EP0860224B1 - Apparatus with deployable storage magazine for the expansion of the tubes of heat exchanger assemblies of the finned type - Google Patents

Apparatus with deployable storage magazine for the expansion of the tubes of heat exchanger assemblies of the finned type Download PDF

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Publication number
EP0860224B1
EP0860224B1 EP19980420013 EP98420013A EP0860224B1 EP 0860224 B1 EP0860224 B1 EP 0860224B1 EP 19980420013 EP19980420013 EP 19980420013 EP 98420013 A EP98420013 A EP 98420013A EP 0860224 B1 EP0860224 B1 EP 0860224B1
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EP
European Patent Office
Prior art keywords
rods
head
magazine
mobile
expansion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19980420013
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German (de)
French (fr)
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EP0860224A1 (en
Inventor
François Ballet
Eric Laffay
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Compagnie Industrielle dApplications Thermiques SA CIAT
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Compagnie Industrielle dApplications Thermiques SA CIAT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes

Definitions

  • the present invention relates to a machine for the expansion of battery tubes heat exchange according to the preamble of claim 1.
  • Such exchange batteries thermal include a multitude of fins mounted transversely along a series of oriented straight tubes parallel to each other and connected in pairs by angled portions.
  • the expansion rods must be provided, on the movable head and through the trolleys guidance, in a number strictly identical to that of the tubes of the batteries to work. However, this number differs very significantly according to the different types of batteries, depending in particular of the heat exchange capacity provided for them.
  • the machine has a mobile storage magazine which, when each change to the number of expansion rods, is moved to be brought along the sliding axis of the mobile machine head to receive all rods carried by it, automatically unlocked on said head.
  • the store is provided with selection means which act on the stored rods that we want to fix again to the head mobile, these rods being automatically locked on this one.
  • the head then moves so that the stems whose it has been made integral be completely disengaged from store which is finally ordered to return to the position retracted initial which allows the work of dilation.
  • the machine shown in fig. 1 comprises a vertical frame 1 suitably reinforced and guyed. Parallel to the amounts of this frame 1 are provided two columns 2 along which a movable head 3 slides, actuated using hydraulic cylinders 4.
  • the frame 1 supports also two threaded rods 5 oriented vertically and driven in rotation at their base by a gear motor 6 associated with a horizontal connecting shaft 6a. These rods 5 ensure the vertical displacement of a double cross 7 associated with an actuating motor 8 for the usual maneuver flaring cones intended to give the free ends battery tubes a flared profile for easy connection of said tubes.
  • carriages 9 are placed which slide along the columns 2 to guide the expansion rods 10 carried by head 3, which carriages are in known manner linked to each other by flexible links.
  • the vertical frame 1 is associated with a pivoting loading deck 11. At its end facing the frame 1, this deck 11 is equipped with a fixed nose 12 intended to form a support for the batteries to be expanded.
  • hydraulic cylinders 13 carried by the frame 1 ensure the tilting of the deck 11, of the horizontal orientation according to FIG. 1 in the vertical orientation according to fig. 2, by pivoting around two lateral axes referenced 14 in FIG. 2.
  • the deck 11 is provided with a series of plates 15 that side chains 15 a connect to each other, said chains being driven in translation by an electric motor (not shown). These plates 15 are intended to support the batteries to be expanded, held laterally by adjustable tabs 16 (cf. fig. 1).
  • the fixed nose 12 comprises a series of perforations 12 a for the insertion of the fixing plugs 17 a of a series of removable shoes 17.
  • each shoe 17 is hollowed out with a cavity 17 b with concave bottom, suitable for forming housing for the elbows 18 a provided projecting on one of the end faces of the finned batteries 18.
  • a sensor or contactor is provided electric C fixed on the rear face of the fixed nose 12.
  • the machine comprises a retractable storage magazine 19.
  • the base of this magazine 19 is provided with four pads 19 a and a ball nut 19 b .
  • Each shoe 19 has engaged in a horizontal guide 20, while the ball nut 19b cooperates with a horizontal screw control 21.
  • the screw 21 is rotated by a geared motor 22, and it is understood that the operation of this screw 21 ensures the horizontal movement of the magazine 19 in one direction or the other by means of an appropriate control of the motor mechanism 21-22.
  • the front face of the magazine 19 is equipped with an eclipsable backsplash device 23 similar to that which equips the deck 11, in that it is formed by a series of plates 24 connected to each other by two side chains 24 has been properly driven in translation. As illustrated in fig. 2, in the raised position of the deck 11, the plates 15 and 24 come to retain the battery 18 during expansion, this battery bearing against the fixed nose 12 by means of the shoes 17, being oriented along the axis vertical movement of the movable head 3 and the double cross 7.
  • the magazine 19 comprises a series of vertical tubes 25 (FIG. 4) in a number equal to the maximum number of expansion rods 10 capable of being fixed to the movable head 3; these tubes 25 are made rigidly integral with the upper and lower crosspieces of the magazine 19, and each of them is intended to form housing for a rod 10.
  • each rod 10 is hollowed out at the top of an annular groove 10 a which defines an overhanging head 10 b , while its lower end comprises in the usual manner a projecting olive 10 c for the expansion of the battery tubes treat.
  • the latter For fixing the upper part of the rods 10 on the movable head 3, the latter is provided with a movable locking plate 26 which slides horizontally in the thickness of said head 3, under the effect of an actuator 27 such than a small cylinder.
  • This plate 26 is cut from a series of openings 26 a in number equal to that of the rods 10, each of these openings 26 a having the buttonhole profile which appears in FIG. 4 a .
  • each of the rods 10 is capable of coming to engage in a blind vertical housing 3 practiced for this purpose in the head 3, while when said rod has been inserted into one of the tubes 25 of the magazine 19, its projecting lower part is introduced into a vertical housing 19 c of the base of the magazine 19, the lower end of each tube 25 being fitted into the upper outlet of the corresponding housing 19 c .
  • a movable locking plate 28 identical to the plate 26 above indicated.
  • each housing 19 c protrudes the end of the movable rod of a small selection cylinder 30.
  • Each cylinder 30, arranged vertically in a block 31 secured to the base of the magazine 19, is placed under the dependence of one of the sensors C of the fixed nose 12, as illustrated in FIG. 3. Things are arranged in such a way that the rod of the jacks 30 corresponding to the sensors C actuated by the plugs 17a of the shoes 17 fixed on the nose 12, is pushed vertically to adopt the high position illustrated in FIG. 7, said jacks 30 being supplied through independent solenoid valves mounted in a general distributor 32 and connected to said sensors C.
  • the gear motor 22 is actuated to advance the magazine 19 (cf. fig. 9) which is placed in the sliding axis of the head 3 and the double cross member 7.
  • the movable head 3 is lowered so that the rods 10 which are fixed to it are engaged axially in the tubes 25 of the magazine 19 in the advanced position.
  • the movable head 3 is then controlled over a short height upwards (FIG. 6) at the same time as the jack 29 is supplied so that the bottom plate 28 locks and retains all the rods 10 in the magazine 19. Then the jacks of selection 30 are supplied so that the rod of those which correspond to the sensors C controlled by the shoes 17 push upwards the corresponding rods 10 (fig. 7).
  • the plate 26 is placed under the head 10b of the only rods 10 which have been selected, which has the effect of making the latter integral with the movable head 3.
  • This head 3 can consequently move upwards (fig. 11) by driving the selected rods in its course.
  • Head 3 is raised to its upper end-of-travel in order to take the rods 10 out of the tubes 25 from the magazine 19. The latter can then return to its retracted position (fig. 12).
  • the plates 15 are positioned on the deck 11 and the device backrest 23 is brought towards the front of the storage unit 19 in depending on the height of the new battery to be treated.
  • the movable head 3 can finally move downwards (fig. 13), the rods 10 which it carries ensuring by their olive 10 c the expansion of the tubes of said battery 18 and, at the end of movement and by vertical displacement of the cones carried by the double cross member 7, the flaring of the upper ends of the tubes of this battery.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Warehouses Or Storage Devices (AREA)

Description

La présente invention concerne une machine pour la dilatation des tubes des batteries d'échange thermique selon le préambule de la revendication 1. De telles batteries d'échange thermique comprennent une multitude d'ailettes montées transversalement le long d'une série de tubes rectilignes orientés parallèlement les uns aux autres et reliés par paires par des portions coudées.The present invention relates to a machine for the expansion of battery tubes heat exchange according to the preamble of claim 1. Such exchange batteries thermal include a multitude of fins mounted transversely along a series of oriented straight tubes parallel to each other and connected in pairs by angled portions.

On sait que pour assurer une fixation parfaite des ailettes sur les tubes et améliorer ainsi la transmission thermique entre lesdites ailettes et tubes, il est nécessaire, une fois les ailettes provisoirement montées le long des tubes et préalablement à la pose des parties de raccordement, de procéder à la dilatation à force de ces tubes- Cette opération est le plus souvent réalisée en introduisant dans chacun des tubes de la batterie une tige pourvue d'un embout en forme d'olive dont le diamètre est légèrement supérieur au diamètre interne des tubes.We know that to ensure perfect fixation of fins on the tubes and thus improve transmission thermal between said fins and tubes, it is necessary, once the fins are temporarily mounted along the tubes and before installing the connection parts, force-dilate these tubes- This operation is most often carried out by introducing into each of the battery tubes a rod with a shaped tip olive whose diameter is slightly greater than the diameter internal tubes.

Les documents FR-A-2 369 033 (CHAUSSON) et US-A-4 738 130 (HOMMA) illustrent bien cette technique.Documents FR-A-2 369 033 (CHAUSSON) and US-A-4,738,130 (HOMMA) illustrate this technique well.

Pour obtenir l'enfoncement simultané de l'ensemble des tiges de dilatation, on a généralement recours à des machines semblables à des presses, qui comportent une tête mobile équipée d'une série de tiges parallèles, et un nez fixe au droit duquel est retenue la batterie à dilater. Entre la tête et le nez sont prévus des chariots de guidage propres à éviter tout flambage intempestif des tiges.To obtain the simultaneous insertion of all the expansion rods, we usually use machines similar to presses, which have a movable head equipped with a series of parallel rods, and a fixed nose at right of which is retained the battery to expand. Between the head and the nose are provided with guide carriages suitable for avoiding any untimely buckling of the stems.

Bien évidemment, les tiges de dilatation doivent être prévues, sur la tête mobile et au travers des chariots de guidage, en nombre strictement identique à celui des tubes des batteries à travailler. Or, ce nombre diffère très sensiblement suivant les différents types de batteries, en fonction notamment de la capacité d'échange thermique prévue pour celles-ci.Obviously, the expansion rods must be provided, on the movable head and through the trolleys guidance, in a number strictly identical to that of the tubes of the batteries to work. However, this number differs very significantly according to the different types of batteries, depending in particular of the heat exchange capacity provided for them.

On conçoit dans ces conditions que l'adaptation d'une telle machine à la dilatation d'un nouveau type de batteries implique un travail long et fastidieux. Effectivement, si les nouvelles batteries à dilater comportent un nombre de tubes inférieur à celui des batteries antérieurement travaillées, il y a lieu de démonter de la tête mobile les tiges excédentaires et de les dégager manuellement des chariots de guidage. Dans le cas inverse, c'est-à-dire si les nouvelles batteries présentent un nombre de tubes supérieur à celui des précédentes, il faut au contraire engager des tiges supplémentaires dans les ouvertures des différents chariots de guidage et assujettir leur extrémité sur la tête mobile.It is therefore conceivable that the adaptation of a such a machine for the expansion of a new type of batteries involves long and tedious work. Indeed, if the new expandable batteries have a number of tubes lower than that of previously worked batteries, it excess rods must be removed from the movable head and to manually release them from the guide carriages. In the reverse case, i.e. if the new batteries have more tubes than the previous ones, instead engage additional rods in the openings of the various guide carriages and secure their end on the movable head.

Ces opérations, confiées à un personnel spécialisé, se révèlent très coûteuses, ne serait-ce que par suite de l'arrêt prolongé du cycle de fabrication des batteries échangeuses, surtout lorsqu'on a affaire à des productions en petites séries qui nécessitent évidemment des adaptations fréquentes.These operations, entrusted to specialized personnel, are prove to be very costly, if only as a result of the judgment extended manufacturing cycle for exchanger batteries, especially when dealing with productions in small series which obviously require frequent adaptations.

C'est à cet inconvénient qu'entend principalement remédier la présente invention par une machine avec les caractéristiques de la revendication 1. Les revendications dépendantes énoncent des caractéristiques préférés de la machine.. La machine est dotée d'un magasin mobile de stockage qui, lors de chaque modification apportée au nombre de tiges de dilatation, est déplacé pour être amené suivant l'axe de coulissement de la tête mobile de la machine afin de recevoir toutes les tiges portées par celle-ci, automatiquement déverrouillées sur ladite tête. Le magasin est pourvu de moyens de sélection qui agissent sur les tiges stockées qu'on désire fixer à nouveau à la tête mobile, ces tiges se trouvant automatiquement verrouillées sur celle-ci. La tête se déplace ensuite pour que les tiges dont elle a été rendue solidaire soient complètement dégagées du magasin qui est enfin commandé pour revenir à la position escamotée initiale qui permet le travail de dilatation.It is to this drawback that the main aim is to remedy the present invention by a machine with the features of the claim 1. The dependent claims set forth preferred characteristics of the machine. The machine has a mobile storage magazine which, when each change to the number of expansion rods, is moved to be brought along the sliding axis of the mobile machine head to receive all rods carried by it, automatically unlocked on said head. The store is provided with selection means which act on the stored rods that we want to fix again to the head mobile, these rods being automatically locked on this one. The head then moves so that the stems whose it has been made integral be completely disengaged from store which is finally ordered to return to the position retracted initial which allows the work of dilation.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer:

  • Fig. 1 est une vue en perspective montrant schématiquement l'agencement général d'une machine suivant l'invention, représentée à la position de chargement, prête à recevoir une batterie à dilater ;
  • Fig. 2 est une coupe verticale schématique montrant à plus grande échelle la partie inférieure de la machine suivant fig. 1, avec la batterie représentée en cours de dilatation ;
  • Fig. 3 illustre la mise en place, sur le nez fixe, des sabots qui assurent la sélection des tiges de dilatation en fonction de la conformation des batteries à dilater ;
  • Fig. 4 à 7 sont des coupes verticales de détail représentant le verrouillage et le déverrouillage des tiges sur la tête mobile et dans le magasin de stockage, ainsi que la sélection de ces tiges ;
  • Fig. 8 à 13 sont des schémas illustrant le déplacement des organes mobiles de la machine lors de l'adaptation de celle-ci à la dilatation d'une batterie ailetée d'un type différent.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Fig. 1 is a perspective view schematically showing the general arrangement of a machine according to the invention, shown in the loading position, ready to receive a battery to expand;
  • Fig. 2 is a schematic vertical section showing on a larger scale the lower part of the machine according to FIG. 1, with the battery shown during expansion;
  • Fig. 3 illustrates the installation, on the fixed nose, of the shoes which ensure the selection of the expansion rods as a function of the conformation of the batteries to be expanded;
  • Fig. 4 to 7 are vertical detail sections showing the locking and unlocking of the rods on the movable head and in the storage magazine, as well as the selection of these rods;
  • Fig. 8 to 13 are diagrams illustrating the movement of the movable members of the machine during the adaptation of the latter to the expansion of a finned battery of a different type.

A la façon usuelle, la machine représentée en fig. 1 comprend un bâti vertical 1 convenablement renforcé et haubané. Parallèlement aux montants la de ce bâti 1 sont prévues deux colonnes 2 le long desquelles coulisse une tête mobile 3, actionnée à l'aide de vérins hydrauliques 4. Le bâti 1 supporte également deux tiges filetées 5 orientées verticalement et entraínées en rotation à leur base par un moto-réducteur 6 associé à un arbre horizontal 6a de liaison. Ces tiges 5 assurent le déplacement vertical d'une traverse double 7 associée à un moteur d'actionnement 8 pour la manoeuvre usuelle des cônes d'évasement destinés à conférer aux extrémités libres des tubes des batteries un profil évasé facilitant le raccordement desdits tubes. Entre la tête 3 et la traverse double 7 sont placés des chariots 9 qui coulissent le long des colonnes 2 pour assurer le guidage des tiges de dilatation 10 portées par la tête 3, lesquels chariots sont à la façon en soi connue reliés les uns aux autres par des liens souples.In the usual way, the machine shown in fig. 1 comprises a vertical frame 1 suitably reinforced and guyed. Parallel to the amounts of this frame 1 are provided two columns 2 along which a movable head 3 slides, actuated using hydraulic cylinders 4. The frame 1 supports also two threaded rods 5 oriented vertically and driven in rotation at their base by a gear motor 6 associated with a horizontal connecting shaft 6a. These rods 5 ensure the vertical displacement of a double cross 7 associated with an actuating motor 8 for the usual maneuver flaring cones intended to give the free ends battery tubes a flared profile for easy connection of said tubes. Between head 3 and double cross 7 carriages 9 are placed which slide along the columns 2 to guide the expansion rods 10 carried by head 3, which carriages are in known manner linked to each other by flexible links.

Au bâti vertical 1 est associé un tablier pivotant de chargement 11. A son extrémité tournée vers le bâti 1, ce tablier 11 est équipé d'un nez fixe 12 destiné à former appui pour les batteries à dilater. Comme montré en fig. 2, des vérins hydrauliques 13 portés par le bâti 1 assurent le basculement du tablier 11, de l'orientation horizontale suivant fig. 1 à l'orientation verticale suivant fig. 2, moyennant pivotement autour de deux axes latéraux référencés 14 en fig. 2. A la façon connue, le tablier 11 est pourvu d'une série de plaques 15 que des chaínes latérales 15a relient les unes aux autres, lesdites chaínes étant entraínées en translation par un moteur électrique (non représenté). Ces plaques 15 sont destinées à supporter les batteries à dilater, maintenues latéralement par des taquets réglables 16 (cf. fig. 1). The vertical frame 1 is associated with a pivoting loading deck 11. At its end facing the frame 1, this deck 11 is equipped with a fixed nose 12 intended to form a support for the batteries to be expanded. As shown in fig. 2, hydraulic cylinders 13 carried by the frame 1 ensure the tilting of the deck 11, of the horizontal orientation according to FIG. 1 in the vertical orientation according to fig. 2, by pivoting around two lateral axes referenced 14 in FIG. 2. In known manner, the deck 11 is provided with a series of plates 15 that side chains 15 a connect to each other, said chains being driven in translation by an electric motor (not shown). These plates 15 are intended to support the batteries to be expanded, held laterally by adjustable tabs 16 (cf. fig. 1).

Comme représenté en fig. 3, le nez fixe 12 comporte une série de perforations 12a pour l'insertion des fiches de fixation 17a d'une série de sabots amovibles 17. A l'opposé des fiches 17a, chaque sabot 17 est creusé d'une cavité 17b à fond concave, propre à former logement pour les coudes 18a prévus dépassants sur l'une des faces d'extrémité des batteries ailetées 18. En vis-à-vis de chaque perforation 12a, il est prévu un capteur ou contacteur électrique C fixé sur la face arrière du nez fixe 12.As shown in fig. 3, the fixed nose 12 comprises a series of perforations 12 a for the insertion of the fixing plugs 17 a of a series of removable shoes 17. Unlike the sheets 17 a , each shoe 17 is hollowed out with a cavity 17 b with concave bottom, suitable for forming housing for the elbows 18 a provided projecting on one of the end faces of the finned batteries 18. With respect to each perforation 12 a , a sensor or contactor is provided electric C fixed on the rear face of the fixed nose 12.

En arrière du bâti 1 par rapport au tablier 11, la machine comporte un magasin escamotable de stockage 19. Comme montré en fig. 2, la base de ce magasin 19 est pourvue de quatre patins 19a et d'un écrou à billes 19b. Chaque patin 19a est engagé dans une glissière horizontale 20, tandis que l'écrou à billes 19b coopére avec une vis horizontale de commande 21. La vis 21 est entraínée en rotation par un moto-réducteur 22, et l'on conçoit que la manoeuvre de cette vis 21 assure le déplacement horizontal du magasin 19 dans un sens ou dans l'autre moyennant une commande appropriée du mécanisme moteur 21-22.Behind the frame 1 with respect to the deck 11, the machine comprises a retractable storage magazine 19. As shown in FIG. 2, the base of this magazine 19 is provided with four pads 19 a and a ball nut 19 b . Each shoe 19 has engaged in a horizontal guide 20, while the ball nut 19b cooperates with a horizontal screw control 21. The screw 21 is rotated by a geared motor 22, and it is understood that the operation of this screw 21 ensures the horizontal movement of the magazine 19 in one direction or the other by means of an appropriate control of the motor mechanism 21-22.

La face avant du magasin 19 est équipée d'un dispositif éclipsable de dosseret 23 analogue à celui qui équipe le tablier 11, en ce sens qu'il est formé d'une série de plaques 24 reliées les unes aux autres par deux chaínes latérales 24a convenablement entraínées en translation. Comme illustré en fig. 2, a la position relevée du tablier 11, les plaques 15 et 24 viennent retenir la batterie 18 en cours de dilatation, cette batterie prenant appui contre le nez fixe 12 par l'intermédiaire des sabots 17, en se trouvant orientée suivant l'axe de déplacement vertical de la tête mobile 3 et de la traverse double 7.The front face of the magazine 19 is equipped with an eclipsable backsplash device 23 similar to that which equips the deck 11, in that it is formed by a series of plates 24 connected to each other by two side chains 24 has been properly driven in translation. As illustrated in fig. 2, in the raised position of the deck 11, the plates 15 and 24 come to retain the battery 18 during expansion, this battery bearing against the fixed nose 12 by means of the shoes 17, being oriented along the axis vertical movement of the movable head 3 and the double cross 7.

Le magasin 19 comprend une série de tubes verticaux 25 (fig. 4) en nombre égal au nombre maximum de tiges de dilatation 10 susceptibles d'être fixées à la tête mobile 3 ; ces tubes 25 sont rendus rigidement solidaires des traverses supérieure et inférieure du magasin 19, et chacun d'eux est destiné à former logement pour une tige 10. A la manière illustrée en fig. 4 à 7, chaque tige 10 est creusée à son sommet d'une gorge annulaire 10a qui définit une tête débordante 10b, tandis que son extrémité inférieure comporte à la manière usuelle une olive en saillie 10c pour la dilatation des tubes des batteries à traiter.The magazine 19 comprises a series of vertical tubes 25 (FIG. 4) in a number equal to the maximum number of expansion rods 10 capable of being fixed to the movable head 3; these tubes 25 are made rigidly integral with the upper and lower crosspieces of the magazine 19, and each of them is intended to form housing for a rod 10. In the manner illustrated in FIG. 4 to 7, each rod 10 is hollowed out at the top of an annular groove 10 a which defines an overhanging head 10 b , while its lower end comprises in the usual manner a projecting olive 10 c for the expansion of the battery tubes treat.

Pour la fixation de la partie supérieure des tiges 10 sur la tête mobile 3, cette dernière est munie d'une plaque mobile de verrouillage 26 qui coulisse horizontalement dans l'épaisseur de ladite tête 3, sous l'effet d'un actionneur 27 tel qu'un petit vérin. Cette plaque 26 est découpée d'une série d'ouvertures 26a en nombre égal à celui des tiges 10, chacune de ces ouvertures 26a présentant le profil en forme de boutonnière qui apparaít sur la fig. 4a.For fixing the upper part of the rods 10 on the movable head 3, the latter is provided with a movable locking plate 26 which slides horizontally in the thickness of said head 3, under the effect of an actuator 27 such than a small cylinder. This plate 26 is cut from a series of openings 26 a in number equal to that of the rods 10, each of these openings 26 a having the buttonhole profile which appears in FIG. 4 a .

La partie supérieure de chacune des tiges 10 est propre à venir s'engager dans un logement vertical borgne 3a pratiqué à cet effet dans la tête 3, tandis que lorsque ladite tige a été introduite dans l'un des tubes 25 du magasin 19, sa partie inférieure dépassante est introduite dans un logement vertical 19c de la base du magasin 19, l'extrémité inférieure de chaque tube 25 étant emmanchée dans le débouché supérieur du logement 19c correspondant.The upper part of each of the rods 10 is capable of coming to engage in a blind vertical housing 3 practiced for this purpose in the head 3, while when said rod has been inserted into one of the tubes 25 of the magazine 19, its projecting lower part is introduced into a vertical housing 19 c of the base of the magazine 19, the lower end of each tube 25 being fitted into the upper outlet of the corresponding housing 19 c .

Dans l'épaisseur de la base du magasin 19 est montée à coulissement horizontal une plaque mobile de verrouillage 28 identique à la plaque 26 ci-dessus indiquée. Cette plaque 28, actionnée à l'aide d'un vérin latéral 29, est découpée d'ouvertures ou boutonnières 28a.In the thickness of the base of the magazine 19 is mounted with horizontal sliding a movable locking plate 28 identical to the plate 26 above indicated. This plate 28, actuated by means of a lateral jack 29, is cut out of openings or buttonholes 28 a .

Dans le fond de chaque logement 19c fait saillie l'extrémité de la tige mobile d'un petit vérin de sélection 30. Chaque vérin 30, ménagé verticalement dans un bloc 31 solidaire de la base du magasin 19, est placé sous la dépendance de l'un des capteurs C du nez fixe 12, ainsi qu'on l'a illustré en fig. 3. Les choses sont agencées de manière telle que la tige des vérins 30 correspondant aux capteurs C actionnés par les fiches 17a des sabots 17 fixés sur le nez 12, est repoussée verticalement pour adopter la position haute illustrée en fig. 7, lesdits vérins 30 étant alimentés à travers des électrovannes indépendantes montées dans un distributeur général 32 et reliées auxdits capteurs C.In the bottom of each housing 19 c protrudes the end of the movable rod of a small selection cylinder 30. Each cylinder 30, arranged vertically in a block 31 secured to the base of the magazine 19, is placed under the dependence of one of the sensors C of the fixed nose 12, as illustrated in FIG. 3. Things are arranged in such a way that the rod of the jacks 30 corresponding to the sensors C actuated by the plugs 17a of the shoes 17 fixed on the nose 12, is pushed vertically to adopt the high position illustrated in FIG. 7, said jacks 30 being supplied through independent solenoid valves mounted in a general distributor 32 and connected to said sensors C.

On va maintenant exposer le fonctionnement de la machine suivant l'invention, en se référant aux fig. 4 à 7 et aux schémas correspondants des fig. 8 à 13.We will now explain the operation of the machine according to the invention, with reference to FIGS. 4 to 7 and aux corresponding diagrams of fig. 8 to 13.

En fig. 8, on a supposé qu'on se trouvait à la fin d'une opération de dilatation et qu'il y avait lieu de régler la machine pour l'adapter à un nouveau type de batteries. Le tablier 11 a été amené en position basse pour permettre l'évacuation de la batterie 18 qui a été dilatée. L'opérateur introduit les données relatives aux dimensions de la nouvelle batterie à dilater sur le pupitre de commande de la machine et place sur le nez fixe 12 porté par le tablier 11, les sabots 17 qui sont nécessaires à l'appui correct de la nouvelle batterie contre le nez fixe 12, le nombre des sabots 17 ainsi mis en place étant égal au nombre de paires de tubes de la batterie. Les fiches 17a des sabots 17 actionnent en conséquence les capteurs C correspondants. Les vérins 4 et les tiges filetées 5 sont manoeuvrés automatiquement de façon à ce que la tête et la traverse double 7 se trouvent toutes deux en position haute maximale, avec les tiges 10 verrouillées sur ladite tête 3.In fig. 8, it was assumed that we were at the end of an expansion operation and that the machine had to be adjusted to adapt it to a new type of battery. The apron 11 was brought into the low position to allow the evacuation of the battery 18 which has been expanded. The operator enters the data relating to the dimensions of the new battery to be dilated on the control console of the machine and places on the fixed nose 12 carried by the apron 11, the shoes 17 which are necessary for the correct support of the new battery against the fixed nose 12, the number of shoes 17 thus put in place being equal to the number of pairs of tubes of the battery. The plugs 17 has shoes 17 therefore actuate the corresponding sensors C. The jacks 4 and the threaded rods 5 are actuated automatically so that the head and the double cross-member 7 are both in the maximum high position, with the rods 10 locked on said head 3.

Ensuite, le dispositif de dosseret 23 est éclipsé vers le bas et vers l'arrière du magasin de stockage 19. Le moto-réducteur 22 est actionné pour faire avancer le magasin 19 (cf. fig. 9) qui vient se disposer dans l'axe de coulissement de la tête 3 et de la traverse double 7.Then the backsplash device 23 is eclipsed towards the down and towards the rear of the storage magazine 19. The gear motor 22 is actuated to advance the magazine 19 (cf. fig. 9) which is placed in the sliding axis of the head 3 and the double cross member 7.

La tête mobile 3 est abaissée afin que les tiges 10 qui lui sont fixées soient engagées axialement dans les tubes 25 du magasin 19 à la position avancée. On se trouve alors à la position suivant fig. 4, l'olive terminale 10c de chaque tige 10 étant disposée légèrement au-dessus du vérin 30 correspon-. dant alors en position contractée.The movable head 3 is lowered so that the rods 10 which are fixed to it are engaged axially in the tubes 25 of the magazine 19 in the advanced position. We are then in the position according to fig. 4, the terminal olive 10 c of each rod 10 being disposed slightly above the corresponding cylinder 30. then in the contracted position.

Les deux vérins ou actionneurs 27 et 29 sont ensuite actionnés (fig. 5), si bien que les tiges 10 sont libérées de la tête 3 et tombent pour finalement reposer par leur olive 10c contre l'extrémité supérieure du vérin de sélection 30 correspondant. Il convient ici d'observer que toutes les tiges de dilatation de la machine se trouvent à ce moment stockées dans le magasin 19.The two cylinders or actuators 27 and 29 are then actuated (fig. 5), so that the rods 10 are released from head 3 and fall to finally rest by their olive 10c against the upper end of the corresponding selection cylinder 30. It should be noted here that all the stems of machine expansion are currently stored in store 19.

La tête mobile 3 est alors commandée sur une courte hauteur vers le haut (fig. 6) en même temps que le vérin 29 est alimenté afin que la plaque inférieure 28 verrouille et retienne toutes les tiges 10 dans le magasin 19. Puis les vérins de sélection 30 sont alimentés pour que la tige de ceux qui correspondent aux capteurs C commandés par les sabots 17 repoussent vers le haut les tiges 10 correspondantes (fig. 7). Moyennant actionnement du vérin 27, la plaque 26 vient se disposer sous la tête 10b des seules tiges 10 qui ont été sélectionnées, ce qui a pour effet de rendre ces dernières solidaires de la tête mobile 3. Cette tête 3 peut en conséquence se déplacer vers le haut (fig. 11) en entraínant dans sa course les tiges sélectionnées.The movable head 3 is then controlled over a short height upwards (FIG. 6) at the same time as the jack 29 is supplied so that the bottom plate 28 locks and retains all the rods 10 in the magazine 19. Then the jacks of selection 30 are supplied so that the rod of those which correspond to the sensors C controlled by the shoes 17 push upwards the corresponding rods 10 (fig. 7). By actuating the jack 27, the plate 26 is placed under the head 10b of the only rods 10 which have been selected, which has the effect of making the latter integral with the movable head 3. This head 3 can consequently move upwards (fig. 11) by driving the selected rods in its course.

La tête 3 est remontée jusqu'à sa fin de course supérieure afin de sortir les tiges 10 des tubes 25 du magasin 19. Celui-ci peut alors retourner à sa position reculée (fig. 12). Les plaques 15 sont positionnées sur le tablier 11 et le dispositif de dosseret 23 est ramené vers l'avant du stockeur 19 en fonction de la hauteur de la nouvelle batterie à traiter.Head 3 is raised to its upper end-of-travel in order to take the rods 10 out of the tubes 25 from the magazine 19. The latter can then return to its retracted position (fig. 12). The plates 15 are positioned on the deck 11 and the device backrest 23 is brought towards the front of the storage unit 19 in depending on the height of the new battery to be treated.

L'opérateur place la nouvelle batterie 18 à dilater et la serre sur les plaques 15. Puis le tablier 11 est ramené à la position verticale avec la batterie 18 à dilater, dont le serrage est obtenu moyennant un très court mouvement d'avance du magasin 19.The operator places the new battery 18 to be dilated and the press on the plates 15. Then the apron 11 is brought back to the vertical position with the battery 18 to be expanded, the tightening is achieved with a very short advance movement from store 19.

La machine ayant été ainsi adaptée à la configuration de la nouvelle batterie 18, la tête mobile 3 peut enfin se déplacer vers le bas (fig. 13), les tiges 10 qu'elle porte assurant par leur olive 10c la dilatation des tubes de ladite batterie 18 et, en fin de mouvement et moyennant déplacement vertical des cônes portés par la traverse double 7, l'évasement des extrémités supérieures des tubes de cette batterie.The machine having thus been adapted to the configuration of the new battery 18, the movable head 3 can finally move downwards (fig. 13), the rods 10 which it carries ensuring by their olive 10 c the expansion of the tubes of said battery 18 and, at the end of movement and by vertical displacement of the cones carried by the double cross member 7, the flaring of the upper ends of the tubes of this battery.

Il va de soi que la succession des commandes est susceptible d'être aisément obtenue à l'aide d'un programmateur classique. L'ensemble des opérations peut ainsi se dérouler à un rythme accéléré, de sorte que l'adaptation de la machine à un nouveau type de batterie ailetée n'exige que très peu de temps.It goes without saying that the succession of orders is likely to be easily obtained using a programmer classic. All operations can thus take place at an accelerated pace, so that the adaptation of the machine to a new type of finned battery requires very little time.

Claims (8)

  1. Machine for the expansion of the tubes of heat-exchange batteries of the finned type, of the type comprising a mobile head (3) which, mounted to slide on a fixed frame (1), is equipped with a series of dismountable rods (10) provided with an expansion olive (10c) adapted, by displacement of said head (3), to be introduced by force inside the tubes of a battery (18) maintained in abutment against a fixed retaining nose (12), characterized in that it further comprises a mobile storage magazine (19) associated with a motor mechanism (21-22) which, upon each modification made to the number of rods (10), intervenes to bring said magazine (19) along the axis of slide of the head (3) in order to receive all the rods (10) after unlocking thereof on this head, while selection means (C, 30) are provided to act on the rods (10) in the stored state which must again be rendered fast with the head (3) and which are automatically locked thereon, which head is again displaced in order to disengage the selected rods from the magazine that the motor mechanism (21-22) finally returns to the retracted position allowing the expansion operation.
  2. Machine according to Claim 1, characterized in that the motor mechanism associated with the retractable magazine (19) comprises a gear motor (22) which actuates a control screw (21) cooperating with a ball nut (19b) borne by the base of said magazine (19).
  3. Machine according to either one of Claims 1 and 2, characterized in that the selection means comprise electrical sensors or contactors (C) fixed against the fixed nose (12) at the level of perforations (12a) intended to receive the pins (17a) of a series of removable shoes (17) shaped to form housings for the elbows (18a) of the batteries (18) to be expanded.
  4. Machine according to Claim 3, characterized in that the selection means also comprise a series of jacks (30) placed under the dependence of the sensors (C) and arranged so that their mobile rod pushes the expansion rods (10) which correspond to the shoes (17).
  5. Machine according to any one of Claims 1 to 4, characterized in that the fixed nose (12) is fixed on a pivoting loading platform (11) equipped with mobile plates (15) forming supports for the battery (18) to be expanded.
  6. Machine according to Claim 5, characterized in that the storage magazine (19) is equipped with a retractable backrest (23) formed by mobile plates (24) adapted to cooperate with the mobile plates (15) of the pivoting platform (11) in order to maintain the battery (18) during expansion.
  7. Machine according to any one of Claims 1 to 6, characterized in that locking of the expansion rods (10) on the mobile head (3) is effected with the aid of a mobile plate (26) associated with an actuator (27) and having a series of openings (26a) cut out therein in a number equal to that of said rods, each of these openings presenting a profile in the form of a button-hole adapted to cooperate with an annular groove (10a) provided to that end at the summit of each rod.
  8. Machine according to Claim 7, characterized in that, for retaining inside the magazine (19) rods (10) which have not been selected, said magazine is equipped with a mobile locking plate (28) and with an actuator (29) identical to that (26) and to that (27) of the mobile head (3).
EP19980420013 1997-01-27 1998-01-23 Apparatus with deployable storage magazine for the expansion of the tubes of heat exchanger assemblies of the finned type Expired - Lifetime EP0860224B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9701027A FR2758750B1 (en) 1997-01-27 1997-01-27 RETRACTABLE STORAGE MACHINE FOR THE EXPANSION OF THE TUBES OF THE THERMAL EXCHANGE BATTERIES OF THE WINGED TYPE
FR9701027 1997-01-27

Publications (2)

Publication Number Publication Date
EP0860224A1 EP0860224A1 (en) 1998-08-26
EP0860224B1 true EP0860224B1 (en) 2000-12-06

Family

ID=9503144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980420013 Expired - Lifetime EP0860224B1 (en) 1997-01-27 1998-01-23 Apparatus with deployable storage magazine for the expansion of the tubes of heat exchanger assemblies of the finned type

Country Status (4)

Country Link
EP (1) EP0860224B1 (en)
DE (1) DE69800417T2 (en)
ES (1) ES2152740T3 (en)
FR (1) FR2758750B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1315764B1 (en) * 2000-12-07 2003-03-18 C M S Costruzione Macchine Spe VERTICAL SPINDLE STRUCTURE.
CN108817244A (en) * 2018-08-10 2018-11-16 珠海格力智能装备有限公司 Suspension mechanism and pipe expander with same
CN118023417A (en) * 2023-12-23 2024-05-14 广东博益空调配套设备有限公司 Vertical pipe expander

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369033A1 (en) * 1976-10-28 1978-05-26 Chausson Usines Sa PROCE
US4738130A (en) * 1985-11-08 1988-04-19 Kyoshin Kogyo Kabushiki Kaisha Structure for mounting mandrels in tube expanding apparatus
IT1264434B1 (en) * 1992-06-12 1996-09-23 Burr Oak Tool & Gauge MECHANICAL EXPANDER FOR PIPES, WITH CONTROL ON FOUR AXES
US5432994A (en) * 1993-03-02 1995-07-18 Kyoshin Kogyo Co. Ltd. Tube expander with a means for transporting heat exchangers in tube expanding process

Also Published As

Publication number Publication date
ES2152740T3 (en) 2001-02-01
DE69800417D1 (en) 2001-01-11
DE69800417T2 (en) 2001-04-19
FR2758750B1 (en) 1999-03-12
EP0860224A1 (en) 1998-08-26
FR2758750A1 (en) 1998-07-31

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