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EP1458505A1 - Tube bending machine and its right and/or left bending device - Google Patents

Tube bending machine and its right and/or left bending device

Info

Publication number
EP1458505A1
EP1458505A1 EP02796898A EP02796898A EP1458505A1 EP 1458505 A1 EP1458505 A1 EP 1458505A1 EP 02796898 A EP02796898 A EP 02796898A EP 02796898 A EP02796898 A EP 02796898A EP 1458505 A1 EP1458505 A1 EP 1458505A1
Authority
EP
European Patent Office
Prior art keywords
bending
tube
jaw
jaws
machine
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
EP02796898A
Other languages
German (de)
French (fr)
Other versions
EP1458505B1 (en
Inventor
Serge Cappello
Jean-Paul Chastan
Jean-Paul Bruyas
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.)
SILFAX GROUP
Original Assignee
Silfax
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 Silfax filed Critical Silfax
Publication of EP1458505A1 publication Critical patent/EP1458505A1/en
Application granted granted Critical
Publication of EP1458505B1 publication Critical patent/EP1458505B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21D7/021—Construction of forming members having more than one groove

Definitions

  • the present invention relates to a machine for bending tubes and more particularly to a bending device allowing the bending of a tube either to the left in a so-called clockwise direction, or to the right in a counterclockwise direction.
  • a tube bending machine comprising a pivoting bending jig, a bending arm which can pivot 180 ° around the axis of the bending jig and a clamping jaw supported by the bending arm.
  • the bending jig has two jig parts arranged one above the other, one being designed for bending the tube to the right and the other for bending the tube to the left.
  • the clamping jaw is designed for both right bending and left bending.
  • the clamping jaw respectively has a jaw element on each side of a plane transverse to the clamping jaw and containing the axis of the bending jig.
  • the lower jaw element of the clamping jaw acts with the lower jig portion while the upper jaw member acts with the upper jig portion for clamping a portion of tubing.
  • the object of the tube bending machine according to the present invention is to allow either the bending to the left or the bending to the right of the same tube, by means of a fixed bending roller on the bending arm.
  • the machine for bending tubes according to the present invention comprises:
  • a fixed frame provided along its longitudinal axis with a guide rail on which slides a movable carriage secured to a barrel, allowing via an internal clamping mandrel the guiding and immobilization in rotation and in translation of a tube to be bent, ⁇ * at one of its ends a bending head, a bending roller and a bending arm which pivots around the vertical axis XX 'of the bending head for the formation of the tube, ⁇ * a bending arm provided with a jaw support which moves horizontally in the direction of the bending head, said jaw support being integral with a clamping jaw which comprises at least one jaw for bending in a clockwise direction of the tube and at least one jaw for bending in a counterclockwise direction of the tube, said jaws being fixed between them, *> a bending roller which is fixed on the bending arm and which comprises at least one jaw for bending in a clockwise direction of the tube and at least one jaw for bending in a counterclockwise direction of the tube, said jaws being fixed
  • a second strip support which comprises at least one jaw for the tight support of the tube during its bending in a counterclockwise direction.
  • the machine for bending tubes comprises a clamping jaw comprising at least two jaws which are offset laterally with respect to each other.
  • the machine for bending tubes comprises a clamping jaw comprising at least two jaws located one above the other and which are separated by a housing.
  • the machine for bending tubes comprises in the clamping jaw a housing which has a height which is greater than that provided for a jaw.
  • the tube bending machine comprises a clamping jaw comprising three jaws which are offset laterally with respect to each other to form, between the jaws located one above the other, a housing.
  • the machine for bending tubes comprises a bending arm comprising a bending roller which pivots at the same time as the latter around the vertical axis XX 'of the bending head, when bending to the right or to the left. of the tube.
  • the machine for bending tubes according to the present invention comprises a bending roller comprising at least two jaws which are offset laterally from each other and on either side of the vertical axis XX 'of the bending head.
  • the machine for bending tubes according to the present invention comprises a first strip support comprising at least one jaw and at least one housing.
  • the machine for bending tubes comprises a first strip support, the number of jaws depends on the number of jaws integral with the clamping jaw and the bending roller allowing the bending to the left or in a clockwise direction of the tube.
  • the machine for bending tubes comprises a second strip support, the number of jaws depending on the number of jaws integral with the clamping jaw and the bending roller allowing the bending in a counterclockwise direction of the tube.
  • the machine for bending tubes according to the present invention comprises a second strip support, each jaw of which is positioned at the same level as that of the corresponding housing of the clamping jaw.
  • the machine for bending tubes comprises a second strip support comprising at least one jaw and at least one housing.
  • the machine for bending tubes according to the present invention comprises a second strip support comprising above and below the jaw a housing.
  • the machine for bending tubes comprises simultaneous and inverted drive means of the first and second strip supports in a horizontal translation in the direction of the tube.
  • Figure 1 is a perspective view illustrating a machine for bending tubes according to the present invention.
  • Figures 2a to 2c are views showing in detail the clamping jaw and the bending roller of the bending machine according to the present invention
  • Figures 3 to 6 are perspective views showing the bending device in a clockwise direction of a tube according to the present invention.
  • Figures 7 and 8 are perspective views showing the bending device in a counterclockwise direction of a tube according to the present invention.
  • FIG. 1 and 2a to 2c There is shown in Figures 1 and 2a to 2c a bending machine 1 whose fixed frame carries at one of its ends a bending head 2 around which pivots an arm bending 3 for the formation of a tube 4 either in a clockwise direction, or in a counterclockwise direction.
  • the fixed frame comprises, along its longitudinal axis, a guide rail, not shown, on which slides a movable carriage 5 which approaches and moves away from the bending head 2 by means of a reduction motor.
  • the mobile carriage 5 comprises a barrel or a barrel 6, allowing, by means of an internal clamping mandrel, the guiding and immobilization in rotation and in translation of the tube 4 to be bent.
  • the bending arm 3 comprises a jaw support 7 which moves horizontally in the direction of the bending head 2.
  • the jaw support 7 is integral with a clamping jaw 8 which has different jaw profiles 9, 10 and 11 and the number of which can vary according to the number of bends to the right and / or to the left which it is necessary to make on tube 4.
  • the jaws 9, 10 and 11 are integral with the clamping jaw 8 and fixed relative to each other.
  • the latter are arranged on the clamping jaw 8, so that they are offset laterally with respect to each other to form at least one housing 22 between two jaws.
  • This housing 22 is of a height slightly greater than that provided for a bending jaw.
  • the clamping jaw 8 comprises three jaws 9, 10 and 11 which are offset laterally with respect to each other to form between the jaws 9 and 11, being located one above the other, a housing 22.
  • the bending arm 3 comprises a bending roller 12 which pivots at the same time as the latter around the vertical axis XX 'of the bending head 2 during bending to the right or to the left of the tube 4.
  • the roller bending 12 is fixed in rotation relative to the bending arm 3.
  • the bending roller 12 is made up of different jaw profiles 13, 14 and 15, the number of which can vary depending on the number of bends to the right and / or to left which it is necessary to make on the tube 4. It can be seen that the number of jaws on the bending roller 12 is equivalent to that provided on the clamping jaw 8.
  • the jaws 13, 14 and 15 are integral with the bending roller 12 and fixed relative to each other.
  • jaws 13, 14 and 15 of the bending roller 12 are offset laterally with respect to each other and on either side of the vertical axis XX 'of the bending head 2.
  • the different jaw profiles 13, 14 and 15 of the bending roller 12 are respectively arranged opposite the jaws 9, 10 and 11 of the clamping jaw 8 in order to bend the tube 4.
  • the bending machine 1 comprises, at the level of the bending head 2 and on either side of the tube 4 to be bent, a first strip support 16 and a second strip support 17 which are arranged one opposite of the other and which move respectively in a horizontal translation in the direction of the tube 4 and in a horizontal translation in the direction of the bending roller 12.
  • the first strip support 16 moves in a horizontal translation in the direction of the bending head 2, of the bending arm 3 carrying the bending roller 12 by means of a drive device 23, which can be a jack hydraulic or electric or any other movement transmission system.
  • the second strip support 17 moves in a horizontal translation in the direction of the bending head 2, of the bending arm 3 carrying the bending roller 12 by means of a drive device 24, which can be a jack hydraulic or electric or any other movement transmission system.
  • the first and second strip supports 16 and 17 are moved in a horizontal translation in the direction of the tube 4 with a view to clamping and immobilizing it by means of a drive means which is unique for the two strip supports 16 , 17.
  • a drive means which is unique for the two strip supports 16 , 17.
  • the first strip support 16 comprises two jaws 18, 19 which bear against the tube 4 so as to be able to accompany and maintain said tube 4 during bending in a clockwise direction.
  • the number of jaws provided on the first slide support 16 depends on the number of jaws integral with the clamping jaw 8 and the bending roller 12 allowing the bending in a clockwise direction of the tube 4.
  • the jaws 18 and 19 of the first strip support 16 are separated from each other by a housing 20 whose height d corresponds to a height slightly greater than that of the jaws 10, 14 of the clamping jaw 8 and bending roller 12.
  • the housing 20 of the first strip support 16 is suitable for receiving the jaws 10 and 14 of the clamping jaw 8 and of the bending roller 12 in order to be able to carry out the bending in a clockwise direction of the tube 4.
  • the strip support 16 comprises at least one jaw 18, 19 and at least one housing 20, the number of which depends on the number of jaws allowing bending in a counterclockwise direction of the tube 4.
  • the second strip support 17 includes a jaw 21 which bears against the tube 4 so as to be able to accompany and maintain said tube 4 when it is bent to the right.
  • the second strip support 17 has a jaw 21, there is provided above and below the latter a housing 25 which is suitable for receiving the jaws 9, 11 and 13, 15 of the clamping jaw 8 and the bending roller 12 in order to be able to bend in a counterclockwise direction of the tube 4.
  • the strip support 17 comprises at least one jaw 21 and at least one housing 25, the number of which depends on the number of jaws allowing bending in a clockwise direction of the tube 4. Also the number of jaws provided on the second slide support 17 depends on the number of jaws integral with the clamping jaw 8 and the bending roller 12 allowing the bending in a counterclockwise direction of the tube 4.
  • the bending head 2 comprises displacement means in order to be able to move horizontally and vertically relative to the fixed frame, that is to say in directions lying in planes perpendicular to that containing the longitudinal axis of the machine 1 or of the fixed frame, which is generally embodied by the tube 4.
  • the bending in a clockwise direction of the tube 4 is carried out when the bending arm 3 and the bending roller 12 pivot around the bending head 2 according to a clockwise rotation relative to the vertical axis XX 'of said head.
  • This support for the tube 4 by the strip support 16 is obtained by means of the housing 20 provided between the jaws 18 and 19 which makes it possible to receive the jaw 10 of the bending arm 3 and the jaw 14 of the bending roller 12.
  • the housing 20 of the first strip support 16 allows the jaws 10, 14 to be released allowing bending in a counterclockwise direction during the clockwise rotation of the bending arm 3 and the bending roller 12 around the 'axis XX' of the bending head 2.
  • the second bending in a clockwise direction is carried out after a translation and a rotation of the tube 4 around its longitudinal axis in order to release the first bending from the bending jaws.
  • the second bending in a clockwise direction of the tube 4 is carried out when the bending arm 3 and the bending roller 12 pivot around the bending head 2 according to a clockwise rotation relative to the vertical axis XX 'of said head.
  • This support for the tube 4 by the strip support 16 is obtained by means of the housing 20 provided between the jaws 18 and 19 which receives the jaw 10 of the bending arm 3 and the jaw 14 of the bending roller 12.
  • the housing 20 of the first strip support 16 allows the jaws 10, 14 to be released allowing bending in a counterclockwise direction during the clockwise rotation of the bending arm 3 around the axis XX 'of the bending head 2.
  • FIGS. 7 and 8 illustrate a bending in a counterclockwise direction of the tube 4 which is obtained by means of the jaw 10 of the clamping jaw 8, of the jaw 14 of the bending roller 12 and of the jaw 21 of the second strip support 17.
  • the bending in an anti-clockwise direction is carried out after a translation and a rotation of the tube 4 around its longitudinal axis in order to release the first two bends in a clockwise direction from the bending jaws.
  • the bending head 2 and the bending arm 3 carrying the bending roller 12 are moved in a vertical direction downward relative to the frame of the bending machine 1. This vertical translation makes it possible to release the tube 4 from the jaw support 8 and bending roller 12.
  • the bending arm 3 and the bending roller 12 are rotated around the bending head 2 to come to be positioned to the left of the vertical axis XX '.
  • the bending head 2 and the bending arm 3 are then moved vertically upwards to return to the level of the tube 4 so that the latter is positioned to the left of the axis XX 'of the bending head 2 and between the jaws 10 and 14 of the clamping jaw 8 and of the bending roller 12.
  • the bending in a counterclockwise direction of the tube 4 is carried out when the bending arm 3 and the bending roller 12 pivot around the bending head 2 in a rotation from left to right with respect to the vertical axis XX ' of said head.
  • the jaw 21 of the strip support 17 is moved in a horizontal translation in the direction of the bending roller 12 to allow tight support of the tube 4.
  • This support for the tube 4 by the strip support 17 is obtained by means of the housing 22 provided between the jaws 9 and 11 of the clamping jaw 8 which receives the jaw 21 of the strip support 17.
  • This support for the tube 4 by the slide support 17 is also obtained by means of the housings 25 provided above and below the jaw 21 so as to receive the jaws 9, 13 and 11, 15 respectively of the clamping jaw 8 and bending roller 12.
  • the housing 22 of the clamping jaw 8 and the housing 25 of the strip support 17 allow the jaws 9, 13 to be released; 11, 15 and 21 thus allowing the bending in a counterclockwise direction of the tube 4 via the jaws 10 and 14 of the clamping jaw 8 and the bending roller 12 which are driven in a counterclockwise rotation around the axis XX 'of the bending head 2.
  • the bending machine 1 can perform other bends in a counterclockwise direction of the tube 4 if the clamping jaw 8 and the bending roller 12 have other jaws allowing this type of bending.

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

Abstract

The tube bending machine comprises a bending arm (3) provided with a jaw support (7) which moves horizontally towards the bending head (2). The jaw support is integral with a clamping jaw (8) comprising jaws (9,11) for bending the tube (4) in a clockwise direction and a jaw for bending the tube in an anti-clockwise direction. A bending roller (12), stationary on the bending arm, comprises jaws (13,15) for bending the tube in a clockwise direction and a jaw for bending the tube in an anti-clockwise direction. The jaws are laterally offset relative to each other and on either side the bending head vertical axis. A first gib support (16) comprises jaws (18,19) for the clamped accompaniment of the tube when it is being bent in a clockwise direction and a second gib support (17) comprises a jaw (21) for clamped accompaniment of the tube when bending bent in the anti-clockwise direction.

Description

MACHINE A CINTRER LES TUBES ET SON DISPOSITIF DE CINTRAGE A GAUCHE ET/OU TUBE BENDING MACHINE AND ITS LEFT AND / OR BENDING DEVICE
A DROITETO THE RIGHT
La présente invention est relative à une machine à cintrer les tubes et plus particulièrement à un dispositif de cintrage permettant le cintrage d'un tube soit à gauche selon une direction dite horaire, soit à droite selon une direction anti- horaire.The present invention relates to a machine for bending tubes and more particularly to a bending device allowing the bending of a tube either to the left in a so-called clockwise direction, or to the right in a counterclockwise direction.
Lors d'un cintrage suivant une direction horaire, le bras de cintrage se déplace de la droite vers la gauche autour de la tête de cintrage.When bending in a clockwise direction, the bending arm moves from right to left around the bending head.
Lors d'un cintrage suivant une direction anti-horaire, le bras de cintrage se déplace de la gauche vers la droite autour de la tête de cintrage.When bending counterclockwise, the bending arm moves from left to right around the bending head.
On connaît d'après le brevet européen EP 649 687 une machine à cintrer les tubes comportant un gabarit de cintrage pivotant, un bras de cintrage pouvant pivoter de 180° degrés autour de l'axe du gabarit de cintrage et une mâchoire de serrage supportée par le bras de cintrage.Known from European patent EP 649 687 is a tube bending machine comprising a pivoting bending jig, a bending arm which can pivot 180 ° around the axis of the bending jig and a clamping jaw supported by the bending arm.
Le gabarit de cintrage présente deux parties de gabarit disposées l'une au-dessus de l'autre, l'une étant conçue pour le cintrage du tube à droite et l'autre pour le cintrage du tube à gauche.The bending jig has two jig parts arranged one above the other, one being designed for bending the tube to the right and the other for bending the tube to the left.
La mâchoire de serrage est conçue aussi bien pour le cintrage à droite que pour le cintrage à gauche. La mâchoire de serrage présente respectivement un élément de mâchoire de chaque coté d'un plan transversal à la mâchoire de serrage et contenant l'axe du gabarit de cintrage.The clamping jaw is designed for both right bending and left bending. The clamping jaw respectively has a jaw element on each side of a plane transverse to the clamping jaw and containing the axis of the bending jig.
L'élément de mâchoire inférieur de la mâchoire de serrage agit avec la partie de gabarit inférieur tandis que l'élément de mâchoire supérieur agit avec la partie de gabarit supérieur pour le serrage d'une portion de tube.The lower jaw element of the clamping jaw acts with the lower jig portion while the upper jaw member acts with the upper jig portion for clamping a portion of tubing.
La machine à cintrer les tubes suivant la présente invention a pour objet de permettre soit le cintrage à gauche, soit le cintrage à droite d'un même tube, au moyen d'un galet de cintrage fixe sur le bras de cintrage.The object of the tube bending machine according to the present invention is to allow either the bending to the left or the bending to the right of the same tube, by means of a fixed bending roller on the bending arm.
La machine à cintrer les tubes suivant la présente invention comporte :The machine for bending tubes according to the present invention comprises:
*> un bâti fixe pourvu suivant son axe longitudinal d'un rail de guidage sur lequel coulisse un chariot mobile solidaire d'un canon, permettant par l'intermédiaire d'un mandrin de serrage interne le guidage et l'immobilisation en rotation et en translation d'un tube à cintrer, <* à l'une de ses extrémités une tête de cintrage, un galet de cintrage et un bras de cintrage qui pivote autour de l'axe vertical XX' de la tête de cintrage pour la formation du tube, <* un bras de cintrage pourvu d'un support de mors qui se déplace horizontalement en direction de la tête de cintrage, ledit support de mors étant solidaire d'un mors de serrage qui comporte au moins une mâchoire pour le cintrage suivant une direction horaire du tube et au moins une mâchoire pour le cintrage suivant une direction anti-horaire du tube, lesdites mâchoires étant fixe entre elles, *> un galet de cintrage qui est fixe sur le bras de cintrage et qui comporte au moins une mâchoire pour le cintrage suivant une direction horaire du tube et au moins une mâchoire pour le cintrage suivant une direction anti-horaire du tube, lesdites mâchoires étant décalées latéralement les unes par rapport aux autres et de part et d'autre de l'axe vertical XX' de la tête de cintrage, *> un premier support de réglette qui comporte au moins une mâchoire pour l'accompagnement serré du tube lors de son cintrage suivant une direction horaire,*> a fixed frame provided along its longitudinal axis with a guide rail on which slides a movable carriage secured to a barrel, allowing via an internal clamping mandrel the guiding and immobilization in rotation and in translation of a tube to be bent, <* at one of its ends a bending head, a bending roller and a bending arm which pivots around the vertical axis XX 'of the bending head for the formation of the tube, <* a bending arm provided with a jaw support which moves horizontally in the direction of the bending head, said jaw support being integral with a clamping jaw which comprises at least one jaw for bending in a clockwise direction of the tube and at least one jaw for bending in a counterclockwise direction of the tube, said jaws being fixed between them, *> a bending roller which is fixed on the bending arm and which comprises at least one jaw for bending in a clockwise direction of the tube and at least one jaw for bending in a counterclockwise direction of the tube, said jaws being offset laterally with respect to each other and on either side of the vertical axis XX 'of the bending head, *> a first er strip support which comprises at least one jaw for the tight support of the tube during its bending in a clockwise direction,
<* et un second support de réglette qui comporte au moins une mâchoire pour l'accompagnement serré du tube lors de son cintrage suivant une direction anti-horaire.<* and a second strip support which comprises at least one jaw for the tight support of the tube during its bending in a counterclockwise direction.
La machine à cintrer les tubes suivant la présente invention comporte un mors de serrage comprenant au moins deux mâchoires qui sont décalées latéralement les unes par rapport aux autres.The machine for bending tubes according to the present invention comprises a clamping jaw comprising at least two jaws which are offset laterally with respect to each other.
La machine à cintrer les tubes suivant la présente invention comporte un mors de serrage comprenant au moins deux mâchoires se trouvant l'une au dessus de l'autre et qui sont séparées par un logement.The machine for bending tubes according to the present invention comprises a clamping jaw comprising at least two jaws located one above the other and which are separated by a housing.
La machine à cintrer les tubes suivant la présente invention comporte dans le mors de serrage un logement qui présente une hauteur qui est supérieure à celle prévue pour une mâchoire.The machine for bending tubes according to the present invention comprises in the clamping jaw a housing which has a height which is greater than that provided for a jaw.
La machine à cintrer les tubes suivant la présente invention comporte un mors de serrage comprenant trois mâchoires qui sont décalées latéralement les unes par rapport aux autres pour former, entre les mâchoires se trouvant l'une au dessus de l'autre, un logement.The tube bending machine according to the present invention comprises a clamping jaw comprising three jaws which are offset laterally with respect to each other to form, between the jaws located one above the other, a housing.
La machine à cintrer les tubes suivant la présente invention comporte un bras de cintrage comprenant un galet de cintrage qui pivote en même temps que ce dernier autour de l'axe vertical XX' de la tête de cintrage, lors des cintrages à droite ou à gauche du tube.The machine for bending tubes according to the present invention comprises a bending arm comprising a bending roller which pivots at the same time as the latter around the vertical axis XX 'of the bending head, when bending to the right or to the left. of the tube.
La machine à cintrer les tubes suivant la présente invention comporte un galet de cintrage comprenant au moins deux mâchoires qui sont décalées latéralement les unes des autres et de part et d'autre de l'axe vertical XX' de la tête de cintrage. La machine à cintrer les tubes suivant la présente invention comporte un premier support de réglette comprenant au moins une mâchoire et au moins un logement.The machine for bending tubes according to the present invention comprises a bending roller comprising at least two jaws which are offset laterally from each other and on either side of the vertical axis XX 'of the bending head. The machine for bending tubes according to the present invention comprises a first strip support comprising at least one jaw and at least one housing.
La machine à cintrer les tubes suivant la présente invention comporte un premier support de réglette dont le nombre de mâchoires dépend du nombre de mâchoires solidaires du mors de serrage et du galet de cintrage permettant le cintrage à gauche ou suivant une direction horaire du tube.The machine for bending tubes according to the present invention comprises a first strip support, the number of jaws depends on the number of jaws integral with the clamping jaw and the bending roller allowing the bending to the left or in a clockwise direction of the tube.
La machine à cintrer les tubes suivant la présente invention comporte un second support de réglette dont le nombre de mâchoires dépend du nombre de mâchoires solidaires du mors de serrage et du galet de cintrage permettant le cintrage suivant une direction anti-horaire du tube.The machine for bending tubes according to the present invention comprises a second strip support, the number of jaws depending on the number of jaws integral with the clamping jaw and the bending roller allowing the bending in a counterclockwise direction of the tube.
La machine à cintrer les tubes suivant la présente invention comporte un second support de réglette dont chaque mâchoire est positionnée au même niveau que celui du logement correspondant du mors de serrage.The machine for bending tubes according to the present invention comprises a second strip support, each jaw of which is positioned at the same level as that of the corresponding housing of the clamping jaw.
La machine à cintrer les tubes suivant la présente invention comporte un second support de réglette comprenant au moins une mâchoire et au moins un logement.The machine for bending tubes according to the present invention comprises a second strip support comprising at least one jaw and at least one housing.
La machine à cintrer les tubes suivant la présente invention comporte un second support de réglette comprenant au dessus et en dessous de la mâchoire un logement.The machine for bending tubes according to the present invention comprises a second strip support comprising above and below the jaw a housing.
La machine à cintrer les tubes suivant la présente invention comporte des moyens d'entraînement simultanés et inversés des premiers et seconds supports de réglette suivant une translation horizontale en direction du tube.The machine for bending tubes according to the present invention comprises simultaneous and inverted drive means of the first and second strip supports in a horizontal translation in the direction of the tube.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The description which follows with reference to the appended drawings, given by way of nonlimiting examples, will make it possible to better understand the invention, the characteristics which it presents and the advantages which it is capable of providing:
Figure 1 est une vue en perspective illustrant une machine à cintrer les tubes suivant la présente invention.Figure 1 is a perspective view illustrating a machine for bending tubes according to the present invention.
Figures 2a à 2c sont des vues montrant en détail le mors de serrage et le galet de cintrage de la machine à cintrer suivant la présente inventionFigures 2a to 2c are views showing in detail the clamping jaw and the bending roller of the bending machine according to the present invention
Figures 3 à 6 sont des vues en perspective représentant le dispositif de cintrage suivant une direction horaire d'un tube suivant la présente invention.Figures 3 to 6 are perspective views showing the bending device in a clockwise direction of a tube according to the present invention.
Figures 7 et 8 sont des vues en perspective représentant le dispositif de cintrage suivant une direction anti-horaire d'un tube suivant la présente invention.Figures 7 and 8 are perspective views showing the bending device in a counterclockwise direction of a tube according to the present invention.
On a montré en figures 1 et 2a à 2c une machine à cintrer 1 dont le bâti fixe porte à l'une de ses extrémités une tête de cintrage 2 autour de laquelle pivote un bras de cintrage 3 pour la formation d'un tube 4 soit suivant une direction horaire, soit suivant une direction anti-horaire.There is shown in Figures 1 and 2a to 2c a bending machine 1 whose fixed frame carries at one of its ends a bending head 2 around which pivots an arm bending 3 for the formation of a tube 4 either in a clockwise direction, or in a counterclockwise direction.
Lors d'un cintrage suivant une direction horaire, le bras de cintrage 3 se déplace de la droite vers la gauche autour de la tête de cintrage 2.When bending in a clockwise direction, the bending arm 3 moves from right to left around the bending head 2.
Lors d'un cintrage suivant une direction anti-horaire, le bras de cintrage 3 se déplace de la gauche vers la droite autour de la tête de cintrage 2.When bending in a counterclockwise direction, the bending arm 3 moves from left to right around the bending head 2.
Le bâti fixe comprend, suivant son axe longitudinal, un rail de guidage non représenté, sur lequel coulisse un chariot mobile 5 qui se rapproche et s'éloigne de la tête de cintrage 2 au moyen d'un moto réducteur.The fixed frame comprises, along its longitudinal axis, a guide rail, not shown, on which slides a movable carriage 5 which approaches and moves away from the bending head 2 by means of a reduction motor.
Le chariot mobile 5 comporte un canon ou un fût 6, permettant par l'intermédiaire d'un mandrin de serrage interne, le guidage et l'immobilisation en rotation et en translation du tube 4 à cintrer.The mobile carriage 5 comprises a barrel or a barrel 6, allowing, by means of an internal clamping mandrel, the guiding and immobilization in rotation and in translation of the tube 4 to be bent.
Le bras de cintrage 3 comporte un support de mors 7 qui se déplace horizontalement en direction de la tête de cintrage 2.The bending arm 3 comprises a jaw support 7 which moves horizontally in the direction of the bending head 2.
Le support de mors 7 est solidaire d'un mors de serrage 8 qui comporte différents profils de mâchoires 9, 10 et 11 et dont le nombre peut varier en fonction du nombre de cintrage à droite et/ou à gauche qu'il est nécessaire de réaliser sur le tube 4.The jaw support 7 is integral with a clamping jaw 8 which has different jaw profiles 9, 10 and 11 and the number of which can vary according to the number of bends to the right and / or to the left which it is necessary to make on tube 4.
Les mâchoires 9, 10 et 11 sont solidaires du mors de serrage 8 et fixes les unes par rapport aux autres.The jaws 9, 10 and 11 are integral with the clamping jaw 8 and fixed relative to each other.
En fonction du nombre de mâchoires, ces dernières sont disposées sur le mors de serrage 8, de manière qu'elles soient décalées latéralement les unes par rapport aux autres pour constituer entre deux mâchoires au moins un logement 22.Depending on the number of jaws, the latter are arranged on the clamping jaw 8, so that they are offset laterally with respect to each other to form at least one housing 22 between two jaws.
Ce logement 22 est d'une hauteur légèrement supérieure à celle prévue pour une mâchoire de cintrage.This housing 22 is of a height slightly greater than that provided for a bending jaw.
On constate, dans l'exemple de réalisation selon la présente invention, que le mors de serrage 8 comporte trois mâchoires 9, 10 et 11 qui sont décalées latéralement les unes par rapport aux autres pour former entre les mâchoires 9 et 11 , se trouvant l'une au dessus de l'autre, un logement 22.It can be seen, in the embodiment according to the present invention, that the clamping jaw 8 comprises three jaws 9, 10 and 11 which are offset laterally with respect to each other to form between the jaws 9 and 11, being located one above the other, a housing 22.
Le bras de cintrage 3 comporte un galet de cintrage 12 qui pivote en même temps que ce dernier autour de l'axe vertical XX' de la tête de cintrage 2 lors des cintrages à droite ou à gauche du tube 4. Ainsi, le galet de cintrage 12 est fixe en rotation par rapport au bras de cintrage 3.The bending arm 3 comprises a bending roller 12 which pivots at the same time as the latter around the vertical axis XX 'of the bending head 2 during bending to the right or to the left of the tube 4. Thus, the roller bending 12 is fixed in rotation relative to the bending arm 3.
Le galet de cintrage 12 est constitué de différents profils de mâchoires 13, 14 et 15 dont le nombre peut varier en fonction du nombre de cintrage à droite et/ou à gauche qu'il est nécessaire de réaliser sur le tube 4. On constate que le nombre de mâchoires sur le galet de cintrage 12 est équivalent à celui prévu sur le mors de serrage 8.The bending roller 12 is made up of different jaw profiles 13, 14 and 15, the number of which can vary depending on the number of bends to the right and / or to left which it is necessary to make on the tube 4. It can be seen that the number of jaws on the bending roller 12 is equivalent to that provided on the clamping jaw 8.
Les mâchoires 13, 14 et 15 sont solidaires du galet de cintrage 12 et fixes les unes par rapport aux autres.The jaws 13, 14 and 15 are integral with the bending roller 12 and fixed relative to each other.
On note que les mâchoires 13, 14 et 15 du galet de cintrage 12 sont décalées latéralement les unes par rapport aux autres et de part et d'autre de l'axe vertical XX' de la tête de cintrage 2.It will be noted that the jaws 13, 14 and 15 of the bending roller 12 are offset laterally with respect to each other and on either side of the vertical axis XX 'of the bending head 2.
Les différents profils de mâchoires 13, 14 et 15 du galet de cintrage 12 sont respectivement disposés en face des mâchoires 9, 10 et 11 du mors de serrage 8 pour réaliser les cintrages du tube 4.The different jaw profiles 13, 14 and 15 of the bending roller 12 are respectively arranged opposite the jaws 9, 10 and 11 of the clamping jaw 8 in order to bend the tube 4.
On note que le profil des mâchoires 9, 11 du mors de serrage 8 et le profil des mâchoires 13, 15 du galet de cintrage 12 permettent de réaliser des cintrages du tube 4 suivant une direction horaire.It will be noted that the profile of the jaws 9, 11 of the clamping jaw 8 and the profile of the jaws 13, 15 of the bending roller 12 make it possible to bend the tube 4 in a clockwise direction.
Par contre le profil de la mâchoire 10 du mors de serrage 8 et celui de la mâchoire 14 du galet de cintrage 12 permettent de réaliser des cintrages du tube 4 suivant une direction anti-horaire.Against by the profile of the jaw 10 of the clamping jaw 8 and that of the jaw 14 of the bending roller 12 make it possible to bend the tube 4 in a counterclockwise direction.
La machine à cintrer 1 comporte, au niveau de la tête de cintrage 2 et de part et d'autre du tube 4 à cintrer, un premier support de réglette 16 et un second support de réglette 17 qui sont disposés l'un en face de l'autre et qui se déplacent respectivement suivant une translation horizontale en direction du tube 4 et suivant une translation horizontale en direction du galet de cintrage 12.The bending machine 1 comprises, at the level of the bending head 2 and on either side of the tube 4 to be bent, a first strip support 16 and a second strip support 17 which are arranged one opposite of the other and which move respectively in a horizontal translation in the direction of the tube 4 and in a horizontal translation in the direction of the bending roller 12.
Le premier support de réglette 16 se déplace suivant une translation horizontale en direction de la tête de cintrage 2, du bras de cintrage 3 portant le galet de cintrage 12 par l'intermédiaire d'un dispositif d'entraînement 23, qui peut être un vérin hydraulique ou électrique ou tout autre système de transmission de mouvement.The first strip support 16 moves in a horizontal translation in the direction of the bending head 2, of the bending arm 3 carrying the bending roller 12 by means of a drive device 23, which can be a jack hydraulic or electric or any other movement transmission system.
Le second support de réglette 17 se déplace suivant une translation horizontale en direction de la tête de cintrage 2, du bras de cintrage 3 portant le galet de cintrage 12 par l'intermédiaire d'un dispositif d'entraînement 24, qui peut être un vérin hydraulique ou électrique ou tout autre système de transmission de mouvement.The second strip support 17 moves in a horizontal translation in the direction of the bending head 2, of the bending arm 3 carrying the bending roller 12 by means of a drive device 24, which can be a jack hydraulic or electric or any other movement transmission system.
Les premiers et seconds supports de réglette 16 et 17 sont déplacés suivant une translation horizontale en direction du tube 4 en vue de son serrage et son immobilisation par l'intermédiaire d'un moyen d'entraînement qui est unique pour les deux supports de réglette 16, 17. Ainsi, lorsque le premier support de réglette 16 est déplacé en direction du tube 4 pour son immobilisation, le second support de réglette 17 s'éloigne automatiquement dudit tube. Inversement, lorsque le second support de réglette 17 se rapproche du tube 4, le premier support de réglette 16 s'éloigne de ce dernier.The first and second strip supports 16 and 17 are moved in a horizontal translation in the direction of the tube 4 with a view to clamping and immobilizing it by means of a drive means which is unique for the two strip supports 16 , 17. Thus, when the first strip support 16 is moved towards the tube 4 for its immobilization, the second strip support 17 automatically moves away from said tube. Conversely, when the second strip support 17 approaches the tube 4, the first strip support 16 moves away from the latter.
Le premier support de réglette 16 comporte deux mâchoires 18, 19 qui viennent en appui contre le tube 4 pour pouvoir accompagner et maintenir ledit tube 4 lors des cintrages suivant une direction horaire.The first strip support 16 comprises two jaws 18, 19 which bear against the tube 4 so as to be able to accompany and maintain said tube 4 during bending in a clockwise direction.
Le nombre de mâchoires prévu sur le premier support de réglette 16 dépend du nombre de mâchoires solidaires du mors de serrage 8 et du galet de cintrage 12 permettant le cintrage suivant une direction horaire du tube 4.The number of jaws provided on the first slide support 16 depends on the number of jaws integral with the clamping jaw 8 and the bending roller 12 allowing the bending in a clockwise direction of the tube 4.
On note que les mâchoires 18 et 19 du premier support de réglette 16 sont séparées l'une de l'autre par un logement 20 dont la hauteur d correspond à une hauteur légèrement supérieure à celle des mâchoires 10, 14 du mors de serrage 8 et du galet de cintrage 12.Note that the jaws 18 and 19 of the first strip support 16 are separated from each other by a housing 20 whose height d corresponds to a height slightly greater than that of the jaws 10, 14 of the clamping jaw 8 and bending roller 12.
Le logement 20 du premier support de réglette 16 est propre à recevoir les mâchoires 10 et 14 du mors de serrage 8 et du galet de cintrage 12 pour pouvoir réaliser les cintrages suivant une direction horaire du tube 4.The housing 20 of the first strip support 16 is suitable for receiving the jaws 10 and 14 of the clamping jaw 8 and of the bending roller 12 in order to be able to carry out the bending in a clockwise direction of the tube 4.
En effet, lors des cintrages suivant une direction horaire du tube 4, le premier support de réglette 16 se déplace en direction du galet de cintrage 12 qui est solidaire à ce niveau de la mâchoire 14.In fact, during bending in a clockwise direction of the tube 4, the first strip support 16 moves in the direction of the bending roller 12 which is integral at this level with the jaw 14.
Ainsi le support de réglette 16 comporte au moins une mâchoire 18, 19 et au moins un logement 20 dont le nombre dépend du nombre de mâchoires permettant les cintrages suivant une direction anti-horaire du tube 4.Thus the strip support 16 comprises at least one jaw 18, 19 and at least one housing 20, the number of which depends on the number of jaws allowing bending in a counterclockwise direction of the tube 4.
Le second support de réglette 17 comporte une mâchoire 21 qui vient en appui contre le tube 4 pour pouvoir accompagner et maintenir ledit tube 4 lors de son cintrage à droite.The second strip support 17 includes a jaw 21 which bears against the tube 4 so as to be able to accompany and maintain said tube 4 when it is bent to the right.
Lorsque le second support de réglette 17 comporte une mâchoire 21 , il est prévu au dessus et en dessous de cette dernière un logement 25 qui est propre à recevoir les mâchoires 9, 11 et 13, 15 du mors de serrage 8 et du galet de cintrage 12 pour pouvoir réaliser les cintrages suivant une direction anti-horaire du tube 4.When the second strip support 17 has a jaw 21, there is provided above and below the latter a housing 25 which is suitable for receiving the jaws 9, 11 and 13, 15 of the clamping jaw 8 and the bending roller 12 in order to be able to bend in a counterclockwise direction of the tube 4.
Ainsi le support de réglette 17 comporte au moins une mâchoire 21 et au moins un logement 25 dont le nombre dépend du nombre de mâchoires permettant les cintrages suivant une direction horaire du tube 4. Egalement le nombre de mâchoires prévu sur le second support de réglette 17 dépend du nombre de mâchoires solidaires du mors de serrage 8 et du galet de cintrage 12 permettant le cintrage suivant une direction anti-horaire du tube 4.Thus the strip support 17 comprises at least one jaw 21 and at least one housing 25, the number of which depends on the number of jaws allowing bending in a clockwise direction of the tube 4. Also the number of jaws provided on the second slide support 17 depends on the number of jaws integral with the clamping jaw 8 and the bending roller 12 allowing the bending in a counterclockwise direction of the tube 4.
La tête de cintrage 2 comporte des moyens de déplacement pour pouvoir se déplacer horizontalement et verticalement par rapport au bâti fixe, c'est à dire dans des directions se trouvant dans des plans perpendiculaires à celui contenant l'axe longitudinal de la machine 1 ou du bâti fixe, qui est généralement matérialisé par le tube 4.The bending head 2 comprises displacement means in order to be able to move horizontally and vertically relative to the fixed frame, that is to say in directions lying in planes perpendicular to that containing the longitudinal axis of the machine 1 or of the fixed frame, which is generally embodied by the tube 4.
On a représenté, par exemple, en figures 3 et 4 le premier cintrage suivant une direction horaire du tube 4 qui est obtenu au moyen de la mâchoire 11 du mors de serrage 8, de la mâchoire 15 du galet de cintrage 12 et de la mâchoire 19 du premier support de réglette 16.There is shown, for example, in Figures 3 and 4 the first bending in a clockwise direction of the tube 4 which is obtained by means of the jaw 11 of the clamping jaw 8, the jaw 15 of the bending roller 12 and the jaw 19 of the first strip support 16.
On note que pour réaliser un cintrage suivant une direction horaire du tube 4, ce dernier doit se trouver à droite de l'axe vertical XX' de la tête de cintrage 2 selon la représentation de la figure 1.It is noted that in order to carry out bending in a clockwise direction of the tube 4, the latter must be on the right of the vertical axis XX ′ of the bending head 2 according to the representation in FIG.
Le cintrage suivant une direction horaire du tube 4 est réalisé lorsque le bras de cintrage 3 et le galet de cintrage 12 pivotent autour de la tête de cintrage 2 selon une rotation horaire par rapport à l'axe vertical XX' de ladite tête.The bending in a clockwise direction of the tube 4 is carried out when the bending arm 3 and the bending roller 12 pivot around the bending head 2 according to a clockwise rotation relative to the vertical axis XX 'of said head.
Lors de la rotation du bras de cintrage 3 et du galet de cintrage 12 autour de la tête de cintrage 2, la mâchoire 19 du support de réglette 16 est déplacée suivant une translation horizontale en direction du galet de cintrage 12 pour permettre un accompagnement serré du tube 4.When the bending arm 3 and the bending roller 12 rotate around the bending head 2, the jaw 19 of the strip support 16 is moved in a horizontal translation in the direction of the bending roller 12 to allow tight support of the tube 4.
Cet accompagnement du tube 4 par le support de réglette 16 est obtenu par l'intermédiaire du logement 20 prévu entre les mâchoires 18 et 19 qui permet de recevoir la mâchoire 10 du bras de cintrage 3 et la mâchoire 14 du galet de cintrage 12.This support for the tube 4 by the strip support 16 is obtained by means of the housing 20 provided between the jaws 18 and 19 which makes it possible to receive the jaw 10 of the bending arm 3 and the jaw 14 of the bending roller 12.
En effet, le logement 20 du premier support de réglette 16 permet le dégagement des mâchoires 10, 14 permettant le cintrage suivant une direction anti-horaire lors de la rotation en sens horaire du bras de cintrage 3 et du galet de cintrage 12 autour de l'axe XX' de la tête de cintrage 2.In fact, the housing 20 of the first strip support 16 allows the jaws 10, 14 to be released allowing bending in a counterclockwise direction during the clockwise rotation of the bending arm 3 and the bending roller 12 around the 'axis XX' of the bending head 2.
On a montré, par exemple, en figures 5 et 6 le second cintrage suivant une direction horaire du tube 4 qui est obtenu au moyen de la mâchoire 9 du mors de serrage 8, de la mâchoire 13 du galet de cintrage 12 et de la mâchoire 18 du premier support de réglette 16.We have shown, for example, in Figures 5 and 6 the second bending in a clockwise direction of the tube 4 which is obtained by means of the jaw 9 of the clamping jaw 8, the jaw 13 of the bending roller 12 and the jaw 18 of the first strip support 16.
Le second cintrage suivant une direction horaire est réalisé après une translation et une rotation du tube 4 autour de son axe longitudinal afin de dégager le premier cintrage des mâchoires de cintrage. Le second cintrage suivant une direction horaire du tube 4 est réalisé lorsque le bras de cintrage 3 et le galet de cintrage 12 pivotent autour de la tête de cintrage 2 selon une rotation horaire par rapport à l'axe vertical XX' de ladite tête.The second bending in a clockwise direction is carried out after a translation and a rotation of the tube 4 around its longitudinal axis in order to release the first bending from the bending jaws. The second bending in a clockwise direction of the tube 4 is carried out when the bending arm 3 and the bending roller 12 pivot around the bending head 2 according to a clockwise rotation relative to the vertical axis XX 'of said head.
Lors de la rotation du bras de cintrage 3 et du galet de cintrage 12 autour de la tête de cintrage 2, la mâchoire 18 du support de réglette 16 est déplacée suivant une translation horizontale en direction du galet cintrage 12 pour permettre un accompagnement serré du tube 4.When the bending arm 3 and the bending roller 12 rotate around the bending head 2, the jaw 18 of the strip support 16 is moved in a horizontal translation in the direction of the bending roller 12 to allow tight support for the tube 4.
Cet accompagnement du tube 4 par le support de réglette 16 est obtenu par l'intermédiaire du logement 20 prévu entre les mâchoires 18 et 19 qui reçoit la mâchoire 10 du bras de cintrage 3 et la mâchoire 14 du galet de cintrage 12.This support for the tube 4 by the strip support 16 is obtained by means of the housing 20 provided between the jaws 18 and 19 which receives the jaw 10 of the bending arm 3 and the jaw 14 of the bending roller 12.
En effet, le logement 20 du premier support de réglette 16 permet le dégagement des mâchoires 10, 14 permettant le cintrage suivant une direction anti-horaire lors de la rotation en sens horaire du bras de cintrage 3 autour de l'axe XX' de la tête de cintrage 2.In fact, the housing 20 of the first strip support 16 allows the jaws 10, 14 to be released allowing bending in a counterclockwise direction during the clockwise rotation of the bending arm 3 around the axis XX 'of the bending head 2.
On a illustré en figures 7 et 8 un cintrage suivant une direction anti-horaire du tube 4 qui est obtenu au moyen de la mâchoire 10 du mors de serrage 8, de la mâchoire 14 du galet de cintrage 12 et de la mâchoire 21 du second support de réglette 17.FIGS. 7 and 8 illustrate a bending in a counterclockwise direction of the tube 4 which is obtained by means of the jaw 10 of the clamping jaw 8, of the jaw 14 of the bending roller 12 and of the jaw 21 of the second strip support 17.
Le cintrage suivant une direction anti-horaire est réalisé après une translation et une rotation du tube 4 autour de son axe longitudinal afin de dégager les deux premiers cintrages suivant une direction horaire des mâchoires de cintrage.The bending in an anti-clockwise direction is carried out after a translation and a rotation of the tube 4 around its longitudinal axis in order to release the first two bends in a clockwise direction from the bending jaws.
On note que pour réaliser un cintrage suivant une direction anti-horaire du tube 4 ce dernier doit se trouver à gauche de l'axe vertical XX' de la tête de cintrage 2.Note that to carry out bending in a counterclockwise direction of the tube 4, the latter must be on the left of the vertical axis XX 'of the bending head 2.
Pour cela, la tête de cintrage 2 et le bras de cintrage 3 portant le galet de cintrage 12 sont déplacés suivant une direction verticale vers le bas par rapport au bâti de la machine à cintrer 1. Cette translation verticale permet de dégager le tube 4 du support de mors 8 et du galet de cintrage 12.For this, the bending head 2 and the bending arm 3 carrying the bending roller 12 are moved in a vertical direction downward relative to the frame of the bending machine 1. This vertical translation makes it possible to release the tube 4 from the jaw support 8 and bending roller 12.
Le bras de cintrage 3 et le galet de cintrage 12 sont entraînés en rotation autour de la tête de cintrage 2 pour venir se positionner à gauche de l'axe vertical XX'.The bending arm 3 and the bending roller 12 are rotated around the bending head 2 to come to be positioned to the left of the vertical axis XX '.
La tête de cintrage 2 et le bras de cintrage 3 sont ensuite déplacés verticalement vers le haut pour revenir au niveau du tube 4 pour que ce dernier soit positionné à gauche de l'axe XX' de la tête de cintrage 2 et entre les mâchoires 10 et 14 du mors de serrage 8 et du galet de cintrage 12.The bending head 2 and the bending arm 3 are then moved vertically upwards to return to the level of the tube 4 so that the latter is positioned to the left of the axis XX 'of the bending head 2 and between the jaws 10 and 14 of the clamping jaw 8 and of the bending roller 12.
Le cintrage suivant une direction anti-horaire du tube 4 est réalisé lorsque le bras de cintrage 3 et le galet de cintrage 12 pivotent autour de la tête de cintrage 2 selon une rotation de gauche vers la droite par rapport à l'axe vertical XX' de ladite tête. Lors de la rotation du bras de cintrage 3 et du galet de cintrage 12 autour de la tête de cintrage 2, la mâchoire 21 du support de réglette 17 est déplacée suivant une translation horizontale en direction du galet de cintrage 12 pour permettre un accompagnement serré du tube 4.The bending in a counterclockwise direction of the tube 4 is carried out when the bending arm 3 and the bending roller 12 pivot around the bending head 2 in a rotation from left to right with respect to the vertical axis XX ' of said head. During the rotation of the bending arm 3 and the bending roller 12 around the bending head 2, the jaw 21 of the strip support 17 is moved in a horizontal translation in the direction of the bending roller 12 to allow tight support of the tube 4.
Cet accompagnement du tube 4 par le support de réglette 17 est obtenu par l'intermédiaire du logement 22 prévu entre les mâchoires 9 et 11 du mors de serrage 8 qui reçoit la mâchoire 21 du support de réglette 17.This support for the tube 4 by the strip support 17 is obtained by means of the housing 22 provided between the jaws 9 and 11 of the clamping jaw 8 which receives the jaw 21 of the strip support 17.
Cet accompagnement du tube 4 par le support de réglette 17 est également obtenu par l'intermédiaire des logements 25 prévus au dessus et au dessous de la mâchoire 21 afin de recevoir respectivement les mâchoires 9, 13 et 11 , 15 du mors de serrage 8 et du galet de cintrage 12.This support for the tube 4 by the slide support 17 is also obtained by means of the housings 25 provided above and below the jaw 21 so as to receive the jaws 9, 13 and 11, 15 respectively of the clamping jaw 8 and bending roller 12.
Ainsi, le logement 22 du mors de serrage 8 et les logements 25 du support de réglette 17 permettent le dégagement des mâchoires 9, 13; 11, 15 et 21 permettant ainsi le cintrage suivant une direction anti-horaire du tube 4 par l'intermédiaire des mâchoires 10 et 14 du mors de serrage 8 et du galet de cintrage 12 qui sont entraînés dans une rotation en sens anti-horaire autour de l'axe XX' de la tête de cintrage 2.Thus, the housing 22 of the clamping jaw 8 and the housing 25 of the strip support 17 allow the jaws 9, 13 to be released; 11, 15 and 21 thus allowing the bending in a counterclockwise direction of the tube 4 via the jaws 10 and 14 of the clamping jaw 8 and the bending roller 12 which are driven in a counterclockwise rotation around the axis XX 'of the bending head 2.
La machine à cintrer 1 peut effectuer d'autres cintrages suivant une direction antihoraire du tube 4 si le mors de serrage 8 et le galet de cintrage 12 comportaient d'autres mâchoires permettant ce type de cintrage.The bending machine 1 can perform other bends in a counterclockwise direction of the tube 4 if the clamping jaw 8 and the bending roller 12 have other jaws allowing this type of bending.
Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécutions décrits par tout autre équivalent. It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the details of executions described by any other equivalent.

Claims

REVENDICATIONS
1. Machine à cintrer les tubes comportant un bâti fixe pourvu, suivant son axe longitudinal, d'un rail de guidage sur lequel coulisse un chariot mobile (5) solidaire d'un canon (6) permettant par l'intermédiaire d'un mandrin de serrage interne le guidage et l'immobilisation en rotation et en translation d'un tube (4) à cintrer, à l'une de ses extrémités une tête de cintrage (2), un galet de cintrage (12) et un bras de cintrage (3) qui pivote autour de l'axe vertical XX' de la tête de cintrage (2) pour la formation du tube (4), caractérisée en ce qu'elle comprend :1. Machine for bending tubes comprising a fixed frame provided, along its longitudinal axis, with a guide rail on which slides a movable carriage (5) integral with a barrel (6) allowing via a mandrel internal clamping guide and immobilization in rotation and in translation of a tube (4) to be bent, at one of its ends a bending head (2), a bending roller (12) and an arm bending (3) which pivots about the vertical axis XX 'of the bending head (2) for the formation of the tube (4), characterized in that it comprises:
*> un bras de cintrage (3) pourvu d'un support de mors (7) qui se déplace horizontalement en direction de la tête de cintrage (2), ledit support de mors (7) étant solidaire d'un mors de serrage (8) qui comporte au moins une mâchoire (9, 11) pour le cintrage suivant une direction horaire du tube (4) et au moins une mâchoire (10) pour le cintrage suivant une direction anti-horaire du tube (4), lesdites mâchoires étant fixes entre elles,*> a bending arm (3) provided with a jaw support (7) which moves horizontally in the direction of the bending head (2), said jaw support (7) being integral with a clamping jaw ( 8) which comprises at least one jaw (9, 11) for bending in a clockwise direction of the tube (4) and at least one jaw (10) for bending in a counterclockwise direction of the tube (4), said jaws being fixed between them,
<* un galet de cintrage (12) qui est fixe sur le bras de cintrage (3) et qui comporte au moins une mâchoire (13, 15) pour le cintrage suivant une direction horaire du tube (4) et au moins une mâchoire (14) pour le cintrage suivant une direction anti-horaire du tube (4), lesdites mâchoires (13, 14 et 15) étant décalées latéralement les unes par rapport aux autres et de part et d'autre de l'axe vertical XX' de la tête de cintrage (2), *> un premier support de réglette (16) qui comporte au moins une mâchoire (18,<* a bending roller (12) which is fixed on the bending arm (3) and which comprises at least one jaw (13, 15) for bending in a clockwise direction of the tube (4) and at least one jaw ( 14) for bending in a counterclockwise direction of the tube (4), said jaws (13, 14 and 15) being offset laterally with respect to each other and on either side of the vertical axis XX 'of the bending head (2), *> a first strip support (16) which comprises at least one jaw (18,
19) pour l'accompagnement serré du tube (4) lors de son cintrage suivant une direction horaire, * et un second support de réglette (17) qui comporte au moins une mâchoire19) for tight support of the tube (4) during its bending in a clockwise direction, * and a second strip support (17) which comprises at least one jaw
(21) pour l'accompagnement serré du tube (4) lors de son cintrage suivant une direction anti-horaire.(21) for tight support of the tube (4) during its bending in a counterclockwise direction.
.. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce que le mors de serrage (8) comporte au moins deux mâchoires (9, 10, 11) qui sont décalées latéralement les unes par rapport aux autres... Machine for bending tubes according to claim 1, characterized in that the clamping jaw (8) comprises at least two jaws (9, 10, 11) which are offset laterally with respect to each other.
3. Machine à cintrer les tubes suivant la revendication 1, caractérisée en ce que le mors de serrage (8) comporte au moins deux mâchoires (9, 11) se trouvant l'une au dessus de l'autre et qui sont séparées par un logement (22).3. Machine for bending tubes according to claim 1, characterized in that the clamping jaw (8) comprises at least two jaws (9, 11) located one above the other and which are separated by a housing (22).
4. Machine à cintrer les tubes suivant la revendication 3, caractérisée en ce que le logement (22) présente une hauteur qui est supérieure à celle prévue pour une mâchoire (9, 10, 11).4. Machine for bending tubes according to claim 3, characterized in that the housing (22) has a height which is greater than that provided for a jaw (9, 10, 11).
5. Machine à cintrer les tubes suivant la revendication 1, caractérisée en ce que le mors de serrage (8) comporte trois mâchoires (9, 10 et 11) qui sont décalées latéralement les unes par rapport aux autres pour former entre les mâchoires (9, 11 ) se trouvant l'une au dessus de l'autre, un logement (22).5. Tube bending machine according to claim 1, characterized in that the clamping jaw (8) has three jaws (9, 10 and 11) which are laterally offset from one another to form between the jaws (9, 11) located one above the other, a housing (22).
6. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce que le bras de cintrage (3) comporte un galet de cintrage (12) qui pivote en même temps que ce dernier autour de l'axe vertical XX' de la tête de cintrage (2) lors des cintrages à droite ou à gauche du tube (4).6. Machine for bending tubes according to claim 1, characterized in that the bending arm (3) comprises a bending roller (12) which pivots at the same time as the latter around the vertical axis XX 'of the head bending (2) when bending to the right or left of the tube (4).
7. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce que le galet de cintrage (12) comporte au moins deux mâchoires (13, 14 et 15) qui sont décalées latéralement les unes par rapport aux autres et de part et d'autre de l'axe vertical XX' de la tête de cintrage (2).7. Machine for bending tubes according to claim 1, characterized in that the bending roller (12) comprises at least two jaws (13, 14 and 15) which are offset laterally with respect to each other and from side to side 'other of the vertical axis XX' of the bending head (2).
8. Machine à cintrer les tubes suivant la revendication 1, caractérisée en ce que le premier support de réglette (16) comporte au moins une mâchoire (18, 19) et au moins un logement (20).8. Machine for bending tubes according to claim 1, characterized in that the first strip support (16) comprises at least one jaw (18, 19) and at least one housing (20).
9. Machine à cintrer les tubes suivant la revendication 8, caractérisée en ce que le nombre de mâchoires (18, 19) prévu sur le premier support de réglette (16) dépend du nombre de mâchoires solidaires du mors de serrage (8) et du galet de cintrage (12) permettant le cintrage suivant une direction horaire du tube (4).9. Tube bending machine according to claim 8, characterized in that the number of jaws (18, 19) provided on the first strip support (16) depends on the number of jaws integral with the clamping jaw (8) and the bending roller (12) allowing the bending in a clockwise direction of the tube (4).
10. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce que le nombre de mâchoires (21) prévu sur le second support de réglette (17) dépend du nombre de mâchoires solidaires du mors de serrage (8) et du galet de cintrage (12) permettant le cintrage suivant une direction anti-horaire du tube (4).10. Machine for bending tubes according to claim 1, characterized in that the number of jaws (21) provided on the second strip support (17) depends on the number of jaws integral with the clamping jaw (8) and the roller bending (12) allowing the bending in a counterclockwise direction of the tube (4).
11. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce que chaque mâchoire (21) du second support de réglette (17) est positionnée au même niveau que celui du logement (22) correspondant du mors de serrage (8). 11. Machine for bending tubes according to claim 1, characterized in that each jaw (21) of the second strip support (17) is positioned at the same level as that of the housing (22) corresponding to the clamping jaw (8).
12. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce que le support de réglette (17) comporte au moins une mâchoire (21) et au moins un logement (25).12. Machine for bending tubes according to claim 1, characterized in that the strip support (17) comprises at least one jaw (21) and at least one housing (25).
13. Machine à cintrer les tubes suivant la revendication 12, caractérisée en ce que le support de réglette (17) comporte au dessus et en dessous de la mâchoire (21) un logement (25).13. Machine for bending tubes according to claim 12, characterized in that the strip support (17) has above and below the jaw (21) a housing (25).
14. Machine à cintrer les tubes suivant la revendication 1 , caractérisée en ce qu'elle comporte des moyens d'entraînement simultanés et inversés des premiers et seconds supports de réglette (16, 17) suivant une translation horizontale en direction du tube (4). 14. Tube bending machine according to claim 1, characterized in that it comprises simultaneous and inverted drive means of the first and second strip supports (16, 17) in a horizontal translation in the direction of the tube (4) .
EP02796898A 2001-12-20 2002-12-05 Tube bending machine and its right and/or left bending device Expired - Lifetime EP1458505B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0116593 2001-12-20
FR0116593A FR2833868B1 (en) 2001-12-20 2001-12-20 TUBE BENDING MACHINE AND ITS BENDING DEVICE ON THE LEFT AND / OR RIGHT
PCT/FR2002/004193 WO2003053606A1 (en) 2001-12-20 2002-12-05 Tube bending machine and its right and/or left bending device

Publications (2)

Publication Number Publication Date
EP1458505A1 true EP1458505A1 (en) 2004-09-22
EP1458505B1 EP1458505B1 (en) 2007-02-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02796898A Expired - Lifetime EP1458505B1 (en) 2001-12-20 2002-12-05 Tube bending machine and its right and/or left bending device

Country Status (7)

Country Link
US (1) US7213430B2 (en)
EP (1) EP1458505B1 (en)
AT (1) ATE354446T1 (en)
CA (1) CA2467366C (en)
DE (1) DE60218339T2 (en)
FR (1) FR2833868B1 (en)
WO (1) WO2003053606A1 (en)

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CN107282720A (en) * 2017-07-31 2017-10-24 浙江和良智能装备有限公司 A kind of common curved CNC tube bending machine in left and right
CN107282720B (en) * 2017-07-31 2023-08-25 浙江和良智能装备有限公司 Left-right co-bending type numerical control pipe bending machine
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Also Published As

Publication number Publication date
DE60218339T2 (en) 2007-11-15
FR2833868A1 (en) 2003-06-27
CA2467366A1 (en) 2003-07-03
US7213430B2 (en) 2007-05-08
WO2003053606A1 (en) 2003-07-03
ATE354446T1 (en) 2007-03-15
US20050172690A1 (en) 2005-08-11
DE60218339D1 (en) 2007-04-05
EP1458505B1 (en) 2007-02-21
FR2833868B1 (en) 2004-03-05
CA2467366C (en) 2009-09-08

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