EP3351313B1 - Procédé et dispositif de fluotournage - Google Patents

Procédé et dispositif de fluotournage Download PDF

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Publication number
EP3351313B1
EP3351313B1 EP17151935.8A EP17151935A EP3351313B1 EP 3351313 B1 EP3351313 B1 EP 3351313B1 EP 17151935 A EP17151935 A EP 17151935A EP 3351313 B1 EP3351313 B1 EP 3351313B1
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EP
European Patent Office
Prior art keywords
roller
workpiece
support
rotation
clamping
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
EP17151935.8A
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German (de)
English (en)
Other versions
EP3351313A1 (fr
Inventor
Benedikt Nillies
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.)
Leifeld Metal Spinning GmbH
Original Assignee
Leifeld Metal Spinning 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
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Application filed by Leifeld Metal Spinning GmbH filed Critical Leifeld Metal Spinning GmbH
Priority to EP17151935.8A priority Critical patent/EP3351313B1/fr
Priority to EP20159889.3A priority patent/EP3682981B1/fr
Priority to ES17151935T priority patent/ES2789473T3/es
Priority to KR1020197021598A priority patent/KR102281547B1/ko
Priority to US16/476,013 priority patent/US11565300B2/en
Priority to CN201780084022.2A priority patent/CN110312579B/zh
Priority to PCT/EP2017/076444 priority patent/WO2018133959A1/fr
Priority to JP2019559160A priority patent/JP2020507478A/ja
Publication of EP3351313A1 publication Critical patent/EP3351313A1/fr
Publication of EP3351313B1 publication Critical patent/EP3351313B1/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/18—Spinning using tools guided to produce the required profile
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/30—Making other particular articles wheels or the like wheel rims

Definitions

  • the method according to the invention is characterized in that, by means of a CNC control, the inner support with the inner roller and the outer support with the outer roller are moved radially and axially to one another individually when the jacket region is formed, with a defined wall thickness profile with different wall thicknesses between the at least one on the jacket region Outer role and the at least one inner role is formed.
  • a basic idea of the invention is to depart from a predetermined pressing tool, which specifies a negative shape of an inner contour of the workpiece, and to provide at least one inner roller for shaping the inner contour.
  • the inner roller is not moved in a straight line parallel to the outer roller, but the inner roller is mounted on an inner support which can be moved axially and radially to the axis of rotation independently of the outer support. In this way, an almost unlimited variety of shapes can be created without having to convert a pressing tool.
  • the workpiece is clamped on the spindle, with a free space in a central area remaining radially inside the jacket area.
  • This jacket area is designed so large that at least one inner roller can be delivered to an inner contour of the jacket area.
  • the workpiece is preferably clamped on one side on the spindle, for example by means of a three- or multi-jaw chuck.
  • Other clamping mechanisms can be used, for example also with an axial clamping element or counter-holding element, which is attached to or through a central opening on a hub area of the workpiece.
  • the clamping and / or centering aid is removed from the workpiece after the pressure rolling. This can be done in particular by simple machining. This can also be done with a separate machine, such as a lathe, or the pressure rolling device itself with an additional cutting tool.
  • an internal clamping device is provided, by which a hub area of the workpiece is covered. This is because the deformation of the wheel preferably begins in the immediate vicinity of a radially running hub area of the workpiece. These can be a star or rim spokes on certain vehicle rims.
  • the clamping device has a relatively large, plate-like clamping surface, by means of which the specially designed and preformed hub area is covered and protected.
  • the side rim flanges can also be shaped in a corresponding manner.
  • Other and different inner rollers with a modified and adapted outer contour can also be used to form the rim flanges.
  • contoured outer rollers to form the rim flanges. Thanks to the freely programmable interior and External rollers also make it possible to gradually shape the rim contour, so that higher work hardening and / or structural changes are brought about in specific areas of the rim. This enables increases in stability and / or weight reductions on the workpiece.
  • a clamping device for clamping the workpiece is arranged on the spindle, with a free space in a central region remaining radially inside the jacket region of the workpiece.
  • the at least one inner support can be moved into this free space, so that an inner contour of the jacket region of the workpiece can be formed by the at least one inner roller.
  • An ejector in particular an axially adjustable ejector, can be used to eject from the tensioning device.
  • the ejection is preferably carried out as a controlled movement.
  • the device for pressure rolling is preferably designed as a vertical machine with a hanging or alternatively upright spindle, so that workpiece centering is made easier.
  • the counter holder of the clamping device can also take on the function of loading and unloading.
  • the inner and / or outer supports are preferably designed as independently controllable supports that are only synchronized electrically.
  • the outer roller is preferably set at an angle of 0 to 15 ° to the axis of rotation during the inner rollers are preferably set from 0 to 45 ° and participate in the forming over a preferably significantly larger roller radius.
  • the outer and inner rollers are preferably fed via two linear cross supports. Alternatively, the use of at least two inner rollers on the cross support can be dispensed with by simultaneously moving or starting the rollers using a wedge slide.
  • a device 10 according to the invention for pressure rolling Fig. 1 has a spindle 12 driven in rotation via a drive, not shown.
  • the spindle 12 rotates about a central axis of rotation 13, which runs horizontally in the illustrated example.
  • the spindle 12 can be directed vertically with the axis of rotation 13, a workpiece 5 then resting on the spindle 12 or being clamped on an overhead spindle 12 in the case of a hanging spindle arrangement.
  • a workpiece 5 can be connected to the spindle 12 in a detachable and rotationally fixed manner and centrally to the axis of rotation 13.
  • the workpiece 5 is a preform of a vehicle wheel in the illustrated embodiment.
  • the preform is preferably made from a metal material by casting or forging manufactured.
  • the rotationally symmetrical workpiece 5 has an essentially radially running hub area 6 with a central opening 4 and an essentially axially extending drum-shaped jacket area 7. With the clamping claws 16, the workpiece 5 is fastened on one side on its outer circumference to the spindle 12.
  • the spindle 12 is set in rotation with the workpiece 5.
  • three outer rollers 20, of which only one outer roller 20 is shown are fed radially to the outside of the jacket region 7 of the workpiece 5 by means of external supports, not shown.
  • an inner support 40 with three inner rollers 30, which are offset by 120 ° to one another, is fed into a central free space within the drum-shaped jacket region 7.
  • the inner rollers 30 are initially placed adjacent to the radial hub area 6 on an inside of the jacket area 7.
  • the inner support 40 has a central and conical center support 42, on the outside of which linear guides 44 for slides 46 are arranged.
  • Roll holders 48 are pivotably mounted on the linearly movable carriage 46.
  • the inner rollers 30 are rotatably supported in the pot-like roller holders 48 via roller bearings.
  • the inner rollers 30 can be pivoted via the pivotable roller holder 48 during the pressure rolling process and can be moved radially and / or axially by means of the slide 46 and the inner support 40.
  • the outer rollers 20 can be pivoted on an external support (not shown) and can be mounted so that they can move radially and axially.
  • the outer roller 20 and the inner roller 30 are moved via a CNC control and actuators, not shown, based on stored data for shaping the desired workpiece 5 Fig. 2 it can be seen that the jacket region 7 of the workpiece 5 can be formed into a rim bed with a hump 8, which represents a thickening in the wall thickness profile of the jacket region 7.
  • the final-shaped jacket area 7 is elongated relative to the jacket area 7 of the starting workpiece 5 and thinned with respect to the wall thickness. Almost any external contour and an internal contour can be generated with the device 10 according to the invention.
  • the device 10 according to FIG Fig. 3 a modified inner roller 30 with an annular radial projection 32 and an abutment section 34 adjacent in the front region is provided.
  • the radially protruding radial projection 32 on the inner roller 30 can be used to form an inner contour along the inside of a jacket region 7 of the workpiece 5 in cooperation with the radially externally acting outer roller 20.
  • the front abutment portion 34 can be used to form a rim flange at the free end of the molded rim well, as shown in FIG Fig. 4 is shown.
  • the abutment section 34 can in particular be designed as a negative shape of the inner contour of the rim flange and for absorbing the forming forces of the outer roller 20.
  • different outer rollers 20 with an adapted outer contour can be delivered to the jacket area 7.
  • an outer roller 20 can have an outer contour corresponding to the desired shape of the rim flange to be shaped.
  • this process enables repeated, step-by-step pressure rolling until the final end geometry or complete structural change has been achieved.
  • the process can also be used for the cold forming of aluminum forged wheels, as well as for steel wheels.

Claims (14)

  1. Procédé de fluotournage, en particulier d'une roue de véhicule,
    dans lequel une pièce (5) est amenée en rotation autour d'un axe de rotation (13) au moyen d'une broche (12) et au moins un rouleau extérieur (20) est rapproché d'un côté extérieur de la pièce (5) au moyen d'un support extérieur,
    dans lequel une zone enveloppante (7) de la pièce (5) s'étendant de manière axiale est façonnée moyennant un amincissement de matériau,
    - dans lequel au moins un rouleau intérieur (30) est rapproché d'un côté intérieur de la pièce (5) au moyen d'un support intérieur (40), lequel peut être déplacé indépendamment du support extérieur de manière axiale et de manière radiale par rapport à l'axe de rotation (13),
    - au moins un rouleau extérieur (20) est rapproché, lequel est monté de manière à pouvoir tourner au niveau d'un support extérieur, et
    - une fente de façonnage est formée entre le rouleau extérieur (20) et un rouleau intérieur (30) associé,
    caractérisé en ce
    que le support intérieur (40) avec le rouleau intérieur (30) et le support extérieur avec le rouleau extérieur (20) sont déplacés individuellement l'un par rapport à l'autre de manière radiale et de manière axiale lors du façonnage de la zone enveloppante (7) au moyen d'une commande CNC, dans lequel un profil d'épaisseur de paroi défini avec différentes épaisseurs de paroi entre l'au moins un rouleau extérieur (20) et l'au moins un rouleau intérieur (30) est formé au niveau de la zone enveloppante (7).
  2. Procédé selon la revendication 1,
    caractérisé en ce
    que l'au moins un rouleau intérieur (30) et/ou l'au moins un rouleau extérieur (20) sont placés selon un angle par rapport à l'axe de rotation (13).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce
    que la pièce (5) est enserrée au niveau de la broche (12), dans lequel un espace libre subsiste dans une zone centrale radialement à l'intérieur de la zone enveloppante (7).
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce
    qu'un serrage de la pièce (5) est effectué au niveau d'une zone partielle de la périphérie extérieure.
  5. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce
    que la pièce (5) est pourvue avant le fluotournage d'un système d'aide au serrage et/ou au centrage.
  6. Procédé selon la revendication 5,
    caractérisé en ce
    que le système d'aide au serrage et/ou au centrage est retiré de la pièce (5) après le fluotournage.
  7. Procédé selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce
    qu'est prévu un système de serrage intérieur (14), par lequel une zone de moyeu (6) de la pièce (5) est recouverte.
  8. Procédé selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce
    que la zone enveloppante (7) est réalisée en tant qu'une base de jante d'une roue de véhicule avec au moins un bourrelet (8), lequel est formé en tant qu'un épaississement dans le profil d'épaisseur de paroi.
  9. Procédé selon la revendication 8,
    caractérisé en ce
    que le rouleau intérieur (30) et le rouleau extérieur (20) sont déplacés simultanément de manière relative l'un par rapport à l'autre dans une direction radiale et dans une direction axiale pour former un bourrelet (8) et/ou une zone de corne.
  10. Dispositif de fluotournage selon un procédé selon l'une quelconque des revendications 1 à 9, avec
    - une broche (12), laquelle peut être entraînée en rotation autour d'un axe de rotation (13) par l'intermédiaire d'un entraînement et est réalisée pour maintenir une pièce (5),
    - au moins un rouleau extérieur (20), lequel est monté de manière à pouvoir tourner au niveau d'un support extérieur, lequel peut être déplacé axialement et radialement de manière relative par rapport à l'axe de rotation (13) pour être rapproché de la pièce (5),
    - au moins un rouleau intérieur (30), lequel peut être rapproché d'un côté intérieur de la pièce (5) en vis-à-vis par rapport au rouleau extérieur (20), et
    - l'au moins un rouleau intérieur (30) étant monté de manière à pouvoir tourner au niveau d'un support intérieur (40), lequel est monté de manière à pouvoir être déplacé axialement et radialement par rapport à l'axe de rotation (13) indépendamment du support extérieur,
    - une commande CNC pour déplacer l'au moins un support intérieur (40) avec le rouleau intérieur (30) et l'au moins un support extérieur avec le rouleau extérieur (20),
    caractérisé en ce
    que la commande CNC est réalisée pour déplacer individuellement l'au moins un support intérieur (40) avec le rouleau intérieur (30) et l'au moins un support extérieur avec le rouleau extérieur (20) lors du fluotournage d'une pièce (5), en particulier d'une roue de véhicule, selon un procédé selon l'une quelconque des revendications 1 à 9, dans lequel l'au moins un rouleau intérieur (30) et l'au moins un rouleau extérieur (20) associé peuvent être déplacés radialement et axialement l'un par rapport à l'autre lors du façonnage de la zone enveloppante (7).
  11. Dispositif selon la revendication 10,
    caractérisé en ce
    que plusieurs rouleaux intérieurs (30) et rouleaux extérieurs (20) sont prévus, dans lequel chaque rouleau intérieur (30) est associé à un rouleau extérieur (20).
  12. Dispositif selon la revendication 10 ou 11,
    caractérisé en ce
    qu'un système de serrage (14) servant à serrer la pièce (5) est disposé au niveau de la broche (12), dans lequel un espace libre subsiste dans une zone centrale radialement à l'intérieur de la zone enveloppante (7) de la pièce (5).
  13. Dispositif selon l'une quelconque des revendications 10 à 12,
    caractérisé en ce
    qu'est prévu un système de commande avec une mémoire de données, dans laquelle des jeux de données pour déplacer le rouleau intérieur (30) et le rouleau extérieur (20) sont enregistrés pour différentes formes de pièce.
  14. Dispositif selon l'une quelconque des revendications 10 à 13,
    caractérisé en ce
    qu'au moins un des rouleaux (20, 30) est pourvu d'un entraînement auxiliaire servant à entraîner en rotation le rouleau (20, 30).
EP17151935.8A 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage Active EP3351313B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP17151935.8A EP3351313B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage
EP20159889.3A EP3682981B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage
ES17151935T ES2789473T3 (es) 2017-01-18 2017-01-18 Procedimiento y dispositivo para la laminación por presión
US16/476,013 US11565300B2 (en) 2017-01-18 2017-10-17 Method and device for spin forming
KR1020197021598A KR102281547B1 (ko) 2017-01-18 2017-10-17 스핀 포밍 방법 및 장치
CN201780084022.2A CN110312579B (zh) 2017-01-18 2017-10-17 旋压成型的方法和设备
PCT/EP2017/076444 WO2018133959A1 (fr) 2017-01-18 2017-10-17 Procédé et dispositif de fluotournage
JP2019559160A JP2020507478A (ja) 2017-01-18 2017-10-17 スピン形成のための方法およびデバイス

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17151935.8A EP3351313B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP20159889.3A Division EP3682981B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage
EP20159889.3A Division-Into EP3682981B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage

Publications (2)

Publication Number Publication Date
EP3351313A1 EP3351313A1 (fr) 2018-07-25
EP3351313B1 true EP3351313B1 (fr) 2020-04-15

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EP20159889.3A Active EP3682981B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage
EP17151935.8A Active EP3351313B1 (fr) 2017-01-18 2017-01-18 Procédé et dispositif de fluotournage

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Country Status (7)

Country Link
US (1) US11565300B2 (fr)
EP (2) EP3682981B1 (fr)
JP (1) JP2020507478A (fr)
KR (1) KR102281547B1 (fr)
CN (1) CN110312579B (fr)
ES (1) ES2789473T3 (fr)
WO (1) WO2018133959A1 (fr)

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EP3682981B1 (fr) 2017-01-18 2023-06-07 Leifeld Metal Spinning GmbH Procédé et dispositif de fluotournage
DE102017112857A1 (de) * 2017-06-12 2018-12-13 WF Maschinenbau und Blechformtechnik GmbH & Co. KG Verfahren zur Herstellung eines rotationssymmetrischen Formkörpers sowie Vorrichtung zur Durchführung des Verfahrens
DE102018124997A1 (de) * 2017-10-16 2019-04-18 Ssb-Maschinenbau Gmbh Herstellungsvorrichtung von Leichtmetallkraftfahrzeugfelgen
CN112839750B (zh) 2018-09-27 2024-04-05 伊诺-斯宾有限责任公司 阶梯直径圆筒的多轴辊轧成形
KR102268716B1 (ko) * 2020-02-06 2021-06-25 주식회사 새한산업 자동차의 차체 휠하우스 제조장치
CN112058937A (zh) * 2020-07-29 2020-12-11 宁波大学 一种长空心管内壁减薄成形方法
DE102020133114A1 (de) 2020-12-11 2022-06-15 Vibracoustic Se Rotationsfähiges Bauteil, Werkzeug und Verfahren zur Herstellung eines rotationsfähigen Bauteils
DE202021101035U1 (de) 2021-03-02 2021-03-10 Leifeld Metal Spinning Ag Drückwalzmaschine
WO2023284989A1 (fr) 2021-07-16 2023-01-19 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg Procédé et dispositif de laminage par compression d'une roue de véhicule
CN114603027B (zh) * 2022-03-09 2023-03-31 西北工业大学 一种带内筋筒形件的多级旋轮式随动约束旋压成形方法

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US11565300B2 (en) 2023-01-31
ES2789473T3 (es) 2020-10-26
KR20190108116A (ko) 2019-09-23
EP3682981A1 (fr) 2020-07-22
EP3351313A1 (fr) 2018-07-25
CN110312579B (zh) 2021-10-08
US20190374991A1 (en) 2019-12-12
EP3682981B1 (fr) 2023-06-07
CN110312579A (zh) 2019-10-08
JP2020507478A (ja) 2020-03-12

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