EP1193345A1 - Control system for rail grinding machine - Google Patents

Control system for rail grinding machine Download PDF

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Publication number
EP1193345A1
EP1193345A1 EP01402518A EP01402518A EP1193345A1 EP 1193345 A1 EP1193345 A1 EP 1193345A1 EP 01402518 A EP01402518 A EP 01402518A EP 01402518 A EP01402518 A EP 01402518A EP 1193345 A1 EP1193345 A1 EP 1193345A1
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EP
European Patent Office
Prior art keywords
grinding wheel
control system
sensor
grinding
channel
Prior art date
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Granted
Application number
EP01402518A
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German (de)
French (fr)
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EP1193345B1 (en
Inventor
Jean-Marie Bressan
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.)
Societe des Anciens Etablissements Lucien Geismar SAS
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Societe des Anciens Etablissements Lucien Geismar SAS
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Publication of EP1193345A1 publication Critical patent/EP1193345A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means

Definitions

  • the invention relates to a system for controlling the grinding wheel of a machine for grinding parts such as rails, comprising a wheel bearing device movable in a support frame between a position in which the grinding wheel is moved away from the workpiece and a position in which the grinding wheel is in contact with this part and a contact detection device of the grinding wheel with the part.
  • a control system of this type is known from the document EP 05 93 361, in its application to the grinding of railroad tracks, to redo the profile or to erase signs of wave or slip wear from wheels.
  • the main difficulty during such grinding comes from the rapid wear of the grinding wheel during job.
  • Known methods use principles for limiting the pressure of the grinding wheel on the rail or manual approaches, which does not guarantee sufficient precision and does not authorize a integration into this automatic process.
  • the object of the present invention is to provide a device capable of accurately detecting docking of the grinding wheel on the rail and this whatever the conditions of use and the environment.
  • control system is characterized in that the means of detection of the contact between the grinding wheel and the workpiece is a device for detecting sparks produced during of this contact.
  • the detection device includes a sensor for sparks placed near the grinding wheel, a detector of light, which is offset and arranged in a location protected against parasites, and a means of transmission of light between the sensor and the detector.
  • the transmission means are formed by an optical fiber.
  • the machine essentially comprises a grinding wheel 1 placed on a grinding wheel carriage 2 movable along a beam 3 which is pivotally mounted at each of its ends on a displacement device 4 in translation of the beam 3.
  • This drive device in translation 4 of the beam is mounted on a module 5 of rotation of the beam around the rail 6.
  • This set is mounted on a support frame 7 which has two elements 8, 9 each in the form of a frame through which extends the rail 6. The two frame elements are placed at a certain distance from each other, in the longitudinal direction of the rail 6.
  • the grinding wheel 1 is rotatably mounted on the carriage 2 and is rotated by a hydraulic motor 11.
  • the translational drive device 4 of the beam 3 essentially comprises a driving element 12 such as a jack provided with a rod 13 at the end of which the end of beam 3 is articulated.
  • grinding also comprises a device for retaining the rail 6, which essentially comprises stop members 15 as well as at the level of each frame 8, 9 a rail clamping cylinder 17 and a clamping cylinder rails 18, which act perpendicular to the direction longitudinal of the rail to push it on the stop elements 19.
  • the grinding wheel carriage 2 door above the grinding wheel 1 a protective plate 20, advantageously made of aluminum, which extends perpendicular to the axis of the grinding wheel while styling it.
  • a sensor 22 which allows recognition of the emission of sparks produced when the grinding wheel 1 comes into contact with the workpiece, in the example shown rail 6.
  • This sensor essentially comprises a block 21, advantageously made of aluminum, and a sensor member made of shape of a plexiglass pad 23, mounted in the block 21 at the narrower bottom of a conical channel 25 opening towards grinding wheel 1 and tangentially arranged compared to the latter.
  • the opening 26 of the channel is located at a certain distance from the contact point of the grinding wheel with the rail.
  • the pellet is housed in a support 28 coming to screw in abutment on the end of an optical fiber 29.
  • the fiber is held in the block by a tightening screw 30
  • a blowing device of air is integrated into the block and has conduits 31 which open in channel 25 and through which air tablet is blown into the canal to prevent dust and grinding particles can enter in the canal and reach the plexiglass patch at bottom of the canal.
  • the other end of the optical fiber 29 is connected to a light detector 33 formed advantageously by a photodiode and mounted together with its electronics, in a sealed waterproof box 34 on the grinding wheel carriage 2, as seen on the Figure 2.
  • the housing 34 is offset from the sensor of sparks 22 and located at a location where it is protected against thermal variations, vibrations, grinding particles and dust.
  • the housing is cooled to prevent degradation of components it contains. As seen in Figure 2, the housing is located at the top of the carriage 2, above the protective plate 20.
  • the wheel is slightly tilted at an angle inclination of 1 or 2 ° from the rails, on the rear of its longitudinal displacement movement. So the grindstone front is biting and you get a quasi-punctual contact of the grinding wheel with the rail. The location of production of sparks during the docking of the wheel on the rail is therefore well defined.
  • the invention has many advantages by state of the art. By proposing a process optical detection of the wheel coming into contact with the rail, by recognition of the emission of sparks, in taking into account in particular the frequency of light emitted as a function of the temperature of the loose grains and heated by friction, the invention is not subject to noise propagating in the rail.
  • the offset light detection means and controls, light capture point by optical fibers provides perfect protection against variations thermal, vibration, dust and noise. Protection against light interference is ensured by the use of an infrared wavelength and an angle of capture of the end of the optical fiber. Protection against electrical noise is obtained by the arrangement in a compact block of the detector and electronic processing unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

The grinding machine, consisting of a grinding wheel (1) on a carrier (2) that can be moved in a supporting frame between positions in contact with or separated from a workpiece such as a rail (6), has a grinding wheel position monitor incorporating a spark detector and light sensor, with signals transmitted between them via an optical fibre. The position monitor has a duct in the form of a tapering channel through a block, preferably of aluminum, and a transparent window.

Description

L'invention concerne un système de commande de la meule d'une machine de meulage de pièces telles que des rails, comportant un dispositif porteur de la meule déplaçable dans un bâti de support entre une position dans laquelle la meule est écartée de la pièce à meuler et une position dans laquelle la meule est en contact avec cette pièce et un dispositif de détection du contact de la meule avec la pièce.The invention relates to a system for controlling the grinding wheel of a machine for grinding parts such as rails, comprising a wheel bearing device movable in a support frame between a position in which the grinding wheel is moved away from the workpiece and a position in which the grinding wheel is in contact with this part and a contact detection device of the grinding wheel with the part.

Un système de commande de ce type est connu par le document EP 05 93 361, dans son application au meulage de rails de chemin de fer, pour refaire le profil ou pour effacer des marques d'usure ondulatoire ou de patinage de roues. La difficulté principale lors d'un tel meulage provient de l'usure rapide de la meule au cours du travail. Afin de pouvoir contrôler avec précision la profondeur de meulage, il est nécessaire de compenser cette usure par une localisation précise de la meule par rapport aux rails, en déterminant le point de contact entre rail et meule. Les méthodes connues utilisent des principes de limitation de pression de la meule sur le rail ou des approches manuelles, ce qui ne garantit pas une précision suffisante et n'autorise pas une intégration dans ce processus automatique.A control system of this type is known from the document EP 05 93 361, in its application to the grinding of railroad tracks, to redo the profile or to erase signs of wave or slip wear from wheels. The main difficulty during such grinding comes from the rapid wear of the grinding wheel during job. In order to be able to precisely control the grinding depth, it is necessary to compensate this wear by a precise location of the grinding wheel by relative to the rails, determining the point of contact between rail and grinding wheel. Known methods use principles for limiting the pressure of the grinding wheel on the rail or manual approaches, which does not guarantee sufficient precision and does not authorize a integration into this automatic process.

D'autre part, une des caractéristiques propres au meulage du rail qui augmente la difficulté de cette localisation se situe dans l'environnement de travail, à savoir dans des parasites lumineux, électromagnétiques, sonores etc. Ce problème est spécifique à chaque chantier et s'accompagne de conditions d'utilisation sévères telles que des vibrations, la présence de particules métalliques, la température etc.On the other hand, one of the characteristics of the rail grinding which increases the difficulty of this location is located in the work environment, know in light, electromagnetic parasites, sound etc. This problem is specific to each site and is accompanied by severe conditions of use such as vibrations, the presence of particles metal, temperature etc.

La présente invention a pour but de proposer un dispositif capable de détecter avec précision l'accostage de la meule sur le rail et ceci quelles que soient les conditions d'utilisation et l'environnement.The object of the present invention is to provide a device capable of accurately detecting docking of the grinding wheel on the rail and this whatever the conditions of use and the environment.

Pour atteindre ce but, le système de commande selon l'invention est caractérisé en ce que le moyen de détection du contact entre la meule et la pièce à meuler est un dispositif détecteur des étincelles produites lors de ce contact.To achieve this goal, the control system according to the invention is characterized in that the means of detection of the contact between the grinding wheel and the workpiece is a device for detecting sparks produced during of this contact.

Selon une caractéristique de l'invention, le dispositif de détection comporte un capteur des étincelles disposé près de la meule, un détecteur de lumière, qui est déporté et disposé à un emplacement protégé contre des parasites, et un moyen de transmission de lumière entre le capteur et le détecteur.According to a characteristic of the invention, the detection device includes a sensor for sparks placed near the grinding wheel, a detector of light, which is offset and arranged in a location protected against parasites, and a means of transmission of light between the sensor and the detector.

Selon une caractéristique de l'invention, les moyens de transmission sont formés par une fibre optique.According to a characteristic of the invention, the transmission means are formed by an optical fiber.

L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaítront plus clairement dans la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • la figure 1 est une vue schématique en perspective d'une machine de meulage de rails, équipée d'un dispositif de commande de la meule selon la présente invention ;
  • la figure 2 est une vue à plus grande échelle du dispositif porteur de meule, pourvu du dispositif détecteur d'étincelles selon l'invention ;
  • la figure 3 est une vue schématique du dispositif détecteur selon l'invention ; et
  • la figure 4 est une vue en coupe illustrant un capteur d'étincelles selon l'invention.
The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating a method of realization of the invention and in which:
  • Figure 1 is a schematic perspective view of a rail grinding machine, equipped with a wheel control device according to the present invention;
  • FIG. 2 is an enlarged view of the grinding wheel carrying device, provided with the spark detection device according to the invention;
  • Figure 3 is a schematic view of the detector device according to the invention; and
  • Figure 4 is a sectional view illustrating a spark sensor according to the invention.

En se référant aux figures, l'invention sera décrite dans son application à une machine de meulage automatique de rails telle que représentée sur la figure 1. Une telle machine décrite dans le document EP 0 593 361.Referring to the figures, the invention will be described in its application to a grinding machine automatic rails as shown in the figure 1. Such a machine described in document EP 0 593 361.

La machine comporte essentiellement une meule 1 placée sur un chariot porte-meule 2 déplaçable le long d'une poutre 3 qui est montée pivotante à chacune de ses extrémités sur un dispositif 4 de déplacement en translation de la poutre 3. Ce dispositif d'entraínement en translation 4 de la poutre est monté sur un module 5 de rotation de la poutre autour du rail 6. Cet ensemble est monté sur un bâti de support 7 qui comporte deux éléments 8, 9 chacun en forme d'un cadre à travers lequel s'étend le rail 6. Les deux éléments de cadre sont placés à une certaine distance l'un de l'autre, dans la direction longitudinale du rail 6.The machine essentially comprises a grinding wheel 1 placed on a grinding wheel carriage 2 movable along a beam 3 which is pivotally mounted at each of its ends on a displacement device 4 in translation of the beam 3. This drive device in translation 4 of the beam is mounted on a module 5 of rotation of the beam around the rail 6. This set is mounted on a support frame 7 which has two elements 8, 9 each in the form of a frame through which extends the rail 6. The two frame elements are placed at a certain distance from each other, in the longitudinal direction of the rail 6.

La meule 1 est montée rotative sur le chariot 2 et est entraínée en rotation par un moteur hydraulique 11. Le dispositif d'entraínement en translation 4 de la poutre 3 comprend essentiellement un élément moteur 12 tel qu'un vérin pourvu d'une tige 13 à l'extrémité duquel est articulée l'extrémité de la poutre 3. La machine de meulage comporte en outre un dispositif de retenue du rail 6, qui comprend essentiellement des organes de butée 15 ainsi qu'au niveau de chaque cadre de bâti 8, 9 un vérin de pinçage de rails 17 et un vérin de bridage de rails 18, qui agissent perpendiculairement à la direction longitudinale du rail pour repousser celui-ci sur les éléments de butée 19.The grinding wheel 1 is rotatably mounted on the carriage 2 and is rotated by a hydraulic motor 11. The translational drive device 4 of the beam 3 essentially comprises a driving element 12 such as a jack provided with a rod 13 at the end of which the end of beam 3 is articulated. grinding also comprises a device for retaining the rail 6, which essentially comprises stop members 15 as well as at the level of each frame 8, 9 a rail clamping cylinder 17 and a clamping cylinder rails 18, which act perpendicular to the direction longitudinal of the rail to push it on the stop elements 19.

Conformément à l'invention, le chariot porte-meule 2 porte, au-dessus de la meule 1 une plaque de protection 20, avantageusement en aluminium, qui s'étend perpendiculairement à l'axe de la meule en coiffant celle-ci. Sous la face inférieure de cette plaque, au voisinage de la meule 1 est monté un capteur 22 qui permet la reconnaissance de l'émission d'étincelles produite lorsque la meule 1 vient en contact avec la pièce à meuler, dans l'exemple représenté le rail 6. Ce capteur comporte essentiellement un bloc 21, avantageusement en aluminium, et un organe capteur en forme d'une pastille en plexiglass 23, monté dans le bloc 21 au fond plus rétréci d'un canal conique 25 s'ouvrant en direction de la meule 1 et disposé tangentiellement par rapport à cette dernière. L'ouverture 26 du canal se trouve à une certaine distance de l'endroit de contact de la meule avec le rail. La pastille est logée dans un support 28 venant se visser en butée sur l'extrémité d'une fibre optique 29. La fibre est maintenue dans le bloc par une vis de serrage 30 Un dispositif de soufflage d'air est intégré au bloc et comporte des conduits 31 qui s'ouvrent dans le canal 25 et à travers lesquels de l'air comprimé est soufflé dans le canal pour éviter que de la poussière et des particules de meulage puissent entrer dans le canal et parvenir à la pastille en plexiglass au fond du canal.According to the invention, the grinding wheel carriage 2 door, above the grinding wheel 1 a protective plate 20, advantageously made of aluminum, which extends perpendicular to the axis of the grinding wheel while styling it. Under the underside of this plate, at in the vicinity of the grinding wheel 1 is mounted a sensor 22 which allows recognition of the emission of sparks produced when the grinding wheel 1 comes into contact with the workpiece, in the example shown rail 6. This sensor essentially comprises a block 21, advantageously made of aluminum, and a sensor member made of shape of a plexiglass pad 23, mounted in the block 21 at the narrower bottom of a conical channel 25 opening towards grinding wheel 1 and tangentially arranged compared to the latter. The opening 26 of the channel is located at a certain distance from the contact point of the grinding wheel with the rail. The pellet is housed in a support 28 coming to screw in abutment on the end of an optical fiber 29. The fiber is held in the block by a tightening screw 30 A blowing device of air is integrated into the block and has conduits 31 which open in channel 25 and through which air tablet is blown into the canal to prevent dust and grinding particles can enter in the canal and reach the plexiglass patch at bottom of the canal.

L'autre extrémité de la fibre optique 29 est connectée à un détecteur de lumière 33 formé avantageusement par une photodiode et monté, ensemble avec son électronique, dans un boítier étanche 34 fixé sur le chariot porte-meule 2, comme on le voit sur la figure 2. Le boítier 34 est déporté du capteur d'étincelles 22 et situé à un emplacement où il est protégé contre les variations thermiques, les vibrations, les particules de meulage et la poussière. Le boítier est refroidi afin d'éviter toute dégradation des composants qu'il contient. Comme on le voit sur la figure 2, le boítier se trouve en haut du chariot 2, au-dessus de la plaque de protection 20.The other end of the optical fiber 29 is connected to a light detector 33 formed advantageously by a photodiode and mounted together with its electronics, in a sealed waterproof box 34 on the grinding wheel carriage 2, as seen on the Figure 2. The housing 34 is offset from the sensor of sparks 22 and located at a location where it is protected against thermal variations, vibrations, grinding particles and dust. The housing is cooled to prevent degradation of components it contains. As seen in Figure 2, the housing is located at the top of the carriage 2, above the protective plate 20.

Selon une autre caractéristique de l'invention, la meule est faiblement inclinée selon un angle d'inclinaison de 1 ou 2° par rapport aux rails, sur l'arrière de son mouvement de déplacement longitudinal. Ainsi le front de meule est mordant et on obtient un contact quasi-ponctuel de la meule avec le rail. L'emplacement de production des étincelles lors de l'acostage de la meule sur le rail est donc bien défini.According to another characteristic of the invention, the wheel is slightly tilted at an angle inclination of 1 or 2 ° from the rails, on the rear of its longitudinal displacement movement. So the grindstone front is biting and you get a quasi-punctual contact of the grinding wheel with the rail. The location of production of sparks during the docking of the wheel on the rail is therefore well defined.

L'invention présente de nombreux avantages par rapport à l'état de la technique. En proposant un procédé de détection optique de l'accostage de la meule sur le rail, par reconnaissance de l'émission d'étincelles, en tenant compte en particulier de la fréquence de lumière émise en fonction de la température des grains détachés et échauffés par la friction, l'invention n'est pas sujette au bruit se propageant dans le rail. Le déport des moyens détecteurs de lumière et des commandes, du point de captage de la lumière par les fibres optiques assure une parfaite protection contre les variations thermiques, les vibrations, la poussière et les bruits. La protection contre les parasites lumineux est assurée par l'utilisation d'une longueur d'onde infrarouge et d'un angle de captage de l'extrémité de la fibre optique. Une protection contre des parasites électriques est obtenue par la disposition dans un bloc compact du détecteur et de l'unité de traitement électronique.The invention has many advantages by state of the art. By proposing a process optical detection of the wheel coming into contact with the rail, by recognition of the emission of sparks, in taking into account in particular the frequency of light emitted as a function of the temperature of the loose grains and heated by friction, the invention is not subject to noise propagating in the rail. The offset light detection means and controls, light capture point by optical fibers provides perfect protection against variations thermal, vibration, dust and noise. Protection against light interference is ensured by the use of an infrared wavelength and an angle of capture of the end of the optical fiber. Protection against electrical noise is obtained by the arrangement in a compact block of the detector and electronic processing unit.

Claims (10)

Système de commande de la meule d'une machine de meulage de pièces telles que des rails, comportant un dispositif porteur de la meule monté déplaçable dans un bâti de support entre une position dans laquelle la meule est écartée de la pièce à meuler et une position dans laquelle la meule est en contact avec cette pièce, et un dispositif de détection du contact de la meule avec la pièce, qui est formé par un dispositif détecteur des étincelles produites lors de ce contact, caractérisé en ce que le dispositif détecteur comporte un capteur (22) des étincelles disposé près de la meule (1), un détecteur de lumière (33), qui est déporté et disposé à un emplacement protégé contre des parasites, et un moyen de transmission (29) de lumière entre le capteur (22) et le détecteur (33).Control system for the grinding wheel of a machine for grinding parts such as rails, comprising a device for carrying the grinding wheel mounted so that it can move in a support frame between a position in which the grinding wheel is moved away from the workpiece and a position in which the grinding wheel is in contact with this part, and a device for detecting the contact of the grinding wheel with the part, which is formed by a device detecting the sparks produced during this contact, characterized in that the detecting device comprises a sensor (22) sparks arranged near the grinding wheel (1), a light detector (33), which is offset and disposed in a location protected against parasites, and a means for transmitting (29) light between the sensor (22 ) and the detector (33). Système de commande selon la revendication 1, caractérisé en ce que les moyens de transmission (29) des signaux lumineux sont formés par une fibre optique.Control system according to claim 1, characterized in that the means for transmitting (29) the light signals are formed by an optical fiber. Système de commande selon l'une des revendications 1 ou 2, caractérisé en ce que le capteur (22) comporte un organe capteur (23) disposé à une extrémité d'un organe délimitant un canal (25) s'ouvrant en direction de la meule (1) et en ce que le moyen de transmission (29) est relié à l'organe capteur (23).Control system according to one of claims 1 or 2, characterized in that the sensor (22) comprises a sensor member (23) disposed at one end of a member defining a channel (25) opening in the direction of the grinding wheel (1) and in that the transmission means (29) is connected to the sensor member (23). Système de commande selon la revendication 3, caractérisé en ce que le capteur (22) comporte un bloc (21), avantageusement en aluminium, dans lequel le canal précité (25) est ménagé sous forme d'un canal conique au fond duquel est disposé l'organe capteur (23).Control system according to claim 3, characterized in that the sensor (22) comprises a block (21), advantageously made of aluminum, in which the above-mentioned channel (25) is formed in the form of a conical channel at the bottom of which is arranged the sensor member (23). Système de commande selon l'une des revendications 3 ou 4, caractérisé en ce que l'organe capteur (23) est une pastille en un matériau transparent, avantageusement en plexiglass.Control system according to one of claims 3 or 4, characterized in that the sensor member (23) is a tablet made of a transparent material, advantageously plexiglass. Système de commande selon l'une des revendications 3 à 5, caractérisé en ce que l'axe du canal (25) présente un angle d'inclinaison (α) par rapport à la face à meuler de la pièce à meuler (6), l'angle étant choisi pour assurer une détection optimale des étincelles, et est disposé tangentiellement à l'endroit de production des étincelles.Control system according to one of Claims 3 to 5, characterized in that the axis of the channel (25) has an angle of inclination (α) relative to the grinding face of the workpiece (6), the angle being chosen to ensure optimum detection of sparks, and is arranged tangentially to the place where the sparks are produced. Système de commande selon l'une des revendications 3 à 6, caractérisé en ce que le capteur (22) comporte des moyens (31) de soufflage de l'air comprimé dans le canal de capteur (25) pour empêcher la pénétration des poussières et des particules de meulage dans le canal.Control system according to one of Claims 3 to 6, characterized in that the sensor (22) comprises means (31) for blowing compressed air into the sensor channel (25) to prevent the ingress of dust and grinding particles in the channel. Système de commande selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif détecteur comporte un organe détecteur de lumière, tel qu'une photodiode (33).Control system according to one of claims 1 to 7, characterized in that the detector device comprises a light detector member, such as a photodiode (33). Système de commande selon l'une des revendications 1 à 8, caractérisé en ce qu'une plaque de protection (20) est disposée entre la meule et le dispositif détecteur (33).Control system according to one of Claims 1 to 8, characterized in that a protective plate (20) is arranged between the grinding wheel and the detector device (33). Système de commande selon l'une des revendications 1 à 9, caractérisé en ce que la face de meulage de la meule (1) présente un faible angle d'inclinaison (α) assurant un contact quasi-ponctuel de la meule (1) avec la pièce à meuler (6), le capteur (22) étant disposé tangentiellement à l'endroit du contact quasi-ponctuel.Control system according to one of claims 1 to 9, characterized in that the grinding face of the grinding wheel (1) has a small angle of inclination (α) ensuring almost point contact of the grinding wheel (1) with the workpiece (6), the sensor (22) being arranged tangentially at the point of quasi-point contact.
EP01402518A 2000-09-29 2001-09-28 Control device for rail grinding machine Expired - Lifetime EP1193345B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0012448A FR2814765B1 (en) 2000-09-29 2000-09-29 CONTROL SYSTEM FOR THE GRINDING OF A GRINDING MACHINE IN PARTICULAR OF RAILS
FR0012448 2000-09-29

Publications (2)

Publication Number Publication Date
EP1193345A1 true EP1193345A1 (en) 2002-04-03
EP1193345B1 EP1193345B1 (en) 2005-04-20

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EP01402518A Expired - Lifetime EP1193345B1 (en) 2000-09-29 2001-09-28 Control device for rail grinding machine

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EP (1) EP1193345B1 (en)
AT (1) ATE293720T1 (en)
DE (1) DE60110177T2 (en)
FR (1) FR2814765B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
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WO2012146540A1 (en) * 2011-04-26 2012-11-01 Fama S.R.L. Tangential grinding machine
CN110587232A (en) * 2019-09-07 2019-12-20 东莞天盛电子制品有限公司 Automatic production line process for lamp groove guide rail
CN113696025A (en) * 2021-10-15 2021-11-26 北京星通浩宇科技发展有限公司 Automatic clearing equipment for poor chromium layer of steel-aluminum composite rail
CN116551545A (en) * 2023-05-10 2023-08-08 南京惠然测控技术有限公司 Sensor part processing dust fall burnishing device

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CN101966690A (en) * 2010-07-27 2011-02-09 上海瑞纽机械装备制造有限公司 Light-sensitive automatic grinding and position-detecting system and method

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146540A1 (en) * 2011-04-26 2012-11-01 Fama S.R.L. Tangential grinding machine
CN103518020A (en) * 2011-04-26 2014-01-15 Fama有限责任公司 Tangential grinding machine
CN103518020B (en) * 2011-04-26 2016-07-06 Fama有限责任公司 Tangential grinder
CN110587232A (en) * 2019-09-07 2019-12-20 东莞天盛电子制品有限公司 Automatic production line process for lamp groove guide rail
CN113696025A (en) * 2021-10-15 2021-11-26 北京星通浩宇科技发展有限公司 Automatic clearing equipment for poor chromium layer of steel-aluminum composite rail
CN116551545A (en) * 2023-05-10 2023-08-08 南京惠然测控技术有限公司 Sensor part processing dust fall burnishing device
CN116551545B (en) * 2023-05-10 2024-02-13 南京惠然测控技术有限公司 Sensor part processing dust fall burnishing device

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ATE293720T1 (en) 2005-05-15
EP1193345B1 (en) 2005-04-20
DE60110177T2 (en) 2006-03-09

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