EP0174501A2 - Method for bending section bars of metal, in particular of aluminium, with non supported webs, lips or the like - Google Patents

Method for bending section bars of metal, in particular of aluminium, with non supported webs, lips or the like Download PDF

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Publication number
EP0174501A2
EP0174501A2 EP85110004A EP85110004A EP0174501A2 EP 0174501 A2 EP0174501 A2 EP 0174501A2 EP 85110004 A EP85110004 A EP 85110004A EP 85110004 A EP85110004 A EP 85110004A EP 0174501 A2 EP0174501 A2 EP 0174501A2
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EP
European Patent Office
Prior art keywords
profile
metal
rollers
aluminium
lips
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
EP85110004A
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German (de)
French (fr)
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EP0174501A3 (en
EP0174501B1 (en
Inventor
Walter Allenspach
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.)
Cessione walba Machinery Ltd
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Allenspach Walter
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 Allenspach Walter filed Critical Allenspach Walter
Priority to AT85110004T priority Critical patent/ATE58314T1/en
Publication of EP0174501A2 publication Critical patent/EP0174501A2/en
Publication of EP0174501A3 publication Critical patent/EP0174501A3/en
Application granted granted Critical
Publication of EP0174501B1 publication Critical patent/EP0174501B1/en
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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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die

Definitions

  • the purpose of the present invention is therefore to provide a method and a device which allow the attacking bleeding moment to be divided into a tensile and a compressive component, the point of application being as possible comes to lie near the neutral zone in the profile to be bent.
  • an apparatus having at least three rollers in which the middle roller is connected by means of an angle bracket rigidly attached to the adjustable slide and a console mounted thereon for receiving profile-specific guide elements.
  • the rolling unit shown in Fig. 1 consists of the two outer rollers 1, 2 and the middle roller 3. Both the distance of the two rollers 1 and 2 from each other and the distance of the axis 6 or roller 3 from the axes 4, 5 of the rollers 1, 2 connecting straight lines are adjustable bar. If a workpiece 7 is now introduced in the direction X into the opening between a profile-specific guide element 10 and support disks of the roller 3, respectively. pushed between the support disks of rollers 1, 2 and then moved in the direction of arrows X, its radius of curvature is reduced. If this operation is repeated several times, the roller 3 being displaced in the direction of the arrow Y after each passage of the workpiece 7, the radius of curvature is further reduced.
  • FIG. 2 illustrates the device with the angle bracket 8, which is fixedly connected to the carriage on which the deliverable roller 3 sits and the rigid bracket 9, which serves as a carrier for the profile-specific guide element. 10 serves.
  • the workpiece 7 is guided between the guide element 10 and support disks of the roller 3, the guide element 10 being able to be prestressed in the Y direction by means of locking screws in slots 11 with the feed screw 12.
  • FIG 3 shows a sectional view of the device with a different type of workpiece 13. Without the profile specific guide element 14 would pull the wall on the outside of the arch towards the inside during bending.
  • the shape and material of the guide elements be adapted to the respective profile shapes and materials.
  • the method and the device for its execution allow workpieces of relatively large width or rather high free-standing walls, respectively. with free-standing formations, to bend into arches or rings and to carry out the bending process continuously.
  • the device can at any suitable bending, respectively.
  • Rolling machine can be attached.

Abstract

The object is achieved by dividing the bending moment acting on the central, adjustable roll (rupture on the inner edge of the section) into a tensile component and a compressive component. Seated on a tool carrier rigidly connected to the adjustable roll 3 or its carriage is a bracket (9) which carries a guiding element 10 matched to the section 7 in shape and material. By prestressing the guiding element 10 by means of the adjusting screw 12, it is possible to bring the point of action of the bending moment as close as possible to the neutral zone of the section 10. The device can be attached to any suitable bending or rolling machine. <IMAGE>

Description

Es ist allgemein bekannt, Stäbe, welche sowohl Voll- oder Hohlprofile sein können, insbesondere solche aus Stahl oder Aluminium, die beispielsweise zu halbkreisförmigen Segmenten oder zu Ringen geformt werden sollen, zwischen mindestens drei drehenden Walzen hindurchzuführen, von denen vorzugsweise mindestens eine angetrieben ist. Wenn die mittlere Walze sukzessive zwischen die beiden äußeren Walzen gebracht wird, so wird auf das zu biegende Werkstück ein Druck bzw. ein Biegemoment ausgeübt, das beim Hindurchführen des Werkstückes zwischen den Walzen dieses rundet.It is generally known to pass rods, which can be both solid or hollow profiles, in particular those made of steel or aluminum, which are to be formed, for example, into semicircular segments or rings, between at least three rotating rollers, of which at least one is preferably driven. If the middle roller is successively brought between the two outer rollers, a pressure or a bending moment is exerted on the workpiece to be bent, which rounds the workpiece as it is passed between the rollers.

Dieses Verfahren stellt keinerlei Probleme, wenn das zu biegende Werkstück in der Biegerichtung nicht zu breit ist oder der Biegeradius zu klein. Wenn aber Werkstucke gebogen werden sollen, die in der Biegerichtung größere Breiten aufweisen oder kleine Biegeradien erzielt werden müssen, so wird der an der Innenseite angreifende Druck so groß, daß dort unzulässige Verformungen oder gar Zerstörung auftreten.This method poses no problems if the workpiece to be bent is not too wide in the bending direction or the bending radius is too small. If, however, workpieces are to be bent that have larger widths in the bending direction or small bending radii have to be achieved, the pressure acting on the inside becomes so great that inadmissible deformations or even destruction occur there.

Zweck der vorliegenden Erfindung ist es daher, ein Verfahren und eine Vorrichtung anzugeben, welche es erlauben, das angreifende Blegemoment in eine Zug- und eine Druckkomponente aufzuteilen, wobei der Angriffspunkt möglichst nahe der neutralen Zone im zu biegenden Profil zu liegen kommt.The purpose of the present invention is therefore to provide a method and a device which allow the attacking bleeding moment to be divided into a tensile and a compressive component, the point of application being as possible comes to lie near the neutral zone in the profile to be bent.

Erfindungsgemäß wird dazu eine mindestens drei Walzen aufweisende Vorrichtung vorgeschlagen, bei der die mittlere Walze mittels einem starr am verstellbaren Schlitten befestigten Winkelträger, und darauf montierter Konsole zur Aufnahme von profilspezifischen Führungselementen verbunden ist. Dies hat zur Folge, daß die zum Biegen benötigte Kraft an der Innen- und Außenseite des Profils angreifen kann.According to the invention, an apparatus having at least three rollers is proposed, in which the middle roller is connected by means of an angle bracket rigidly attached to the adjustable slide and a console mounted thereon for receiving profile-specific guide elements. This has the consequence that the force required for bending can act on the inside and outside of the profile.

In den Zeichnungen ist eine Ausführungsform der erfindungsgemäßen Vorrichtung dargestellt, für zwei verschiedene Profile.In the drawings, an embodiment of the device according to the invention is shown, for two different profiles.

In den Zeichnungen zeigt

  • Fig. 1 eine Draufsicht auf eine aus drei Walzen und einem Winkelträger bestehende Anordnung mit Konsole für ein flaches Profil aus Aluminium,
  • Fig. 2 ein Schnittbild,
  • Fig. 3 ein Schnittbild mit einem anders gearteten Profil.
In the drawings shows
  • 1 is a plan view of an arrangement consisting of three rollers and an angle bracket with a bracket for a flat profile made of aluminum,
  • 2 is a sectional view,
  • Fig. 3 is a sectional view with a different type of profile.

Das in Fig. 1 gezeigte Walzaggregat besteht aus den beiden Außenwalzen 1, 2 und aus der Mittelwalze 3. Sowohl die Entfernung der beiden Walzen 1 und 2 voneinander als auch der Abstand der Achse 6 oder Walze 3 von der die Achsen 4, 5 der Walzen 1, 2 verbindenden Geraden sind einstellbar. Wird nun ein Werkstück 7 in Richtung X in die Öffnung zwischen einem profilspezifischen Führungselement 10 und Stützscheiben der Walze 3 eingebracht, resp. zwischen die Stützscheiben der Walzen 1, 2 geschoben und dann in Richtung der Pfeile X bewegt, so verkleinert sich sein Krümmungsradius. Bei mehrmaliger Wiederholung dieses Arbeitsgangcs, wobei nach jedem Durchgang des Werkstückes 7 die Walze 3 in Richtung des Pfeiles Y verschoben wird, verkleinert sich der Krümmungsradius weiter. Ohne das Führungselement 10 würde die in Richtung Y wirkende Druckkraft auf das Profil dieses an der Innenkante deformieren oder gar zerstören. Durch die Aufteilung dieser Druckkraft in eine Zug- und eine Druckkomponente, welche dank dem profilspezifischen Führungselement 10 nahe der neutralen Zone angreifen, kann das Profil weitergehend gebogen werden.The rolling unit shown in Fig. 1 consists of the two outer rollers 1, 2 and the middle roller 3. Both the distance of the two rollers 1 and 2 from each other and the distance of the axis 6 or roller 3 from the axes 4, 5 of the rollers 1, 2 connecting straight lines are adjustable bar. If a workpiece 7 is now introduced in the direction X into the opening between a profile-specific guide element 10 and support disks of the roller 3, respectively. pushed between the support disks of rollers 1, 2 and then moved in the direction of arrows X, its radius of curvature is reduced. If this operation is repeated several times, the roller 3 being displaced in the direction of the arrow Y after each passage of the workpiece 7, the radius of curvature is further reduced. Without the guide element 10, the compressive force acting in the direction Y on the profile would deform or even destroy it on the inner edge. By dividing this compressive force into a tensile and a compressive component, which, thanks to the profile-specific guide element 10, act close to the neutral zone, the profile can be bent further.

Der in Fig. 2 gezeigte Schnitt veranschaulicht die Vorrichtung mit dem Winkelträger 8, welcher fest mit dem Schlitten verbunden ist, auf welchem die zustellbare Walze 3 sitzt und die starre Konsole 9, welche als Träger für das profilspezifische Führungselement. 10 dient. Das Werkstück 7 ist zwischen Führungselement 10 und Stützscheiben der Walze 3 geführt, wobei das Führungselement 10 durch Feststellschrauben in Schlitzen 11 in Richtung Y mit der Zustellschraube 12 vorgespannt werden kann.The section shown in Fig. 2 illustrates the device with the angle bracket 8, which is fixedly connected to the carriage on which the deliverable roller 3 sits and the rigid bracket 9, which serves as a carrier for the profile-specific guide element. 10 serves. The workpiece 7 is guided between the guide element 10 and support disks of the roller 3, the guide element 10 being able to be prestressed in the Y direction by means of locking screws in slots 11 with the feed screw 12.

Dadurch kann der Angriffspunkt in die neutrale Zone des Werkstücks gebracht werden.This allows the point of attack to be brought into the neutral zone of the workpiece.

In Fig. 3 ist ein Schnittbild der Vorrichtung mit einem andersartigen Werkstück 13 dargestellt. Ohne das profilspezifische Führungselement 14 würde die Wandung an der Bogenaußenseite beim Biegen gegen innen gezogen werden.3 shows a sectional view of the device with a different type of workpiece 13. Without the profile specific guide element 14 would pull the wall on the outside of the arch towards the inside during bending.

Wesentlich für das Arbeiten mit dem erfindungsgemäßen Verfahren und dessen Vorrichtungen ist die Anpassung der Führungselemcnte in Form und Material an die jeweiligen Profilformen und -materialien.It is essential for working with the method and its devices according to the invention that the shape and material of the guide elements be adapted to the respective profile shapes and materials.

Das Verfahren und die Vorrichtung zu seiner Ausführung erlauben es, Werkstücke auch relativ großer Breite oder ziemlich hoher freistehender Wandungen resp. mit freistehenden Ausformungen, zu Bögen oder Ringen zu biegen und den Biegeprozeß kontinuierlich durchzuführen.The method and the device for its execution allow workpieces of relatively large width or rather high free-standing walls, respectively. with free-standing formations, to bend into arches or rings and to carry out the bending process continuously.

Die Vorrichtung kann an jeder geeigneten Biege-, resp. Walzmaschine angebracht werden.The device can at any suitable bending, respectively. Rolling machine can be attached.

Claims (4)

1. Verfahren zum Runden von Profilstangen aus Metall, insbesondere Aluminium, bei welchem das zu rundende Profil zwischen mindestens drei Walzen durchgeführt wird, von denen mindestens eine mit einer Vorrichtung fest verbunden ist, welche das angreifende Biegemoment in eine Zug- und eine Druckkomponente aufteilt.1. A method for rounding profile bars made of metal, in particular aluminum, in which the profile to be rounded is carried out between at least three rollers, at least one of which is firmly connected to a device which divides the attacking bending moment into a tensile and a compressive component. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Angriffspunkt des Biegemoments durch Vorspannung senkrecht zum durchlaufenden Profil möglichst nahe an die neutrale Zone gebracht wird.2. The method according to claim 1, characterized in that the point of application of the bending moment is brought as close as possible to the neutral zone by prestressing perpendicular to the continuous profile. 3. Vorrichtung zur Ausführung des Verfahrens nach Anspruch 1, welche mindestens drei Walzen (1, 2, 3) aufweist, von denen mindestens eine mit einer starren Konsole (9) zur Aufnahme von profilbezogenen Führungselementen (10,14) verbunden ist.3. Device for carrying out the method according to claim 1, which has at least three rollers (1, 2, 3), at least one of which is connected to a rigid bracket (9) for receiving profile-related guide elements (10, 14). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Führungselemente (10, 14) in Form und Material an das zu rundende Profil angepaßt werden.4. The device according to claim 3, characterized in that the guide elements (10, 14) are adapted in shape and material to the profile to be rounded.
EP85110004A 1984-09-12 1985-08-08 Method for bending section bars of metal, in particular of aluminium, with non supported webs, lips or the like Expired - Lifetime EP0174501B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110004T ATE58314T1 (en) 1984-09-12 1985-08-08 PROCESS FOR ROUNDING METAL PROFILE BARS, ESPECIALLY ALUMINUM WITH UNSUPPORTED BARS, LIPS OR SIMILAR FORMATIONS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4346/84A CH664101A5 (en) 1984-09-12 1984-09-12 METHOD AND DEVICE FOR ROUNDING METAL PROFILE BARS, ESPECIALLY ALUMINUM.
CH4346/84 1984-09-12

Publications (3)

Publication Number Publication Date
EP0174501A2 true EP0174501A2 (en) 1986-03-19
EP0174501A3 EP0174501A3 (en) 1986-11-12
EP0174501B1 EP0174501B1 (en) 1990-11-14

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EP85110004A Expired - Lifetime EP0174501B1 (en) 1984-09-12 1985-08-08 Method for bending section bars of metal, in particular of aluminium, with non supported webs, lips or the like

Country Status (4)

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EP (1) EP0174501B1 (en)
AT (1) ATE58314T1 (en)
CH (1) CH664101A5 (en)
DE (1) DE3580553D1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189160A (en) * 2011-04-02 2011-09-21 长治钢铁（集团）锻压机械制造有限公司 Channel steel lateral bending device of profile bender
CN102974665A (en) * 2012-10-16 2013-03-20 江苏华阳金属管件有限公司 Elbow forming device
CN105251831A (en) * 2015-09-21 2016-01-20 江苏大学 Adjustable deformation preventing device for angle iron bending
CN106424361A (en) * 2016-10-19 2017-02-22 中国人民解放军63926部队 Bending machine mold of aluminum alloy ribs and sealing edges and bending method of bending machine mold

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1335539U (en) *
US4117702A (en) * 1977-06-06 1978-10-03 The Boeing Company Rolling machines for contouring tapered structural members
CH613883A5 (en) * 1977-04-29 1979-10-31 Haeusler Christian Ag Multi-roll machine for bending sectional bars and a method for its operation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1335539U (en) *
CH613883A5 (en) * 1977-04-29 1979-10-31 Haeusler Christian Ag Multi-roll machine for bending sectional bars and a method for its operation
US4117702A (en) * 1977-06-06 1978-10-03 The Boeing Company Rolling machines for contouring tapered structural members

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189160A (en) * 2011-04-02 2011-09-21 长治钢铁（集团）锻压机械制造有限公司 Channel steel lateral bending device of profile bender
CN102189160B (en) * 2011-04-02 2016-07-06 长治钢铁（集团）锻压机械制造有限公司 The channel steel lateral bending device of type bender
CN102974665A (en) * 2012-10-16 2013-03-20 江苏华阳金属管件有限公司 Elbow forming device
CN105251831A (en) * 2015-09-21 2016-01-20 江苏大学 Adjustable deformation preventing device for angle iron bending
CN106424361A (en) * 2016-10-19 2017-02-22 中国人民解放军63926部队 Bending machine mold of aluminum alloy ribs and sealing edges and bending method of bending machine mold
CN106424361B (en) * 2016-10-19 2018-05-18 中国人民解放军63926部队 A kind of aluminium alloy bone row and the bending machine die and its bending method of edge sealing

Also Published As

Publication number Publication date
ATE58314T1 (en) 1990-11-15
DE3580553D1 (en) 1990-12-20
EP0174501A3 (en) 1986-11-12
EP0174501B1 (en) 1990-11-14
CH664101A5 (en) 1988-02-15

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