EP0023876B1 - Machines for sharpening machining tools - Google Patents

Machines for sharpening machining tools Download PDF

Info

Publication number
EP0023876B1
EP0023876B1 EP19800420095 EP80420095A EP0023876B1 EP 0023876 B1 EP0023876 B1 EP 0023876B1 EP 19800420095 EP19800420095 EP 19800420095 EP 80420095 A EP80420095 A EP 80420095A EP 0023876 B1 EP0023876 B1 EP 0023876B1
Authority
EP
European Patent Office
Prior art keywords
turret
axis
machine
frame
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19800420095
Other languages
German (de)
French (fr)
Other versions
EP0023876A1 (en
Inventor
Bernard Treuillet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smp Ancienne Mecanique De Perrache Francaise SA Ste
Original Assignee
Smp Ancienne Mecanique De Perrache Francaise SA Ste
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 Smp Ancienne Mecanique De Perrache Francaise SA Ste filed Critical Smp Ancienne Mecanique De Perrache Francaise SA Ste
Publication of EP0023876A1 publication Critical patent/EP0023876A1/en
Application granted granted Critical
Publication of EP0023876B1 publication Critical patent/EP0023876B1/en
Expired legal-status Critical Current

Links

Images

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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools

Definitions

  • the present invention relates to machines for sharpening cutters and other machining tools.
  • the interchangeable grinding wheel is generally mounted with its electric drive motor on a turret carried in rotation by a frame capable of being adjusted in height along a vertical column, itself adjustable in transverse position relative to a horizontal bench.
  • the operator is thus able to bring the useful part of the grinding wheel to its exact desired position for sharpening the tools to be worked, which are fixed on a headstock movable axially along the aforementioned bench and are capable of being animated. an axial translational movement and / or angular displacement.
  • the useful part of the grinding wheel is profiled as a function of the sharpening work to be carried out, so that the grinding spindle receives in fact, during the use of a machine considered, grinding wheels of very large dimensions. different, especially in thickness (length along the axis).
  • the invention intends to remedy, and this by providing the machine with an eclipsable guide mounted so as to materialize when desired the axis of orientation of the turret so that by translation of the grinding spindle along its axis and taking into account the lateral offset of this spindle with respect to the aforementioned orientation axis, the useful face of the grinding wheel can be brought into the plane passing through this axis, by simply bringing said face into contact with the eclipsable guide.
  • the reference 1 designates the fixed horizontal bench of the sharpening machine, on which the headstock 2 moves for fixing the tool to be worked, shown diagrammatically at 3; the headstock 2 is capable either of being fixed in an adjustable manner along the bench 1, or of being driven in a longitudinal movement back and forth, depending on the nature of the sharpening to be carried out; in the same way and in the usual way the tool 3 can, when desired, be moved angularly by jerks according to a variable amplitude.
  • the lower part of the bench 1 is arranged to form a sliding guide for a transverse carriage 4a, vertically integral with a column 4.
  • the latter supports in an adjustable manner a frame 5 mounted cantilevered above the bench 1.
  • this frame 5 In conventional machines, it is the underside of this frame 5 which directly carries the turret 6 in an orientable manner, inside which is housed the electric motor 7 for driving the spindle 8 intended to support the grinding wheel. sharpening 9.
  • the frame 5 is traversed by a vertickal sleeve 10 provided at its lower part with a flange 10a against which bears a disc 11 whose outer wall carries the graduation 11 a of a circular vernier which cooperates with a reference 10 b of the flange 10a, said disc being attached against the underside of the frame.
  • the upper end of the sleeve 10 protrudes above this frame and is equipped with a mechanism for the angular locking of said sleeve; in the example ple envisaged realization it was assumed that this mechanism was formed by two nuts 12, but it goes without saying that in more sophisticated machines can use a cylinder or other immobilization system with immediate action.
  • the annular flange 10a is made integral with a horizontal sole 13 having in cross section a dovetail profile on which slides a carriage 14; the latter is maneuvered using a flywheel 15 fixed at the end of a threaded rod 16 which cooperates with a nut 17 secured to the carriage 14 and which is retained axially in an eyelet 18 secured to the sole 13. It is on the carriage 14 that the upper part of the grinding wheel turret 6 is fixed, which is thus capable of being adjusted in position.
  • a sliding guide 19 provided with ball bushings 20 which ensure the precision of its mounting while leaving it free to move axially and angularly.
  • the immobilization of the guide 19 is ensured using an operating rod 21 which selectively cooperates with one or the other of two grooves 19a.
  • This guide 19 passes vertically through the sole 13 through a circular opening, then the carriage 14 and the upper part of the turret 6 through elongated openings which allow the horizontal displacement of said turret. Its lower end 19b is cut to present in section a substantially triangular profile.
  • this guide 19 somehow materializes the axis of orientation of the grinding wheel turret 6, and that also the rod 21 associated with the grooves 19a allows to immobilize it either in the low position of use, or in high eclipsed position.
  • the operator firstly lowers the guide 19 until it reaches the low position and then operates the flywheel 15 to move the turret 6 and bring the working face 9a (fig 3) of the grinding wheel 9 in contact with the tip of the lower part 19b of the guide. It is at this point certain that this face 9a coincides with the axis of rotation of the turret 6.
  • the turret 6 is pivoted so as to engage the grinding wheel 9 in the propeller or slope 33 (FIGS. 3 and 4) of the sharpening cutter, this maneuver being carried out by using the vernier 11 a and lowering the frame 4.
  • This setting mode allows the machine to be adapted almost immediately to the different types of grinding wheels used for sharpening machining tools.
  • the drive spindle 8 can be equipped with a flat grinding wheel or a large tapered grinding wheel since once the working face 9a of this grinding wheel brought into contact with the tip of the lower part 19b of the guide 19, the machine is ready to be used by displaying the cutting angel (value d) on the vernier associated with the carriage 4a or on the dial of the control panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Machine Tool Units (AREA)

Description

La présente invention a trait aux machines destinées à l'affûtage des fraises et autres outils d'usinage.The present invention relates to machines for sharpening cutters and other machining tools.

On sait que dans les machines du genre en question la meule interchangeable d'affûtage est généralement montée avec son moteur électrique d'entraînement sur une tourelle portée à rotation par un bâti susceptible d'être réglé en hauteur le long d'une colonne verticale, elle-même réglable en position transversale par rapport à un banc horizontal. L'opérateur est ainsi en mesure d'amener la partie utile de la meule à sa position exacte désirée pour l'affûtage des outils à travailler, lesquels sont fixés sur une poupée mobile axialement le long du banc précité et sont susceptibles d'être animés d'un mouvement de translation axiale et/ou de déplacement angulaire.We know that in machines of the kind in question the interchangeable grinding wheel is generally mounted with its electric drive motor on a turret carried in rotation by a frame capable of being adjusted in height along a vertical column, itself adjustable in transverse position relative to a horizontal bench. The operator is thus able to bring the useful part of the grinding wheel to its exact desired position for sharpening the tools to be worked, which are fixed on a headstock movable axially along the aforementioned bench and are capable of being animated. an axial translational movement and / or angular displacement.

Bien entendu la partie utile de la meule est profilée en fonction du travail d'affûtage à effectuer, de telle sorte que la broche porte-meule reçoit en fait, au cours de l'utilisation d'une machine considérée, des meules de dimensions très différentes, notamment en épaisseur (longueur suivant l'axe). Certes pour s'affranchir de cette variation on pourrait songer à avoir recours au système de chariot de translation que le Certificat d'Addition français n° 80 994 prévoit d'associer à la broche porte-meule et au moteur d'entraînement pour permettre à la meule d'être amenée au contact d'un dispositif de diamantage destiné à la rectification de la face utile de ladite meule, mais outre le fait que l'agencement général montré dans ce document limite considé-rablement l'étendue du réglage, il y a lieu de considérer que l'utilisateur ne dispose d'aucun moyen propre à permettre de repérer la position de la face utile de la meule par rapport à l'axe d'orientation de la tourelle et à l'axe de l'outil à affûter.Of course, the useful part of the grinding wheel is profiled as a function of the sharpening work to be carried out, so that the grinding spindle receives in fact, during the use of a machine considered, grinding wheels of very large dimensions. different, especially in thickness (length along the axis). Admittedly to overcome this variation we could consider using the trolley system that the French Addition Certificate n ° 80 994 plans to associate with the grinding spindle and the drive motor to allow the grinding wheel to be brought into contact with a diamond-cutting device intended for the rectification of the useful face of said grinding wheel, but in addition to the fact that the general arrangement shown in this document considerably limits the extent of the adjustment, it it should be considered that the user does not have any means suitable for enabling the position of the useful face of the grinding wheel to be identified with respect to the axis of orientation of the turret and to the axis of the tool to sharpen.

Dans ces conditions et compte tenu du caractère orientable de la tourelle porte-meule, l'opérateur doit en tout état de cause se livrer à des calculs compliqués pour déterminer le positionnement exact à affecter à la meule considérée en vue de réaliser un angle de coupe précis sur l'outil à affûter. Ce calcul préalable, déjà gênant sur les machines à réglage manuel, fait en pratique disparaître les avantages de simplicité présentés par les machines d'affûtage modernes à affichage numérique, puisque préalablement à l'affichage l'opérateur doit procéder à la détermination exacte des paramètres.Under these conditions and taking into account the orientable nature of the grinding wheel turret, the operator must in any case carry out complicated calculations to determine the exact positioning to be assigned to the grinding wheel considered in order to achieve a cutting angle precise on the tool to be sharpened. This preliminary calculation, already troublesome on manual adjustment machines, in practice eliminates the simplicity advantages presented by modern sharpening machines with digital display, since before the display the operator must make the exact determination of the parameters .

C'est à cet inconvénient que l'invention entend remédier, et ce en dotant la machine d'un guide éclipsable monté de manière à matérialiser lorsque désiré l'axe d'orientation de la tourelle afin que par translation de la broche porte-meule suivant son axe et compte tenu du déport latéral de cette broche par rapport à l'axe d'orientation précité, on puisse amener la face utile de la meule dans le plan passant par cet axe, moyennant simple mise en contact de ladite face avec le guide éclipsable.It is this drawback that the invention intends to remedy, and this by providing the machine with an eclipsable guide mounted so as to materialize when desired the axis of orientation of the turret so that by translation of the grinding spindle along its axis and taking into account the lateral offset of this spindle with respect to the aforementioned orientation axis, the useful face of the grinding wheel can be brought into the plane passing through this axis, by simply bringing said face into contact with the eclipsable guide.

On comprend qu'une fois ce réglage préalable effectué, l'opérateur est certain de la coïncidence exacte de la partie utile de la meule et de l'axe longitudinal de l'outil à affûter, de telle sorte qu'apreès engagement de la meule dans l'hélice ou pente de l'outil, il lui suffit de déplacer transversalement la colonne pour amener directement la tourelle à l'angle de coupe désiré soit en utilisant un vernier si la machine est du type à réglage manuel, soit en affichant simplement la valeur de l'angle de coupe s'il a affaire à une machine à affichage numérique.It is understood that once this preliminary adjustment has been made, the operator is certain of the exact coincidence of the useful part of the grinding wheel and of the longitudinal axis of the tool to be sharpened, so that after engagement of the grinding wheel in the propeller or slope of the tool, it suffices to move the column transversely to bring the turret directly to the desired cutting angle either by using a vernier if the machine is of the manual adjustment type, or by simply displaying the value of the cutting angle if it is a digital display machine.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est suceptible de procurer:

  • Fig. 1 est une vue partielle en perspective d'une machine d'affûtage comportant application des perfectionnements suivant l'invention.
  • Fig. 2 est une coupe axiale montrant à plus grande échelle l'agencement du bâti réglable et de la tourelle porte-meule de la machine suivant fig. 1.
  • Fig. 3 à 5 illustrent schématiquement l'utilisation de cette machine.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Fig. 1 is a partial perspective view of a sharpening machine comprising application of the improvements according to the invention.
  • Fig. 2 is an axial section showing on a larger scale the arrangement of the adjustable frame and the grinding wheel turret of the machine according to FIG. 1.
  • Fig. 3 to 5 schematically illustrate the use of this machine.

En fig. 1 la référence 1 désigne le banc horizontal fixe de la machine d'affûtage, sur lequel se déplace la poupée 2 pour la fixation de l'outil à travailler, schématisé en 3; la poupée 2 est susceptible soit d'être fixée de manière réglable le long du banc 1, soit d'être animée d'un mouvement longitudinal en va-et-vient, en fonction de la nature de l'affûtage à réaliser; de la même manière et à la façon habituelle l'outil 3 peut, lorsque désiré, être déplacé angulairement par saccades suivant une amplitude variable.In fig. 1 the reference 1 designates the fixed horizontal bench of the sharpening machine, on which the headstock 2 moves for fixing the tool to be worked, shown diagrammatically at 3; the headstock 2 is capable either of being fixed in an adjustable manner along the bench 1, or of being driven in a longitudinal movement back and forth, depending on the nature of the sharpening to be carried out; in the same way and in the usual way the tool 3 can, when desired, be moved angularly by jerks according to a variable amplitude.

La partie inférieure du banc 1 est agencée pour former guide de coulissement pour un chariot transversal 4a, solidaire verticalement d'une colonne 4. Cette dernière supporte de manière réglable un bâti 5 monté en porte-à-faux au-dessus du banc 1. Dans les machines classiques c'est la face inférieure de ce bâti 5 qui porte directement de manière orientable la tourelle 6 à l'intérieur de laquelle est logé le moteur électrique 7 pour l'entrinement de la broche 8 destinée à supporter la meule d'affûtage 9.The lower part of the bench 1 is arranged to form a sliding guide for a transverse carriage 4a, vertically integral with a column 4. The latter supports in an adjustable manner a frame 5 mounted cantilevered above the bench 1. In conventional machines, it is the underside of this frame 5 which directly carries the turret 6 in an orientable manner, inside which is housed the electric motor 7 for driving the spindle 8 intended to support the grinding wheel. sharpening 9.

Dans le présent cas et comme illustré en fig. 2, le bâti 5 est traversé par un manchon vertickal 10 pourvu à sa partie inférieure d'une bride 10a contre laquelle prend appui un disque 11 dont la paroi extérieure porte la graduation 11 a d'un vernier circulaire qui coopère avec un repère 10 b de la bride 10a, ledit disque étant rapporté contre la face inférieure du bâti. L'extrémité supérieure du manchon 10 dépasse au-dessus de ce bâti et est équipée d'un mécanisme pour le blocage angulaire dudit manchon; dans l'exemple de réalisation envisagé on a supposé que ce mécanisme était formé par deux écrous 12, mais il va de soi que dans des machines plus élaborées on peut avoir recours à un vérin ou autre système d'immobilisation à action immédiate.In the present case and as illustrated in fig. 2, the frame 5 is traversed by a vertickal sleeve 10 provided at its lower part with a flange 10a against which bears a disc 11 whose outer wall carries the graduation 11 a of a circular vernier which cooperates with a reference 10 b of the flange 10a, said disc being attached against the underside of the frame. The upper end of the sleeve 10 protrudes above this frame and is equipped with a mechanism for the angular locking of said sleeve; in the example ple envisaged realization it was assumed that this mechanism was formed by two nuts 12, but it goes without saying that in more sophisticated machines can use a cylinder or other immobilization system with immediate action.

La bride annulaire 10a est rendue solidaire d'une semelle horizontale 13 présentant en section transversale un profil en queue d'aronde sur lequel coulisse un chariot 14; la manoeuvre de ce dernier est opérée à l'aide d'un volant 15 fixé en bout d'une tige filetée 16 qui coopère avec un écrou 17 solidaire du chariot 14 et qui est retenue axialement dans un oeillet 18 solidaire de la semelle 13. C'est sur le chariot 14 qu'est fixée la partie supérieure de la tourelle porte-meule 6 qui est aninsi susceptible d'être réglée en position.The annular flange 10a is made integral with a horizontal sole 13 having in cross section a dovetail profile on which slides a carriage 14; the latter is maneuvered using a flywheel 15 fixed at the end of a threaded rod 16 which cooperates with a nut 17 secured to the carriage 14 and which is retained axially in an eyelet 18 secured to the sole 13. It is on the carriage 14 that the upper part of the grinding wheel turret 6 is fixed, which is thus capable of being adjusted in position.

On notera en outre que dans le manchon 10 est engagé un guide coulissant 19 muni de douilles à billes 20 qui assurent la précision de son montage tout en le laissant libre de se déplacer axialement et angulairement. L'immobilisation du guide 19 est assurée à l'aide d'une tige de manoeuvre 21 qui coopère sélectivement avec l'une ou l'autre de deux gorges 19a. Ce guide 19 traverse verticalement la semelle 13 à travers une ouverture circulaire, puis le chariot 14 et la partie supérieure de la tourelle 6 à travers des lumières allongées qui permettent le déplacement horizontal de ladite tourelle. Son extrémité inférieure 19b est taillée pour présenter en section un profil substantiellement triangulaire.Note also that in the sleeve 10 is engaged a sliding guide 19 provided with ball bushings 20 which ensure the precision of its mounting while leaving it free to move axially and angularly. The immobilization of the guide 19 is ensured using an operating rod 21 which selectively cooperates with one or the other of two grooves 19a. This guide 19 passes vertically through the sole 13 through a circular opening, then the carriage 14 and the upper part of the turret 6 through elongated openings which allow the horizontal displacement of said turret. Its lower end 19b is cut to present in section a substantially triangular profile.

On comprend que ce guide 19 matérialise en quelque sorte l'axe d'orientation de la tourelle porte-meule 6, et que par ailleurs la tige 21 associée aux gorges 19a permet de l'immobiliser soit en position basse d'utilisation, soit en position haute éclipsée.We understand that this guide 19 somehow materializes the axis of orientation of the grinding wheel turret 6, and that also the rod 21 associated with the grooves 19a allows to immobilize it either in the low position of use, or in high eclipsed position.

Dans ces conditions, pour régler la machine d'affûtage l'opérateur abaisse tout d'abord le guide 19 jusqu'à atteindre la position basse et il manoeuvre ensuite le volant 15 pour déplacer la tourelle 6 et amener la face de travail 9a (fig. 3) de la meule 9 au contact de la pointe de la partie inférieure 19b du guide. Il est à ce moment certain que cette face 9a coïncide avec l'axe de rotation de la tourelle 6.Under these conditions, to adjust the sharpening machine, the operator firstly lowers the guide 19 until it reaches the low position and then operates the flywheel 15 to move the turret 6 and bring the working face 9a (fig 3) of the grinding wheel 9 in contact with the tip of the lower part 19b of the guide. It is at this point certain that this face 9a coincides with the axis of rotation of the turret 6.

En conséquence, un fois le guide 19 ramené en position haute éclipsée, pour régler la machine en vue de la réalisation ou de la réfection d'un angle de coupe bien déterminé sur la fraise ou autre outil d'usinage 3 monté sur la poupée 2, on fait pivoter la tourelle 6 de manière à engager la meule 9 dans l'hélice ou pente 33 (fig. 3 et 4) de la fraise à affûter, cette manoeuvre s'effectuant en s'aindant du vernier 11 a et en abaissant le bâti 4. Ceci fait il suffit de déplacer transversalement d'une distance d (fig.5) le chariot 4a qui supporte la colonne 4 pour régler l'angle de coupe, lequel peut en conséquence être obtenu soit en s'aidant du vernier linéaire usuel associé au chariot 4a s'il s'agit d'une machine de type manuel, soit en affichant simplement la valeur désirée si l'on a affaire à une machine à affichage numérique. Aucun calcul compliqué n'a à intervenir dans l'un ou l'autre cas puisqu'il s'agit directement d'une distance linéaire donnée d, et ce bien qu'on obtienne un réglage parfaitement précis de la position de la face de travail 9a de la meule 9.Consequently, once the guide 19 has been brought back to the high eclipsed position, to adjust the machine with a view to achieving or repairing a well-defined cutting angle on the cutter or other machining tool 3 mounted on the headstock 2 , the turret 6 is pivoted so as to engage the grinding wheel 9 in the propeller or slope 33 (FIGS. 3 and 4) of the sharpening cutter, this maneuver being carried out by using the vernier 11 a and lowering the frame 4. This done, it suffices to move transversely by a distance d (fig.5) the carriage 4a which supports the column 4 to adjust the cutting angle, which can consequently be obtained either with the help of the vernier usual linear associated with the carriage 4a in the case of a manual type machine, or by simply displaying the desired value if we are dealing with a machine with digital display. No complicated calculation has to intervene in one or the other case since it is directly a given linear distance d, and this although we obtain a perfectly precise adjustment of the position of the face of work 9a of the grinding wheel 9.

Ce mode de réglage permet l'adaptation pratiquement immédiate de la machine aux différents types de meules utilisés pour l'affûtage des outils d'usinage. La broche d'entraînement 8 peut être équipée d'une meule plate ou d'une meule tronconique à grande largeur puisqu'une fois la face utile 9a de cette meule amenée au contact de la pointe de la partie inférieure 19b du guide 19, la machine est prête à être utilisée moyennant affichage de l'angel de coupe (valeur d) sur le vernier associé au chariot 4a ou sur le cadran du tableau de commande.This setting mode allows the machine to be adapted almost immediately to the different types of grinding wheels used for sharpening machining tools. The drive spindle 8 can be equipped with a flat grinding wheel or a large tapered grinding wheel since once the working face 9a of this grinding wheel brought into contact with the tip of the lower part 19b of the guide 19, the machine is ready to be used by displaying the cutting angel (value d) on the vernier associated with the carriage 4a or on the dial of the control panel.

Il doit d'ailleurs être entendu que la description qui précède n'à été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.It should moreover be understood that the foregoing description has only been given by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (3)

1. A machine for grinding machine tools, of the kind comprising a bed (1) for mounting the tool to be ground (3), a column (4) transversely adjustable relative to the aforesaid bed, and a frame (5) movable along the said column, which frame supports a swivelling turret (6) above the bed (1), this turret being equipped with a wheel-bearing spindle (8) capable of being displaced along its axis with the aid of an appropriate adjustment mechanism (13-14-15), characterized in that it also comprises a retractable guide (19) mounted so as to appear, when desired, to indicate the axis of rotation of the turret (6) so that manipulation of the adjustment mechanism (13-14-15), taking into account the lateral offset of the spindle (8) relative to the said axis of rotation, permits the useful face (9a) of the grinding wheel (9) to be brought into the plane passing through this axis simply by bringing the said face into contact with the disappearing guide.
2. A machine in accordance with claim 1, characterized in that the adjustment mechanism comprises a carriage (14) of customary type orientated parallel to the axis of the wheel-bearing spindle (8) and interposed between the upper portion of the turret (6) and the lower portion of the adjustable frame (5) which supports the said turret, which carriage ist, in a manner known »per see, associated with means (15-16-17-18) for its horizontal drive.
3. A machine in accordance with any one of claims 1 and 2, characterized in that the disappearing guide (19) is, by means of ball bushes (20), mounted inside a vertical sleeve (10) which forms the journal for the pivoting of the turret (6) in the frame (5).
EP19800420095 1979-08-02 1980-07-28 Machines for sharpening machining tools Expired EP0023876B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7920343A FR2462232A1 (en) 1979-08-02 1979-08-02 IMPROVEMENTS TO MACHINES FOR SHARPENING MACHINING TOOLS
FR7920343 1979-08-02

Publications (2)

Publication Number Publication Date
EP0023876A1 EP0023876A1 (en) 1981-02-11
EP0023876B1 true EP0023876B1 (en) 1983-05-04

Family

ID=9228736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800420095 Expired EP0023876B1 (en) 1979-08-02 1980-07-28 Machines for sharpening machining tools

Country Status (5)

Country Link
EP (1) EP0023876B1 (en)
JP (1) JPS5656372A (en)
DE (1) DE3062966D1 (en)
ES (1) ES8104033A1 (en)
FR (1) FR2462232A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126055A (en) * 1982-01-25 1983-07-27 Toshiba Corp Working device for oblique groove
JPS6090626A (en) * 1983-10-25 1985-05-21 Mitsubishi Heavy Ind Ltd Spline grinding machine
JPS61201757U (en) * 1985-06-07 1986-12-18
JPS62292363A (en) * 1986-06-12 1987-12-19 Hitachi Seiko Ltd Grinder
DE3804010A1 (en) * 1988-02-10 1989-08-24 Heinz Buessenschuett TOOL GRINDING MACHINE
CN100537140C (en) * 2008-03-28 2009-09-09 重庆三磨海达磨床有限公司 Grinding attachment suitable for freely curved face
DE102012010689A1 (en) 2012-05-30 2013-12-05 Vollmer Werke Maschinenfabrik Gmbh Device for sharpening tools with cutting edges, such as drills, milling cutters or the like
CN103286644B (en) * 2013-06-14 2015-07-01 天津华曼泵业集团有限公司 Milling cutter tool sharpener for screw pump rotor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR80994E (en) * 1963-11-13
FR1330786A (en) * 1962-05-11 1963-06-28 Expl S Clusiennes Et Method and machine for sharpening cutters
JPS5068395U (en) * 1973-10-22 1975-06-18

Also Published As

Publication number Publication date
JPS6327142B2 (en) 1988-06-01
ES493932A0 (en) 1981-04-16
JPS5656372A (en) 1981-05-18
DE3062966D1 (en) 1983-06-09
FR2462232B1 (en) 1981-08-14
EP0023876A1 (en) 1981-02-11
FR2462232A1 (en) 1981-02-13
ES8104033A1 (en) 1981-04-16

Similar Documents

Publication Publication Date Title
EP0023876B1 (en) Machines for sharpening machining tools
WO1997013614A1 (en) Device for measuring or checking an orbitally mobile cylindrical part during machining thereof
US2410828A (en) Chain saw sharpener
CH631647A5 (en) SHARPENING MACHINE FOR TEETH CUTTING TOOLS.
US2213413A (en) Saw grinder
US4040313A (en) Precision circular saw blade grinding machine
US3841174A (en) Apparatus for sharpening different types of circular saws, tools and other cutters having a wide range of diameters
JP5231184B2 (en) Cutting device
US2067179A (en) Saw sharpener
BE553234A (en)
US3958491A (en) Machine tool
US2786370A (en) Lawn mower sharpener
US3993115A (en) Tire truing machine
FR2657035A1 (en) MACHINE FOR SHARPENING HELICOUIDAUX FORESTS.
CH376383A (en) Tool for sharpening tools
US3418757A (en) Lawn mower sharpener
FR2465547A1 (en) Grinder for sharpening tools - locates high and low speed grinders by adaptable tool-holder with controlled tool feed and redresser
EP1693150A1 (en) Relief grinding device for axial and radial machining
FR2479061A1 (en) Machine for sharpening milling wheel etc. - uses stub axle mounted slide on pivotable sector to position and angle wheel w.r.t. grinder on slide secondary
BE458977A (en)
FR2538726A1 (en) Multi-functional machining unit intended to be installed on a workpiece to be machined in order to perform machining operations thereon.
FR2700490A1 (en) Machine tool curvilinear sharpener for variable helix cutters
EP0432063A1 (en) Cutter sharpening machine with floating stone mount
CH509133A (en) Device for sharpening the cutting edges of a drill bit
CH381554A (en) Lateral support device for a part rotated by the headstock of a grinding machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE GB IT SE

17P Request for examination filed

Effective date: 19810418

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19830504

REF Corresponds to:

Ref document number: 3062966

Country of ref document: DE

Date of ref document: 19830609

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910528

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910718

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910824

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920728

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920731

Ref country code: CH

Effective date: 19920731

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920728

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930401