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FR2695452A1 - Articulated feed pipe for lubricating parts being machined - includes jointed segments fitted with precision adjustment bracket,this saddle having adjusting screw enabling fine control of orientation of jet - Google Patents

Articulated feed pipe for lubricating parts being machined - includes jointed segments fitted with precision adjustment bracket,this saddle having adjusting screw enabling fine control of orientation of jet Download PDF

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Publication number
FR2695452A1
FR2695452A1 FR9210563A FR9210563A FR2695452A1 FR 2695452 A1 FR2695452 A1 FR 2695452A1 FR 9210563 A FR9210563 A FR 9210563A FR 9210563 A FR9210563 A FR 9210563A FR 2695452 A1 FR2695452 A1 FR 2695452A1
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France
Prior art keywords
conduit
segments
orientation
conduit according
segment
Prior art date
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Pending
Application number
FR9210563A
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French (fr)
Inventor
Carossino Andre
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Individual
Original Assignee
Individual
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Filing date
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Application filed by Individual filed Critical Individual
Priority to FR9210563A priority Critical patent/FR2695452A1/en
Publication of FR2695452A1 publication Critical patent/FR2695452A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/545—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/40—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by means of coilable or bendable legs or spiral shaped legs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/021—Locking means for rotational movement
    • F16M2200/022—Locking means for rotational movement by friction

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The articulated feed pipe is made up of a seri es of tubular segments (1) that can be force fitted together one after the other in succession to form a hollow modular body of a variable length. Each segment consists at one end of a male part (11) in the form of part of a sphere and at the other end a female part (14) in the form of a cavity in the form of part of a sphere. This tube is connected to a feed pump and at its free end is a nozzle (3) which jets the fluid onto the part being machined. A saddle (4) containing an adjusting screw (46) bridges three of the segments (1) which enables a fine control of orientation of the jet emanating from the nozzle (3). Use/Advantage - A lubricating feed pipe with nozzle which is manually articulated for directing a lubricant onto the part being machined that has a fine adjustment control which makes this adjustment of the pipe a safer operation.

Description

CONDUIT ARTICULE POUR L'ALIMENTATION EN LUBRIFIANT DE
PIECES A USINER.ARTICULATED CONDUIT FOR LUBRICANT SUPPLY OF
WORKPIECES.

L'invention concerne un conduit articulé pour l'alimentation en lubrifiant de pièces à usiner, constitué de segments tubulaires susceptibles d'être accouplés, à force, les uns à la succession des autres pour former un corps creux modulaire de longueur variable. The invention relates to an articulated duct for supplying lubricant to workpieces, consisting of tubular segments capable of being force-coupled, one after the other, to form a modular hollow body of variable length.

Les conduits de ce type sont bien connus sur les machines-outils ou les centres d'usinage et servent à déverser, au voisinage de l'outil, un jet de lubrifiant évitant ainsi son échauffement intempestif. Ducts of this type are well known on machine tools or machining centers and are used to pour, in the vicinity of the tool, a jet of lubricant thus avoiding its untimely heating.

Ces conduits présentent la particularité d'être constitués d'un corps creux, de longueur variable, formés de segments tubulaires comportant respectivement un embout mâle et un embout femelle, de forme complémentaire, afin de pouvoir être accouplés les uns aux autres pour former une chaîne dont chaque segment constitue un maillon articulé. Afin de permettre une orientation multidirectionnelle de ce conduit, la partie mâle de chaque segment est avantageusement constituée d'une portion de sphère et la partie femelle est formée d'un siège, également en portion de sphère, dont les dimensions sont complémentaires de celles de la partie mâle, de manière à constituer une articulation à rotule. Ainsi, le conduit peut être mû dans toutes les directions en un point quelconque de sa longueur simplement en agissant sur deux segments contigus.These conduits have the particularity of being made up of a hollow body, of variable length, formed of tubular segments respectively comprising a male end piece and a female end piece, of complementary shape, so that they can be coupled to each other to form a chain. each segment of which constitutes an articulated link. In order to allow multidirectional orientation of this conduit, the male part of each segment advantageously consists of a sphere portion and the female part is formed of a seat, also in sphere portion, the dimensions of which are complementary to those of the male part, so as to constitute a ball joint. Thus, the conduit can be moved in all directions at any point along its length simply by acting on two contiguous segments.

Le coefficient de frottement entre deux segments contigus du conduit est suffisamment élevé pour que celui-ci ne puisse pas fléchir ou se déformer de lui même, ledit conduit devant en effet rester orientable mais rigide et notamment être insensible aux vibrations. Les articulations entre segments sont uniquement destinées à permettre une orientation manuelle de tout ou partie du conduit pour diriger le jet de lubrifiant sur la partie de l'outil ou de la pièce à usiner la mieux appropriée. Après ce réglage, le conduit doit rester en place selon l'orientation qui lui a été donnée. The coefficient of friction between two contiguous segments of the duct is high enough so that the latter cannot bend or deform on its own, said duct having in fact to remain orientable but rigid and in particular to be insensitive to vibrations. The joints between segments are only intended to allow manual orientation of all or part of the conduit to direct the jet of lubricant on the part of the tool or the workpiece most suitable. After this adjustment, the duct must remain in place according to the orientation which has been given to it.

Or, on observe fréquemment que ce réglage manuel, par nature grossier, ne permet pas de diriger avec précision le jet de lubrifiant, ce qui amène l'opérateur à devoir, en cours d'usinage, tenter d'agir sur la partie du conduit la plus proche de l'outil pour affiner la position du jet. Cette opération est délicate et dangereuse et se fait par des tâtonnements successifs qui vont à l'encontre des règles de sécurité. En outre, elle est peu fiable car l'opérateur, craignant de s'exposer, contrarie plus qu'il ne l'ajuste l'orientation du jet, ce qui peut être préjudiciable à l'outil ou à la pièce en cours d'usinage. However, it is frequently observed that this manual adjustment, by its rough nature, does not make it possible to precisely direct the jet of lubricant, which leads the operator to have, during machining, to try to act on the part of the duct. closest to the tool to refine the position of the jet. This operation is delicate and dangerous and is done by successive trial and error which go against safety rules. In addition, it is unreliable because the operator, fearing to expose himself, annoys more than he adjusts the orientation of the jet, which can be detrimental to the tool or the part being machining.

L'invention a pour but de remédier à ces inconvénients et concerne un dispositif de réglage fin de l'orientation du jet du lubrifiant, conçu pour agir sur au moins deux segments contigus du conduit afin de permettre par un effet multiplicateur, de modifier cette orientation, et par suite, celle de la buse d'extrémité. The object of the invention is to remedy these drawbacks and relates to a device for fine adjustment of the orientation of the jet of lubricant, designed to act on at least two contiguous segments of the duct in order to allow, by a multiplier effect, to modify this orientation , and consequently, that of the end nozzle.

Selon un mode de réalisation préférentiel, ce dispositif est constitué d'un étrier en forme de U dont les ailes latérales sont découpées pour former des griffes ouvertes, l'âme de cet étrier comportant un trou taraudé pour recevoir une vis de réglage dont l'axe est situé à égale distance desdites griffes. According to a preferred embodiment, this device consists of a U-shaped stirrup whose lateral wings are cut to form open claws, the core of this stirrup having a tapped hole for receiving an adjustment screw, the axis is located equidistant from said claws.

Avantageusement, ce dispositif est amovible et peut être fixé en toutes positions relatives du conduit, l'ouverture des griffes étant au moins égale au plus faible diamètre des segments modulaires pour pouvoir être mobile en rotation à 3600 sur lesdits segments. Advantageously, this device is removable and can be fixed in any relative position of the duct, the opening of the claws being at least equal to the smallest diameter of the modular segments in order to be able to be rotatable at 3600 on said segments.

Selon une autre caractéristique préférentielle, la vis de réglage agit sur la zone de transition des parties mâle et femelle d'un segment tubulaire, en réaction aux deux autres segments contigus retenus par les griffes de l'étrier et situés de part et d'autre du segment intéressé par la vis. According to another preferred characteristic, the adjusting screw acts on the transition zone of the male and female parts of a tubular segment, in reaction to the two other contiguous segments retained by the claws of the stirrup and located on either side of the segment interested in the screw.

D'autres caractéristiques et avantages ressortiront de la description ci-après et des dessins annexés dans lesquels
- la figure 1 est une vue en perspective d'un conduit articulé, tel que connu dans le commerce, et formé de segments tubulaires accouplés les uns aux autres pour constituer un conducteur de lubrifiant de longueur déterminée,
- la figure 2 est une vue en perspective du dispositif de réglage de l'orientation du conduit articulé,
- la figure 3 est une vue schématique du dispositif de réglage fixé en un point de la longueur du conduit articulé.Other characteristics and advantages will emerge from the description below and the attached drawings in which
FIG. 1 is a perspective view of an articulated conduit, as known in the trade, and formed of tubular segments coupled to each other to form a lubricant conductor of determined length,
FIG. 2 is a perspective view of the device for adjusting the orientation of the articulated duct,
- Figure 3 is a schematic view of the adjustment device fixed at a point of the length of the articulated conduit.

Comme mentionné ci-dessus, le conduit articulé, tel que visible en figure 1, est constitué, de façon classique, d'une succession de segments tubulaires 1 emboîtés les uns dans les autres pour former un corps creux d'orientation réglable sur 3600.  As mentioned above, the articulated conduit, as visible in FIG. 1, is made up, in a conventional manner, of a succession of tubular segments 1 nested one inside the other to form a hollow body of adjustable orientation on 3600.

Chaque segment (figure 3) comprend à une extrémité une partie mâle 11 en saillie ayant la forme d'une portion sphérique, et à son autre extrémité, une partie femelle 12 formée d'une cavité ayant également la forme d'une portion de sphère, les parties mâles et femelles étant de dimensions et de formes complémentaires afin que les parties sphériques 11 des segments puissent venir se loger à force (par simple encliquetage) dans le siège correspondant 12 des parties femelles. Chaque segment comporte un conduit interne 13 permettant de réaliser, après accouplement d'une série de segments tubulaires, un corps creux permettant de véhiculer le lubrifiant depuis une pompe 2 à un segment 3 en forme de buse.Each segment (FIG. 3) comprises at one end a protruding male part 11 having the shape of a spherical portion, and at its other end, a female part 12 formed of a cavity also having the shape of a sphere portion , the male and female parts being of complementary dimensions and shapes so that the spherical parts 11 of the segments can be force-fitted (by simple snap-fastening) in the corresponding seat 12 of the female parts. Each segment has an internal conduit 13 making it possible, after coupling a series of tubular segments, to produce a hollow body making it possible to convey the lubricant from a pump 2 to a segment 3 in the form of a nozzle.

On peut accoupler un nombre variable de segments tubulaires 1 pour obtenir une longueur de conduit déterminée, et ledit conduit peut être orienté, en tout point de sa longueur, selon des directions multiples dues à l'articulation en forme de rotule obtenue par l'accouplement des parties mâles 11 et des parties femelles 12 de deux segments contigus. Les segments tubulaires 1 sont, de préférence, réalisés en matière synthétique inaltérable aux agents chimiques et peu sensible à la chaleur et leurs dimensions sont calibrées pour que le coefficient de frottement entre deux segments contigus soit élevé afin d'éviter le libre jeu d'un segment par rapport à son homologue contigu. A variable number of tubular segments 1 can be coupled to obtain a determined length of conduit, and said conduit can be oriented, at any point along its length, in multiple directions due to the ball-shaped joint obtained by the coupling male parts 11 and female parts 12 of two contiguous segments. The tubular segments 1 are preferably made of synthetic material unalterable to chemical agents and not very sensitive to heat and their dimensions are calibrated so that the coefficient of friction between two contiguous segments is high in order to avoid the free play of a segment relative to its contiguous counterpart.

En effet, l'orientation du conduit doit pouvoir se faire manuellement à la demande de l'opérateur mais cette orientation doit être maintenue stable durant l'opération d'usinage. Le coefficient de frottement entre les segments tubulaires évite ainsi que le simple poids du conduit modifie l'orientation du conduit. Indeed, the orientation of the conduit must be able to be done manually at the request of the operator but this orientation must be kept stable during the machining operation. The coefficient of friction between the tubular segments thus prevents the simple weight of the duct from modifying the orientation of the duct.

Si cette construction permet un réglage manuel de l'orientation du conduit, et par suite, du jet de lubrifiant, il reste aléatoire et n'autorise pas pour autant un réglage fin permettant de diriger avec précision le jet de lubrifiant sur la partie appropriée de l'outil ou de la pièce à usiner. C'est donc l'opérateur qui, en cours de travail est souvent amené, avec les risques dénoncés ci-dessus, à tenter, par tâtonnement, d'orienter le jet du lubrifiant au fur et à mesure de l'enlèvement des copeaux métalliques. If this construction allows manual adjustment of the orientation of the duct, and consequently of the lubricant jet, it remains random and does not allow a fine adjustment making it possible to precisely direct the lubricant jet on the appropriate part of the tool or workpiece. It is therefore the operator who, during work is often led, with the risks denounced above, to try, by trial and error, to direct the jet of lubricant as and when the removal of the metal shavings .

L'invention a pour but de mettre l'opérateur à l'abri de telles tentatives grâce à un dispositif de réglage simple, indépendant du conduit modulaire, et pouvant être fixé en toutes positions relatives dudit conduit pour en modifier, de façon précise, l'orientation sans le moindre risque. The object of the invention is to protect the operator from such attempts by means of a simple adjustment device, independent of the modular duct, and which can be fixed in any relative position of the said duct in order to modify it precisely. without risk.

Pour ce faire, le dispositif est constitué d'un étrier 4 (figure 2) ayant sensiblement la forme d'un étrier dont les deux ailes latérales 41 et 42 ont été découpées pour former des griffes cintrées 43, l'âme de l'étrier 44, réunissant les deux griffes, étant pourvue d'un orifice taraudé 45 destiné à recevoir une vis de réglage 46. Comme visible en figure 3, l'axe de l'orifice taraudé 45 est à égale distance des deux griffes 43 afin de définir une disposition triangulaire parfaitement symétrique, la pointe de la vis 46 étant opposée auxdites griffes. To do this, the device consists of a stirrup 4 (FIG. 2) having substantially the shape of a stirrup, the two lateral wings 41 and 42 of which have been cut to form curved claws 43, the core of the stirrup 44, joining the two claws, being provided with a tapped orifice 45 intended to receive an adjustment screw 46. As visible in FIG. 3, the axis of the tapped orifice 45 is equidistant from the two claws 43 in order to define a perfectly symmetrical triangular arrangement, the tip of the screw 46 being opposite to said claws.

Les griffes 43 comportent un siège semicirculaire 47 et sont ouvertes pour pouvoir venir s'accrocher en tout point relatif de la longueur du conduit modulaire. La distance "d" comprise entre l'extrémité des griffes 43 et l'âme 44 de l'étrier est au moins égale au diamètre le plus étroit des segments tubulaires 1 pour permettre d'adapter le dispositif de réglage sur ledit conduit. La forme semi-circulaire des sièges 47 des griffes autorise une rotation sur 3600 du dispositif de réglage, ce qui permet une orientation multidirectionnelle du conduit articulé. The claws 43 comprise a semicircular seat 47 and are open so that they can be hooked at any relative point of the length of the modular duct. The distance "d" between the end of the claws 43 and the core 44 of the stirrup is at least equal to the narrowest diameter of the tubular segments 1 to allow the adjustment device to be adapted on said conduit. The semi-circular shape of the seats 47 of the claws allows rotation on 3600 of the adjustment device, which allows multidirectional orientation of the articulated duct.

Comme visible en figure 3, la distance "D", comprise entre les deux griffes 43, est au moins égale à la longueur de la partie conique 14 de deux segments contigus pour pouvoir venir s'accrocher sur les zones de transition des parties mâles et femelles de deux segments S1, S2 situés de part et d'autre du segment S3 sur lequel agit la vis de réglage 46. L'extrémité de cette vis est arrondie pour venir épouser rigoureusement la zone de transition 15 de son segment approprié. La rotation de la vis 46, en l'espèce le vissage dans son trou taraudé 45, entraîne une pression sur la zone de transition 15 du segment S3 engendrant, par réaction, une poussée inverse des griffes 43 sur leur segment respectif S1, S2. Cette poussée se traduit par une rotation relative des parties mâles et femelles des segments tubulaires 1 sur lesquels agissent lesdites griffes. As can be seen in FIG. 3, the distance "D", comprised between the two claws 43, is at least equal to the length of the conical part 14 of two contiguous segments in order to be able to catch on the transition zones of the male parts and females of two segments S1, S2 located on either side of the segment S3 on which the adjustment screw 46 acts. The end of this screw is rounded so as to come to conform strictly to the transition zone 15 of its appropriate segment. The rotation of the screw 46, in this case the screwing in its tapped hole 45, causes a pressure on the transition zone 15 of the segment S3 generating, by reaction, a reverse thrust of the claws 43 on their respective segment S1, S2. This thrust results in a relative rotation of the male and female parts of the tubular segments 1 on which said claws act.

Le dispositif de réglage étant, de préférence, situé à l'opposé de la buse 3, et par conséquent en un site proche de la pompe 2, c'est en priorité la portion de conduit située en aval du dispositif qui aura tendance à s'incliner. Bien entendu, il s'agit d'un réglage fin mais, quelques tours de vis permettent, par un effet de démultiplication, de modifier de plusieurs millimètres l'orientation du conduit et par suite du jet de lubrifiant. The adjustment device being preferably located opposite the nozzle 3, and consequently at a site close to the pump 2, it is in priority the portion of conduit located downstream of the device which will tend to s 'tilt. Of course, this is a fine adjustment, but a few turns of the screw make it possible, by a reduction effect, to modify the orientation of the duct by several millimeters and consequently the jet of lubricant.

Comme indiqué précédemment, il est loisible de dévisser la vis de quelques filets et de faire pivoter angulairement le dispositif autour du conduit (sans avoir à le retirer), cette rotation étant autorisée par les griffes de retenue 43 et leur siège semi-circulaire 47. De la sorte, on peut modifier l'orientation du conduit en toute direction, et adapter ainsi, rapidement et sans danger, la position du jet de lubrifiant sur la pièce ou sur l'outil.  As indicated above, it is possible to unscrew the screw of a few threads and rotate the device angularly around the duct (without having to remove it), this rotation being authorized by the retaining claws 43 and their semi-circular seat 47. In this way, it is possible to modify the orientation of the duct in any direction, and thus adapt, quickly and without danger, the position of the jet of lubricant on the part or on the tool.

Claims (11)

REVENDICATIONS 1. Conduit articulé pour l'alimentation en lubrifiant de pièces à usiner du type constitué de segments tubulaires (1) susceptibles d'être accouplés, à force, les uns à la succession des autres pour former un corps creux modulaire de longueur variable, chaque segment comportant respectivement, à une extrémité, une partie mâle (11) en forme de portion sphérique, et à son autre extrémité (14) une partie femelle pourvue d'une cavité (12) ayant une forme complémentaire de celle de la partie mâle, ledit corps creux étant relié à une pompe et comportant, à son extrémité libre, un segment (3) en forme de buse pour diriger le jet de lubrifiant sur la pièce à usiner, 1. Articulated duct for supplying lubricant to workpieces of the type consisting of tubular segments (1) capable of being coupled, by force, one after the other to form a modular hollow body of variable length, each segment comprising respectively, at one end, a male part (11) in the form of a spherical portion, and at its other end (14) a female part provided with a cavity (12) having a shape complementary to that of the male part, said hollow body being connected to a pump and comprising, at its free end, a segment (3) in the form of a nozzle for directing the jet of lubricant onto the workpiece, conduit caractérisé en ce qu'il comporte un dispositif (4) de réglage fin de l'orientation du jet de la buse agissant sur au moins deux segments contigus. conduit characterized in that it comprises a device (4) for fine adjustment of the orientation of the jet of the nozzle acting on at least two contiguous segments. 2. Conduit selon la revendication 1, caractérisé en ce que le dispositif chevauche trois segments du conduit. 2. Conduit according to claim 1, characterized in that the device overlaps three segments of the conduit. 3. Conduit selon la revendication 1, caractérisé en ce que le dispositif de réglage (4) est amovible et est fixé en toute position relative sur ledit conduit. 3. Conduit according to claim 1, characterized in that the adjustment device (4) is removable and is fixed in any relative position on said conduit. 4. Conduit selon les revendications 1 à 3, caractérisé en ce qu'il est constitué d'un étrier en forme de U dont les ailes latérales (41) sont découpées pour former des griffes ouvertes (43), l'âme (44) de l'étrier comportant un trou taraudé (45) pour recevoir une vis de réglage (46) dont l'axe est situé à égale distance desdites griffes.  4. Conduit according to claims 1 to 3, characterized in that it consists of a U-shaped stirrup whose lateral wings (41) are cut to form open claws (43), the core (44) of the stirrup having a threaded hole (45) to receive an adjustment screw (46) whose axis is located equidistant from said claws. 5. Conduit selon l'une quelconque des revendications de 1 à 4, caractérisé en ce que l'ouverture (d) des griffes (43) est au moins égale au plus faible diamètre (15) des segments tubulaires (1). 5. Conduit according to any one of claims 1 to 4, characterized in that the opening (d) of the claws (43) is at least equal to the smallest diameter (15) of the tubular segments (1). 6. Conduit selon la revendication 4, caractérisé en ce que la distance comprise entre l'axe du trou taraudé (45) de l'étrier et chacune des deux griffes est sensiblement égale à la longueur de la partie mâle (14) d'un segment tubulaire. 6. Conduit according to claim 4, characterized in that the distance between the axis of the threaded hole (45) of the stirrup and each of the two claws is substantially equal to the length of the male part (14) of a tubular segment. 7. Conduit selon la revendication 1, caractérisé en ce que la vis de réglage (46) agit sur la zone de transition (15) des parties mâle et femelle d'un segment tubulaire (S3) en réaction aux deux autres segments (S1, S2) retenus par les griffes (43) de l'étrier et situés de part et d'autre de ce segment (S3). 7. Conduit according to claim 1, characterized in that the adjusting screw (46) acts on the transition zone (15) of the male and female parts of a tubular segment (S3) in reaction to the other two segments (S1, S2) retained by the claws (43) of the stirrup and located on either side of this segment (S3). 8. Conduit selon l'une quelconque des revendications de 1 à 7, caractérisé en ce que l'orientation de tout ou partie du conduit se fait dans un plan opposé à celui du déplacement de la vis par rotation relative des parties mâles et femelles des segments situés de part et d'autre de celui sur laquelle agit la vis. 8. Conduit according to any one of claims from 1 to 7, characterized in that the orientation of all or part of the conduit takes place in a plane opposite to that of the displacement of the screw by relative rotation of the male and female parts of the segments located on either side of the one on which the screw acts. 9. Conduit selon la revendication 1, caractérisé en ce que le dispositif est mobile en rotation à 3600 sur les segments tubulaires. 9. Conduit according to claim 1, characterized in that the device is movable in rotation at 3600 on the tubular segments. 10. Conduit selon la revendication 1, caractérisé en ce que la vis a un effet multiplicateur sur l'orientation de la longueur du conduit situé en aval du dispositif de réglage.  10. Conduit according to claim 1, characterized in that the screw has a multiplier effect on the orientation of the length of the conduit located downstream of the adjustment device. 11. Conduit selon l'une quelconque des revendications de 1 à 10, caractérisé en ce que l'extrémité de la vis de réglage est arrondie pour épouser la zone de transition (15), mâle et femelle d'un segment.  11. Conduit according to any one of claims from 1 to 10, characterized in that the end of the adjusting screw is rounded to match the transition zone (15), male and female of a segment.
FR9210563A 1992-09-04 1992-09-04 Articulated feed pipe for lubricating parts being machined - includes jointed segments fitted with precision adjustment bracket,this saddle having adjusting screw enabling fine control of orientation of jet Pending FR2695452A1 (en)

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