EP0463132B1 - Machine a cintrer pour le cintrage de materiau en forme de barres - Google Patents

Machine a cintrer pour le cintrage de materiau en forme de barres Download PDF

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Publication number
EP0463132B1
EP0463132B1 EP91901448A EP91901448A EP0463132B1 EP 0463132 B1 EP0463132 B1 EP 0463132B1 EP 91901448 A EP91901448 A EP 91901448A EP 91901448 A EP91901448 A EP 91901448A EP 0463132 B1 EP0463132 B1 EP 0463132B1
Authority
EP
European Patent Office
Prior art keywords
bending
housing
machine according
holder
mandrel
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
EP91901448A
Other languages
German (de)
English (en)
Other versions
EP0463132A1 (fr
Inventor
Klaus Ritter
Gerhard Ritter
Gerhard Schmidt
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0463132A1 publication Critical patent/EP0463132A1/fr
Application granted granted Critical
Publication of EP0463132B1 publication Critical patent/EP0463132B1/fr
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
    • 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
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment

Definitions

  • the invention relates to a bending machine for bending rod-shaped material in two directions, with a rotatable bending plate, which is provided with a central bending mandrel and an eccentrically arranged bending tool, and with a stationary, adjustable counter-holder.
  • a bending machine of this type which is suitable for bending wires, rods, pipes or the like. is known from DE-A-22 15 490 and from DE-OS 22 21 185.
  • the counterholder is inserted into fixed perforated strips, which are displaceable in their longitudinal direction in accordance with the diameter of the material to be bent.
  • the bending plate with its bending tools is arranged between the perforated strips.
  • the stationary counterholder and the eccentrically arranged bending tool are on one side and the central mandrel on the opposite side of the material to be bent.
  • the material to be bent When changing the bending direction, the material to be bent must be arranged on the opposite side of the central mandrel and the counterholder and the eccentric bending tool must be brought to the other side of the material to be bent.
  • the counterholder is manually inserted into the corresponding hole in the perforated strip and this may have to be adjusted in its longitudinal direction if necessary.
  • a bending machine in which a pair of movable counterholders is mounted on a stationary frame supporting the bending plate. Each counter-holder can be pivoted from a working position into a rest position by means of a drive means. Depending on the bending direction, a counterholder in the working position acts with the Bending tools together, while the other counter-holder is pivoted through 90 ° into the rest position so as not to hinder the bending movement of the bending tool. If the diameter of the material to be bent changes, the counterholders are moved with the aid of drive elements in the direction perpendicular to their stop surface in the working position.
  • This construction has the disadvantage of a considerable effort for the drive and the control of the two counterholders as well as the lack that only the ends of the rods can be bent in different directions due to the fixed working position of the counterholders relative to the bending elements.
  • the object of the invention is to provide a bending machine of the type specified in the introduction, which avoids the disadvantages of the known designs and enables the counter-holder to be set independently on the material to be bent without any tools and regardless of the bending direction.
  • the bending machine according to the invention is characterized in that the bending plate is mounted coaxially to the housing in a housing which is rotatably mounted about an axis in a stationary frame, and is rotatable by means of a rotary drive device mounted on the housing, and in that the counter-holder is arranged eccentrically on the housing and can be applied to the material to be bent by means of the rotary drive device.
  • the housing can be preset in a position predetermined by the respective bending direction by means of a swivel arm which is mounted on a bearing journal of the housing and can be actuated by an associated swivel drive device.
  • the bending plate is rotatably mounted on the side of the bearing pin of the housing facing away from the swivel arm.
  • the invention enables simple adjustment and conversion of the bending head for receiving and processing rod-shaped material of different diameters and for executing bends in opposite directions.
  • a cylindrical housing 1 can be seen, which is mounted via a bearing pin 2 and a bearing 3 rotatable about an axis X-X in a fixed, schematically indicated frame 4.
  • a bending plate 5 is mounted coaxially to the housing by means of a hub 6 and via a bearing 7 on a journal 8 connected to the journal 2 rotatable about the axis X-X.
  • the bending plate 5 has on its upper side a diagonally running groove 9, into which a bending strip 10 is interchangeably inserted, which is at the same time attached to an eccentrically arranged support pin 11 of the bending plate 5.
  • the bending strip 10 carries a central bending mandrel 12, the axis of which coincides with the axis XX, and an eccentrically arranged bending body 13 which surrounds the supporting pin 11.
  • the bending body 13 has two bending surfaces 14 which are angled relative to one another (cf. Form contact surfaces for the material to be bent.
  • the bending body 13 can, however, also be cylindrical.
  • the bending mandrel 12 and the bending body 13 are adapted in their dimensions and in their mutual distance to the dimensions of the material to be bent.
  • the working surfaces of the bending mandrel 12 and the bending body 13 can be roughened, for example knurled, to increase the friction between these surfaces and the material to be bent.
  • the housing 1 also carries an interchangeable counter-holder 15 with slightly curved, mutually angled stop surfaces 16, on which the material to be bent is supported during the bending process.
  • the counter-holder 15 can also be cylindrical in the context of the invention and rotatably attached to the housing 1.
  • the counter-holder 15 can be exchanged for another one, or a counter-holder shoe 17 with a dash-dotted line in FIG.
  • a rotary drive motor 18 is mounted on the housing 1, the drive pinion 19 of which engages in a toothed ring 20 provided on the hub 6 of the bending plate 5.
  • a rotary encoder 21 provided with a measuring wheel 22 is also fastened to the housing 1, the measuring wheel 22 engaging in the toothed ring 20 without play and allowing the angle of rotation between the bending plate 5 and the housing 1 to be measured.
  • a swivel arm 24 is fastened, via which the housing 1 with the aid of a swivel drive device, e.g. is designed as a hydraulic working cylinder 25 about the axis X-X according to the double arrow P4 (Fig. 3) is pivotable.
  • a swivel drive device e.g. is designed as a hydraulic working cylinder 25 about the axis X-X according to the double arrow P4 (Fig. 3) is pivotable.
  • Fig. 2 the bending tools 12, 13 and the counter-holder 15 are each shown in their starting position for bending a wire D counterclockwise.
  • the wire D is guided eccentrically parallel to a central line SS with play between the mandrel 12 and the bending body 13 with the help of clamping jaws, not shown, in the direction of arrow P 1.
  • the counter holder 15 is located on the same side of the wire as that Bending body 13.
  • the swivel drive device 25 is switched off and the rotary drive motor 18 is set in motion via a control device, not shown, whereby the housing 1 with the counter-holder 15 rotates according to the double arrow P 2 until the counter-holder 15 abuts the wire D, thereby causing the rotary movement of the housing 1 is ended.
  • the rotary drive motor 18 is then further controlled in the same direction, whereby the bending plate 5 rotates in the opposite direction to the previous rotation of the housing 1 until the double arrow P 3 until the bending body 13 rests with its bending surface 14 on the wire D and this between the bending mandrel 12 and flexible body 13 is firmly clamped. If the rotary drive motor 18 is then driven further in the same direction, the bending plate 5 continues to rotate in accordance with the double arrow P 3 and thereby bends the wire D around the bending mandrel 12.
  • the swivel drive device 25 and the rotary drive motor 18 are driven in the opposite direction, whereby the bending plate 5 and the housing 1 each rotate in the opposite direction such that the counter-holder 15 and the bending body 13 move towards one another, detach from the wire D and return to their starting position.
  • the wire can now be advanced in the direction of the arrow P 1 and a further bend in the same direction, as described above, be made.
  • the wire to be bent is lifted with the help of the clamping jaws parallel to the axis XX so far from the bending plate 5 that the counter-holder 15 and the flexible body 13 can be moved under the wire and the wire can be lifted over the bending mandrel 12 into a position beyond the bending mandrel 12.
  • the housing 1 and thus the counter-holder 15 are brought into a position with the aid of the swivel arm 24, which is a mirror image of the central line S-S compared to the position shown in FIG. 2. While the housing 1 is held in this position with the aid of the swivel arm 24, the bending plate 5 is then rotated by actuating the rotary drive motor 18 until the bending body 13 comes into a position which is relative to the position shown in FIG. 2 with respect to the central line SS is mirror image.
  • the wire is now raised with the aid of the clamping jaws over the bending mandrel 12 and lowered perpendicular to the surface of the bending plate 5 between the bending mandrel 12 and the bending body 13.
  • Fig. 3 shows a further embodiment of a bending machine according to the invention, in which a lifting of the wire is not necessary for the change in bending direction.
  • the counter-holder 26 consists of two connected to the housing 1, possibly interchangeable fork-like parts 27 and 28, between which the wire D to be bent is inserted in the direction of arrow P 1 by means of clamping jaws, not shown.
  • the counter holder 26 is designed in such a way that on the one hand all possible diameters of the material to be bent can be accommodated, on the other hand the external dimensions of the counter holder Allow bends with the maximum possible bend angle of approximately 180 °.
  • the counter-holder 26 When changing the bending direction, the counter-holder 26 is brought into the position 26 'shown in broken lines by rotating the housing 1 with the aid of the swivel arm 24 which can be pivoted in accordance with the double arrow P4, the wire D being carried along and coming into the position D'.
  • the bending slide 30 is arranged in accordance with the double arrow P5 with the help of drive elements, not shown, in the groove 9 of the bending plate 5 and can be fixed on the bending plate 5 by means not shown.
  • the original, central bending mandrel 12 reaches a new position 29 'and thereby becomes the eccentrically arranged bending pin, whereas the original, eccentric bending pin 29 now assumes the position of the central bending mandrel 12 and also assumes its function.
  • the bending slide 30 is displaced synchronously with the rotation of the housing 1 in order to be able to transfer the wire D securely into the new starting position D '.
  • the wire is also made by rotating the bending plate 5 by means of the drive motor 18 in the same way as has already been described in the exemplary embodiment according to FIGS. 1 and 2.
  • the Brackets 15 and 26 as well as the central bending mandrel 12 and the eccentric bending tools 13, 29 can be adjusted in height to the maximum possible number and the diameter of the materials to be bent.
  • the bending machine makes it possible to bend arcs with a radius of curvature that is greater than the radius of the mandrel 12. Since bending of the wire up to the radius of curvature of the bending mandrel 12 occurs only when the bending body 13 or the bending bolt 29 rotates by a certain amount, the bending occurring at smaller angles of rotation is correspondingly less. Depending on the size of the angle of rotation of the bending tools 13 and 29, any radius of curvature can be achieved during bending. The entire bending process is divided into several partial bends with corresponding partial bending angles, i.e. Parted angles of rotation of the bending tools 13 and 29, respectively.
  • the bending tools 13 and 29 are rotated back into the starting position, the wire D is advanced with the aid of the clamping jaws by a partial feed step in the direction of the arrow P 1 and a further bending step is carried out.
  • the size of the partial feed step is given by the quotient of the total feed for the production of the finished sheet and the number of individual partial bends.
  • the bending processes and the feed of the material are repeated according to the number of partial bends until the desired arc is completed. In the bending process explained above, the tensioning device and the rotary drive device are thus controlled alternately by the central control device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)

Abstract

Machine à cintrer pour le cintrage de matériau en forme de barres dans deux directions, comportant un plateau de cintrage tournant (5) muni d'un mandrin de cintrage central (12) ainsi que d'un outil de cintrage (13) disposé de manière excentrique, ainsi qu'un serre-pièce (15; 17) réglable et stationnaire. Le plateau de cintrage est logé dans un carter (1), lequel tourne dans un chassis-support stationnaire (4) autour d'un axe (X-X), coaxialement audit carter et de manière rotative au moyen d'un dispositif d'entraînement en rotation (18) monté sur le carter. Le serre-pièce est disposé de manière excentrique sur le carter et peut être appliqué au moyen du dispositif d'entraînement en rotation (18) au matériau à cintrer.

Claims (13)

  1. Machine à cintrer destinée au cintrage d'un matériau en forme de barres (D) en deux directions, comportant un plateau de cintrage rotatif (5) muni d'un mandrin de cintrage central (12) et d'un outil de cintrage (13) disposé de façon excentrique et d'un contre-support réglable (15; 17; 26), fixé à demeure, machine de cintrage caractérisée en ce que le plateau de cintrage (5) est monté dans un logement (1) qui dans un bâti fixe (4) est rotatif autour d'un axe (X-X), monté de façon coaxiale par rapport au logement et pouvant être mis en rotation au moyen d'un dispositif d'entraînement rotatif (18) monté sur le logement (1) et en ce que le contre-support (15 ; 17 ; 26) agencé de façon excentrique sur le logement (1) peut être appliqué au moyen du dispositif d'entraînement rotatif (18) sur le matériau à cintrer.
  2. Machine à cintrer selon la revendication 1, caractérisée en ce que le logement (1) peut à l'aide d'un bras pivotant (24) monté sur un tourillon (2, 23) du logement et actionnable par un dispositif d'entraînement pivotant associe (25), être réglable préalablement pour le positionnement grossier du contre-support (15 ; 17 ; 26) dans une position prédéterminée par la direction de cintrage respective.
  3. Machine à cintrer selon la revendication 2, caractérisée en ce que sur le côté opposé au bras pivotant (24), du tourillon (2, 23) du logement (1), le plateau de cintrage (5) est monté de façon rotative.
  4. Machine à cintrer selon l'une des revendications 1 à 3, caractérisée en ce que le mandrin de cintrage central (12) et l'outil de cintrage agencé de façon excentrique (29) sont disposés de façon déplaçable dans une gorge diagonale (9) du plateau de cintrage (5), et des coulisseaux de cintrage (30) fixables sont agencés sur le plateau de cintrage.
  5. Machine à cintrer selon la revendication 4, caractérisée en ce que le mandrin de cintrage (12) et l'outil de cintrage (29) sont d'une façon connue de forme identique, de préférence cylindrique.
  6. Machine à cintrer selon l'une des revendications 1 à 3, caractérisée en ce que le mandrin de cintrage central (12) et l'outil de cintrage agencé de façon excentrique (13) sont agencés sur un coulisseau de cintrage (10) pouvant être monté dans la gorge diagonale (9) du plateau de cintrage (5).
  7. Machine à cintrer selon l'une des revendications 1 à 6, caractérisée en ce que les surfaces de travail du mandrin de cintrage (12) et de l'outil de cintrage (13, 29) ont été traitées de façon à présenter une configuration rugueuse.
  8. Machine à cintrer selon l'une des revendications 1 à 7, caractérisée en ce que le contre-support (15) est de forme cylindrique et en ce qu'il est agencé de façon rotative sur le logement (1).
  9. Machine à cintrer selon les revendications 1 à 7, caractérisée en ce que le contre-support (26) est formé à partir de pièces agencées en forme de fourche (27, 28) de façon à recevoir le matériau à cintrer.
  10. Machine à cintrer selon les revendications 1 à 9, caractérisée en ce que le mouvement rotatif (P₃) du plateau de cintrage (5) par rapport au logement (1) peut être mesuré pendant le cintrage au moyen d'un dispositif de mesure (12) et en ce que la valeur mesurée peut être introduite dans un dispositif de commande du dispositif d'entraînement rotatif (18).
  11. Machine à cintrer selon les revendications 1 à 10, caractérisée en ce que pour l'avance du matériau à cintrer, comme cela est connu, il est prévu un dispositif de serrage commandable et en ce que le matériau lors du changement de la direction de cintrage peut être positionné au moyen du dispositif de serrage.
  12. Machine à cintrer selon les revendications 1 à 11, caractérisée en ce que le contre-support (15 ; 17; 26), le mandrin de cintrage (12) et l'outil de cintrage (13, 29) sont conçus pour le cintrage simultané de plusieurs matériaux en forme de barres.
  13. Machine à cintrer selon les revendications 1 à 12, caractérisée en ce que le dispositif d'entraînement rotatif (18) peut être commandé seul ou le dispositif de serrage peut être commandé en alternance avec le dispositif d'entraînement rotatif (18).
EP91901448A 1990-01-12 1991-01-02 Machine a cintrer pour le cintrage de materiau en forme de barres Expired - Lifetime EP0463132B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0006190A AT399676B (de) 1990-01-12 1990-01-12 Biegemaschine zum biegen von stabförmigem material
AT61/90 1990-01-12
PCT/AT1991/000001 WO1991010519A1 (fr) 1990-01-12 1991-01-02 Machine a cintrer pour le cintrage de materiau en forme de barres

Publications (2)

Publication Number Publication Date
EP0463132A1 EP0463132A1 (fr) 1992-01-02
EP0463132B1 true EP0463132B1 (fr) 1994-12-14

Family

ID=3480493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901448A Expired - Lifetime EP0463132B1 (fr) 1990-01-12 1991-01-02 Machine a cintrer pour le cintrage de materiau en forme de barres

Country Status (8)

Country Link
US (1) US5203195A (fr)
EP (1) EP0463132B1 (fr)
JP (1) JPH04504820A (fr)
AT (2) AT399676B (fr)
DE (1) DE59103855D1 (fr)
DK (1) DK0463132T3 (fr)
GR (2) GR920300043T1 (fr)
WO (1) WO1991010519A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20080574A1 (it) * 2008-10-28 2010-04-28 Cml Int Spa Macchina curvatubi con trasmissione perfezionata del moto alla matrice

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0790276B2 (ja) * 1993-05-24 1995-10-04 サンテクス株式会社 曲げ加工方法
DE69320972T2 (de) * 1993-06-17 1999-02-11 Suehiro Settsu Osaka Mizukawa Biegevorrichtung für stahlband
IT1262256B (it) * 1993-12-22 1996-06-19 Piegatrici Macch Elettr Perno di contrasto di una macchina piegatrice
KR0182069B1 (ko) * 1995-06-22 1999-04-01 송병준 컷팅블레이드의 절곡시스템
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction
US8631674B2 (en) * 2008-12-17 2014-01-21 Aim, Inc. Devices, systems and methods for automated wire bending

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE525244C (de) * 1930-03-11 1931-05-21 Anton Wagenbach Biegemaschine fuer Eisenstaebe
CH363545A (de) * 1958-05-09 1962-07-31 Suter Fa Alois Biegemaschine
DE1096168B (de) * 1958-07-29 1960-12-29 Peddinghaus Paul Ferd Fa Widerlager mit Gleitrolle fuer die Biegevorrichtung einer Betoneisenbiegemaschine
DE1920265A1 (de) * 1969-04-22 1970-11-12 Peddinghaus Dr C Ullrich Biegemaschine fuer Staebe,Draehte und Profile
DE1935100C3 (de) * 1969-07-10 1980-07-31 Centralnyj Nautschno-Issledovatelskij Institut Technologii Maschinostroenija, Moskau Verfahren zum Rohrbiegen und Anlage zur Durchführung des Verfahrens
FR2091930A2 (en) * 1970-05-13 1971-01-21 Peddinghaus Carl Ullrich Dr Recovery of nickel from nickel ammonium - carbonate
DE2215490A1 (de) * 1972-03-29 1973-10-04 Peddinghaus Carl Ullrich Dr Biegemaschine fuer insbesondere betonstahlstaebe
DE2221185A1 (de) * 1972-04-29 1973-11-08 Krupp Gmbh Betonstahlbiegemaschine
DE2514369A1 (de) * 1975-04-02 1976-10-14 Peddinghaus Carl Ullrich Dr Widerlagerrolle fuer betonstahlbiegemaschinen
DE2832980C2 (de) * 1978-07-27 1984-11-08 Rigobert Dipl.-Ing. 5000 Köln Schwarze Beschickungsvorrichtung für eine Rohrbiegemaschine
DE2927753A1 (de) * 1979-07-10 1981-02-05 Schwarze Rigobert Vorrichtung zum beschicken und entladen einer rohrbiegemaschine
DE3033300A1 (de) * 1980-09-04 1982-04-01 Rigobert Dipl.-Ing. 5000 Köln Schwarze Rohrbiegemaschine
AT378135B (de) * 1983-05-18 1985-06-25 Evg Entwicklung Verwert Ges Biegemaschine fuer draht- oder bandfoermiges material
DE3416133A1 (de) * 1984-05-02 1985-11-07 Bernd 7530 Pforzheim Schüssler Vorrichtung zum biegen von rohr- oder strangfoermigem material, insbesondere draht
DE3546448A1 (de) * 1985-03-12 1986-09-25 Alpha Maschinenbau AG, Zürich Biegevorrichtung
IT210698Z2 (it) * 1987-05-11 1989-01-11 Oscam Spa Macchina per la piegatura di tondini o simili elementi metallici
IT1235176B (it) * 1989-01-18 1992-06-23 Piegatrici Macch Elettr Cesoia mobile a monte gruppo piegatore e procedimento di piegatura in coda.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20080574A1 (it) * 2008-10-28 2010-04-28 Cml Int Spa Macchina curvatubi con trasmissione perfezionata del moto alla matrice
EP2181780A1 (fr) * 2008-10-28 2010-05-05 CML International S.P.A. Cintreuse à cintrer les tubes avec une transmission du mouvement à l'outil de cintrage améliorée

Also Published As

Publication number Publication date
EP0463132A1 (fr) 1992-01-02
ATA6190A (de) 1994-11-15
DK0463132T3 (da) 1995-01-23
AT399676B (de) 1995-06-26
DE59103855D1 (de) 1995-01-26
GR3014919T3 (en) 1995-05-31
US5203195A (en) 1993-04-20
ATE115446T1 (de) 1994-12-15
JPH04504820A (ja) 1992-08-27
WO1991010519A1 (fr) 1991-07-25
GR920300043T1 (en) 1992-08-26

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