EP2432603A1 - Dispositif de moulage d'une pièce - Google Patents

Dispositif de moulage d'une pièce

Info

Publication number
EP2432603A1
EP2432603A1 EP11726663A EP11726663A EP2432603A1 EP 2432603 A1 EP2432603 A1 EP 2432603A1 EP 11726663 A EP11726663 A EP 11726663A EP 11726663 A EP11726663 A EP 11726663A EP 2432603 A1 EP2432603 A1 EP 2432603A1
Authority
EP
European Patent Office
Prior art keywords
slide
driver
slider
slides
workpiece
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Withdrawn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
EP11726663A
Other languages
German (de)
English (en)
Inventor
Walter Hommel
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.)
GIW Verwaltungs- und Vertriebs GmbH
Original Assignee
LAEPPLE WERKZEUGBAU GmbH
Lapple Werkzeugbau 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 LAEPPLE WERKZEUGBAU GmbH, Lapple Werkzeugbau GmbH filed Critical LAEPPLE WERKZEUGBAU GmbH
Publication of EP2432603A1 publication Critical patent/EP2432603A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process

Definitions

  • the invention relates to a device for molding a workpiece, in particular for molding a vehicle sheet metal part, preferably a motor vehicle outer shell part, comprising a slider assembly for actuating a ZiehV rempligewerkmaschines, wherein the slider assembly comprises a driver, a driven by the driver slider and a tool carried by the slider includes.
  • this is generally a device for forming a workpiece, which is in particular about the drawing of a sheet metal part.
  • the related art is described using the example of a fender made of sheet metal for a car.
  • the fender of a passenger car is a so-called outer skin part, on the outer surfaces of which no visual impairments may occur. This applies in particular to the painted state of such a part.
  • the two stages are made in a single operation, which ensures that the tool used in each case, more precisely, the mold bar carried by the slider, uniformly strikes the plate in each stage. Accordingly - for the production of the two stages - two work slides for deforming and two feeders for demolding or discharging the molded workpiece required.
  • the present invention has the object, a device for molding a tool, in particular for molding a vehicle sheet metal part, preferably a motor vehicle outer skin part, such and further, that with simple means, compared to the prior art reduced Apparative effort, flawless sheet metal parts are malleable, especially while avoiding visible defects on the surface.
  • the generic device is characterized in that the slide assembly is designed for at least two-stage deformation of the workpiece in one operation and to this includes the combination of two drivers, which act in sequence on the slider.
  • the slide assembly is designed for at least two-stage deformation of the workpiece in a single operation, including the structural combination of two drivers is provided, which act in a row on the slide or the.
  • a slider principle is realized according to the invention, which can be produced without surface problems on the example of the previously discussed fender, the two stages required to the hood, in a single operation.
  • This is due to the fact that with the slider assembly a two-stage deformation of the workpiece in one operation is possible, namely on the basis of the combination of two drivers in the same device. Consequently can be saved with the solution according to the invention ever a work slide and a filling slide, possibly even a complete tool.
  • the slider assembly comprises the combination of two slides, the slides each carrying a tool. These are usually so-called moldings, which are brought to the direct deformation of the sheet in contact with the sheet.
  • the slides can each be driven by one of the drivers. It is also conceivable that the slide - driven in common - for example, in a first step - by a driver. It is also possible to drive the slides either by one or the other of the two drivers. Any assignments can be realized on the basis of a suitable geometry of the respective contact surfaces (driver surfaces).
  • the drivers may have differently inclined and / or positioned driver surfaces.
  • the driver surfaces fit in any case to appropriately aligned slide surfaces, possibly with the interposition of so-called driver plates.
  • stroke start and stroke end and the speed of the slide can be defined. This will be discussed later.
  • the two slides next to each other or above / below each other for example, also partially interleaved or interlocking executed.
  • the two slides are arranged one inside the other, so that one of the slides runs in the other slide.
  • the inner slider runs almost coaxially in the outer slide, in any case is carried by the outer slide and thereby independent of the outer slide - in this - is movable.
  • the sliders could be arranged to each other such that the inner slider is moved together with the outer slider over the first driver until the inner slider is acted upon by the second driver. It is conceivable that by applying the inner slider this slower or faster than the outer slide or with direction reversal, i. contrary to the original direction of movement, is running. It is also conceivable that the outer slide runs in a stop, so that thereafter only the other - inner - slider continues to run, namely to make a final deformation to the final dimensions. The tools or moldings associated with the slides thereby come into direct contact with the workpiece or sheet metal.
  • the slides have different speeds and / or a different stroke start and / or a different stroke end due to different driver slopes and / or arrangement / positioning of the driver slopes.
  • the entire motion characteristic can be defined by the arrangement of the drivers or driver slopes and by their orientation.
  • the tools are designed as so-called moldings. It is also conceivable that at least one of the tools, each associated with a slide - designed as a cutting bar, punch, punch, etc. Thus, in the inventive manner, the combination of drawing with cutting, punching or punching is conceivable, in the context of a two-stage operation by means of the device according to the invention.
  • FIG. 1 is a schematic side view, cut, a conventional - generic-forming device for molding a fender
  • Fig. 2 to 6 in schematic views, partially in section, the workflow of a first embodiment of a device according to the invention, also using the example of a towing fender, in schematic views, partially cut, the workflow of a second embodiment of a device according to the invention, where there is one of the slide in the course of the work progress undergoes a reversal of motion, in a schematic view, partially cut, the workflow of a third embodiment of a device according to the invention, where there one of the slide moves against a stop and in a schematic view, partially cut, the workflow of a fourth embodiment of an inventive Device, where it comes towards the end of the work progress associated with a slider cutting bar or a punch.
  • Fig. 1 shows a schematic sectional view of a known from practice apparatus for forming a workpiece 1, wherein it is the concrete in the concrete to a motor vehicle fender.
  • the device comprises a slider arrangement 2 to which a driver 3 and a slider 4 driven by the driver 3 belong. From the slider 4, the tool 5 and the mold bar is supported, which serves for the immediate deformation of the workpiece 1.
  • Fig. 1 clearly shows that the driver 3 is equipped with a special driver slope 6 and the slider 4 with a correspondingly matching slide slope 7.
  • the driver slope 6 and the slide slope 7 are coordinated, thus fit together.
  • Reference numeral 8 denotes the working direction of the driver 3 via an arrow.
  • Arrow 9 indicates the working direction of the slide 4.
  • the arrangement of driver 3 and slide 4 make it clear that this is a typical wedge slide arrangement.
  • the slider 4 comprises a pressure device 10 in the form of a compression spring. This acts directly or indirectly on a slide-down holder 11, which serves for holding or clamping an outer edge region (a so-called drawing edge) of the workpiece 1 to be deformed.
  • a filling slide 12 is provided, which in turn cooperates with a holding-down device 13. In between is the workpiece 1 or the fender to be deformed. With a further arrow 14, the working direction of the filling slide 12 is characterized u.a. for discharging the finished workpiece 1, without damaging it.
  • FIGS 2 to 10 show embodiments of a device according to the invention, in which the problems occurring in the prior art, discussed in the general description part problems are largely eliminated.
  • Figures 2 to 6 show the individual workstations of a first embodiment of a device according to the invention, wherein there is designed the slide assembly 2 for two-stage processing or deformation of the workpiece 1 in a single operation.
  • the slider assembly 2 comprises the combination of two Driver 15, 16.
  • the first driver 15 acts directly on the first slider 17.
  • the second driver 16 acts via a driver plate 19 on the second slider 18, wherein the second slider 18 protrudes through the first slider 17, namely slidably disposed therein ,
  • the first slider 17 is a first molding 20 and the second slider 18 is associated with a molding 21.
  • the driver surfaces 22, 23 have different angles, i. different driver slopes, so that can be realized independent of each other operating speeds of the slide 17, 18.
  • the separate drivers 15, 16 allow for offset at the beginning of the stroke.
  • the different driver slopes, due to the respective driver surfaces 22, 23, allow an independent operating speed of the two slides 17, 18.
  • FIG. 3 shows the arrangement according to FIG. 2 in a first work station, according to which the hold-down 13 is seated on the workpiece 1.
  • the workpiece 1 is located between the holding-down device 13 and the filling slide 12.
  • the first driver 15 is seated on the first slide 17. This movement is indicated by three arrows.
  • both slides 17, 18 are moved forward at the same speed by the first driver 15, ie in the direction of the arrow.
  • the slide hold-down device 11 now sits on the drawing edge 24 of the workpiece 1 and clamps it there.
  • Fig. 5 shows the third workstation of the device according to the invention, according to which the first mold bar 20 of the first slider 17, the workpiece 1 has already formed.
  • the second driver 16 now sits on the driver plate 19 and thus moves the second slider 16, and at a faster rate than the first slider 17, forward, ie in the direction of arrow.
  • Fig. 6 shows the fourth workstation of the device according to the invention, wherein there the end position is reached. Due to the different speed, the second slider 18 has formed the two partially deeper levels in the workpiece 1. The second mold bar 21 has moved relative to the first mold bar 20 by the stroke difference 25 between the first slide 17 and the second slide 18 to the front.
  • Figures 7 and 8 show a further embodiment of a device according to the invention, there without concrete application. Ultimately, it depends on the interaction of the individual components of the wedge slide.
  • FIG. 7 shows that the second slider 18, together with the first slider 17, moves forward in the direction of the arrow. At a later time, the second slider 18 is moved backwards via the driver plate 19, " counter to the actual working direction.
  • the two slides 17, 18 are moved forward over the driver surface 26 of the first slider 17 in the working direction. It is a compression spring 27 is provided which has enough force to perform the required work force from the second slider 18. It also ensures that the second slider 18 abuts the stop 28 and is pressed into this.
  • Fig. 8 shows the arrangement in the end position.
  • the driver plate 19 engages the second slider 18 and moves it rearward against the initial working direction, against the pressure of the compression spring 27.
  • the compression spring 27 it is possible to perform the compression spring 27 as a controlled pressure medium, namely to counteract the return of an unwanted deformation of the deformed workpiece 1.
  • a controlled application of a back pressure is here in any case an advantage.
  • Fig. 9 shows another embodiment of a device according to the invention, also without concrete application.
  • the variant shown here basically corresponds to the variant according to FIG. 8, it being possible to drive the second slider 18 against a stop 29. While the first slider 17 continues until the end of the stroke, the second slider 18 has reached the end position.
  • FIG. 10 shows a further embodiment of a device according to the invention, where both slides 17, 18 travel forwards.
  • the first slide 17 stops.
  • the second slider 18 moves on and moves a cutter bar 30 connected to the slide 18 via a holding plate 34 or a punch to the front and cuts or punches the work piece 1 or in a perforated die 33.
  • the first slider 17 is moved forward by a sprung plate 31 and the second slider 18 by the correspondingly formed driver surface of the second driver 16.
  • Both drivers 15, 16 may have the same driver slope.
  • spring elements 32 are designed such that they can completely shape the desired shape.
  • the second slide 18 moves back first.
  • the molding strip 20 of the first slider 17 acts in the sense of a scraper, namely for the cutting / hole work site, so that chip residues or burrs or the like. Are removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

Dispositif de moulage d'une pièce (1), notamment d'une pièce en tôle de véhicule à moteur, de préférence d'une pièce de carrosserie extérieure de véhicule à moteur, ce dispositif comportant un ensemble coulissant (2) pour actionner un outil d'emboutissage/estampage, l'ensemble coulissant (2) comportant un élément moteur (3), un coulisseau (4) entraîné par l'élément moteur (3) et un outil (5) porté par le coulisseau (4). L'invention est caractérisée en ce que l'ensemble coulissant (2) est conçu pour façonner une pièce (1) à au moins deux niveaux en une opération et, à cet effet, comprend deux éléments moteurs (15, 16) combinés qui agissent sur le coulisseau (17 et/ou 18) l'un après l'autre.
EP11726663A 2010-04-27 2011-04-05 Dispositif de moulage d'une pièce Withdrawn EP2432603A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010018534A DE102010018534A1 (de) 2010-04-27 2010-04-27 Vorrichtung zum Formen eines Werkstücks
PCT/DE2011/000360 WO2011134447A1 (fr) 2010-04-27 2011-04-05 Dispositif de moulage d'une pièce

Publications (1)

Publication Number Publication Date
EP2432603A1 true EP2432603A1 (fr) 2012-03-28

Family

ID=44627343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11726663A Withdrawn EP2432603A1 (fr) 2010-04-27 2011-04-05 Dispositif de moulage d'une pièce

Country Status (3)

Country Link
EP (1) EP2432603A1 (fr)
DE (1) DE102010018534A1 (fr)
WO (1) WO2011134447A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012210960B4 (de) 2012-06-27 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Füllschieberanordnung für ein pressengebundenes Blechbearbeitungswerkzeug und pressengebundenes Blechbearbeitungswerkzeug mit solcher Füllschieberanordnung
CN104707903A (zh) * 2015-04-03 2015-06-17 安徽江淮汽车股份有限公司 汽车覆盖件顶盖外板尾部冲压成型工艺及其冲压模具
DE202015106966U1 (de) * 2015-12-21 2016-01-28 Harald Weigelt Keiltrieb
CN108515115A (zh) * 2018-05-16 2018-09-11 无锡惠汕金属制品有限公司 型钢鼓包成型/冲孔复合模
DE102020200690A1 (de) 2020-01-22 2021-07-22 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Umformung eines Blechbauteils sowie ein Kraftfahrzeug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138527A (ja) * 1982-02-12 1983-08-17 Nissan Motor Co Ltd プレス型
JPS60231529A (ja) * 1984-05-02 1985-11-18 Isuzu Motors Ltd 深絞り用工具
JPH01273627A (ja) * 1988-04-25 1989-11-01 Daihatsu Motor Co Ltd プレス型
JP2005329413A (ja) * 2004-05-18 2005-12-02 Toyota Auto Body Co Ltd 複合プレス型
DE102005044951B4 (de) * 2005-09-20 2011-09-15 Fibro Gmbh Schieberanordnung
JP5014069B2 (ja) * 2007-11-06 2012-08-29 株式会社ユアビジネス プレス成形用金型

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011134447A1 *

Also Published As

Publication number Publication date
DE102010018534A1 (de) 2011-10-27
WO2011134447A1 (fr) 2011-11-03

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