EP2281682A2 - Système de machine destiné à la commande et au fonctionnement de plusieurs machines-outils de formage sans usinage - Google Patents

Système de machine destiné à la commande et au fonctionnement de plusieurs machines-outils de formage sans usinage Download PDF

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Publication number
EP2281682A2
EP2281682A2 EP10171922A EP10171922A EP2281682A2 EP 2281682 A2 EP2281682 A2 EP 2281682A2 EP 10171922 A EP10171922 A EP 10171922A EP 10171922 A EP10171922 A EP 10171922A EP 2281682 A2 EP2281682 A2 EP 2281682A2
Authority
EP
European Patent Office
Prior art keywords
forming
hydraulic drive
machine
machines
presses
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.)
Withdrawn
Application number
EP10171922A
Other languages
German (de)
English (en)
Inventor
Volker Prof. Thoms
Manfred Wanzke
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.)
Wanzke AG
Technische Universitaet Dresden
Original Assignee
Wanzke AG
Technische Universitaet Dresden
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 Wanzke AG, Technische Universitaet Dresden filed Critical Wanzke AG
Publication of EP2281682A2 publication Critical patent/EP2281682A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—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 plungers under fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses

Definitions

  • the invention relates to a machine system for controlling and operating a plurality of non-cutting forming machine tools, in particular hydraulic presses for the primary and forming, in particular sheet metal forming, wherein at least two of the hydraulically driven, chipless forming machines are connected to a common hydraulic drive unit.
  • Hydraulic presses are often used for the non-cutting shaping of workpieces, in particular in the automotive industry.
  • An advantage of the hydraulic presses is that the nominal force is available at every point of the stroke.
  • Hydraulic presses consist essentially of the main assemblies tool carrier, body and drive.
  • a hydraulic press has several tool carriers which act as moving and stationary tool carriers (ram of the press as moving tool carrier, sliding / changing table as tool carrier).
  • the tool-guiding function is secured in the interaction of tool carriers and body, z. B. by the leadership of the press ram in the tappet guide of the body.
  • the conversion of the drive energy into the motion sequences transmitted from the tool carrier to the workpiece usually requires a branched structure for the drive.
  • This consists of the actual drive unit (eg electric motor with flywheel, gear ratio, shiftable clutch, brake), the main gearbox, the auxiliary gearboxes (eg toggle mechanism for generating a workpiece clamping movement) and corresponding control or regulating organs together.
  • the main assemblies tool carriers (fixed and moving tool carriers), body (racks or bed) and drive (drive unit, main and sub-transmission, control elements) can be supplemented if necessary by additional assemblies with which an extension of the application area of the machine tool or its partial automation (z B. by automatic supply or discharge devices) is made possible.
  • each forming device is coupled to at least one first hydraulic drive with at least one pump.
  • at least two forming devices are connected to a common hydraulic drive in this device and controlled so that the drive power of the common hydraulic drive can be selectively delivered to the first forming device or the subsequent second forming device.
  • FIG. 1 of the EP 1 236 565 A1 the linear arrangement of two pairs of forming devices P1, P2 and P3, P4, which are each coupled to a hydraulic drive unit H1 or H2.
  • a disadvantage of this method and the associated device is that the pressurization of the forming devices P1 and P2 exclusively alternately, d. H. in exchange, can be done. Due to the intervening, technological auxiliary times for the loading and removal of the workpieces and for the cleaning or cooling of the molding or forming dies, the common hydraulic drive unit H1 is only cyclically loaded.
  • the object of the invention is to eliminate the disadvantages of the known prior art and to propose a machine system that allows for reduced space requirements, control and operation of the original and forming machines in the range of the power or energy optimum and minimizes the space requirement.
  • the device or arrangement according to the invention consists of a number of identically constructed or different, z.
  • the individual forming or forming machines are arranged in a star or annular ring around the central drive and closely spaced. and directly connected to the central drive.
  • it is well spaced that the distance between the primary forming or forming machines to the common central drive is as small as possible.
  • a significantly higher surface utilization coefficient is achieved compared to the known linear arrangement of the linear arrangement.
  • a direct connection between the hydraulic drive and the respective forming or forming machines is realized in that each machine has a connection exclusively associated with the central drive.
  • the losses in the pressure transmission are minimal.
  • the individual forming or forming machines can be applied faster and thereby the cycle times are reduced.
  • the common central drive designed as a hydraulic drive, by the exact same, two or more master or forming machines, which together with the central drive form a manufacturing nest, are simultaneously subjected to force.
  • the common central drive can be driven in the region of its optimum performance since it is possible to use several primary forming or forming machines of lesser dimensions Power, provided that their combined power requirement is less than the rated power of the drive unit.
  • the star or circle structure also redefines the operating paths between the individual forming or forming machines. They allow higher degrees of freedom in production and conversion. In the spaces between the space can be used for turning parts, for supplying additional parts or additional processing, eg. Welding, filling, measuring, coating, mounting, testing.
  • the central drive can be advantageously designed as a supporting column and thus as a side wall of a system of any kind. This creates a compact machine in a new dimension. Thus, advantageously up to 8 or more machines can be connected in the ring or star.
  • the new concept in a circle and star configuration is a stand-alone solution that can be connected to any other centers, stand-alone solutions and manufacturing facilities.
  • the circular and star-shaped machining centers allow all degrees of freedom for automation.
  • the forming or forming machines may preferably be connected by a handling or manipulator system, which circulates the workpieces around the column z. B. transported from press to press or equipped with a handling segment, the z. B. works between two presses. It is also possible to automate the presses with any other type, eg. With robots.
  • the new press centers can work with several tools per press. It can be made several different parts at the same time.
  • the arrangement advantageously allows parts forward and z. B. to transport in a clockwise direction, but also alternatively backwards z. B. twice before, once backwards.
  • This method allows the use of simple tools that are flexibly actuated, eg. B. comb sliding method.
  • the simultaneous pressurization of several presses increases the throughput.
  • the new circular and star technology in analog press construction allows energy savings of over 90% compared to the known press lines that are in use today and have electrical connection values of 11,000 kW - 14,000 kW. B. insert machines.
  • the centrally arranged presses according to the invention with a central, closely spaced hydraulic drive require a connected load of less than 1000 kW.
  • a central drive preferably a. Hydraulic drive, advantageously up to eight machine tools.
  • the star or circular ring structure also minimizes the operating distances between the individual forming or forming machines.
  • a significant advantage is that two or more of the non-cutting forming machines can be pressurized simultaneously by the larger number of closely spaced primary forming or forming machines. During the necessary technological auxiliary times for loading and unloading the workpieces and the cleaning of the working space other, belonging to the nest forming or forming machines can be applied by the central drive with pressure and used for the processing of other workpieces in this time.
  • Fig. 1 shows the layout of a device for controlling and operating three identical, hydraulic presses for the forming of sheet metal parts, which are supplied by a central hydraulic drive H 1 .
  • the three presses P1, P2, P3. are arranged at an angle of 120 degrees to each other in a star shape and closely spaced around the central hydraulic drive H 1 and connected thereto.
  • Fig. 2 shows in a plan view of the cross-shaped arrangement of four hydraulic drawing presses P1 ... P4, with different Bacpreßkraft, which are connected to the common, centrally arranged hydraulic drive H 1 , The placement of the presses takes place with not shown manipulators.
  • Fig. 3 shows in a highly schematic representation as a plan view of the machine layout of two adjacent production nests. Both nests have a centrally arranged hydraulic drive H 1 or H 2 .
  • the working areas of four hydraulic presses P 1 . 1 ... P 1.4 or P 2.1 ... P 2.4 are arranged on the circumference of a circular path, the center of which forms the central hydraulic drive H 1 or H 2 .
  • the hydraulic presses are P 1.1 to P 2 . 4 closely spaced and arranged symmetrically to the respective central hydraulic drive H 1 and H 2 .
  • the transport of the workpieces takes place within the manufacturing nest (F 1 , F 2 ) by a transport system (T 1 , T 2 ), which moves the workpieces to be processed in a circle around the central hydraulic drive (H 1 , H 2 ,) press to press.
  • One advantage of the solution according to the invention is that, depending on the parts spectrum and lot size, individual presses P 1.1 ... P 1.4 or P 2.1 ... P 2.4 can be operated in groups or separately. It is also possible to operate each individual press independently (eg with a reduced order volume).
  • the maximum nominal pressing force of the centrally arranged hydraulic drive systems H 1 or H 2 depends on the predominantly processed product range. Due to the energetic coupling of the central drives H 1 and H 2 with the associated hydraulically operated machine tools P 1.1 .... P 2.4 is advantageously the ability to apply pressure to two or more machines simultaneously. To shorten the cycle times of the hydraulic presses, these have advantageous multi-function cylinder after the DE 10 2006 025 463 B4 on. These multi-function cylinders allow stroke rates of the plunger of up to 1200 piston strokes / min, since the otherwise necessary relaxation or compression of the fluid used deleted.
  • a 1 An the cross-sectional areas of the working cylinders of the hydraulic presses P 1.1 ... P nm and s, ... S n are the effective working stroke of the respective press during the forming process.
  • two or more workpieces can be processed simultaneously on several, closely spaced, hydraulically operating molding machines, of the common centrally arranged hydraulic drive H 1 and / or H 2 be pressurized.
  • Fig. 4 shows the schematic three-dimensional representation of a solution in which four presses P1 ... P4 are arranged around a common hydraulic drive H1 around.
  • the presses have a direct connection to the hydraulic drive.
  • the manipulators between the presses the workpieces are passed from one press to another.
  • a particularly advantageous operating regime provides that the two opposing presses are pressurized simultaneously while the other two presses are open and the manipulators remove the workpieces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP10171922A 2009-08-04 2010-08-04 Système de machine destiné à la commande et au fonctionnement de plusieurs machines-outils de formage sans usinage Withdrawn EP2281682A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009036565A DE102009036565B4 (de) 2009-08-04 2009-08-04 Maschinensystem zur Steuerung und zum Betrieb mehrerer spanlos formgebender Werkzeugmaschinen

Publications (1)

Publication Number Publication Date
EP2281682A2 true EP2281682A2 (fr) 2011-02-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10171922A Withdrawn EP2281682A2 (fr) 2009-08-04 2010-08-04 Système de machine destiné à la commande et au fonctionnement de plusieurs machines-outils de formage sans usinage

Country Status (2)

Country Link
EP (1) EP2281682A2 (fr)
DE (1) DE102009036565B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110323016A (zh) * 2019-06-18 2019-10-11 国网河南省电力公司电力科学研究院 一种电力金具同步压制成型方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236565A1 (fr) 2001-03-02 2002-09-04 Schuler SMG GmbH & Co. KG Procédé de commande de plusieurs dispositifs de formage et dispositif de mise en oeuvre dudit procédé
DE102006025463B4 (de) 2005-12-03 2007-12-20 Carina Wanzke Multifunktionszylinder mit Kolben hydraulisch angetrieben für Pressen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3009175B2 (ja) * 1990-03-29 2000-02-14 東芝ホームテクノ株式会社 アイロン装置
DE29724779U1 (de) * 1997-09-10 2004-01-08 Volkswagen Ag Rundknetanlage zur Bearbeitung von Werkstücken
ITVR20020118A1 (it) * 2002-11-12 2004-05-13 Amafa Service S R L Procedimento per l'ottenimento di elementi tubolari metallici.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236565A1 (fr) 2001-03-02 2002-09-04 Schuler SMG GmbH & Co. KG Procédé de commande de plusieurs dispositifs de formage et dispositif de mise en oeuvre dudit procédé
DE102006025463B4 (de) 2005-12-03 2007-12-20 Carina Wanzke Multifunktionszylinder mit Kolben hydraulisch angetrieben für Pressen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110323016A (zh) * 2019-06-18 2019-10-11 国网河南省电力公司电力科学研究院 一种电力金具同步压制成型方法
CN110323016B (zh) * 2019-06-18 2020-08-28 国网河南省电力公司电力科学研究院 一种电力金具同步压制成型方法

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DE102009036565B4 (de) 2012-02-16
DE102009036565A1 (de) 2011-02-10

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