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WO2008074174A1 - Device for automatically supplying a machining work station of a machine tool with mechanical parts - Google Patents

Device for automatically supplying a machining work station of a machine tool with mechanical parts Download PDF

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Publication number
WO2008074174A1
WO2008074174A1 PCT/CH2007/000634 CH2007000634W WO2008074174A1 WO 2008074174 A1 WO2008074174 A1 WO 2008074174A1 CH 2007000634 W CH2007000634 W CH 2007000634W WO 2008074174 A1 WO2008074174 A1 WO 2008074174A1
Authority
WO
WIPO (PCT)
Prior art keywords
parts
arm
machining
gripping member
work station
Prior art date
Application number
PCT/CH2007/000634
Other languages
French (fr)
Inventor
Gianfranco Passini
Original Assignee
Robotic Consulting S.A.R.L.
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 Robotic Consulting S.A.R.L. filed Critical Robotic Consulting S.A.R.L.
Publication of WO2008074174A1 publication Critical patent/WO2008074174A1/en

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Classifications

    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35—Accessories
    • B24B5/355—Feeding means
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture

Definitions

  • the present invention relates to a device for automatically feeding a machine tool machining station into mechanical parts, these parts being notably inner or outer rings of bearings and said machining station being in particular a grinding machine of the machine. raceway of these bearing rings, said feed device comprising transfer means for conveying said parts from a storage unit to said machining station, means for positioning and holding these parts and means for discharge to evacuate said parts after their machining, wherein said means for positioning and holding these parts in said machining station comprise at least one magnetizable rotating support for receiving said parts during their machining.
  • Conventional devices for supplying mechanical parts of this type usually comprise robotic gripping devices and transfer of said parts from a storage magazine to a receiving member in which the parts are held in position during a machining phase.
  • the gripping and transfer members comprise movable arms which are controlled so as to move the workpieces to bring them into the machining zone and then to evacuate them from this zone after their treatment.
  • the present invention proposes to overcome the drawbacks of known devices by offering an automatic mechanical parts feeding device which is easy to manufacture and of economical construction, which can be used for a large number of types of parts. to machine, thereby reducing the number of complex and difficult to adjust tool sets, and which is adaptable to a wide range of machine tools, including a large number of brands of bearing ring grinders.
  • said positioning and holding means comprise at least one intermediate support surface on which said parts are fixed by magnetic effect to bring them to said machining station. , a first gripping member for urging said pieces successively from said intermediate support surface onto said magnetizable rotating support and a second gripping member for withdrawing said parts from said magnetisable rotating support after their machining with a view to their evacuation.
  • said transfer means for conveying said pieces from a storage unit to said machining station comprise at least one conveyor belt which moves in a magnetic field arranged to fix and maintain in position said parts on the surface of this conveyor belt.
  • said conveyor ribbon may be a magnetic tape or a magnetizable tape.
  • said conveyor belt may comprise a substantially rectilinear sector and a curved sector disposed in the extension of said substantially rectilinear sector.
  • said intermediate support surface on which said parts are fixed by magnetic effect is disposed downstream of said curved sector and upstream of said magnetizable rotary support.
  • said first gripping member comprises an arm equipped at its end with a finger and an actuator arranged to linearly move said arm and said second gripping member also comprises an arm equipped with its end of a finger and an actuator arranged to linearly move said arm.
  • said first gripping member advantageously comprises an arm equipped at its end with a pusher or a pallet and an actuator arranged to linearly move said arm and said second gripping member comprises an arm equipped at its end with a scraper or a pallet and an actuator arranged to linearly move said arm.
  • said fingers or pallets are respectively articulated about axes biased in one direction by elastic means against a stop and free to pivot in the opposite direction to meet said elastic means under the effect of a constraint.
  • the fingers or palettes of the two gripping members are arranged to pivot under the effect of a stress against said elastic means in respective opposite directions.
  • the fingers may be associated with dynamic actuation means arranged to rotate them about their respective axes.
  • FIG. 1 shows a schematic perspective view of a preferred embodiment of the feeder • mechanical parts, in particular of bearing rings according to the invention
  • FIG. 2 represents a partial side elevational view of the device of FIG. 1,
  • FIG. 3 represents a partial front elevational view of the device of FIG. 1 illustrating a first operative phase of this device
  • FIG. 4 represents a partial front elevational view of the device of FIG. 1 illustrating a second operating phase of this device, during the machining of a part
  • FIG. 5 represents a partial front elevational view of the device of FIG. 1 illustrating a third operating phase of this device, after the machining of a part, and
  • Figure 6 shows a partial front elevational view of the device of Figure 1 illustrating a fourth phase of operation of this device, during the evacuation of a room. Best way to realize the invention
  • the device 10 according to the invention for the automatic supply of mechanical parts 11 of a machining station 12 of the machine tool is represented in a particular use in which these mechanical parts 11 are inner rings of bearings and the machining station 12 of the machine tool (not shown) on which this automatic feeding device 10 is intended to be mounted is a grinding machine of the raceway of these bearing rings.
  • the function of this device 10 is to automatically route the mechanical parts 11, namely the inner bearing rings (but which could also be outer bearing rings) to the machining station 12 mainly comprising a grinding wheel of grinding 13.
  • This automatic feeding device 10 comprises transfer means 14 for conveying said pieces 11 from a storage unit (not shown) to said machining station 12.
  • These transfer means 14 comprise at least one support surface which comprises, in the embodiment described, a conveyor belt 15 made in the form of a substantially rectilinear sector 15a and a sector 15b curved at an angle of about 90 ° disposed in the extension of the rectilinear sector 15a.
  • a conveyor belt 15 made in the form of a substantially rectilinear sector 15a and a sector 15b curved at an angle of about 90 ° disposed in the extension of the rectilinear sector 15a.
  • an intermediate holding plate 16 Downstream of the curved sector 15b and in its extension, there is an intermediate holding plate 16 between the curved sector 15b and a magnetizable rotating support 17, preferably consisting of a drive sleeve which is provided with electromagnetic means to provide the held by magnetic effect of a workpiece 11 during its machining.
  • This intermediate holding plate 16 is also part of said support surface
  • Said conveyor belt 15 is located in a magnetic field, or is itself magnetic or magnetizable, so that the workpieces are held on its surface by magnetic effect.
  • This magnetic field is by example created by one or more ramps of permanent magnets that are mounted below the ribbon. It could also be electromagnets actuated to adapt the power of the magnetic field depending on the nature and composition of the material of the parts to be treated.
  • the transfer means 14 further comprise a first gripping member 18 for pushing said parts 11 successively from said intermediate holding plate 16 onto said magnetizable rotating support 17 and a second gripping member 19 to remove said parts 11 from said magnetizable rotating support 17 after machining for disposal.
  • the magnetizable rotating support 17 is rotated by a suitable motor (not shown) and the workpiece 11 is retained on this support by a magnetic field generated by an electromagnet (not shown) sufficiently powerful to hold it in position.
  • the workpiece, which is pressed against the magnetizable rotating support 17, bears against two fixed positioning stops 20, arranged substantially perpendicular to each other. As will be described in more detail below, the grinding wheel 13 exerts a thrust on the workpiece 11 held on the magnetizable rotating support 17 so that it is supported on the two fixed positioning stops 20.
  • the first gripping member 18 and the second gripping member 19 each comprise an arm, respectively 18a and 19a, equipped at its end with a finger, respectively 18b and 19b, and which is actuated by a linear actuator 18c and 19c respectively.
  • These linear actuators may be hydraulic or pneumatic cylinders or electric drive mechanisms such as linear motors.
  • the position of the arms 18a and 19a is determined so that the workpieces 11 can be moved, on the one hand, between a standby position on the intermediate holding plate 16 and the magnetizable rotating support 17 before they are machined, and on the other hand, from their processing position, in this case rectification by the grinding wheel 13, to an evacuation zone.
  • the fingers 18b and 19b are respectively fixed to the end of the arms 18a and 19a and are respectively articulated on an axis, respectively 18d and 19d.
  • they are biased in one direction against a stop by elastic means, such as for example a thrust spring (not shown) and free to fold under the effect of a stress in the opposite direction, for example to pass an obstacle such as the edge of a bearing ring before or after the grinding operation.
  • these fingers can be controlled by dynamic actuation means, for example by pneumatic, electric, electromagnetic or any other suitable means.
  • the two gripping members 18 and 19 act in opposite directions. The first is intended to push a workpiece 11 and the second is intended to pull the workpiece after grinding. Their mode of operation will be explained in more detail with reference to FIGS. 3 to 7 which illustrate in more detail the kinematics of the various components of the system.
  • FIG. 3 A first operative phase of the device is shown in FIG. 3.
  • the first gripping member 18 is in a waiting position, that is to say the arm 18a is withdrawn upwards and the finger 18b is in abutment and engaged inside the part 11, in this case the bearing ring, which is waiting on the intermediate holding plate 16 to be ground.
  • FIG. 4 A second phase is shown in FIG. 4.
  • the first gripping member 18 has actuated the arm 18a downwards by means of the linear actuator 18c and the finger 18b, engaged in the central opening of the rolling ring, has the electromagnet of the magnetizable rotating support 17 is energized so that the support becomes magnetic and maintains firmly in position the workpiece.
  • Figure 5 shows the next phase in which the arm 18a withdraws from its position back to its waiting position where the finger 18b enters the central opening of the next ring to be machined.
  • the finger 18b unfolds around its axis 18d by opposing the restoring force which tends to abut it. In this way, this finger 18b slides over the intermediate holding plate 16 automatically, without requiring any dynamic drive mechanism.
  • the grinding wheel 13 comes into operation after a lateral movement which puts it in contact with the workpiece 11 to be machined. To save time, the movements of the part 11 and the wheel 13 are almost simultaneous.
  • the force exerted by the grinding wheel 13 keeps the workpiece 11 in abutment against the two fixed positioning stops 20.
  • the grinding is carried out for a given duration which is determined, either in advance in a programmed manner, or according to the state of operation.
  • the part whose geometry is controlled during machining.
  • Fig. 6 illustrates the operating mode of the second gripping member 19 for removing said parts 11.
  • the actuator 19c moves the arm 19a towards the part 11 which is still on the magnetizable rotating support 17 after the lateral displacement removal of the grinding wheel 13.
  • the finger 19b is folded by opposing a force exerted by a return member (not shown) which tends to abut it, to allow it to enter the central recess of the ring.
  • the prehension 18 can begin a new cycle of placing a workpiece 11, as shown in FIG. 7.
  • the evacuation of the machined workpiece 11 is not shown in more detail. This evacuation can be obtained by the simple gravitational drop of the part 11 when the finger 19b removes it from the intermediate holding plate 16. It can fall directly into a storage container or on a discharge chute or any other device for transporting parts, in particular on a conveyor belt, which brings them to a bearing assembly station.
  • the present invention has many advantages for all the magnetizable parts to be machined and in particular for the bearing rings to grind.
  • the movement and positioning of parts use the magnetic effect.
  • the supply of the workpieces and their evacuation are performed by gripping members whose essential quality is to be universal. Indeed, the fingers of these grippers engage in the same way in rings of 12mm diameter than in rings of 80mm diameter.
  • the particularity of the device according to the invention is not to require tools to replace and adjust each time the grinding machine must grind another type of ring. Consequently, it makes it possible to reduce the dead time between two grinding programs for bearing rings of different sizes. Hence a reduction in costs both for the purchase and the operation of the machines.
  • the device according to the invention can be adapted to all bearing grinding machines, or to other types of machines for machining mechanical parts.
  • the finger that enters the central recess of the rings could be replaced by a pusher, when the workpiece does not have a central clearance.
  • the finger 18b of the first gripping member 18 will be replaced by a pusher or a pallet which unfolds in one direction and stops in abutment in the opposite direction.
  • the second gripping member 19 can also be equipped with a scraper or a pallet, replacing the finger 19b, which unfolds in one direction, namely the direction opposite to that of the first member of the pusher. gripping, and hangs in abutment in the opposite direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

The device (10) for automatically feeding a machining work station (12) of a machine tool, such a grinding machine, with mechanical parts (11), particularly inner or outer rolling bearing rings, comprises transfer means (14) for conveying the parts (11) from a storage unit to the machining work station (12), means (16, 17) for positioning and holding these parts (11) and removal means for removing the parts once they have been machined. The means (16, 17) for positioning and holding these parts in the machining work station comprise at least one magnetic rotary support (17) to accept the parts (11) while they are being machined, and at least one intermediate support surface (16) to which these parts are attached by a magnetic effect in order to carry them towards the machining work station. A first gripper member (18) is designed to push the parts (11) in succession from the intermediate support surface (16) onto the magnetic rotary support (17), and a second gripper member (19) is designed to move the machined parts (11) from the magnetic rotary support (17) so that they can be taken away.

Description

DISPOSITIF D'ALIMENTATION AUTOMATIQUE D'UN POSTE D'USINAGE D'UNE MACHINE-OUTIL EN PIECES DE MECANIQUE DEVICE FOR AUTOMATICALLY SUPPLYING A MACHINE-TOOL MACHINE-TOOL POSITION IN MECHANICAL PARTS
Domaine technique La présente invention concerne un dispositif d'alimentation automatique d'un poste d'usinage de machine-outil en pièces de mécanique, ces pièces étant notamment des bagues intérieures ou extérieures de roulements et ledit poste d'usinage étant notamment une rectifieuse du chemin de roulement de ces bagues de roulements, ledit dispositif d'alimentation comportant des moyens de transfert pour acheminer lesdites pièces depuis une unité de stockage vers ledit poste d'usinage, des moyens de positionnement et de maintien de ces pièces et des moyens d'évacuation pour évacuer lesdites pièces après leur usinage, dans lequel lesdits moyens de positionnement et de maintien de ces pièces dans ledit poste d'usinage comportent au moins un support rotatif magnétisable pour recevoir lesdites pièces pendant leur usinage.TECHNICAL FIELD The present invention relates to a device for automatically feeding a machine tool machining station into mechanical parts, these parts being notably inner or outer rings of bearings and said machining station being in particular a grinding machine of the machine. raceway of these bearing rings, said feed device comprising transfer means for conveying said parts from a storage unit to said machining station, means for positioning and holding these parts and means for discharge to evacuate said parts after their machining, wherein said means for positioning and holding these parts in said machining station comprise at least one magnetizable rotating support for receiving said parts during their machining.
Technique antérieurePrior art
Les dispositifs conventionnels d'alimentation en pièces mécaniques de ce type comportent habituellement des organes robotisés de préhension et de transfert desdites pièces d'un magasin de stockage vers un organe récepteur dans lequel les pièces sont maintenues en position pendant une phase d'usinage. Les organes de- préhension et de transfert comportent des bras mobiles qui sont commandés de manière à déplacer les pièces à usiner pour les amener dans la zone d'usinage puis à les évacuer de cette zone après leur traitement.Conventional devices for supplying mechanical parts of this type usually comprise robotic gripping devices and transfer of said parts from a storage magazine to a receiving member in which the parts are held in position during a machining phase. The gripping and transfer members comprise movable arms which are controlled so as to move the workpieces to bring them into the machining zone and then to evacuate them from this zone after their treatment.
Ces organes robotisés de préhension et de transfert ainsi que les bras mobiles sont adaptés à la géométrie et aux dimensions des pièces à usiner. De ce fait, pour chaque type de pièces, un jeu d'outillages spécifiques complexes doit être réalisé et ces outillages doivent être changés et nécessitent un réglage compliqué chaque fois que l'opérateur souhaite modifier les pièces à usiner. Non seulement le coût des outillages dont il faut disposer est élevé mais, de plus, le temps requis pour les installer et les régler engendre un coût indirect qui s'ajoute au coût de fabrication.These robotic gripping and transfer devices and the movable arms are adapted to the geometry and dimensions of the workpieces. Therefore, for each type of parts, a set of complex specific tools must be made and these tools must be changed and require a complicated adjustment each time the operator wants to modify the workpieces. Not only is the cost of the tools needed to be high, but moreover, the time required to install and adjust them generates an indirect cost which is added to the cost of manufacture.
Exposé de l'invention La présente invention se propose de pallier les inconvénients des dispositifs connus en offrant un dispositif d'alimentation automatique en pièces mécaniques qui est facile à fabriquer et de construction économique, qui peut être utilisé pour un grand nombre de types de pièces à usiner, réduisant ainsi le nombre de jeux d'outillages complexes et difficiles à régler, et qui est adaptable à une large palette de machines-outils, notamment à un grand nombre de marques de rectifieuses de bagues de roulements.DISCLOSURE OF THE INVENTION The present invention proposes to overcome the drawbacks of known devices by offering an automatic mechanical parts feeding device which is easy to manufacture and of economical construction, which can be used for a large number of types of parts. to machine, thereby reducing the number of complex and difficult to adjust tool sets, and which is adaptable to a wide range of machine tools, including a large number of brands of bearing ring grinders.
Ce but est atteint par le dispositif tel que défini en préambule et caractérisé en ce que lesdits moyens de positionnement et de maintien comportent au moins une surface de support intermédiaire sur laquelle lesdites pièces sont fixées par effet magnétique pour les amener vers ledit poste d'usinage, un premier organe de préhension pour pousser lesdites pièces successivement de ladite surface de support intermédiaire sur ledit support rotatif magnétisable et un second organe de préhension pour retirer lesdites pièces dudit support rotatif magnétisable après leur usinage en vue de leur évacuation.This object is achieved by the device as defined in the preamble and characterized in that said positioning and holding means comprise at least one intermediate support surface on which said parts are fixed by magnetic effect to bring them to said machining station. , a first gripping member for urging said pieces successively from said intermediate support surface onto said magnetizable rotating support and a second gripping member for withdrawing said parts from said magnetisable rotating support after their machining with a view to their evacuation.
Selon un premier mode de réalisation avantageux du dispositif selon l'invention, lesdits moyens de transfert pour acheminer lesdites pièces depuis une unité de stockage vers ledit poste d'usinage comportent au moins un ruban transporteur qui se déplace dans un champ magnétique agencé pour fixer et maintenir en position lesdites pièces à la surface de ce ruban transporteur.According to a first advantageous embodiment of the device according to the invention, said transfer means for conveying said pieces from a storage unit to said machining station comprise at least one conveyor belt which moves in a magnetic field arranged to fix and maintain in position said parts on the surface of this conveyor belt.
Selon d'autres formes de réalisation, ledit ruban transporteur peut être un ruban magnétique ou un ruban magnétisable. De façon avantageuse, ledit que ruban transporteur peut comporter un secteur sensiblement rectiligne et un secteur incurvé disposé dans le prolongement dudit secteur sensiblement rectiligne.In other embodiments, said conveyor ribbon may be a magnetic tape or a magnetizable tape. Advantageously, said conveyor belt may comprise a substantially rectilinear sector and a curved sector disposed in the extension of said substantially rectilinear sector.
De façon préférée, ladite surface de support intermédiaire sur laquelle lesdites pièces sont fixées par effet magnétique est disposée en aval dudit secteur incurvé et en amont dudit support rotatif magnétisable.Preferably, said intermediate support surface on which said parts are fixed by magnetic effect is disposed downstream of said curved sector and upstream of said magnetizable rotary support.
Selon une première variante bien adaptée au rectifiage des bagues de roulements, ledit premier organe de préhension comporte un bras équipé à son extrémité d'un doigt et un actionneur agencé pour déplacer linéairement ledit bras et ledit second organe de préhension comporte également un bras équipé à son extrémité d'un doigt et un actionneur agencé pour déplacer linéairement ledit bras.According to a first variant which is well adapted to the grinding of the bearing rings, said first gripping member comprises an arm equipped at its end with a finger and an actuator arranged to linearly move said arm and said second gripping member also comprises an arm equipped with its end of a finger and an actuator arranged to linearly move said arm.
Selon une variante adaptée à des pièces à usiner ne comportant pas de dégagement intérieur, ledit premier organe de préhension comporte avantageusement un bras équipé à son extrémité d'un poussoir ou d'une palette et un actionneur agencé pour déplacer linéairement ledit bras et ledit second organe de préhension comporte un bras équipé à son extrémité d'un racloir ou d'une palette et un actionneur agencé pour déplacer linéairement ledit bras.According to a variant adapted to workpieces having no internal clearance, said first gripping member advantageously comprises an arm equipped at its end with a pusher or a pallet and an actuator arranged to linearly move said arm and said second gripping member comprises an arm equipped at its end with a scraper or a pallet and an actuator arranged to linearly move said arm.
De façon particulièrement avantageuse, lesdits doigts ou lesdites palettes sont articulés respectivement autour d'axes sollicités dans une direction par des moyens élastiques contre un arrêt et libres de pivoter dans la direction opposée à rencontre desdits moyens élastiques sous l'effet d'une contrainte.Particularly advantageously, said fingers or pallets are respectively articulated about axes biased in one direction by elastic means against a stop and free to pivot in the opposite direction to meet said elastic means under the effect of a constraint.
En outre, les doigts ou palettes des deux organes de préhension, sont agencés pour pivoter sous l'effet d'une contrainte à rencontre desdits moyens élastiques dans des directions respectives opposées. Selon une autre variante de réalisation, les doigts peuvent être associés à des moyens d'actionnement dynamiques agencés pour les faire pivoter autour de leur axe respectif.In addition, the fingers or palettes of the two gripping members are arranged to pivot under the effect of a stress against said elastic means in respective opposite directions. According to another variant embodiment, the fingers may be associated with dynamic actuation means arranged to rotate them about their respective axes.
Description sommaire des dessinsBrief description of the drawings
La présente invention sera mieux comprise et ses avantages ressortiront mieux de la description suivante d'un mode de réalisation préféré en référence aux dessins annexés dans lesquels:The present invention will be better understood and its advantages will become more apparent from the following description of a preferred embodiment with reference to the accompanying drawings in which:
la figure 1 représente une vue schématique en perspective d'une forme de réalisation préférée • du dispositif d'alimentation de pièces de mécanique, notamment de bagues de roulements, selon l'invention,1 shows a schematic perspective view of a preferred embodiment of the feeder • mechanical parts, in particular of bearing rings according to the invention,
la figure 2 représente une vue partielle en élévation latérale du dispositif de la figure 1 ,FIG. 2 represents a partial side elevational view of the device of FIG. 1,
la figure 3 représente une vue partielle en élévation frontale du dispositif de la figure 1 illustrant une première phase opératoire de ce dispositif,FIG. 3 represents a partial front elevational view of the device of FIG. 1 illustrating a first operative phase of this device,
la figure 4, représente une vue partielle en élévation frontale du dispositif de la figure 1 illustrant une deuxième phase opératoire de ce dispositif, pendant l'usinage d'une pièce,FIG. 4 represents a partial front elevational view of the device of FIG. 1 illustrating a second operating phase of this device, during the machining of a part,
la figure 5, représente une vue partielle en élévation frontale du dispositif de la figure 1 illustrant une troisième phase opératoire de ce dispositif, après l'usinage d'une pièce, etFIG. 5 represents a partial front elevational view of the device of FIG. 1 illustrating a third operating phase of this device, after the machining of a part, and
la figure 6, représente une vue partielle en élévation frontale du dispositif de la figure 1 illustrant une quatrième phase opératoire de ce dispositif, pendant l'évacuation d'une pièce. Meilleure manière de réaliser l'inventionFigure 6 shows a partial front elevational view of the device of Figure 1 illustrating a fourth phase of operation of this device, during the evacuation of a room. Best way to realize the invention
En référence aux figures, et notamment aux figures 1 et 2, le dispositif 10 selon l'invention pour l'alimentation automatique en pièces de mécanique 11 d'un poste d'usinage 12 de machine-outil est représenté dans une utilisation particulière dans laquelle ces pièces de mécanique 11 sont des bagues intérieures de roulements et le poste d'usinage 12 de la machine-outil (non représentée) sur laquelle ce dispositif d'alimentation automatique 10 est destiné à être monté est une rectifieuse du chemin de roulement de ces bagues de roulements. La fonction de ce dispositif 10 est d'acheminer de façon automatique les pièces de mécanique 11 , à savoir les bagues de roulements intérieures (mais qui pourraient également être des bagues de roulements extérieures), vers le poste d'usinage 12 comportant principalement une meule de rectifiage 13.With reference to the figures, and in particular to FIGS. 1 and 2, the device 10 according to the invention for the automatic supply of mechanical parts 11 of a machining station 12 of the machine tool is represented in a particular use in which these mechanical parts 11 are inner rings of bearings and the machining station 12 of the machine tool (not shown) on which this automatic feeding device 10 is intended to be mounted is a grinding machine of the raceway of these bearing rings. The function of this device 10 is to automatically route the mechanical parts 11, namely the inner bearing rings (but which could also be outer bearing rings) to the machining station 12 mainly comprising a grinding wheel of grinding 13.
Ce dispositif d'alimentation automatique 10 comporte des moyens de transfert 14 pour acheminer lesdites pièces 11 depuis une unité de stockage (non représentée) vers ledit poste d'usinage 12. Ces moyens de transfert 14 comportent au moins une surface de support qui comprend, dans la forme de réalisation décrite, un ruban transporteur 15 réalisé sous la forme d'un secteur sensiblement rectiligne 15a et d'un secteur 15b incurvé selon un angle d'environ 90° disposé dans le prolongement du secteur rectiligne 15a. En aval du secteur incurvé 15b et dans son prolongement, se situe une plaque intermédiaire de maintien 16 entre le secteur incurvé 15b et un support rotatif magnétisable 17, constitué de préférence d'une douille d'entraînement qui est pourvue de moyens électromagnétiques pour assurer la tenue par effet magnétique d'une pièce à usiner 11 pendant son usinage. Cette plaque intermédiaire de maintien 16 fait également partie de ladite surface de support mentionnée ci-dessus.This automatic feeding device 10 comprises transfer means 14 for conveying said pieces 11 from a storage unit (not shown) to said machining station 12. These transfer means 14 comprise at least one support surface which comprises, in the embodiment described, a conveyor belt 15 made in the form of a substantially rectilinear sector 15a and a sector 15b curved at an angle of about 90 ° disposed in the extension of the rectilinear sector 15a. Downstream of the curved sector 15b and in its extension, there is an intermediate holding plate 16 between the curved sector 15b and a magnetizable rotating support 17, preferably consisting of a drive sleeve which is provided with electromagnetic means to provide the held by magnetic effect of a workpiece 11 during its machining. This intermediate holding plate 16 is also part of said support surface mentioned above.
Ledit ruban transporteur 15 est situé dans un champ magnétique, ou est lui- même magnétique ou magnétisable, afin que les pièces à usiner soient maintenues sur sa surface par effet magnétique. Ce champ magnétique est par exemple créé par une ou plusieurs rampes d'aimants permanents qui sont montés en dessous du ruban. Il pourrait aussi s'agir d'électroaimants actionnés de manière à adapter la puissance du champ magnétique en fonction de la nature et de la composition de la matière des pièces à traiter.Said conveyor belt 15 is located in a magnetic field, or is itself magnetic or magnetizable, so that the workpieces are held on its surface by magnetic effect. This magnetic field is by example created by one or more ramps of permanent magnets that are mounted below the ribbon. It could also be electromagnets actuated to adapt the power of the magnetic field depending on the nature and composition of the material of the parts to be treated.
Les moyens de transfert 14 comportent en outre un premier organe de préhension 18 pour pousser lesdites pièces 11 successivement de ladite plaque intermédiaire de maintien 16 sur ledit support rotatif magnétisable 17 et un second organe de préhension 19 pour retirer lesdites pièces 11 dudit support rotatif magnétisable 17 après leur usinage en vue de leur évacuation. Le support rotatif magnétisable 17 est entraîné en rotation par un moteur approprié (non représenté) et la pièce à usiner 11 est retenue sur ce support par un champ magnétique généré par un électroaimant (non représenté) suffisamment puissant pour la maintenir en position. La pièce à usiner, qui est plaquée contre le support rotatif magnétisable 17, se trouve en appui contre deux butées fixes de positionnement 20, disposées sensiblement perpendiculairement l'une par rapport à l'autre. Comme cela sera décrit plus en détail par la suite, la meule de rectifiage 13 exerce une poussée sur la pièce à usiner 11 maintenue sur le support rotatif magnétisable 17 afin qu'elle soit appuyée sur les deux butées fixes de positionnement 20.The transfer means 14 further comprise a first gripping member 18 for pushing said parts 11 successively from said intermediate holding plate 16 onto said magnetizable rotating support 17 and a second gripping member 19 to remove said parts 11 from said magnetizable rotating support 17 after machining for disposal. The magnetizable rotating support 17 is rotated by a suitable motor (not shown) and the workpiece 11 is retained on this support by a magnetic field generated by an electromagnet (not shown) sufficiently powerful to hold it in position. The workpiece, which is pressed against the magnetizable rotating support 17, bears against two fixed positioning stops 20, arranged substantially perpendicular to each other. As will be described in more detail below, the grinding wheel 13 exerts a thrust on the workpiece 11 held on the magnetizable rotating support 17 so that it is supported on the two fixed positioning stops 20.
Le premier organe de préhension 18 et le second organe de préhension 19 comportent chacun un bras, respectivement 18a et 19a, équipé à son extrémité d'un doigt, respectivement 18b et 19b, et qui est actionné par un actionneur linéaire, respectivement 18c et 19c. Ces actionneurs linéaires peuvent être des vérins hydrauliques ou pneumatiques ou des mécanismes d'entraînement électriques comme par exemple des moteurs linéaires. La position des bras 18a et 19a est déterminée pour que les pièces à usiner 11 puissent être déplacées, d'une part, entre une position d'attente sur la plaque intermédiaire de maintien 16 et le support rotatif magnétisable 17 avant leur usinage et, d'autre part, de leur position de traitement, en l'occurrence de rectifiage par la meule de rectifiage 13, vers une zone d'évacuation. Les doigts 18b et 19b sont respectivement fixés à l'extrémité des bras 18a et 19a et sont respectivement articulés sur un axe, respectivement 18d et 19d. De plus, selon une forme de réalisation avantageuse, ils sont sollicités dans une direction contre un arrêt par des moyens élastiques, tels que par exemple un ressort de poussée (non représenté) et libres de se replier sous l'effet d'une contrainte dans la direction opposée, par exemple pour passer un obstacle comme le bord d'une bague de roulement avant ou après l'opération de rectifiage. Toutefois, selon une autre forme de réalisation, ces doigts peuvent être commandés par des moyens d'actionnement dynamique, par exemple par des moyens pneumatiques, électriques, électromagnétiques ou par tout autre moyen approprié. Les deux organes de préhension 18 et 19 agissent en sens contraire. Le premier est destiné à pousser une pièce 11 et le second est destiné à tirer la pièce après le rectifiage. Leur mode de fonctionnement sera expliqué plus en détail en référence aux figures 3 à 7 qui illustrent plus en détail la cinématique des différents composants du système.The first gripping member 18 and the second gripping member 19 each comprise an arm, respectively 18a and 19a, equipped at its end with a finger, respectively 18b and 19b, and which is actuated by a linear actuator 18c and 19c respectively. . These linear actuators may be hydraulic or pneumatic cylinders or electric drive mechanisms such as linear motors. The position of the arms 18a and 19a is determined so that the workpieces 11 can be moved, on the one hand, between a standby position on the intermediate holding plate 16 and the magnetizable rotating support 17 before they are machined, and on the other hand, from their processing position, in this case rectification by the grinding wheel 13, to an evacuation zone. The fingers 18b and 19b are respectively fixed to the end of the arms 18a and 19a and are respectively articulated on an axis, respectively 18d and 19d. In addition, according to an advantageous embodiment, they are biased in one direction against a stop by elastic means, such as for example a thrust spring (not shown) and free to fold under the effect of a stress in the opposite direction, for example to pass an obstacle such as the edge of a bearing ring before or after the grinding operation. However, according to another embodiment, these fingers can be controlled by dynamic actuation means, for example by pneumatic, electric, electromagnetic or any other suitable means. The two gripping members 18 and 19 act in opposite directions. The first is intended to push a workpiece 11 and the second is intended to pull the workpiece after grinding. Their mode of operation will be explained in more detail with reference to FIGS. 3 to 7 which illustrate in more detail the kinematics of the various components of the system.
Une première phase opératoire du dispositif est représentée par la figure 3. Le premier organe de préhension 18 est dans une position d'attente, c'est-à-dire que le bras 18a est retiré vers le haut et le doigt 18b est en butée et engagé à l'intérieur de la pièce 11 , en l'occurrence la bague de roulement, qui est en attente sur la plaque intermédiaire de maintien 16 pour être rectifiée.A first operative phase of the device is shown in FIG. 3. The first gripping member 18 is in a waiting position, that is to say the arm 18a is withdrawn upwards and the finger 18b is in abutment and engaged inside the part 11, in this case the bearing ring, which is waiting on the intermediate holding plate 16 to be ground.
Une deuxième phase est représentée par la figure 4. Le premier organe de préhension 18 a actionné le bras 18a vers le bas au moyen de l'actionneur linéaire 18c et le doigt 18b, engagé dans l'ouverture centrale de la bague de roulement, a déplacé cette dernière en direction du support rotatif magnétisable 17, en appui contre les deux butées fixes de positionnement 20. L'électroaimant du support rotatif magnétisable 17 est alimenté pour que ce support devienne magnétique et maintienne fermement en position la pièce à usiner. La figure 5 représente la phase suivante au cours de laquelle le bras 18a se retire de sa position en remontant vers sa position d'attente où le doigt 18b pénètre dans l'ouverture centrale de la bague suivante à usiner. Au cours de cette remontée du bras 18a, le doigt 18b se déplie autour de son axe 18d en s'opposant à la force de rappel qui tend à le mettre en butée. De cette manière, ce doigt 18b glisse par-dessus la plaque intermédiaire de maintien 16 de façon automatique, sans nécessiter aucun mécanisme d'entraînement dynamique. Simultanément, la meule de rectifiage 13 entre en fonction après un déplacement latéral qui la met en contact avec la pièce 11 à usiner. Pour gagner du temps, les déplacements de la pièce 11 et de la meule 13 sont quasiment simultanés. La force exercée par la meule 13 maintient la pièce 11 en appui contre les deux butées fixes de positionnement 20. Le rectifiage s'effectue pendant une durée donnée qui est déterminée, soit par avance de façon programmée, soit en fonction de l'état de Ia pièce dont la géométrie est contrôlée au cours de l'usinage.A second phase is shown in FIG. 4. The first gripping member 18 has actuated the arm 18a downwards by means of the linear actuator 18c and the finger 18b, engaged in the central opening of the rolling ring, has the electromagnet of the magnetizable rotating support 17 is energized so that the support becomes magnetic and maintains firmly in position the workpiece. Figure 5 shows the next phase in which the arm 18a withdraws from its position back to its waiting position where the finger 18b enters the central opening of the next ring to be machined. During this raising of the arm 18a, the finger 18b unfolds around its axis 18d by opposing the restoring force which tends to abut it. In this way, this finger 18b slides over the intermediate holding plate 16 automatically, without requiring any dynamic drive mechanism. Simultaneously, the grinding wheel 13 comes into operation after a lateral movement which puts it in contact with the workpiece 11 to be machined. To save time, the movements of the part 11 and the wheel 13 are almost simultaneous. The force exerted by the grinding wheel 13 keeps the workpiece 11 in abutment against the two fixed positioning stops 20. The grinding is carried out for a given duration which is determined, either in advance in a programmed manner, or according to the state of operation. The part whose geometry is controlled during machining.
La figue 6 illustre le mode de fonctionnement du second organe de préhension 19 pour retirer lesdites pièces 11. L'actionneur 19c déplace le bras 19a vers la pièce 11 qui se trouve encore sur le support rotatif magnétisable 17 après le retrait par déplacement latéral de la meule 13. Le doigt 19b se replie en s'opposant à une force exercée par un organe de rappel (non représenté) qui tend à le mettre en butée, pour lui permettre de rentrer dans l'évidemment central de la bague.Fig. 6 illustrates the operating mode of the second gripping member 19 for removing said parts 11. The actuator 19c moves the arm 19a towards the part 11 which is still on the magnetizable rotating support 17 after the lateral displacement removal of the grinding wheel 13. The finger 19b is folded by opposing a force exerted by a return member (not shown) which tends to abut it, to allow it to enter the central recess of the ring.
A ce moment, le doigt 19b revient en butée et l'actionneur 19c retire le bras 19a vers le haut en entraînant la pièce 11 rectifiée vers une position d'évacuation, ce qui a pour effet de libérer la place pour que ledit premier organe de préhension 18 puisse commencer un nouveau cycle de mise en place d'une pièce à usiner 11 , comme le montre Ia figure 7. L'évacuation de la pièce 11 usinée n'est pas montrée plus en détail. Cette évacuation peut être obtenue par la simple chute par gravitation de la pièce 11 lorsque le doigt 19b la retire de la plaque intermédiaire de maintien 16. Elle peut tomber directement dans un conteneur de stockage ou sur une goulotte d'évacuation ou sur tout autre dispositif de transport des pièces, notamment sur un tapis transporteur, qui les amène vers une station d'assemblage de roulements.At this moment, the finger 19b comes back into abutment and the actuator 19c removes the arm 19a upwards by driving the rectified part 11 to an evacuation position, which has the effect of freeing up the space for said first body The prehension 18 can begin a new cycle of placing a workpiece 11, as shown in FIG. 7. The evacuation of the machined workpiece 11 is not shown in more detail. This evacuation can be obtained by the simple gravitational drop of the part 11 when the finger 19b removes it from the intermediate holding plate 16. It can fall directly into a storage container or on a discharge chute or any other device for transporting parts, in particular on a conveyor belt, which brings them to a bearing assembly station.
La présente invention présente de nombreux avantages pour toutes les pièces magnétisables à usiner et en particulier pour les bagues de roulements à rectifier. Le déplacement et le positionnement des pièces font appel à l'effet magnétique. L'amenée des pièces à usiner ainsi que leur évacuation sont effectuées par des organes de préhension dont la qualité essentielle est d'être universels. En effet, les doigts de ces organes de préhension s'engagent de la même manière dans des bagues de 12mm de diamètre que dans des bagues de 80mm de diamètre. La particularité du dispositif selon l'invention est de ne pas nécessiter d'outillage à remplacer et à régler chaque fois que la machine de rectifiage doit rectifier un autre type de bague. Par conséquent il permet de réduire le temps mort entre deux programmes de rectifiage de bagues de roulements de gabarits différents. D'où une réduction des coûts aussi bien à l'achat qu'à l'exploitation des machines.The present invention has many advantages for all the magnetizable parts to be machined and in particular for the bearing rings to grind. The movement and positioning of parts use the magnetic effect. The supply of the workpieces and their evacuation are performed by gripping members whose essential quality is to be universal. Indeed, the fingers of these grippers engage in the same way in rings of 12mm diameter than in rings of 80mm diameter. The particularity of the device according to the invention is not to require tools to replace and adjust each time the grinding machine must grind another type of ring. Consequently, it makes it possible to reduce the dead time between two grinding programs for bearing rings of different sizes. Hence a reduction in costs both for the purchase and the operation of the machines.
En outre, le dispositif selon l'invention peut être adapté à toutes les machines de rectifiage de roulements, ou à d'autres types de machines d'usinage de pièces de mécanique. En effet, le doigt qui entre dans l'évidemment central des bagues pourrait être remplacé par un poussoir, lorsque la pièce à usiner ne présente pas de dégagement central. Dans ce cas, le doigt 18b du premier organe de préhension 18 sera remplacé par un poussoir ou une palette qui se déplie dans un sens et se bloque en butée dans le sens opposé. De façon similaire, le second organe de préhension 19 peut également être équipé d'un racloir ou d'une palette, en remplacement du doigt 19b, qui se déplie dans un sens, à savoir le sens opposé à celui du poussoir du premier organe de préhension, et se bloque en butée dans le sens opposé. In addition, the device according to the invention can be adapted to all bearing grinding machines, or to other types of machines for machining mechanical parts. Indeed, the finger that enters the central recess of the rings could be replaced by a pusher, when the workpiece does not have a central clearance. In this case, the finger 18b of the first gripping member 18 will be replaced by a pusher or a pallet which unfolds in one direction and stops in abutment in the opposite direction. Similarly, the second gripping member 19 can also be equipped with a scraper or a pallet, replacing the finger 19b, which unfolds in one direction, namely the direction opposite to that of the first member of the pusher. gripping, and hangs in abutment in the opposite direction.

Claims

REVENDICATIONS
1. Dispositif d'alimentation automatique d'un poste d'usinage de machine- outil en pièces de mécanique (11), ces pièces étant notamment des bagues intérieures ou extérieures de roulements et Ie poste d'usinage (12) étant notamment une rectifieuse du chemin de roulement de ces bagues de roulements, ledit dispositif d'alimentation (10) comportant des moyens de transfert (14) pour acheminer lesdites pièces (11) depuis une unité de stockage vers ledit poste d'usinage (12), des moyens de positionnement et de maintien (16, 17) de ces pièces (11) et des moyens d'évacuation pour évacuer lesdites pièces après leur usinage, dans lequel lesdits moyens de positionnement et de maintien (16, 17) de ces pièces dans ledit poste d'usinage comportent au moins un support rotatif magnétisable (17) pour recevoir lesdites pièces (11) pendant leur usinage, caractérisé en ce que lesdits moyens de positionnement et de maintien comportent au moins une surface de support intermédiaire (16) sur laquelle lesdites pièces sont fixées par effet magnétique pour les amener vers ledit poste d'usinage, un premier organe de préhension (18) pour pousser lesdites pièces (11) successivement de ladite surface de support intermédiaire (16) sur ledit support rotatif magnétisable (17) et un second organe de préhension (19) pour retirer lesdites pièces (11) dudit support rotatif magnétisable (17) après leur usinage en vue de leur évacuation.1. Automatic feeding device of a machining station of machine tool mechanical parts (11), these parts being in particular inner or outer rings of bearings and the machining station (12) being in particular a grinding machine of the raceway of these bearing rings, said feed device (10) comprising transfer means (14) for conveying said parts (11) from a storage unit to said machining station (12), means positioning and holding (16, 17) of these parts (11) and discharge means for discharging said parts after their machining, wherein said positioning and holding means (16, 17) of these parts in said station of machining comprise at least one magnetizable rotatable support (17) for receiving said parts (11) during their machining, characterized in that said positioning and holding means comprise at least one intermediate support surface (16) on which wherein said parts are magnetically fixed to bring them to said machining station, a first gripping member (18) for urging said pieces (11) successively from said intermediate support surface (16) onto said magnetisable rotary support ( 17) and a second gripping member (19) for removing said parts (11) from said magnetisable rotating support (17) after machining them for disposal.
2. Dispositif selon la revendication 1 , caractérisé en ce que lesdits moyens de transfert (14) pour acheminer lesdites pièces (11) depuis une unité de stockage vers ledit poste d'usinage (12) comportent au moins un ruban transporteur (15) qui se déplace dans un champ magnétique agencé pour fixer et maintenir en position lesdites pièces (11) à la surface de ce ruban transporteur.2. Device according to claim 1, characterized in that said transfer means (14) for conveying said pieces (11) from a storage unit to said machining station (12) comprise at least one conveyor belt (15) which moves in a magnetic field arranged to fix and hold in position said parts (11) on the surface of this conveyor ribbon.
3. Dispositif selon la revendication 2, caractérisé en ce que ledit ruban transporteur (15) est un ruban magnétique. 3. Device according to claim 2, characterized in that said conveyor tape (15) is a magnetic tape.
4. Dispositif selon la revendication 2, caractérisé en ce que ledit ruban transporteur (15) est un ruban magnétisable.4. Device according to claim 2, characterized in that said conveyor tape (15) is a magnetizable tape.
5. Dispositif selon la revendication 2, caractérisé en ce ledit que ruban transporteur (15) comporte un secteur sensiblement rectiligne (15a) et un secteur incurvé (15b) disposé dans le prolongement dudit secteur sensiblement rectiligne (15a).5. Device according to claim 2, characterized in that said conveyor belt (15) comprises a substantially rectilinear sector (15a) and a curved sector (15b) disposed in the extension of said substantially rectilinear sector (15a).
6. Dispositif selon la revendication 1 , caractérisé en ce que ladite surface de support intermédiaire (16) sur laquelle lesdites pièces (11) sont fixées par effet magnétique est disposée en aval dudit secteur incurvé (15b) et en amont dudit support rotatif magnétisable (17).6. Device according to claim 1, characterized in that said intermediate support surface (16) on which said parts (11) are fixed by magnetic effect is disposed downstream of said curved sector (15b) and upstream of said magnetizable rotary support ( 17).
7. Dispositif selon la revendication 1 , caractérisé en ledit premier organe de préhension (18) comporte un bras (18a) équipé à son extrémité d'un doigt (18b) et un actionneur (18c) agencé pour déplacer linéairement ledit bras (18a).7. Device according to claim 1, characterized in said first gripping member (18) comprises an arm (18a) equipped at its end with a finger (18b) and an actuator (18c) arranged for linearly moving said arm (18a). .
8. Dispositif selon la revendication 1 , caractérisé en ce ledit second organe de préhension (19) comporte un bras (19a) équipé à son extrémité d'un doigt (19b) et un actionneur (19c) agencé pour déplacer linéairement ledit bras (19a).8. Device according to claim 1, characterized in that said second gripping member (19) comprises an arm (19a) equipped at its end with a finger (19b) and an actuator (19c) arranged to linearly move said arm (19a). ).
9. Dispositif selon la revendication 1 , caractérisé en ce que ledit premier organe de préhension (18) comporte un bras (18a) équipé à son extrémité d'un poussoir ou d'une palette et un actionneur (18c) agencé pour déplacer linéairement ledit bras (18a).9. Device according to claim 1, characterized in that said first gripping member (18) comprises an arm (18a) equipped at its end with a pusher or a pallet and an actuator (18c) arranged to move linearly said arm (18a).
10. Dispositif selon la revendication 1 , caractérisé en ce que ledit second organe de préhension (19) comporte un bras (19a) équipé à son extrémité d'un racloir ou d'une palette et un actionneur (19c) agencé pour déplacer linéairement ledit bras (19a). 10. Device according to claim 1, characterized in that said second gripping member (19) comprises an arm (19a) equipped at its end with a scraper or a pallet and an actuator (19c) arranged to move linearly said arm (19a).
11. Dispositif selon les revendications 7 et 8, caractérisé en ce que lesdits doigts (18b, 19b) sont articulés respectivement autour d'axes (18d, 19d), sollicités dans une direction par des moyens élastiques contre un arrêt et libres de pivoter dans la direction opposée à rencontre desdits moyens élastiques sous l'effet d'une contrainte.11. Device according to claims 7 and 8, characterized in that said fingers (18b, 19b) are articulated respectively about axes (18d, 19d), biased in one direction by elastic means against a stop and free to rotate in the opposite direction meets said elastic means under the effect of a constraint.
12. Dispositif selon la revendication 11 , caractérisé en ce que les doigts (18b, 19b) sont agencés pour pivoter sous l'effet d'une contrainte à rencontre desdits moyens élastiques dans des directions respectives opposées.12. Device according to claim 11, characterized in that the fingers (18b, 19b) are arranged to pivot under the effect of a constraint against said elastic means in respective opposite directions.
13. Dispositif selon les revendications 7 et 8, caractérisé en ce que les doigts (18b, 19b) sont associés à des moyens d'actionnement dynamiques agencés pour les faire pivoter autour de leur axe (18d, 19d). 13. Device according to claims 7 and 8, characterized in that the fingers (18b, 19b) are associated with dynamic actuating means arranged to rotate about their axis (18d, 19d).
PCT/CH2007/000634 2006-12-19 2007-12-13 Device for automatically supplying a machining work station of a machine tool with mechanical parts WO2008074174A1 (en)

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CN105538060A (en) * 2016-02-24 2016-05-04 镇江精工轴承厂 Feeding mechanism in automatic grinding device for outer rings of bearings
CN105563248A (en) * 2016-01-25 2016-05-11 杭州正强万向节有限公司 Automatic feeding device for centerless grinding of candan universal joint shaft sleeves
CN105643376A (en) * 2016-01-25 2016-06-08 杭州正强万向节有限公司 Full-automatic external cylindrical grinding machine of medium-and-small-sized cardan joints
CN105666259A (en) * 2016-02-24 2016-06-15 镇江精工轴承厂 Feeding device of automatic grinding system for bearing outer rings
CN106395314A (en) * 2016-09-19 2017-02-15 宁波高新区敦和科技有限公司 Automatic feeding device for bearing inner ring
CN106584221A (en) * 2016-11-24 2017-04-26 贵州兴富祥立健机械有限公司 Automatic rod collection device
CN106826451A (en) * 2017-01-11 2017-06-13 苏州阿福机器人有限公司 Pipe fitting polishing streamline
WO2017204759A1 (en) 2016-05-26 2017-11-30 Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi Side face grinding system for bearing rings
CN107650253A (en) * 2017-10-31 2018-02-02 湖南航天磁电有限责任公司 Ferrite core magnetic sintering circuit is to grinding process automatic loading distribution system
CN108381370A (en) * 2018-04-20 2018-08-10 嘉善万得隆服饰辅料厂（普通合伙） A kind of Multifunctional polishing device and polishing method
CN108453615A (en) * 2018-04-20 2018-08-28 嘉善万得隆服饰辅料厂（普通合伙） A kind of multi-face polishing device and polishing method of tube-like piece
CN108789160A (en) * 2018-07-30 2018-11-13 江苏亚奥精密机械有限公司 Bearing race processing unit (plant)
CN109176242A (en) * 2018-09-07 2019-01-11 詹哲品 A kind of engine piston ring processing and manufacturing mold
CN109623620A (en) * 2019-01-17 2019-04-16 夏晓祥 A kind of bearing outer ring surface processing equipment equipped with feed discharging structure
WO2019077484A1 (en) * 2017-10-17 2019-04-25 Sahajanand Technologies Private Limited Automated gemstone feeding
CN109773609A (en) * 2019-01-24 2019-05-21 马鞍山市粤美金属制品科技实业有限公司 A kind of bearing of compressor processing refine processing unit and working method
CN109894936A (en) * 2019-02-18 2019-06-18 浙江机电职业技术学院 A kind of adaptive automatic grinding device of nonmagnetic bearings and application method
CN110064978A (en) * 2019-05-27 2019-07-30 南京工程学院 A kind of bearing inner race automatic loading and unloading device applied to bearing grinder
CN110466003A (en) * 2019-08-12 2019-11-19 百隆智能家居有限公司 A kind of timber production sanction panel device
CN110961994A (en) * 2019-11-25 2020-04-07 湖南美蓓达科技股份有限公司 Automatic feeding device for miniature bearing ring
CN110977637A (en) * 2019-11-20 2020-04-10 严传玉 Machining positioning device for manufacturing mechanical bearing
CN112809466A (en) * 2021-01-07 2021-05-18 中国航发哈尔滨轴承有限公司 Tool and method applied to grinding of inner surface of aviation bearing with large major diameter
CN113618552A (en) * 2021-08-26 2021-11-09 江西樟树市福铃内燃机配件有限公司 Machining device for valve lock plate
CN114559307A (en) * 2022-03-17 2022-05-31 江苏光扬轴承股份有限公司 Bearing inner ring polishing device capable of automatically adjusting size and adjusting method

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CN101620929B (en) * 2009-06-15 2011-07-20 桐乡市耀润电子有限公司 Magnetic ring automatic arrangement mechanism
CN101797710A (en) * 2010-03-25 2010-08-11 浙江工业大学 Repairing and grinding lathe of large-size rolling bearing channel
CN103506945A (en) * 2012-06-26 2014-01-15 南昌海立电器有限公司 Supporting frame special for internal grinding machine
CN103302584A (en) * 2013-06-27 2013-09-18 新乡莱必泰机械有限公司 Efficient forced transmission mechanism with linear and automatic workpiece loading and unloading functions
CN104648990A (en) * 2013-11-18 2015-05-27 慈溪市大道机械厂 Bearing inner/outer ring polishing machine and bearing inner/outer ring conveying mechanism
CN105856011A (en) * 2013-12-16 2016-08-17 海宁奇晟轴承有限公司 Bearing outer ring end surface polisher with adjusting mechanism
CN103737439A (en) * 2013-12-16 2014-04-23 海宁奇晟轴承有限公司 Polishing machine for outer ring end faces of bearings
CN105856011B (en) * 2013-12-16 2018-01-26 海宁奇晟轴承有限公司 The sander of bearing outer ring end face with governor motion
CN103894894A (en) * 2014-04-11 2014-07-02 上海师范大学 Circular machining system of centerless grinding machine for bearing machining
CN103894894B (en) * 2014-04-11 2016-03-16 上海师范大学 A kind of bearing machining centerless grinder cyclic process system
EP2937174A1 (en) * 2014-04-25 2015-10-28 Aktiebolaget SKF Grinding machine with liquid coolant injection nozzle
CN104440524A (en) * 2014-11-19 2015-03-25 贵州虹山虹飞轴承有限责任公司 Feeding device for bearing ring lapping
CN104440525A (en) * 2014-11-28 2015-03-25 江阴吉爱倍万达精工有限公司 Discharging device for bearing rings
CN104385071A (en) * 2014-12-03 2015-03-04 东莞精明五金科技有限公司 Feeding machine and method for first process of rough grinding of valve shafts
CN104385071B (en) * 2014-12-03 2017-06-06 东莞精明五金科技有限公司 Valve shaft roughly grinds one feeding device and charging method
CN105215799A (en) * 2015-10-30 2016-01-06 际华三五三四制衣有限公司 A kind of centerless grinder discharging machine
CN105563248A (en) * 2016-01-25 2016-05-11 杭州正强万向节有限公司 Automatic feeding device for centerless grinding of candan universal joint shaft sleeves
CN105643376A (en) * 2016-01-25 2016-06-08 杭州正强万向节有限公司 Full-automatic external cylindrical grinding machine of medium-and-small-sized cardan joints
CN105666259A (en) * 2016-02-24 2016-06-15 镇江精工轴承厂 Feeding device of automatic grinding system for bearing outer rings
CN105538060A (en) * 2016-02-24 2016-05-04 镇江精工轴承厂 Feeding mechanism in automatic grinding device for outer rings of bearings
WO2017204759A1 (en) 2016-05-26 2017-11-30 Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi Side face grinding system for bearing rings
CN106395314A (en) * 2016-09-19 2017-02-15 宁波高新区敦和科技有限公司 Automatic feeding device for bearing inner ring
CN106584221A (en) * 2016-11-24 2017-04-26 贵州兴富祥立健机械有限公司 Automatic rod collection device
CN106826451A (en) * 2017-01-11 2017-06-13 苏州阿福机器人有限公司 Pipe fitting polishing streamline
WO2019077484A1 (en) * 2017-10-17 2019-04-25 Sahajanand Technologies Private Limited Automated gemstone feeding
US11897088B2 (en) 2017-10-17 2024-02-13 Sahajanand Technologies Private Limited Automated gemstone feeding
CN107650253A (en) * 2017-10-31 2018-02-02 湖南航天磁电有限责任公司 Ferrite core magnetic sintering circuit is to grinding process automatic loading distribution system
CN107650253B (en) * 2017-10-31 2019-08-09 湖南航天磁电有限责任公司 Ferrite core magnetic sintering process is to grinding process automatic loading distribution system
CN108381370A (en) * 2018-04-20 2018-08-10 嘉善万得隆服饰辅料厂（普通合伙） A kind of Multifunctional polishing device and polishing method
CN108453615A (en) * 2018-04-20 2018-08-28 嘉善万得隆服饰辅料厂（普通合伙） A kind of multi-face polishing device and polishing method of tube-like piece
CN108381370B (en) * 2018-04-20 2020-05-15 嘉善万得隆服饰辅料厂（普通合伙） Multifunctional polishing device and polishing method
CN108789160A (en) * 2018-07-30 2018-11-13 江苏亚奥精密机械有限公司 Bearing race processing unit (plant)
CN109176242A (en) * 2018-09-07 2019-01-11 詹哲品 A kind of engine piston ring processing and manufacturing mold
CN109623620A (en) * 2019-01-17 2019-04-16 夏晓祥 A kind of bearing outer ring surface processing equipment equipped with feed discharging structure
CN109623620B (en) * 2019-01-17 2020-11-06 台州隆达科技有限公司 Bearing inner race surface treatment equipment with feed ejection of compact structure
CN109773609A (en) * 2019-01-24 2019-05-21 马鞍山市粤美金属制品科技实业有限公司 A kind of bearing of compressor processing refine processing unit and working method
CN109773609B (en) * 2019-01-24 2020-11-06 马鞍山市粤美金属制品科技实业有限公司 Finishing treatment device for machining compressor bearing and working method
CN109894936A (en) * 2019-02-18 2019-06-18 浙江机电职业技术学院 A kind of adaptive automatic grinding device of nonmagnetic bearings and application method
CN110064978A (en) * 2019-05-27 2019-07-30 南京工程学院 A kind of bearing inner race automatic loading and unloading device applied to bearing grinder
CN110064978B (en) * 2019-05-27 2023-10-13 南京工程学院 Automatic loading and unloading device applied to bearing inner ring of bearing grinding machine
CN110466003A (en) * 2019-08-12 2019-11-19 百隆智能家居有限公司 A kind of timber production sanction panel device
CN110977637A (en) * 2019-11-20 2020-04-10 严传玉 Machining positioning device for manufacturing mechanical bearing
CN110977637B (en) * 2019-11-20 2021-08-10 常山成鑫轴承有限公司 Machining positioning device for manufacturing mechanical bearing
CN110961994A (en) * 2019-11-25 2020-04-07 湖南美蓓达科技股份有限公司 Automatic feeding device for miniature bearing ring
CN112809466A (en) * 2021-01-07 2021-05-18 中国航发哈尔滨轴承有限公司 Tool and method applied to grinding of inner surface of aviation bearing with large major diameter
CN113618552A (en) * 2021-08-26 2021-11-09 江西樟树市福铃内燃机配件有限公司 Machining device for valve lock plate
CN114559307A (en) * 2022-03-17 2022-05-31 江苏光扬轴承股份有限公司 Bearing inner ring polishing device capable of automatically adjusting size and adjusting method
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