EP0035939B1 - Machine with a rotating implement for copying or finishing operations - Google Patents

Machine with a rotating implement for copying or finishing operations Download PDF

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Publication number
EP0035939B1
EP0035939B1 EP81400336A EP81400336A EP0035939B1 EP 0035939 B1 EP0035939 B1 EP 0035939B1 EP 81400336 A EP81400336 A EP 81400336A EP 81400336 A EP81400336 A EP 81400336A EP 0035939 B1 EP0035939 B1 EP 0035939B1
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EP
European Patent Office
Prior art keywords
template
rotative
shaft
guide
tool
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
EP81400336A
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German (de)
French (fr)
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EP0035939A1 (en
Inventor
Claude Marc
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Comeca Sa Ste
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Comeca Sa Ste
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Publication date
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Publication of EP0035939A1 publication Critical patent/EP0035939A1/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
    • B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
    • B24B17/02—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only

Definitions

  • the present invention relates to a rotary tool machine intended to reproduce on a part the patterns of a template or parent part or to finish a roughed part from a template or parent part.
  • the guides or slides of the tool carriage must be produced in a precise manner and the various members are generally provided with special arrangements limiting their wear, which makes the manufacture of such a machine long and expensive. .
  • this type of machine is more particularly intended for the machining of large series of parts and its use due to its cost cannot be envisaged for small or medium series.
  • the object of the present invention as characterized in the claims below is: the elimination of these drawbacks by using a machine which is simple to produce and inexpensive, particularly intended for machining small series of parts in such a way precise without any adjustment of the position of the workpiece relative to the tool and without particular adjustment of the position of the workpiece relative to the template.
  • Another object of the present invention is to provide a machine of the type defined further with which it is possible to obtain different successive depths of cut without adjusting the position of the part relative to the template.
  • Another object of the invention is the implementation of a machine which does not require qualified personnel for the machining of the parts, which tends to reduce the cost of the finished product despite the small number of parts to be machined in the assumption of use of the machine according to the invention for small series.
  • the rotary tool machine according to the invention can be a machine used for the reproduction of parts from a template or mother piece or a machine of the sander type, used for finishing parts from a template or mother piece .
  • the machine according to the invention for example of the double belt sander type, comprises a frame 1 on which is placed a table 2 provided with at least one work surface 3.
  • the machine In the worktop area, the machine is provided with at least one abrasive rotary tool 4, mounted in a protective casing 5 and provided with at least one guide 6 (fig. 2) cooperating with a template 7 on which is fixed the workpiece 8 previously sketched, the said template and the said part being operated by the user of the machine.
  • at least one abrasive rotary tool 4 mounted in a protective casing 5 and provided with at least one guide 6 (fig. 2) cooperating with a template 7 on which is fixed the workpiece 8 previously sketched, the said template and the said part being operated by the user of the machine.
  • the frame 1 is constituted by four vertical feet 9, of the same length braced at their upper end by two horizontal and parallel beams 10 and by at least one cross member 11 horizontal and perpendicular to said beams at the end of which it is fixed.
  • the longitudinal members 10 are provided with several cylindrical orifices with a vertical axis for the passage of means for fixing the table 2 to the frame 1.
  • the machine is provided with at least three wedges 12 interposed between the side members and the table to adjust the position of the latter relative to the frame and / or to adjust the orthogonality of its work plane relative to the axis of the rotary tool.
  • the table 2 made of metal or the like is in the form of a flat wall, preferably horizontal, of polygonal or curvilinear external contour provided with at least one curvilinear, circular or polygonal contour defining the work plane 3.
  • the contour of the work plane work is such that whatever the position of the user of the machine relative to said contour, it can without any discomfort access the rotary tool.
  • the shape of the worktop outline is such that it also allows the template to be fully disposed on the work surface, despite the position of said template relative to the rotary tool when it works the part.
  • the table is in the form of a rectangle with a longitudinal axis parallel to the side members extended beyond one of its short sides by the work surface 3.
  • This work plan substantially matches the shape of a triangle, the large base of which is perpendicular to the longitudinal axis of the rectangular shape and extends beyond the said shape on either side of its longitudinal sides 13, the said base being wider. than the table.
  • the worktop has two short sides 14 connecting the sides 15 of the triangular shape of the worktop 3 to the longitudinal sides 13 of the rectangular shape of the table 2.
  • the sides 15 are preferably perpendicular to each other. other or form between them an angle greater than a right and are. arranged symmetrically with respect to the longitudinal axis of the rectangular shape of the table.
  • the sides 15 are connected to each other by a rounding for safety reasons obvious to those skilled in the art.
  • the sides 14 of the work surface are perpendicular to the sides 15 to which they are connected or form an obtuse angle with them.
  • the work surface as described is particularly suitable for receiving two rotary tools situated respectively on either side of the longitudinal axis of the table 2.
  • the two rotary abrasive tools are of different grain size to first of all carry out a semi-finishing by working with the tool whose grain size is the most important and a finish by working with the other tool.
  • the user of the machine will engage the previously roughed part and its template on the work surface by one of the short sides 14 and while applying it against the abrasive tool will give it a movement of advance (visualized on Fig. 1 by arrow D) directed on this side 14 towards the area of the work surface located below the longitudinal axis of the table 2.
  • the abrasive tools 4 each consist of an endless abrasive strip partially located in the work plane mounted on rollers 16 and 17 with axes perpendicular to said plane.
  • the abrasive belts are advantageously housed in a protective casing connected to a nozzle 18 for sucking machining waste.
  • This casing is provided with at least two covers mounted on hinges to allow the change of the abrasive belt and / or the rollers 16 and 17.
  • rollers are releasably wedged by any known means on vertical rotary shafts and each engage in an orifice in the table 2 and rotate in bearings located under the said table.
  • the shaft 19 corresponding to the roller 16 is mounted in at least two bearings 20 fixed by any known means to one of the vertical faces of the cross member 11 of the chassis 1.
  • the shaft 21 corresponding to the roller 17 is mounted in at least two bearings 22 fixed on a means for tensioning the strip and for adjusting the parallelism of the two rollers 16 and 17.
  • the shaft 19 beyond its lower bearing 20 is provided with a pulley 23 provided with at least one groove receiving a transmission belt 24 cooperating with a pulley 25 wedged on the output shaft of a motor member 26 secured to the chassis 1.
  • the belt 24 is tensioned by a tensioner 27a known per se, shown diagrammatically in FIG. 1.
  • This tensioner is fixed by any known means to the frame 1 of the machine.
  • the pulley 25 is provided with at least two grooves each receiving a belt 24 for rotating the two rollers 16 of the machine and the two abrasive belts 16.
  • the motor member 26 such as an electric motor is equipped with a member for selecting its direction of rotation and is associated with means for varying the speed of rotation of the abrasive belt 4.
  • the shaft 19 is provided with a collar 27 placed under the roller 16 and at the orifice formed in the table into which the said shaft 19 engages.
  • the upper face of the collar 27 is located above the work surface 3 and the diameter of said collar is less than the diameter of the orifice of the table in which the shaft 19 engages. against the upper face of the collar 27 and under the lower end of the roller 16 is mounted the machining guide 6.
  • the profile of the face 7A is curvilinear and has a succession of hollows and bumps which must be reproduced on the part 9 carried by the template.
  • the guide 6 follows the profile of the reference face 7A so that the workpiece is also driven in advance movement relative to the tool abrasive for reproducing on one of the faces of said part the profile of face 7A.
  • the generator of the rotary tool which penetrates the most into the part 8 is always located in a plane which passes through the axis of rotation of the tool and of the guide and through the point of contact of said guide with the reference face. 7A of the template.
  • This feature makes it possible to reproduce relatively complex profiles on the part without having an imposed angle of attack.
  • the guide 6 is of circular or cylindrical shape, provided with at least one external surface of revolution, for example circular or cylindrical coaxial with the shaft 19 and free in rotation relative to the latter against which abuts. the reference face of the template.
  • the guide 6 is free to rotate relative to the shaft 19 on which it is mounted so that when the said shaft and the tool are rotated the said guide can rotate by friction against the template 7 .
  • the guide 6 is constituted by a rolling member provided with an inner ring 28 coaxial with the shaft 19 on which it is blocked and with an outer ring 29 which is free to rotate relative to said shaft 19.
  • the inner ring 28 is forcibly mounted on the shaft 19 and rests on the upper face of the collar 27.
  • This member also makes it possible to keep the lower end of the roller 16 of the outer ring of the guide at a distance so that the abrasive strip driven by this roller cannot rub against said ring 29.
  • the external radius of the ring 29 is equal to or different from the overall radius of the rotary tool or equal to or different from the roller 16 plus once the thickness of the abrasive strip.
  • the difference between the value of the external radius of the ring 29 and the radius of the rotary tool conditions the value of the maximum penetration of said tool in the part 8.
  • the ring 29 of the rolling member constituting the guide 6 is preferably removable so that the user, depending on the needs of the machining work, can replace it with a ring of larger or greater diameter. small.
  • roller 16 is wedged on the shaft 19 in a removable manner.
  • This arrangement also makes it possible to replace the roller 16 with another roller of larger or smaller diameter, better suited to the profile to be produced on the part 8.
  • the template 7 cooperating with the guide 6 is provided with stops 7B for positioning the workpiece 8.
  • This part is fixed to the template by two lateral flanges 7C known per se.
  • This template is provided with a recess 7D coming to be located under the lower end of the rotary tool so that the face 7A is released from said end when it is in abutment against the guide 6.
  • the template is provided with gripping means such as handles fixed by any known means.
  • the machining guide is constituted by a rolling member such as a ball bearing, coaxial and fixed to the shaft of the tool and by a ring cooperating with the template fixed relative to the ring outside of the bearing by a positioning member secured to the outer ring.
  • the guide 6 comprises a ball bearing 6B mounted in a known manner on the shaft 19, an intermediate member or a ring 30 integral with the outer ring of the bearing and a removable ring 31 fitted and positioned on the member 30 the ring 31 being interchangeable with at least one other ring of different outside diameter.
  • This ring 31 is intended to cooperate with the face 7A of the template 7.
  • the ring 30 is provided with a series of radial holes receiving respectively blocking devices of the ring 31.
  • These members are constituted as known by an elastic member such as a spring acting on a ball which is engaged when the ring 31 is placed in an annular groove 32 formed in the thickness of said ring 31 and open towards its axis.
  • the machining guide 6 has a series of steps or shoulders 6A of different diameters intended to cooperate with the face 7A of the template, so that the user of the machine can choose the cutting depth of the tool without having to dismantle said guide 6.
  • this machining guide is rotatably mounted and fixed in translation on a sleeve 33 coaxial with the shaft 19 on which it is mounted.
  • rolling members 34 are arranged between the sleeve and the guide in a manner known to those skilled in the art.
  • the sleeve 33 is provided with a longitudinal oblong orifice parallel to the axis of the shaft 19.
  • a rotational stop means preferably constituted by a screw 36 engaged in a threaded orifice formed in the shaft 19.
  • the sleeve 33 cooperates with a fork lever 33A articulated to the frame 1 and is provided with a stop means in translation relative to the shaft 19.
  • this means consists of a ball engaged in a radial orifice of the sleeve and pushed towards the rotary shaft by an elastic member.
  • the ball will engage in an annular groove formed in the rotary shaft, the said rotary shaft having, as illustrated, several superimposed grooves.
  • the stepped shape of the guide 6 is produced by stacking rings of different outside diameters.
  • the bearings 22 in which the shaft 21 carrying the roller 17 revolves are mounted on a vertical wall 37 articulated around a horizontal and transverse shaft 38 to the general direction of the belt 4.
  • the shaft 38 is integral with a support member 39 of the belt tensioning device.
  • This member 39 is provided with an adjustable stop 40 opposing the angular movement of the vertical wall 37 around the axis 38 in order to maintain the parallelism of the shaft 22 relative to the shaft 19.
  • the member 39 is integral with a vertical shaft 41 hinged to the frame 1.
  • This shaft is provided with an arm 42 cooperating with a member for tensioning the strip.
  • this member is constituted by a lever 43 provided with a removable counterweight 44.
  • This lever is articulated to the frame and its point of articulation is provided with a rod 45 perpendicular to the arm 42 on which it is supported so that the shaft 17 is capable of a rotational movement around the shaft 41 suitable to stretch the tape.
  • the machine as described is more particularly intended for machining on wooden parts or any other material, complex profiles without the use of qualified personnel.

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

Description

La présente invention a pour objet une machine à outil rotatif destinée à reproduire sur une pièce les motifs d'un gabarit ou pièce mère ou à finir une pièce ébauchée à partir d'un gabarit ou pièce mère.The present invention relates to a rotary tool machine intended to reproduce on a part the patterns of a template or parent part or to finish a roughed part from a template or parent part.

Il est connu dans le cas d'usinage par reproduction d'une pièce préalablement ébauchée ou non de faire appel à des machines dotées d'un organe de fixation de la pièce à usiner et du gabarit sur un plan de travail et d'un outil rotatif tel une bande abrasive déplaçable suivant le contour du gabarit (brevet Français N° 2 229 501It is known in the case of machining by reproduction of a part that has been roughly drawn or not, to use machines provided with a member for fixing the workpiece and the template on a work surface and with a tool. rotatable like an abrasive belt that can be moved along the outline of the template (French patent No. 2,229,501

L'inconvénient de ce type de machine est que l'on doit avant tout usinage régler de manière très précise la position de la pièce par rapport au gabarit et/ou par rapport aux outils.The disadvantage of this type of machine is that before any machining must very precisely adjust the position of the part relative to the template and / or relative to the tools.

Un autre inconvénient réside dans la mobilité de l'outil qui dans le brevet Français N° 2 229 501 est portée en bout de bras articulé qui prend du jeu à l'usage d'où une perte de précision de l'usinage.Another drawback lies in the mobility of the tool which, in French Patent No. 2,229,501, is carried at the end of an articulated arm which takes play when in use, hence a loss of precision in machining.

D'autres machines connues utilisent un chariot porte-outil mobile sur des glissières du plan de travail et qui est doté d'un galet coopérant en guidage avec le gabarit.Other known machines use a mobile tool carriage on slides of the work surface and which is provided with a roller cooperating in guiding with the template.

Pour obtenir un guidage précis de la pièce à usiner les guides ou glissières du chariot porte-outils doivent être réalisées de manière précise et les différents organes sont généralement pourvus d'aménagements spéciaux limitant leur usure ce qui rend la fabrication de telles machine longue et onéreuse.To obtain precise guidance of the workpiece, the guides or slides of the tool carriage must be produced in a precise manner and the various members are generally provided with special arrangements limiting their wear, which makes the manufacture of such a machine long and expensive. .

D'une manière générale, ce type de machine est plus particulièrement destiné à l'usinage de grandes séries de pièces et son emploi de par son coût n'est pas envisageable pour des petites ou moyennes séries.In general, this type of machine is more particularly intended for the machining of large series of parts and its use due to its cost cannot be envisaged for small or medium series.

La présente invention telle qu'elle est caractérisée dans les revendications ci-après a pour but : la suppression de ces inconvénients en mettant en oeuvre une machine simple à réaliser et peu coûteuse, particulièrement destinée à l'usinage de petites séries de pièces de manière précise sans aucun réglage de la position de la pièce à usiner par rapport à l'outil et sans réglage particulier de la position de la pièce par rapport au gabarit.The object of the present invention as characterized in the claims below is: the elimination of these drawbacks by using a machine which is simple to produce and inexpensive, particularly intended for machining small series of parts in such a way precise without any adjustment of the position of the workpiece relative to the tool and without particular adjustment of the position of the workpiece relative to the template.

Un autre but de la présente invention est de réaliser une machine du type défini plus avant avec laquelle il soit possible d'obtenir des profondeurs de passe successives différentes sans réglage de la position de la pièce par rapport au gabarit.Another object of the present invention is to provide a machine of the type defined further with which it is possible to obtain different successive depths of cut without adjusting the position of the part relative to the template.

Un autre but de l'invention est la mise en oeuvre d'une machine qui n'exige pas pour l'usinage des pièces un personnel qualifié ce qui tend à réduire le coût du produit fini malgré le nombre peu important de pièces à usiner dans l'hypothèse d'un usage de la machine selon l'invention pour des petites séries.Another object of the invention is the implementation of a machine which does not require qualified personnel for the machining of the parts, which tends to reduce the cost of the finished product despite the small number of parts to be machined in the assumption of use of the machine according to the invention for small series.

La lecture de la description ci-après dans laquelle l'invention est décrite plus en détail selon une forme préférentielle de réaliation facilitera sa compréhension.

  • - La fig. 1 est une vue de dessus d'une telle machine.
  • - La fig. 2 est une vue de la machine en coupe AA suivant la fig. 1.
  • - Les fig. 3, 4, 5 sont des vues en coupe d'exemples de réalisation du guide d'usinage.
  • - La fig. est une vue en perspective d'un gabarit d'usinage.
  • - Les fig. 7 et 8 sont des vues en coupe BB, CC suivant la fig. 2 du système de mise en tension de la bande abrasive et du réglage du parallèlisme des rouleaux rotatifs.
Reading the description below in which the invention is described in more detail according to a preferred embodiment will facilitate its understanding.
  • - Fig. 1 is a top view of such a machine.
  • - Fig. 2 is a view of the machine in section AA according to FIG. 1.
  • - Figs. 3, 4, 5 are sectional views of exemplary embodiments of the machining guide.
  • - Fig. is a perspective view of a machining template.
  • - Figs. 7 and 8 are sectional views BB, CC according to FIG. 2 of the system for tensioning the abrasive belt and for adjusting the parallelism of the rotating rollers.

La machine à outil rotatif selon l'invention peut être une machine utilisée pour la reproduction de pièces à partir d'un gabarit ou pièce mère ou une machine du type ponceuse, utilisée pour la finition de pièces à partir d'un gabarit ou pièce mère.The rotary tool machine according to the invention can be a machine used for the reproduction of parts from a template or mother piece or a machine of the sander type, used for finishing parts from a template or mother piece .

Telle que représentée, la machine selon l'invention par exemple du type ponceuse à double bande comprend un bâti 1 sur lequel est posée une table 2 pourvue d'au moins un plan de travail 3.As shown, the machine according to the invention, for example of the double belt sander type, comprises a frame 1 on which is placed a table 2 provided with at least one work surface 3.

Dans la zone du plan de travail la machine est pourvue d'au moins un outil rotatif 4 abrasif, monté dans un carter de protection 5 et pourvu d'au moins un guide 6 (fig. 2) coopérant avec un gabarit 7 sur lequel est fixée la pièce à usiner 8 préalablement ébauchée, le dit gabarit et la dite pièce étant manoeuvrée par l'utilisateur de la machine.In the worktop area, the machine is provided with at least one abrasive rotary tool 4, mounted in a protective casing 5 and provided with at least one guide 6 (fig. 2) cooperating with a template 7 on which is fixed the workpiece 8 previously sketched, the said template and the said part being operated by the user of the machine.

Le bâti 1 est constitué par quatre pieds 9 verticaux, de même longueur entretoisés à leur extrémité supérieure par deux longerons 10 horizontaux et parallèles et par au moins une traverse 11 horizontale et perpendiculaire aux dits longerons en bout desquels elle est fixée.The frame 1 is constituted by four vertical feet 9, of the same length braced at their upper end by two horizontal and parallel beams 10 and by at least one cross member 11 horizontal and perpendicular to said beams at the end of which it is fixed.

Les longerons 10 sont dotés de plusieurs orifices cylindriques d'axe vertical de passage de moyen de fixation de la table 2 au bâti 1.The longitudinal members 10 are provided with several cylindrical orifices with a vertical axis for the passage of means for fixing the table 2 to the frame 1.

De préférence, la machine est pourvue d'au moins trois cales 12 interposées entre les longerons et la table pour régler la position de celle-ci par rapport au bâti et/ou pour régler l'orthogonalité de son plan de travail par rapport à l'axe de l'outil rotatif.Preferably, the machine is provided with at least three wedges 12 interposed between the side members and the table to adjust the position of the latter relative to the frame and / or to adjust the orthogonality of its work plane relative to the axis of the rotary tool.

La table 2 en métal ou autre se présente sous la forme d'une paroi plane de préférence horizontale de contour extérieur polygonal ou curviligne pourvue d'au moins un contour curviligne, circulaire ou polygonal définissant le plan de travail 3. Le contour du plan de travail est tel que quelle que soit la position de l'utilisateur de la machine par rapport au dit contour, celui-ci puisse sans aucune gêne accéder à l'outil rotatif. La forme du contour du plan de travail est telle qu'elle permet également de disposer intégralement le gabarit sur le plan de travail et ceci malgré la position du dit gabarit par rapport à l'outil rotatif lorsqu'il usine la pièce.The table 2 made of metal or the like is in the form of a flat wall, preferably horizontal, of polygonal or curvilinear external contour provided with at least one curvilinear, circular or polygonal contour defining the work plane 3. The contour of the work plane work is such that whatever the position of the user of the machine relative to said contour, it can without any discomfort access the rotary tool. The shape of the worktop outline is such that it also allows the template to be fully disposed on the work surface, despite the position of said template relative to the rotary tool when it works the part.

Selon une forme préférentielle de réalisation comme représentée en fig. 1 la table se présente sous la forme d'un rectangle d'axe longitudinal parallèle aux longerons prolongé au delà d'un de ses petits côtés par le plan de travail 3.According to a preferred embodiment as shown in FIG. 1 the table is in the form of a rectangle with a longitudinal axis parallel to the side members extended beyond one of its short sides by the work surface 3.

Ce plan de travail épouse sensiblement la forme d'un triangle dont la grande base est perpendiculaire à l'axe longitudinal de la forme rectangulaire et déborde la dite forme de part et d'autre de ses côtés longitudinaux 13, la dite base étant plus large que la table.This work plan substantially matches the shape of a triangle, the large base of which is perpendicular to the longitudinal axis of the rectangular shape and extends beyond the said shape on either side of its longitudinal sides 13, the said base being wider. than the table.

Le plan de travail est doté de deux petits côtés 14 raccordant les côtés 15 de la forme triangulaire du plan de travail 3 aux côtés 13 longitudinaux de la forme rectangulaire de la table 2. Les côtés 15 sont de préférence perpendiculaires l'un à l'autre ou forment entre eux un angle supérieur à un droit et sont. disposés de manière symétrique par rapport à l'axe longitudinal de la forme rectangulaire de la table.The worktop has two short sides 14 connecting the sides 15 of the triangular shape of the worktop 3 to the longitudinal sides 13 of the rectangular shape of the table 2. The sides 15 are preferably perpendicular to each other. other or form between them an angle greater than a right and are. arranged symmetrically with respect to the longitudinal axis of the rectangular shape of the table.

Avantageusement les côtés 15 sont raccordés l'un à l'autre par un arrondi pour des raisons de sécurité évidentes à l'homme de l'art.Advantageously, the sides 15 are connected to each other by a rounding for safety reasons obvious to those skilled in the art.

En outre, pour diminuer l'empattement de la machine les côtés 14 du plan de travail sont perpendiculaires aux côtés 15 auxquels ils se raccordent ou forment avec ceux-ci un angle obtus.In addition, to reduce the wheelbase of the machine, the sides 14 of the work surface are perpendicular to the sides 15 to which they are connected or form an obtuse angle with them.

Le plan de travail tel que décrit est particulièrement adapté à recevoir deux outils rotatifs situés respectivement de part et d'autre de l'axe longitudinal de la table 2.The work surface as described is particularly suitable for receiving two rotary tools situated respectively on either side of the longitudinal axis of the table 2.

De préférence les deux outils abrasifs rotatifs sont de grosseur de grain différente pour réaliser tout d'abord une demifinition en travaillant avec l'outil dont la grosseur de grain est la plus important et une finition en travaillant avec l'autre outil.Preferably, the two rotary abrasive tools are of different grain size to first of all carry out a semi-finishing by working with the tool whose grain size is the most important and a finish by working with the other tool.

Pour cela l'utilisateur de la machine va engager la pièce préalablement ébauchée et son gabarit sur le plan de travail par un des petits côtés 14 et tout en l'appliquant contre l'outil abrasif va lui imprimer un mouvement d'avance (visualisé sur la fig. 1 par la flèche D) dirigé de ce côté 14 vers la zone du plan de travail située en deçà de l'axe longitudinal de la table 2.For this, the user of the machine will engage the previously roughed part and its template on the work surface by one of the short sides 14 and while applying it against the abrasive tool will give it a movement of advance (visualized on Fig. 1 by arrow D) directed on this side 14 towards the area of the work surface located below the longitudinal axis of the table 2.

Après réalisation de la demi-finition telle que représentée en fig. 1 l'utilisateur en engageant la pièce et son gabarit par le petit côté 14 symétrique au précédent par rapport à l'axe longitudinal de la table procède à la finition avec le deuxième outil rotatif.After completion of the half-finish as shown in fig. 1 the user by engaging the part and its template by the small side 14 symmetrical to the previous one with respect to the longitudinal axis of the table proceeds to the finishing with the second rotary tool.

Selon une forme préférentielle de réalisation les outils abrasifs 4 sont constitués chacun par une bande abrasive sans fin partiellement située dans le plan de travail montée sur des galets 16 et 17 d'axes perpendiculaires au dit plan. Les bandes abrasives sont avantageusement logées dans un carter de protection raccordé à une buse 18 d'aspiration des déchets d'usinage.According to a preferred embodiment, the abrasive tools 4 each consist of an endless abrasive strip partially located in the work plane mounted on rollers 16 and 17 with axes perpendicular to said plane. The abrasive belts are advantageously housed in a protective casing connected to a nozzle 18 for sucking machining waste.

Ce carter est pourvu d'au moins deux couvercles montés sur charnières pour permettre le changement de la bande abrasive et/ou des galets 16 et 17.This casing is provided with at least two covers mounted on hinges to allow the change of the abrasive belt and / or the rollers 16 and 17.

Ces galets sont calés de manière amovible par tous moyens connus sur des arbres rotatifs verticaux et s'engagent chacun dans un orifice ménagé dans la table 2 et tourillonnent dans des paliers situés sous la dite table.These rollers are releasably wedged by any known means on vertical rotary shafts and each engage in an orifice in the table 2 and rotate in bearings located under the said table.

L'arbre 19 correspondant au galet 16 est monté dans au moins deux paliers 20 fixés par tous moyens connus à une des faces verticales de la traverse 11 du chassis 1.The shaft 19 corresponding to the roller 16 is mounted in at least two bearings 20 fixed by any known means to one of the vertical faces of the cross member 11 of the chassis 1.

L'arbre 21 correspondant au galet 17 est monté dans au moins deux paliers 22 fixés sur un moyen de mise en tension de la bande et de réglage du parallèlisme des deux galets 16 et 17. L'arbre 19 au-delà de son palier inférieur 20 est doté d'une poulie 23 pourvue d'au moins une gorge recevant une courroie de transmission 24 coopérant avec une poulie 25 calée sur l'arbre de sortie d'un organe moteur 26 solidaire du chassis 1.The shaft 21 corresponding to the roller 17 is mounted in at least two bearings 22 fixed on a means for tensioning the strip and for adjusting the parallelism of the two rollers 16 and 17. The shaft 19 beyond its lower bearing 20 is provided with a pulley 23 provided with at least one groove receiving a transmission belt 24 cooperating with a pulley 25 wedged on the output shaft of a motor member 26 secured to the chassis 1.

La courroie 24 est mise en tension par un tendeur 27a connu en soit, représenté schématiquement en fig. 1.The belt 24 is tensioned by a tensioner 27a known per se, shown diagrammatically in FIG. 1.

Ce tendeur est fixé par tous moyens connus au bâti 1 de la machine.This tensioner is fixed by any known means to the frame 1 of the machine.

La poulie 25 est dotée d'au moins deux gorges recevant chacune une courroie 24 pour entraîner en rotation les deux galets 16 de la machine et les deux bandes abrasives 16.The pulley 25 is provided with at least two grooves each receiving a belt 24 for rotating the two rollers 16 of the machine and the two abrasive belts 16.

Avantageusement, l'organe moteur 26 tel un moteur électrique est équipé d'un organe de selection de son sens de rotation et est associé à un moyen de variation de la vitesse de rotation de la bande abrasive 4.Advantageously, the motor member 26 such as an electric motor is equipped with a member for selecting its direction of rotation and is associated with means for varying the speed of rotation of the abrasive belt 4.

L'arbre 19 est doté d'un collet 27 disposé sous le galet 16 et au niveau de l'orifice ménagé dans la table dans laquelle s'engage le dit arbre 19.The shaft 19 is provided with a collar 27 placed under the roller 16 and at the orifice formed in the table into which the said shaft 19 engages.

La face supérieure du collet 27 est située au-dessus du plan de travail 3 et le diamètre du dit collet est inférieur au diamètre de l'orifice de la table dans lequel s'engage l'arbre 19. Contre la face supérieure du collet 27 et sous l'extrémité basse du galet 16 est monté le guide d'usinage 6.The upper face of the collar 27 is located above the work surface 3 and the diameter of said collar is less than the diameter of the orifice of the table in which the shaft 19 engages. Against the upper face of the collar 27 and under the lower end of the roller 16 is mounted the machining guide 6.

Contre ce guide en cours d'usinage vient buter la face de référence 7A du gabarit 7.Against this guide during machining abuts the reference face 7A of the template 7.

Dans l'exemple de réalisation représenté en fig. 1, le profil de la face 7A est curviligne et présente une succession de creux et de bosses qui doivent être reproduits sur la pièce 9 portée par le gabarit.In the embodiment shown in fig. 1, the profile of the face 7A is curvilinear and has a succession of hollows and bumps which must be reproduced on the part 9 carried by the template.

Lorsque l'utilisateur imprime à la pièce et à son gabarit un mouvement d'avance le guide 6 suit le profil de la face de référence 7A en sorte que la pièce soit également animée d'un mouvement d'avance par rapport à l'outil abrasif pour reproduire sur une des faces de la dite pièce le profil de la face 7A. La génératrice de l'outil rotatif qui pénètre le plus dans la pièce 8 est toujours située dans un plan qui passe par l'axe de rotation de l'outil et du guide et par le point de contact du dit guide avec la face de référence 7A du gabarit.When the user prints an advance movement on the workpiece and its template, the guide 6 follows the profile of the reference face 7A so that the workpiece is also driven in advance movement relative to the tool abrasive for reproducing on one of the faces of said part the profile of face 7A. The generator of the rotary tool which penetrates the most into the part 8 is always located in a plane which passes through the axis of rotation of the tool and of the guide and through the point of contact of said guide with the reference face. 7A of the template.

Cette condition doit être remplie quelque soit la position de la pièce 8 en cours d'usinage et de son gabarit par rapport à l'axe longitudinal de la machine.This condition must be fulfilled whatever the position of the part 8 during machining and of its template with respect to the longitudinal axis of the machine.

Cette particularité permet de reproduire sur la pièce des profils relativement complexes sans avoir d'angle d'attaque imposé.This feature makes it possible to reproduce relatively complex profiles on the part without having an imposed angle of attack.

A cet effet, le guide 6 est de forme circulaire ou cylindrique, doté d'au moins une surface extérieure de révolution, par exemple circulaire ou cylindrique coaxiale à l'arbre 19 et libre en rotation par rapport à celui-ci contre laquelle vient buter la face de référence du gabarit.To this end, the guide 6 is of circular or cylindrical shape, provided with at least one external surface of revolution, for example circular or cylindrical coaxial with the shaft 19 and free in rotation relative to the latter against which abuts. the reference face of the template.

Le guide 6 est libre en rotation par rapport à l'arbre 19 sur lequel il est monté en sorte que lorsque le dit arbre et l'outil sont animés d'un mouvement de rotation le dit guide puisse faire rotation par friction contre le gabarit 7.The guide 6 is free to rotate relative to the shaft 19 on which it is mounted so that when the said shaft and the tool are rotated the said guide can rotate by friction against the template 7 .

De préférence le guide 6 est constitué par un organe de roulement doté d'une bague intérieure 28 coaxiale à l'arbre 19 sur lequel elle se bloque et d'une bague extérieure 29 libre en rotation par rapport au dit arbre 19.Preferably, the guide 6 is constituted by a rolling member provided with an inner ring 28 coaxial with the shaft 19 on which it is blocked and with an outer ring 29 which is free to rotate relative to said shaft 19.

La bague intérieure 28 est montée en force sur l'arbre 19 et repose sur la face supérieure du collet 27.The inner ring 28 is forcibly mounted on the shaft 19 and rests on the upper face of the collar 27.

Entre la dite bague et l'extrémité basse du galet 16 est disposé un organe de blocage en translation du guide 6 par rapport à l'arbre 19.Between said ring and the lower end of the roller 16 is arranged a member for translational locking of the guide 6 relative to the shaft 19.

Ce organe permet également de maintenir à distance l'extrémité basse du galet 16 de la bague extérieure du guide en sorte que la bande abrasive entraînée par ce galet ne puisse frotter contre la dite bague 29.This member also makes it possible to keep the lower end of the roller 16 of the outer ring of the guide at a distance so that the abrasive strip driven by this roller cannot rub against said ring 29.

Le rayon extérieur de la bague 29 est égal ou différent du rayon hors tout de l'outil rotatif ou égal ou différent du galet 16 plus une fois l'épaisseur de la bande abrasive. La différence entre la valeur du rayon extérieur de la bague 29 et le rayon de l'outil rotatif conditionne la valeur de la pénétration maximale du dit outil dans la pièce 8.The external radius of the ring 29 is equal to or different from the overall radius of the rotary tool or equal to or different from the roller 16 plus once the thickness of the abrasive strip. The difference between the value of the external radius of the ring 29 and the radius of the rotary tool conditions the value of the maximum penetration of said tool in the part 8.

Pour régler la profondeur de passe la bague 29 de l'organe de roulement constituant le guide 6 est de préférence amovible en sorte que l'utilisateur en fonction des besoins du travail d'usinage puisse le remplacer par une bague de diamètre plus grand ou plus petit.To adjust the depth of the pass, the ring 29 of the rolling member constituting the guide 6 is preferably removable so that the user, depending on the needs of the machining work, can replace it with a ring of larger or greater diameter. small.

A cet effet le galet 16 est calé sur l'arbre 19 de manière démontable.For this purpose the roller 16 is wedged on the shaft 19 in a removable manner.

Cette disposition permet également le remplacement du galet 16 par un autre galet de plus grand ou de plus petit diamètre, mieux adapté au profil à réaliser sur la pièce 8.This arrangement also makes it possible to replace the roller 16 with another roller of larger or smaller diameter, better suited to the profile to be produced on the part 8.

Comme représenté en fig. 6, le gabarit 7 coopérant avec le guide 6 est doté de butées 7B de positionnement de la pièce à usiner 8.As shown in fig. 6, the template 7 cooperating with the guide 6 is provided with stops 7B for positioning the workpiece 8.

Cette pièce est fixée au gabarit par deux brides latérales 7C connues en soit.This part is fixed to the template by two lateral flanges 7C known per se.

Ce gabarit est pourvu d'un décrochement 7D venant se situer sous l'extrémité basse de l'outil rotatif en sorte que la face 7A soit dégagée de la dite extrémité lorsqu'elle est en appui contre le guide 6.This template is provided with a recess 7D coming to be located under the lower end of the rotary tool so that the face 7A is released from said end when it is in abutment against the guide 6.

Avantageusement le gabarit est doté de moyens de préhension tels que des poignées fixées par tous moyens connus.Advantageously, the template is provided with gripping means such as handles fixed by any known means.

Selon une autre forme de réalisation, le guide d'usinage est constitué par un organe de roulement tel un roulement à billes, coaxial et fixé à l'arbre de l'outil et par une bague coopérant avec le gabarit calée par rapport à la bague extérieure du du roulement par un organe de positionnement solidaire de la bague extérieure.According to another embodiment, the machining guide is constituted by a rolling member such as a ball bearing, coaxial and fixed to the shaft of the tool and by a ring cooperating with the template fixed relative to the ring outside of the bearing by a positioning member secured to the outer ring.

Comme représenté en fig.4 le guide 6 comprend un roulement à billes 6B monté de manière connue sur l'arbre 19, un organe intermédiaire ou une bague 30 solidaire de la bague extérieure du roulement et une bague 31 amovible emmanchée et positionnée sur l'organe 30 la bague 31 étant interchangeable avec au moins une autre bague de diamètre extérieur différent.As shown in fig.4 the guide 6 comprises a ball bearing 6B mounted in a known manner on the shaft 19, an intermediate member or a ring 30 integral with the outer ring of the bearing and a removable ring 31 fitted and positioned on the member 30 the ring 31 being interchangeable with at least one other ring of different outside diameter.

Cette bague 31 est destinée à coopérer avec la face 7A du gabarit 7.This ring 31 is intended to cooperate with the face 7A of the template 7.

La bague 30 est pourvue d'une série d'orifices radiaux recevant respectivement des dispositifs de blocage de la bague 31.The ring 30 is provided with a series of radial holes receiving respectively blocking devices of the ring 31.

Ces organes sont constitués comme connu par un organe élastique tel un ressort agissant sur une bille qui est engagée lorsque la bague 31 est mise en place dans une gorge annulaire 32 ménagée dans l'épaisseur de la dite bague 31 et ouverte vers son axe.These members are constituted as known by an elastic member such as a spring acting on a ball which is engaged when the ring 31 is placed in an annular groove 32 formed in the thickness of said ring 31 and open towards its axis.

Selon une autre forme de réalisation comme représentée en fig.5, le guide d'usinage 6 présente une série de gradins ou d'épaulements 6A de diamètres différents destinés à coopérer avec la face 7A du gabarit, en sorte que l'utilisateur de la machine puisse choisir la profondeur de passe de l'outil sans avoir à démonter le dit guide 6.According to another embodiment as shown in fig.5, the machining guide 6 has a series of steps or shoulders 6A of different diameters intended to cooperate with the face 7A of the template, so that the user of the machine can choose the cutting depth of the tool without having to dismantle said guide 6.

A cet effet, ce guide d'usinage est monté rotatif et fixé en translation sur une douille 33 coaxiale à l'arbre 19 sur lequel elle est montée.To this end, this machining guide is rotatably mounted and fixed in translation on a sleeve 33 coaxial with the shaft 19 on which it is mounted.

De préférence, des organes de roulement 34 sont disposés entre la douille et le guide de manière connue de l'homme de l'art.Preferably, rolling members 34 are arranged between the sleeve and the guide in a manner known to those skilled in the art.

La douille 33 est pourvue d'un orifice oblong longitudinal parallèle à l'axe de l'arbre 19.The sleeve 33 is provided with a longitudinal oblong orifice parallel to the axis of the shaft 19.

Dans cet orifice est engagé un moyen d'arrêt en rotation constitué de préférence par une vis 36 engagée dans un orifice fileté ménagé dans l'arbre 19.In this orifice is engaged a rotational stop means preferably constituted by a screw 36 engaged in a threaded orifice formed in the shaft 19.

Pour disposer un des épaulements 6A du galet 6 en regard de la face 7A du gabarit 7 et pour le bloquer dans cette position la douille 33 coopère avec un levier à fourche 33A articulé au bâti 1 et est pourvue d'un moyen d'arrêt en translation par rapport à l'arbre 19.To place one of the shoulders 6A of the roller 6 opposite the face 7A of the template 7 and to block it in this position, the sleeve 33 cooperates with a fork lever 33A articulated to the frame 1 and is provided with a stop means in translation relative to the shaft 19.

Comme connu ce moyen est constitué par une bille engagée dans un orifice radial de la douille et poussée vers l'arbre rotatif par un organe élastique.As known, this means consists of a ball engaged in a radial orifice of the sleeve and pushed towards the rotary shaft by an elastic member.

En fonction de l'épaulement choisi pour coopérer avec la face de référence 7A du gabarit la bille va s'engager dans une rainure annulaire ménagée dans l'arbre rotatif, le dit arbre rotatif présentant comme illustré plusieurs rainures superposées.Depending on the shoulder chosen to cooperate with the reference face 7A of the template, the ball will engage in an annular groove formed in the rotary shaft, the said rotary shaft having, as illustrated, several superimposed grooves.

Selon une variante de réalisation la forme en gradin du guide 6 est réalisée par l'empilage des bagues de diamètres extérieurs différents.According to an alternative embodiment, the stepped shape of the guide 6 is produced by stacking rings of different outside diameters.

Afin de régler le parallèlisme des axes des galets 16 et 17 coopérant avec la même bande abrasive 4 les paliers 22 dans lesquels tourillonne l'arbre 21 porteur du galet 17 sont montés sur une parois verticale 37 articulée autour d'un arbre 38 horizontal et transversal à la direction générale de la bande 4. L'arbre 38 est solidaire d'un organe support 39 du dispositif de tension de la bande.In order to adjust the parallelism of the axes of the rollers 16 and 17 cooperating with the same abrasive belt 4 the bearings 22 in which the shaft 21 carrying the roller 17 revolves are mounted on a vertical wall 37 articulated around a horizontal and transverse shaft 38 to the general direction of the belt 4. The shaft 38 is integral with a support member 39 of the belt tensioning device.

Cet organe 39 est doté d'une butée 40 réglable s'opposant au mouvement angulaire de la paroi verticale 37 autour de l'axe 38 afin de conserver le parallèlisme de l'arbre 22 par rapport à l'arbre 19.This member 39 is provided with an adjustable stop 40 opposing the angular movement of the vertical wall 37 around the axis 38 in order to maintain the parallelism of the shaft 22 relative to the shaft 19.

L'organe 39 est solidaire d'un arbre 41 vertical articulé au bâti 1.The member 39 is integral with a vertical shaft 41 hinged to the frame 1.

Cet arbre est pourvu d'un bras 42 coopérant avec un organe de mise en tension de la bande.This shaft is provided with an arm 42 cooperating with a member for tensioning the strip.

Avantageusement, cet organe est constitué par un levier 43 doté d'un contre poids 44 amovible.Advantageously, this member is constituted by a lever 43 provided with a removable counterweight 44.

Ce levier est articulé au bâti et son point d'articulation est pourvu d'une tige 45 perpendiculaire au bras 42 sur lequel elle s'appuie pour que l'arbre 17 soit susceptible d'un mouvement de rotation autour de l'arbre 41 apte à tendre la bande.This lever is articulated to the frame and its point of articulation is provided with a rod 45 perpendicular to the arm 42 on which it is supported so that the shaft 17 is capable of a rotational movement around the shaft 41 suitable to stretch the tape.

La machine telle que décrite est plus particulièrement destinée à l'usinage sur des pièces en bois ou tous autres matériaux, de profils complexes sans emploi de personnel qualifié.The machine as described is more particularly intended for machining on wooden parts or any other material, complex profiles without the use of qualified personnel.

Claims (10)

1. Rotative machine tool for duplicating or finishing works, especially for machining of the contour at least of a piece (8) fixed down flat above a duplicating template (7), the mentioned machine being constituted of a frame (1) upon which is set a working table (2) equiped at least with a working-plane (3) horizontal in the area of which is situated or at least partly situated a tool (4) fixed on a vertical rotative shaft (19) noticeably above a cylindric guide (6) mounted loose on the same axis above the level of the working plane so that it could cooperate with the edge of the template (7), the set : template and piece being movable on the working plane, the caracteristic of this later is that the cylindric guide (6) includes means liable to maintain the set template, piece for machining at différent distances of the tool (4) to permit several overs of the contour of the mentioned piece at different depths according to the shape of the contour of the mentioned template (7).
2. Rotative machine tool according to the claim 1 characterized by the following: the mentioned guide (6) includes at least a cylindric external ring of guidance (29) cr (31) interchangeable with an other cylindric ring of external different diameter so that their consecutive utilization on the vertical shaft (19) of the same tool (4) or on the shaft of a tool of diameter égal to that of the first tool allows to effectuate several overs of machining without dismounting the piece (8) and the template (7).
3. Rotative machine tool according to the claim 1 and 2 characterized by the following: the guide (6) is constituted by a bearing of typ ball or roller bearing or others, the internal ring (28) of which is fixed on the rotative shaft (19) of the tool and the external ring (29) is movable and interchangeable with at least an other external ring of different external diameter so that their succe- sive utilization, beginning by that of superior diameter to that of inferior diameter allows to effectuate several overs of machining following the shapes given by the template.
4. Rotative machine tool according to the claim 1, characterized by the following: the guide of machining presents a series of joggles (6A) or shoulders of différent diameters cooperating separately with the reference face of the template (7) and the mentionned guide (6) cooperates with a mean (33) insuring its mobility in translation according to the shaft (19) of the tool and insuring its immobilization in translation according to the mentioned shaft in order to locate the joggle (6A) selected in front of the reference face of the template (7).
5. Rotative machine tool according to the claim 1 and 4, characterized by the following: the mean includes a bushing (33) upon which is mounted by rotative way the guide (6), the bushing is fitted on the shaft (19) of the tool so that it would be free in translation and fix in rotation according to the mentioned shaft and coopering with control systems (33A) of its translation according to the mentioned shaft and with means insuring the locating of the mentioned bushing according to the mentioned shaft.
6. Rotative machine tool according to the claim 1, 4 and 5 characterized by the following: the shape of the joggle of the machining guide (6) is realized by stacking of rings of different external diameter.
7. Rotative machine tool according to the claim 1, characterized by the following: the mentioned template (7) is equiped with a stand off alowing to back off its reference face from the low extremity of the rotative tool (4).
8. Rotative machine tool according to the claim 1, characterized by the following: the contour of polygonal circular or curvilinear shape of the working plane (3) of the table (2) presents at least one connection side (14) to the profile of the table and perpendicular or transversal to the travel movement of the template (7) and of the piece (8) according to the rotative tool (4).
9. Rotative machine tool according to the claim 1 and 8 characterized by the following: the contour of the working plane is triangular and is connected to the profile of the table (2) by two transversal sides (14) to the travel direction of the template (7) and of the piece what allows, whatever the position of the user according to the mentioned contour, that this one could free and easy axed to one and to the other of the tools (4).
10. Rotative machine tool according to the claim 1 and each of the preceding claiming being characterized by the following: it includes on the working plane two rotative tools (4) constitued by two bands without end drived by rotation.
EP81400336A 1980-03-06 1981-03-04 Machine with a rotating implement for copying or finishing operations Expired EP0035939B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8005112A FR2477455A1 (en) 1980-03-06 1980-03-06 ROTARY TOOL MACHINE FOR REPRODUCTION OR FINISHING WORK
FR8005112 1980-03-06

Publications (2)

Publication Number Publication Date
EP0035939A1 EP0035939A1 (en) 1981-09-16
EP0035939B1 true EP0035939B1 (en) 1983-05-25

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EP81400336A Expired EP0035939B1 (en) 1980-03-06 1981-03-04 Machine with a rotating implement for copying or finishing operations

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EP (1) EP0035939B1 (en)
DE (1) DE3160339D1 (en)
FR (1) FR2477455A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210069853A1 (en) * 2019-09-11 2021-03-11 Eriksson Teknik Ab Automatic blade holder
US11878386B2 (en) 2019-09-11 2024-01-23 Prosharp Inc. Automatic blade holder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104291A1 (en) * 1982-09-29 1984-04-04 Société CO.ME.CA. S.A. Machine with turning tool for reproduction and finishing work and especially for treating the outline of a piece fitted on a reproduction template
GB2255922B (en) * 1991-05-24 1994-07-20 Stephen Jack Wylde Lens surface former and polishing tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE419717A (en) *
GB939438A (en) * 1900-01-01
US1905190A (en) * 1928-11-24 1933-04-25 Lisa Silvester Marble working machine
FR1387314A (en) * 1963-12-20 1965-01-29 Grinding machine according to the contour of a gauge
GB984926A (en) * 1963-02-21 1965-03-03 Luciano Cuoghi Improvements in and relating to edge-grinding machines
FR2185283A5 (en) * 1972-05-15 1973-12-28 Toyoda Machine Works Ltd
FR2229501A1 (en) * 1973-05-17 1974-12-13 Petitjean Marcel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE817192A (en) * 1974-07-02 1974-11-04 Fashioning round corners on glass sheet automatically - using a grinding machine following a templet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE419717A (en) *
GB939438A (en) * 1900-01-01
US1905190A (en) * 1928-11-24 1933-04-25 Lisa Silvester Marble working machine
GB984926A (en) * 1963-02-21 1965-03-03 Luciano Cuoghi Improvements in and relating to edge-grinding machines
FR1387314A (en) * 1963-12-20 1965-01-29 Grinding machine according to the contour of a gauge
FR2185283A5 (en) * 1972-05-15 1973-12-28 Toyoda Machine Works Ltd
FR2229501A1 (en) * 1973-05-17 1974-12-13 Petitjean Marcel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210069853A1 (en) * 2019-09-11 2021-03-11 Eriksson Teknik Ab Automatic blade holder
US11806826B2 (en) * 2019-09-11 2023-11-07 Prosharp Inc. Automatic blade holder
US11878386B2 (en) 2019-09-11 2024-01-23 Prosharp Inc. Automatic blade holder

Also Published As

Publication number Publication date
DE3160339D1 (en) 1983-07-07
FR2477455A1 (en) 1981-09-11
FR2477455B1 (en) 1983-09-30
EP0035939A1 (en) 1981-09-16

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