EP3278894A1 - Machine destinee a retreindre et procede de deformation pour la fabrication d'une roue - Google Patents

Machine destinee a retreindre et procede de deformation pour la fabrication d'une roue Download PDF

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Publication number
EP3278894A1
EP3278894A1 EP16182396.8A EP16182396A EP3278894A1 EP 3278894 A1 EP3278894 A1 EP 3278894A1 EP 16182396 A EP16182396 A EP 16182396A EP 3278894 A1 EP3278894 A1 EP 3278894A1
Authority
EP
European Patent Office
Prior art keywords
rim
workpiece
chuck
spinning
forming
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.)
Granted
Application number
EP16182396.8A
Other languages
German (de)
English (en)
Other versions
EP3278894B1 (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
Application filed by Leifeld Metal Spinning GmbH filed Critical Leifeld Metal Spinning GmbH
Priority to ES16182396.8T priority Critical patent/ES2686946T3/es
Priority to EP16182396.8A priority patent/EP3278894B1/fr
Priority to JP2019503421A priority patent/JP2019528179A/ja
Priority to PCT/EP2017/066433 priority patent/WO2018024417A1/fr
Priority to CN201780048782.8A priority patent/CN109689242B/zh
Priority to US16/320,448 priority patent/US20200023419A1/en
Publication of EP3278894A1 publication Critical patent/EP3278894A1/fr
Application granted granted Critical
Publication of EP3278894B1 publication Critical patent/EP3278894B1/fr
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Anticipated expiration legal-status Critical

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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
    • B21D22/16—Spinning over shaping mandrels or formers
    • 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 invention relates to a flow-forming machine for producing a wheel, in particular a vehicle wheel, with a rim of a workpiece, with a spinning chuck whose outer side is designed for molding the rim, a counter-feed which is axially movable relative to the spinning chuck, wherein the workpiece on the Driven chuck and / or the counter-chuck is axially clamped, a rotary drive for rotationally driving Drückfutter and counter-chuck with the clamped workpiece and at least one spinning roller, which is deliverable axially and radially to the workpiece for forming the rim, according to the preamble of claim 1.
  • the invention further relates to a forming method for producing a wheel, in particular a vehicle wheel, with a rim of a workpiece, wherein the workpiece is clamped on a spinning chuck whose outer side is designed for molding the rim, and / or a counter-chuck, with a rotary drive the clamped workpiece is set in rotation and at least one spinning roller is delivered axially and radially to the rotating workpiece, wherein the rim is formed, according to the preamble of claim 8.
  • a method for producing a vehicle wheel with drop center rim is known.
  • a drop center rim has a radial indentation in a central region.
  • a multi-part spinning chuck is taught, which must be disassembled after the shaping step.
  • the invention has for its object to provide a flow-forming machine and a forming method for producing a wheel, with which wheels with different dimensions and shapes are particularly efficient to produce.
  • the flow-forming machine is characterized in that the spinning chuck has a sleeve-shaped peripheral element, which is axially movable during forming, and that a control is provided, by means of which when forming the rim, the at least one spinning roller and the peripheral element of the spinning chuck matched to each other are axially movable relative to the workpiece.
  • a basic idea of the invention is to provide a variable spinning chuck during forming or pressure-rolling of the rim of a wheel, which is adjusted or moved during the forming process.
  • a variable, adjustable spinning chuck With such a variable, adjustable spinning chuck, various shapes and dimensions of a drum-shaped rim can be formed in wheel manufacture.
  • the spinning lining preferably has a disk-shaped front element and a sleeve-shaped peripheral element, which can be adjusted axially during forming.
  • the peripheral element can be moved together with the externally applied pressure roller in the same axial direction, so that almost any length of the rim can be formed.
  • the adjustment of the sleeve-shaped peripheral element and the at least one spinning roller via an electronic control may be disc-shaped, with a radial hub already being preformed.
  • the workpiece may be annular, with a hub attached after molding the rim.
  • a preferred embodiment of the invention is that the sleeve-shaped peripheral element is at least partially conical, wherein the peripheral element tapers towards the free end.
  • a conical design of the peripheral element so so different inner diameter for internal support of the externally acting pressure roller are available. This can be created with a very high variety of shapes, an inner contour of the rim of the rim, even undercut areas, such as those provided for a drop-center rim, can be readily formed.
  • the conical peripheral element is moved during the forming along the axis of rotation in both directions.
  • An outer contour of the peripheral element is largely independent of the inner contour of the rim to be formed. The cone must extend only over the largest and smallest diameter, which occur on the inner contour of the rim.
  • a molding area is arranged on a region of the peripheral element, which is designed to form a rim flange on the rim.
  • the molding region has an arcuate contour, so that in this way an inner region of the rim flange to be formed is predetermined.
  • the shape of the rim flange at the edge region of the rim often remains unchanged.
  • the control for relative axial movement of the at least one spinning roller and the forming element is formed, so that the at least one spinning roller first at a first Engages the diameter portion of the conical peripheral element, then acts on a second diameter portion of the peripheral element, which is smaller than the first diameter portion, and then acts on a third diameter portion of the peripheral element, which is greater than the second diameter portion.
  • a corresponding axial adjustment of the conical circumferential element a smaller diameter region corresponding to the spinning roller can be provided for forming a center region of the deep-bed rim.
  • the conical peripheral element is adjusted such that larger diameter regions in the radial direction are opposite the engaged pressure roller, so that overall an axial undercut region for a drop center rim can be produced in a middle region of the rim.
  • the spinning chuck has a base support on which the peripheral element is mounted axially displaceable, and that on a free front of the base support a front element is arranged, wherein a radial hub between the spinning chuck with the front element and the counter-chuck is axially clamped.
  • This also allows a simple change of the sleeve-shaped peripheral element, if it should be necessary for maintenance or diameter or design changes to the wheel to be manufactured.
  • an axial displacement of the peripheral element can take place in any desired manner.
  • at least one adjusting element in particular a setting cylinder or a spindle drive, is provided for the axial displacement of the peripheral element on the base carrier.
  • Actuating cylinders which may be actuated hydraulically or pneumatically, constitute a conventional actuator on conventional flow-forming machines. It is also possible to convert an optionally existing ejector with an axial adjusting movement for displacing the peripheral element. Alternatively, a spindle drive, so a rotary drive can be used in which by a corresponding spindle assembly, the rotational movement is converted into an axial movement.
  • the front element is exchangeably fixed to the base support.
  • the front element can be provided corresponding to the counter-chuck for axial clamping of the workpiece on the radially extending disk or hub region.
  • the front element and the counter-lining are suitably formed.
  • the front element but also a corresponding front panel on the counter-chuck, for example by loosening screw, easily solved and replaced by a new element.
  • the counter-chuck can be a chuck for radial clamping when clamping an annular and / or disc-shaped workpiece.
  • the method according to the invention is characterized in that the spinning chuck has a sleeve-shaped circumferential element which is moved axially during the shaping of the rim, and in that, during the shaping of the rim, the at least one spinning roller and the circumferential element of the spinning chuck are moved axially relative to the workpiece.
  • the method according to the invention can preferably be carried out on the above-described flow-forming machine according to the invention. In particular, the advantages described above with regard to flexibility and variety of shapes can be achieved.
  • a particularly accurate pressure-rolling is achieved according to an embodiment of the invention in that a plurality of spinning rollers evenly distributed over the circumference of the workpiece and axially offset from each other are delivered to the workpiece. Preferably, three or four spinning rollers are arranged above the circumference of the workpiece. The forming forces can thus be distributed to several spinning rollers, which allows a particularly workpiece and machine gentle forming.
  • the spinning roller and the peripheral element of the spinning chuck are moved in a coordinated manner axially relative to the front element or the clamped workpiece.
  • the method of spinning roller and peripheral element is preferably carried out differently, in particular when using a conically shaped peripheral element more complex inner contours of the rim base area are generated.
  • the at least one spinning roller first acts on a first diameter area of a conical peripheral element, then the at least one spinning roller on a second diameter area of the peripheral element which is smaller than the first diameter portion, and then engages the at least one spinning roller at a third diameter portion of the peripheral member, which is larger than the second diameter portion.
  • the third diameter region may have a diameter size as the first diameter region.
  • a deep bed area on the rim can be arranged and shaped as desired over the axial length of the rim.
  • the deep bed area can be formed not only in a central region, but also on a side region of the rim, which lies opposite the radial hub region of the disk-shaped workpiece. It is thus achieved a vehicle wheel with a rim with a relatively far outlying Tiefbett Scheme, resulting in a particularly voluminous-looking vehicle.
  • Such vehicle wheels with external deep bed area may be desirable for different wheel designs. With larger diameter portions of the conical peripheral element, the side surfaces become of the deep bed area and with a smaller diameter area, the bottom of the deep bed area is shaped under the action of the spinning roller.
  • a peripheral element is used, whose axial length is smaller than the rim to be formed, and that are formed with the peripheral element wheels with different axial length of the rim.
  • the forming can take place with an approximately horizontal axis of rotation.
  • a particularly accurate implementation of the forming process according to the invention is achieved according to a variant of the method, that during the forming of the workpiece about a vertical axis of rotation is set in rotation.
  • the delivery of the spinning rollers takes place essentially in the radial, horizontal direction.
  • a flow-forming machine 10 has a spinning chuck 20 and an opposite counter-chuck 12, between which a workpiece 5 with a disk-shaped hub region 6 with a central centering hole and a circumferential region 7 to be reshaped is clamped axially.
  • the counter-feed 12 and the spinning chuck 20 are each rotatably mounted via a drive flange 16 and 17 and connected to one, preferably one, not shown rotary drive, wherein the spinning chuck 20, the counter-chuck 12 and the clamped workpiece 5 about a vertical, central axis of rotation. 2 can be driven in rotation during forming.
  • the spinning chuck 20 has a central base support 22, at the free end of an annular or disc-shaped front member 24 is releasably secured by screws.
  • On the molding surface 14, a first rim flange 56 of a vehicle wheel 50 to be produced can be formed.
  • the spinning chuck 20 has a sleeve-shaped peripheral element 30, which is mounted axially displaceable on the base carrier 22.
  • the peripheral element 30 is attached to a pusher element 28, which is displaceable axially by means of an actuating cylinder (not shown) along the axis of rotation 2 between an advanced initial position and a retracted end position Fig. 1 is shown.
  • the peripheral element 30 has in its front or upper portion of an outer cone surface 32, which tapers towards the top.
  • a molding region 34 is formed, which is designed to form a second rim flange 58 on the vehicle wheel 50.
  • a plurality of spinning rollers 40 are delivered radially to the peripheral region 7 of the workpiece 5.
  • the peripheral element 30 of the spinning chuck 20 is in the overhead initial position, so that this serves as an abutment for the pressing roller 40 engaging the workpiece 5.
  • the spinning roller 40 is axially displaced radially to some extent to form a rim portion, and a wall thickness of the peripheral portion 7 is thinned and rolled out to the rim portion.
  • the sleeve-shaped, conical peripheral element 30 moves axially, so that the desired inner diameter range is always provided as an abutment for the spinning roller 40 at the desired position.
  • the peripheral element 30 remains axially stationary, so that in a further method of the spinning roller 40, the material of the workpiece 5 is formed on the forming area 34 and the second rim flange 58 is correspondingly pressed onto the hub area 6 corresponding to the first rim flange 56 ,
  • Fig. 1 In order to illustrate the flexibility of the flow-forming machine 10 according to the invention in wheel manufacture, a total of three different lengths of the vehicle wheel 50 are schematically indicated.
  • the spinning chuck 20 is thus largely independent of the vehicle wheel 50 to be formed and can be used for different axial lengths and inner contours.
  • To create only the electronic control is to adapt without mechanical remodeling of the flow-forming machine 10 would be necessary.
  • Fig. 2 is shown in highly schematic form another form of a vehicle wheel 50, which can be produced according to the invention.
  • the vehicle wheel 50 has a disc-shaped hub 52 and a drum-shaped rim 60, which are arranged substantially rotationally symmetrical to a wheel axle 51.
  • a center hole 54 In the region of the hub 52 may be provided a center hole 54 and other holes, depending on the design.
  • the rim 60 is provided with a rim base 62 which extends from a first rim flange 56 to a second rim flange 58.
  • a deep bed area 64 is formed in a middle section.
  • the deep bed area 64 represents a radial constriction on the rim bed 62 and thus an undercut area 70, which in Fig. 2 is particularly schematically illustrated.
  • the deep bed area 64 can also have a different dimensioning and arrangement, in particular, it can be arranged closer to the free-standing second rim flange 58.
  • the deep bed region 64 has two slightly tapered side flanks 66, which extend in a radial direction and extend up to an approximately cylindrical base 68.
  • the vehicle wheel 50 with the rim 60 and the deep bed area 64 can be manufactured with a method according to the invention with a correspondingly conical peripheral element 30 as an abutment for externally acting spinning rollers 40.
  • the peripheral element 30 is thereby displaced axially to provide the corresponding diameter range by means of a control and corresponding adjusting element as a function of the position of the spinning roller 40.
  • FIGS. 3a to 3c is a cup-shaped workpiece 5 with a radial hub portion 6 and a drum-shaped peripheral portion 7 by the method according to the invention to a spin-rolled wheel blank according to Fig. 3b or to the finished wheel according to Fig. 3c transformed, with in FIG. 3b an intermediate step, for example a wheel blank is shown before the distressing.
  • a half-section Y-shaped workpiece 5 having a radial hub portion 6 and a drum-shaped peripheral portion 7 extending to both sides of the radial hub portion 6 is used.
  • a flow-forming machine can be used, in which the counterfeed is the same or substantially equal to the spinning chuck and has a movable peripheral element.
  • This will by flipping and partial splitting into an intermediate form according to Fig. 5b reshaped.
  • the radial hub portion 6 and a V-shaped peripheral portion 7 is formed.
  • the workpiece 5 is then via the intermediate step according to Fig. 5c to the vehicle wheel 50 with a deep bed final molded.
  • a tubular workpiece 5 which forms the peripheral region 7.
  • the workpiece 5 can be clamped by a counter-chuck, which is designed as a radial chuck, such as a four-jaw chuck.
  • the spinning chuck can thus be used for processing the entire radial inner side of the workpiece 5.
  • a wheel 50 is reached, which consists solely of the drum-shaped rim 60. As far as a hub region is desired, this can be made separately and attached to the rim 60 by welding, in particular friction welding, or screwing.
  • a tubular workpiece 5 according to Fig. 6 a with both sides widened areas on an inventive spinning chuck taken in doppelnhofer execution and first the drop bed be made by pressing or profiling, so that this range of axial absorption or protection against axial displacement or torque transmission for the subsequent flow-forming process with axial displacement of the sleeve-shaped Scope elements serves.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP16182396.8A 2016-08-02 2016-08-02 Machine destinee a retreindre et procede de deformation pour la fabrication d'une roue Active EP3278894B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES16182396.8T ES2686946T3 (es) 2016-08-02 2016-08-02 Máquina de fluotorneado y procedimiento de conformación para la fabricación de una rueda
EP16182396.8A EP3278894B1 (fr) 2016-08-02 2016-08-02 Machine destinee a retreindre et procede de deformation pour la fabrication d'une roue
JP2019503421A JP2019528179A (ja) 2016-08-02 2017-07-03 車輪を製造するためのフロー成形機および成形方法
PCT/EP2017/066433 WO2018024417A1 (fr) 2016-08-02 2017-07-03 Machine de fluotournage et procédé de déformation pour la fabrication d'une roue
CN201780048782.8A CN109689242B (zh) 2016-08-02 2017-07-03 旋压成型机和用于制造轮子的成型方法
US16/320,448 US20200023419A1 (en) 2016-08-02 2017-07-03 Flow-forming machine and forming method for producing a wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16182396.8A EP3278894B1 (fr) 2016-08-02 2016-08-02 Machine destinee a retreindre et procede de deformation pour la fabrication d'une roue

Publications (2)

Publication Number Publication Date
EP3278894A1 true EP3278894A1 (fr) 2018-02-07
EP3278894B1 EP3278894B1 (fr) 2018-07-04

Family

ID=56567487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16182396.8A Active EP3278894B1 (fr) 2016-08-02 2016-08-02 Machine destinee a retreindre et procede de deformation pour la fabrication d'une roue

Country Status (6)

Country Link
US (1) US20200023419A1 (fr)
EP (1) EP3278894B1 (fr)
JP (1) JP2019528179A (fr)
CN (1) CN109689242B (fr)
ES (1) ES2686946T3 (fr)
WO (1) WO2018024417A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110227769B (zh) * 2019-06-27 2024-01-30 中信戴卡股份有限公司 一种车轮轮辋校形装置
CN113319599B (zh) * 2021-07-09 2023-01-17 重庆市超群工业股份有限公司 汽车轮毂加工系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202927A (ja) * 1982-05-21 1983-11-26 Hitachi Ltd くら形吸込コ−ンの製作方法
JPS60158933A (ja) * 1984-01-30 1985-08-20 Furukawa Alum Co Ltd 車輪リムの製造方法
DE19615675A1 (de) 1996-04-19 1997-10-23 Leifeld Gmbh & Co Verfahren zum Herstellen eines Fahrzeugrades
US20030145466A1 (en) * 2002-02-04 2003-08-07 Jeong-Hoon Baek Method for manufacturing alloy wheel for automobile
WO2005065049A2 (fr) 2004-01-07 2005-07-21 Wheels India Limited Roue de construction monobloc et procede de fabrication
CN101934326B (zh) * 2010-09-19 2012-09-19 正兴车轮集团有限公司 一种采用钢管制作汽车车轮轮辐的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW235936B (fr) * 1992-12-18 1994-12-11 Rezu Kotei Kk
RU2153946C2 (ru) * 1998-06-24 2000-08-10 Институт проблем сверхпластичности металлов РАН Способ изготовления колес для транспортных средств
ATE549106T1 (de) * 2009-07-09 2012-03-15 Leifeld Metal Spinning Ag Verfahren und vorrichtung zum abstreckdrückwalzen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202927A (ja) * 1982-05-21 1983-11-26 Hitachi Ltd くら形吸込コ−ンの製作方法
JPS60158933A (ja) * 1984-01-30 1985-08-20 Furukawa Alum Co Ltd 車輪リムの製造方法
DE19615675A1 (de) 1996-04-19 1997-10-23 Leifeld Gmbh & Co Verfahren zum Herstellen eines Fahrzeugrades
US20030145466A1 (en) * 2002-02-04 2003-08-07 Jeong-Hoon Baek Method for manufacturing alloy wheel for automobile
WO2005065049A2 (fr) 2004-01-07 2005-07-21 Wheels India Limited Roue de construction monobloc et procede de fabrication
CN101934326B (zh) * 2010-09-19 2012-09-19 正兴车轮集团有限公司 一种采用钢管制作汽车车轮轮辐的方法

Also Published As

Publication number Publication date
ES2686946T3 (es) 2018-10-22
CN109689242B (zh) 2021-02-26
JP2019528179A (ja) 2019-10-10
CN109689242A (zh) 2019-04-26
EP3278894B1 (fr) 2018-07-04
US20200023419A1 (en) 2020-01-23
WO2018024417A1 (fr) 2018-02-08

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