EP2995420A1 - Belt grinding device for a planar surface of a workpiece mounted on a lathe - Google Patents

Belt grinding device for a planar surface of a workpiece mounted on a lathe Download PDF

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Publication number
EP2995420A1
EP2995420A1 EP15185066.6A EP15185066A EP2995420A1 EP 2995420 A1 EP2995420 A1 EP 2995420A1 EP 15185066 A EP15185066 A EP 15185066A EP 2995420 A1 EP2995420 A1 EP 2995420A1
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EP
European Patent Office
Prior art keywords
support
plane
abrasive belt
abrasive
strip
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.)
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Application number
EP15185066.6A
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German (de)
French (fr)
Inventor
Christophe Gourgues
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Individual
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Individual
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Publication of EP2995420A1 publication Critical patent/EP2995420A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/10—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a rigid member, e.g. pressure bar, table, pressing or supporting the belt over substantially its whole span
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/04—Hand tools or other devices for non-rotary grinding, polishing, or stropping resilient; with resiliently-mounted operative surface

Definitions

  • the invention relates to a machine for a conventional or digital machining lathe.
  • the piece can be metal, wood, plastic, composite etc ...
  • the canvas is held by the hands of the operator and the latter applies the tape on the part that rotates with a force it does not control.
  • a tool FR 2 966 071 comprising a support provided with means for mechanically holding the two ends of an abrasive cloth web bearing exclusively on two linear bearing surfaces spaced apart from each other.
  • This support is therefore like an aluminum block, a so-called front face is formed of two secant surfaces arranged in V, the strip bears on the two free edges of the vee and is stretched when the strip is brought into contact with the room. This tension increases if you keep getting closer to the room. The strip never comes into contact with the front face of the support other than at the two free edges.
  • the support is fixed on the lathe via a mast and a carriage which allows to approach the device of the piece to be polished.
  • This tool is made to work cylindrical parts of revolution or conical parts.
  • the risk is the accident.
  • the invention proposes to provide a solution to the risk of accident.
  • the subject of the invention is a device for shaping to act on a flat surface comprising a support provided with means for holding mechanically the two ends of an abrasive belt this device being characterized in that it comprises a flat support located at the rear of the abrasive belt in contact therewith which flat support is secured to the means for holding the strip and the set is mounted swiveling and flexible.
  • a flattening device 1 for flat surface of an object fixed by the jaws of a lathe there is shown a flattening device 1 for flat surface of an object fixed by the jaws of a lathe.
  • This device comprises a support 2 provided with means 3 for mechanically holding the two ends of an abrasive strip 4.
  • planar support plane situated at the rear of the abrasive belt in contact with the said strip, so that the back of the abrasive belt bears on the said plane 5 of support plane which plane 5 d support is solidarity means to hold the band and all is mounted swivel and flexible.
  • abrasive belt rests on the entire support plane and the ends of this abrasive belt extend rearwardly.
  • the abrasive belt To polish a flat surface, the abrasive belt must be flat. For this purpose, its rear face is supported on a plane supporting plane 5 which is mounted flexible and orientable that is to say that it can move slightly and back. It is the plane of the piece to be polished which must be considered as the reference surface.
  • the abrasive belt should orient at the beginning of the polishing with respect to the surface to be polished which has asperities. During polishing, the asperities will disappear and the support plane will resume its neutral position.
  • the band is slightly stretched to apply on the support plane 5
  • the support plane 5 is therefore, for example, mounted via resilient means 6 such as springs on a table. In this case there are four springs.
  • plan 5 support plane is secured to the fastening means 3 of the band and it is all that is orientable and flexible.
  • the device then comprises a mast 7 for fixing it to a lathe, this mast carries a table 8 on which is mounted resiliently the support 2 with its supporting plane 5 for the abrasive belt and the means 3 for fixing and possibly tensioning the band.
  • the table 8 is connected to the support 2 by special screws 11 called calibrated retaining screws mounted through bores made in the table, these screws serving as guides and fixing for springs mounted between the table and the support.
  • the figure 3 shows the retaining screws and the elastic means 6 which allow the support 2 and therefore the support plane 5 to move relative to the table 8. As will be understood, this is not the position of the support plane 5 which dictates sanding work as will a machining tool.
  • the means 3 for locking the band comprises at least one eccentric 30 acting directly on the abrasive belt or on a pad coming to rest on the band which itself bears on a sole.
  • the eccentric is integral with a maneuvering axis which carries a knurled knob.
  • a knurled knob for its operation.
  • This axis is guided in rotation on the support and on this axis is immobilized in rotation two eccentric rings which will come, during the rotation of the axis apply the abrasive belt on a suitable surface such a pavement.
  • eccentric ring By eccentric ring will be understood a ring whose axis is off-center or a ring whose peripheral surface is dictated by a radius of variable length depending on the angular rotation of the axis.
  • the mast is fixed on a tower carriage and the device is brought to contact the abrasive belt with the surface, the movement is continued to apply the band but this movement must leave movement to the support plane.
  • the support plane 5 for the back of the abrasive belt is disposed in front of the support 2 so that the support 2 does not interfere because it is placed behind the abrasive belt.

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

Abstract

Dispositif de toilage pour surface plane comprenant un support (2) pourvu de moyens (3) pour tenir mécaniquement les deux extrémités d'une bande abrasive (4) ce dispositif étant caractérisé en ce qu'il comprend un appui plan (5) située l'arrière de la bande abrasive (4) au contact de celle ci lequel appui plan (5) est monté orientable et souple.Apparatus for flat surface covering comprising a support (2) provided with means (3) for mechanically holding the two ends of an abrasive belt (4), this device being characterized in that it comprises a flat support (5) located rear of the abrasive belt (4) in contact with that which plane support (5) is mounted swivel and flexible.

Description

L'invention se rapporte à un dispositif de toilage pour un tour d'usinage conventionnel ou numérique.The invention relates to a machine for a conventional or digital machining lathe.

Pour retirer l'oxydation d'une pièce en acier ou pour finir une pièce tournée, il est connu d'utiliser une bande de papier abrasif que l'on met en contact avec la pièce. En fonction de la finesse de l'abrasif, on peut polir des axes ou autres pièces tournées et ainsi réduire la rugosité.To remove the oxidation of a steel part or to finish a turned part, it is known to use a strip of abrasive paper that is brought into contact with the part. Depending on the fineness of the abrasive, we can polish axes or other turned parts and thus reduce the roughness.

La pièce peut être en métal, bois, plastique, composite etc...The piece can be metal, wood, plastic, composite etc ...

La toile est tenue par les mains de l'opérateur et ce dernier applique la bande sur la pièce qui tourne avec une force qu'il ne contrôle pas.The canvas is held by the hands of the operator and the latter applies the tape on the part that rotates with a force it does not control.

On se rend compte rapidement que cette opération est très dangereuse car les doigts de la main sont très proches des mors du tour qui tournent a plusieurs centaines de tours minutes. Un faux mouvement et les doigts de la main ou la manche de la veste peuvent être happés ce qui a de graves conséquences. Ce peut être un gommage dans la toile qui entrainerait les mains vers la pièce en s'enroulant sur la dite pièce.One quickly realizes that this operation is very dangerous because the fingers of the hand are very close to the jaws of the turn which turn to several hundreds of revolutions minutes. A false movement and the fingers of the hand or the sleeve of the jacket can be snagged which has serious consequences. It can be a scrub in the canvas that would lead the hands to the room by winding on the room.

Pour éviter cet accident, il est connu un outil FR 2 966 071 comprenant un support pourvu de moyens pour tenir mécaniquement les deux extrémités d'une bande de toile abrasive venant en appui exclusivement sur deux surfaces d'appui linéaires écartées l'une de l'autre.To avoid this accident, it is known a tool FR 2 966 071 comprising a support provided with means for mechanically holding the two ends of an abrasive cloth web bearing exclusively on two linear bearing surfaces spaced apart from each other.

Lors de la mise en place de la toile abrasive, celle-ci n'est pas nécessairement tendue entre les deux surfaces d'appui afin que dès qu'elle entre en contact avec la pièce à usiner, cette bande forme un Vé, le creux du Vé enveloppant partiellement la pièce à polir.When placing the abrasive cloth, it is not necessarily stretched between the two bearing surfaces so that as soon as it comes into contact with the workpiece, this band forms a V e, the hollow the VE partially enveloping the workpiece.

Ce support se présente donc comme un bloc en aluminium dont une face dite frontale est formée de deux surfaces sécantes disposés en V, la bande vient prendre appui sur les deux bords libres du vé et se tend lorsqu'on met en contact la bande avec la pièce. Cette tension augmente si on continue de se rapprocher de la pièce. La bande ne vient jamais en contact avec la face frontale du support ailleurs qu'au niveau des deux bords libres. Le support est fixé sur le tour via un mât et un chariot qui permet d'approcher le dispositif de la pièce à polir.This support is therefore like an aluminum block, a so-called front face is formed of two secant surfaces arranged in V, the strip bears on the two free edges of the vee and is stretched when the strip is brought into contact with the room. This tension increases if you keep getting closer to the room. The strip never comes into contact with the front face of the support other than at the two free edges. The support is fixed on the lathe via a mast and a carriage which allows to approach the device of the piece to be polished.

Cet outil est fait pour travailler des pièces cylindriques de révolution ou des pièces coniques.This tool is made to work cylindrical parts of revolution or conical parts.

Pour traiter une face plane, l'outil ne convient pas. On utilise alors la méthode manuelle qui consiste à se munir d'une cale de ponçage sur laquelle on place la bande d'abrasif que l'on tient à la main et on vient appliquer la cale sur la surface à traiter. Cette solution est encore plus dangereuse que celle où l'opérateur tient la bande entre ses deux mainsTo treat a flat face, the tool is not suitable. We then use the manual method which is to provide a sanding wedge on which we place the abrasive tape that is held by hand and just apply the wedge on the surface to be treated. This solution is even more dangerous than the one where the operator holds the tape in his hands

Le risque est l'accident.The risk is the accident.

On connait US 2 258 733 un système de ponçage de carrosserie courbes automobile ou la bande qui est une bandesans fin est souple pour prendre une forme courbe lors du ponçage. Ce dispositif n'est pas approprié pour poncer des surfaces planes car le montage de la bande abrasive est fait pour s'adapter à la forme courbe de la carrosserie.We know US 2,258,733 a curved automobile body sanding system or the tape that is a fine tapesans is flexible to take a curved shape when sanding. This device is not suitable for sanding flat surfaces because the mounting of the abrasive belt is made to adapt to the curved shape of the bodywork.

On connait DE-A- 3037201 un système de ponçages à bande sans fin où le système de mise en tension de la bande est une pièce plate montée sur ressort qui s'appuie sur la face interne de la bande. Il s'agit d'un tendeur.We know DE-A-3037201 an endless belt sanding system in which the web tensioning system is a spring-loaded flat part which rests on the inner face of the web. It is a tensioner.

L'invention se propose d'apporter une solution au risque d'accident.The invention proposes to provide a solution to the risk of accident.

A cet effet, l'invention a pour objet, un dispositif de toilage pour agir sur une surface plane comprenant un support pourvu de moyens pour tenir mécaniquement les deux extrémités d'une bande abrasive ce dispositif étant caractérisé en ce qu'il comprend un appui plan située à l'arrière de la bande abrasive au contact avec celle-ci lequel appui plan est solidaire des moyens pour tenir la bande et l'ensemble est monté orientable et souple.For this purpose, the subject of the invention is a device for shaping to act on a flat surface comprising a support provided with means for holding mechanically the two ends of an abrasive belt this device being characterized in that it comprises a flat support located at the rear of the abrasive belt in contact therewith which flat support is secured to the means for holding the strip and the set is mounted swiveling and flexible.

L'invention sera bien comprise à l'aide de la description ci après faite à titre d'exemple non limitatif en regard du dessin qui représente :

  • FIG 1 une vue en perspective d'un dispositif selon l'invention sans la bande abrasive,
  • FIG 2 : Une vue de l'arrière du dispositif de la figure 1
  • FIG 3 : une coupe selon AA de la figure 2
  • FIG 4 une vue de dessus d'un dispositif selon l'invention
  • FIG 5 : une coupe selon BB de la figure 4.
The invention will be better understood from the following description given by way of non-limiting example with reference to the drawing which represents:
  • FIG 1 a perspective view of a device according to the invention without the abrasive belt,
  • FIG 2 : A view from the back of the device of the figure 1
  • FIG 3 : a cut according to AA of the figure 2
  • FIG 4 a top view of a device according to the invention
  • FIG 5 : a section according to BB of the figure 4 .

En se reportant au dessin, on voit un dispositif 1 de toilage pour surface plane d'un objet fixé par les mâchoires d'un tour.Referring to the drawing, there is shown a flattening device 1 for flat surface of an object fixed by the jaws of a lathe.

Ce dispositif comprend un support 2 pourvu de moyens 3 pour tenir mécaniquement les deux extrémités d'une bande 4 abrasive.This device comprises a support 2 provided with means 3 for mechanically holding the two ends of an abrasive strip 4.

En outre, il comprend un plan appui 5 plan située l'arrière de la bande abrasive au contact de la dite bande, en sorte que le dos de la bande abrasive s'appuie sur le dit plan 5 d'appui plan lequel plan 5 d'appui est solidaire des moyens pour tenir la bande et l'ensemble est monté orientable et souple.In addition, it comprises a planar support plane situated at the rear of the abrasive belt in contact with the said strip, so that the back of the abrasive belt bears on the said plane 5 of support plane which plane 5 d support is solidarity means to hold the band and all is mounted swivel and flexible.

Par orientable et souple on comprendra un léger jeu autour d'un axe orthogonal au plan d'appui. Pour la souplesse on utilisera des ressorts.By orientable and flexible we will understand a slight game around an axis orthogonal to the support plane. For flexibility we will use springs.

Egalement il comprend, éventuellement, un moyen pour exercer une tension sur la bande abrasive pour bien l'appliquer sur le plan d'appui 5. On remarquera que la bande abrasive s'appuie sur la totalité du plan 5 d'appui et que les extrémités de cette bande abrasive s'étendent vers l'arrière.Also it includes, possibly, a means for exerting a tension on the abrasive belt to apply it on the support plane 5. It will be noted that the abrasive belt rests on the entire support plane and the ends of this abrasive belt extend rearwardly.

Pour polir une surface plane, il faut que la bande abrasive soit plane. Pour cela sa face arrière est en appui sur un plan 5 d'appui plan lequel est monté souple et orientable c'est-à-dire qu'il peut s'orienter légèrement et reculer. C'est le plan de la pièce à polir qui doit être considéré comme la surface de référence. La bande abrasive doit s'orienter au début du polissage par rapport à la surface à polir qui présente des aspérités. Lors du polissage, les aspérités vont disparaitre et le plan d'appui va reprendre sa position neutre.To polish a flat surface, the abrasive belt must be flat. For this purpose, its rear face is supported on a plane supporting plane 5 which is mounted flexible and orientable that is to say that it can move slightly and back. It is the plane of the piece to be polished which must be considered as the reference surface. The abrasive belt should orient at the beginning of the polishing with respect to the surface to be polished which has asperities. During polishing, the asperities will disappear and the support plane will resume its neutral position.

La bande est légèrement tendue pour s'appliquer sur le plan 5 d'appuiThe band is slightly stretched to apply on the support plane 5

Pour tenir compte des imperfections de surface et guidage, le plan 5 d'appui est donc, par exemple, monté via des moyens 6 élastiques tels des ressorts sur une table. Dans le cas présent il y a quatre ressorts.To account for surface and guide imperfections, the support plane 5 is therefore, for example, mounted via resilient means 6 such as springs on a table. In this case there are four springs.

Le plan d'appui 5 plan est solidaire des moyens de fixation 3 de la bande et c'est tout cet ensemble qui est orientable et souple.The plan 5 support plane is secured to the fastening means 3 of the band and it is all that is orientable and flexible.

Le dispositif comprend alors un mât 7 pour sa fixation sur un tour, ce mât porte une table 8 sur laquelle est montée élastiquement le support 2 avec son plan 5 d'appui pour la bande abrasive et les moyens 3 de fixation et éventuellement de tension de la bande.The device then comprises a mast 7 for fixing it to a lathe, this mast carries a table 8 on which is mounted resiliently the support 2 with its supporting plane 5 for the abrasive belt and the means 3 for fixing and possibly tensioning the band.

La table 8 est reliée au support 2 par des vis 11 spéciales dites vis de retenues calibrées montées aux travers d'alésages réalisés dans la table, ces vis servant de guides et de fixation pour des ressorts montés entre la table et le support.The table 8 is connected to the support 2 by special screws 11 called calibrated retaining screws mounted through bores made in the table, these screws serving as guides and fixing for springs mounted between the table and the support.

La figure 3 montre les vis de retenues et les moyens élastique 6 qui permettent au support 2 et donc au plan d'appui 5 de bouger par rapport à la table 8. Comme on le comprendra, ce n'est pas la position du plan d'appui 5 qui dicte le travail de ponçage comme le ferai un outil d'usinage.The figure 3 shows the retaining screws and the elastic means 6 which allow the support 2 and therefore the support plane 5 to move relative to the table 8. As will be understood, this is not the position of the support plane 5 which dictates sanding work as will a machining tool.

Lorsque l'on applique le papier abrasif sur la pièce à polir, la force exercée ne doit pas écraser totalement les ressorts 6.When applying the abrasive paper to the workpiece, the force exerted must not completely crush the springs 6.

Le moyen 3 de verrouillage de la bande comprend au moins un excentrique 30 agissant directement sur la bande abrasive ou sur un patin venant s'appuyer sur la bande qui elle-même est en appui sur une semelle.The means 3 for locking the band comprises at least one eccentric 30 acting directly on the abrasive belt or on a pad coming to rest on the band which itself bears on a sole.

L'excentrique est solidaire d'un axe de manoeuvre qui porte un bouton moleté.The eccentric is integral with a maneuvering axis which carries a knurled knob.

Plus précisément, sur un axe est monté un bouton moleté pour sa manoeuvre. Cet axe est guidé en rotation sur le support et sur cet axe est immobilisé en rotation deux bagues excentriques qui vont venir, lors de la rotation de l'axe appliquer la bande abrasive sur une surface appropriée tel un pavé.More precisely, on an axis is mounted a knurled knob for its operation. This axis is guided in rotation on the support and on this axis is immobilized in rotation two eccentric rings which will come, during the rotation of the axis apply the abrasive belt on a suitable surface such a pavement.

Par bague excentrique on comprendra une bague dont l'axe est décentré ou une bague dont la surface périphérique est dictée par un rayon de longueur variable en fonction de la rotation angulaire de l'axe.By eccentric ring will be understood a ring whose axis is off-center or a ring whose peripheral surface is dictated by a radius of variable length depending on the angular rotation of the axis.

Lorsque la bande est montée, elle forme un U. On voit à la figure 3 une bande 4 qui est quasiment montée mais qui n'est pas encore verrouillée et n'est pas en appui sur le plan d'appui 5. La bande abrasive est calée latéralement au niveau du passage entre le plan d'appui 5 et les moyens de fixation 3 portées par le support2.When the tape is mounted, it forms a U. We see at the figure 3 a band 4 which is almost mounted but which is not yet locked and is not supported on the support plane 5. The abrasive belt is wedged laterally at the passage between the support plane 5 and the means fixing 3 carried by the support2.

Le mât est fixé sur un chariot du tour et on approche le dispositif pour mettre en contact la bande abrasive avec la surface, on poursuit le mouvement pour appliquer la bande mais ce mouvement doit laisser du mouvement au plan d'appui. On notera que le plan d'appui 5 pour l'arrière de la bande abrasive est disposé en avant du support 2 en sorte que le support 2 ne gène pas car il est placé derrière la bande abrasive.The mast is fixed on a tower carriage and the device is brought to contact the abrasive belt with the surface, the movement is continued to apply the band but this movement must leave movement to the support plane. Note that the support plane 5 for the back of the abrasive belt is disposed in front of the support 2 so that the support 2 does not interfere because it is placed behind the abrasive belt.

Claims (6)

Dispositif de toilage pour surface plane comprenant un support (2) pourvu de moyens (3) pour tenir mécaniquement les deux extrémités d'une bande (4) abrasive ce dispositif étant caractérisé en ce qu'il comprend un plan appui (5) plan situé à l'arrière de la bande abrasive au contact de celle-ci en sorte que le dos de la bande abrasive s'appuie sur le dit plan (5) d'appui plan, lequel plan appui est solidaire des moyens pour tenir la bande, cet ensemble étant monté orientable et souple.Device for flat surface forming comprising a support (2) provided with means (3) for mechanically holding the two ends of an abrasive strip (4), this device being characterized in that it comprises a support plane (5) lying flat at the rear of the abrasive belt in contact with the latter so that the back of the abrasive belt is supported on said plane support plane (5), which support plane is integral with the means for holding the strip, this assembly being mounted orientable and flexible. Dispositif de toilage selon la revendication 1 caractérisé en ce que le plan (5) d'appui est monté sur des moyens (6) élastique tels des ressorts.Device for abrasive belt according to claim 1 characterized in that the plane (5) support is mounted on means (6) such elastic springs. Dispositif de toilage selon la revendication 1 ou 2 caractérisé en ce qu'il comprend un mât (7) pour sa fixation sur un tour, ce mât (7) porte une table (8) sur laquelle est montée élastique le support (2) avec son plan (5) d'appui plan pour la bande abrasive.Weaving device according to claim 1 or 2, characterized in that it comprises a mast (7) for fixing it on a lathe, this mast (7) carries a table (8) on which is mounted elastically the support (2) with its plane support plane (5) for the abrasive belt. Dispositif de toilage selon la revendication 3 caractérisé en ce que la table (8) est reliée au support par des vis (11) spéciales dites vis de retenues calibrées montée au travers d'alésages réalisés dans la table, ces vis servant de guides et de fixation pour des ressorts montés entre la table et le support.Weaving device according to claim 3 characterized in that the table (8) is connected to the support by special screws (11) called calibrated retaining screws mounted through bores made in the table, these screws serving as guides and fixing for springs mounted between the table and the support. Dispositif de toilage selon la revendication 1 caractérisé en ce que le moyen de verrouillage de la bande comprend au moins un excentrique (30).Weaving device according to claim 1 characterized in that the locking means of the strip comprises at least one eccentric (30). Dispositif de toilage selon la revendication 5 caractérisé en ce que le moyen de verrouillage comprend deux bagues excentriques immobilisée en rotation sur un axe qui guidé en rotation est pourvu d'un boulon moleté, chacune des bagues excentriques venant appliquer la bande sur un pavé fixe.Clothing device according to claim 5 characterized in that the locking means comprises two eccentric rings immobilized in rotation on a shaft which is guided in rotation is provided with a bolt knurled, each of the eccentric rings coming to apply the band on a fixed block.
EP15185066.6A 2014-09-15 2015-09-14 Belt grinding device for a planar surface of a workpiece mounted on a lathe Withdrawn EP2995420A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1458623A FR3025736B1 (en) 2014-09-15 2014-09-15 TOOLING DEVICE FOR FLAT FACE OF A PIECE MOUNTED ON A TOWER

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EP2995420A1 true EP2995420A1 (en) 2016-03-16

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EP15185066.6A Withdrawn EP2995420A1 (en) 2014-09-15 2015-09-14 Belt grinding device for a planar surface of a workpiece mounted on a lathe

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FR (1) FR3025736B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235446A (en) * 1939-07-10 1941-03-18 Milton H Birger Surfacing means
US2258733A (en) 1940-08-30 1941-10-14 Gen Motors Corp Sanding machine
DE3037201A1 (en) 1980-10-02 1982-04-22 Siegfried 5000 Köln Erdmann Wall and ceiling surface grinding device - has wheeled abrasive head controlled via pivoted handle
FR2966071A1 (en) 2010-10-18 2012-04-20 Christophe Gourgues Belt grinding device for use on lathe, has locking stones placed at ends of mat and head, where locking stones eccentrically clamp abrasive cloth to lock abrasive cloth in throttling system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235446A (en) * 1939-07-10 1941-03-18 Milton H Birger Surfacing means
US2258733A (en) 1940-08-30 1941-10-14 Gen Motors Corp Sanding machine
DE3037201A1 (en) 1980-10-02 1982-04-22 Siegfried 5000 Köln Erdmann Wall and ceiling surface grinding device - has wheeled abrasive head controlled via pivoted handle
FR2966071A1 (en) 2010-10-18 2012-04-20 Christophe Gourgues Belt grinding device for use on lathe, has locking stones placed at ends of mat and head, where locking stones eccentrically clamp abrasive cloth to lock abrasive cloth in throttling system

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FR3025736A1 (en) 2016-03-18
FR3025736B1 (en) 2017-04-14

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