EP0252084B1 - Systeme de fabrication pour l'usinage automatique de pieces metalliques a usiner - Google Patents

Systeme de fabrication pour l'usinage automatique de pieces metalliques a usiner Download PDF

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Publication number
EP0252084B1
EP0252084B1 EP86901837A EP86901837A EP0252084B1 EP 0252084 B1 EP0252084 B1 EP 0252084B1 EP 86901837 A EP86901837 A EP 86901837A EP 86901837 A EP86901837 A EP 86901837A EP 0252084 B1 EP0252084 B1 EP 0252084B1
Authority
EP
European Patent Office
Prior art keywords
manufacturing plant
processing machine
plant according
sheet
magnets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86901837A
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German (de)
English (en)
Other versions
EP0252084A1 (fr
Inventor
Jan Zeleny
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.)
Kleindienst GmbH and Co KG
Original Assignee
Kleindienst GmbH and Co KG
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 Kleindienst GmbH and Co KG filed Critical Kleindienst GmbH and Co KG
Priority to AT86901837T priority Critical patent/ATE42051T1/de
Publication of EP0252084A1 publication Critical patent/EP0252084A1/fr
Application granted granted Critical
Publication of EP0252084B1 publication Critical patent/EP0252084B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B21D43/24—Devices for removing sheets from a stack

Definitions

  • the invention relates to a production system for the automatic processing of sheets stacked in pallets, in which a loading device, a shelf-shaped pallet store and a shelf conveyor are arranged in front of a processing machine.
  • the loading devices are stationary systems that are upstream of the processing machine and that are approached by floor-mounted transport vehicles.
  • some plants e.g. B. those from " workshop and operation", Figure 3, paragraph 3
  • not only individual sheets are changed, but even entire pallets from the trolley to the loading device of the processing machine.
  • the known prior art has the disadvantage that the conveying, separating and loading processes always have to be carried out one after the other and thus overall take a relatively long time. This also requires time-consuming adjustment processes when positioning the often multi-dimensionally movable transport trolleys relative to the loading stations. The return of the fully or partially emptied pallets transferred to the loading device also poses a problem.
  • the object of the invention is to design automatic production systems in such a way that the metal sheets can be fed to the processing machines more quickly and in a simpler manner.
  • the invention provides, according to claim 1, to couple the rack conveyor and the separating and loading device in one device.
  • This enables a time overlap of the individual processes and thus a reduction in the set-up times when changing the workpiece.
  • the shelf conveyor device guided on the pallet store can be positioned particularly easily and quickly in relation to both the pallet store and the processing machine.
  • the pallet store is supplied with new loaded pallets from the other side and disposed of from empty pallets.
  • the pallet store also functions as a time-saving intermediate or buffer store in front of a large central warehouse.
  • the pallet store is preferably constructed like a tower, but can also consist of several columns.
  • the separating and loading device has vertically and horizontally movably guided suction heads which lift the uppermost sheet in the stack and feed it to the processing machine.
  • the conveyor on the side facing the processing machine has a swiveling sheet-metal support table with slide-promoting elements, on which the top sheet in each case is moved forward until the table can be swiveled into the processing machine automatically by pivoting the table.
  • magnets are arranged on both sides next to the stack near its corners facing the processing machine, in such a way that the plus and minus poles are held at a distance above one another in a magnet holder and face the stack.
  • the magnets spread out the sheets in the stack, the steel sheets shifting relative to one another along the conveying direction, in such a way that the top sheet shifts the farthest in the rearward direction from the stack originally formed.
  • the suction heads exert a downward movement on the rear sheet metal area before the feed movement for inserting the top sheet into the processing machine takes place.
  • the invention proposes to provide the suction heads with a vertically acting vibration drive. It has been found that under this repeated vertical impulse load, the sheets are loosened from one another, i. H. a decrease in their adhesion takes place.
  • a preferred exemplary embodiment of the invention additionally provides for the arrangement of a measuring device for sheet thicknesses in the transition region between the conveying device and the processing machine, it being particularly advisable to design this measuring device in the form of an ultrasound measuring device.
  • a measuring device has the property of determining differences in the thickness of sheet metal and even measuring air layers between sheet metal layers.
  • FIG. 1 symbolically shows a processing machine (1) which can be designed, for example, in the form of a punch, scissors, press or the like for sheet metal processing.
  • a feed plane (2) for the workpieces to be machined is arranged upstream of this processing machine (1).
  • it is a table with locally arranged sliding elements on which the workpiece, in particular a sheet metal, can be moved forward with little friction.
  • the output level (3) is provided in the exemplary embodiment behind the processing machine (1). It can also be arranged on the side of this processing machine (1).
  • a pallet store (4) in the form of a high rack, in the compartments (5) of which pallets (6) with sheet metal stacks (7) arranged thereon are inserted in any way.
  • the space (8) between this pallet store (4) and the processing machine (1) is occupied by a conveyor (9) which can be moved along the height (19) of the pallet store (4). In this way, the possibility is given that the conveyor (9) can remove a pallet (6) from any compartment (5) of the pallet store (4) or insert it into this compartment.
  • the conveying device (9) has a pallet changing device (10) (which is only shown symbolically because it is known in high-bay racks) and a separating and loading device (11), which will be described in detail later.
  • the conveying device (9) should be able to be advanced a certain distance in the lifting direction (19) in order to pick up or deliver a pallet (6) from the pallet store (4) .
  • the pallet changing device (10) is a component of the conveyor (9). In variants, however, it can also be arranged on the pallet store (4). Since they are known in principle, no constructive representation is required.
  • Hang pallet changing devices or the like which in turn ensure that sheet metal stacks (7) can be moved along the guides (12, 14). It is provided, for example, that empty pallets (6) are moved along the conveying direction (17) with the aid of a driving device (27) to a loading station, where they are loaded with the sheet metal stacks (7) according to the device (12-15).
  • This driving apparatus (27) can also be a lifting table Removing g erüstet, to bring the pallets (6) in the individual compartments (5).
  • a spreading arrangement (18) in the form of magnets is also shown symbolically in FIG.
  • These magnets (18) have the task of spreading the sheets of the sheet stack (7) apart when excited.
  • the individual magnet (18) has positive and negative poles arranged one above the other and at a distance from one another on the side facing the stack (7). This is intended to achieve a magnetic flux between the poles of the magnets (18), which leads to the spreading of the sheets.
  • the magnets are permanent, they must be arranged so that they can move. These can be pivoted, for example, along a horizontal axis which extends parallel to the conveying direction (17) in order to reach an ineffective position. If the sheets from the stack (7) are to be separated, the magnets (18) must, however, be moved into the position according to FIG. 1. The same effect can be brought about by linear movements of the magnets (18), for example in the vertical direction. In addition, it is possible to provide switchable electromagnets and to bring about the effect by switching.
  • FIG. 2 shows, movements in different directions are assigned to the individual suction heads (20).
  • the example shows, on the suction head (20), swivel-mounted suction plates (21) via the joint (22), which have the task of following the inclination of the top sheet in the sheet stack (7) and nevertheless producing an adhesive effect on this sheet.
  • Dash-dot lines in Figure 2 on the right and left side of the conveyor (9) positions with different positions of the suction plate (21) are provided.
  • This sheet support table (23) On the side of the conveyor (9) facing the processing machine (1) there is a sheet-metal support table (23) which has sliding-promoting elements (24) on its upper side.
  • This sheet support table (23) is pivotally mounted about a joint (25) which is located above the intake plane (2) of the processing machine (1).
  • This table (23) can be moved around the joint (25) by a swivel drive (26).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Usinage automatique de tôles, placées en piles (7) sur des palettes (6) et amenées à un dépôt de palettes (4) ayant la forme d'une étagère haute desservant chaque machine d'usinage (1). Entre ce dépôt de palettes (4) et la machine d'usinage est agencé un transporteur (9) verticalement mobile qui y prend une palette (6) chargée d'une pile (7) de tôles ou qui y retourne une palette vide (6). Ce transporteur (9) comprend un dispositif séparateur (11), ayant par exemple la forme de têtes aspirantes, qui soulèvent la tôle en haut de la pile, la posent sur une table de support (23) de tôles et l'amènent de celle-ci à la machine d'usinage. Afin de faciliter la séparation des tôles, des aimants (18) sont agencés de façon à écarter les unes des autres les parties antérieures des tôles.

Claims (10)

1. Installation de fabrication pour l'usinage automatique de tôles empilées sur des palettes (6), dans laquelle un dispositif de chargement (11 ), un magasin à palettes (4) en forme de rayonnage et un transstockeur (9) sont installés en amont d'une machine d'usinage (1 ), caractérisé par le fait que le magasin à palettes (4) est disposé directement en amont de la machine d'usinage (1 ) et l'espace intercalaire (8) est comblé par le transstockeur (9), qui est guidé de manière à être déplaçable verticalement le long du magasin à palettes (4) et comporte un dispositif (3) d'échange de palettes ainsi qu'un dispositif de séparation et de chargement (11) servant à introduire automatiquement des tôles individuelles dans la machine d'usinage (1).
2. Installation de fabrication suivant la revendication 1, caractérisée par le fait que le dispositif de séparation et de chargement (11 ) comporte des têtes aspirantes (20) guidées de manière à être déplaçables verticalement et horizontalement et agissant sur la surface des tôles.
3. Installation de fabrication suivant la revendication 1, caractérisée par le fait que le trans- . stockeur (9) comporte, sur le côté tourné vers la machine d'usinage (1 ), une table (23) de support des tôles, qui possède des éléments (24) favorisant le glissement et dont le plan de support est situé au-dessus du plan d'entrée (2) de la machine d'usinage (1 ), lorsque le transstockeur (9) est dans la position de transfert, et est réalisée de manière que sa position soit modifiable, en vue du raccordement à ce plan d'entrée (2).
4. Installation de fabrication suivant la revendication 3, caractérisée par le fait que la table (23) de support des tôles est montée dans le transstockeur (9) de manière à pouvoir pivoter autour d'un axe (25) situé au-dessus du plan d'entrée (2), et est équipée d'un dispositif de basculement (26).
5. Installation de fabrication suivant la revendication 1 ou l'une des suivantes, caractérisée par le fait que des aimants (18) sont disposés sur le dispositif de séparation et de chargement (11 ) des deux côtés près de la pile (7), à proximité des coins de cette dernière, tournés vers la machine d'usinage (1 ), de telle sorte que le pôle positif et le pôle négatif sont maintenus à distance l'un au-dessus de l'autre dans un porte-aimants et sont tournés vers la pile (7).
6. Installation de fabrication suivant la revendication 5, caractérisée par le fait que les aimants (18) sont réalisés sous la forme d'aimants permanents et peuvent être déplacés et notamment basculés depuis une position inactive dans la position active.
7. Installation de fabrication suivant les revendications 2 et 6, caractérisée par le fait que les aimants (18) sont accouplés aux têtes aspirantes (20) de telle sorte que lorsque les aimants (18) sont actifs, les têtes aspirantes (20) sont amenées dans leur position arrière et abaissées au point qu'elles exercent une force de pression sur l'extrémité arrière de la tôle supérieure.
8. Installation de fabrication suivant la revendication 7, caractérisée par le fait que les têtes aspirantes (20) comportent des ventouses (21 ), qui sont montées de façon articulées sur les têtes aspirantes.
9. Installation de fabrication suivant la revendication 1 ou l'une des suivantes, caractérisée par le fait que les têtes aspirantes (20) agissant sur la surface des tôles possèdent un dispositif d'entraînement en vibrations agissant verticalement.
10. Installation de fabrication suivant la revendication 1 ou l'une des suivantes, caractérisée par le fait qu'un dispositif de mesure des épaisseurs des tôles, réalisé notamment sous la forme d'un appareil de mesure à ultrasons, est disposé dans la zone de transition entre le convoyeur (9) et la machine d'usinage (1).
EP86901837A 1985-03-13 1986-02-27 Systeme de fabrication pour l'usinage automatique de pieces metalliques a usiner Expired EP0252084B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86901837T ATE42051T1 (de) 1985-03-13 1986-02-27 Fertigungssystem fuer die automatische bearbeitung metallischer werkstuecke.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853509006 DE3509006A1 (de) 1985-03-13 1985-03-13 Fertigungssystem fuer die automatische bearbeitung metallischer werkstuecke
DE3509006 1985-03-13

Publications (2)

Publication Number Publication Date
EP0252084A1 EP0252084A1 (fr) 1988-01-13
EP0252084B1 true EP0252084B1 (fr) 1989-04-12

Family

ID=6265095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901837A Expired EP0252084B1 (fr) 1985-03-13 1986-02-27 Systeme de fabrication pour l'usinage automatique de pieces metalliques a usiner

Country Status (4)

Country Link
US (1) US4775277A (fr)
EP (1) EP0252084B1 (fr)
DE (1) DE3509006A1 (fr)
WO (1) WO1986005422A1 (fr)

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GB2211002B (en) * 1987-12-15 1992-01-08 Amada Co Ltd Device and method for controlling a manipulator for a plate bending machine
SE505062C2 (sv) * 1989-06-06 1997-06-16 Amada Co Ltd Sätt och anordning för in- och utmatning av arbetsstycken vid en plåtbearbetningsmaskin
DE58900878D1 (de) * 1989-10-25 1992-04-02 Dieter Weiss Palettenwechsler fuer einen linearen horizontalfoerderer.
EP0511508A1 (fr) * 1991-04-03 1992-11-04 Kiwa Giken Kabushiki Kaisha Système à usinage par laser
IT1250501B (it) * 1991-10-01 1995-04-08 Comau Spa Unita' e metodo per l'alimentazione di semilavorati ad una macchina di formatura, in particolare ad una pressa.
DE4201475A1 (de) * 1992-01-21 1993-07-22 Hubertus Dipl Ing Hein Etagenabluefter"- sortier- und pufferfaehige vorrichtung fuer das ablueften und die trocknung von plattenfoermigen erzeugnissen nach dickschichtigem lackauftrag
US5813826A (en) * 1997-02-21 1998-09-29 Martain Family Trust Bottom sheet dispenser for load forming machinery
DE29804850U1 (de) * 1998-03-18 1999-08-26 Kuka Schweissanlagen Gmbh Bearbeitungsanlage
WO2000041848A1 (fr) 1999-01-11 2000-07-20 Amada Company, Limited Machine a travailler les toles
US6394744B1 (en) 1999-06-22 2002-05-28 Sparta Lift, L.L.C. Stacking machine for part trays
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US7472737B1 (en) * 2003-01-15 2009-01-06 Leannoux Properties Ag L.L.C. Adjustable micro device feeder
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CN105109960B (zh) * 2015-08-03 2017-12-19 亿和精密工业（苏州）有限公司 进料型单工位上料料架
DE102016108419B4 (de) * 2016-05-06 2018-02-15 Manz Ag Verfahren zur sortenreinen Ablage von Bauteilen sowie Sortiervorrichtung
CN111300119A (zh) * 2020-03-14 2020-06-19 林秋红 一种钣金开料用的自动上料装置
CN113911750B (zh) * 2021-11-19 2023-09-22 博众精工科技股份有限公司 一种载盘分盘运料机

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Also Published As

Publication number Publication date
DE3509006A1 (de) 1986-09-25
EP0252084A1 (fr) 1988-01-13
DE3509006C2 (fr) 1991-05-08
US4775277A (en) 1988-10-04
WO1986005422A1 (fr) 1986-09-25

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