EP0329925B1 - Device for manufacturing work pieces such as pulleys with multiple v-profiles, or the like - Google Patents

Device for manufacturing work pieces such as pulleys with multiple v-profiles, or the like Download PDF

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Publication number
EP0329925B1
EP0329925B1 EP89100058A EP89100058A EP0329925B1 EP 0329925 B1 EP0329925 B1 EP 0329925B1 EP 89100058 A EP89100058 A EP 89100058A EP 89100058 A EP89100058 A EP 89100058A EP 0329925 B1 EP0329925 B1 EP 0329925B1
Authority
EP
European Patent Office
Prior art keywords
profiles
round blank
pulleys
blank
work pieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89100058A
Other languages
German (de)
French (fr)
Other versions
EP0329925A2 (en
EP0329925A3 (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
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Publication date
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Application filed by WF Maschinenbau und Blechformtecknik GmbH and Co KG filed Critical WF Maschinenbau und Blechformtecknik GmbH and Co KG
Publication of EP0329925A2 publication Critical patent/EP0329925A2/en
Publication of EP0329925A3 publication Critical patent/EP0329925A3/en
Application granted granted Critical
Publication of EP0329925B1 publication Critical patent/EP0329925B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 invention relates to a device according to the preamble of the claim.
  • the invention has for its object to improve the known from the generic DE-PS 35 39 835 tool so that even when using a so-called upsetting process, a cylindrical contact surface is created in which the application of a recess in the central area, so flush with the Level of the round blank is possible.
  • a compression roller 1 is shown, on the circumference of which a semicircular compression groove 2 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Pulleys (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung gemäß dem Oberbegriff des Patentanspruches.The invention relates to a device according to the preamble of the claim.

In der gattungsbildenden DE-PS 35 39 835 wird eine Spalt-/Stauchrolle beschrieben, mit der angestrebt wird, daß beiderseits des Mittelteils einer Ronde zwei senkrecht zum Mittelteil stehende Flansche ausgeformt werden, die in ihrer Gesamtheit eine größere Wandstärke als das Mittelteil aufweisen, wobei aber ein Auswandern der Ronde während des Verformungsvorganges, ein Einknicken oder ein Reißen des gebildeten zylindrischen Teils mit Sicherheit ausgeschaltet wird. Mit dieser bekannten Vorrichtung wird im mittleren Teil der Ronde immer eine durch die Schneidspitze bedingte Einpressung erzielt, so daß beim Herstellen einer Poly-V-Scheibe immer im mittleren Bereich der zylindrischen Auflagefläche eine Vertiefung sein muß, da sonst hier eine durch die Schneidspitze bedingte Schwächung und Materialbeeinflussung vorliegt.In the generic DE-PS 35 39 835 a split / compression roller is described, with which the aim is that two flanges perpendicular to the central part are formed on both sides of the central part of a blank, which in their entirety have a greater wall thickness than the central part, whereby but a migration of the round blank during the deformation process, a buckling or tearing of the cylindrical part formed is definitely eliminated. With this known device, an indentation caused by the cutting tip is always achieved in the central part of the round blank, so that when producing a poly-V disc, there must always be a depression in the central region of the cylindrical contact surface, since otherwise there is a weakening caused by the cutting tip and material influence.

Aus der Literaturstelle "Machinery and production engineering", Januar 1977, ist ein Verfahren bekannt, bei welcher mittels einer im nuttiefsten halbkreisförmig gebogenen Stauchrolle eine Verdickung des Randbereiches einer Ronde angestrebt wird. Hierbei wird die im wesentlichen halbkreisförmig im nuttiefsten gestaltete Stauchnut in ihrem Randbereich durch parallel zu den Außenseiten der Ronde verlaufende Wandabschnitte begrenzt. Ein Stauchen des äußeren Randbereiches der Ronde ist in der Praxis mit einer solchen Stauchrolle nicht möglich, da, wenn der Radius der Stauchnut in eine ebene Fläche übergeht, Reibungskräfte entstehen, die nicht mehr beherrschbar sind und eine Materialverformung erfolgt, die nicht fließend und kontinuierlich ist.From the reference "Machinery and production engineering", January 1977, a method is known in which a thickening of the edge region of a round blank is aimed at by means of a compression roller bent in the deepest semicircle. In this case, the compression groove, which is essentially semicircular in the groove-deepest, is delimited in its edge region by wall sections running parallel to the outer sides of the round blank. A compression of the outer edge area of the round blank is not possible in practice with such a compression roller, since when the radius of the compression groove merges into a flat surface, frictional forces arise that can no longer be controlled and a material deformation occurs that is not fluid and continuous .

Aus der JP-A-61 238 432 ist es bekannt, an einem flachen runden Bauteil über die Ebene dieser flachen Platte nach außen hin überstehende, ringförmige Vorsprünge dadurch zu erzeugen, daß die Platte zwischen zwei Formungswerkstücken in eine dreieckförmige oder halbrunde Nut eingepreßt wird. Eine erhebliche Verdickung des Randes der Ronde wird bei dieser Verfahrensweise nicht angestrebt.From JP-A-61 238 432 it is known to produce, on a flat, round component, outwardly projecting annular projections beyond the plane of this flat plate, in that the plate is pressed into a triangular or semicircular groove between two shaping workpieces. A considerable thickening of the edge of the round blank is not aimed at in this procedure.

Der Erfindung liegt die Aufgabe zugrunde, das aus der gattungsbildenden DE-PS 35 39 835 bekannte Werkzeug so zu verbessern, daß auch bei Einsatz eines sogenannten Stauchverfahrens eine zylindrische Auflagefläche geschaffen wird, in der das Anbringen einer Vertiefung im mittleren Bereich, also fluchtend mit der Ebene der Ronde möglich ist.The invention has for its object to improve the known from the generic DE-PS 35 39 835 tool so that even when using a so-called upsetting process, a cylindrical contact surface is created in which the application of a recess in the central area, so flush with the Level of the round blank is possible.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Patentanspruches gelöst.This object underlying the invention will solved by the teaching of the claim.

Mit anderen Worten ausgedrückt wird vorgeschlagen, in der Stauchrolle an ihrer Arbeitsseite, d. h. an ihrem Umfang, eine Stauchnut vorzusehen, die also umgekehrt arbeitet und wirkt, wie die in der gattungsbildenden Literaturstelle beschriebene Schneidspitze und die die Umfangsseite der eigentlichen Ronde wulstig verformt. Diese Wulst wird dann anschließend durch weitere Stauchrollen so bearbeitet, daß die zylindrische Auflagefläche geschaffen wird, in der die letzte Stauchrolle die Nuten der Poly-V-Scheibe einpreßt. Hierbei ist es nunmehr möglich, daß auch im mittleren Bereich dieser Nuten, d. h. also fluchtend mit der Ebene der Ronde, eine Erhebung vorgesehen ist. Dieses ist dann nötig, wenn beispielsweise drei Erhebungen über die Breite der Auflagefläche vorgesehen sein sollen oder fünf, d. h. also eine ungerade Anzahl, und diese Anzahl der Erhebungen richtet sich nach dem Einsatzzweck der Poly-V-Scheibe.In other words, it is proposed to provide a compression groove in the compression roll on its working side, that is to say on its circumference, which therefore works and works in reverse, like the cutting tip described in the generic literature reference and which bulges the circumferential side of the actual blank. This bead is then processed by further upsetting rollers so that the cylindrical support surface is created, in which the last compression roller presses the grooves of the poly-V disc. It is now possible that an elevation is also provided in the central region of these grooves, ie in alignment with the plane of the round blank. This is necessary if, for example, three elevations across the width of the support surface are to be provided or five, ie an odd number, and this number of elevations depends on the purpose of the poly-V pane.

Ein Ausführungsbeispiel wird nachfolgend anhand der Zeichnung erläutert. Die Zeichnung zeigt in Fig. 1 bis 4 verschiedene Stadien des Arbeitsverfahrens.An embodiment is explained below with reference to the drawing. The drawing shows in Fig. 1 to 4 different stages of the working process.

In der Zeichnung ist eine Stauchrolle 1 gezeigt, an deren Umfang eine halbkreisförmig ausgebildete Stauchnut 2 vorgesehen ist.In the drawing, a compression roller 1 is shown, on the circumference of which a semicircular compression groove 2 is provided.

An einer Ronde 3 wird an ihrem Umfang eine wulstförmige Stauchung 4 durch das Zusammenwirken mit der Stauchnut 2 erzielt, die weitere Verformung der Ronde 3 dargestellt, und in der letzten Darstellung ist erkennbar, daß durch die Poly-V-Stauchrolle 1c nunmehr die Einkerbungen in die zylindrische Auflagefläche 5 eingepreßt werden, wobei, wie dies die Zeichnung deutlich zeigt, fluchtend mit der Ebene der Ronde nunmehr auch im mittleren Teil der zylindrischen Auflagefläche eine Erhebung geschaffen werden kann.On a circular blank 3, a bulge-shaped upsetting 4 is achieved on its circumference through the interaction with the compression groove 2, the further deformation of the circular blank 3 is shown, and in the last illustration it can be seen that the notches in FIG the cylindrical bearing surface 5 are pressed in, whereby, as the drawing clearly shows, in alignment with the plane of the round blank an elevation can now also be created in the central part of the cylindrical bearing surface.

Claims (1)

  1. A device for producing workpieces, such as disks with multiple V-profiles, wheel rims or the like, comprising a hub and a cylindrical bearing surface (5) extending coaxially, i.e. substantially perpendicularly to the hub surface, the device comprising an edging roller (1) stressing the edge area of a round blank (3), which edging roller (1) deforms the edge area of the round blank (3) on both sides, the bearing surface (5) of the round blank (3) thus obtained being further processed thereafter, characterized in that the edging roller (1) comprises an exclusively semi-circular edging groove (2) on its circumference.
EP89100058A 1988-02-26 1989-01-04 Device for manufacturing work pieces such as pulleys with multiple v-profiles, or the like Expired - Lifetime EP0329925B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3806024 1988-02-26
DE3806024A DE3806024C1 (en) 1988-02-26 1988-02-26

Publications (3)

Publication Number Publication Date
EP0329925A2 EP0329925A2 (en) 1989-08-30
EP0329925A3 EP0329925A3 (en) 1990-11-07
EP0329925B1 true EP0329925B1 (en) 1993-09-15

Family

ID=6348212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100058A Expired - Lifetime EP0329925B1 (en) 1988-02-26 1989-01-04 Device for manufacturing work pieces such as pulleys with multiple v-profiles, or the like

Country Status (3)

Country Link
EP (1) EP0329925B1 (en)
DE (2) DE3806024C1 (en)
ES (1) ES2045195T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012100985A1 (en) 2012-02-07 2013-08-08 WF Maschinenbau und Blechformtechnik GmbH & Co. KG Method for manufacturing gear components, involves clamping metal blank with non-circular outer contour in tool and displacing in rotation around rotational axis, and transforming outer periphery of metal blank into axial area by rollers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013238C2 (en) * 1990-04-26 1993-12-02 Wf Maschinenbau Blechformtech Device for the production of workpieces, such as poly-V discs, rims or the like.
EP0493593B1 (en) * 1990-07-20 1994-10-19 Kabushiki Kaisha Kanemitsu Method of producing component parts of a fluid chamber
FR2677278B1 (en) * 1991-06-06 1995-07-13 Aubecq Auxi Sa METHOD FOR MANUFACTURING A PULLEY, DEVICE FOR IMPLEMENTING SAME AND PULLEY OBTAINED.
FR2677279B1 (en) * 1991-06-06 1996-07-12 Aubecq Auxi Sa PROCESS FOR MANUFACTURING A PULLEY AND DEVICE FOR IMPLEMENTING SAME.
DE4236636C2 (en) * 1992-10-30 1995-08-10 Leifeld Gmbh & Co Process for the production of a brake shoe
DE4322645C2 (en) * 1993-07-07 1995-08-10 Dieter Kirschdorf Process for producing a ring brake shoe
JP2700717B2 (en) * 1995-01-27 1998-01-21 株式会社カネミツ Method of manufacturing sheet metal poly-V groove pulley and sheet metal poly-V groove pulley
DE19723073C2 (en) * 1997-06-02 1999-05-06 Fischer & Kaufmann Gmbh & Co K Process for producing a rotationally symmetrical workpiece

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE227171C (en) *
GB218977A (en) * 1923-07-12 1925-10-15 Friedrich Im Schlaa Improvements relating to the cold rolling of the rims of circular discs
FR2527953A3 (en) * 1982-06-02 1983-12-09 Ducellier & Cie Method of forming grooved pulley - entails pressing blank in two jaw die, shaping rim with conical roller and forming grooves with roller cutter
FR2553851B1 (en) * 1983-10-21 1988-10-14 Aubecq Auxi Sa METHOD FOR MANUFACTURING A PULLEY WITH MULTIPLE V-GROOPS AND PULLEY THUS PRODUCED
JPS61129241A (en) * 1984-11-28 1986-06-17 Fuji Kiko Co Ltd Production of pulley
JPS61238432A (en) * 1985-04-16 1986-10-23 Terufumi Nojigawa Forming method of periphery part of flat parts
DE3519719A1 (en) * 1985-06-01 1986-12-04 Winkelmann & Pannhoff Gmbh, 4730 Ahlen WHEEL DISC, ESPECIALLY MULTIPLE V-PULLEY AND METHOD FOR THE PRODUCTION OF ROTATIONALLY-SYMMETRIC BODIES FROM CHANGE-MOLDABLE MATERIAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012100985A1 (en) 2012-02-07 2013-08-08 WF Maschinenbau und Blechformtechnik GmbH & Co. KG Method for manufacturing gear components, involves clamping metal blank with non-circular outer contour in tool and displacing in rotation around rotational axis, and transforming outer periphery of metal blank into axial area by rollers

Also Published As

Publication number Publication date
DE58905574D1 (en) 1993-10-21
EP0329925A2 (en) 1989-08-30
DE3806024C1 (en) 1989-03-23
EP0329925A3 (en) 1990-11-07
ES2045195T3 (en) 1994-01-16

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