EP1425120A1 - Device for producing a shaped body that has a concentric hub - Google Patents

Device for producing a shaped body that has a concentric hub

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Publication number
EP1425120A1
EP1425120A1 EP02787476A EP02787476A EP1425120A1 EP 1425120 A1 EP1425120 A1 EP 1425120A1 EP 02787476 A EP02787476 A EP 02787476A EP 02787476 A EP02787476 A EP 02787476A EP 1425120 A1 EP1425120 A1 EP 1425120A1
Authority
EP
European Patent Office
Prior art keywords
hub
tool pin
blank
roller
pressure roller
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
EP02787476A
Other languages
German (de)
French (fr)
Other versions
EP1425120B1 (en
Inventor
Udo Friese
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.)
WF Maschinenbau und Blechformtecknik GmbH and Co KG
Original Assignee
WF Maschinenbau und Blechformtecknik 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
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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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys

Definitions

  • the present invention relates to a device for producing a shaped body having a concentric hub according to the preamble of claim 1.
  • Shaped bodies produced by means of such devices are used in many fields of application.
  • the non-cutting production known as the spinning process, usually cold forming, is characterized by many advantages, which in particular allow rational and cost-effective production for series articles, such as those used as gear parts in automobile construction.
  • a generic device is such.
  • B known from WO 94/20235.
  • a molded body is produced from a metal blank, that is to say a sheet metal plate which has a central opening, and is provided with a concentric hub.
  • material is pressed out of the circular blank by radial infeed and pushed in the direction of the tool pin, where it is formed into a hub by molding onto this tool pin.
  • material displacement which can also be referred to as flow
  • the blank thickness is reduced in accordance with the material removal required for the hub formation.
  • the trailing roller serves firstly to prevent the round plate from bending open during pressing and secondly to precisely form the tool pin perform.
  • the trailing roller follows the spinning roller at a short distance.
  • the pressure rollers are designed so that their circumferential pressure surface runs parallel to the central longitudinal axis of the tool pin or the blank, the pressure surface directly adjoining the pressure edge which can be brought into engagement with the blank.
  • the material released from the round blank builds up in front of the pressure surface and is moved into the area of the tool pin, where it flows along it until it reaches a stop that specifies the height of the hub.
  • the material that has been swaged up, so to speak only flows parallel to or almost parallel to the tool pin immediately before it touches it, while previously taking up the space of a relatively thick bead.
  • the present invention is therefore based on the object of designing a device of the generic type in such a way that the loads which occur when pressing are reduced.
  • the pre-shaped hub is not pressed directly against the tool pin by the pressure roller. This is done by means of the trailing roller, the pressure surface of which runs parallel to the central longitudinal axis and with which the previously slightly inclined hub or the hitherto approximately funnel-shaped shape presses against the tool pin in such a way that a cylindrical shape results.
  • the trailing roller for the end limitation of the hub has a shoulder on which the free end face of the hub bears during molding.
  • the tool pin can also have a stop in the form of a shoulder, which limits the height of the hub and runs in the same plane, parallel to the round blank as the attachment of the pressure roller.
  • the width of the shoulder and the shoulder are preferably the same size, but together maximum according to the wall thickness of the hub.
  • the The hub is initially formed by the spinning roller in a funnel shape with an inclined wall in relation to the central axis of the tool pin and is then brought into a cylindrical shape by pressing the wall against the tool pin by means of the trailing roller.
  • the single figure shows a partial section through a device according to the invention in a schematic longitudinal section.
  • a device for producing a shaped body 1 having a concentric hub 12 which has a rotating tool plate 2 in the form of a chuck, a pressure roller 4, a follower roller 7 and a tool pin 3.
  • the tool plate 2 is provided with a recess in which a circular disc 11 lies, onto which the hub 12 can be formed by means of the pressure roller 4 and the follower roller 7, for which purpose the pressure roller 4 can be advanced axially and radially with respect to the central axis of the circular disc 11 ,
  • the initially disc-shaped, provided with a center hole round plate 11 is inserted into the tool plate 2 and set in rotation.
  • material of the circular blank 11, which initially projects beyond the tool plate 2 is pressed in the direction of the tool pin 3, the material so far separated being supported on a pressure surface 6 of the pressure roller 4.
  • This pressure surface 6 is inclined towards the outside relative to the longitudinal axis of the tool pin 3, starting from the blank 11, so that an initially approximately funnel-shaped hub is formed, as is shown on the right in the drawing.
  • the angle of inclination ⁇ of the pressure surface 6 is preferably 3-5 °.
  • the trailing roller 7 follows the spinning roller 4 immediately, whereby it is supported on the correspondingly machined surface of the round blank 11.
  • the trailing roller 7 also has a pressure surface 13, which, however, runs parallel to the central axis of the tool pin 3. Hence the initially inclined
  • Hub 12 pressed against the tool pin 3 and comes to rest there, so that a concentric cylindrical shape of the hub 12 is formed.
  • the trailing roller 7 On its side facing away from the round blank 11, the trailing roller 7 has a shoulder 8, which represents an end limitation in the design of the hub 12 and the latter
  • the tool pin 3 has a circumferential shoulder 9 which also forms a stop against which the hub 12 abuts.
  • the respective abutment surfaces of the shoulder 9 and the shoulder 8 are in one plane.
  • annular gap 10 is formed between the shoulder 8 and the tool pin 3, into which excess material can flow during the hub formation, so that an otherwise precise design of the hub 12 is possible without problems. This excess part can then be removed in a machining process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Adornments (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Forging (AREA)

Abstract

The invention relates to a device for producing a shaped body (1), which has a concentric hub (12), from a blank (11). The device comprises a rotating tool plate (2), against which the blank (11) rests, a pressure roller (4), which can be axially and/or radially advanced, and a following roller (7), which serves to shape the hub (12) about a concentrically arranged tool pin (3). The side of the pressure roller (4) facing the tool pin (3) has an application surface (6), against which the blank material removed during pressing rests. The inventive device is designed in such a manner that the application surface (6) extends in a sloping manner with regard to the central axis of the tool pin (3) and, to be precise, extends toward the exterior starting from the blank (11).

Description

Vorrichtung zur Herstellung eines eine konzentrische Nabe aufweisenden Device for producing a concentric hub
Formkörpersmolding
Die vorliegende Erfindung betrifft eine Vorrichtung zur Herstellung eines eine konzentrische Nabe aufweisenden Formkörpers gemäß dem Oberbegriff des An- Spruchs 1.The present invention relates to a device for producing a shaped body having a concentric hub according to the preamble of claim 1.
Mittels solcher Vorrichtungen hergestellte Formkörper finden in vielen Anwendungsbereichen Verwendung. Die als Drückverfahren bekannte spanlose Herstellung, üblicherweise eine Kaltverformung, zeichnet sich durch vielerlei Vorteile aus, die insbesondere eine rationelle und kostengünstige Herstellung für Serienartikel erlaubt, wie sie beispielsweise als Getriebeteile im Automobilbau eingesetzt werden.Shaped bodies produced by means of such devices are used in many fields of application. The non-cutting production known as the spinning process, usually cold forming, is characterized by many advantages, which in particular allow rational and cost-effective production for series articles, such as those used as gear parts in automobile construction.
Eine gattungsgemäße Vorrichtung ist z. B. aus der WO 94/20235 bekannt. Dabei wird aus einer Metallronde, also einer Blechplatine, die eine Mittelöffnung aufweist, mit Hilfe des Drückverfahrens ein Formkörper hergestellt, der mit einer konzentrischen Nabe versehen ist.A generic device is such. B. known from WO 94/20235. In this case, a molded body is produced from a metal blank, that is to say a sheet metal plate which has a central opening, and is provided with a concentric hub.
Mit Hilfe der Drückrolle wird aus der Ronde durch radiales Zustellen Material her- ausgedrückt und in Richtung des Werkzeugstiftes geschoben, wo es durch Anfor- men an diesen Werkzeugstift zu einer Nabe geformt wird. Bei der Material Verschiebung, die auch als ein Fließen bezeichnet werden kann, erfolgt eine Reduzierung der Rondendicke entsprechend des für die Nabenformung notwendigen Materialabtrags.With the help of the pressure roller, material is pressed out of the circular blank by radial infeed and pushed in the direction of the tool pin, where it is formed into a hub by molding onto this tool pin. In the case of material displacement, which can also be referred to as flow, the blank thickness is reduced in accordance with the material removal required for the hub formation.
Während mit Hilfe der Drückrolle einerseits das Abtragen des Materials aus der Ronde und andererseits das Schieben des Materials in Richtung des Werkzeugstiftes erfolgt, dient die Nachlaufrolle zum einen dazu, ein Aufbiegen der Ronde während des Drückens zu verhindern und zum anderen eine exakte Anformung an den Werkzeugstift durchzuführen. Dabei folgt die Nachlaufrolle der Drückrolle mit geringem Abstand. Bei den bekannten Vorrichtungen sind die Drückrollen so ausgebildet, daß ihre umlaufende Andruckfläche parallel zur Mittellängsachse des Werkzeugstiftes bzw. der Ronde verläuft, wobei sich die Andruckfläche unmittelbar an die mit der Ronde in Eingriff bringbare Drückkante anschließt.While the material is removed from the round blank and the material is pushed towards the tool pin with the help of the pressure roller, the trailing roller serves firstly to prevent the round plate from bending open during pressing and secondly to precisely form the tool pin perform. The trailing roller follows the spinning roller at a short distance. In the known devices, the pressure rollers are designed so that their circumferential pressure surface runs parallel to the central longitudinal axis of the tool pin or the blank, the pressure surface directly adjoining the pressure edge which can be brought into engagement with the blank.
Beim axialen und radialen Zustellen der Drückrolle baut sich das aus der Ronde gelöste Material vor der Andruckfläche auf und wird bis in den Bereich des Werkzeugstiftes verschoben, wo es dort an diesem entlang fließt bis zu einem Anschlag, der die Höhe der Nabe vorgibt.During the axial and radial infeed of the pressure roller, the material released from the round blank builds up in front of the pressure surface and is moved into the area of the tool pin, where it flows along it until it reaches a stop that specifies the height of the hub.
Bei dem genannten Materialaufbau an der Andruckfläche entstehen jedoch sehr hohe Kräfte, die auf die Drückrolle einwirken und nicht nur eine entsprechende Dimensionierung der entsprechenden Maschinenbauteile erfordern, sondern auch zu einem relativ hohen Verschleiß führen.In the case of the above-mentioned material structure on the pressure surface, however, very high forces arise which act on the pressure roller and not only require appropriate dimensioning of the corresponding machine components, but also lead to relatively high wear.
Wie sich gezeigt hat, fließt das sozusagen aufgestauchte Material erst unmittelbar vor der Anlage am Werkzeugstift parallel oder nahezu parallel zu diesem, während es zuvor den Raum eines relativ dicken Wulstes einnimmt.As has been shown, the material that has been swaged up, so to speak, only flows parallel to or almost parallel to the tool pin immediately before it touches it, while previously taking up the space of a relatively thick bead.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der gattungsgemäßen Art so auszubilden, daß die beim Drücken auftretenden Belastungen reduziert werden.The present invention is therefore based on the object of designing a device of the generic type in such a way that the loads which occur when pressing are reduced.
Diese Aufgabe wird durch eine Vorrichtung gelöst, die die Merkmale des An- Spruchs 1 aufweist bzw. ein Verfahren gemäß dem Anspruch 10.This object is achieved by a device which has the features of claim 1 or a method according to claim 10.
Wie sich überraschend gezeigt hat, wird hierdurch ein wesentlich geringerer wulstartiger Materialaufbau beim radialen Zustellen der Drückrolle erreicht. Vielmehr fließt das von der Ronde mittels der Drückrolle gelöste Material schon rechtzeitig an der Andruckfläche entlang, wodurch sich naturgemäß eine erheblich geringereAs has surprisingly been shown, this results in a substantially lower bulge material build-up when the pressure roller is fed radially. Rather, the material released from the circular blank by means of the pressure roller flows along the pressure surface in good time, which naturally results in a considerably smaller amount
Belastung bzw. eine Reduzierung des für das Drücken notwendigen Kraftaufwandes ergibt. Dieser liegt bei einer optimierten Gestaltung der Drückrolle, die nach einer vorteilhaften Weiterbildung der Erfindung eine Neigung von <10°, vorzugsweise 3-5°, vorsieht, um bis zu 40 % niedriger als bei einem Drücken nach dem Stand der Technik.Stress or a reduction in the force required for pressing results. This is due to an optimized design of the spinning roller, which follows an advantageous development of the invention provides an inclination of <10 °, preferably 3-5 °, by up to 40% lower than with a pressure according to the prior art.
Zwar wird durch die Drückrolle die insoweit vorgeformte Nabe nicht direkt an den Werkzeugstift angedrückt. Dies erfolgt mittels der Nachlaufrolle, deren Andruckfläche parallel zur Mittellängsachse verläuft und mit der die zuvor geringfügig schräggestellte Nabe bzw. die bis dahin etwa eine trichterförmige Gestalt einnehmende an den Werkzeugstift so andrückt, daß sich eine zylindrische Form ergibt.The pre-shaped hub is not pressed directly against the tool pin by the pressure roller. This is done by means of the trailing roller, the pressure surface of which runs parallel to the central longitudinal axis and with which the previously slightly inclined hub or the hitherto approximately funnel-shaped shape presses against the tool pin in such a way that a cylindrical shape results.
Nach einem weiteren Gedanken der Erfindung ist vorgesehen, daß die Nachlaufrolle zur Endbegrenzung der Nabe einen Ansatz aufweist, an dem beim Formen die Nabe mit ihrer freien Stirnseite anliegt.According to a further idea of the invention, it is provided that the trailing roller for the end limitation of the hub has a shoulder on which the free end face of the hub bears during molding.
Dabei kann der Werkzeugstift ebenfalls einen Anschlag in Form einer Schulter aufweisen, der die Höhe der Nabe begrenzt und in gleicher Ebene, parallel zur Ronde verläuft wie der Ansatz der Andruckrolle.The tool pin can also have a stop in the form of a shoulder, which limits the height of the hub and runs in the same plane, parallel to the round blank as the attachment of the pressure roller.
Denkbar ist aber auch, den Werkzeugstift durchgehend glattschaftig auszubilden, so daß hier lediglich die Nachlaufrolle die endseitige Begrenzung der Nabenformung bildet.However, it is also conceivable to design the tool pin to be continuously smooth, so that here only the trailing roller forms the end boundary of the hub formation.
Für eine Optimierung der Fertigung ist des weiteren vorgesehen, zwischen dem den Anschlag bildenden Ansatz der Nachlaufrolle und dem Werkzeugstift einen gerin- gen Ringspalt zu belassen, in den überschüssiges Material bei der Nabenformung dringen kann, das bei einer nachfolgenden Nabenbearbeitung abgetragen wird.In order to optimize production, it is also provided to leave a small annular gap between the shoulder of the trailing roller forming the stop and the tool pin, into which excess material can penetrate during the hub formation and which is removed during subsequent hub machining.
Die Breite des Ansatzes und der Schulter sind bevorzugt gleich groß, zusammen jedoch maximal entsprechend der Wandstärke der Nabe.The width of the shoulder and the shoulder are preferably the same size, but together maximum according to the wall thickness of the hub.
Bei einem Verfahren zur spanlosen Herstellung des die Nabe aufweisenden Formkörpers aus einer Ronde, entsprechend dem Oberbegriff des Anspruchs 10, wird die Nabe zunächst durch die Drückrolle trichterförmig mit, bezogen auf die Mittelachse des Werkzeugstiftes, schräg nach außen gestellter Wandung geformt und danach durch Andrücken der Wandung mittels der Nachlaufrolle an den Werkzeugstift in eine zylindrische Form gebracht wird.In a method for the non-cutting production of the molded body having the hub from a round blank, according to the preamble of claim 10, the The hub is initially formed by the spinning roller in a funnel shape with an inclined wall in relation to the central axis of the tool pin and is then brought into a cylindrical shape by pressing the wall against the tool pin by means of the trailing roller.
Weitere vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous developments of the invention are characterized in the subclaims.
Ein Ausfuhrungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnung beschrieben.An exemplary embodiment of the invention is described below with reference to the accompanying drawing.
Die einzige Figur zeigt einen Teilausschnitt durch eine erfindungsgemäße Vorrichtung in einem schematischen Längsschnitt.The single figure shows a partial section through a device according to the invention in a schematic longitudinal section.
In der Figur ist eine Vorrichtung zur Herstellung eines eine konzentrische Nabe 12 aufweisenden Formkörpers 1 dargestellt, die eine rotierende Werkzeugplatte 2 in Form eines Futters, eine Drückrolle 4, eine Nachlaufrolle 7 sowie einen Werkzeugstift 3 aufweist.In the figure, a device for producing a shaped body 1 having a concentric hub 12 is shown, which has a rotating tool plate 2 in the form of a chuck, a pressure roller 4, a follower roller 7 and a tool pin 3.
Die Werkzeugplatte 2 ist mit einer Ausnehmung versehen, in der eine Ronde 11 einliegt, an die mittels der Drückrolle 4 und der Nachlaufrolle 7 die Nabe 12 anformbar ist, wozu die Drückrolle 4 axial und radial, bezogen auf die Mittelachse der Ronde 11, zustellbar ist.The tool plate 2 is provided with a recess in which a circular disc 11 lies, onto which the hub 12 can be formed by means of the pressure roller 4 and the follower roller 7, for which purpose the pressure roller 4 can be advanced axially and radially with respect to the central axis of the circular disc 11 ,
Zur Formgebung wird die zunächst scheibenförmige, mit einem Mittelloch versehene Ronde 11 in die Werkzeugplatte 2 eingelegt und in Rotation versetzt. Mittels einer Drückkante 5 der Drückrolle 4 wird Material der Ronde 11, die zunächst über die Werkzeugplatte 2 hinaus vorsteht, in Richtung des Werkzeugstiftes 3 gedrückt, wobei sich das so weit abgetrennte Material an einer Andruckfläche 6 der Drückrolle 4 abstützt. Diese Andruckfläche 6 ist gegenüber der Längsachse des Werkzeugstiftes 3, ausgehend von der Ronde 11, nach außen hin geneigt, so daß sich eine zunächst etwa trichterförmige Nabe ausbildet, wie sie rechts in der Zeichnung abgebildet ist.For the shaping, the initially disc-shaped, provided with a center hole round plate 11 is inserted into the tool plate 2 and set in rotation. By means of a pressure edge 5 of the pressure roller 4, material of the circular blank 11, which initially projects beyond the tool plate 2, is pressed in the direction of the tool pin 3, the material so far separated being supported on a pressure surface 6 of the pressure roller 4. This pressure surface 6 is inclined towards the outside relative to the longitudinal axis of the tool pin 3, starting from the blank 11, so that an initially approximately funnel-shaped hub is formed, as is shown on the right in the drawing.
Der Neigungswinkel α der Andruckfläche 6 beträgt vorzugsweise 3-5°.The angle of inclination α of the pressure surface 6 is preferably 3-5 °.
Die Nachlaufrolle 7 folgt der Drückrolle 4 unmittelbar nach, wobei sie sich auf der entsprechend bearbeiteten Oberfläche der Ronde 11 abstützt. Auch die Nachlaufrolle 7 weist eine Andruckfläche 13 auf, die allerdings parallel zur Mittelachse des Werkzeugstiftes 3 verläuft. Von daher wird die zunächst geneigteThe trailing roller 7 follows the spinning roller 4 immediately, whereby it is supported on the correspondingly machined surface of the round blank 11. The trailing roller 7 also has a pressure surface 13, which, however, runs parallel to the central axis of the tool pin 3. Hence the initially inclined
Nabe 12 an den Werkzeugstift 3 gedrückt und kommt dort zur Anlage, so daß sich eine konzentrische zylindrische Form der Nabe 12 herausbildet.Hub 12 pressed against the tool pin 3 and comes to rest there, so that a concentric cylindrical shape of the hub 12 is formed.
Auf ihrer der Ronde 11 abgewandten Seite weist die Nachlaufrolle 7 einen Ansatz 8 auf, der eine Endbegrenzung bei der Ausbildung der Nabe 12 darstellt und derenOn its side facing away from the round blank 11, the trailing roller 7 has a shoulder 8, which represents an end limitation in the design of the hub 12 and the latter
Höhenabmaß bestimmt.Height dimension determined.
In diesem Sinn weist der Werkzeugstift 3 eine umlaufende Schulter 9 auf, die ebenfalls einen Anschlag bildet, an der die Nabe 12 anliegt. Dabei liegen die jeweiligen Anschlagflächen der Schulter 9 und des Ansatzes 8 in einer Ebene.In this sense, the tool pin 3 has a circumferential shoulder 9 which also forms a stop against which the hub 12 abuts. The respective abutment surfaces of the shoulder 9 and the shoulder 8 are in one plane.
Wie weiter zu erkennen ist, ist zwischen dem Ansatz 8 und dem Werkzeugstift 3 ein Ringspalt 10 gebildet, in den überschüssiges Material bei der Nabenformung fließen kann, so daß eine im übrigen exakte Ausbildung der Nabe 12 problemlos möglich ist. Dieser überschüssige Teil kann anschließend in einer spanenden Bearbeitung entfernt werden. BezugszeichenlisteAs can also be seen, an annular gap 10 is formed between the shoulder 8 and the tool pin 3, into which excess material can flow during the hub formation, so that an otherwise precise design of the hub 12 is possible without problems. This excess part can then be removed in a machining process. LIST OF REFERENCE NUMBERS
1 Formkörper1 molded body
2 Werkzeugplatte2 tool plate
3 Werkzeuggriff3 tool handle
4 Drückrolle4 spinning roller
5 Andruckfläche5 pressure surface
6 Nachlaufrolle6 trailing roller
7 Ansatz7 approach
8 Schulter8 shoulder
9 Ringspalt9 annular gap
10 Ronde10 round blank
11 Nabe11 hub
12 Andruckfläche 12 pressure surface

Claims

Patentansprüche claims
1. Vorrichtung zur Herstellung eines eine konzentrische Nabe (12) aufweisenden Forrnkörpers (1) aus einer Ronde (11), mit einer rotierenden Werkzeugplatte1. Device for producing a shaped body (1) having a concentric hub (12) from a round blank (11), with a rotating tool plate
(2), auf der die Ronde (11) aufliegt, einer axial und/oder radial zustellbaren Drück- (4) und einer Nachlaufrolle (7) zur Anformung der Nabe (12) um einen konzentrisch angeordneten Werkzeugstift (3), wobei die Drückrolle (4) auf ihrer dem Werkzeugstift (3) zugewandten Seite eine Andruckfläche (6) aufweist, an der das beim Drücken abgenommene Rondenmaterial anliegt, dadurch gekennzeichnet, daß die Andruckfläche (6), bezogen auf die Mittelachse des Werkzeugstiftes (3), geneigt verläuft, und zwar ausgehend von der Ronde (11) nach außen hin.(2), on which the blank (11) rests, an axially and / or radially adjustable pressure roller (4) and a follower roller (7) for shaping the hub (12) around a concentrically arranged tool pin (3), the pressure roller (4) on its side facing the tool pin (3) has a pressure surface (6) on which the blank material removed during pressing rests, characterized in that the pressure surface (6) is inclined with respect to the central axis of the tool pin (3) , starting from the round blank (11) to the outside.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Neigung der Andruckfläche (6) <10°, bezogen auf die Längsachse des Werkzeugstiftes (3), beträgt.2. Device according to claim 1, characterized in that the inclination of the pressure surface (6) <10 °, based on the longitudinal axis of the tool pin (3).
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Neigung der Andruckfläche (6) 3-5° beträgt.3. Device according to claim 2, characterized in that the inclination of the pressure surface (6) is 3-5 °.
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Nachlaufrolle (7) einen Ansatz (8) aufweist, an dem die Nabe (12) in Endstellung anliegt.4. The device according to claim 1, characterized in that the trailing roller (7) has a projection (8) on which the hub (12) rests in the end position.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Werkzeugstift (3) zur Höhenbegrenzung der Nabe (12) eine umlaufende Schulter (9) aufweist.5. The device according to claim 1, characterized in that the tool pin (3) for limiting the height of the hub (12) has a circumferential shoulder (9).
6. Vorrichtung nach Ansprach 4 oder 5, dadurch gekennzeichnet, daß die Schulter (9) und der Ansatz (8) in einer Ebene verlaufen. 6. The device according spoke 4 or 5, characterized in that the shoulder (9) and the approach (8) run in one plane.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Breite der Schulter (9) und die Breite des Ansatzes (8) gleich groß sind.7. The device according to claim 6, characterized in that the width of the shoulder (9) and the width of the neck (8) are the same size.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Breite der Schulter (9) und des Ansatzes (8) zusammen gleich oder kleiner der Dicke der Wandung der Nabe (12) ist.8. Device according to one of claims 1 to 7, characterized in that the width of the shoulder (9) and the neck (8) together is equal to or less than the thickness of the wall of the hub (12).
9. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß zwischen dem Ansatz (8) und dem Werkzeugstift (3) in formender Endstellung der Nachlauf- rolle (7) ein Ringspalt (10) gebildet ist.9. The device according to claim 3, characterized in that an annular gap (10) is formed between the neck (8) and the tool pin (3) in the shaping end position of the trailing roller (7).
10. Verfahren zur spanlosen Herstellung eines eine Nabe (12) aufweisenden Formkörpers (1) aus einer Ronde (11), bei dem die gegenüber mindestens einer Drückrolle (4) rotierende Ronde (11) durch Drücken mittels der Drückrolle (4) radial und/oder axial von außen nach innen in ihrer Dicke verringert und das abgetragene Material um einen zentrisch angeordneten, zylindrischen Werkzeugstift (3) zu der Nabe (12) geformt wird, dadurch gekennzeichnet, daß die Nabe (12) zunächst durch die Drückrolle (4) trichterförmig mit, bezogen auf die Mittelachse des Werkzeugstiftes (3), schräg nach außen gestellter Wandung geformt und danach durch Andrücken der Wandung mittels einer Nachlaufrolle10. Method for the non-cutting production of a molded body (1) having a hub (12) from a circular blank (11), in which the circular blank (11) rotating relative to at least one pressure roller (4) is pressed radially and / or by means of the pressure roller (4). or reduced in thickness axially from the outside inwards and the removed material is shaped to form the hub (12) by a centrally arranged, cylindrical tool pin (3), characterized in that the hub (12) is initially funnel-shaped by the pressure roller (4) with, based on the central axis of the tool pin (3), formed obliquely outward wall and then by pressing the wall by means of a trailing roller
(7) den Werkzeugstift (3) in eine zylindrische Form gebracht wird. (7) the tool pin (3) is brought into a cylindrical shape.
EP02787476A 2001-09-12 2002-09-06 Device and method for producing a shaped body that has a concentric hub Revoked EP1425120B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10144834A DE10144834A1 (en) 2001-09-12 2001-09-12 Concentric-hub shaped body producing device has application surface sloping relative to central axis of tool pin
DE10144834 2001-09-12
PCT/EP2002/009994 WO2003022483A1 (en) 2001-09-12 2002-09-06 Device for producing a shaped body that has a concentric hub

Publications (2)

Publication Number Publication Date
EP1425120A1 true EP1425120A1 (en) 2004-06-09
EP1425120B1 EP1425120B1 (en) 2008-03-26

Family

ID=7698718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02787476A Revoked EP1425120B1 (en) 2001-09-12 2002-09-06 Device and method for producing a shaped body that has a concentric hub

Country Status (10)

Country Link
US (1) US20040168496A1 (en)
EP (1) EP1425120B1 (en)
JP (1) JP2005501732A (en)
KR (1) KR20040039342A (en)
AT (1) ATE390227T1 (en)
CA (1) CA2458039A1 (en)
DE (2) DE10144834A1 (en)
DK (1) DK1425120T3 (en)
ES (1) ES2304461T3 (en)
WO (1) WO2003022483A1 (en)

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Publication number Priority date Publication date Assignee Title
DE502005001017D1 (en) * 2005-04-13 2007-08-23 Repkon Machine And Tool Indust Method for molding a groove
JP5167275B2 (en) 2007-01-04 2013-03-21 エスケー ケミカルズ カンパニー リミテッド Method for producing polyarylene sulfide resin excellent in brightness
CN102151737A (en) * 2011-04-25 2011-08-17 董利强 Pulley blank spinning process
CN109158469B (en) * 2018-08-03 2020-05-19 华中科技大学 Progressive thickening forming method for annular boss of annular plate

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GB590211A (en) * 1944-01-31 1947-07-10 Standard Telephones Cables Ltd Methods of and means for rolling annular metal bodies
WO1994020235A1 (en) * 1993-03-02 1994-09-15 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg Method for the non-cutting production of a transmission component hub
JP2719563B2 (en) * 1995-10-25 1998-02-25 日本イスエード株式会社 Stepped pulley manufacturing method
US5951422A (en) * 1996-06-24 1999-09-14 The Gates Corporation Hub and pulley with radially inward annular collar
JP3387831B2 (en) * 1998-03-09 2003-03-17 小島プレス工業株式会社 Method of manufacturing metal product having cylindrical portion integrally formed
WO2001007181A1 (en) * 1999-07-28 2001-02-01 Kanemitsu Corporation Sheet metal member and method of manufacturing the member
DE10033089A1 (en) * 2000-02-15 2001-08-23 Wf Maschinenbau Blechformtech Process for the non-cutting production of a component with a hub
JP3686867B2 (en) * 2000-03-10 2005-08-24 株式会社カネミツ Slotting method, slotting apparatus, and sheet metal brake shoe manufacturing method by slotting
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Also Published As

Publication number Publication date
JP2005501732A (en) 2005-01-20
ES2304461T3 (en) 2008-10-16
US20040168496A1 (en) 2004-09-02
DK1425120T3 (en) 2008-07-21
EP1425120B1 (en) 2008-03-26
WO2003022483A1 (en) 2003-03-20
DE50211980D1 (en) 2008-05-08
KR20040039342A (en) 2004-05-10
DE10144834A1 (en) 2003-03-27
ATE390227T1 (en) 2008-04-15
CA2458039A1 (en) 2003-03-20

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