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EP1984131B1 - Rolling tool with integrated drawing stage - Google Patents

Rolling tool with integrated drawing stage Download PDF

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Publication number
EP1984131B1
EP1984131B1 EP07711179A EP07711179A EP1984131B1 EP 1984131 B1 EP1984131 B1 EP 1984131B1 EP 07711179 A EP07711179 A EP 07711179A EP 07711179 A EP07711179 A EP 07711179A EP 1984131 B1 EP1984131 B1 EP 1984131B1
Authority
EP
European Patent Office
Prior art keywords
profile rollers
forming method
roll
profile
lubricant
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.)
Not-in-force
Application number
EP07711179A
Other languages
German (de)
French (fr)
Other versions
EP1984131A2 (en
Inventor
Dietmar Schlayer
Hans-Joachim Pieperhoff
Frank Beig
Norbert Ziesel
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.)
Mueller Weingarten AG
Original Assignee
Mueller Weingarten AG
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 Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP1984131A2 publication Critical patent/EP1984131A2/en
Application granted granted Critical
Publication of EP1984131B1 publication Critical patent/EP1984131B1/en
Not-in-force legal-status Critical Current
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
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • 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
    • B21D22/20—Deep-drawing
    • B21D22/28—Deep-drawing of cylindrical articles using consecutive dies

Definitions

  • the invention relates to a rolling method and a tool for the production of cylindrical workpieces, with longitudinal grooves, by means of forming rollers with improved storage.
  • an optional integrated in the tool drawing stage should be upstream of the actual rolling process.
  • profile bodies such as disc carriers of clutches, toothed belt pulleys or similar workpieces with a cylindrical basic structure
  • high accuracies and precision are often required.
  • accuracy and surface quality are important.
  • the workpieces described are high-quality production parts, which are sometimes produced in large quantities. Thus, in addition to the qualitative characteristics, the costs and the output are important criteria in a production plant for such workpieces.
  • a special rolling tool makes it possible to produce the workpiece from a blank having a smooth outer contour by means of a press, wherein each press stroke forms a workpiece from a blank. With each press stroke, a rolling process takes place in which the profile rollers press the desired outer profile into the lateral surface of the workpiece.
  • the profile rollers are arranged in a lower tool along the circumference of the workpiece to be machined. If the workpiece is pressed between the rollers by means of an upper tool fastened to the plunger of the press, these are supported on support rollers with appropriate mounting.
  • the lower tool can be built rotationally symmetrical, wherein the profile of the workpiece generating individual profile rollers are regularly distributed at a uniform angle to each other along the circumference of the workpiece.
  • the disadvantage of the method is that before the rolling process already a contour preformed blank must be present. That is, the blank must be made in a separate forming process, such as a drawing process.
  • Another disadvantage in the embodiment described above is the structural design of the profile roller support on the support rollers. Although this design allows a reduced profile roller diameter, but is structurally very complex and costly by the arrangement of the support rollers. In addition, this results in a large height of the tool.
  • the US 2,751,872 discloses a device for forming a groove on a cup-shaped article.
  • the JP 2003 191 025 discloses a device and a method according to which a workpiece is first cylindrically deformed during a press stroke and then a profile is produced on the circumference of the workpiece by means of profile rollers.
  • the invention has for its object to develop a method and a tool, whereby a quality improvement for the machined with a tool according to the introductory prior art workpieces can be achieved.
  • the bearing shell halves protrude. Between the profile rollers and the bearing shells lubricant is introduced via a pressure lubrication.
  • the two Bearing halves are preferably made solid and only slightly higher in height than the scope of the profile rollers. This makes it possible to attach a draw ring in the upper area of the tool. This drawing ring, together with the stamp upper part, which is firmly connected to the plunger, the task of deep-drawing required for the rolling cylindrical blank from a flat board. This is preferably done without a sheet holder. However, the structure of the tool also allows it to perform the drawing process by means of an additionally installed plate holder.
  • FIG. 1 shows the tool 1 according to the invention in a sectional view.
  • the tool 1 consists of a drawing unit 6 and a roller unit 7.
  • the drawing unit 6 in turn consists of a stamp upper part 2, which is fixedly connected to the plunger 4 and a punch base 3, which is vertically movable on the lifting unit 5.
  • FIG. 1 the position is shown at the beginning of the drawing process.
  • the plunger 4 with the punch base 2 has already moved so far down that the deformation of the board 8 can begin.
  • the board 8 is pulled over the pull ring 9 down.
  • the stamp upper part 3 is displaced downwards. Due to the contour of the punch upper part 2 and by the design of the drawing ring 9 results after the drawing process, a blank 10, which serves as a starting shape for the subsequent Rollumformvorgang.
  • FIG. 2 is a position during the Rollumformvorganges shown.
  • the roller unit 7 with the upper bearing shell 11 and the lower bearing shell 12 can be seen.
  • the two bearing shell halves 11, 12 serve to receive or support the profile rollers 13.
  • These profile rollers 13 are arranged distributed on the circumference of the roller unit 7.
  • the blank 10 is now by the vertical downward movement of the plunger 4 with the.
  • a lubrication connection 14 can be seen at the outer edge of the tool 1 according to the invention.
  • this lubrication connection 14 and via the lubrication line 15 is pressed by means of a pressure lubrication lubricant between the bearing shell halves 11, 12 and the profile rollers.
  • This lubricant surrounds the profile rollers 13 and occurs in the region in which the profile rollers 13 with the raw ling 10 are engaged, from the bearings again and is fed to a lubricant circuit.
  • the lubricant outlet in the area of forming favors the roll forming process and results in a quality improvement of the roller result.
  • the plunger 4 moves with the punch upper part 2 back up, while the finished formed workpiece by means of the lifting unit 5 also upwards gefah ren. Subsequently, the workpiece 10 can be gripped and transported by an automation device. After a new board 8 is inserted into the tool 1 according to the invention, the combined drawing and roll forming can start anew.
  • FIG. 3 the arrangement of the profile rollers 13 can be clearly seen. These are in the circumference, corresponding to the final contour of the workpiece 10, arranged. Also shown is the lower bearing shell 12, in which the profile rollers 13 are stored or guided.
  • the rolling unit 7 can be arranged several times one above the other so as to enable multi-stage roll forming. It is also conceivable that the drawing unit 6 is additionally equipped with a regulated sheet holder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Metal Extraction Processes (AREA)
  • Metal Rolling (AREA)

Abstract

The invention relates to a method and a tool for producing cylindrical workpieces having longitudinal grooves, wherein the actual rolling operation is preceded by a drawing stage integrated in the tool and wherein the forming rollers are realized with an improved mounting.

Description

Die Erfindung betrifft ein Rollverfahren und ein Werkzeug zur Herstellung von zylindrischen Werkstücken, mit Längsnuten, mittels Umformrollen mit einer verbesserten Lagerung. Außerdem soll optional dem eigentlichen Rollvorgang eine in das Werkzeug integrierte Ziehstufe vorgeschaltet werden.The invention relates to a rolling method and a tool for the production of cylindrical workpieces, with longitudinal grooves, by means of forming rollers with improved storage. In addition, an optional integrated in the tool drawing stage should be upstream of the actual rolling process.

Stand der TechnikState of the art

Bei der Fertigung von Profilkörpern, wie beispielsweise Lamellenträger von Kupplungen, Zahnriemenscheiben oder ähnlichen Werkstücken mit einer zylindrischen Grundstruktur, werden häufig hohe Genauigkeiten und Präzision gefordert. Insbesondere kommt es auf Genauigkeit und die Oberflächenqualität an.In the manufacture of profile bodies, such as disc carriers of clutches, toothed belt pulleys or similar workpieces with a cylindrical basic structure, high accuracies and precision are often required. In particular, accuracy and surface quality are important.

Bei den beschriebenen Werkstücken handelt es sich um hochwertige Fertigungsteile, welche teilweise in großer Stückzahl hergestellt werden. Somit sind neben den qualitativen Merkmalen auch die Kosten und die Ausbringung wichtige Kriterien bei einer Produktionsanlage für solche Werkstücke.The workpieces described are high-quality production parts, which are sometimes produced in large quantities. Thus, in addition to the qualitative characteristics, the costs and the output are important criteria in a production plant for such workpieces.

Zur Herstellung der oben beschriebenen Werkstücke offenbart die DE 20 17 709 A1 ein geeignetes Verfahren. Ein spezielles Rollwerkzeug ermöglicht es, das Werkstück aus einen Rohling mit glatter Außenkontur mittels einer Presse herzustellen, wobei jeder Pressenhub aus einem Rohling ein Werkstück ausformt. Bei jedem Pressenhub läuft ein Walzenvorgang ab, bei dem die Profilrollen das gewünschte Außenprofil in die Mantelfläche des Werkstückes eindrücken. Die Profilrollen sind dabei in einem Unterwerkzeug entlang des Umfanges des zu bearbeitenden Werkstückes angeordnet. Wird das Werkstück mittels eines am Stößel der Presse befestigten Oberwerkzeuges zwischen die Rollen gepresst, stützen sich diese an Stützrollen mit entsprechender Lagerung ab.For the preparation of the above-described workpieces discloses the DE 20 17 709 A1 a suitable method. A special rolling tool makes it possible to produce the workpiece from a blank having a smooth outer contour by means of a press, wherein each press stroke forms a workpiece from a blank. With each press stroke, a rolling process takes place in which the profile rollers press the desired outer profile into the lateral surface of the workpiece. The profile rollers are arranged in a lower tool along the circumference of the workpiece to be machined. If the workpiece is pressed between the rollers by means of an upper tool fastened to the plunger of the press, these are supported on support rollers with appropriate mounting.

Das Unterwerkzeug lässt sich rotationssymetrisch aufbauen, wobei die das Profil des Werkstückes erzeugenden einzelnen Profilrollen regelmäßig und mit einheitlichem Winkel zueinander entlang des Umfanges des Werkstückes verteilt sind. Infolge dessen und infolge der sich ergebenden rotationssymmetrischen Kräfteaufteilung während eines Umformvorganges sind die einzelnen von den jeweiligen Profilrollen hergestellten Nuten untereinander praktisch gleich. Es wird insbesondere eine absatzfreie Kontur erreicht.The lower tool can be built rotationally symmetrical, wherein the profile of the workpiece generating individual profile rollers are regularly distributed at a uniform angle to each other along the circumference of the workpiece. As a result, and as a result of the resulting rotationally symmetric distribution of forces during a forming process, the individual grooves produced by the respective profile rollers are virtually identical to one another. In particular, a paragraph-free contour is achieved.

Der Nachteil des Verfahrens ist, dass vor dem Rollverfahren bereits ein konturnah vorgeformter Rohling vorhanden sein muss. Das heißt, der Rohling muss in einem separaten Umformverfahren, beispielsweise einem Ziehverfahren hergestellt werden. Ein weiterer Nachteil in der oben beschriebenen Ausführung liegt im konstruktiven Aufbau der Profilrollenabstützung über die Stützrollen. Diese Ausführung ermöglicht zwar einen verkleinerten Profilrollendurchmesser, ist aber baulich durch die Anordnung der Stützrollen sehr aufwendig und kostenintensiv. Außerdem resultiert daraus eine große Bauhöhe des Werkzeuges.The disadvantage of the method is that before the rolling process already a contour preformed blank must be present. That is, the blank must be made in a separate forming process, such as a drawing process. Another disadvantage in the embodiment described above is the structural design of the profile roller support on the support rollers. Although this design allows a reduced profile roller diameter, but is structurally very complex and costly by the arrangement of the support rollers. In addition, this results in a large height of the tool.

Die US 2,751,872 offenbart eine Vorrichtung zur Ausbildung einer Nut an einem topfförmigen Artikel. Die JP 2003 191 025 offenbart eine Vorrichtung und ein Verfahren, wonach ein Werkstück während eines Pressenhubes zuerst zylindrisch verformt und anschließend mittels Profilrollen ein Profil am Umfang des Werkstücks erzeugt wird.The US 2,751,872 discloses a device for forming a groove on a cup-shaped article. The JP 2003 191 025 discloses a device and a method according to which a workpiece is first cylindrically deformed during a press stroke and then a profile is produced on the circumference of the workpiece by means of profile rollers.

Aufgabe und Vorteil der ErfindungTask and advantage of the invention

Der Erfindung liegt die Aufgabe zugrunde ein Verfahren und ein Werkzeug zu entwickeln, womit eine Qualitätsverbesserung für die mit einem Werkzeug entsprechend des einleitenden Standes der Technik bearbeiteten Werkstücke erreicht werden kann.The invention has for its object to develop a method and a tool, whereby a quality improvement for the machined with a tool according to the introductory prior art workpieces can be achieved.

Diese Aufgabe wird ausgehend von einem Verfahren nach dem Oberbegriff des Anspruch 1, durch die kennzeichnenden Merkmale des Anspruch 1 und ausgehend von einem Werkzeug nach dem Oberbegriff des Anspruchs 5, durch die kennzeichnenden Merkmale des Anspruch 5 gelöst. In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen des erfindungsgemäßen Verfahrens bzw. des erfindungsgemäßen Werkzeugs angegeben. Der Erfindung liegt der Gedanke zugrunde, den abwärts gerichteten Hub einer Umformpresse für einen kombinierten Umformvorgang, besteht aus Tiefziehen und Rollumformen innerhalb eines Werkzeuges zu nutzen. Vorteilhaft wirkt sich dabei aus, dass die Bauhöhe des Werkzeugteiles, welches für die Rollumformung vorgesehen ist, durch eine neuartige Profilrollenlagerung deutlich reduziert wird. Die Lagerung der Profilrollen besteht aus zwei Lagerschalenhälften, welche die Profilrollen auf dem überwiegenden Teil der Umfänge der Profilrollen umhüllen. Auf der der Werkstück zugewandten Seite ragen die Profilrollen und den Lagerschalenhälften hinaus. Zwischen den Profilrollen und den Lagerschalen wird Schmiermittel über eine Druckschmierung eingebracht. Die beiden Lagerschalenhälften sind vorzugsweise massiv ausgeführt und in ihrer Bauhöhe nur unwesentlich höher als der Umfang der Profilrollen. Dies ermöglicht im oberen Bereich des Werkzeuges einen Ziehring anzubringen. Dieser Ziehring hat zusammen mit dem Stempeloberteil, welches mit dem Stößel fest verbunden ist, die Aufgabe, den für den Rollvorgang erforderlichen zylindrischen Rohling aus einer ebenen Platine tiefzuziehen. Dies geschieht vorzugsweise blechhalterlos. Der Aufbau des Werkzeuges lässt es allerdings ebenso zu, den Ziehvorgang mittels eine zusätzlich installierten Blechhalters durchzuführen.This object is achieved on the basis of a method according to the preamble of claim 1, by the characterizing features of claim 1 and starting from a tool according to the preamble of claim 5, by the characterizing features of claim 5. In the dependent claims advantageous and expedient developments of the method and the tool according to the invention are given. The invention is based on the idea to use the downward stroke of a forming press for a combined forming process, consists of deep drawing and Rollumformen within a tool. It has the advantageous effect that the height of the tool part, which is provided for the roll forming, is significantly reduced by a novel profile roller bearing. The storage of the profile rollers consists of two bearing shell halves, which wrap the profile rollers on the majority of the perimeters of the profile rollers. On the workpiece side facing the profile rollers and the bearing shell halves protrude. Between the profile rollers and the bearing shells lubricant is introduced via a pressure lubrication. The two Bearing halves are preferably made solid and only slightly higher in height than the scope of the profile rollers. This makes it possible to attach a draw ring in the upper area of the tool. This drawing ring, together with the stamp upper part, which is firmly connected to the plunger, the task of deep-drawing required for the rolling cylindrical blank from a flat board. This is preferably done without a sheet holder. However, the structure of the tool also allows it to perform the drawing process by means of an additionally installed plate holder.

Aufgrund der geringen Bauhöhe des erfindungsgemäßen Werkzeuges ist es ebenso denkbar, dass mehrere Rollensätze in Hubrichtung eingebaut werden und somit der Rollenumformvorgang mehrstufig erfolgen kann.Due to the low overall height of the tool according to the invention, it is also conceivable that a plurality of sets of rollers are installed in the stroke direction and thus the Rollenumformvorgang can be done in several stages.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem, anhand,der Zeichnungen dargestellten Ausführungsbeispiel.Further details and advantages of the invention will become apparent from the embodiment illustrated by the drawings.

Es zeigen:

Figur 1
Werkzeug mit Stempel und Platine zu Beginn des Tiefziehvorganges
Figur 2
Werkzeug mit Stempel und Rohling während des Roll- umformvorganges
Figur 3
Rolleinheit in einer Draufsicht
Show it:
FIG. 1
Tool with punch and board at the beginning of the deep drawing process
FIG. 2
Tool with punch and blank during the roll forming process
FIG. 3
Rolling unit in a plan view

Beschreibung eines AusführungsbeispielsDescription of an embodiment

Figur 1 zeigt das erfindungsgemäße Werkzeug 1 in einer Schnittdarstellung. Das Werkzeug 1 besteht aus einer Zieheinheit 6 und einer Rolleinheit 7. Die Zieheinheit 6 wiederum besteht aus einem Stempeloberteil 2, welches fest mit dem Stößel 4 verbunden ist und aus einem Stempelunterteil 3, welches über die Hubeinheit 5 vertikal verfahrbar ist. FIG. 1 shows the tool 1 according to the invention in a sectional view. The tool 1 consists of a drawing unit 6 and a roller unit 7. The drawing unit 6 in turn consists of a stamp upper part 2, which is fixedly connected to the plunger 4 and a punch base 3, which is vertically movable on the lifting unit 5.

In Figur 1 ist die Position zu Beginn des Ziehvorganges dargestellt. Der Stößel 4 mit dem Stempelunterteil 2 hat sich bereits soweit nach unten bewegt, dass die Umformung der Platine 8 beginnen kann. Dabei wird die Platine 8 über den Ziehring 9 nach unten gezogen. Das Stempeloberteil 3 wird nach unten verdrängt. Durch die Kontur des Stempeloberteils 2 sowie durch die Ausgestaltung des Ziehrings 9 ergibt sich nach dem Ziehvorgang ein Rohling 10, der als Ausgangsform für den sich anschließenden Rollumformvorgang dient.In FIG. 1 the position is shown at the beginning of the drawing process. The plunger 4 with the punch base 2 has already moved so far down that the deformation of the board 8 can begin. The board 8 is pulled over the pull ring 9 down. The stamp upper part 3 is displaced downwards. Due to the contour of the punch upper part 2 and by the design of the drawing ring 9 results after the drawing process, a blank 10, which serves as a starting shape for the subsequent Rollumformvorgang.

In Figur 2 ist eine Position während des Rollumformvorganges dargestellt. Zu sehen ist die Rolleinheit 7 mit der oberen Lagerschale 11 und der unteren Lagerschale 12. Die beiden Lagerschalenhälften 11, 12 dienen zur Aufnahme bzw. Lagerung der Profilrollen 13. Diese Profilrollen 13 sind am Umfang der Rolleinheit 7 verteilt angeordnet. Der Rohling 10 wird nun durch die vertikale Abwärtsbewegung des Stößels 4 mit dem. Stempeloberteil 2 an den Profilrollen vorbeigeführt und erhält dadurch das sich aus der Anordnung der Profilrollen ergebende Längsnutenprofil am Außendurchmesser. Am äußeren Rand des erfindungsgemäßen Werkzeuges 1 ist ein Schmieranschluss 14 zu sehen. Über diesen Schmieranschluss 14 und über die Schmierleitung 15 wird mittels einer Druckschmierung Schmiermittel zwischen die Lagerschalenhälften 11, 12 und die Profilrollen gedrückt. Dieses Schmiermittel umhüllt die Profilrollen 13 und tritt in dem Bereich, in dem die Profilrollen 13 mit dem Roh ling 10 in Eingriff stehen, aus den Lagerschalen wieder aus und wird einem Schmiermittelkreislauf zugeführt. Der Schmiermittelaustritt im Bereich der Umformung begünstigt den Rollumformvorgang und hat eine Qualitätsverbesserung des Rollergebnisses zur Folge.In FIG. 2 is a position during the Rollumformvorganges shown. The roller unit 7 with the upper bearing shell 11 and the lower bearing shell 12 can be seen. The two bearing shell halves 11, 12 serve to receive or support the profile rollers 13. These profile rollers 13 are arranged distributed on the circumference of the roller unit 7. The blank 10 is now by the vertical downward movement of the plunger 4 with the. Stamp upper part 2 past the profile rollers and thereby receives the resulting from the arrangement of the profile rollers Längsnutenprofil on the outer diameter. At the outer edge of the tool 1 according to the invention, a lubrication connection 14 can be seen. Via this lubrication connection 14 and via the lubrication line 15 is pressed by means of a pressure lubrication lubricant between the bearing shell halves 11, 12 and the profile rollers. This lubricant surrounds the profile rollers 13 and occurs in the region in which the profile rollers 13 with the raw ling 10 are engaged, from the bearings again and is fed to a lubricant circuit. The lubricant outlet in the area of forming favors the roll forming process and results in a quality improvement of the roller result.

Nach dem Umformvorgang bewegt sich der Stößel 4 mit dem Stempeloberteil 2 wieder nach oben, während das fertig umgeformte Werkstück mittels der Hubeinheit 5 ebenfalls nach oben gefah ren wird. Anschließend kann das werkstück 10 von einer Automatisierungsvorrichtung gegriffen und weitertransportiert werden. Nachdem eine neue Platine 8 in das erfindungsgemäße Werkzeug 1 eingelegt wird kann die kombinierte Zieh- und Rollumformung von neuem beginnen.After the forming process, the plunger 4 moves with the punch upper part 2 back up, while the finished formed workpiece by means of the lifting unit 5 also upwards gefah ren. Subsequently, the workpiece 10 can be gripped and transported by an automation device. After a new board 8 is inserted into the tool 1 according to the invention, the combined drawing and roll forming can start anew.

In Figur 3 ist die Anordnung der Profilrollen 13 deutlich zu erkennen. Diese sind im Umfang, entsprechend der Endkontur des Werkstückes 10, angeordnet. Ebenfalls dargestellt ist die untere Lagerschale 12, in der die Profilrollen 13 gelagert bzw. geführt werden.In FIG. 3 the arrangement of the profile rollers 13 can be clearly seen. These are in the circumference, corresponding to the final contour of the workpiece 10, arranged. Also shown is the lower bearing shell 12, in which the profile rollers 13 are stored or guided.

Beispielsweise kann wie bereits erwähnt die Rolleinheit 7 mehrfach übereinander angeordnet werden um so ein mehrstufiges Rollumformen zu ermöglichen. Ebenfalls denkbar ist, dass die Zieheinheit 6 zusätzlich mit einem geregelten Blechhalter ausgerüstet wird.For example, as already mentioned, the rolling unit 7 can be arranged several times one above the other so as to enable multi-stage roll forming. It is also conceivable that the drawing unit 6 is additionally equipped with a regulated sheet holder.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
WerkzeugTool
22
StempeloberteilStamp shell
33
StempelunterteilStamp base
44
Stößeltappet
55
Hubeinheitlifting unit
66
Zieheinheitdrawing unit
77
Rolleinheitroll unit
88th
Platinecircuit board
99
Ziehringdrawing ring
1010
Rohlingblank
1111
obere Lagerschaleupper bearing shell
1212
untere Lagerschalelower bearing shell
1313
Profilrollenprofile rolls
1414
Schmieranschlusslubrication connector
1515
Schmierleitunglubricating line

Claims (9)

  1. Method for producing cylindrical workpieces by using a roll-forming method, in which by means of concentrically arranged profile rollers (13) a profile is produced on the circumference of a workpiece, wherein a blank (10), which is used as the starting form for the roll-forming method, is produced from a flat plate (8) by means of a forming method, which is arranged upstream of the roll-forming method, and said forming method and the roll-forming method are performed beneath the same ram (4) during the same ram downwards stroke, characterised in that by means of pressurised lubrication through a lubricant line (15) lubricant is introduced between the bearing shell halves (11, 12) for the profile rollers (13) and the profile rollers (13), so that lubricant surrounds the profile rollers (13) and in the region in which the profile rollers (13) are in engagement with the workpiece (10) exits the bearing shells and is supplied to a lubricant circuit.
  2. Method according to claim 1, characterised in that the forming method, which precedes the roll-forming method, is a deep-drawing method.
  3. Method according to claim 1 and 2, characterised in that the roll-forming method, which follows the deep-drawing method, is performed in multiple stages, that is by means of a plurality of rolling units (7) arranged above one another.
  4. Method according to one or more of the preceding claims 1 to 3, characterised in that the deep-drawing method and the roll-forming method are performed by means of a common tool (1).
  5. Tool for producing cylindrical workpieces by using a roll-forming method, comprising concentrically arranged profile rollers (13), by means of which a profile is formed on the circumference of a workpiece, wherein above at least one roller unit (7) consisting of concentrically arranged profile rollers (13) a drawing unit (6) is located, inside which a plate (8) is drawn by means of a upper die part (2) by a drawing ring (9), characterised in that pressurised lubrication is provided, which is designed such that via a lubrication line (15) lubricant is introduced between the bearing shell halves (11, 12) for the profile rollers (13) and the profile rollers (13), so that lubricant surrounds the profile rollers (13) and in the region, in which the profile rollers (13) are in engagement with the workpiece (10), exits the bearing shells and is supplied to a lubricant circuit.
  6. Tool according to claim 5, characterised in that the pressing force of the upper die part (2) acts via the plate (8) on the lower die part (3), which is forced downwards during the forming procedure.
  7. Tool according to claim 5 and 6, characterised in that a plurality of roller units (7) are arranged above one another.
  8. Tool according to one or more of claims 5 to 7, characterised in that for shaping the plate (8) a controlled plate holder can be used.
  9. Tool according to one or more of claims 5 to 8, characterised in that a lifting unit (5) is provided for moving the workpiece (10) upwards, after its forming procedure.
EP07711179A 2006-02-16 2007-02-09 Rolling tool with integrated drawing stage Not-in-force EP1984131B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006007501A DE102006007501A1 (en) 2006-02-16 2006-02-16 Rolling tool with integrated drawing stage
PCT/DE2007/000264 WO2007093159A2 (en) 2006-02-16 2007-02-09 Rolling tool with integrated drawing stage

Publications (2)

Publication Number Publication Date
EP1984131A2 EP1984131A2 (en) 2008-10-29
EP1984131B1 true EP1984131B1 (en) 2011-04-27

Family

ID=38048048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711179A Not-in-force EP1984131B1 (en) 2006-02-16 2007-02-09 Rolling tool with integrated drawing stage

Country Status (6)

Country Link
US (1) US7743637B2 (en)
EP (1) EP1984131B1 (en)
AT (1) ATE507018T1 (en)
CA (1) CA2640673C (en)
DE (2) DE102006007501A1 (en)
WO (1) WO2007093159A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023002096A1 (en) 2023-05-23 2024-11-28 Baublies Ag Tool

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DE102006007501A1 (en) 2007-08-23
CA2640673C (en) 2013-07-02
ATE507018T1 (en) 2011-05-15
US20090049880A1 (en) 2009-02-26
DE502007007051D1 (en) 2011-06-09
US7743637B2 (en) 2010-06-29
EP1984131A2 (en) 2008-10-29
CA2640673A1 (en) 2007-08-23
WO2007093159A3 (en) 2007-12-21
WO2007093159A2 (en) 2007-08-23

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