EP0936005A1 - Device for bending metal wires - Google Patents

Device for bending metal wires Download PDF

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Publication number
EP0936005A1
EP0936005A1 EP98440013A EP98440013A EP0936005A1 EP 0936005 A1 EP0936005 A1 EP 0936005A1 EP 98440013 A EP98440013 A EP 98440013A EP 98440013 A EP98440013 A EP 98440013A EP 0936005 A1 EP0936005 A1 EP 0936005A1
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EP
European Patent Office
Prior art keywords
fingers
rotation
axes
shaft
wire
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Granted
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EP98440013A
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German (de)
French (fr)
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EP0936005B1 (en
Inventor
Fabien Casters
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Individual
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Individual
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Priority to DE69805273T priority Critical patent/DE69805273D1/en
Priority to EP98440013A priority patent/EP0936005B1/en
Priority to AT98440013T priority patent/ATE217220T1/en
Publication of EP0936005A1 publication Critical patent/EP0936005A1/en
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Publication of EP0936005B1 publication Critical patent/EP0936005B1/en
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    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire

Definitions

  • the subject of the present invention is a cambering device for metallic wires.
  • the wire from a spool or a boot passes through a rectifier and then is supported by a system which pushes it by the desired length towards the tool bending, which generally includes a bending head, movable in rotation along the axis of the wire, comprising a fixed finger holding the wire and a finger provided with a roller, capable of rotate concentrically with the axis of said fixed finger, according to a determined angular deviation, in order to arch the wire.
  • the change of direction of curvature is realized, since the wire cannot rotate axially, by changing the starting position fingers, which is obtained either by rotating of the bending head, either by reversing the position of the fingers by their retraction in the bending head.
  • this device comprises in a head of mobile bending in rotation around the axis of the wire, of a share two parallel trees, between the ends of which passes transversely, externally to said head of bending, the wire to be bent, said shafts being connected by through a room with two cogwheels identical secured to each other not concentrically by their sides, said shafts each passing axially and jointly one of said gear wheels; on the other hand, for each of said trees, an arc guide path of circle, the guide path from one shaft being coaxial to the other tree; and on the other hand still a cog wheel susceptible to be rotated in one direction or the other, and positioned equidistant from said trees so as to mesh on said cogwheels.
  • Shafts are slidably mounted in the guideways by means of pads in which they are mounted free rotation, said pads being in the form of a segment ring.
  • each of the fingers can be rotated bending finger or holding finger, allows to pass from one direction of curvature to another without requiring retraction, and limiting the rotation time of the bending head.
  • this device lacks reliability over time, mainly due to wear of the sliding shoes, resulting in clearances important which cause inaccuracies in the guidance, which goes against the desired goal namely speed of execution.
  • the object of the present invention is to propose a device for bending of metal wires to remedy this disadvantage.
  • the wire bending device object of the present invention is of the type comprising a bending head movable in rotation about the axis of the wire and comprising two fingers between which said metal wire passes, each said fingers being capable of being rotated concentrically around the other which is then fixed, and it essentially characterized in that said fingers are carried by the end of a tree likely to be led in rotation along one or the other of the axes of said fingers, and carried by first rotating guide means, one of which is concentric with one of said axes while the other is concentric to the other of said axes, each of said first means for guiding in rotation being carried by a second means guiding in rotation, concentric with that of said axes which is not concentric with the first guide means in rotation that it carries.
  • the tree is also carried on the side comprising the fingers, by a guidance system similar to that which carries it on the other side.
  • the rotating guide means consist in bearings.
  • the shaft carries two pinions each coaxial with the axis of one of the fingers, and able to mesh on a wheel toothed carried by a shaft parallel to the axes of said fingers and equidistant from them, and likely to be rotated one way or the other.
  • the bending device according to the invention is of a more reliable operation than that of existing devices, and in particular that of document FR-A-2,744,941, by authorizing a better guidance.
  • This bending head has two flanges 1 and 2 joined together via two spacers 3.
  • the flanges 1 and 2 are crossed perpendicularly by a shaft 4 which carries at its end 40, on the side of the flange 1, two bending fingers 41 and 42 parallel, between which passes a wire 5 to be bent.
  • the end 43 of the shaft 4, opposite the end 40, is mounted in rotation concentrically to the axis YY 'in a flank 20 by through a bearing 21, while the flank 20 is itself mounted in rotation, concentrically to the axis XX ', in the flange 2 by means of a bearing 22.
  • the shaft 4 is also mounted in rotation, concentrically with axis XX ', in a sidewall 10 by means of a bearing 11, while the sidewall 10 is itself mounted in rotation, concentrically to the axis YY ', in the flange 1 by through a bearing 12.
  • This assembly makes it possible to rotate either the finger 41 concentrically to the axis YY 'of finger 42 which then rotates axially, i.e. finger 42 concentrically with axis XX 'of the finger 41 which then rotates axially.
  • the shaft 4 carries, between the flanges 1 and 2, two identical pinions 44 and 45, which are integral with it, the pinion 44 being coaxial with the axis XX 'of the finger 41, while the pinion 45 is coaxial with the axis YY 'of the finger 42.
  • the bending head also includes a toothed wheel 6 carried by a tree, not visible, parallel to the axes XX 'and YY' and equidistant from these, mounted in rotation in the flanges 1 and 2, and driven in rotation by a stepping motor, no shown, the toothed wheel 6 being able to mesh on one either of gables 44 and 45.
  • the bending of a wire 5 is similar to that achieved by means of the device described in document FR-A-2,744,941, namely that, as can be seen in Figure 2, the rotation of the toothed wheel 6 in the direction of arrow A can only lead to the rotation of the pinion 44 along its XX 'in the direction of the arrow B, while the pinion 45 rotates around the axis XX 'resulting in the rotation of the finger 42 around of the finger 41 and the bending of the wire 5 around it.
  • the shaft 4 is rotatably mounted in a sidewall 70 concentric to the axis YY ' via a bearing 71, while the side 70 is mounted in rotation concentrically to the axis XX 'by by means of a bearing 72 in a solid plate 7 flange 1.
  • the fingers 41 and 42 are preferably each provided with a roller in free rotation, not shown, and that the bending of metallic wires of different diameters is possible using rollers of suitable diameters, with however an influence on the radius of curvature.
  • the distance between the bending fingers is variable, it is chosen according to the diameter of the wire and the radius of curvature longed for.
  • cambering device also allows the bending of tubes.

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

Abstract

The tool consists of a rotary bending head with the wire (5) passing between two fingers (41,42). The fingers are carried on the end of a shaft (4) which can be driven so it rotates about the axis (XX',YY') of either finger. The shaft is supported by guides (11,21) which are concentric with the axes of the two shafts, each guide being set in a second guide (12,22) which is not concentric with the first.

Description

La présente invention a pour objet un dispositif de cambrage de fils métalliques.The subject of the present invention is a cambering device for metallic wires.

Il existe actuellement deux types de machines à cambrer les fils métalliques, celles utilisées pour les grandes séries qui comportent des outils de cambrage placés dans une position correspondant au profil à donner aux fils métalliques, et celles utilisées pour les petites séries, qui permettent de passer d'un profil à un autre sans nécessiter, contrairement aux précédentes, de changement d'outils.There are currently two types of bending machines metal wires, those used for large series which have bending tools placed in one position corresponding to the profile to be given to the metallic wires, and those used for small series, which allow switch from one profile to another without requiring, unlike to the previous ones, change of tools.

Les machines de cette deuxième catégorie mettent pratiquement toutes en oeuvre le même procédé de cambrage qui consiste à faire passer le fil entre deux doigts dont l'un est fixe et l'autre mobile en rotation autour dudit doigt fixe.The machines of this second category put practically all implement the same arching process which consists in pass the wire between two fingers, one of which is fixed and the other mobile in rotation around said fixed finger.

En pratique, le fil issu d'une bobine ou d'une botte, passe par un redresseur, puis est pris en charge par un système d'amenage qui le pousse de la longueur voulue vers l'outil de cambrage, lequel comporte généralement une tête de cambrage, mobile en rotation selon l'axe du fil, comprenant un doigt fixe de maintien du fil et un doigt muni d'un galet, susceptible de tourner concentriquement à l'axe dudit doigt fixe, selon un écart angulaire déterminé, afin de cambrer le fil.In practice, the wire from a spool or a boot, passes through a rectifier and then is supported by a system which pushes it by the desired length towards the tool bending, which generally includes a bending head, movable in rotation along the axis of the wire, comprising a fixed finger holding the wire and a finger provided with a roller, capable of rotate concentrically with the axis of said fixed finger, according to a determined angular deviation, in order to arch the wire.

Le changement de sens de courbure est réalisé, puisque le fil ne peut tourner axialement, en modifiant la position de départ des doigts, ce qui est obtenu soit en effectuant une rotation de la tête de cambrage, soit en inversant la position des doigts par leur escamotage dans la tête de cambrage. The change of direction of curvature is realized, since the wire cannot rotate axially, by changing the starting position fingers, which is obtained either by rotating of the bending head, either by reversing the position of the fingers by their retraction in the bending head.

Ces machines à commande numérique sont d'une grande souplesse d'utilisation, et permettent de réaliser des séries de pièces allant de quelques dizaines à plusieurs milliers.These CNC machines are very flexible of use, and allow to realize series of parts ranging from a few tens to several thousand.

Victimes de leur succès, elles sont utilisées pour des séries plus importantes car avec l'expérience, leur programmation devient aisée.Victims of their success, they are used for series more important because with experience, their programming becomes easy.

Face à de grandes séries, on constate rapidement leur lenteur par rapport aux machines à outils fixes, le temps d'escamotage par exemple, représentant en effet 40% du temps total de cambrage.Faced with large series, we quickly notice their slowness compared to stationary tool machines, the retraction time for example, representing 40% of the total time arching.

Afin de pallier cet inconvénient la Demanderesse a proposé dans le document FR-A-2.744.941 un dispositif de cambrage permettant de faire passer le fil métallique transversalement entre deux doigts parallèles, dont chacun est susceptible d'être mené en rotation concentriquement à l'autre qui alors est fixe.In order to overcome this drawback, the Applicant has proposed in document FR-A-2,744,941 a cambering device allowing to pass the metal wire transversely between two parallel fingers, each of which is likely to be led in rotation concentrically to the other which is then fixed.

De manière plus précise, ce dispositif comporte dans une tête de cambrage mobile en rotation autour de l'axe du fil, d'une part deux arbres parallèles, entre les extrémités desquels passe transversalement, extérieurement à ladite tête de cambrage, le fil à cambrer, lesdits arbres étant reliés par l'intermédiaire d'une pièce comprenant deux roues dentées identiques solidarisées l'une à l'autre non concentriquement par leurs flancs, lesdits arbres traversant chacun axialement et solidairement l'une desdites roues dentées; d'autre part, pour chacun desdits arbres, un chemin de guidage en arc de cercle, le chemin de guidage d'un arbre étant coaxial à l'autre arbre; et d'autre part encore une roue dentée susceptible d'être menée en rotation dans un sens ou dans l'autre, et positionnée à équidistance desdits arbres de manière à s'engrener sur lesdites roues dentées. More specifically, this device comprises in a head of mobile bending in rotation around the axis of the wire, of a share two parallel trees, between the ends of which passes transversely, externally to said head of bending, the wire to be bent, said shafts being connected by through a room with two cogwheels identical secured to each other not concentrically by their sides, said shafts each passing axially and jointly one of said gear wheels; on the other hand, for each of said trees, an arc guide path of circle, the guide path from one shaft being coaxial to the other tree; and on the other hand still a cog wheel susceptible to be rotated in one direction or the other, and positioned equidistant from said trees so as to mesh on said cogwheels.

Les arbres sont montés glissants dans les chemins de guidage par l'intermédiaire de patins dans lesquels ils sont montés en libre rotation, lesdits patins étant en forme de segment d'anneau.Shafts are slidably mounted in the guideways by means of pads in which they are mounted free rotation, said pads being in the form of a segment ring.

Ce dispositif, du fait que chacun des doigts peut être tour à tour doigt de cambrage ou doigt de maintien, permet de passer d'un sens de courbure à un autre sans nécessiter d'escamotage, et en limitant le temps de rotation de la tête de cambrage.This device, because each of the fingers can be rotated bending finger or holding finger, allows to pass from one direction of curvature to another without requiring retraction, and limiting the rotation time of the bending head.

De plus, il autorise un accroissement de la vitesse d'exécution du fait qu'en cours de cambrage le fil est toujours en contact avec les deux doigts.In addition, it allows an increase in execution speed the fact that during bending the wire is always in contact with both fingers.

Ce dispositif présente toutefois des inconvénients notamment en ce que sa construction est délicate, plus particulièrement en ce qui concerne les chemins de guidage, du fait que ceux-ci doivent se croiser.However, this device has drawbacks, in particular in what its construction is delicate, especially in with regard to the guideways, the fact that these must intersect.

D'autre part, on a toutefois pu constater que ce dispositif fait défaut de fiabilité dans le temps, du fait notamment d'une usure des patins de glissement, avec pour conséquence des jeux importants qui engendrent des imprécisions du guidage, ce qui va à l'encontre du but recherché à savoir la vitesse d'exécution.On the other hand, it has however been observed that this device lacks reliability over time, mainly due to wear of the sliding shoes, resulting in clearances important which cause inaccuracies in the guidance, which goes against the desired goal namely speed of execution.

La présente invention a pour but de proposer un dispositif de cambrage de fils métalliques permettant de remédier à cet inconvénient.The object of the present invention is to propose a device for bending of metal wires to remedy this disadvantage.

Le dispositif de cambrage de fils métalliques objet de la présente invention est du type comprenant une tête de cambrage mobile en rotation autour de l'axe du fil et comportant deux doigts entre lesquels passe ledit fil métallique, chacun desdits doigts étant susceptible d'être mené en rotation concentriquement autour de l'autre qui est alors fixe, et il se caractérise essentiellement en ce que lesdits doigts sont portés par le bout d'un arbre susceptible d'être mené en rotation selon l'un ou l'autre des axes desdits doigts, et porté par des premiers moyens de guidage en rotation dont l'un est concentrique à l'un desdits axes tandis que l'autre est concentrique à l'autre desdits axes, chacun desdits premiers moyens de guidage en rotation étant porté par un second moyen de guidage en rotation, concentrique à celui desdits axes auquel n'est pas concentrique le premier moyen de guidage en rotation qu'il porte.The wire bending device object of the present invention is of the type comprising a bending head movable in rotation about the axis of the wire and comprising two fingers between which said metal wire passes, each said fingers being capable of being rotated concentrically around the other which is then fixed, and it essentially characterized in that said fingers are carried by the end of a tree likely to be led in rotation along one or the other of the axes of said fingers, and carried by first rotating guide means, one of which is concentric with one of said axes while the other is concentric to the other of said axes, each of said first means for guiding in rotation being carried by a second means guiding in rotation, concentric with that of said axes which is not concentric with the first guide means in rotation that it carries.

Selon une caractéristique additionnelle du dispositif selon l'invention, l'arbre est également porté du côté comportant les doigts, par un système de guidage analogue à celui qui le porte de l'autre côté.According to an additional characteristic of the device according to the invention, the tree is also carried on the side comprising the fingers, by a guidance system similar to that which carries it on the other side.

Selon une autre caractéristique additionnelle du dispositif selon l'invention, les moyens de guidage en rotation consistent en des roulements.According to another additional characteristic of the device according to the invention, the rotating guide means consist in bearings.

Selon une autre caractéristique additionnelle du dispositif selon l'invention, l'arbre porte deux pignons chacun coaxial à l'axe d'un des doigts, et aptes à s'engrener sur une roue dentée portée par un arbre parallèle aux axes desdits doigts et équidistant de ceux-ci, et susceptible d'être menée en rotation dans un sens ou dans l'autre.According to another additional characteristic of the device according to the invention, the shaft carries two pinions each coaxial with the axis of one of the fingers, and able to mesh on a wheel toothed carried by a shaft parallel to the axes of said fingers and equidistant from them, and likely to be rotated one way or the other.

Le dispositif de cambrage selon l'invention est d'un fonctionnement plus fiable que celui des dispositifs existants, et notamment celui du document FR-A-2.744.941, en autorisant un meilleur guidage.The bending device according to the invention is of a more reliable operation than that of existing devices, and in particular that of document FR-A-2,744,941, by authorizing a better guidance.

Les avantages et les caractéristiques du dispositif selon l'invention, ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente un mode de réalisation non limitatif.The advantages and characteristics of the device according to the invention will emerge more clearly from the description which follows and which relates to the attached drawing, which represents a non-limiting embodiment.

Dans le dessin annexé :

  • la figure 1 représente une vue schématique en coupe d'un dispositif de cambrage de fils métalliques selon l'invention ;
  • la figure 2 représente une vue schématique en plan du même dispositif.
In the attached drawing:
  • Figure 1 shows a schematic sectional view of a metal wire bending device according to the invention;
  • Figure 2 shows a schematic plan view of the same device.

Si on se réfère à la figure 1, on peut voir la tête de cambrage d'un dispositif de cambrage selon l'invention.If we refer to Figure 1, we can see the bending head of a bending device according to the invention.

Cette tête de cambrage comporte deux flasques 1 et 2 solidarisés entre eux par l'intermédiaire de deux entretoises 3.This bending head has two flanges 1 and 2 joined together via two spacers 3.

Les flasques 1 et 2 sont traversés perpendiculairement par un arbre 4 qui porte à son bout 40, du côté du flasque 1, deux doigts de cambrage 41 et 42 parallèles, entre lesquels passe un fil métallique 5 à cambrer.The flanges 1 and 2 are crossed perpendicularly by a shaft 4 which carries at its end 40, on the side of the flange 1, two bending fingers 41 and 42 parallel, between which passes a wire 5 to be bent.

L'extrémité 43 de l'arbre 4, opposée au bout 40, est montée en rotation concentriquement à l'axe YY' dans un flanc 20 par l'intermédiaire d'un roulement 21, tandis que le flanc 20 est lui-même monté en rotation, concentriquement à l'axe XX', dans le flasque 2 par l'intermédiaire d'un roulement 22.The end 43 of the shaft 4, opposite the end 40, is mounted in rotation concentrically to the axis YY 'in a flank 20 by through a bearing 21, while the flank 20 is itself mounted in rotation, concentrically to the axis XX ', in the flange 2 by means of a bearing 22.

L'arbre 4 est également monté en rotation, concentriquement à l'axe XX', dans un flanc 10 par l'intermédiaire d'un roulement 11, tandis que le flanc 10 est lui-même monté en rotation, concentriquement à l'axe YY', dans le flasque 1 par l'intermédiaire d'un roulement 12. The shaft 4 is also mounted in rotation, concentrically with axis XX ', in a sidewall 10 by means of a bearing 11, while the sidewall 10 is itself mounted in rotation, concentrically to the axis YY ', in the flange 1 by through a bearing 12.

Ce montage permet de faire tourner soit le doigt 41 concentriquement à l'axe YY' du doigt 42 qui alors tourne axialement, soit le doigt 42 concentriquement à l'axe XX' du doigt 41 qui alors tourne axialement.This assembly makes it possible to rotate either the finger 41 concentrically to the axis YY 'of finger 42 which then rotates axially, i.e. finger 42 concentrically with axis XX 'of the finger 41 which then rotates axially.

D'autre part, l'arbre 4 porte, entre les flasques 1 et 2, deux pignons identiques 44 et 45, qui lui sont solidaires, le pignon 44 étant coaxial à l'axe XX' du doigt 41, tandis que le pignon 45 est coaxial à l'axe YY' du doigt 42.On the other hand, the shaft 4 carries, between the flanges 1 and 2, two identical pinions 44 and 45, which are integral with it, the pinion 44 being coaxial with the axis XX 'of the finger 41, while the pinion 45 is coaxial with the axis YY 'of the finger 42.

La tête de cambrage comporte également une roue dentée 6 portée par un arbre, non visible, parallèle aux axes XX' et YY' et équidistant de ceux-ci, monté en rotation dans les flasques 1 et 2, et mené en rotation par un moteur pas à pas, non représenté, la roue dentée 6 étant apte à s'engrener sur l'un ou l'autre des pignons 44 et 45.The bending head also includes a toothed wheel 6 carried by a tree, not visible, parallel to the axes XX 'and YY' and equidistant from these, mounted in rotation in the flanges 1 and 2, and driven in rotation by a stepping motor, no shown, the toothed wheel 6 being able to mesh on one either of gables 44 and 45.

Le cambrage d'un fil 5 est similaire à celui réalisé au moyen du dispositif décrit dans le document FR-A-2.744.941, à savoir que, comme cela est visible sur la figure 2, la rotation de la roue dentée 6 dans le sens de la flèche A ne peut aboutir qu'à la rotation du pignon 44 selon son XX' dans le sens de la flèche B, tandis que le pignon 45 entre en rotation autour de l'axe XX' avec pour conséquence la rotation du doigt 42 autour du doigt 41 et le cambrage du fil 5 autour de celui-ci.The bending of a wire 5 is similar to that achieved by means of the device described in document FR-A-2,744,941, namely that, as can be seen in Figure 2, the rotation of the toothed wheel 6 in the direction of arrow A can only lead to the rotation of the pinion 44 along its XX 'in the direction of the arrow B, while the pinion 45 rotates around the axis XX 'resulting in the rotation of the finger 42 around of the finger 41 and the bending of the wire 5 around it.

Inversement, la rotation de la roue dentée 6 dans le sens de la flèche C ne peut aboutir qu'à la rotation du pignon 45 autour de son axe YY' dans le sens de la flèche D, tandis que le pignon 44 entre en rotation autour de l'axe YY' avec pour conséquence la rotation du doigt 41 autour du doigt 42.Conversely, the rotation of the toothed wheel 6 in the direction of the arrow C can only lead to the rotation of the pinion 45 around of its axis YY 'in the direction of arrow D, while the pinion 44 rotates around the axis YY 'with for consequently the rotation of the finger 41 around the finger 42.

Le montage particulier de l'arbre 4 dans les flasques 1 et 2, à savoir que les roulements 11 et 21 ne sont pas de même axe, de même que les roulements 12 et 22, permet qu'un pignon 44 ou 45, soit toujours en contact avec la roue dentée 6.The particular mounting of the shaft 4 in the flanges 1 and 2, at know that bearings 11 and 21 are not on the same axis, same as bearings 12 and 22, allows that a pinion 44 or 45, is always in contact with the toothed wheel 6.

Toutefois, étant donné l'importance des efforts supportés par l'arbre 4 à son extrémité 40 et la distance séparant les flasques 1 et 2, un guidage de l'arbre similaire à celui monté dans le flasque 2, est prévu du côté de l'extrémité 40 de l'arbre 4.However, given the importance of the efforts supported by the shaft 4 at its end 40 and the distance separating the flanges 1 and 2, a shaft guide similar to that mounted in the flange 2, is provided on the end side 40 of tree 4.

Ainsi, entre les doigts 41 et 42 et le flasque 1, l'arbre 4 est monté en rotation dans un flanc 70 concentriquement à l'axe YY' par l'intermédiaire d'un roulement 71, tandis que le flanc 70 est monté en rotation concentriquement à l'axe XX' par l'intermédiaire d'un roulement 72 dans une plaque 7 solidaire du flasque 1.Thus, between fingers 41 and 42 and the flange 1, the shaft 4 is rotatably mounted in a sidewall 70 concentric to the axis YY ' via a bearing 71, while the side 70 is mounted in rotation concentrically to the axis XX 'by by means of a bearing 72 in a solid plate 7 flange 1.

On notera que les doigts 41 et 42 sont de préférence chacun munis d'un galet en rotation libre, non représenté, et que le cambrage de fils métalliques de différents diamètres est possible en utilisant des galets de diamètres adéquats, avec toutefois une influence sur le rayon de courbure.Note that the fingers 41 and 42 are preferably each provided with a roller in free rotation, not shown, and that the bending of metallic wires of different diameters is possible using rollers of suitable diameters, with however an influence on the radius of curvature.

En outre, l'entraxe des doigts de pliage est variable, il est choisi en fonction du diamètre du fil et du rayon de courbure désiré.In addition, the distance between the bending fingers is variable, it is chosen according to the diameter of the wire and the radius of curvature longed for.

On notera que le dispositif de cambrage selon l'invention permet également le cambrage de tubes.Note that the cambering device according to the invention also allows the bending of tubes.

Claims (5)

Dispositif de cambrage de fils métalliques du type comprenant une tête de cambrage mobile en rotation autour de l'axe du fil (5) et comportant deux doigts (41, 42) entre lesquels passe ledit fil métallique (5), chacun desdits doigts (41, 42) étant susceptible d'être mené en rotation concentriquement autour de l'autre qui est alors fixe, et il se caractérise essentiellement en ce que lesdits doigts (41, 42) sont portés par le bout (40) d'un arbre (4) susceptible d'être mené en rotation selon l'un ou l'autre des axes (XX', YY') desdits doigts (41, 42), et porté par des premiers moyens de guidage en rotation (11, 21) dont l'un est concentrique à l'un desdits axes tandis que l'autre est concentrique à l'autre desdits axes, chacun desdits premiers moyens de guidage en rotation (11, 21) étant porté par un second moyen de guidage en rotation (12, 22), concentrique à celui desdits axes (XX', YY') auquel n'est pas concentrique le premier moyen de guidage en rotation (11, 21) qu'il porte.Wire bending device of the type comprising a movable bending head rotating around the axis of the wire (5) and comprising two fingers (41, 42) between which pass said metal wire (5), each of said fingers (41, 42) being capable of being rotated concentrically around the other which is then fixed, and it essentially characterized in that said fingers (41, 42) are carried by the end (40) of a shaft (4) capable of being driven in rotation along one or other of the axes (XX ', YY') of said fingers (41, 42), and carried by first means of rotational guide (11, 21) one of which is concentric with one of said axes while the other is concentric with the other said axes, each of said first guide means in rotation (11, 21) being carried by a second guide means in rotation (12, 22), concentric with that of said axes (XX ', YY') which is not concentric with the first guide means in rotation (11, 21) that it carries. Dispositif selon la revendication 1, caractérisé en ce que l'arbre (4) est également porté du côté comportant les doigts (41, 42), par un système de guidage (71, 70, 72) analogue à celui (21, 20, 22) qui le porte de l'autre côté.Device according to claim 1, characterized in that the shaft (4) is also carried on the side comprising the fingers (41, 42), by a guide system (71, 70, 72) similar to the one (21, 20, 22) who wears it on the other side. Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que les moyens de guidage en rotation consistent en des roulements(11, 12, 21, 22, 71, 72).Device according to claim 1 or claim 2, characterized in that the means for guiding in rotation consist of bearings (11, 12, 21, 22, 71, 72). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que, l'arbre (4) porte deux pignons (44, 45) chacun coaxial à l'axe d'un des doigts (41, 42), et aptes à s'engrener sur une roue dentée (6) par un arbre parallèle aux axes desdits doigts et équidistant de ceux-ci, et susceptible d'être menée en rotation dans un sens ou dans l'autre.Device according to any one of the claims previous, characterized in that, the shaft (4) carries two pinions (44, 45) each coaxial with the axis of one of the fingers (41, 42), and able to mesh on a toothed wheel (6) by a shaft parallel to the axes of said fingers and equidistant from them, and likely to be rotated in one direction or in the other. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les doigts (41, 42) sont chacun munis d'un galet en libre rotation.Device according to any one of the claims previous, characterized in that the fingers (41, 42) are each fitted with a freely rotating roller.
EP98440013A 1998-02-04 1998-02-04 Device for bending metal wires Expired - Lifetime EP0936005B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69805273T DE69805273D1 (en) 1998-02-04 1998-02-04 Device for bending metal wires
EP98440013A EP0936005B1 (en) 1998-02-04 1998-02-04 Device for bending metal wires
AT98440013T ATE217220T1 (en) 1998-02-04 1998-02-04 DEVICE FOR BENDING METAL WIRES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98440013A EP0936005B1 (en) 1998-02-04 1998-02-04 Device for bending metal wires

Publications (2)

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EP0936005A1 true EP0936005A1 (en) 1999-08-18
EP0936005B1 EP0936005B1 (en) 2002-05-08

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EP98440013A Expired - Lifetime EP0936005B1 (en) 1998-02-04 1998-02-04 Device for bending metal wires

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EP (1) EP0936005B1 (en)
AT (1) ATE217220T1 (en)
DE (1) DE69805273D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805188A1 (en) * 2000-02-21 2001-08-24 Latour Et Fils Sa WIRE CAMBRIDGE DEVICE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106202A1 (en) * 1971-02-10 1972-08-24 Golownoje spezialnoje konstruktorskoje bjuro po metscheskowo oborudowanija, Rostowna-Donu (Sowjetunion) Coiled tube mfr - by a high-performance machine employing two drive shafts
FR2177934A1 (en) * 1972-03-29 1973-11-09 Peddinghaus Carl Ullrich Dr
JPS6160218A (en) * 1984-08-30 1986-03-27 Sanden Corp Apparatus for producing zigzag pipe
FR2685228A1 (en) * 1991-12-23 1993-06-25 Automation Franc Machine for bending a rod-, bar-, tube-, wire- or similar-type element
FR2744941A1 (en) * 1996-02-16 1997-08-22 Scdc Sarl Method of bending metal wires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106202A1 (en) * 1971-02-10 1972-08-24 Golownoje spezialnoje konstruktorskoje bjuro po metscheskowo oborudowanija, Rostowna-Donu (Sowjetunion) Coiled tube mfr - by a high-performance machine employing two drive shafts
FR2177934A1 (en) * 1972-03-29 1973-11-09 Peddinghaus Carl Ullrich Dr
JPS6160218A (en) * 1984-08-30 1986-03-27 Sanden Corp Apparatus for producing zigzag pipe
FR2685228A1 (en) * 1991-12-23 1993-06-25 Automation Franc Machine for bending a rod-, bar-, tube-, wire- or similar-type element
FR2744941A1 (en) * 1996-02-16 1997-08-22 Scdc Sarl Method of bending metal wires

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 222 (M - 504) 2 August 1986 (1986-08-02) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805188A1 (en) * 2000-02-21 2001-08-24 Latour Et Fils Sa WIRE CAMBRIDGE DEVICE
WO2001062411A1 (en) * 2000-02-21 2001-08-30 Ateliers De Constructions Mecaniques Latour Et Fils Wire bending device

Also Published As

Publication number Publication date
DE69805273D1 (en) 2002-06-13
ATE217220T1 (en) 2002-05-15
EP0936005B1 (en) 2002-05-08

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