et de serrage (11, 12, 13) avec la tôle (1) par le maintien, l'orientation et/ou le positionnement des éléments d'appui et de serrage (11, 12, 13),
    - l'orientation et/ou la position des éléments d'appui et de serrage (11, 12, 13) sont commandées en vue d'une correction d'ajustement,
    - un signal de correction représentant une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13) est généré et/ou reçu, et
    - sur la base du signal de correction, en particulier par l'actionnement des actionneurs (21, 22, 23), une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13) est induite.
  5. Procédé selon la revendication 4, dans lequel une orientation réelle et/ou une position réelle respective(s) des éléments d'appui et de serrage (11, 12, 13) est détectée en particulier par l'intermédiaire des actionneurs (21, 22, 23).
  6. Procédé selon la revendication 5, dans lequel
    - une orientation réelle et/ou position réelle respective(s) des éléments d'appui et de serrage (11, 12, 13) est/sont comparée(s) avec une orientation théorique et/ou une position théorique respective(s) des éléments d'appui et de serrage (11, 12, 13), et
    - sur la base d'un résultat de la comparaison, un signal de correction représentant une correction d'ajustement de l'orientation et/ou de la position des éléments d'appui et de serrage (11, 12, 13) est généré.
EP17801034.4A 2016-12-22 2017-11-17 Dispositif et procédé de façonnage d'une tôle Active EP3558557B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016225986.5A DE102016225986A1 (de) 2016-12-22 2016-12-22 Vorrichtung und Verfahren zum Formen eines Bleches
PCT/EP2017/079532 WO2018114156A1 (fr) 2016-12-22 2017-11-17 Dispositif et procédé de façonnage d'une tôle

Publications (2)

Publication Number Publication Date
EP3558557A1 EP3558557A1 (fr) 2019-10-30
EP3558557B1 true EP3558557B1 (fr) 2021-05-05

Family

ID=60409286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17801034.4A Active EP3558557B1 (fr) 2016-12-22 2017-11-17 Dispositif et procédé de façonnage d'une tôle

Country Status (5)

Country Link
US (1) US20190299265A1 (fr)
EP (1) EP3558557B1 (fr)
CN (1) CN109789463B (fr)
DE (1) DE102016225986A1 (fr)
WO (1) WO2018114156A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109909364B (zh) * 2019-03-04 2020-04-21 南京航空航天大学 一种金属钣金件无模加工方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402190C3 (de) * 1974-01-17 1978-03-02 Mitsubishi Jukogyo K.K., Tokio Vorrichtung zum Biegen von Stahlblechen bzw. -platten
US4212188A (en) * 1979-01-18 1980-07-15 The Boeing Company Apparatus for forming sheet metal
DE19921176A1 (de) * 1999-05-07 2000-11-09 Stade Umformtechnik Gmbh Werkzeug zur Herstellung von unregelmäßig gekrümmten Blechen
DE10043209A1 (de) * 2000-09-01 2002-04-04 Esc Gmbh & Co Kg Extended Stru Flexibles Werkzeug zur Umformung eines Werkstücks
EP1638710A1 (fr) * 2003-06-04 2006-03-29 Finn-Power OY Systeme permettant de mesurer l'angle de cintrage d'une machine destinee a cintrer des toles et/ou des sections metalliques ainsi qu'un procede et une machine destines a cintrer des toles et/ou des sections metalliques au moyen de ce systeme
DE202005013912U1 (de) * 2005-09-02 2005-12-08 F. Post Gmbh Stufen-Umformautomat
DE202008000121U1 (de) * 2008-01-03 2008-04-17 Eisenbau Krämer mbH Blechbiegemaschine
JP2010194599A (ja) * 2009-02-26 2010-09-09 Ihi Corp 自動鋼板曲げ装置による加熱位置修正方法及び装置
CN101712054B (zh) * 2009-06-01 2011-11-30 高忠旭 折弯方法以及手动折弯机
US8298242B2 (en) * 2010-04-30 2012-10-30 Warsaw Orthopedic, Inc. Systems, devices and methods for bending an elongate member
JP6104725B2 (ja) * 2013-06-12 2017-03-29 三菱重工業株式会社 板状ワークの捩り保持装置および捩り保持方法ならびに捩り成形方法
US10124546B2 (en) * 2015-03-04 2018-11-13 Ebert Composites Corporation 3D thermoplastic composite pultrusion system and method
US9963978B2 (en) * 2015-06-09 2018-05-08 Ebert Composites Corporation 3D thermoplastic composite pultrusion system and method
CN105013939B (zh) * 2015-06-17 2017-05-17 武汉理工大学 基于自发热的搅拌摩擦成形装置及工艺

Also Published As

Publication number Publication date
CN109789463A (zh) 2019-05-21
EP3558557A1 (fr) 2019-10-30
DE102016225986A1 (de) 2018-06-28
WO2018114156A1 (fr) 2018-06-28
CN109789463B (zh) 2021-08-03
US20190299265A1 (en) 2019-10-03

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