EP2041511A1 - Device forming sight-vane for three-dimensional measuring machine - Google Patents

Device forming sight-vane for three-dimensional measuring machine

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Publication number
EP2041511A1
EP2041511A1 EP07788877A EP07788877A EP2041511A1 EP 2041511 A1 EP2041511 A1 EP 2041511A1 EP 07788877 A EP07788877 A EP 07788877A EP 07788877 A EP07788877 A EP 07788877A EP 2041511 A1 EP2041511 A1 EP 2041511A1
Authority
EP
European Patent Office
Prior art keywords
cylindrical
tail
calibrated
bore
shank
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.)
Withdrawn
Application number
EP07788877A
Other languages
German (de)
French (fr)
Inventor
Michel Maugard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2041511A1 publication Critical patent/EP2041511A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/30—Bars, blocks, or strips in which the distance between a pair of faces is fixed, although it may be preadjustable, e.g. end measure, feeler strip

Definitions

  • the present invention relates to a device forming pinule for three-dimensional measuring machine, in particular in a procedure for aligning a tool, a part, or any set.
  • Such a device forming pinule is also designated, by those skilled in the art measuring devices, by “probing device”, “palpation device” or “touch probe”.
  • a device forming pinule comprising a calibrated sphere of palpation, a non-calibrated cylindrical intermediate portion integrally connected to the calibrated sphere and having a shoulder serving as a positioning stop. and a cylindrical shank of a calibrated defined diameter intended for the establishment of the pinule on the tooling, the workpiece, or the assembly to be measured by the measuring machine.
  • the sphere is axially assembled to the intermediate portion by gluing or brazing.
  • Such devices have a major disadvantage.
  • a positive machining error of the bore for receiving the pinule device renders the measurements made obsolete, because of the resulting clearance between the diameter of the bore made and the fixed diameter of the tail of the pinule device. .
  • a negative machining error does not allow the pinule device to be inserted and requires precise boring of the hole intended to receive the device.
  • a device according to the invention aims to overcome these disadvantages.
  • the invention aims to provide a pinule device that can allow the realization of precise measurements, including in case of bore hole error for receiving the device pinule.
  • the invention also aims to provide a pinule device that can adapt to different bore diameters while allowing precise measurements.
  • the invention relates to a device forming a pinch for a three-dimensional measuring machine, extending along a direction, referred to as the longitudinal direction, comprising: a calibrated cylindrical portion arranged at a longitudinal end of the device;
  • a cylindrical shank for assembling the pinion device with a piece to be measured arranged at a longitudinal end of the device opposite to said calibrated cylindrical portion, and adapted to be housed in a bore, called the receiving bore, of the piece to be measured;
  • a planar face referred to as a bearing surface, orthogonal to said longitudinal direction, and adapted to come into contact with said part to be measured once the cylindrical assembly shank housed in said receiving bore, characterized in that it comprises a central bore extending longitudinally from one side of the pinule device and having, at the level of said cylindrical shank, a conical portion,
  • each slot being traversed radially, opening into said conical portion of said central bore, and extending longitudinally along a portion of said cylindrical shank, so as to allow radial deformation of said cylindrical tail,
  • each slot in the cylindrical shank extends at least along a portion of the cylindrical shank. Nevertheless, advantageously and according to the invention, each slot extends integrally along the cylindrical shank.
  • said calibrated cylindrical portion comprises a flat face, referred to as a contact face, intended to come into contact with said measuring machine, parallel to said support face and remote from it by a predetermined value.
  • the measuring machine comprises a probe with a stylus. It is this stylet that comes into contact with the contact face of the calibrated cylindrical portion of a device according to the invention.
  • said central bore is at least partly threaded and ⁇ lâ expansion screw has at least one external thread conjugated to the thread of said central bore.
  • said expansion screw comprises a screw head having a recess adapted to receive a tool so that an operator can act on the screw by means of a screwing tool and ensure locking the pinule device in said receiving bore.
  • said cylindrical tail assembly has a chamfer at its free end so as to facilitate its housing in said receiving bore.
  • said calibrated cylindrical portion comprises a recess adapted to receive said screw head and having a counterbore bottom against which abuts said screw head once the maximum tolerable expansion of the assembly tail reached. This stop prevents the breaking of the tail if too much tightening.
  • said calibrated cylindrical portion and said cylindrical tail are concentric.
  • a device comprises at least two radially through slots, extending longitudinally along a portion of said cylindrical shank and opening into said conical portion of said central bore so as to allow radial deformation of said cylindrical shank.
  • a device according to the invention comprises:
  • the device comprises an integrally cylindrical body completely pierced from one side.
  • the first part is intended for palpation. It is performed on the calibrated cylinder of the same diameter as a calibrated sphere, and also on the upper part also calibrated relative to the bearing face.
  • the center of this first part is provided with a counterbore and a thread receiving the expansion screw of the pinule device.
  • the intermediate portion is not calibrated on its outside diameter. It comprises a shoulder used as a positioning support face.
  • the intermediate portion has a small thickness and is provided with radially through slots to allow expansion or removal, the interior allows free passage of the expansion screw.
  • the tail for positioning the pinule device is calibrated in the state, it is also provided with slots in the extension of the intermediate part for its expansion or removal, the inside is provided with a conical bore, its end is provided with bevel chamfer to facilitate entry in the case of a narrow receiving bore.
  • a screw with the same taper as the inside of the tail traversing freely the intermediate portion allows the expansion of the diameter of the tail when tightened by an operator, which eliminates the clearance between the defective bore and the nominal diameter of the tail.
  • the pinule device makes it possible to compensate for a boring error made on the tool to be measured in the positive as in the negative compared to a nominal dimension, since the tail, which allows the positioning of the device on the tooling to measure, is expandable and retractable in relation to its nominal diameter.
  • a countersink formed in the center of the upper part is intended to house the head of the screw and to serve as a locking thereof so that it does not hinder the palpation, and to limit the expansion of the diameter of the tail in order to prevent it breaking when clamped by an off-line operator, the screw head then coming into abutment against the bottom of the counterbore.
  • the device according to the invention can be made of special steel, combining hardness and elasticity after quenching and machining.
  • the invention further relates to a pinule device characterized in combination by all or some of the features mentioned above or below.
  • FIG. 1 is a diagrammatic sectional view of a pinule device according to one embodiment of the invention
  • FIG. 2 is a diagrammatic view along section A-A of the device of FIG.
  • the device comprises a fully cylindrical main body 1 formed integrally. None prevents according to other embodiments, to provide a cylindrical body formed of several separate parts and assembled to each other.
  • the body 1 cylindrical has a calibrated face, said face 2 of contact, a bearing face 3, parallel to the calibrated face, a calibrated cylinder 4, a counterbore 9 and a thread 8 adapted to receive a screw 10.
  • the body 1 is not threaded and the expansion screw, not threaded, is adapted to move in the central bore of the body 1 by a spring mechanism housed in the counterbore 9.
  • An intermediate portion and a cylindrical shank 6 comprise at least one radially extending through slot 7 extending longitudinally along said cylindrical shank so as to allow radial deformation of said cylindrical shank. These slots 7 allow the expansion - or the withdrawal of the diameter of the tail 6 relative to its nominal diameter.
  • This - intermediate part 5 is thin and provided with a shoulder forming the face 3 of positioning support.
  • the cylindrical tail 6 comprises three slots 7 separated from each other by 120 °. Nevertheless, nothing prevents to provide a different number of slots and a non-uniform distribution.
  • the tail 6 which serves to position the pinule device is calibrated on its outer diameter in the state, it has inside a cone 11, and at its end, a chamfer 13 beveled to facilitate the housing of the tail in the case of a narrow bore.
  • a screw 10 has at its end a cone 12 of the same conicity as the cone 11 of the inside of the tail 6, its thread is conjugated with the thread of the body 1, its head is housed inside the countersink 9 so not to interfere with the palpation, it passes freely through the intermediate part 5, its head abuts at the bottom of the counterbore, the maximum authorized expansion being obtained so as to avoid the rupture of the shank 6 when clamped by an operator hors montage.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The invention relates to a device forming a sight-vane for a three-dimensional measuring machine. It consists of a cylinder-shaped body (1), a thin part (5), and a tail (6). The part (5) and the tail (6) are provided with slots enabling the expansion or the withdrawal of the tail (6) in relation to the nominal diameter thereof. A contact face (2) is calibrated in relation to a bearing face (3). A cylinder (4) and the contact face (2) are calibrated and intended for the palpation. The exterior of the tail (6) is calibrated, the interior is provided with a conical (11) bore and the end thereof is provided with a wedge-shaped chamfer (13). The contact face (2) is provided with a countersink (9) and a threading (8) suitable for receiving an expansion screw (10) at the conical end. A device according to the invention is particularly intended to serve as palpation point for a measuring machine in a method for planing any tool, part, or assembly.

Description

DISPOSITIF FORMANT PINULE POUR MACHINE DE MESURE PIN-FORMING DEVICE FOR MEASURING MACHINE
TRIDIMENSIONNELLETHREE DIMENSIONAL
La présente invention concerne un dispositif formant pinule pour machine de mesure tridimensionnelle, notamment dans une procédure de dégauchissement d'un outillage, d'une pièce, ou d'un ensemble quelconque.The present invention relates to a device forming pinule for three-dimensional measuring machine, in particular in a procedure for aligning a tool, a part, or any set.
Un tel dispositif formant pinule est également désigné, par l'homme du métier des dispositifs de mesure, par « dispositif de palpage », « dispositif de palpation » ou « touche de palpeur ».Such a device forming pinule is also designated, by those skilled in the art measuring devices, by "probing device", "palpation device" or "touch probe".
On connaît déjà -voir par exemple FR 2 619 906— un dispositif formant pinule comprenant une sphère calibrée de palpation, une partie intermédiaire cylindrique non calibrée reliée solidairement à la sphère calibrée et présentant un épaulement servant de butée de positionnement, . et une queue cylindrique d'un diamètre défini calibré destinée à la mise en place de la pinule sur l'outillage, la pièce, ou l'ensemble à mesurer par la machine de mesure. La sphère est assemblée axialement à la partie intermédiaire par collage ou brasure.It is already known -see for example FR 2619906- a device forming pinule comprising a calibrated sphere of palpation, a non-calibrated cylindrical intermediate portion integrally connected to the calibrated sphere and having a shoulder serving as a positioning stop. and a cylindrical shank of a calibrated defined diameter intended for the establishment of the pinule on the tooling, the workpiece, or the assembly to be measured by the measuring machine. The sphere is axially assembled to the intermediate portion by gluing or brazing.
De tels dispositifs présentent un inconvénient majeur. En particulier, une erreur positive d'usinage de l'alésage destiné à recevoir le dispositif formant pinule rend les mesures effectuées caduques, en raison du jeu résultant entre le diamètre de l'alésage réalisé et le diamètre fixe de la queue du dispositif formant pinule.Such devices have a major disadvantage. In particular, a positive machining error of the bore for receiving the pinule device renders the measurements made obsolete, because of the resulting clearance between the diameter of the bore made and the fixed diameter of the tail of the pinule device. .
De même, une erreur négative d'usinage ne permet pas d'insérer le dispositif formant pinule et nécessite un réalésage précis du trou destiné à recevoir le dispositif.Likewise, a negative machining error does not allow the pinule device to be inserted and requires precise boring of the hole intended to receive the device.
Un dispositif selon l'invention vise à pallier ces inconvénients.A device according to the invention aims to overcome these disadvantages.
En particulier, l'invention vise à fournir un dispositif formant pinule qui puisse permettre la réalisation de mesures précises, y compris en cas d'erreur d'alésage du trou destiné à recevoir le dispositif formant pinule.In particular, the invention aims to provide a pinule device that can allow the realization of precise measurements, including in case of bore hole error for receiving the device pinule.
L'invention vise également à fournir un dispositif formant pinule qui puisse s'adapter à différents diamètres d'alésages tout en permettant des mesures précises.The invention also aims to provide a pinule device that can adapt to different bore diameters while allowing precise measurements.
Pour ce faire, l'invention concerne un dispositif formant pinule pour machine de mesure tridimensionnelle, s'étendant le long d'une direction, dite direction longitudinale, comprenant : - une portion cylindrique calibrée agencée à une extrémité longitudinale du dispositif,To this end, the invention relates to a device forming a pinch for a three-dimensional measuring machine, extending along a direction, referred to as the longitudinal direction, comprising: a calibrated cylindrical portion arranged at a longitudinal end of the device;
- une queue cylindrique d'assemblage du dispositif formant pinule à une pièce à mesurer, agencée à une extrémité longitudinale du dispositif opposée à ladite portion cylindrique calibrée, et adaptée pour être logée dans un alésage, dit alésage de réception, de la pièce à mesurer,a cylindrical shank for assembling the pinion device with a piece to be measured, arranged at a longitudinal end of the device opposite to said calibrated cylindrical portion, and adapted to be housed in a bore, called the receiving bore, of the piece to be measured; ,
- une face plane, dite face d'appui, orthogonale à ladite direction longitudinale, et adaptée pour venir en contact avec ladite pièce à mesurer une fois la queue cylindrique d'assemblage logée dans ledit alésage de réception, caractérisé en ce qu'il comprend : - un alésage central s'étendant longitudinalement de part en part du dispositif formant pinule et présentant au niveau de ladite queue cylindrique, une portion conique,a planar face, referred to as a bearing surface, orthogonal to said longitudinal direction, and adapted to come into contact with said part to be measured once the cylindrical assembly shank housed in said receiving bore, characterized in that it comprises a central bore extending longitudinally from one side of the pinule device and having, at the level of said cylindrical shank, a conical portion,
- au moins une fente ménagée dans ladite queue, chaque fente étant traversante radialement, débouchant dans ladite portion conique dudit alésage central, et s'étendant longitudinalement le long d'une portion de ladite queue cylindrique, de manière à permettre une déformation radiale de ladite queue cylindrique,at least one slot formed in said shank, each slot being traversed radially, opening into said conical portion of said central bore, and extending longitudinally along a portion of said cylindrical shank, so as to allow radial deformation of said cylindrical tail,
- une vis d'expansion comprenant une portion conique de même conicité que la portion conique dudit alésage central, ladite vis d'expansion étant logée dans ledit alésage central et adaptée pour pouvoir être déplacée longitudinalement dans l'alésage central et provoquer une expansion radiale de ladite queue cylindrique de manière à assurer un assemblage sans jeu de ladite queue cylindrique d'assemblage dans ledit alésage de réception de ladite pièce à mesurer. Chaque fente ménagée dans la queue cylindrique s'étend au moins le long d'une portion de la queue cylindrique. Néanmoins, avantageusement et selon l'invention, chaque fente s'étend intégralement le long de la queue cylindrique.an expansion screw comprising a conical portion of the same conicity as the conical portion of said central bore, said expansion screw being housed in said central bore and adapted to be able to be displaced longitudinally in the central bore and to cause a radial expansion of said cylindrical shank so as to ensure a play-free assembly of said cylindrical assembly shank in said receiving bore of said workpiece to be measured. Each slot in the cylindrical shank extends at least along a portion of the cylindrical shank. Nevertheless, advantageously and according to the invention, each slot extends integrally along the cylindrical shank.
Avantageusement et selon l'invention, ladite portion cylindrique calibrée comprend une face plane, dite face de contact, destinée à venir en contact avec ladite machine de mesure, parallèle à ladite face d'appui et distante de celle-ci d'une valeur prédéterminée.Advantageously and according to the invention, said calibrated cylindrical portion comprises a flat face, referred to as a contact face, intended to come into contact with said measuring machine, parallel to said support face and remote from it by a predetermined value. .
En pratique, la machine de mesure comprend un palpeur muni d'un stylet. C'est ce stylet qui vient en contact de la face de contact de la portion cylindrique calibrée d'un dispositif selon l'invention. Avantageusement et selon l'invention, ledit alésage central est au moins en partie taraudé et~lâ vis d'expansion présente au moins un filetage extérieur conjugué au filetage dudit alésage central.In practice, the measuring machine comprises a probe with a stylus. It is this stylet that comes into contact with the contact face of the calibrated cylindrical portion of a device according to the invention. Advantageously and according to the invention, said central bore is at least partly threaded and ~ lâ expansion screw has at least one external thread conjugated to the thread of said central bore.
Avantageusement et selon l'invention, ladite vis d'expansion comprend une tête de vis présentant une empreinte adaptée pour recevoir un outil de manière à ce qu'un opérateur puisse agir sur la vis par l'intermédiaire d'un outil de vissage et assurer le blocage du dispositif formant pinule dans ledit alésage de réception.Advantageously and according to the invention, said expansion screw comprises a screw head having a recess adapted to receive a tool so that an operator can act on the screw by means of a screwing tool and ensure locking the pinule device in said receiving bore.
Avantageusement et selon l'invention, ladite queue cylindrique d'assemblage présente un chanfrein à son extrémité libre de manière à faciliter son logement dans ledit alésage de réception.Advantageously and according to the invention, said cylindrical tail assembly has a chamfer at its free end so as to facilitate its housing in said receiving bore.
Avantageusement et selon l'invention, ladite portion cylindrique calibrée comprend un lamage adapté pour recevoir ladite tête de vis et présentant un fond de lamage contre lequel vient buter ladite tête de vis une fois l'expansion maximale tolérable de la queue d'assemblage atteinte. Cette butée permet d'éviter la rupture de la queue en cas de serrage trop important.Advantageously and according to the invention, said calibrated cylindrical portion comprises a recess adapted to receive said screw head and having a counterbore bottom against which abuts said screw head once the maximum tolerable expansion of the assembly tail reached. This stop prevents the breaking of the tail if too much tightening.
Avantageusement et selon l'invention, ladite portion cylindrique calibrée et ladite queue cylindrique sont concentriques.Advantageously and according to the invention, said calibrated cylindrical portion and said cylindrical tail are concentric.
Avantageusement, un dispositif selon l'invention comprend au moins deux fentes radialement traversantes, s 'étendant longitudinalement le long d'une portion de ladite queue cylindrique et débouchant dans ladite portion conique dudit alésage central de manière à permettre une déformation radiale de ladite queue cylindrique.Advantageously, a device according to the invention comprises at least two radially through slots, extending longitudinally along a portion of said cylindrical shank and opening into said conical portion of said central bore so as to allow radial deformation of said cylindrical shank.
Avantageusement et selon l'invention, la portion cylindrique calibrée et ladite queue cylindrique d'assemblage sont formées d'une seule pièce. Avantageusement, un dispositif selon l'invention comprend :Advantageously and according to the invention, the calibrated cylindrical portion and said cylindrical tail assembly are formed in one piece. Advantageously, a device according to the invention comprises:
- une portion intermédiaire de faible épaisseur agencée entre la portion cylindrique calibrée et ladite face d'appui,an intermediate portion of small thickness arranged between the calibrated cylindrical portion and said bearing face,
- au moins trois fentes radialement traversantes, s 'étendant longitudinalement le long de ladite queue cylindrique et de ladite portion intermédiaire et débouchant dans ladite portion conique dudit alésage central de — manière à permettre une déformation radiale- de ladite queue cylindrique et de ladite portion intermédiaire.at least three radially through-slots extending longitudinally along said cylindrical shank and said intermediate portion and opening into said conical portion of said central bore so as to allow radial deformation of said cylindrical shank and said intermediate portion; .
Selon une variante de l'invention, le dispositif comprend un corps d'un seul tenant entièrement cylindrique percé de part en part. La première partie est destinée à la palpation. Elle s'effectue sur le cylindre calibré de même diamètre qu'une sphère calibrée, et également sur la partie supérieure également calibrée par rapport à la face d'appui. Le centre de cette première partie est pourvu d'un lamage et d'un filetage recevant la vis d'expansion du dispositif formant pinule. Selon une variante de l'invention, la partie intermédiaire n'est pas calibrée sur son diamètre extérieur. Elle comporte un épaulement utilisé comme face d'appui de positionnement. La portion intermédiaire présente une faible épaisseur et est pourvue de fentes radialement traversantes pour permettre son expansion ou son retrait, l'intérieur laisse passer librement la vis d'expansion. La queue destinée au positionnement du dispositif formant pinule est calibrée en l'état, elle est également pourvue de fentes dans le prolongement de la partie intermédiaire pour son expansion ou son retrait, l'intérieur est pourvu d'un alésage conique, son extrémité est pourvue d'un chanfrein en biseau pour faciliter l'entrée dans le cas d'un alésage de réception étroit.According to a variant of the invention, the device comprises an integrally cylindrical body completely pierced from one side. The first part is intended for palpation. It is performed on the calibrated cylinder of the same diameter as a calibrated sphere, and also on the upper part also calibrated relative to the bearing face. The center of this first part is provided with a counterbore and a thread receiving the expansion screw of the pinule device. According to a variant of the invention, the intermediate portion is not calibrated on its outside diameter. It comprises a shoulder used as a positioning support face. The intermediate portion has a small thickness and is provided with radially through slots to allow expansion or removal, the interior allows free passage of the expansion screw. The tail for positioning the pinule device is calibrated in the state, it is also provided with slots in the extension of the intermediate part for its expansion or removal, the inside is provided with a conical bore, its end is provided with bevel chamfer to facilitate entry in the case of a narrow receiving bore.
Une vis de même conicité que l'intérieur de la queue traversant librement la partie intermédiaire permet l'expansion du diamètre de la queue lors de son serrage par un opérateur, ce qui permet d'éliminer le jeu entre l'alésage défectueux et le diamètre nominal de la queue.A screw with the same taper as the inside of the tail traversing freely the intermediate portion allows the expansion of the diameter of the tail when tightened by an operator, which eliminates the clearance between the defective bore and the nominal diameter of the tail.
Le dispositif formant pinule permet de compenser une erreur d'alésage réalisé sur l'outillage à mesurer dans le positif comme dans le négatif par rapport à une côte nominale, étant donné que la queue, qui permet le positionnement du dispositif sur l'outillage à mesurer, est expansible et capable de se rétracter par rapport à son diamètre nominal.The pinule device makes it possible to compensate for a boring error made on the tool to be measured in the positive as in the negative compared to a nominal dimension, since the tail, which allows the positioning of the device on the tooling to measure, is expandable and retractable in relation to its nominal diameter.
Selon une variante de l'invention, un lamage réalisé au centre de la partie supérieure est destiné à loger la tête de la vis et à servir de blocage de celle-ci afin qu'elle ne gêne pas la palpation, ainsi qu'à limiter l'expansion du diamètre de la queue afin d'éviter sa rupture lors d'un serrage par un opérateur hors montage, la tête de vis venant alors en butée contre le fond de lamage.According to a variant of the invention, a countersink formed in the center of the upper part is intended to house the head of the screw and to serve as a locking thereof so that it does not hinder the palpation, and to limit the expansion of the diameter of the tail in order to prevent it breaking when clamped by an off-line operator, the screw head then coming into abutment against the bottom of the counterbore.
Le dispositif selon l'invention peut être réalisé en acier spécial, alliant dureté et élasticité après trempe et usinage.The device according to the invention can be made of special steel, combining hardness and elasticity after quenching and machining.
L'invention concerne en outre un dispositif formant pinule caractérisé en combinaison par tout ou partie des caractéristiques mentionnées ci- dessus ou ci-après.The invention further relates to a pinule device characterized in combination by all or some of the features mentioned above or below.
D'autres caractéristiques, buts et avantages de l'invention apparaîtront à la lecture de la description suivante qui présente à titre d'exemple non limitatif un mode de réalisation de l'invention, en référence aux dessins annexés ; sur ces dessins :Other characteristics, objects and advantages of the invention will become apparent on reading the following description which, by way of nonlimiting example, shows one embodiment of the invention, with reference to the appended drawings; in these drawings:
- la figure 1 est une vue schématique en coupe d'un dispositif formant pinule selon un mode de réalisation de l'invention, - la figure 2 est une vue schématique selon la coupe A-A du dispositif de la figure 1.FIG. 1 is a diagrammatic sectional view of a pinule device according to one embodiment of the invention; FIG. 2 is a diagrammatic view along section A-A of the device of FIG.
En référence aux figures, le dispositif comprend un corps 1 principal entièrement cylindrique formé d'un seul tenant. Rien n'empêche selon d'autres modes de réalisation, de prévoir un corps cylindrique formé de plusieurs pièces distinctes et assemblées les unes aux autres.With reference to the figures, the device comprises a fully cylindrical main body 1 formed integrally. Nothing prevents according to other embodiments, to provide a cylindrical body formed of several separate parts and assembled to each other.
Selon le mode de réalisation des figures, le corps 1 cylindrique présente une face calibrée, dite face 2 de contact, une face 3 d'appui, parallèle à la face calibrée, un cylindre 4 calibré, un lamage 9 et un filetage 8 adapté pour recevoir une vis 10.According to the embodiment of the figures, the body 1 cylindrical has a calibrated face, said face 2 of contact, a bearing face 3, parallel to the calibrated face, a calibrated cylinder 4, a counterbore 9 and a thread 8 adapted to receive a screw 10.
Selon un autre mode de réalisation, le corps 1 n'est pas filetée et la vis 10 d'expansion, non filetée, est adaptée pour se déplacer dans l'alésage central du corps 1 par un mécanisme à ressort logé dans le lamage 9.According to another embodiment, the body 1 is not threaded and the expansion screw, not threaded, is adapted to move in the central bore of the body 1 by a spring mechanism housed in the counterbore 9.
Une partie 5 intermédiaire et une queue 6 cylindrique comportent au moins une fente 7 traversante radialement et s 'étendant longitudinalement le long de ladite queue cylindrique, de manière à permettre une déformation radiale de ladite queue cylindrique. Ces fentes 7 permettent l'expansion - ou le retrait du diamètre de la queue 6 par rapport à son diamètre nominal. Cette — partie 5 intermédiaire est de faible épaisseur et pourvue d'un épaulement formant la face 3 d'appui de positionnement.An intermediate portion and a cylindrical shank 6 comprise at least one radially extending through slot 7 extending longitudinally along said cylindrical shank so as to allow radial deformation of said cylindrical shank. These slots 7 allow the expansion - or the withdrawal of the diameter of the tail 6 relative to its nominal diameter. This - intermediate part 5 is thin and provided with a shoulder forming the face 3 of positioning support.
Selon un mode de réalisation avantageux de l'invention, la queue 6 cylindrique comprend trois fentes 7 séparées les unes des autres de 120°. Néanmoins, rien n'empêche de prévoir un nombre différent de fentes et une répartition non uniforme.According to an advantageous embodiment of the invention, the cylindrical tail 6 comprises three slots 7 separated from each other by 120 °. Nevertheless, nothing prevents to provide a different number of slots and a non-uniform distribution.
La queue 6 qui sert à positionner le dispositif formant pinule est calibrée sur son diamètre extérieur en l'état, elle comporte à l'intérieur, un cône 11, et à son extrémité, un chanfrein 13 en biseau pour faciliter le logement de la queue dans le cas d'un alésage étroit.The tail 6 which serves to position the pinule device is calibrated on its outer diameter in the state, it has inside a cone 11, and at its end, a chamfer 13 beveled to facilitate the housing of the tail in the case of a narrow bore.
Une vis 10 comporte à son extrémité un cône 12 de même conicité que le cône 11 de l'intérieur de la queue 6, son filetage est conjugué avec le filetage du corps 1, sa tête vient se loger à l'intérieur du lamage 9 afin de ne pas gêner la palpation, elle traverse librement la partie 5 intermédiaire, sa tête vient en butée en fond de lamage, l'expansion maximale autorisée étant obtenue de manière à éviter la rupture de la queue 6 lors d'un serrage par un opérateur hors montage.A screw 10 has at its end a cone 12 of the same conicity as the cone 11 of the inside of the tail 6, its thread is conjugated with the thread of the body 1, its head is housed inside the countersink 9 so not to interfere with the palpation, it passes freely through the intermediate part 5, its head abuts at the bottom of the counterbore, the maximum authorized expansion being obtained so as to avoid the rupture of the shank 6 when clamped by an operator hors montage.
Lors du montage d'un dispositif sur un alésage hors tolérances après serrage de la vis 10, l'expansion se produit et élimine le jeu, avec une concentricité parfaite entre l'alésage et le cylindre 4 réservé à la palpation, ce qui permet la prise de mesures valides. L'invention ne se limite pas au seul mode de réalisation décrit. Les formes, dimensions et dispositions des différents éléments pourront varier dans la limite des équivalents, comme d'ailleurs les matières utilisées pour leur fabrication, sans changer la conception générale de l'invention décrite. When mounting a device on a bore out of tolerances after tightening the screw 10, the expansion occurs and eliminates the clearance, with a perfect concentricity between the bore and the cylinder 4 reserved for palpation, which allows the taking valid measurements. The invention is not limited to the single embodiment described. The shapes, dimensions and arrangements of the various elements may vary within the limit of equivalents, as indeed the materials used for their manufacture, without changing the general design of the described invention.

Claims

REVENDICATIONS
Xl- Dispositif formant pinule pour machine de mesure tridimensionnelle, s'étendant le long d'une direction, dite direction longitudinale, comprenant : - une portion (4) cylindrique calibrée agencée à une extrémité longitudinale du dispositif formant pinule,Xl- pinion device for three-dimensional measuring machine, extending along a direction, said longitudinal direction, comprising: - a calibrated cylindrical portion (4) arranged at a longitudinal end of the pinule device,
- une queue (6) cylindrique d'assemblage du dispositif formant pinule à une pièce à mesurer par ladite machine de mesure, agencée à une extrémité longitudinale du dispositif opposée à ladite portion (4) cylindrique calibrée, et adaptée pour être logée dans un alésage, dit alésage de réception, de ladite pièce à mesurer,a cylindrical tail (6) for assembling the pinion device with a piece to be measured by said measuring machine, arranged at a longitudinal end of the device opposite to said calibrated cylindrical portion (4), and adapted to be housed in a bore , said receiving bore, of said piece to be measured,
- une face plane, dite face (3) d'appui, orthogonale à ladite direction longitudinale, et adaptée pour venir en contact avec ladite pièce à mesurer une fois la queue (6) cylindrique d'assemblage logée dans ledit alésage de réception, caractérisé en ce qu'il comprend :a planar face, referred to as the bearing face (3), orthogonal to said longitudinal direction, and adapted to come into contact with said part to be measured once the cylindrical assembly shank (6) housed in said receiving bore, characterized in that it comprises:
- un alésage central s'étendant longitudinalement de part en part du dispositif formant pinule et présentant au niveau de ladite queue (6) cylindrique, une portion (11) conique, - au moins une fente (7) ménagée dans ladite queue (6), ladite fente (7) étant traversante radial ement, débouchant dans ladite portion (11) conique dudit alésage central, et s'étendant longitudinalement le long d'une portion de ladite queue (6) cylindrique, de manière à permettre une déformation radiale de ladite queue (6) cylindrique, - une vis (10) d'expansion comprenant une portion (12) conique de même conicité que la portion (11) conique dudit alésage central, ladite vis (10) d'expansion étant logée dans ledit alésage central et adaptée pour pouvoir être déplacée longitudinalement dans l'alésage central et provoquer une expansion radiale de ladite queue (6) cylindrique de manière à assurer un assemblage sans jeu de ladite queue (6) cylindrique d'assemblage dans ledit alésage de réception. 21- Dispositif selon la revendication I5 caractérisé en ce que ladite portion (4) cylindrique calibrée comprend une face plane, dite face (2) de contact, destinée à venir en contact avec ladite machine de mesure, parallèle à ladite face (3) d'appui et distante de celle-ci d'une valeur prédéterminée. 3/- Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que ledit alésage central est au moins en partie taraudé et en ce que ladite vis (10) d'expansion présente au moins un filetage extérieur conjugué au filetage (8) dudit alésage central.a central bore extending longitudinally from one side of the pinule device and having, at the level of said cylindrical shank (6), a conical portion (11), at least one slot (7) formed in said shank (6); said slot (7) being radially through, opening into said conical portion (11) of said central bore, and extending longitudinally along a portion of said cylindrical shank (6), so as to allow radial deformation of said cylindrical shank (6); - an expansion screw (10) comprising a conical portion (12) having the same conicity as the conical portion (11) of said central bore, said expansion screw (10) being housed in said bore central and adapted to be movable longitudinally in the central bore and cause a radial expansion of said cylindrical shank (6) so as to ensure a play-free assembly of said cylindrical tail assembly (6) in said bore of r reception. 21- Device according to claim I 5 characterized in that said portion (4) calibrated cylindrical comprises a flat face, said face (2) of contact, intended to come into contact with said measuring machine, parallel to said face (3) of support and remote therefrom by a predetermined value. 3 / - Device according to one of claims 1 or 2, characterized in that said central bore is at least partially threaded and in that said expansion screw (10) has at least one external thread conjugate thread (8). ) of said central bore.
Al- Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que ladite vis (10) d'expansion comprend une tête de vis présentant une empreinte adaptée pour τecevoir un outil de manière à ce qu'un opérateur puisse agir sur la vis (10) par l'intermédiaire d'un outil de vissage et assurer le blocage du dispositif formant pinule dans ledit alésage de réception.Al- Device according to one of claims 1 to 3, characterized in that said screw (10) for expansion comprises a screw head having a cavity adapted to τ receive a tool so that an operator can act on the screw (10) by means of a screwing tool and ensure the locking pinule device in said receiving bore.
5/- Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que ladite queue (6) cylindrique d'assemblage présente un chanfrein (13) à son extrémité libre de manière à faciliter son logement dans ledit alésage de réception.5 / - Device according to one of claims 1 to 4, characterized in that said tail (6) cylindrical assembly has a chamfer (13) at its free end so as to facilitate its housing in said receiving bore.
61- Dispositif selon la revendication 5, caractérisé en ce que ladite portion (4) cylindrique calibrée comprend un lamage (9) adapté pour recevoir ladite tête de vis et présentant un fond de lamage contre lequel vient buter ladite tête de vis une fois l'expansion maximale tolérable de la queue (6) d'assemblage cylindrique atteinte.61- Device according to claim 5, characterized in that said portion (4) calibrated cylindrical comprises a countersink (9) adapted to receive said screw head and having a bottom counter against which abuts said screw head once the maximum tolerable expansion of the cylindrical assembly tail (6) reached.
Il- Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que ladite portion (4) cylindrique calibrée et ladite queue (6) cylindrique sont concentriques.II- Device according to one of claims 1 to 6, characterized in that said portion (4) cylindrical calibrated and said tail (6) cylindrical are concentric.
8/- Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'elle comprend au moins deux fentes (7) radialement traversantes, s'étendant longitudinalement le long d'une portion de ladite queue (6) cylindrique et débouchant dans ladite portion (11) conique dudit alésage central de manière à permettre une déformation radiale de ladite queue (6) cylindrique.8 / - Device according to one of claims 1 to 7, characterized in that it comprises at least two slots (7) radially through, extending longitudinally along a portion of said tail (6) cylindrical and opening in said conical portion (11) of said central bore so as to allow radial deformation of said cylindrical shank (6).
91- Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la portion (4) cylindrique calibrée et ladite queue (6) cylindrique d'assemblage sont formées d'une seule pièce (1).91- Device according to one of claims 1 to 8, characterized in that the calibrated cylindrical portion (4) and said cylindrical assembly shank (6) are formed in one piece (1).
10/- Dispositif selon l'une des revendications 1 à 9, caractérisé en ce qu'il comprend : - une portion (5) intermédiaire de faible épaisseur agencée entre la portion (4) cylindrique calibrée et ladite face (3) d'appui,10 / - Device according to one of claims 1 to 9, characterized in that it comprises: - an intermediate portion (5) of small thickness arranged between the portion (4) calibrated cylindrical and said face (3) support ,
- au moins trois fentes (7) radialement traversantes, s 'étendant longitudinalement le long de ladite queue (6) cylindrique et de ladite portion (5) intermédiaire et débouchant dans ladite portion (11) conique dudit alésage central de manière à permettre une déformation radiale de ladite queue (6) cylindrique et de la dite portion (5) intermédiaire. ' ~ at least three radially-traversing slots (7) extending longitudinally along said cylindrical tail (6) and said intermediate portion (5) and opening into said conical portion (11) of said central bore so as to allow deformation radial of said cylindrical tail (6) and said intermediate portion (5). '~
EP07788877A 2006-06-28 2007-06-13 Device forming sight-vane for three-dimensional measuring machine Withdrawn EP2041511A1 (en)

Applications Claiming Priority (2)

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FR0606030A FR2903180B1 (en) 2006-06-28 2006-06-28 PALPING DEVICE FOR A THREE-DIMENSIONAL MEASURING MACHINE
PCT/FR2007/000972 WO2008000926A1 (en) 2006-06-28 2007-06-13 Device forming sight-vane for three-dimensional measuring machine

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EP2041511A1 true EP2041511A1 (en) 2009-04-01

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EP (1) EP2041511A1 (en)
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CN109341469A (en) * 2018-12-12 2019-02-15 张枫 A kind of blind threaded detection device of automation
CN109404409A (en) * 2018-12-17 2019-03-01 江南机电设计研究所 A kind of six side's transmission shaft structure of fluting that can eliminate drive gap
CN114234772A (en) * 2022-01-27 2022-03-25 中国航发贵州黎阳航空动力有限公司 Device for measuring blade interval of guide ring

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FR2903180A1 (en) 2008-01-04
WO2008000926A1 (en) 2008-01-03
US7841099B2 (en) 2010-11-30
FR2903180B1 (en) 2008-09-19
US20090199423A1 (en) 2009-08-13

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