EP1594642B1 - Automated decoring system and decoring device - Google Patents

Automated decoring system and decoring device Download PDF

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Publication number
EP1594642B1
EP1594642B1 EP04704633A EP04704633A EP1594642B1 EP 1594642 B1 EP1594642 B1 EP 1594642B1 EP 04704633 A EP04704633 A EP 04704633A EP 04704633 A EP04704633 A EP 04704633A EP 1594642 B1 EP1594642 B1 EP 1594642B1
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EP
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Prior art keywords
frame
decoring
decored
space
motors
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German (de)
French (fr)
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EP1594642A1 (en
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Marcel Massin
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Massin Technologies
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Massin Technologies
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/005—Removing cores by vibrating or hammering

Abstract

An automatic foundry casting core removal system comprises a plurality of removal devices, each made up of a chassis (1) in the form of fork with two branches (11, 12), the space (13) between the two branches being designed to receive a piece to be removed, and each removal device being enclosed in an enclosure (19) with a single charging gate for the piece. The plurality of removal devices are arranged in a working range of a charging robot (21) provided to charge the piece to be removed into the space of the removal device. An Independent claim is also included for the removal device incorporated in this core removal system.

Description

La présente invention concerne un système automatisé de débourrage de noyaux de coulée de pièces de fonderie, et les dispositifs de débourrage que comprend le système de débourrage.The present invention relates to an automated system for debugging casting cores, and the stripping devices that comprise the stripping system.

Une pièce de fonderie comportant des parties creuses est généralement moulée autour d'un mélange de sable et de résine, dit noyau de coulée, de formes complémentaires à celles des parties creuses. Les noyaux de coulée sont ensuite éliminés, en particulier lorsque la forme de la pièce de fonderie est complexe, en soumettant cette dernière à un martelage afin de décrocher les noyaux de coulée de la pièce, puis à des vibrations afin de désagréger les noyaux et d'évacuer les fragments par gravité.A casting with hollow portions is generally molded around a mixture of sand and resin, said casting core, complementary shapes to those of the hollow portions. The casting cores are then removed, particularly when the shape of the casting is complex, by subjecting it to a hammering to unhook the casting cores of the part, then to vibration to break up the cores and d evacuate the fragments by gravity.

Il est connu, par la demande de brevet FR 2 711 931 , un dispositif de débourrage constitué d'un châssis relié à un support fixe par quatre articulations cylindriques verticales, déformables transversalement de façon élastique, et disposées symétriquement par rapport à l'axe de symétrie du châssis, qui correspond à son centre de gravité. Le châssis est constitué de trois plaques symétriques horizontales reliées entre elles par deux âmes soudées aux plaques. Deux moteurs à balourd, à axe de rotation vertical, et montés dans le plan de symétrie des trois plaques, de chaque côté du châssis, permettent de secouer les pièces de fonderie à débourrer. Le châssis comporte deux ouvertures rectangulaires à chaque extrémité du châssis. Un vérin pneumatique est situé dans chacune de ces ouvertures, afin de maintenir une pièce entre le vérin et un côté de l'ouverture, à chaque extrémité du châssis. Ce dernier côté de l'ouverture est percé pour permettre de faire passer un marteau pneumatique qui vient marteler la pièce. Les deux vérins sont montés en opposition l'un par rapport à l'autre. Un inconvénient de ce dispositif de débourrage est qu'il est encombrant. De ce fait, son implantation sur un site industriel entraîne de sévères contraintes d'espace. Un autre inconvénient de ce dispositif est qu'il est lourd, donc doté de gros moteurs, ce qui entraîne un coût important de fabrication et une consommation importante d'énergie. De plus, ceci entraîne une amplitude de mouvement relativement peu importante, donc une durée de désintégration du noyau élevée. Un troisième inconvénient de ce dispositif est que l'accès se fait par deux endroits situés à l'opposé l'un de l'autre, ce qui est peu pratique pour le chargement des pièces. De plus, la mise en marche du dispositif ne peut commencer qu'une fois que deux pièces sont chargées et serrées, chacune dans une des ouvertures du châssis, ce qui rend le temps d'attente entre deux cycles assez long.It is known by the patent application FR 2 711 931 , a stripping device consisting of a frame connected to a fixed support by four vertical cylindrical joints, deformable transversely elastically, and arranged symmetrically with respect to the axis of symmetry of the frame, which corresponds to its center of gravity. The frame consists of three horizontal symmetrical plates interconnected by two webs welded to the plates. Two unbalanced motors, with a vertical axis of rotation, and mounted in the plane of symmetry of the three plates, on each side of the frame, make it possible to shake the castings to be unraveled. The chassis has two rectangular openings at each end of the chassis. A pneumatic cylinder is located in each of these openings to maintain a piece between the cylinder and one side of the opening at each end of the frame. This last side of the opening is drilled to allow to pass a pneumatic hammer that hammers the room. The two cylinders are mounted in opposition to each other. A disadvantage of this stripping device is that it is bulky. As a result, its location on an industrial site leads to severe space constraints. Another disadvantage of this device is that it is heavy, so with large engines, which leads to a significant manufacturing cost and a significant consumption of energy. In addition, this results in an amplitude of relatively small movement, so a high nucleus disintegration time. A third disadvantage of this device is that the access is made by two places located opposite one another, which is impractical for loading parts. In addition, the start-up of the device can only begin once two pieces are loaded and tightened, each in one of the openings of the frame, which makes the waiting time between two cycles long enough.

La présente invention a pour but de pallier certains inconvénients de l'art antérieur en proposant un système automatisé de débourrage, caractérisé en ce qu'il comprend une pluralité de dispositifs de débourrage, chaque dispositif de débourrage étant constitué d'un châssis en forme de fourche à deux branches, l'espace compris entre les deux branches de la fourche étant destiné à accueillir une pièce à débourrer, et chaque dispositif de débourrage étant enfermé dans une enceinte à une seule porte de chargement de la pièce, et en ce que la pluralité de dispositifs de débourrage est disposée dans un rayon d'action d'un robot de chargement prévu pour charger la pièce à débourrer, par une seule face du dispositif de débourrage, dans l'espace du dispositif de débourrage prévu à cet effet.The object of the present invention is to overcome certain disadvantages of the prior art by proposing an automated unclogging system, characterized in that it comprises a plurality of unclogging devices, each unclogging device consisting of a frame in the form of fork with two branches, the space between the two branches of the fork being intended to accommodate a workpiece, and each stripping device being enclosed in an enclosure with a single loading door of the workpiece, and in that the a plurality of stripping devices is disposed within a radius of action of a loading robot provided for loading the piece to be unpacked, by a single face of the stripping device, in the space of the stripping device provided for this purpose.

Un autre but de l'invention est de proposer un dispositif de débourrage du système de débourrage, caractérisé en ce que le châssis est muni d'un unique espace permettant d'accueillir une pièce à débourrer, cet espace étant situé à une des extrémités du châssis, en ce que le châssis est supporté par quatre suspensions élastiques d'axe sensiblement vertical et déformables transversalement, chaque suspension étant solidaire d'un socle, en ce que le châssis est entraîné en vibration par deux moteurs à balourd d'axe sensiblement vertical, fixés chacun d'un côté du châssis, à proximité de deux des suspensions élastiques, et en ce qu'un dispositif de serrage de la pièce à débourrer est monté sur l'une des branches du châssis, ledit dispositif de serrage étant constitué d'un vérin sur lequel est montée une plaque de serrage, permettant de serrer la pièce à débourrer entre la plaque et la surface intérieure de l'autre branche, les deux autres suspensions élastiques étant disposées de façon à ce que le centre de gravité du dispositif de débourrage chargé reste entre les points de fixation des quatre suspensions, pour que celles-ci supportent sensiblement la même masse.Another object of the invention is to provide a device for unclogging the unclogging system, characterized in that the frame is provided with a single space to accommodate a room to break, this space being located at one end of the chassis, in that the chassis is supported by four elastic suspensions of substantially vertical axis and deformable transversely, each suspension being secured to a base, in that the chassis is driven in vibration by two unbalanced motors of substantially vertical axis , each attached to one side of the frame, close to two of the elastic suspensions, and in that a clamping device of the workpiece is mounted on one of the legs of the frame, said clamping device consisting of 'a jack on which is mounted a clamping plate, to tighten the piece to break between the plate and the inner surface of the other branch, the other two suspensi are arranged in such a way that the center of gravity of the charged loading device remains between the fixing points of the four suspensions, so that they support substantially the same mass.

Selon une autre particularité, le châssis est sensiblement horizontal, les deux autres suspensions élastiques étant disposées à proximité de l'espace compris entre les deux branches du châssis, et les moteurs tournent dans le même sens, entraînant une rotation du châssis autour de l'axe situé à l'intersection entre le plan moyen des moteurs et le plan transversal au châssis.According to another feature, the frame is substantially horizontal, the two other elastic suspensions being disposed near the space between the two branches of the frame, and the motors rotate in the same direction, causing a rotation of the frame around the axis located at the intersection between the average plane of the motors and the plane transverse to the frame.

Selon une autre particularité, une ouverture est formée sur la branche du châssis ne portant pas le vérin, cette ouverture accueillant l'extrémité d'au moins un marteau pneumatique, fixé sur au moins un montant solidaire du socle, qui permet de marteler la pièce à débourrer lorsque cette dernière est serrée dans le châssis, de façon à désagréger les noyaux de coulée.According to another feature, an opening is formed on the arm of the frame not carrying the jack, this opening accommodating the end of at least one pneumatic hammer, fixed on at least one integral amount of the base, which allows to hammer the piece to disrupt when the latter is tightened in the frame, so as to disintegrate the casting cores.

Selon une autre particularité, l'espace compris entre les branches du châssis comporte un fond muni d'une ouverture, pour faciliter, à la fois, le serrage de la pièce à débourrer, et l'évacuation du sable hors du châssis.According to another feature, the space between the legs of the frame has a bottom provided with an opening, to facilitate both the clamping of the workpiece to be unraveled, and the evacuation of the sand out of the frame.

Selon une autre particularité, le dispositif de débourrage comprend deux paires de ressorts latéraux, d'axe sensiblement horizontal, solidaires à la fois du châssis et d'un montant fixé au socle, permettant l'entrée en résonance du châssis.According to another feature, the stripping device comprises two pairs of lateral springs, of substantially horizontal axis, integral with both the frame and an amount fixed to the base, allowing the resonance of the chassis.

Selon une autre particularité, le châssis est constitué d'un corps et d'une tête, la tête comprenant les deux branches du châssis et étant solidaire d'une tige traversant le corps du châssis, et entraînée en rotation autour de l'axe du châssis grâce à un moteur.According to another feature, the frame consists of a body and a head, the head comprising the two branches of the frame and being secured to a rod passing through the body of the frame, and driven in rotation about the axis of the frame. chassis thanks to an engine.

Selon une autre particularité, le châssis est sensiblement vertical et les moteurs tournent dans le sens opposé, entraînant un mouvement alternatif en translation du châssis selon l'axe situé à l'intersection du plan moyen du châssis et du plan transversal aux moteurs passant par le centre des moteurs.According to another feature, the chassis is substantially vertical and the engines rotate in the opposite direction, causing reciprocating movement of the chassis in translation along the axis located at the intersection of the average plane of the chassis and the transverse plane to the engines passing through the center of engines.

Selon une autre particularité, le dispositif de débourrage comprend au moins une paire de marteaux pneumatiques, fixée sur au moins un montant solidaire du socle, qui permet de marteler la pièce à débourrer de chaque côté du châssis lorsque cette dernière est serrée dans l'espace compris entre les deux branches du châssis, de façon à désagréger les noyaux de coulée.According to another feature, the stripping device comprises at least one pair of pneumatic hammers, fixed on at least one integral amount of the base, which allows to hammer the piece to break each side of the frame when the latter is clamped in the space between the two legs of the frame, so as to disintegrate the casting cores.

Selon une autre particularité, la plaque de serrage est équipée d'un système de soufflage pour favoriser l'évacuation du sable hors de la pièce à débourrer.According to another feature, the clamping plate is equipped with a blowing system to promote the evacuation of the sand out of the room to break.

D'autres particularités et avantages de la présente invention apparaîtront plus clairement à la lecture de la description ci-après, faite en référence aux dessins annexés, dans lesquels :

  • la figure 1 représente un dispositif de débourrage horizontal selon un premier mode de réalisation,
  • la figure 2 représente un dispositif de débourrage horizontal à ressorts latéraux selon un deuxième mode de réalisation,
  • la figure 3 représente un dispositif de débourrage horizontal rotatif selon un troisième mode de réalisation,
  • la figure 4 représente un dispositif de débourrage vertical selon un quatrième mode de réalisation
  • la figure 5 représente un système de débourrage à plusieurs dispositifs de débourrage.
Other features and advantages of the present invention will appear more clearly on reading the description below, made with reference to the accompanying drawings, in which:
  • the figure 1 represents a horizontal stripping device according to a first embodiment,
  • the figure 2 represents a lateral sprinkling device with lateral springs according to a second embodiment,
  • the figure 3 represents a rotary horizontal unstacking device according to a third embodiment,
  • the figure 4 represents a vertical deburring device according to a fourth embodiment
  • the figure 5 represents a deburring system with several cleaning devices.

Le dispositif de débourrage, selon le mode de réalisation de la figure 1, comprend un châssis (1) en forme de fourche à deux branches (11, 12), sensiblement horizontal. Le châssis (1) est supporté par quatre suspensions (2) élastiques d'axe sensiblement vertical, pouvant se déformer transversalement, et réparties sur un socle (3) de façon à supporter chacune sensiblement la même masse. Le dispositif de débourrage comprend également deux moteurs à balourd (4) fixés au châssis, chacun d'un côté, à l'arrière de la fourche. L'espace (13) compris entre les deux branches (11, 12) du châssis (1) permet d'accueillir la pièce à débourrer. Elle est maintenue entre la paroi intérieure d'une des branches (12) et une plaque (non représentée sur la figure 1, mais référencée 6 sur les figures 3 et 4) sensiblement verticale, rendue solidaire, à l'aide de picots (50), d'un vérin (5), par exemple pneumatique, monté dans la paroi intérieure de l'autre branche (11). Ladite plaque comporte, dans une variante de réalisation non représentée, des dispositifs de soufflage pour favoriser l'évacuation du sable hors de la pièce à débourrer. L'espace (13) compris entre les branches (11, 12) du châssis (1) comporte un fond muni d'une ouverture (135), ce qui permet de faciliter, à la fois, la mise en place de la pièce à débourrer, et l'évacuation du sable hors du châssis (1). La paroi de la branche (12) ne portant pas le vérin (5) est munie d'une ouverture (125) par laquelle passe l'extrémité d'au moins un marteau pneumatique (7), sensiblement horizontal, monté sur un montant (8) fixé sur le socle (3). Dans le cas où le dispositif comprend plusieurs marteaux (7), ces derniers sont disposés l'un au-dessus de l'autre, perpendiculairement au plan moyen du châssis (1).The débourrage device, according to the embodiment of the figure 1 , comprises a frame (1) fork-shaped with two branches (11, 12), substantially horizontal. The frame (1) is supported by four elastic suspensions (2) of substantially vertical axis, which can be deformed transversely, and distributed on a base (3) so as to support each substantially the same mass. The unstacking device also comprises two unbalance motors (4) fixed to the frame, each on one side, at the rear of the fork. The space (13) between the two legs (11, 12) of the frame (1) allows to accommodate the room to break. It is held between the inner wall of one of the branches (12) and a plate (not shown on the figure 1 , but referenced 6 on the figures 3 and 4 ) substantially vertical, secured by means of pins (50), a cylinder (5), for example pneumatic, mounted in the inner wall of the other branch (11). Said plate comprises, in an alternative embodiment not shown, blowing devices to promote the evacuation of sand out of the room to break. The space (13) between the legs (11, 12) of the frame (1) comprises a bottom provided with an opening (135), which facilitates both the installation of the piece to break up and remove the sand from the frame (1). The wall of the branch (12) not carrying the jack (5) is provided with an opening (125) through which the end of at least one substantially horizontal pneumatic hammer (7) mounted on a post ( 8) fixed on the base (3). In the case where the device comprises several hammers (7), the latter are arranged one above the other, perpendicular to the average plane of the frame (1).

Les moteurs à balourd (4) du dispositif de débourrage selon le mode de réalisation de la figure 1 tournent dans le même sens, lorsque le dispositif est en fonctionnement. Le mouvement résultant du châssis (1) entraîne alors une rotation de la pièce autour de l'axe vertical (z-z) situé à l'intersection du plan (y-z) passant par la paire de moteurs (4) et du plan vertical (x-z) transversal au châssis (1). Soumise à ce mouvement, la pièce est alors, alternativement, en contact avec les marteaux (7), et pas en contact avec les marteaux, ce qui permet un martelage de la pièce par les marteaux (7). Dans une variante de réalisation, le martelage est effectué avant la mise en marche des moteurs.The unbalance motors (4) of the unclogging device according to the embodiment of the figure 1 turn in the same direction, when the device is in operation. The resulting movement of the frame (1) then causes a rotation of the piece about the vertical axis (zz) located at the intersection of the plane (yz) passing through the pair of motors (4) and the vertical plane (xz) transverse to the frame (1). Subject to this movement, the part is then, in turn, in contact with the hammers (7), and not in contact with the hammers, which allows hammering of the piece by the hammers (7). In an alternative embodiment, the hammering is performed before starting the engines.

Le mode de réalisation de la figure 2 est le même que celui de la figure 1, avec en plus quatre ressorts (9) latéraux, d'axe sensiblement horizontal, qui sont fixés par paire de chaque côté du châssis (1), transversalement à celui-ci. Une de leurs extrémités est fixée aux branches (11, 12) du châssis (1), et leur autre extrémité à un montant (10) fixé sur le socle (3). Les marteaux (7) pneumatiques de martelage, ainsi que la plaque (6) qui se pose à l'extrémité du vérin (5), bien que non représentés sur la figure 2, font partie du dispositif de débourrage selon ce mode de réalisation. La présence des ressorts (9) modifie la fréquence propre de résonance du châssis (1) pour l'amener à la valeur de la fréquence de vibration des moteurs (4). De cette manière, la fréquence de vibration du châssis est augmentée, par exemple d'un facteur 10, ce qui permet, avec un faible effort d'excitation, d'obtenir une valeur d'amplitude acceptable pour le débourrage. La présence de ces ressorts (9) permet donc de réduire considérablement la puissance, la taille et le poids des moteurs (4) à balourd. Ceux-ci n'ont en effet plus à fournir l'effort nécessaire à la vibration, mais uniquement à exciter le dispositif à sa fréquence de résonance. Un variateur de vitesse permet d'ajuster la fréquence d'excitation à la fréquence exacte du châssis (1).The embodiment of the figure 2 is the same as that of the figure 1 , in addition to four springs (9) side, substantially horizontal axis, which are fixed in pairs on each side of the frame (1), transversely thereto. One of their ends is fixed to the legs (11, 12) of the frame (1), and their other end to a post (10) fixed on the base (3). Hammers (7) pneumatic hammering, and the plate (6) which arises at the end of the jack (5), although not shown on the figure 2 are part of the deburring device according to this embodiment. The presence of the springs (9) modifies the resonance natural frequency of the frame (1) to bring it to the value of the vibration frequency of the motors (4). In this way, the vibration frequency of the chassis is increased, for example by a factor of 10, which makes it possible, with a low excitation effort, to obtain an acceptable amplitude value for unclogging. The presence of these springs (9) can significantly reduce the power, size and weight of the motors (4) imbalance. They no longer have to provide the effort required for the vibration, but only to excite the device at its resonant frequency. A frequency converter is used to adjust the excitation frequency to the exact frequency of the chassis (1).

Dans le mode de réalisation de la figure 3, le châssis (1), en forme de fourche sensiblement horizontale, est en deux parties : le corps (14), d'une part, et la tête (15), d'autre part. La tête (15) du châssis, constituée des deux branches (11, 12) de la fourche, est solidaire d'une tige (16) traversant le corps (14) du châssis (1), et parallèle à l'axe (x-x) du châssis (1). Cette tige (16), guidée par un guide (17) à l'intérieur du corps (14) du châssis (1), peut tourner autour de l'axe (x-x) du châssis (1) grâce à un moteur (18), auquel elle est reliée, qui est fixé sur le socle (3). Le corps (14) est supporté par les quatre mêmes suspensions (2) élastiques que dans le mode de réalisation de la figure 1, réparties de façon à supporter chacune sensiblement la même masse. Le corps (14) vibre autour de l'axe vertical (z-z) grâce à deux moteurs (4) à balourd tournant dans le même sens, d'axe sensiblement vertical, et fixés au corps (14) du châssis (1), chacun d'un côté du châssis (1). La tête (15) du châssis (1) comporte, comme dans le mode de réalisation de la figure 1, un vérin (5), par exemple pneumatique, sur lequel se pose une plaque (6) pour maintenir la pièce à débourrer dans l'espace (13) compris entre les deux branches (11, 12). Le dispositif de débourrage comporte également au moins un marteau pneumatique pour le martelage, non représenté. Dans le mode de réalisation de ce dispositif, le martelage est effectué avant la mise en route des moteurs. Ce mode de réalisation permet également un excellent vidage du sable puisque la pièce peut être tournée sur 360°.In the embodiment of the figure 3 , the frame (1) substantially fork-shaped fork is in two parts: the body (14), on the one hand, and the head (15), on the other. The head (15) of the frame, consisting of the two branches (11, 12) of the fork, is integral with a rod (16) passing through the body (14) of the frame (1), and parallel to the axis (xx). ) of the frame (1). This rod (16), guided by a guide (17) inside the body (14) of the frame (1), can rotate around the axis (xx) of the frame (1) by means of a motor (18) to which it is connected, which is fixed on the base (3). The body (14) is supported by the same four elastic suspensions (2) as in the embodiment of the figure 1 , distributed so as to support each substantially the same mass. The body (14) vibrates around the vertical axis (zz) by means of two counterbalanced motors (4) rotating in the same direction, of substantially vertical axis, and fixed to the body (14) of the frame (1), each on one side of the frame (1). The head (15) of the frame (1) comprises, as in the embodiment of the figure 1 , a cylinder (5), for example pneumatic, on which a plate (6) is placed to maintain the workpiece to be unraveled in the space (13) between the two branches (11, 12). The stripping device also comprises at least one pneumatic hammer for hammering, not shown. In the embodiment of this device, the hammering is performed before the start of the engines. This embodiment also allows excellent emptying of the sand since the part can be rotated 360 °.

Dans le mode de réalisation de la figure 4, le châssis (1) est sensiblement vertical. Comme dans le mode de réalisation de la figure 1, il est supporté par quatre suspensions (2) élastiques, d'axe vertical, fixées sur un socle (3), ces suspensions pouvant se déformer transversalement de façon élastique. De même que dans les autres modes de réalisation, elles sont réparties de façon à supporter chacune sensiblement la même masse. Deux moteurs (4) à balourd tournant en sens opposé sont fixés au châssis, chacun d'un côté d'une des branches (11). La pièce à débourrer est à serrer dans l'espace (13) compris entre les deux branches (11, 12) du châssis (1), à l'aide d'un vérin (5) par exemple pneumatique, sur lequel est posée une plaque (6), et qui est monté dans la paroi intérieure de l'une des branches (11). Le mouvement résultant du châssis (1) entraîne alors un mouvement alternatif en translation de la pièce selon l'axe horizontal (x-x) situé à l'intersection du plan (x-z) moyen du châssis (1) et du plan (x-y) transversal aux moteurs (4) passant par le centre des moteurs.In the embodiment of the figure 4 , the frame (1) is substantially vertical. As in the embodiment of the figure 1 , he is supported by four suspensions (2) elastic, vertical axis, fixed on a base (3), these suspensions can deform elastically transversely. As in the other embodiments, they are distributed so as to support each substantially the same mass. Two counter-rotating unbalance motors (4) are attached to the frame, each on one side of one of the branches (11). The part to be disrupted is to be clamped in the space (13) between the two legs (11, 12) of the frame (1), with the aid of a jack (5) for example pneumatic, on which is placed a plate (6), and which is mounted in the inner wall of one of the branches (11). The resulting movement of the frame (1) then causes an alternating movement in translation of the part along the horizontal axis (xx) located at the intersection of the plane (xz) means of the frame (1) and the plane (xy) transverse to motors (4) passing through the center of the engines.

Dans ce mode de réalisation, le dispositif de débourrage comprend au moins deux marteaux (7) pneumatiques fixés par paire sur des montants fixés sur le socle (3). L'extrémité des marteaux (7) ne se trouve plus dans le châssis (1), comme dans le mode de réalisation de la figure 1, mais de chaque côté de la branche (12) opposée à celle sur laquelle est monté le vérin (5). Ainsi, le martelage est réalisé sur les parties de la pièce à débourrer qui dépassent de chaque côté du châssis (1). Ce mode de réalisation est donc particulièrement bien adapté pour débourrer des pièces de grandes dimensions. Dans une variante de réalisation, le martelage est effectué avant la mise en marche des moteurs.In this embodiment, the stripping device comprises at least two pneumatic hammers (7) fixed in pairs on uprights fixed on the base (3). The end of the hammers (7) is no longer in the frame (1), as in the embodiment of the figure 1 but on each side of the arm (12) opposite to that on which the jack (5) is mounted. Thus, the hammering is performed on the parts of the workpiece that protrude from each side of the frame (1). This embodiment is therefore particularly well suited to break large parts. In an alternative embodiment, the hammering is performed before starting the engines.

Dans tous les modes de réalisation décrits ci-dessus, le dispositif de débourrage est enfermé dans une enceinte insonorisée (19) comportant un accès (20) obturable automatiquement ou manuellement, permettant de charger et de serrer une pièce à débourrer dans le dispositif de débourrage. Le chargement et le déchargement peuvent se faire manuellement ou à l'aide d'un robot (21).In all the embodiments described above, the stripping device is enclosed in a soundproof enclosure (19) having an access (20) automatically or manually closable, for loading and clamping a workpiece in the débourrer device . Loading and unloading can be done manually or using a robot (21).

Dans le cas où l'accès de l'enceinte au dispositif de débourrage est obturable automatiquement, et où le chargement et le déchargement sont robotisés, plusieurs dispositifs de débourrage peuvent être utilisés simultanément pour débourrer plusieurs pièces en même temps, comme cela est représenté sur la figure 5. Pour cette utilisation, les dispositifs de débourrage sont disposés, soit parallèlement les uns aux autres suivant une droite, les accès étant tous situés du même côté de la droite, soit sur un arc de cercle, les accès étant alors tous orientés vers le centre de cet arc de cercle. La variante en arc de cercle permet toutefois de passer plus rapidement d'un dispositif de débourrage à un autre, donc d'augmenter le rendement de débourrage.In the case where the access of the enclosure to the unclogging device is automatically closed, and where the loading and unloading are robotized, several deburring devices can be used simultaneously to break up several pieces at the same time, as shown on the figure 5 . For this use, the stripping devices are arranged either parallel to each other along a line, the access being all located on the same side of the line, or on a circular arc, the access then being all oriented towards the center of this arc of a circle. The variant in an arc allows however to pass more quickly from one stripping device to another, so to increase the stripping performance.

Un tel procédé robotisé permet d'utiliser simultanément différents dispositifs de débourrage selon les modes de réalisation des figures 1, 2, 3 et 4, ou encore tout autre type de dispositif. Si le dispositif de débourrage selon le mode de réalisation de la figure 3 est utilisé dans le cadre d'un procédé robotisé de ce type, il est nécessaire que la tête (15) du châssis (1) soit en position horizontale lorsque le cycle de débourrage se termine.Such a robotic process makes it possible to simultaneously use different stripping devices according to the embodiments of the invention. figures 1 , 2 , 3 and 4 , or any other type of device. If the stripping device according to the embodiment of the figure 3 is used in the context of a robotic process of this type, it is necessary that the head (15) of the frame (1) is in a horizontal position when the stripping cycle ends.

Dans le cas d'un procédé robotisé permettant d'utiliser plusieurs dispositifs en même temps, le déchargement, le chargement et le débourrage peuvent se faire en décalé sur lesdits dispositifs.In the case of a robotic process for using multiple devices at the same time, the unloading, loading and unclogging can be offset on said devices.

Dans l'ensemble des modes de réalisation cités ci-dessus, le châssis (1) est constitué de deux plaques parallèles reliées par des traverses. Par ailleurs, les moteurs (4) à balourd ne tournent pas forcément en phase au démarrage, mais se mettent en phase environ en un demi-tour.In all the embodiments mentioned above, the frame (1) consists of two parallel plates connected by cross members. On the other hand, the unbalanced motors (4) do not necessarily turn in phase at start-up, but phase in about half a turn.

Il doit être évident, pour les personnes versées dans l'art, que la présente invention permet des modes de réalisation sous de nombreuses autres formes spécifiques sans l'éloigner du domaine d'application de l'invention comme revendiqué. Par conséquent, les présents modes de réalisation doivent être considérés à titre d'illustration, mais peuvent être modifiés dans le domaine défini par la portée des revendications jointes, et l'invention ne doit pas être limitée aux détails donnés ci-dessus.It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration, but may be modified within the scope defined by the scope of the appended claims, and the invention should not be limited to the details given above.

Ainsi, d'autres modes de réalisation combinant deux ou plusieurs modes de réalisation décrits ci-dessus peuvent être envisagés.Thus, other embodiments combining two or more embodiments described above can be envisaged.

Claims (10)

  1. Automated decoring system, characterised in that it comprises a plurality of decoring devices, each decoring device comprising a frame (1) in the form of a fork having two prongs (11, 12), the space (13) between the two prongs (11, 12) of the fork being intended to receive a part to be decored, each decoring device being enclosed in a chamber (19) having only one door for loading the part, and in that the plurality of decoring devices are disposed in an operating range of a loading robot provided for loading the part to be decored through a single face of the decoring device into the space (13) of the decoring device provided for this purpose.
  2. Decoring device of the decoring system as claimed in Claim 11, characterised in that the frame (1) is provided with one single space (13) for receiving the part to be decored, this space (13) being located at one of the ends of the frame (1), in that the frame (1) is supported by four resilient suspension means (2) which have a substantially vertical axis and are transversely deformable, each suspension means (2) being joined to a base (3), in that the frame (1) is driven in vibration by two unbalanced motors (4) with a substantially vertical axis, each fixed on one side of the frame (1) in the vicinity of two of the resilient suspension means (2), and in that a device for clamping the part to be decored is mounted on one (11) of the prongs (11, 12) of the frame (1), the said clamping device being formed by a jack (5) on which is mounted a clamping plate (6) enabling the part to be decored to be clamped between the plate (6) and the inner surface of the other prong (12), the other two resilient suspension means (2) being disposed in such a way that the centre of gravity of the loaded decoring device remains between the fixing points of the four suspension means (2) so that they substantially support the same mass.
  3. Decoring device as claimed in Claim 2, characterised in that the frame (1) is substantially horizontal, the other two resilient suspension means (2) being disposed in the vicinity of the space (13) between the two prongs (11, 12) of the frame (1), and in that the motors (4) revolve in the same direction, resulting in rotation of the frame (1) about the axis (z-z) located at the intersection between the mid-plane (y-z) of the motors and the transverse plane of the frame (1).
  4. Decoring device as claimed in Claim 13, characterised in that an opening (125) is formed on the prong (12) of the frame (1) which does not bear the jack (5), this opening (125) receiving the end of at least one pneumatic hammer (7) which is fixed on at least one upright (8) joined to the base (3) and enables the part to be decored to be hammered when the part is clamped in the frame (1) in such a way as to disintegrate the casting cores.
  5. Decoring device as claimed in Claim 3 or 4, characterised in that the space (13) between the prongs (11, 12) of the frame (1) has a bottom provided with an opening (135) to facilitate both clamping of the part to be decored and evacuation of sand from the frame (1).
  6. Decoring device as claimed in any one of Claims 3 to 5, characterised in that it comprises two pairs of lateral springs (9) with a substantially horizontal axis which are joined both to the frame (1) and to an upright (10) fixed on the base (3), enabling entry into resonance of the frame.
  7. Decoring device as claimed in Claim 13, characterised in that the frame (1) is composed of a body (14) and a head (15), the head (15) comprising the two prongs (11, 12) of the frame and being joined to a rod (16) passing through the body (14) of the frame (1) and driven in rotation about the axis (x-x) of the frame (1) by way of a motor (18).
  8. Decoring device as claimed in Claim 2, characterised in that the frame (1) is substantially vertical and in that the motors (4) turn in opposite directions, resulting in alternating translational movements of the frame (1) along the axis (x-x) located at the intersection of the mid-plane (x-z) of the frame (1) and the transverse plane of the motors (4) passing through the centre of the motors.
  9. Decoring device as claimed in Claim 8, characterised in that it comprises at least one pair of pneumatic hammers (7) fixed on at least one upright (8) joined to the base, enabling hammering of the part to be decored on either side of the frame when the part is clamped in the space (13) between the two prongs (11, 12) of the frame (1) in such a way as to disintegrate the casting cores.
  10. Decoring device as claimed in any one of Claims 2 to 9, characterised in that the clamping plate (6) is equipped with a blowing system to aid evacuation of the sand from the part to be decored.
EP04704633A 2003-01-23 2004-01-23 Automated decoring system and decoring device Expired - Lifetime EP1594642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202004021503U DE202004021503U1 (en) 2003-01-23 2004-01-23 Automated coring system and coring device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0300729A FR2850305B1 (en) 2003-01-23 2003-01-23 AUTOMATED DELIVERY SYSTEM AND UNLOADING DEVICE
FR0300729 2003-01-23
PCT/FR2004/000149 WO2004067209A1 (en) 2003-01-23 2004-01-23 Automated decoring system and decoring device

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EP1594642A1 EP1594642A1 (en) 2005-11-16
EP1594642B1 true EP1594642B1 (en) 2009-03-25

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EP04704633A Expired - Lifetime EP1594642B1 (en) 2003-01-23 2004-01-23 Automated decoring system and decoring device

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US (1) US20060272792A1 (en)
EP (1) EP1594642B1 (en)
JP (1) JP2006515806A (en)
CN (1) CN100349676C (en)
AT (1) ATE426475T1 (en)
BR (1) BRPI0406881A (en)
CA (1) CA2513693C (en)
DE (2) DE202004021503U1 (en)
FR (1) FR2850305B1 (en)
MX (1) MXPA05007667A (en)
WO (1) WO2004067209A1 (en)

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FR2907039B1 (en) * 2006-10-16 2008-12-26 Disa Serf DEVICE FOR DISPENSING FOUNDRY PARTS INCLUDING A BEAM.
FR2914572A1 (en) * 2007-04-05 2008-10-10 Massin Technologies Soc Par Ac UNPACKING DEVICE AND AUTOMATED DISPENSING SYSTEM COMPRISING SAME
US8186419B2 (en) 2008-07-08 2012-05-29 GM Global Technology Operations LLC Method and system for internal cleaning of complex castings
ITTO20090437A1 (en) * 2009-06-09 2010-12-10 Artimpianti S N C Di Genre Walter E Botta Alberto MACHINE MACHINE
JP5772488B2 (en) * 2011-10-19 2015-09-02 日産自動車株式会社 Core sand removal method
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US9920752B2 (en) * 2012-11-14 2018-03-20 Koninklijke Philips N.V. Fluid pump
SI24307A (en) 2013-03-29 2014-09-30 Rc Simit D.O.O. Boring of sand cores from castings
WO2017195355A1 (en) * 2016-05-13 2017-11-16 株式会社滋賀山下 Vibrating sand shaking-out apparatus and automobile component
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FR2850305B1 (en) 2005-03-18
MXPA05007667A (en) 2006-05-25
FR2850305A1 (en) 2004-07-30
JP2006515806A (en) 2006-06-08
BRPI0406881A (en) 2006-01-03
CA2513693A1 (en) 2004-08-12
CA2513693C (en) 2008-12-30
DE602004020190D1 (en) 2009-05-07
CN100349676C (en) 2007-11-21
WO2004067209A1 (en) 2004-08-12
EP1594642A1 (en) 2005-11-16
DE202004021503U1 (en) 2008-08-07
US20060272792A1 (en) 2006-12-07
ATE426475T1 (en) 2009-04-15
CN1750897A (en) 2006-03-22

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