EP0053569A1 - Universal ergonomic sharpening machine - Google Patents

Universal ergonomic sharpening machine Download PDF

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Publication number
EP0053569A1
EP0053569A1 EP19810420179 EP81420179A EP0053569A1 EP 0053569 A1 EP0053569 A1 EP 0053569A1 EP 19810420179 EP19810420179 EP 19810420179 EP 81420179 A EP81420179 A EP 81420179A EP 0053569 A1 EP0053569 A1 EP 0053569A1
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EP
European Patent Office
Prior art keywords
carriage
bearing
arm
rotation
machine according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP19810420179
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German (de)
French (fr)
Inventor
Christian Flayac
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Avyac SA
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Avyac SA
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Publication date
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Publication of EP0053569A1 publication Critical patent/EP0053569A1/en
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    • 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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools

Definitions

  • the invention relates to a universal ergonomic sharpener.
  • a sharpening machine is said to be “universal” when it makes it possible to sharpen, with special accessories, milling cutters of all shapes and sizes, drills, normal or stepped, taps, reamers, prismatic tools for machine tools and all other cutting tools.
  • the frame of the machine supports, on the one hand, means for holding the tool to be sharpened, means resting on a carriage movable longitudinally, itself carried by a carriage displaceable transversely and able to pivot relative to the frame and, on the other hand, a spindle support assembly comprising means for holding, adjusting in position, and driving in rotation of a grinding wheel.
  • This spindle support assembly is, in general, constituted by a vertical column whose vertical position is adjustable relative to the frame, by a support linked to the column, but of adjustable angular position around a vertical axis, and by an arm which, connected to the support with the possibility of adjusting its angular position around 'a horizontal axis, carries a spindle suitable for receiving any type of grinding wheel.
  • the structure of current machines prevents the operator from sitting comfortably, even when it is only a question of monitoring the sharpening, which contributes to increasing fatigue.
  • the dispersion, in various zones of the machine, of the means for controlling the machining movements or of the adjusting means also forces the operator to take uncomfortable positions.
  • the object of the present invention is to provide a universal sharpening machine which considerably reduces operator fatigue and allows the operator to work either standing or sitting, whether right or left handed, disabled or not.
  • This machine is of the type composed of a frame provided with a fixed console and in the form of a tray, of a transverse carriage articulated vertically on the console, the rotation blocking means of which cross the latter, of a longitudinal carriage disposed on the transverse carriage and able to receive means for holding and positioning the tools to be sharpened, a vertical column adjustable in height relative to the frame and carrying a grinding wheel spindle and means for adjusting the angular position of spindle .
  • the articulation bearing of the transverse carriage is arranged at the front and in cantilever with respect to the frame, in the same way as another bearing which, projecting under the console and traversed by the means for blocking the carriage in rotation, pivot form for the end of a lever whose free end, protruding from the console, supports an articulated control panel, while the upper plane of the longitudinal carriage is situated at a distance from the ground between 1 and 1.2 meters, so that the work area is away from the ground by a distance between 1.15 and 1.5 meters
  • the arrangement of the carriages in the immediate vicinity of the operator facilitates their handling, both for adjustments and for sharpening, and their arrangement on a console allows the operator to work in a comfortable, while protected.
  • a console When seated, he can place his legs under this console and be at the same transverse distance from the work area as when he is standing o
  • This advantage combines with that resulting from the vertical position of the work area to considerably improve the position of the operator who works in conditions suited to his morphology, without strain on his muscles, therefore without the risk of painful stiffness
  • control panel articulated on a rotary lever relative to the console
  • this panel can always be placed in the immediate vicinity of the operator, whatever the position of the latter.
  • switchboard can either be placed to the right or to the left of the operator and present, in these two positions, the same distribution of command and control members. the machine, which prevents any operator disturbance following this change of position.
  • the block formed by the spindle and its motor variable speed drive is suspended with the interposition of an angled support, allowing in known manner, angular adjustments around axes, respectively horizontal and vertical, at the free end of a radial arm whose other end is arranged at the upper end of the movable column with, in known manner, the possibility of angular adjustment around the vertical axis.
  • the motorized spindle which has a universal orientation, can thus occupy very many positions, without, however, some of these moving it too far from the operator and obliging the latter to bend down to control the operation by More detailed ment, this arrangement makes it possible to obtain, for all the useful positions, a task-eye distance of the operator of the order of 0.35 meters improving the visual comfort of the operator without having to approach of the task, that is to say a distance of value much lower than that of 0.50 meter obtained with traditional sharpening machines.
  • the means controlling the longitudinal movement of the upper carriage are composed of two flywheels which are arranged laterally on one of the sides of the transverse carriage and on either side of the single flywheel controlling the movements of the latter.
  • the longitudinal carriage comprises, at its anterior end, a bearing for a bent rod, whose vertical branch is adjustable in height and in orientation, and whose horizontal branch supports an adjustable position elbow support.
  • This elbow support is intended to support the operator's elbow or forearm when the operator is performing long operations requiring actuation of the tool during sharpening.
  • the mark of one of the marking means indicating the angular position of the support of spindle around a vertical axis, is produced on a ring which, after unlocking, can pivot at the end of the arm of the column, is connected to means holding it, whatever the angular position of this arm, in the same relative position with the mark of one of the means for locating the angular position of the transverse carriage around an axis vertical.
  • the sharpening machine according to the invention allows, thanks to its structure, the relative arrangement of its components and the concentration, near the operator of its essential means of adjustment and control, to reduce fatigue. of the latter, but also the manufacturing downtime.
  • the doubling of the controls of the longitudinal carriage and the possibility of moving the control panel allows the operator to give these various organs the position that best suits him, whether he himself is right-handed or left-handed, disabled or not, seated or standing.
  • this sharpening machine is composed of a frame 2 comprising a guide bearing 3 for a vertical column 4, means carrying a spindle 6 and a carriage 7 movable transversely and carrying a carriage 8, movable longitudinally.
  • transverse 7 is mounted with the possibility of rotation about a vertical axis x'-x relative to the frame 2.
  • the longitudinal carriage 8, which is intended to receive the means 70 (FIGS. 8 and 9) carrying the tool to be sharpened, can be monolithic or include a false swiveling table facilitating adjustments for certain manufacturing.
  • the articulation bearing 2 allowing the transverse carriage 7 to pivot about the vertical axis x'-x, is arranged in cantilever with respect to the frame 2 in a console 10 projecting from the 'front of this frame. As shown in Figures 8 and 9, this console is semi-circular.
  • the part 12, constituting the bearing itself and which is linked to the console 10 is crossed by a vertical shaft 13 whose lower end 13a, projecting under the console, is threaded and cooperates with the means for controlling the blocking of the transverse carriage in rotation.
  • these means are constituted by a nut 11 secured to a control lever 11a. This lever, which is located below the console, is very accessible to the operator.
  • the stepped upper end 13a of this tree takes support, via a flange 14, on the base 15 of the transverse carriage 7.
  • This base is rotatably mounted relative to the part 12 with the interposition of a bearing 16 whose inner cage is mounted with greasy sliding on said part 12 and is supported on an elastic washer 17, itself supported on the part 12.
  • the shaft 13 is also slidably mounted in a bearing 18, projecting below the console 10, and around which the end 19a of a lever 19 can pivot, supporting, at its other end 19b, a control unit 200 L end 19b, which projects laterally from the console, forms a pivot allowing the housing 20 to rotate on itself by at least 180 °.
  • FIG. 3 shows that the means for guiding in rotation and for locking the transverse carriage 7 form a very compact assembly which makes it possible to give the console 10 a very high vertical position thanks to which it does not disturb the operator when he wishes take a seated working position, in which case his feet can rest on the height-adjustable footrest 21
  • this console allows the operator to place his legs undisturbed beneath him when he wishes to work seated
  • the distance a between the underside and the ground can have a value of the order of 0.85 to 0.95 meters and, in particular, 0.9 meters which is the ideal distance.
  • the compactness of the means for guiding in rotation and for locking the transverse carriage also makes it possible, given the small vertical size given to the two carriages, respectively transverse and longitudinal, to arrange the upper face 22 of the longitudinal carriage 8 at a distance b from the ground of between 1.1 and 1.2 meters 0
  • the work area is thus located at a distance e from the ground (fig.9) between 1.25 and 1.5 meters and of the order of 1m, 35
  • the distance between his eye and the task is of the order of Om, 35, that is to say corresponds substantially to the most comfortable distance for his perception eyepiece, without having to bend over, as is currently the case.
  • Figures 1 to 3 show that the means controlling the longitudinal movements of the carriage 8 are constituted by two flywheels 23a and 23b, arranged on either side of the transverse carriage, and near the anterior edge thereof. These two flywheels are arranged in front of two other flywheels 24a and 24b controlling the transverse movements of the carriage 7.These control means are thus within immediate reach of the operator, whatever the angular position given to the two carriages.
  • the longitudinal carriage comprises, at its anterior free end, a bearing 25 in which is mounted with the possibility of adjustment, both vertical and in orientation, the vertical branch 26a of a bent rod whose horizontal branch 26b supports an elbow support 27 , adjustable in position.
  • This elbow support which can thus occupy various angular or vertical positions relative to the upper face 22 of the longitudinal carriage 8, allows the operator to place his elbow when performing operations requiring manipulation of the tool during its sharpening.
  • Pin 6 forms a block with its variable speed drive motor. It is mounted with the possibility of angular adjustment around a horizontal axis y'-y relative to an angled support 30. The latter is itself mounted with possibility angular adjustment around a worm axis tical z'-z at the free end of an arm 32 carried by the column 4. This arm is also mounted with the possibility of angular adjustment around the vertical axis v'-v of the column 4.
  • the vertical plane containing the axis v'-v of rotation of the column and the vertical axis x'-x of rotation of the transverse carriage is also the transverse vertical median plane of the frame 2 and of the machine.
  • the motorized spindle 6 is integral with a base 33 which, provided with a scale 34, can pivot in a bore 35 formed at the end of the bent support 30.
  • This base is locked in rotation by a threaded rod 36 of which it is integral and the end of which passes through the rear face of the support 30 receives a locking nut 37.
  • This support 30 is itself linked to a base 38 freely rotatably mounted with interposition of bearings 39 on a vertical shaft 40. The lower end of this shaft is shouldered at 40a and is supported, with the interposition of a thrust ball bearing 42, on the lower face of the above-mentioned base "3 8.
  • the rear end of the arm 32 is articulated around a vertical shaft 50, which is mounted to rotate freely with the interposition of suitable bearings, in a part 52, fixed to the end of the column 4 of the frame.
  • the lower end of the shaft 50 is supported at 50a and is supported, with the interposition of a ball bearing 53, on the underside of the aforementioned part 52. of this shaft passes through the arm 32 and has a threaded end 54 intended to cooperate with locking control means constituted in this embodiment by a nut 55 secured to a control arm 56.
  • the shaft 50 is wedged in rotation relative to the arm 32 by a screw 57.
  • the arm 32 comprises means which, whatever its angular position, maintain in the same relative position one of the elements of the scale indicating the angular position of the spindle motorized 6 around the axis z'-z with one of the elements of the scale indicating the angular position of the carriage around the vertical axis x'-x.
  • these means are constituted by a flexible link, such as a metal strip or a cable 62, forming a loop around, respectively, the ring 45 and the part 52, a link whose ends, arranged in grooves, respectively 63 and 64, are fixed by screws 65 and 66.
  • a tensioner 67 placed in the middle of the arm 32, and accessible from the outside, makes it possible to adjust the tension of this link 620 Thanks to this arrangement, and as shown in FIG. 7, when the arm 32 is brought from position A to position B or to position C, the corresponding reference 71 at the zero of the graduation 46 of the ring 45, always keeps the same orientation with respect to its axis of articulation, that is to say remains in a vertical plane P1, P'1, p "1, which is always parallel to the vertical median plane P of the machine, plane containing the mark 72 for the graduation 73 for locating the angular position of the trolley versal 70
  • the vertical displacement means of the column 4 are constituted by a screw 75-nut 76 assembly which is arranged between the vertical axis v'-v of the column and the vertical axis x'-x of rotation of the carriage 2. More specifically, the screw 75 is linked in rotation to a reduction gear 77, itself driven by an electric motor not shown, while the nut 76 is wedged at the end of a projecting arm 78 laterally at the lower end of the column 4 and projecting from the latter in the direction of the axis of rotation of the carriages.
  • the shaft of the electric motor driving the reduction gear 77 is extended at each of its ends by rods 80 which, as shown in FIG. 2, each pass through the corresponding side walls of the frame 2 to receive a handwheel 82.
  • two handwheels, arranged on either side of the frame, allows the operator to carry out all of his manufacturing adjustments while staying on the same side of the machine, therefore without having to move too much.
  • the means for controlling the blocking of the support 30 relative to the arm 32, of the support 30 relative to the column 4 and of the carriage 2 relative to the console 10, means which, in the previous embodiments, consist of a nut actuable by a radial lever, can also be constituted by pneumatic means, an embodiment of which is shown in FIG. 6.
  • These means consist of a cylinder 85 capable of being fixed on the corresponding part of the machine and, by example, at the rear end of the arm 32.
  • This cylinder is divided into two compartments, respectively 86 and 87 by a waterproof membrane 88.
  • the chamber 86 is connected to a source of compressed air, by a pipe leading to the orifi this 89.
  • the chamber 87 contains a piston 90 which is attached by screwing to the threaded end of the corresponding control shaft and, for example, to the end 54 of the shaft 50 controlling the blocking of the rotation of the arm 32.
  • Elastic washers 92 of the "Belleville” type, bearing, on the one hand, on the bottom of the chamber 87 and, on the other hand, under the piston 90, tend to constantly press the latter against the membrane 88 .
  • the membrane 88 transmits the pressure it receives to the piston 90 which compresses the washers 92 and, by controlling the downward movement of the shaft 50, causes the arm 32 to be released. Conversely, as soon as the chamber 86 is no longer supplied with compressed air, the washers 92 become predominant and alone ensure the blocking of the shaft 50. This arrangement guarantees the blocking of the components of the machine in the event of compressed air supply failure.
  • control means which can be arranged on the shaft 50, on the shaft 40 or on the carriage blocking shaft 13, are advantageously actuated from the control unit 200 Under these conditions, all of the means of machine control and adjustment are within immediate reach of the operator, who therefore does not need to move, both for adjustment operations and for sharpening operations.
  • FIGS. 8 to 11 show that the structure of the means carrying the spindle, the cantilevered arrangement of the carriages, the carrying out of double control for the essential adjustment movements and the use of a control box articulated to the end of a lever make it possible to give the machine's organs an infinite number of relative positions, but above all to adapt these positions, on the one hand to the work to be performed and, on the other hand, to the morphology of the operator , whether the latter is valid or disabled, right-handed or left-handed, and whether he wishes to work standing or seated.
  • the operator can operate the tool holder 70 with the right hand having, on his left, the control unit 20 and the steering wheel 23a for longitudinal movement, while, when the machine is in the position shown in Figures 9 and 11, the operator can operate the tool holder 70 with the left hand having, on his right, the housing 20 and the steering wheel 23b.
  • the working area is located approximately 1.35 meters from the ground and 0.35 meters from the operator's eye, that is to say - say in a place allowing the operator to control the operation in progress without having to lean laterally or transversely, which reduces his fatigue, his nervous tension and increases his productivity.
  • the machine of Figures 1 to 11 requires the share. of current operators a modification of working habits so significant that it can lead to refusal to use the machine.
  • the work plan is lowered by an amount sufficient to favor the progressive adaptation of the users, without the distance between the eye and the work area being too large.
  • the distances a, b have values of the order of 0.8 and 1 meter so that the distance c, from the working area to the ground, i.e. between 1.15 and 1.5 meters and preferably around 1.25 meters.
  • the lever 19 carrying the control box 20 is composed of two telescopic elements 19', 19 ".
  • the one 19 ' is articulated below of the control lever 11a so as no longer to be hampered in its rotation by the gussets 10a connecting the console 10 to the frame.
  • the lever 19.1e frame 2 has cut angles 2a.
  • This machine also differs from the previous one by the arrangement of the handwheels 23'a-23'b of the longitudinal carriage 8. Indeed, these are arranged on one side of the transverse carriage 7 and on both sides Another of the single flywheel 24 controlling the movements of the latter.
  • This arrangement which reduces the manufacturing cost by eliminating a flywheel, allows, as in the previous embodiment, to unite all the commands at hand from the operator regardless of the angular position of the carriages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Handcart (AREA)

Abstract

This machine, which is intended for sharpening milling cutters or any other cutting tool, is composed of a fixed console (10) in the form of a plate, of two crossed carriages (7-8) and of a height- adjustable vertical column (4) carrying a grinding-wheel-holding spindle. In order to reduce the physical fatigue of the operator which results from having to lean forwards towards the working zone in order to reduce the distance between his eye and the working zone, and in order to enable him to work equally well standing up or sitting down and under good conditions, whether he be right-handed or left-handed, handicapped or non-handicapped, the bearing (9) for the articulation of the transverse carriage (7) is arranged in front of and overhanging the frame (2), whilst, on the one hand, the control table (20) is articulated at the free end of a lever (19) which is itself articulated beneath the plate and, on the other hand, the upper plane (22) of the longitudinal carriage (8) is situated at a distance from the ground which lies between 1 and 1.2 metres so that the working zone has a height which means that the operator does not have to lean forwards in order to adjust or check the sharpening operation. <IMAGE>

Description

L'invention concerne une affûteuse universelle ergonomique.The invention relates to a universal ergonomic sharpener.

Une machine à affûter est dite "universelle" lorsqu' elle permet d'affûter,moyennant des accessoires particuliers,des fraises de toutes formes et dimensions,des forets,normaux ou étagés,des tarauds,des alésoirs,des outils prismatiques pour machines-outils et tous autres outils coupants.A sharpening machine is said to be "universal" when it makes it possible to sharpen, with special accessories, milling cutters of all shapes and sizes, drills, normal or stepped, taps, reamers, prismatic tools for machine tools and all other cutting tools.

A cette fin,le bâti de la machine supporte,d'une part, des moyens de maintien de l'outil à affûter,moyens reposant sur un chariot déplaçable longitudinalement,lui-même porté par un chariot déplaçable transversalement et pouvant pivoter par rapport au bâti et,d'autre part,un ensemble support de broche comprenant des moyens de maintien,de réglage en position,et d'entrainement en rotation d'une meule.Cet ensemble support de broche est,en général,constitué par une colonne verticale dont la position verticale est réglable par rapport au bâti,par un support lié à la colonne,mais de position angulaire réglable autour d'un axe vertical,et par un bras qui,relié au support avec possibilité de réglage de sa position angulaire autour d'un axe horizontal,porte une broche apte à recevoir tout type de meule.To this end, the frame of the machine supports, on the one hand, means for holding the tool to be sharpened, means resting on a carriage movable longitudinally, itself carried by a carriage displaceable transversely and able to pivot relative to the frame and, on the other hand, a spindle support assembly comprising means for holding, adjusting in position, and driving in rotation of a grinding wheel. This spindle support assembly is, in general, constituted by a vertical column whose vertical position is adjustable relative to the frame, by a support linked to the column, but of adjustable angular position around a vertical axis, and by an arm which, connected to the support with the possibility of adjusting its angular position around 'a horizontal axis, carries a spindle suitable for receiving any type of grinding wheel.

Les machines actuelles assurent parfaitement les fonctions techniques pour lesquelles elles ont été conçues,mais sont génératrices de fatigue pour le personnel les utilisant.En effet,de par la structure de la machine, la zone de travail est située à une distance du sol de l'ordre de 0,90 à 1 mètre et est décalée vers l'arrière, de sorte que la distance entre cette zone et l'oeil de l'opérateur est de l'ordre de 0,45 à 0,5 mètre.Il en résulte que pour régler et contrôler l'opération d'affûtage, l'opérateur doit se pencher sur la machine,c'est-à-dire adopter une position peu adaptée à la morphologie humaine et génératrice d'inconfort et de courbaturéeToday's machines perfectly perform the technical functions for which they were designed, but generate fatigue for the personnel using them. Indeed, by the structure of the machine, the work area is located at a distance from the ground of the '' range from 0.90 to 1 meter and is shifted backwards, so that the distance between this area and the operator's eye is in the range of 0.45 to 0.5 meters. As a result, to adjust and control the sharpening operation, the operator must bend over the machine, that is to say, adopt a position that is poorly suited to human morphology and that generates discomfort and stiffness.

Par ailleurs,la structure des machines actuelles interdit à l'opérateur de s'asseoir confortablement,même lorsqu'il ne s'agit que d'effectuer des tâches de surveillance de l'affûtage,ce qui contribue à augmenter sa fatigue. Enfin,la dispersion,en diverses zones de la machine,des moyens de commande des mouvements d'usinage ou des moyens de réglage,oblige également l'opérateur à prendre des positions inconfortables.Furthermore, the structure of current machines prevents the operator from sitting comfortably, even when it is only a question of monitoring the sharpening, which contributes to increasing fatigue. Finally, the dispersion, in various zones of the machine, of the means for controlling the machining movements or of the adjusting means, also forces the operator to take uncomfortable positions.

La présente invention a pour but de fournir une machine à affûter universelle qui réduise considérablement la fatigue de l'opérateur et permette à celui-ci de travailler indifféremment debout ou assis,qu'il soit droitier ou gaucher,handicapé ou non.The object of the present invention is to provide a universal sharpening machine which considerably reduces operator fatigue and allows the operator to work either standing or sitting, whether right or left handed, disabled or not.

Cette machine est du type composé d'un bâti muni d'une console fixe et en forme de plateau,d'un chariot transversal articulé verticalement sur la console,et dont les moyens de blocage en rotation traversent cette dernière, d'un chariot longitudinal disposé sur le chariot transversal et apte à recevoir des moyens de maintien et de positionnement des outils à affûter,d'une colonne verticale réglable en hauteur par rapport au bâti et portant une broche porte-meule et des moyens de réglage de la position angulaire de la broche .This machine is of the type composed of a frame provided with a fixed console and in the form of a tray, of a transverse carriage articulated vertically on the console, the rotation blocking means of which cross the latter, of a longitudinal carriage disposed on the transverse carriage and able to receive means for holding and positioning the tools to be sharpened, a vertical column adjustable in height relative to the frame and carrying a grinding wheel spindle and means for adjusting the angular position of spindle .

Selon l'invention,le palier d'articulation du chariot transversal est disposé à l'avant et en porte-à-faux par rapport au bâti,au même titre qu'un autre palier qui, saillant sous la console et traversé par les moyens de blocage en rotation du chariot,forme pivot pour l'extrémité d'un levier dont l'extrémité libre,dépassant de la console,supporte un tableau de commande articulé,tandis que le plan supérieur du chariot longitudinal est situé à une distance du sol comprise entre 1 et 1,2 mètre,de manière que la zone de travail soit éloignée du sol d'une distance comprise entre 1,15 et 1,5 mètreAccording to the invention, the articulation bearing of the transverse carriage is arranged at the front and in cantilever with respect to the frame, in the same way as another bearing which, projecting under the console and traversed by the means for blocking the carriage in rotation, pivot form for the end of a lever whose free end, protruding from the console, supports an articulated control panel, while the upper plane of the longitudinal carriage is situated at a distance from the ground between 1 and 1.2 meters, so that the work area is away from the ground by a distance between 1.15 and 1.5 meters

La disposition des chariots à proximité immédiate de l'opérateur facilite leur manipulation,tant pour les réglages que pour l'affûtage.De plus,leur disposition sur une console permet à l'opérateur de travailler de manière confortable,tout en étant protégé .Lorsqu'il est assis,il peut placer ses jambes sous cette console et être à la même distance transversale de la zone de travail que lorsqu'il est deboutoCet avantage se combine avec celui résultant de la position verticale de la zone de travail pour améliorer considérablement la position de l'opérateur qui travaille ainsi dans des conditions adaptées à sa morphologie,sans contrainte sur sa musculature,donc sans risque de courbatures douloureusesoThe arrangement of the carriages in the immediate vicinity of the operator facilitates their handling, both for adjustments and for sharpening, and their arrangement on a console allows the operator to work in a comfortable, while protected. When seated, he can place his legs under this console and be at the same transverse distance from the work area as when he is standing o This advantage combines with that resulting from the vertical position of the work area to considerably improve the position of the operator who works in conditions suited to his morphology, without strain on his muscles, therefore without the risk of painful stiffness

Le recours à un tableau de commande,articulé sur un levier rotatif par rapport à la console,participe également à cette amélioration du confort,puisque ce tableau peut toujours être disposé à proximité immédiate de l'opérateur,quelle que soit la position de ce dernier.Il est à noter que,par la rotation du tableau sur son levier,le tableau peut indifféremment être disposé à droite ou à gauche de l'opérateur et présenter,dans ces deux positions, la même répartition des organes de commande et de contrôle de la machine,ce qui interdit toute perturbation de l'opérateur consécutive à ce changement de position.The use of a control panel, articulated on a rotary lever relative to the console, also contributes to this improvement in comfort, since this panel can always be placed in the immediate vicinity of the operator, whatever the position of the latter. .It should be noted that, by rotating the switchboard on its lever, the switchboard can either be placed to the right or to the left of the operator and present, in these two positions, the same distribution of command and control members. the machine, which prevents any operator disturbance following this change of position.

Avantageusement,et dans le but de bénéficier des avantages apportés par l'utilisation d'une colonne réglable en hauteur pour supporter la broche,sans pour autant que cette broche soit trop éloignée de l'opérateur,le bloc formé par la broche et son moteur d'entrainement à vitesse variable,est suspendu avec interposition d'un support coudé,permettant de façon connue,des réglages angulaires autour d'axes,respectivement horizontal et vertical,à l'extrémité libre d'un bras radial dont l'autre extrémité est disposée à l'extrémité supérieure de la colonne mobile avec,de façon connue,possibilité de réglage angulaire autour de l'axe vertical.Advantageously, and in order to benefit from the advantages provided by the use of a height-adjustable column to support the spindle, without this spindle being too far from the operator, the block formed by the spindle and its motor variable speed drive, is suspended with the interposition of an angled support, allowing in known manner, angular adjustments around axes, respectively horizontal and vertical, at the free end of a radial arm whose other end is arranged at the upper end of the movable column with, in known manner, the possibility of angular adjustment around the vertical axis.

La broche motorisée,qui bénéficie d'une orientation universelle,peut ainsi occuper de très nombreuses positions ,sans pour autant que certaines de celles-ci l'éloignent trop de l'opérateur et obligent ce dernier à se pencher pour contrôler l'opération en cours.Plus précisément,cette disposition permet d'obtenir,pour toutes les positions utiles,une distance tâche-oeil de l'opérateur de l'ordre de 0,35 mètre améliorant le confort visuel de l'opérateur sans qu'il ait à s'approcher de la tâche,c'est-à-dire une distance de valeur bien inférieure à celle de 0,50 mètre obtenue avec les machines à affûter traditionnelles.The motorized spindle, which has a universal orientation, can thus occupy very many positions, without, however, some of these moving it too far from the operator and obliging the latter to bend down to control the operation by More detailed ment, this arrangement makes it possible to obtain, for all the useful positions, a task-eye distance of the operator of the order of 0.35 meters improving the visual comfort of the operator without having to approach of the task, that is to say a distance of value much lower than that of 0.50 meter obtained with traditional sharpening machines.

En outre,les moyens commandant le déplacement longitudinal du chariot supérieur sont composés de deux volants qui sont disposés latéralement sur l'un des côtés du chariot transversal et de part et d'autre de l'unique volant commandant les déplacements de ce dernier .In addition, the means controlling the longitudinal movement of the upper carriage are composed of two flywheels which are arranged laterally on one of the sides of the transverse carriage and on either side of the single flywheel controlling the movements of the latter.

Ainsi,lorsque l'opérateur est devant la machine,il peut,sans allonger le bras et sans fatigue,saisir le volant commandant le déplacement du chariot longitudinal qui est le plus près de lui et,si besoin est,ajuster dans les mêmes conditions la position du chariot transversal.Thus, when the operator is in front of the machine, he can, without lengthening the arm and without fatigue, grasp the steering wheel controlling the movement of the longitudinal carriage which is closest to him and, if necessary, adjust under the same conditions the position of the transverse carriage.

Avantageusement,le chariot longitudinal comporte,à son extrémité antérieure,un palier pour une tige coud,ée dont la branche verticale est réglable en hauteur et en orientation,et dont la branche horizontale supporte un appui-coude de position réglable.Advantageously, the longitudinal carriage comprises, at its anterior end, a bearing for a bent rod, whose vertical branch is adjustable in height and in orientation, and whose horizontal branch supports an adjustable position elbow support.

Cet appui-coude est destiné à supporter le coude ou l'avant-bras de l'opérateur lorsque celui-ci effectue des opérations longues nécessitant un actionnement de l'outil en cours d'affûtage.This elbow support is intended to support the operator's elbow or forearm when the operator is performing long operations requiring actuation of the tool during sharpening.

De manière à faciliter les réglages de la position de la broche motorisée par rapport à l'outil à affûter porté par des moyens connus reposant sur le chariot longitudinal,le repère de l'un des moyens de repérage,indiquant la position angulaire du support de broche autour d'un axe vertical,est réalisé sur une bague qui,apte après déblocage à pivoter à l'extrémité du bras de la colonne,est reliée à des moyens la maintenant,quelle que soit la position angulaire de ce bras,dans la même position relative avec le repère de l'un des moyens de repérage de la position angulaire du chariot transversal autour d'un axe vertical.In order to facilitate the adjustments of the position of the motorized spindle relative to the tool to be sharpened carried by known means resting on the longitudinal carriage, the mark of one of the marking means, indicating the angular position of the support of spindle around a vertical axis, is produced on a ring which, after unlocking, can pivot at the end of the arm of the column, is connected to means holding it, whatever the angular position of this arm, in the same relative position with the mark of one of the means for locating the angular position of the transverse carriage around an axis vertical.

Il apparait que la machine à affûter selon l'invention permet,grâce à sa structure,à la disposition relative de ses composants et à la concentration,à proximité de l'opérateur de ses moyens essentiels de réglage et de commande,de réduire la fatigue de ce dernier,mais aussi les temps morts de fabrication.Par ailleurs,le doublement des commandes du chariot longitudinal et la possibilité de déplacer le tableau de commande permet à l'opérateur de donner à ces divers organes la position qui lui convient le mieux,qu'il soit lui-même droitier ou gaucher,handicapé ou non,assis ou debout.It appears that the sharpening machine according to the invention allows, thanks to its structure, the relative arrangement of its components and the concentration, near the operator of its essential means of adjustment and control, to reduce fatigue. of the latter, but also the manufacturing downtime. In addition, the doubling of the controls of the longitudinal carriage and the possibility of moving the control panel allows the operator to give these various organs the position that best suits him, whether he himself is right-handed or left-handed, disabled or not, seated or standing.

D'autres caractéristiques et avantages ressortiront de la description qui suit en référence au dessin schématique annexé représentant,à titre d'exemple non limitatif,une forme d'exécution de cette machine à affûter.

  • Figure 1 en est une vue de côté,en élévation,avec coupe .partielle,
  • Figure 2 en est une vue de face en élévation,
  • Figure 3 est une vue partielle de côté avec coupe partielle montrant plus particulièrement l'articulation,par rapport à la console,des chariots et du levier comportant le tableau de commande,
  • Figure 4 est une vue partielle de côté,montrant en coupe transversale l'ensemble bras-support reliant la broche motorisée à la colonne,
  • Figure 5 est une vue en coupe suivant 5-5 de figure 4,
  • Figure 6 est une vue partielle,montrant en coupe transversale,une variante de réalisation des moyens de commande des dispositifs de blocage en rotation,
  • Figure 7 est une vue schématique en plan par-dessus mettant en évidence la coïncidence des repères d'orientation des chariots et de la broche quelle que soit la position angulaire du bras portant cette dernière,
  • Figures 8 et 9 sont des vues en perspective montrant deux des positions que peuvent occuper les organes de cette machine,
  • Figures 10 et 11 sont des vues schématiques en plan par-dessus correspondant aux figures 8 et 9 et montrant plus précisément la position relative des divers organes de la machine,
  • Figures 12 et 13 sont des vues de côté en élévation montrant deux variantes de réalisation de la machine,
  • Figures 14 et 15 sont des vues similaires aux figures 1 et 2,montrant une autre variante de réalisation de la machine.
Other characteristics and advantages will emerge from the description which follows with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, an embodiment of this sharpening machine.
  • Figure 1 is a side view, in elevation, with partial section.
  • Figure 2 is a front view in elevation,
  • FIG. 3 is a partial side view with partial section showing more particularly the articulation, with respect to the console, of the carriages and of the lever comprising the control panel,
  • FIG. 4 is a partial side view, showing in cross section the arm-support assembly connecting the motorized spindle to the column,
  • Figure 5 is a sectional view along 5-5 of Figure 4,
  • FIG. 6 is a partial view, showing in cross section, an alternative embodiment of the means for controlling the rotation locking devices,
  • FIG. 7 is a schematic plan view from above, highlighting the coincidence of the orientation marks of the carriages and of the spindle whatever the angular position of the arm carrying the latter,
  • FIGS. 8 and 9 are perspective views showing two of the positions that the members of this machine can occupy,
  • FIGS. 10 and 11 are schematic plan views from above corresponding to FIGS. 8 and 9 and showing more precisely the relative position of the various members of the machine,
  • Figures 12 and 13 are side elevation views showing two alternative embodiments of the machine,
  • Figures 14 and 15 are views similar to Figures 1 and 2, showing another alternative embodiment of the machine.

De façon connue,cette machine à affûter est composée d'un bâti 2 comportant un palier de guidage 3 pour une colonne verticale 4,des moyens portant une broche 6 et un chariot 7 déplacable transversalement et portant un chariot 8,déplaçable longitudinalement.Le chariot transversal 7 est monté avec possibilité de rotation autour d'un axe vertical x'-x par rapport au bâti 2.Le chariot longitudinal 8,qui est destiné à recevoir les moyens 70 (figures 8 et 9) portant l'outil à affûter,peut être monolithique ou comporter une fausse table orientable facilitant les réglages pour certaines fabrications.In known manner, this sharpening machine is composed of a frame 2 comprising a guide bearing 3 for a vertical column 4, means carrying a spindle 6 and a carriage 7 movable transversely and carrying a carriage 8, movable longitudinally. transverse 7 is mounted with the possibility of rotation about a vertical axis x'-x relative to the frame 2.The longitudinal carriage 8, which is intended to receive the means 70 (FIGS. 8 and 9) carrying the tool to be sharpened, can be monolithic or include a false swiveling table facilitating adjustments for certain manufacturing.

Selon l'invention,le palier d'articulation 2,permettant au chariot transversal 7 de pivoter autour de l'axe vertical x'-x,est disposé en porte-à-faux par rapport au bâti 2 dans une console 10 saillant à l'avant de ce bâti. Comme montré aux figures 8 et 9,cette console est semi- circulaire.According to the invention, the articulation bearing 2, allowing the transverse carriage 7 to pivot about the vertical axis x'-x, is arranged in cantilever with respect to the frame 2 in a console 10 projecting from the 'front of this frame. As shown in Figures 8 and 9, this console is semi-circular.

Plus précisément,et comme montré à la figure 3,la pièce 12,constituant le palier proprement dit et qui est liée à la console 10,est traversée par un arbre vertical 13 dont l'extrémité inférieure 13a,dépassant sous la console, est filetée et coopère avec les moyens de commande du blocage en rotation du chariot transversal.Dans la forme d' exécution représentée,ces moyens sont constitués par un écrou 11 solidaire d'un levier de commande 11a. Ce levier, qui est disposé au-dessous de la console,est très accessible pour l'opérateur.More specifically, and as shown in Figure 3, the part 12, constituting the bearing itself and which is linked to the console 10, is crossed by a vertical shaft 13 whose lower end 13a, projecting under the console, is threaded and cooperates with the means for controlling the blocking of the transverse carriage in rotation. In the embodiment shown, these means are constituted by a nut 11 secured to a control lever 11a. This lever, which is located below the console, is very accessible to the operator.

L'extrémité supérieure épaulée 13a de cet arbre prend appui,par l'intermédiaire d'un flasque 14,sur l'embase 15 du chariot transversal 7.Cette embase est montée en rotation par rapport à la pièce 12 avec interposition d'un roulement 16 dont la cage intérieure est montée à coulissement gras sur la dite pièce 12 et est en appui sur une rondelle élastique 17, elle-même en appui sur la pièce 12.The stepped upper end 13a of this tree takes support, via a flange 14, on the base 15 of the transverse carriage 7.This base is rotatably mounted relative to the part 12 with the interposition of a bearing 16 whose inner cage is mounted with greasy sliding on said part 12 and is supported on an elastic washer 17, itself supported on the part 12.

On conçoit aisément que,dès que cesse l'action des moyens de commande du blocage entrainant le plaquage de l'embase 15 sur le palier 12,la rondelle élastique 17 devient prépondérante et,par l'intermédiaire du roulement 16, éloigne l'embase 15 du palier 12. Cela permet la libre rotation du chariot transversal 7 et du chariot longitudinal 8 porté par ce dernier.La pièce 12 formant palier porte sur sa périphérie une graduation 73.It is easy to see that, as soon as the action of the locking control means ceasing causing the base plate 15 to be pressed onto the bearing 12, the elastic washer 17 becomes preponderant and, by means of the bearing 16, moves the base away 15 of the bearing 12. This allows the free rotation of the transverse carriage 7 and of the longitudinal carriage 8 carried by the latter. The part 12 forming a bearing carries on its periphery a graduation 73.

L'arbre 13 est également monté coulissant dans un palier 18,saillant au-dessous de la console 10,et autour duquel peut pivoter l'extrémité 19a d'un levier 19 supportant,à son autre extrémité 19b,un boîtier de commande 200 L'extrémité 19b,qui dépasse latéralement de la console, forme un pivot permettant au boîtier 20 de tourner sur lui-même d'au moins 180°.The shaft 13 is also slidably mounted in a bearing 18, projecting below the console 10, and around which the end 19a of a lever 19 can pivot, supporting, at its other end 19b, a control unit 200 L end 19b, which projects laterally from the console, forms a pivot allowing the housing 20 to rotate on itself by at least 180 °.

La figure 3 montre que les moyens de guidage en rotation et de blocage du chariot transversal 7 forment un ensemble très compact qui permet de donner à la console 10 une position verticale très élevée grâce à laquelle elle ne gêne pas l'opérateur lorsqu'il désire prendre une position de travail assise,cas dans lequel ses pieds peuvent prendre appui sur le repose-pied 21 réglable en hauteuroEn d'autres termes,cette console permet à l'opérateur de placer sans gêne ses jambes sous elle lorsqu'il désire travailler assis.La distance a entre la face inférieure et le sol peut avoir une valeur de l'ordre de 0,85 à 0,95 mètre et,notamment,0,9 mètre qui est la distance idéale.FIG. 3 shows that the means for guiding in rotation and for locking the transverse carriage 7 form a very compact assembly which makes it possible to give the console 10 a very high vertical position thanks to which it does not disturb the operator when he wishes take a seated working position, in which case his feet can rest on the height-adjustable footrest 21 In other words, this console allows the operator to place his legs undisturbed beneath him when he wishes to work seated The distance a between the underside and the ground can have a value of the order of 0.85 to 0.95 meters and, in particular, 0.9 meters which is the ideal distance.

La compacité des moyens de guidage en rotation et de blocage du chariot transversal permet également,compte tenu du faible encombrement vertical donné aux deux chariots,respectivement transversal et longitudinal,de disposer la face supérieure 22 du chariot longitudinal 8 à une distance b du sol comprise entre 1,1 et 1,2 mètre 0 Compte tenu de la hauteur des moyens 70 (fig.9) nécessaires pour maintenir les outils à affûter,la zone de travail est ainsi située à une distance e du sol (fig.9) comprise entre 1,25 et 1,5 mètre et de l'ordre de 1m,35.Grâce à cela,lorsque l'opérateur est devant la machine,la distance entre son oeil et la tâche est de l'ordre de Om,35, c'est-à-dire correspond sensiblement à la distance la plus confortable pour sa perception oculaire,sans qu'il ait besoin de se pencher,comme c'est le cas actuellement.The compactness of the means for guiding in rotation and for locking the transverse carriage also makes it possible, given the small vertical size given to the two carriages, respectively transverse and longitudinal, to arrange the upper face 22 of the longitudinal carriage 8 at a distance b from the ground of between 1.1 and 1.2 meters 0 Given the height of the means 70 (fig.9) necessary to maintain the tools to be sharpened, the work area is thus located at a distance e from the ground (fig.9) between 1.25 and 1.5 meters and of the order of 1m, 35 Thanks to this, when the operator is in front of the machine, the distance between his eye and the task is of the order of Om, 35, that is to say corresponds substantially to the most comfortable distance for his perception eyepiece, without having to bend over, as is currently the case.

Les figures 1 à 3 montrent que les moyens commandant les déplacements longitudinaux du chariot 8 sont constitués par deux volants 23a et 23b,disposés de part et d'autre du chariot transversal,et à proximité du bord antérieur de celui-ci.Ces deux volants sont disposés en avant de deux autres volants 24a et 24b commandant les déplacements transversaux du chariot 7.Ces moyens de commande sont ainsi à portée de main immédiate de l'opérateur, quelle que soit la position angulaire donnée aux deux chariots.Figures 1 to 3 show that the means controlling the longitudinal movements of the carriage 8 are constituted by two flywheels 23a and 23b, arranged on either side of the transverse carriage, and near the anterior edge thereof. These two flywheels are arranged in front of two other flywheels 24a and 24b controlling the transverse movements of the carriage 7.These control means are thus within immediate reach of the operator, whatever the angular position given to the two carriages.

Le chariot longitudinal comporte,à son extrémité libre antérieure,un palier 25 dans lequel est montée avec possibilité de réglage, tant vertical qu'en orientation,la branche verticale 26a d'une tige coudée dont la branche horizontale 26b supporte un appui-coude 27, réglable en position. Cet appui-coude,qui peut ainsi occuper diverses positions angulaires ou verticales par rapport à la face supérieure 22 du chariot longitudinal 8,permet à l'opérateur de poser son coude lorsqu'il effectue des opérations nécessitant une manipulation de l'outil pendant son affûtage.The longitudinal carriage comprises, at its anterior free end, a bearing 25 in which is mounted with the possibility of adjustment, both vertical and in orientation, the vertical branch 26a of a bent rod whose horizontal branch 26b supports an elbow support 27 , adjustable in position. This elbow support, which can thus occupy various angular or vertical positions relative to the upper face 22 of the longitudinal carriage 8, allows the operator to place his elbow when performing operations requiring manipulation of the tool during its sharpening.

La broche 6 forme bloc avec son moteur d'entrainement à vitesse variable.Elle est montée avec possibilité de réglage angulaire autour d'un axe horizontal y'-y par rapport à un support coudé 30.Ce dernier est lui-même monté avec possibilité de réglage angulaire autour d'un axe vertical z'-z à l'extrémité libre d'un bras 32 porté par la colonne 4. Ce bras est également monté avec possibilité de réglage angulaire autour de l'axe vertical v'-v de la colonne 4. Le plan vertical contenant l'axe v'-v de rotation de la colonne et l'axe vertical x'-x de rotation du chariot transversal est également le plan médian vertical transversal du bâti 2 et de la machine.Pin 6 forms a block with its variable speed drive motor. It is mounted with the possibility of angular adjustment around a horizontal axis y'-y relative to an angled support 30. The latter is itself mounted with possibility angular adjustment around a worm axis tical z'-z at the free end of an arm 32 carried by the column 4. This arm is also mounted with the possibility of angular adjustment around the vertical axis v'-v of the column 4. The vertical plane containing the axis v'-v of rotation of the column and the vertical axis x'-x of rotation of the transverse carriage is also the transverse vertical median plane of the frame 2 and of the machine.

Comme montré plus en détail à la figure 4,la broche motorisée 6 est solidaire d'une embase 33 qui,munie d'une graduation 34,peut pivoter dans un.alésage 35 ménagé à l'extrémité du support coudé 30. Cette embase est calée en rotation par une tige filetée 36 dont elle est solidaire et dont l'extrémité traversant la face postérieure du support 30 reçoit un écrou de blocage 37.Ce support 30 est lui-même lié.à une embase 38 montée libre en rotation avec interposition de roulements 39 sur un arbre vertical 40.L'extrémité inférieure de cet arbre est épaulée en 40a et s'appuie, avec interposition d'une butée à billes 42,sur la face inférieure de l'embase"38 précitée.Son extrémité supérieure, qui traverse l'extrémité libre du bras 32,est filetée en 42b et coopère avec des moyens de commande de blocage, moyens constitués dans cette forme de réalisation par un écrou 43 lié à une poignée de commande 44.Lorsque l'écrou 43 est actionné dans le sens du blocage,l'arbre 40 est déplacé verticalement et plaque l'embase 38 contre une bague intermédiaire 45 montée libre en rotation sur lui et venant en appui contre la face inférieure du bras 32.Cette bague porte également la graduation.46 assurant le repérage de la position angulaire du support en combinaison avec un repère porté par l'embase 38.As shown in more detail in FIG. 4, the motorized spindle 6 is integral with a base 33 which, provided with a scale 34, can pivot in a bore 35 formed at the end of the bent support 30. This base is locked in rotation by a threaded rod 36 of which it is integral and the end of which passes through the rear face of the support 30 receives a locking nut 37. This support 30 is itself linked to a base 38 freely rotatably mounted with interposition of bearings 39 on a vertical shaft 40. The lower end of this shaft is shouldered at 40a and is supported, with the interposition of a thrust ball bearing 42, on the lower face of the above-mentioned base "3 8. upper, which crosses the free end of the arm 32, is threaded at 42b and cooperates with locking control means, means constituted in this embodiment by a nut 43 linked to a control handle 44. When the nut 43 is actuated in the blocking direction, the shaft 40 is moved vertically e t plate the base 38 against an intermediate ring 45 mounted to rotate freely on it and coming to bear against the underside of the arm 32. This ring also carries the graduation. 46 ensuring the location of the angular position of the support in combination with a mark carried by the base 38.

L'extrémité postérieure du bras 32 est articulée autour d'un arbre vertical 50,qui est monté libre en rotation avec interposition de roulements appropriés,dans une pièce 52,fixée à l'extrémité de la colonne 4 du bâti.L'extrémité inférieure de l'arbre 50 est épaulée en 50a et prend appui,avec interposition d'une butée à billes 53 ,sur la face inférieure de la pièce 52 précitée.La partie supérieure de cet arbre traverse le bras 32 et comporte une extrémité filetée 54 destinée à coopérer avec des moyens de commande du blocage constitués dans cette forme d'exécution par un écrou 55 solidaire d'un bras de commande 56. L'arbre 50 est calé en rotation par rapport au bras 32 par une vis 57.Lorsque le bras de commande 56 est manoeuvré dans le sens du blocage,l'extrémité postérieure du bras 32 est plaquée sur une bague 58 interposée entre elle et la pièce 52.Après déblocage et lorsque le bras est pivoté, le couple de basculement communiqué à la partie postérieure du bras par le poids des organes disposés à son extrémité antérieure,est compensé par un galet 60 roulant sur la face supérieure de la bague 58 précitée.The rear end of the arm 32 is articulated around a vertical shaft 50, which is mounted to rotate freely with the interposition of suitable bearings, in a part 52, fixed to the end of the column 4 of the frame. The lower end of the shaft 50 is supported at 50a and is supported, with the interposition of a ball bearing 53, on the underside of the aforementioned part 52. of this shaft passes through the arm 32 and has a threaded end 54 intended to cooperate with locking control means constituted in this embodiment by a nut 55 secured to a control arm 56. The shaft 50 is wedged in rotation relative to the arm 32 by a screw 57. When the control arm 56 is maneuvered in the locking direction, the rear end of the arm 32 is pressed against a ring 58 interposed between it and the part 52. when the arm is pivoted, the tilting torque imparted to the rear part of the arm by the weight of the members arranged at its front end, is compensated by a roller 60 rolling on the upper face of the aforementioned ring 58.

De préférence,et de manière à faciliter les réglages de la machine,le bras 32 comporte des moyens qui,quelle que soit sa position angulaire,maintiennent dans la même position relative l'un des éléments de la graduation indiquant la position angulaire de la broche motorisée 6 autour de l'axe z'-z avec l'un des éléments de la graduation indiquant la position angulaire du chariot autour de l'axe vertical x'-x.Dans la forme d'exécution représentée, ces moyens sont constitués par un lien souple,tel qu'un feuillard métallique ou un câble 62,formant une boucle autour,respectivement de la bague 45 et de la pièce 52, lien dont les extrémités,disposées dans des gorges,respectivement 63 et 64,sont fixées par des vis 65 et 66.Un tendeur 67,disposé au milieu du bras 32,et accessible de l'extérieur,permet de régler la tension de ce lien 620 Grâce à cet agencement,et comme montré à la figure 7, lorsque le bras 32 est amené de la position A à la position B ou à la position C,le repère 71 correspondant au zéro de la graduation 46 de la bague 45,conserve toujours la même orientation par rapport à son axe d'articulation, c'est-à-dire reste dans un plan vertical P1,P'1,p"1, qui est toujours parallèle au plan médian vertical P de la machine,plan contenant le repère 72 pour la graduation 73 de repérage de la position angulaire du chariot transversal 70Preferably, and in order to facilitate the adjustments of the machine, the arm 32 comprises means which, whatever its angular position, maintain in the same relative position one of the elements of the scale indicating the angular position of the spindle motorized 6 around the axis z'-z with one of the elements of the scale indicating the angular position of the carriage around the vertical axis x'-x. In the embodiment shown, these means are constituted by a flexible link, such as a metal strip or a cable 62, forming a loop around, respectively, the ring 45 and the part 52, a link whose ends, arranged in grooves, respectively 63 and 64, are fixed by screws 65 and 66. A tensioner 67, placed in the middle of the arm 32, and accessible from the outside, makes it possible to adjust the tension of this link 620 Thanks to this arrangement, and as shown in FIG. 7, when the arm 32 is brought from position A to position B or to position C, the corresponding reference 71 at the zero of the graduation 46 of the ring 45, always keeps the same orientation with respect to its axis of articulation, that is to say remains in a vertical plane P1, P'1, p "1, which is always parallel to the vertical median plane P of the machine, plane containing the mark 72 for the graduation 73 for locating the angular position of the trolley versal 70

Comme montré à la figure 1,les moyens de déplacement vertical de la colonne 4 sont constitués par un ensemble vis 75-écrou 76 qui est disposé entre l'axe vertical v'-v de la colonne et l'axe vertical x'-x de rotation du chariot 2.Plus précisément,la vis 75 est liée en rotation à un réducteur 77,lui-même entrainé par un moteur électrique non représenté,tandis que l'écrou 76 est calé à l'extrémité d'un bras 78 saillant latéralement à l'extrémité inférieure de la colonne 4 et saillant de celle-ci en direction de l'axe de rotation des chariots.As shown in Figure 1, the vertical displacement means of the column 4 are constituted by a screw 75-nut 76 assembly which is arranged between the vertical axis v'-v of the column and the vertical axis x'-x of rotation of the carriage 2. More specifically, the screw 75 is linked in rotation to a reduction gear 77, itself driven by an electric motor not shown, while the nut 76 is wedged at the end of a projecting arm 78 laterally at the lower end of the column 4 and projecting from the latter in the direction of the axis of rotation of the carriages.

Grâce à leur disposition,ces moyens d'entrainement limitent considérablement la tendance au basculement sur l'avant communiqué à la colonne par le poids des éléments que supporte le bras 32.Thanks to their arrangement, these drive means considerably limit the tendency to tilt on the front communicated to the column by the weight of the elements which the arm 32 supports.

L'arbre du moteur électrique entrainant le réducteur 77 est prolongé à chacune de ses extrémités par des tiges 80 qui,comme montré à la figure 2,traversent chacune les parois latérales correspondantes du bâti 2 pour recevoir un volant de manoeuvre 82.Le recours à deux volants de manoeuvre , disposés de part et d'autre du bâti, permet à l'o- pérateur d'effectuer tous ses réglages de fabrication en restant d'un même côté de la machine,donc sans qu'il soit nécessaire de se déplacer de manière trop importante.The shaft of the electric motor driving the reduction gear 77 is extended at each of its ends by rods 80 which, as shown in FIG. 2, each pass through the corresponding side walls of the frame 2 to receive a handwheel 82. two handwheels, arranged on either side of the frame, allows the operator to carry out all of his manufacturing adjustments while staying on the same side of the machine, therefore without having to move too much.

Les moyens de commande de blocage du support 30 par rapport au bras 32,du support 30 par rapport à la colonne 4 et du chariot 2 par rapport à la console 10,moyens qui, dans les formes d'exécution précédentes,sont constitués par un écrou actionnable par un levier radial, peuvent également être constitués par des moyens pneumatiques dont une forme d'exécution est représentée à la figure 6.Ces moyens sont constitués par un cylindre 85 apte à être fixé sur la partie correspondante de la machine et,par exemple, à l'extrémité postérieure du bras 32.Ce cylindre est divisé en deux compartiments,respectivement 86 et 87 par une membrane étanche 88.La chambre 86 est reliée à une source d'air comprimé,par une canalisation aboutissant à l'orifice 89.La chambre 87 contient un piston 90 qui est rapporté par vissage sur l'extrémité filetée de l'arbre de commande correspondant et,par exemple,sur l'extrémité 54 de l'arbre 50 commandant le blocage de la rotation du bras 32.Des rondelles élastiques 92,type "Belleville",prenant appui ,d'une part,sur le fond de la chambre 87 et,d'autre part,sous le piston 90,tendent à plaquer constamment celui-ci contre la membrane 88.The means for controlling the blocking of the support 30 relative to the arm 32, of the support 30 relative to the column 4 and of the carriage 2 relative to the console 10, means which, in the previous embodiments, consist of a nut actuable by a radial lever, can also be constituted by pneumatic means, an embodiment of which is shown in FIG. 6. These means consist of a cylinder 85 capable of being fixed on the corresponding part of the machine and, by example, at the rear end of the arm 32. This cylinder is divided into two compartments, respectively 86 and 87 by a waterproof membrane 88. The chamber 86 is connected to a source of compressed air, by a pipe leading to the orifi this 89. The chamber 87 contains a piston 90 which is attached by screwing to the threaded end of the corresponding control shaft and, for example, to the end 54 of the shaft 50 controlling the blocking of the rotation of the arm 32. Elastic washers 92, of the "Belleville" type, bearing, on the one hand, on the bottom of the chamber 87 and, on the other hand, under the piston 90, tend to constantly press the latter against the membrane 88 .

Lorsque la chambre 86 est alimentée en air comprimé, la membrane 88 transmet la pression qu'elle reçoit au piston 90 qui comprime les rondelles 92 et,en commandant le déplacement vers le bas de l'arbre 50,entraine le déblocage du bras 32.A l'inverse,dès que la chambre 86 n'est plus alimentée en air comprimé,les rondelles 92 deviennent prépondérantes et assurent à elles seules le blocage de l'arbre 50. Cette disposition garantit le blocage des organes de la machine en cas de panne d'alimentation de l'air comprimé.When the chamber 86 is supplied with compressed air, the membrane 88 transmits the pressure it receives to the piston 90 which compresses the washers 92 and, by controlling the downward movement of the shaft 50, causes the arm 32 to be released. Conversely, as soon as the chamber 86 is no longer supplied with compressed air, the washers 92 become predominant and alone ensure the blocking of the shaft 50. This arrangement guarantees the blocking of the components of the machine in the event of compressed air supply failure.

Ces moyens de commande,qui peuvent être disposés sur l'arbre 50,sur l'arbre 40 ou sur l'arbre 13 de blocage du chariot,sont avantageusement actionnés à partir du boîtier de commande 200 Dans ces conditions,la totalité des moyens de commande et de réglage de la machine sont à portée immédiate de l'opérateur,qui n'a donc pas besoin de se déplacer,tant pour les opérations de réglage que pour les opérations d'affûtage.These control means, which can be arranged on the shaft 50, on the shaft 40 or on the carriage blocking shaft 13, are advantageously actuated from the control unit 200 Under these conditions, all of the means of machine control and adjustment are within immediate reach of the operator, who therefore does not need to move, both for adjustment operations and for sharpening operations.

Les figures 8 à 11 mettent en évidence que la structure des moyens portant la broche,la disposition en porte-à-faux des chariots,la réalisation de double commande pour les mouvements de réglage essentiels et le recours à un boîtier de commande articulé à l'extrémité d'un levier permettent de donner aux organes de la machine une infinité de positions relatives,mais surtout d'adapter ces positions,d'une part au travail à effectuer et,d'autre part,à la morphologie de l'opérateur,que celui-ci soit valide ou handicapé,droitier ou gaucher,et qu'il souhaite travailler debout ou assis.Ainsi,lorsque la machine est en position représentée aux figures 8 et 10, l'opérateur peut actionner le porte-outil 70 de la main droite en ayant,sur sa gauche,le boîtier de commande 20 et le volant 23a de déplacement longitudinal,tandis que,lorsque la machine est dans la position représentée aux figures 9 et 11, l'opérateur peut actionner le porte-outil 70 de la main gauche en ayant,sur sa droite,le boîtier 20 et le volant 23b. Par ailleurs,dans ces positions,et grâce à la disposition relative des éléments,la zone de travail est située à sensiblement 1,35 mètre du sol et à 0,35 mètre de l'oeil de l'opérateur,c'est-à-dire à un endroit permettant à l'opérateur de contrôler l'opération en cours sans qu'il ait à se pencher latéralement ou transversalement,ce qui réduit sa fatigue,sa tension nerveuse et augmente sa productivité..FIGS. 8 to 11 show that the structure of the means carrying the spindle, the cantilevered arrangement of the carriages, the carrying out of double control for the essential adjustment movements and the use of a control box articulated to the end of a lever make it possible to give the machine's organs an infinite number of relative positions, but above all to adapt these positions, on the one hand to the work to be performed and, on the other hand, to the morphology of the operator , whether the latter is valid or disabled, right-handed or left-handed, and whether he wishes to work standing or seated. in the position shown in Figures 8 and 10, the operator can operate the tool holder 70 with the right hand having, on his left, the control unit 20 and the steering wheel 23a for longitudinal movement, while, when the machine is in the position shown in Figures 9 and 11, the operator can operate the tool holder 70 with the left hand having, on his right, the housing 20 and the steering wheel 23b. Furthermore, in these positions, and thanks to the relative arrangement of the elements, the working area is located approximately 1.35 meters from the ground and 0.35 meters from the operator's eye, that is to say - say in a place allowing the operator to control the operation in progress without having to lean laterally or transversely, which reduces his fatigue, his nervous tension and increases his productivity.

Il est à noter qu'une grande partie de ces avantages peut être obtenue avec une machine simplifiée au niveau des moyens portant la broche d'entrainement de la meule. En effet,que la machine soit munie, pour des raisons d'abaissement du prix de revient ou de spécialisation du travail,comme à la figure 12,d'une tête porte-meule traditionnelle 95 ou,comme à la figure 13, d'une broche motorisée 6 calée à l'extrémité d'une traverse 96 pivotante par rapport à la colonne 4,les autres caractéristiques de l'invention subsistent et permettent ainsi d'obtenir les mêmes résultats.It should be noted that a large part of these advantages can be obtained with a machine simplified in terms of the means carrying the drive spindle of the grinding wheel. Indeed, that the machine is provided, for reasons of lowering the cost price or specialization of the work, as in FIG. 12, with a traditional grinding wheel head 95 or, as in FIG. 13, a motorized spindle 6 wedged at the end of a cross member 96 pivoting relative to the column 4, the other characteristics of the invention remain and thus allow the same results to be obtained.

Bien que mieux adaptée à la morphologie humaine,la machine des figures 1 à 11 nécessite de la part. des opérateurs actuels une modification des habitudes de travail si importante qu'elle peut conduire au refus d'utiliser la machine.Pour remédier à cela, dans la variante des figures 14 et 15,le plan de travail est abaissé d'une quantité suffisante pour favoriser l'adaptation progressive des utilisateurs,sans pour autant que la distance entre l'oeil et la zone de travail soit trop agrandie.Ainsi,les distances a,b ont des valeurs de l'ordre de 0,8 et 1 mètre afin que la distance c,de la zone de travail au sol,soit comprise entre 1,15 et 1,5 mètre et,de préférence,de l'ordre de 1,25 mètre.Compte tenu de ces modifications,et afin d'éviter que les genoux de l'opérateur soit gênés par la console 10 lorsqu'il est assis,cette dernière est réduite dans sa partie saillant sur l'avant.Quant au levier 19 portant le boîtier de commande 20, il est composé de deux éléments télescopiques 19',19" . Celui 19' est articulé au-dessous du levier de commande 11a pour ne plus être gêné dans sa rotation par les goussets 10a reliant la console 10 au bâti.De même,pour augmenter les possibilités de pivotement du levier 19,1e bâti 2 présente des angles coupés 2a.Although better suited to human morphology, the machine of Figures 1 to 11 requires the share. of current operators a modification of working habits so significant that it can lead to refusal to use the machine. To remedy this, in the variant of FIGS. 14 and 15, the work plan is lowered by an amount sufficient to favor the progressive adaptation of the users, without the distance between the eye and the work area being too large. Thus, the distances a, b have values of the order of 0.8 and 1 meter so that the distance c, from the working area to the ground, i.e. between 1.15 and 1.5 meters and preferably around 1.25 meters. In view of these modifications, and in order to avoid the operator's knees being hampered by the console 10 when 'it is seated, the latter is reduced in its projecting part on the front. As for the lever 19 carrying the control box 20, it is composed of two telescopic elements 19', 19 ". The one 19 'is articulated below of the control lever 11a so as no longer to be hampered in its rotation by the gussets 10a connecting the console 10 to the frame. Similarly, to increase the possibilities of pivoting of the lever 19.1e frame 2 has cut angles 2a.

Cette machine se différencie aussi de la précédente par la disposition des volants de manoeuvre 23'a-23'b du chariot longitudinal 8.En effet,ceux-ci sont disposés d'un seul côté du chariot transversal 7 et de part et d'autre de l'unique volant 24 commandant les mouvements de ce dernier.Cette disposition,qui réduit le coût de fabrication en supprimant un volant,permet,comme dans la forme d'exécution précédente,dé réunir toutes les commandes à portée de main de l'opérateur quelle que soit la position angulaire des chariots.This machine also differs from the previous one by the arrangement of the handwheels 23'a-23'b of the longitudinal carriage 8. Indeed, these are arranged on one side of the transverse carriage 7 and on both sides Another of the single flywheel 24 controlling the movements of the latter. This arrangement, which reduces the manufacturing cost by eliminating a flywheel, allows, as in the previous embodiment, to unite all the commands at hand from the operator regardless of the angular position of the carriages.

Claims (11)

1-Machine à affûter universelle et ergonomique du type composé d'un bâti (2) muni d'une console (10) fixe et en forme de plateau,d'un chariot transversal (7) articulé verticalement sur la console,et dont les moyens de blocage en rotation traversent cette dernière,d'un chariot lôn- gitudinal (8) disposé sur le chariot transversal (7) et apte à recevoir des moyens de maintien et de positionnement des outils à affûter,d'une colonne verticale (4) réglable en hauteur par rapport au bâti (2) et portant une broche porte-meule et des moyens de réglage de la position angulaire de la broche,caractérisée en ce que le palier d'articulation (9) du chariot transversal (7) est disposé à l'avant et en porte-à-faux par rapport au bâti (2),au même titre qu'un autre palier (18) qui,saillant sous la console et traversé par les moyens de blocage en rotation du chariot,forme pivot pour l'extrémité (19a) d'un levier (19) dont l'extrémité libre (19b),dépassant de la console, supporte un tableau de commande articulé (20), tandis que le plan supérieur (22) du chariot longitudinal (8) est situé à une distance du sol comprise entre 1 et 1,2 mètre , de manière que la zone de travail soit éloignée du sol d'une distance comprise entre 1,15 et 1,5 mètre .1-Universal and ergonomic sharpening machine of the type consisting of a frame (2) provided with a console (10) fixed and in the form of a tray, a transverse carriage (7) articulated vertically on the console, and the means for locking in rotation through the latter, a longitudinal carriage (8) disposed on the transverse carriage (7) and capable of receiving means for holding and positioning the tools to be sharpened, with a vertical column (4 ) adjustable in height with respect to the frame (2) and carrying a grinding wheel spindle and means for adjusting the angular position of the spindle, characterized in that the articulation bearing (9) of the transverse carriage (7) is arranged at the front and overhanging with respect to the frame (2), in the same way as another bearing (18) which, projecting under the console and crossed by the means for blocking the rotation of the carriage, forms pivot for the end (19a) of a lever (19) whose free end (19b), protruding from the console, supports a rear control panel ticulated (20), while the upper plane (22) of the longitudinal carriage (8) is located at a distance from the ground between 1 and 1.2 meters, so that the work area is distant from the ground by a distance between 1.15 and 1.5 meters. 2-Machine à affûter selon la revendication 1,caractérisée en ce que le bloc,formé par la broche et son moteur d'entrainement (6) à vitesse variable,est suspendu avec interposition d'un support coudé (30),permettant de façon connue des réglages angulaires autour d'axes, respectivement horizontal (y'-y) et vertical (z'-z),à l'extrémité libre d'un bras radial (32) dont l'autre extrémité est disposée à l'extrémité supérieure de la colonne mobile (4) avec,de façon connue,possibilité de réglage angulaire autour de l'axe vertical (v'-v).2-Sharpening machine according to claim 1, characterized in that the block, formed by the spindle and its drive motor (6) at variable speed, is suspended with the interposition of an elbow support (30), allowing known for the angular adjustments around axes, respectively horizontal (y'-y) and vertical (z'-z), at the free end of a radial arm (32) whose other end is disposed at the end upper of the movable column (4) with, in known manner, the possibility of angular adjustment around the vertical axis (v'-v). 3-Machine à affûter selon l'une quelconque des:revendications 1 et 2,caractérisée en ce que le chariot longitudinal (8) comporte,à son extrémité antérieure,un palier (25) pour une tige coudée dont la branche verticale (26a) est réglable en hauteur et en orientation,et dont la branche horizontale (26b) supporte un appui-coude (27) de position réglable.3-sharpening machine according to any one of: claims 1 and 2, characterized in that the longitudinal carriage (8) comprises, at its front end, a bearing (25) for a bent rod whose vertical branch (26a) is adjustable in height and orientation, and the horizontal branch (26b) of which supports an elbow support (27) of adjustable position. 4-Machine selon l'une quelconque des revendications 1 à 3,caractérisée en ce que le repère (71) de l'un des moyens de repérage indiquant la position angulaire du support de broche (30)autour d'un axe vertical (z'-z)est réalisé sur une bague (45) qui,apte après déblocage,à pivoter à l'extrémité du bras (32) de la colonne,est reliée à des moyens la maintenant,quelle que soit la position angulaire de ce bras,dans la même position relative avec le repère (72) de l'un des moyens de repérage de la position angulaire du chariot transversal (7) autour d'un axe vertical (x'-x).4-Machine according to any one of claims 1 to 3, characterized in that the mark (71) of one of the marking means indicating the angular position of the spindle support (30) around a vertical axis (z '-z) is formed on a ring (45) which, after release, to pivot at the end of the arm (32) of the column, is connected to means holding it, whatever the angular position of this arm , in the same relative position with the reference (72) of one of the means for locating the angular position of the transverse carriage (7) around a vertical axis (x'-x). 5-Machine selon la revendication 4,caractérisée en ce que la bague (45) ,d'une part,est disposée entre l'extrémité libre du bras (32) et un palier (38) lié au support de broche (30),d'autre part,est montée libre en rotation autour d'un arbre (40) dont l'extrémité inférieure épaulée soutient le support précité,et dont l'extrémité supérieure traverse le bras et coopère avec des moyens de commande du blocage en rotation de ce support,et de plus,est solidaire d'un lien (62) qui,l'enveloppant au moins partiellement,est solidaire d'une pièce (52) liée à la colonne (4).5-machine according to claim 4, characterized in that the ring (45), on the one hand, is disposed between the free end of the arm (32) and a bearing (38) linked to the spindle support (30), on the other hand, is mounted free in rotation around a shaft (40) whose lower end shouldered supports the aforementioned support, and whose upper end passes through the arm and cooperates with means for controlling the blocking in rotation of this support, and moreover, is integral with a link (62) which, at least partially enveloping it, is integral with a part (52) linked to the column (4). 6-Machine selon la revendication 5,caractérisée en ce que la pièce (52) solidaire de la colonne (4) est à laquelle est fixé le lien (62) ,constitue palier pour un arbre vertical (50) lié en rotation au bras (32) ,mais libre en translation,et dont l'extrémité inférieure épaulée prend appui sous la pièce précitée,tandis que son extrémité supérieure coopère avec des moyens de commande du blocage en rotation du bras sur la colonne.6-machine according to claim 5, characterized in that the part (52) integral with the column (4) is to which the link (62) is fixed, constitutes a bearing for a vertical shaft (50) linked in rotation to the arm ( 32), but free in translation, and of which the shouldered lower end bears under the aforementioned part, while its upper end cooperates with means for controlling the rotation blocking of the arm on the column. 7-Machine selon la revendication 1 et l'une quelconque des revendications 2 à 6,caractérisée en ce que les moyens de blocage en rotation du chariot transversal (7) sont constitués par un arbre vertical (13) traversant l'embase (15) et le palier (12) de ce chariot,dont l'extrémité inférieure coopère avec des moyens de commande du blocage, et dont l'extrémité supérieure épaulée transmet à l'embase (15) l'effort de traction des moyens de commande, cette embase (15) étant montée libre en rotation par rapport au palier (12) et associée à une rondelle élastique (17) apte à l'écarter d'une face d'appui du palier, dès que cesse l'action des moyens de commande du blocage.7-Machine according to claim 1 and any one of claims 2 to 6, characterized in that the means for locking in rotation of the transverse carriage (7) are constituted by a vertical shaft (13) passing through the base (15) and the bearing (12) of this carriage, whose lower end cooperates with locking control means, and whose stepped upper end transmits to the base (15) the tensile force of the means of control, this base (15) being mounted to rotate freely relative to the bearing (12) and associated with an elastic washer (17) capable of moving it away from a bearing face of the bearing, as soon as the action of the blocking control means. 8-Machine selon la revendication 1, et l'une quelconque des revendications 5 à 7,caractérisée en ce que les moyens de commande de blocage sont constitués par un vérin pneumatique dont le cylindre (85) contient une membrane étanche (88) délimitant une chambre (86) apte à être mise en relation avec une source d'air comprimé et une autre chambre (87) contenant un piston (90) qui,vissé à l'extrémité de l'arbre épaulé correspondant,est maintenu en appui contre la membrane par des rondelles élastiques de rappel (92) interposées entre ce piston et une face interne d'appui du cylindre.8-machine according to claim 1, and any one of claims 5 to 7, characterized in that the blocking control means are constituted by a pneumatic cylinder whose cylinder (85) contains a waterproof membrane (88) defining a chamber (86) capable of being brought into contact with a source of compressed air and another chamber (87) containing a piston (90) which, screwed to the end of the corresponding shouldered shaft, is held in abutment against the membrane by elastic return washers (92) interposed between this piston and an internal bearing face of the cylinder. 9-Machine selon la revendication 1 et l'une quelconque des revendications 2 à 8,caractérisée en ce que les moyens commandant le déplacement longitudinal du chariot supérieur sont composés de deux volants qui sont disposés latéralement sur l'un des c8tés du chariot transversal et de part et d'autre de l'unique volant commandant les déplacements de ce dernier.9-machine according to claim 1 and any one of claims 2 to 8, characterized in that the means controlling the longitudinal movement of the upper carriage are composed of two flywheels which are arranged laterally on one of the sides of the transverse carriage and on either side of the single steering wheel controlling the movements of the latter. 10-Machine selon la revendication 1 et l'une quelconque des revendications 2 à 9,caractérisée en ce que la vis (75) ,commandant les déplacements verticaux de la colonne (4),coopère avec un écrou (76) calé à l'extrémité d'un bras radial (78),solidaire de l'extrémité inférieure de la dite colonne et saillant de celle-ci en direction de l'axe de rotation (x'-x) des chariots.10-machine according to claim 1 and any one of claims 2 to 9, characterized in that the screw (75), controlling the vertical displacements of the column (4), cooperates with a nut (76) fixed to the end of a radial arm (78), integral with the lower end of said column and projecting therefrom in the direction of the axis of rotation (x'-x) of the carriages. 11-Machine selon la revendication 10,caractérisée en ce que la vis (75),commandant les déplacements de la broche,est liée en rotation par l'intermédiaire d'unréduc- teur (77) à un moteur électrique dont l'arbre est prolongé à chacune de ses extrémités par une tige de commande (80),solidaire d'un volant de manoeuvre (82) dans sa partie dépassant latéralement de la paroi correspondante du bâti (2).11-Machine according to claim 10, characterized in that the screw (75), controlling the movements of the spindle, is linked in rotation by means of a reduction tor (77) to an electric motor, the shaft of which is extended at each of its ends by a control rod (80), integral with an operating handwheel (82) in its part projecting laterally from the corresponding wall of the frame ( 2).
EP19810420179 1980-12-03 1981-12-02 Universal ergonomic sharpening machine Withdrawn EP0053569A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8026032 1980-12-03
FR8026032A FR2495035A1 (en) 1980-12-03 1980-12-03 UNIVERSAL ERGONOMIC SHARPENER

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EP0053569A1 true EP0053569A1 (en) 1982-06-09

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CN116214327A (en) * 2022-12-08 2023-06-06 新清环境技术(连云港)有限公司 Wind-powered electricity generation blade shaping bonding plane grinding device

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FR2547231A1 (en) * 1983-06-10 1984-12-14 Vilar G Ets SHARPENING MACHINE
EP0128829A1 (en) * 1983-06-10 1984-12-19 Etablissements G VILAR Tool grinding machine
CN116214327A (en) * 2022-12-08 2023-06-06 新清环境技术(连云港)有限公司 Wind-powered electricity generation blade shaping bonding plane grinding device
CN116214327B (en) * 2022-12-08 2023-10-31 新清环境技术(连云港)有限公司 Wind-powered electricity generation blade shaping bonding plane grinding device

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FR2495035B1 (en) 1984-07-20
FR2495035A1 (en) 1982-06-04

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