EP0027080A1 - Machine for producing tube branchings and calibrations - Google Patents

Machine for producing tube branchings and calibrations Download PDF

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Publication number
EP0027080A1
EP0027080A1 EP19800401390 EP80401390A EP0027080A1 EP 0027080 A1 EP0027080 A1 EP 0027080A1 EP 19800401390 EP19800401390 EP 19800401390 EP 80401390 A EP80401390 A EP 80401390A EP 0027080 A1 EP0027080 A1 EP 0027080A1
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EP
European Patent Office
Prior art keywords
turret
tube
carriage
axis
machine according
Prior art date
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Granted
Application number
EP19800401390
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German (de)
French (fr)
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EP0027080B1 (en
Inventor
Georges J-J. Martin
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REGIE MUNICIPALE du GAZ
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REGIE MUNICIPALE du GAZ
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall

Definitions

  • the subject of the present invention is a machine for making tappings and. calibrations on the tubes.
  • the main object of the machine according to the invention is to ensure the production of copper risers while respecting the precision standards corresponding to specification B 524 of the Technical Association of Gas of France.
  • said machine according to the invention makes it possible to ensure two functions which are, obtaining orifices with fallen edges by extrusion on copper tube and calibration of the bypass tube to be brazed on this orifice over the length necessary for the solder.
  • the machining tool is held tight in the jaws of the rotary mandrel and in that on the carriage is pivotally mounted a turret capable of occupying two positions offset by 90 ° and comprising a means of tightening the tube. allowing to selectively present a tube coaxially to the spindle for a calibration operation and a tube with its axis perpendicular to the axis of the spindle for drilling and extrusion operations with calibration of a collar outside the tube .
  • FIGS 1, 2, 3, 4 and 5 there is shown an embodiment of the machine according to the invention consisting of a bench 1 resting on the ground and supporting at one of its ends a fixed headstock 2 on which is mounted a spindle 3 which is provided at one of its ends with a rotary mandrel 4, said spindle being connected by a belt transmission 5 to a motor 6 for the rotational driving of the spindle 3 and the mandrel 4 .
  • the mandrel 4 has jaws 7 between which a calibration or extrusion tool may be engaged which will be described in more detail below.
  • the jaws 7 of the mandrel 4 are actuated by means of a fluid such as compressed air and the supply is carried out by means of conduits 21, 21 a (FIG. 4) which are connected to a source of compressed air 12 via a control box 23.
  • a support plate 8 on which are mounted at one of their ends two bars 9, 9a which are fixed at their other end on the headstock 2, said bars 9, 9a constituting slides on which slides along the longitudinal axis of the bench 1, a carriage 1Q which is provided at its upper part with a pivoting turret 11 capable of occupying two positions offset by 90 ° as shown in FIGS. 2 and 5.
  • the turret 11 (FIG. 6) comprises a means for clamping the tubes to be machined which consists of a fixed jaw 12 secured to the body of the turret 11 and of a movable jaw 13 between which a tube 14 is held tight.
  • movable jaw 13 is provided with a stop 15 having a housing 15 a in which is engaged the end of a threaded rod 16 which meshes with a nut secured to the body of the turret 11.
  • the threaded rod 16 is provided with an operating wheel 17 enabling the movable jaw 13 to be actuated by means of the rod 16.
  • the fixed jaw 12 has a bore 18 whose axis is perpendicular to the longitudinal axis of the jaws and into which a centering nozzle 19 is screwed, itself having a bore which opens outwards through a bore 20 of the body 11 This arrangement allows the introduction of the extrusion tool into the bores 20 and 18 for the machining of the tube disposed between the jaws 12 and 13.
  • This gear train (Fig.8) comprises a pinion 25 which is wired on a shaft 26 rotatably mounted between two flanges 27, 28 of the casing, said pinion 25 being driven by the gear 24 and the shaft 26 carrying a pinion 29 which meshes with a pinion 30 cabled on a shaft 31 rotatably mounted between the flanges 27, 28, said.
  • shaft 31 being secured to a pinion 32 which meshes with a pinion 33 fixed to one end of a mother screw 34 rotatably mounted between two bearings 5, 35a respectively secured to the housing of the headstock 2 and the plate 8.
  • the mother screw 34 which is rotated from the spindle of the machine via the gear train, meshes with a nut composed of two half-nuts 36, 36a (Fig. 7) which are integral with the carriage by rods 37, 37 a on which the half-nuts can slide under faction of the pins 38, 38 a which are integral with the half-nuts and which can slide in. slots, eccentric 39,39 has a pivoting plate 40 which can be. actuated from the outside by a lever 41 (Fig, 4).
  • one of the bars 9 comprises a rack 42 which meshes with a pinion (not shown in the drawing) and which is fixed to the end of a shaft 43 which carries at its other end an operating lever 44 capable of move the carriage 10 manually.
  • two bosses 48, 48 a are provided which cooperate with a boss 49 provided on the shaft 45 in order to delimit the two positions.
  • FIG 9 there is shown an embodiment of a tool for calibrating a tube, said tool consisting of a cylindrical body 50 whose tail 50 a is engaged between the jaws 7 of the mandrel 4, said body comprising two bores 50 b and 50 c in which is engaged a cylindrical centering pin 51 which is held in the body by a screw 52.
  • annular space 53 constituting the calibration space in which is engaged the tube intended to constitute the male part of the tapping.
  • FIG 10 there is shown a tool for the extrusion of the tube after drilling a hole using a cutter.
  • This tool consists of a cylindrical body 54, the tail 54 a of which is held tight between the jaws 7 of the mandrel 4 and it has a low-cut part 54 b on which is mounted a sleeve 55.
  • the body 54 ends with a rod of smaller diameter at the end of which is provided a housing 56 in which is pivotally mounted about an axis 57 perpendicular to the axis of the rod an extruder member 58 having the shape of a semi-conference.
  • a blind hole 59 In the central part of the body is drilled a blind hole 59 in which is slidably mounted a pusher 60 bearing against the periphery of the extruder member 58 under the action of a spring 61 disposed in the bottom of the hole 59.
  • the sleeve 55 has a slot 62 in which the extruder member 58 can be engaged in order to pivot the latter and to retract it between the faces of the housing 56.
  • edge 63 of the extruder member has, in cross section, a semi-circular shape.
  • the tool 50 shown in FIG. 9 is mounted between the jaws 7 of the mandrel 4 and the turret 11 is in the position shown in broken lines in FIGS. 2 and 5.
  • the tube is engaged between the jaws 12, 13 of the turret and the mandrel 4 is rotated as well as the tool 50, 51.
  • the lever 44 which then acts by the shaft 43 and the pinion meshing with the rack 42, is then manually actuated on the carriage 10 and the turret 11 and communicates to the tube a movement of advance and retreat during which said tube is engaged. by one of its ends in the space 53 of the calibration tool.
  • the recoil of the carriage can also be carried out by means of the automatic device via the mother screw 34 and the half-nuts 36, 36 a when the lever 41 is acted on.
  • An adjustable stop on one of the two turret guides 11 limit the advance and therefore adjust the length of the calibrated part of the tube.
  • the turret 11 is placed in the position shown in solid lines in Figures 2 and 5 and the tube 14 is fixed between the jaws 12, 13 so that the tapping is located opposite the bores 19, 20 (Fig. 6).
  • a cutter being mounted on the mandrel 4 which is rotated, we proceed in advance of the carriage 10 and the turret 11 so to drill a hole in the tube.
  • the cutter is replaced by the extruder tool 54, 58 which is mounted between the jaws 7 of the mandrel 5.
  • the extruder member 58 is retracted into its housing 56 by means of the sleeve 55.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

1. Hole flanging and gauging machine for use on copper pipes for example, wherein a bed (1) supports a fixed headstock (2) which is provided with a spindle (3) carrying a rotating chuck (4) situated opposite a carriage (10) mounted for sliding longitudinally on the bed (1), characterized in that the machine tool is gripped between the jaws (7) of the rotating chuck (4), and in that on the carriage (10) is pivotally mounted a turret (11) adapted to occupy two positions offset by 90 degrees and comprising means (12, 13) for gripping the pipe (14) permitting to selectively present a pipe (14) coaxially to the spindle (3) for a gauging operation and a pipe (14) with its axis perpendicular to the axis of the spindle (3) for the operation which consists in gauged drilling and extruding a neck on the outside of a pipe (14).

Description

La présente invention a pour objet une machine pour la réalisation de piquages et de. calibrages sur les tubes.The subject of the present invention is a machine for making tappings and. calibrations on the tubes.

Il est connu d'utiliser des machines qui permettent de réaliser sur des tubes notamment en cuivre, une opération dite de "piquage" qui consiste à relever, vers l'extérieur, le bord d'un trou pratiqué dans la paroi du tube afin de constituer une collerette dans laquelle est engagé un tube calibré pour son assemblage par brasure et l'obtention d'un raccordement.It is known to use machines which make it possible to carry out on tubes, in particular copper, a so-called "stitching" operation which consists in raising, towards the outside, the edge of a hole made in the wall of the tube in order to constitute a flange in which is engaged a calibrated tube for its assembly by brazing and obtaining a connection.

Toutefois, les machines actuellement connues n'assurent que la formation du piquage sur les tubes et ne permettent pas de respecter les normes de précision qui sont actuellement imposées notamment en ce qui concerne les canalisations de gaz à l'intérieur des bâtiments d'habitation.However, the currently known machines only ensure the formation of the nozzle on the tubes and do not make it possible to comply with the precision standards which are currently imposed in particular with regard to the gas pipelines inside residential buildings.

La machine suivant l'invention a pour principal objet d'assurer la réalisation de colonnes montantes en cuivre en respectant les normes de précision correspondant à la spécification B 524 de l'Association Technique du Gaz de France.The main object of the machine according to the invention is to ensure the production of copper risers while respecting the precision standards corresponding to specification B 524 of the Technical Association of Gas of France.

Par ailleurs ladite machine suivant l'invention permet d'assurer deux fonctions qui sont,l'obtention d'orifices à bords tombés par extrusion sur du tube cuivre et le calibrage du tube de dérivation à braser sur cet orifice sur la longueur nécessaire à la brasure.Furthermore, said machine according to the invention makes it possible to ensure two functions which are, obtaining orifices with fallen edges by extrusion on copper tube and calibration of the bypass tube to be brazed on this orifice over the length necessary for the solder.

Conformément à la présente invention l'outil d'usinage est maintenu serré dans les mors du mandrin rotatif et en ce que sur le chariot est montée pivotante une tourelle susceptibe d'occuper deux positions décalées de 90° et comportant un moyen de serrage du tube permettant de présenter sélectivement un tube coaxialement à la broche pour une opération de calibrage et un tube avec son axe perpendiculaire à l'axe de la broche pour les opérations de perçage et d'extrusion avec calibrage d'un collet à l'extérieur du tube.In accordance with the present invention, the machining tool is held tight in the jaws of the rotary mandrel and in that on the carriage is pivotally mounted a turret capable of occupying two positions offset by 90 ° and comprising a means of tightening the tube. allowing to selectively present a tube coaxially to the spindle for a calibration operation and a tube with its axis perpendicular to the axis of the spindle for drilling and extrusion operations with calibration of a collar outside the tube .

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'un exemple de réalisation et en se référant aux dessins annexés, dans lesquels :

  • . la figure 1 est une vue en élévation de face de la machine suivant l'invention.
  • . la figure 2 est une vue latérale de gauche de la machine représentés à la figure 1.
  • la figure 3 est une vue. latérale de droite de la machine représentée, à la figure 1.
  • la figure 4 est une vue. en éléyqt§on arrière de la machine représentée à la figure 1.
  • la figure 5 est une vue de dessus de la machine suivant l'invention.
  • la figure 6 est une vue de détail en coupe montrant les moyens de serrage des tubes.
  • . la figure 7 est une vue en coupe du moyen d'en- trainement du chariot porte-tube.
  • . la figure 8 est une vue en coupe de la transmission à engrenages.
  • . la figure 9 est une vue en coupe d'un outil de calibrage de tube.
  • . la figure 10 est une vue en coupe d'un outil d'extrusion pour la réalisation de piquages.
Other characteristics and advantages of the invention will be better understood on reading the description which follows of an exemplary embodiment and with reference to the appended drawings, in which:
  • . Figure 1 is a front elevational view of the machine according to the invention.
  • . Figure 2 is a left side view of the machine shown in Figure 1.
  • Figure 3 is a view. right side of the machine shown in Figure 1.
  • Figure 4 is a view. rear side of the machine shown in Figure 1.
  • Figure 5 is a top view of the machine according to the invention.
  • Figure 6 is a detailed sectional view showing the clamping means of the tubes.
  • . Figure 7 is a sectional view of the drive means of the tube holder carriage.
  • . Figure 8 is a sectional view of the gear transmission.
  • . Figure 9 is a sectional view of a tube calibration tool.
  • . Figure 10 is a sectional view of an extrusion tool for making nozzles.

Aux figures 1, 2, 3, 4 et 5 on a représenté un mode de réalisation de la machine suivant l'invention constituée d'un banc 1 reposant sur le sol et supportant à l'une de ses extrémités une poupée fixe 2 sur laquelle est montée une broche 3 qui est munie à l'une de ses extrémités d'un mandrin rotatif 4, ladite broche étant reliée par une transmission à courroies 5 à un moteur 6 pour l'entrainement en rotation de la broche 3 et du mandrin 4.In Figures 1, 2, 3, 4 and 5 there is shown an embodiment of the machine according to the invention consisting of a bench 1 resting on the ground and supporting at one of its ends a fixed headstock 2 on which is mounted a spindle 3 which is provided at one of its ends with a rotary mandrel 4, said spindle being connected by a belt transmission 5 to a motor 6 for the rotational driving of the spindle 3 and the mandrel 4 .

Le mandrin 4 présente des mors 7 entre lesquels est susceptible d'être engagé un outil de calibrage ou d'extrusion qui seront décrits plus en détail ci-après. Les mors 7 du mandrin 4 sont actionnés au moyen d'un fluide tel que l'air comprimé et l'alimentation est réalisée au moyen de conduits 21, 21 a (Fig.4) qui sont reliés à une source d'air comprimé 12 par l'intermédiaire d'un coffret de commande 23.The mandrel 4 has jaws 7 between which a calibration or extrusion tool may be engaged which will be described in more detail below. The jaws 7 of the mandrel 4 are actuated by means of a fluid such as compressed air and the supply is carried out by means of conduits 21, 21 a (FIG. 4) which are connected to a source of compressed air 12 via a control box 23.

A l'autre extrémité du banc 1 est fixée une plaque de support 8 sur laquelle sont montées à l'une de leurs extrémités deux barres 9, 9a qui sont fixées à leur autre extrémité sur la poupée fixe 2, lesdites barres 9, 9a constituant des glissières sur lesquelles coulisse suivant l'axe longitudinal du banc 1, un chariot 1Q qui est muni à sa partie supérieure d'une tourelle pivotante 11 susceptible d'occuper deux positions décalées de 90° ainsi qu'il est représent aux figures 2 et 5.At the other end of the bench 1 is fixed a support plate 8 on which are mounted at one of their ends two bars 9, 9a which are fixed at their other end on the headstock 2, said bars 9, 9a constituting slides on which slides along the longitudinal axis of the bench 1, a carriage 1Q which is provided at its upper part with a pivoting turret 11 capable of occupying two positions offset by 90 ° as shown in FIGS. 2 and 5.

La tourelle 11 (Fig.6) comporte un moyen de serrage des tubes à usiner qui est constitué d'un mors fixe 12 solidaire du corps de la tourelle 11 et d'un mors mobile 13 entre lesquels est maintenu serré un tube 14. Le mors mobile 13 est muni d'une butée 15 présentant un logement 15 a dans lequel est engagée l'extrémité d'une tige filetée 16 qui engrène avec un écrou solidaire du corps de la tourelle 11.The turret 11 (FIG. 6) comprises a means for clamping the tubes to be machined which consists of a fixed jaw 12 secured to the body of the turret 11 and of a movable jaw 13 between which a tube 14 is held tight. movable jaw 13 is provided with a stop 15 having a housing 15 a in which is engaged the end of a threaded rod 16 which meshes with a nut secured to the body of the turret 11.

A son autre extrémité la tige filetée 16 est munie d'un volant de manoeuvre 17 permettant d'actionner le mors mobile 13 par l'intermédiaire de la tige 16.At its other end, the threaded rod 16 is provided with an operating wheel 17 enabling the movable jaw 13 to be actuated by means of the rod 16.

Le mors fixe 12 présente un alèsage 18 dont l'axe est perpendiculaire à l'axe longitudinal des mors et dans lequel est vissé un embout de centrage 19 présentant lui-même un alèsage qui débouche vers l'extérieur par un alésage 20 du corps 11. Cette disposition permet l'introduction da l'outil d'extrusion dans les alésages 20 et 18 pour l'usinage du tube disposé entre les mors 12 et 13.The fixed jaw 12 has a bore 18 whose axis is perpendicular to the longitudinal axis of the jaws and into which a centering nozzle 19 is screwed, itself having a bore which opens outwards through a bore 20 of the body 11 This arrangement allows the introduction of the extrusion tool into the bores 20 and 18 for the machining of the tube disposed between the jaws 12 and 13.

L'entrainement du chariot 10 qui est guidé par les barres 9, 9 a est réalisé pour le mouvement derecul au moyen d'un train d'engrenages qui est actionné à partir d'un engrenage 24 qui est calé sur la broche rotative 3. Ce train d'engrenages (Fig.8) comprend un pignon 25 qui est câlé sur un arbre 26 monté rotatif entre deux flasques 27, 28 du carter, ledit pignon 25 étant entraîné par l'engrenage 24 et l'arbre 26 portant un pignon 29 qui engrène avec un pignon 30 câlé sur un arbre 31 monté rotatif entre les flasques 27, 28, ledit. arbre 31 étant solidaire d'un pignon 32 qui engrène avec un pignon 33 fixé à l'une des extrémités d'une vis mère 34 monté rotative entre deux paliers 5, 35 a respectivement solidaires du carter de la poupée fixe 2 et de la plaque 8.The drive of the carriage 10 which is guided by the rods 9, 9 a is done for der e cul movement by means of a gear train which is driven from a gear 24 which is keyed on the rotatable spindle 3. This gear train (Fig.8) comprises a pinion 25 which is wired on a shaft 26 rotatably mounted between two flanges 27, 28 of the casing, said pinion 25 being driven by the gear 24 and the shaft 26 carrying a pinion 29 which meshes with a pinion 30 cabled on a shaft 31 rotatably mounted between the flanges 27, 28, said. shaft 31 being secured to a pinion 32 which meshes with a pinion 33 fixed to one end of a mother screw 34 rotatably mounted between two bearings 5, 35a respectively secured to the housing of the headstock 2 and the plate 8.

La vis mère 34 qui est entrainée en rotation à partir de la broche de la machine par l'intermédiaire du train d'engrenages, engrène avec un écrou composé de deux demi-écrous 36, 36a (Fig. 7) qui sont solidaires du chariot par des tiges 37, 37 a sur lesquelles les demi-écrous peuvent coulisser sous faction des tétons 38, 38 a qui sont solidaires des demi-écrous et qui peuyent coulisser dans. des fentes, excentrées 39,39 a d'une plaque pivotante 40 qui peut être. actionnée de l'extérieur par une manette 41 (Fig, 4).The mother screw 34 which is rotated from the spindle of the machine via the gear train, meshes with a nut composed of two half-nuts 36, 36a (Fig. 7) which are integral with the carriage by rods 37, 37 a on which the half-nuts can slide under faction of the pins 38, 38 a which are integral with the half-nuts and which can slide in. slots, eccentric 39,39 has a pivoting plate 40 which can be. actuated from the outside by a lever 41 (Fig, 4).

Le mouvement d'avance et de reoul du chariot est réalisé manuellement.The movement of the carriage forward and backward is carried out manually.

Dans ce but d'une des barres 9 comporte une crèmaillère 42 qui engréne avec un pignon (non représenté au dessin) et qui est fixé à l'extrémité d'un arbre 43 qui porte à son autre extrêmité un levier de manoeuvre 44 susceptible de déplacer le chariot 10 manuellement.For this purpose, one of the bars 9 comprises a rack 42 which meshes with a pinion (not shown in the drawing) and which is fixed to the end of a shaft 43 which carries at its other end an operating lever 44 capable of move the carriage 10 manually.

Sur le chariot 10 est monté un arbre 45 solidaire de la tourelle 11 et qui est relié par un système vis écrou à un cliquet 46 commandé par une poignée 47 et permettant d'amener la tourelle 11 de la position représentée en trait plein pour l'ex- trudage aux figures 2 et 5, à la position en trait interrompu pour le calibrage.On the carriage 10 is mounted a shaft 45 integral with the turret 11 and which is connected by a screw nut system to a pawl 46 controlled by a handle 47 and making it possible to bring the turret 11 from the position shown in solid lines for the extrusion in Figures 2 and 5, in the dashed line position for calibration.

Pour délimiter les positions angulaires de la tourelle, il est prévu, deux bossages 48, 48 a qui coopèrent avec un bossage 49 prévu sur l'arbre 45 afin de délimiter les deux positions.To delimit the angular positions of the turret, two bosses 48, 48 a are provided which cooperate with a boss 49 provided on the shaft 45 in order to delimit the two positions.

A la figure 9, on a représenté un mode de réalisation d'un outil de calibrage d'un tube, ledit outil étant constitué d'un corps cylindrique 50 dont la queue 50 a est engagée entre les mors 7 du mandrin 4, ledit corps comportant deux alèsages 50 b et 50 c dans lesquels est engagé un pion de centrage 51 cylindrique qui est maintenu dans le corps par une vis 52.In Figure 9, there is shown an embodiment of a tool for calibrating a tube, said tool consisting of a cylindrical body 50 whose tail 50 a is engaged between the jaws 7 of the mandrel 4, said body comprising two bores 50 b and 50 c in which is engaged a cylindrical centering pin 51 which is held in the body by a screw 52.

Entre l'alèsage 50 c du corps et le pion de centrage 51 est ménagé un espace annulaire 53 constituant l'espace de calibrage dans lequel est engagé la tube destiné à constituer la partie mâle du piquage.Between the bore 50 c of the body and the centering pin 51 is formed an annular space 53 constituting the calibration space in which is engaged the tube intended to constitute the male part of the tapping.

A la figure 10 on a représenté un outil pour l'ex- trudage du tube après perçage d'un trou au moyen d'une fraise. Cet outil est constitué d'un corps cylindrique 54 dont la queue 54 a est maintenue serrée entre les mors 7 du mandrin 4 et il présente une partie décolletée 54 b sur laquelle est monté coulissent un manchon 55. A la suite de la partie décolletée 54 b le corps 54 se'termine par une tige de plus faible diamètre à l'extrémité de laquelle est ménagé un logement 56 dans lequel est monté pivotant autour d'un axe 57 perpendiculaire à- l'axe de la tige un organe extrudeur 58 ayant la forme d'une demi- criconférence.In Figure 10 there is shown a tool for the extrusion of the tube after drilling a hole using a cutter. This tool consists of a cylindrical body 54, the tail 54 a of which is held tight between the jaws 7 of the mandrel 4 and it has a low-cut part 54 b on which is mounted a sleeve 55. Following the low-cut part 54 b the body 54 ends with a rod of smaller diameter at the end of which is provided a housing 56 in which is pivotally mounted about an axis 57 perpendicular to the axis of the rod an extruder member 58 having the shape of a semi-conference.

Dans la partie centrale du corps est percé un trou borgne 59 dans lequel est monté coulissant un poussoir 60 en appui contre la périphérie de l'organe extrudeur 58 sous l'action d'un ressort 61 disposé dans le fond du trou 59.In the central part of the body is drilled a blind hole 59 in which is slidably mounted a pusher 60 bearing against the periphery of the extruder member 58 under the action of a spring 61 disposed in the bottom of the hole 59.

Le manchon 55 comporte une fente 62 dans laquelle est susceptible d'être engagé l'organe extrudeur 58 afin de faire pivoter celui-ci et de l'escamoter entre les faces du logement 56.The sleeve 55 has a slot 62 in which the extruder member 58 can be engaged in order to pivot the latter and to retract it between the faces of the housing 56.

Par ailleurs le bord 63 de l'organe extrudeur présente en section transversale une forme semi-circulaire.Furthermore, the edge 63 of the extruder member has, in cross section, a semi-circular shape.

Pour procéder au calibrage de la partie mâle d'un piquage,l'outil 50 représenté à la figure 9 est monté entre les mors 7 du mandrin 4 et la tourelle 11 se trouve dans la position représentée en trait interrompu aux figures 2 et 5. Le tube est engagé entre les mors 12, 13 de la tourelle et le mandrin 4 est entrainé en rotation ainsi que l'outil 50, 51.To calibrate the male part of a nozzle, the tool 50 shown in FIG. 9 is mounted between the jaws 7 of the mandrel 4 and the turret 11 is in the position shown in broken lines in FIGS. 2 and 5. The tube is engaged between the jaws 12, 13 of the turret and the mandrel 4 is rotated as well as the tool 50, 51.

On actionne alors manuellement le levier 44 qui agit par l'arbre 43 et le pignon engrenant avec la crèmaillère 42, sur le chariot 10 et la tourelle 11 et communique au tube un mouvement d'avance et de recul au cours duquel ledit tube est engagé par l'une de ses extrémités dans l'espace 53 de l'outil de calibrage. Le recul du chariot peut également s'effectuer au moyen du dispositif automatique par l'intermédiaire de la vis mère 34 et des demi-écrous 36, 36 a lorsqu'on agit sur le levier 41. Une butée règlable sur l'un des deux guides de la tourelle 11 permet de limiter l'avance et par conséquent de régler la longueur de la partie calibrée du tube.The lever 44 which then acts by the shaft 43 and the pinion meshing with the rack 42, is then manually actuated on the carriage 10 and the turret 11 and communicates to the tube a movement of advance and retreat during which said tube is engaged. by one of its ends in the space 53 of the calibration tool. The recoil of the carriage can also be carried out by means of the automatic device via the mother screw 34 and the half-nuts 36, 36 a when the lever 41 is acted on. An adjustable stop on one of the two turret guides 11 limit the advance and therefore adjust the length of the calibrated part of the tube.

Pour procéder à l'exécution de la partie femelle ou piquage du tube, on dispose la tourelle 11 dans la position représentée en trait plein aux figures 2 et 5 et on fixe le tube 14 entre les mors 12, 13 de telle sorte que le piquage se trouve en regard des alèsages 19, 20 (Fig. 6). Une fraise à découper étant montée sur le mandrin 4 qui est entrainé en rotation, on procède à l'avance du chariot 10 et de la tourelle 11 de manière à percer un trou dans le tube.To carry out the female part or tapping of the tube, the turret 11 is placed in the position shown in solid lines in Figures 2 and 5 and the tube 14 is fixed between the jaws 12, 13 so that the tapping is located opposite the bores 19, 20 (Fig. 6). A cutter being mounted on the mandrel 4 which is rotated, we proceed in advance of the carriage 10 and the turret 11 so to drill a hole in the tube.

Ensuite on procède au remplacement de la fraise par l'outil extrudeur 54, 58 qui est monté entre les mors 7 du mandrin 5. L'organe extrudeur 58 est escamoté dans son logement 56 au moyen du manchon 55.Next, the cutter is replaced by the extruder tool 54, 58 which is mounted between the jaws 7 of the mandrel 5. The extruder member 58 is retracted into its housing 56 by means of the sleeve 55.

L'outil étant arrêté ainsi que le mandrin 4, on agit au moyen du levier 44 sur le chariot 10 et par un mouvement d'avance du tube 14 on fait pénéter la tige 54 et l'organe extrudeur 58 dans le trou percé dans le tube jusqu'à ce que l'organe extrudeur 58 soit complètement à l'intérieur du tube. Dans cette position et sous l'action du poussoir 60 l'organe 58 reprend alors automatiquement sa position de travail représentée à la figure 10.The tool being stopped as well as the mandrel 4, one acts by means of the lever 44 on the carriage 10 and by a movement of advance of the tube 14 one causes the rod 54 and the extruder member 58 to penetrate into the hole drilled in the tube until the extruder member 58 is completely inside the tube. In this position and under the action of the pusher 60, the member 58 then automatically resumes its working position shown in FIG. 10.

On procède à la mise en rotation du mandrin 4 et de l'outil qu'il porte et on enclanche le dispositif de recul automatique du chariot au moyen du levier 41 qui agit sur les demi-écrous 36, 36 a venant enserrer la vis mère 34 qui entraine le chariot 10 et la tourelle 11.The mandrel 4 and the tool it carries are rotated and the automatic recoil device of the carriage is switched on by means of the lever 41 which acts on the half-nuts 36, 36 a enclosing the mother screw 34 which drives the carriage 10 and the turret 11.

Au cours de ce recul de la tourelle 11, l'organe extrudeur 58 refoule à l'extérieur un collet 14 a et calibre l'évidement dans le tube 14 (Fig. 10).During this retreat of the turret 11, the extruder member 58 pushes out a collar 14 a and calibrates the recess in the tube 14 (FIG. 10).

Dette dernière opération doit être répétée deux fois pour obtenir un résultat satisfaisant.This last operation must be repeated twice to obtain a satisfactory result.

Bien entendu diverses modificiations peuvent être apportées par l'homme de l'art aux dispositifs ou procédés qui viennent d'être décrits uniquement à titre d'exemple non limitatif sans sortir du cadre de l'invention.Of course various modifications can be made by those skilled in the art to the devices or methods which have just been described solely by way of non-limiting example without departing from the scope of the invention.

Claims (7)

1. Machine pour la réalisation de piquages et de calibrages sur des tubes notamment en cuivre, dans laquelle un banc supporte une poupée fixe qui est munie d'une broche portant un mandrin rotatif disposé en regard d'un chariot monté coulissant longitudinalement sur le banc, caractérisé en ce que l'outil d'usinage est maintenu serré dans les mors du mandrin rotatif et en ce que sur le chariot est montée pivotante une tourelle susceptible d'occuper deux positions décalées de 90° et comportant un moyen de serrage du tube permettant de présenter sélectivement un tube coaxialement à la broche pour une opération de calibrage et un tube avec son axe perpendiculaire à l'axe de la breche pour les opérations de perçage et d'extrusion avec calibrage d'un collet à l'extérieur du tube.1. Machine for making tappings and calibrations on tubes, in particular copper, in which a bench supports a fixed headstock which is provided with a spindle carrying a rotary mandrel placed opposite a carriage mounted to slide longitudinally on the bench , characterized in that the machining tool is held tight in the jaws of the rotary mandrel and in that on the carriage is pivotally mounted a turret capable of occupying two positions offset by 90 ° and comprising a means of tightening the tube allowing to selectively present a tube coaxially to the spindle for a calibration operation and a tube with its axis perpendicular to the axis of the breche for drilling and extrusion operations with calibration of a collar outside the tube . 2. Machine suivant la revendication 1 , caractérisée en ce que le chariot portant la tourelle est entraîné par une vis mère débrayable qui est reliée à un organe moteur par un moyen de transmission réducteur de vitesse; ledit organe moteur étant contrôlé par un organe de contact électrique de sécurité.2. Machine according to claim 1, characterized in that the carriage carrying the turret is driven by a disengageable lead screw which is connected to a motor member by a speed reducing transmission means; said drive member being controlled by an electrical safety contact member. 3. Machine suivant la revendication 1 , caractérisée en ce que le chariot portant la tourelle est entrainé manuellement par une crémaillère engrenant avec un pignon solidaire d'un arbre portant un levier de manoeuvre.3. Machine according to claim 1, characterized in that the carriage carrying the turret is manually driven by a rack meshing with a pinion secured to a shaft carrying an operating lever. 4. Machine suivant la revendication 1, caractérisée en ce que la tourelle est montée pivotante sur le chariot au moyen d'un axe qui est relié par une vis à un écrou entrainé par une poignée à cliquet.4. Machine according to claim 1, characterized in that the turret is pivotally mounted on the carriage by means of an axis which is connected by a screw to a nut driven by a ratchet handle. 5. Machine suivant la revendication 1, caractérisée en ce que le moyen de serrage du tube est constitué par un mors fixe solidaire du corps de la tourelle et par un mors mobile qui est muni d'une butée contre laquelle est en apppui une tige filetée engagée dans un écrou solidaire du corps de la tourelle et portant à son extrémité libre un volant de manoeuvre ledit mors fixe présentant un alèsage dont l'axe est perpendiculaire à l'axe longitudinal des mors et comporte un embout de centrage débouchant à l'extérieur de la tourelle pour l'engagement de l'outil extrudeur.5. Machine according to claim 1, characterized in that the tube clamping means is constituted by a fixed jaw integral with the body of the turret and by a movable jaw which is provided with a stop against which is supported a threaded rod engaged in a nut integral with the body of the turret and carrying at its free end a handwheel said fixed jaw having a bore whose axis is perpendicular to the longitudinal axis of the jaws and has a centering end opening to the outside turret for engaging the extruder tool. 6. Machine suiyant la reyendication 1, caractérisée en ce que l'outil pour l'opération de calibrage, est constitue d'un corps cylindrique présentant un alèsage dans lequel est disposé un pion de centrage cylindrique, de manière à ménager un espace annulaire entre le corps et le pion de centrage constituant l'espace de calibrage dans lequel est engagé le tube destiné à constituer la partie mâle du piquage.6. Machine following reyendication 1, characterized in that the tool for the calibration operation, consists of a cylindrical body having a bore in which is disposed a cylindrical centering pin, so as to provide an annular space between the body and the centering pin constituting the calibration space in which is engaged the tube intended to constitute the male part of the connection. 7. Machine suivant la revendication 1, caractérisée en ce que l'outil pour l'opération d'extrusion est constitué d'un corps cylindrique présentant à l'une de ses extrémités une tige de plus faible diamètre dans laquelle est ménagé un logement recevant un organe extrudeur ayant la forme d'une demi- circonférence, ledit organe extrudeur étant monté pivotant sur un axe perpendiculaire à l'axe de la tige, et étant soumis sélectivement à l'action d'un manchon coulissant sur le corps cylindrique et d'un poussoir monté coulissant dans la partie centrale du corps, ledit poussoir étant soumis à l'action d'un ressort qui tend à maintenir le poussoir contre la partie centrale du galet 8. Machine selon la revendication 7, caractérisée en ce que l'organe extrudeur présente en section transversale un bord semi circulaire.7. Machine according to claim 1, characterized in that the tool for the extrusion operation consists of a cylindrical body having at one of its ends a rod of smaller diameter in which is provided a housing receiving an extruder member in the form of a half-circumference, said extruder member being pivotally mounted on an axis perpendicular to the axis of the rod, and being selectively subjected to the action of a sliding sleeve on the cylindrical body and d 'A pusher mounted sliding in the central part of the body, said pusher being subjected to the action of a spring which tends to hold the pusher against the central part of the roller 8. Machine according to claim 7, characterized in that extruder member has a semi-circular edge in cross section.
EP19800401390 1979-10-04 1980-10-02 Machine for producing tube branchings and calibrations Expired EP0027080B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7924759 1979-10-04
FR7924759A FR2466288A1 (en) 1979-10-04 1979-10-04 MACHINE FOR MAKING STITCHING AND CALIBRATION ON TUBES

Publications (2)

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EP0027080A1 true EP0027080A1 (en) 1981-04-15
EP0027080B1 EP0027080B1 (en) 1983-03-16

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EP19800401390 Expired EP0027080B1 (en) 1979-10-04 1980-10-02 Machine for producing tube branchings and calibrations

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EP (1) EP0027080B1 (en)
DE (1) DE3062360D1 (en)
FR (1) FR2466288A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117387550A (en) * 2023-10-24 2024-01-12 广州市韦德电气机械有限公司 Servo motor fault detection device and using method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR870008A (en) * 1938-10-25 1942-02-27 Mannesmann Roehren Werke Ag Method for calibrating the ends of tubes and calibrating device intended for its implementation
GB591662A (en) * 1945-05-16 1947-08-25 William Henry Paton Improvements in or relating to fine drilling or like machine tools
US3081812A (en) * 1960-05-09 1963-03-19 Reed Mfg Co Branch line connection tool
FR1534930A (en) * 1967-06-23 1968-08-02 Bonnamy & Fils E Tools for carrying out a stitching operation on tubes
NL7415559A (en) * 1974-11-28 1976-06-01 Johannes Adrianus Van Geffen METHOD AND PIECE OF TOOL FOR FROSTING HEAT AND PRESSURE TO MAKE A HOLE IN A METAL PLATE OR THE WALL OF A METAL TUBE.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR870008A (en) * 1938-10-25 1942-02-27 Mannesmann Roehren Werke Ag Method for calibrating the ends of tubes and calibrating device intended for its implementation
GB591662A (en) * 1945-05-16 1947-08-25 William Henry Paton Improvements in or relating to fine drilling or like machine tools
US3081812A (en) * 1960-05-09 1963-03-19 Reed Mfg Co Branch line connection tool
FR1534930A (en) * 1967-06-23 1968-08-02 Bonnamy & Fils E Tools for carrying out a stitching operation on tubes
NL7415559A (en) * 1974-11-28 1976-06-01 Johannes Adrianus Van Geffen METHOD AND PIECE OF TOOL FOR FROSTING HEAT AND PRESSURE TO MAKE A HOLE IN A METAL PLATE OR THE WALL OF A METAL TUBE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117387550A (en) * 2023-10-24 2024-01-12 广州市韦德电气机械有限公司 Servo motor fault detection device and using method thereof
CN117387550B (en) * 2023-10-24 2024-02-20 广州市韦德电气机械有限公司 Servo motor fault detection device and using method thereof

Also Published As

Publication number Publication date
FR2466288B1 (en) 1983-11-25
EP0027080B1 (en) 1983-03-16
FR2466288A1 (en) 1981-04-10
DE3062360D1 (en) 1983-04-21

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