FR2539068A3 - Method for manufacturing a rotating tool having flexible peripheral elements and tool obtained according to this method - Google Patents

Method for manufacturing a rotating tool having flexible peripheral elements and tool obtained according to this method Download PDF

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Publication number
FR2539068A3
FR2539068A3 FR8300414A FR8300414A FR2539068A3 FR 2539068 A3 FR2539068 A3 FR 2539068A3 FR 8300414 A FR8300414 A FR 8300414A FR 8300414 A FR8300414 A FR 8300414A FR 2539068 A3 FR2539068 A3 FR 2539068A3
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France
Prior art keywords
elements
tool
disc
parts
manufacturing
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Granted
Application number
FR8300414A
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French (fr)
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FR2539068B3 (en
Inventor
Claude Pelissier
Jack Gaillard
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CIFAP SA
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CIFAP SA
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Filing date
Publication date
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Priority to FR8300414A priority Critical patent/FR2539068A3/en
Publication of FR2539068A3 publication Critical patent/FR2539068A3/en
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Publication of FR2539068B3 publication Critical patent/FR2539068B3/fr
Granted legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/08Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising annular or circular sheets packed side by side

Abstract

Method for manufacturing a rotating tool comprising at least one disc comprising a peripheral zone formed by a plurality of flexible and narrow elements, cut out from a product in sheet or strip form. It is characterised in that, instead of being adjacent to a single strip, the elements 4 are distributed in a plurality of parts 9 which are independent from one another and each comprise at least one of the said elements 4. Application to the tooling industry and in particular to sanding and smoothing (satin-finishing).

Description

L'invention se rapporte à un procédé de fabrication d'un outil rotatif comprenant au moins un disque constitué, d'une part, d'une zone périphérique formée d'une pluralité d'éléments étroits et souples qui ont été découpés dans un produit en feuille ou en bande et qui sont disposés sensiblement dans des positions radiales à un axe de rotation autour duquel ils sont répartis de manière relativement uniforme et, d'autre part, d'une zone centrale présentant un orifice axial par lequel le disque est enfilé sur un mandrin qui assure de manière connue son centrage et son entrainement en rotation. The invention relates to a method of manufacturing a rotary tool comprising at least one disc consisting, on the one hand, of a peripheral zone formed by a plurality of narrow and flexible elements which have been cut from a product. in sheet or strip form and which are arranged substantially in positions radial to an axis of rotation around which they are distributed in a relatively uniform manner and, on the other hand, a central zone having an axial orifice through which the disc is threaded on a mandrel which ensures in known manner its centering and its rotational drive.

Elle se rapporte également à l'outil obtenu selon ce procédé. It also relates to the tool obtained according to this process.

Elle trouve plus particulièrement mais non exclusivement application dans les travaux dits d'essuyage, de lustrage, de polissage, de ponçage ou de satinage de pièces lorsque les dites pièces qui nécessitent ces travaux ont des profils très complexes auxquels les éléments souples de ces outils peuvent ai sèment s'adapter. It is more particularly but not exclusively applicable in so-called wiping, buffing, polishing, sanding or satin-finishing work when said pieces which require this work have very complex profiles to which the flexible elements of these tools can have adapted.

Pour la réalisation de tels outils est déjà connu (FR-A-2.494.616) un procédé selon lequel on prend tout d'abord une feuille rectangulaire du produit choisi en fonction du travail à réaliser, telle par exemple une feuille de toile émérisée, dans le cas du polissage. Dans cette feuille, et ce, de chaque côté d'une bande médiane qui demeure quant à elle intacte, on pratique ensuite des découpes parallèles entre elles mais perpendiculaires à l'axe longitudinal de la bande médiane précitée, lesquelles découpes scindent alors en éléments séparés sauf à l'une de leurs extrémités les dits côtés de la feuille qui sont ensuite rabattus l'un sur l'autre par pliage de la bande médiane, après insertion d'un renfort. For the production of such tools is already known (FR-A-2,494,616) a method according to which a rectangular sheet of the product chosen is first of all chosen according to the work to be carried out, such as for example a sheet of emery cloth, in the case of polishing. In this sheet, and this, on each side of a median strip which remains intact, we then make cuts parallel to each other but perpendicular to the longitudinal axis of the aforementioned median strip, which cuts then split into separate elements except at one of their ends, the said sides of the sheet which are then folded over one another by folding the central strip, after insertion of a reinforcement.

L'ensemble est alors roulé de manière que les deux extrémités de la bande médiane puissent être assemblées entre elles pour former une bague délimitant l'orifice axial par lequel l'ensemble sera centré et entraîné en rotation par un mandrin. The assembly is then rolled so that the two ends of the central strip can be assembled together to form a ring defining the axial orifice through which the assembly will be centered and driven in rotation by a mandrel.

Ce n'est qu'après réalisation de cette bague que les éléments souples attenant à l'un de ces bords peuvent enfin que ce soit alors immédiatement ou plus tard, ne serait-ce que par la force centrifuge engendrée par la rotation du mandrin, être rabattus vers l'extérieur jusqu'à se situer dans un plan radial à 1'axe du mandrin. It is only after this ring has been made that the flexible elements adjoining one of these edges can finally be either immediately or later, if only by the centrifugal force generated by the rotation of the mandrel, be folded outwards until it lies in a plane radial to the axis of the mandrel.

Si, comme indiqué plus haut5 ces outils ont leurs éléments souples qui s'adaptent aisément aux profils les plus complexes des pièces à travailler, par contre, ils s'avèrent de réalisation très difficile et donc pratiquement impossible à mécaniser et d'un prix de revient assez élevé. If, as indicated above5 these tools have their flexible elements which adapt easily to the most complex profiles of the workpieces, on the other hand, they prove to be very difficult to produce and therefore practically impossible to mechanize and at a cost of comes back quite high.

Un résultat que l'invention vise à obtenir est un outil du type en tête de la présente description dont le procédé de fabrication est extrêmement simple et dont, de ce fait, le prix de revient est avantageux. One result which the invention aims to obtain is a tool of the type at the head of this description, the manufacturing process of which is extremely simple and of which, therefore, the cost price is advantageous.

A cet effet, elle a pour objet un procédé, du type cité plus haut, notamment caractérisé en ce que, au lieu d'être attenant à une même bande, les éléments sont répartis en plusieurs parties indépendantes les unes des autres et comprenant chacune au moins un des dits éléments. To this end, it relates to a process, of the type mentioned above, in particular characterized in that, instead of being attached to the same strip, the elements are distributed in several parts independent of each other and each comprising at minus one of the said elements.

Elle a également pour objet l'outil ainsi obtenu. It also relates to the tool thus obtained.

Elle sera bien comprise à l'aide de- la description ci-après faite, à titre d'exemple non limitatif, en regard du dessin ci-annexé, qui représente schématiquement
- figure 1 : l'outil vu de face,
- figure 2 : une coupe selon II-II de la figure 1,
- figure 3 : en vue de face, une variante de réalisation de l'outil,
- figure 4 : une coupe selon IV-IV de la figure 3,
- figure 5 : en vue de face, une autre variante de réalisation de outil,
- figure 6 : une coupe selon VI-VI de la figure 5.
It will be clearly understood with the aid of the description given below, by way of nonlimiting example, with reference to the attached drawing, which schematically represents
- Figure 1: the tool seen from the front,
FIG. 2: a section along II-II of FIG. 1,
- Figure 3: in front view, an alternative embodiment of the tool,
FIG. 4: a section on IV-IV of FIG. 3,
- Figure 5: in front view, another alternative embodiment of the tool,
- Figure 6: a section along VI-VI of Figure 5.

En se reportant au dessin, on voit que l'outil rotatif comprend au moins un disque 1, 2 et/ou 3 dont la zone périphérique qui en constitue la partie essentielle est formée d'une pluralité d'éléments 4, 5 et/ou 6, étroits et souples, qui ont été découpés dans un produit en feuille ou en bande. Referring to the drawing, it can be seen that the rotary tool comprises at least one disk 1, 2 and / or 3 of which the peripheral zone which constitutes its essential part is formed by a plurality of elements 4, 5 and / or 6, narrow and flexible, which have been cut from a sheet or strip product.

Ces éléments 4, 5 et/ou 6 étroits sont en outre disposés sensiblement dans des positions radiales à un axe 7 autour duquel axe 7, les dits éléments sont répartis de manière relativement uniforme.  These narrow elements 4, 5 and / or 6 are also arranged substantially in radial positions with an axis 7 around which axis 7, the said elements are distributed relatively uniformly.

Dans sa zone centrale, cet outil présente un orifice axial 8 par lequel il est enfilé sur un mandrin (non représenté) qui assurera de manière connue son centrage et son entrainement en rotation autour de l'axe 7. In its central zone, this tool has an axial orifice 8 through which it is threaded onto a mandrel (not shown) which will ensure, in known manner, its centering and its drive in rotation about the axis 7.

Selon une caractéristique essentielle du procédé de l'invention, au lieu d'être attenant à une même bande, les éléments 4, 5 et/ou 6 sont répartis en plusieurs parties 9, 10 et/ou 11 indépendantes les unes des autres et comprenant chacune au moins un des dits éléments 4, 5 et/ou 6. According to an essential characteristic of the process of the invention, instead of being attached to the same strip, the elements 4, 5 and / or 6 are distributed in several parts 9, 10 and / or 11 independent of each other and comprising each at least one of said elements 4, 5 and / or 6.

Dans le cas où avantageusement ces parties 9, 10 et/ou 11 présentent plusieurs éléments, ceux-ci seront obtenus en divisant, au moins localement, la dite partie au moyen de lignes 12, 13, 14 formant des découpes de préférence partielles. In the case where advantageously these parts 9, 10 and / or 11 have several elements, these will be obtained by dividing, at least locally, said part by means of lines 12, 13, 14 forming preferably partial cutouts.

Ces parties 9, 10 et/ou 11 consisteront alors en des secteurs angulaires 11 formés d'éléments 6 cpnvergent vers le centre ou en des tronçons 9, 10 de rubans formés d'éléments parallèles 4, 5, par exemple au nombre de trois. These parts 9, 10 and / or 11 will then consist of angular sectors 11 formed of elements 6 converging towards the center or of sections 9, 10 of ribbons formed of parallel elements 4, 5, for example three in number.

Ces tronçons 9, 10 pourront alors avoir une longueur Lg
ou L10 correspondant sensiblement au diamètre ou au rayon du disque à obtenir.
These sections 9, 10 can then have a length Lg
or L10 corresponding substantially to the diameter or radius of the disc to be obtained.

Selon une autre earactéri-stique du procédé de l'invention, on forme le disque d'au moins une couche dans laquelle les parties 9, 10 et/ou 11 sont réparties angulairement de manière uniforme, tout autour de l'axe 7 précité, lequel passe par le centre du disque. According to another earactéri-stique of the process of the invention, the disc is formed from at least one layer in which the parts 9, 10 and / or 11 are distributed angularly in a uniform manner, all around the axis 7 above, which goes through the center of the disc.

Dans le cas où l'outil comprend plusieurs couches de produit, celles-ci pourront être déphasées et, au moins dans le cas où le produit qui les constitue aura des faces différentes, ces faces pourront toutes être tournées du même coté ou réparties entre les deux catés.  In the case where the tool comprises several layers of product, these may be out of phase and, at least in the case where the product which constitutes them will have different faces, these faces may all be turned on the same side or distributed between the two cats.

Selon une autre caractéristique du procédé de l'invention, dans la zone centrale du disque, on assemble entre elles toutes les parties constituant un même disque. According to another characteristic of the process of the invention, in the central zone of the disc, all the parts constituting the same disc are assembled together.

Pour cet assemblage, les parties peuvent être maintenues les unes sur les autres par tout moyen connu et par exemple soit par collage, agrafage ou rivetage, que cela se fasse directement ou entre deux flasques 15, 16, soit par sertissage des collerettes 17, 18 d'un moyeu 19.  For this assembly, the parts can be held one on the other by any known means and for example either by gluing, stapling or riveting, whether this is done directly or between two flanges 15, 16, or by crimping the flanges 17, 18 a hub 19.

C'est de préférence après cet assemblage qu'on centre1 l'ensemble obtenu est percé de l'orifice 8 de centrage et d'entrainement en rotation par le mandrin précité. It is preferably after this assembly that centre1 the assembly obtained is pierced with the orifice 8 for centering and driving in rotation by the aforementioned mandrel.

Ce mandrin peut évidemment porter un ou plusieurs disques et, dans le cas où il en porte plusieurs, les disques peuvent être espacés ou appuyés les uns sur les autres selon la densité souhaitée pour l'outil en fonction du travail à réaliser. This mandrel can obviously carry one or more discs and, in the case where it carries several, the discs can be spaced or supported on each other according to the density desired for the tool according to the work to be performed.

Afin de parfaire la forme circulaire du disque, le procédé pourra comprendre une phase de découpage périphérique. In order to perfect the circular shape of the disc, the method may include a peripheral cutting phase.

Par sa simplicité, le procédé de fabrication qui vient d'être décrit s'avère facilement mécanisable et conduit à un outil de prix de revient avantageux.  By its simplicity, the manufacturing process which has just been described proves to be easily mechanizable and leads to an advantageous cost price tool.

Claims (6)

REVENDICATIONS 1. Procédé de fabrication d'un outil comprenant au moins un disque (1, 2, 3) constitué, d'une part, d'une zone périphérique formée d'une pluralité d'éléments (4, 5, 6) étroits et souples, qui ont été découpés dans an produit en feuille et qui sont disposés sensiblement dans les positions radiales à un axe central (7) de rotation autour duquel ils sont répartis de manière relativement uniforme et, d'autre part, d'une zone centrale perçée d'un orifice (8) par lequel le disque pourra être enfilé sur un mandrin qui assurera son centrage et son entraSnement en rotation, ce procédé étant 1. Method for manufacturing a tool comprising at least one disc (1, 2, 3) consisting, on the one hand, of a peripheral zone formed by a plurality of narrow elements (4, 5, 6) and flexible, which have been cut from a sheet product and which are arranged substantially in the radial positions to a central axis (7) of rotation around which they are distributed relatively uniformly and, on the other hand, to a central area pierced with an orifice (8) through which the disc can be threaded on a mandrel which will ensure its centering and its rotational drive, this process being CARACTERISE en ce que, au lieu d'être attenant à une même bande, les éléments (4, 5, 6) sont répartis en plusieurs parties (9, 10 ou il) indépendantes les unes des autres et comprenant chacune au moins un des dits éléments (4, 5, 6).CHARACTERIZED in that, instead of being attached to the same strip, the elements (4, 5, 6) are distributed in several parts (9, 10 or it) independent of each other and each comprising at least one of the said elements (4, 5, 6). 2. Procédé selon la revendication 1 caractérisé en ce qu'on forme le disque d'au moins une couche dans laquelle on répartit angulairement les parties (9, 10 ou 11) de manière uniforme tout autour de l'axe (7), 2. Method according to claim 1 characterized in that the disc forms at least one layer in which the parts (9, 10 or 11) are angularly distributed uniformly all around the axis (7), 3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, dans la zone centrale du disque, on assemble entre elles toutes les parties (9, 10 ou 11) constituant un même disque. 3. Method according to claim 1 or 2, characterized in that, in the central zone of the disc, all the parts (9, 10 or 11) constituting the same disc are assembled together. 4. Outil caractérisé en ce qu'il est obtenu à l'aide du procédé selon l'une quelconque des revendications 1 à 3.  4. Tool characterized in that it is obtained using the method according to any one of claims 1 to 3. 5. Outil selon la revendication 4 caractérisé en ce que les parties consistent en des secteurs angulaires~tll) formés d'éléments (6) convergent vers le centre. 5. Tool according to claim 4 characterized in that the parts consist of angular sectors ~ tll) formed of elements (6) converge towards the center. 6. Outil selon la revendication 4 caractérisé en ce que les parties (9, 10) consistent en des tronçons (9, 10) de rubans formés d'éléments parallèles.  6. Tool according to claim 4 characterized in that the parts (9, 10) consist of sections (9, 10) of ribbons formed of parallel elements.
FR8300414A 1983-01-07 1983-01-07 Method for manufacturing a rotating tool having flexible peripheral elements and tool obtained according to this method Granted FR2539068A3 (en)

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FR8300414A FR2539068A3 (en) 1983-01-07 1983-01-07 Method for manufacturing a rotating tool having flexible peripheral elements and tool obtained according to this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8300414A FR2539068A3 (en) 1983-01-07 1983-01-07 Method for manufacturing a rotating tool having flexible peripheral elements and tool obtained according to this method

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FR2539068A3 true FR2539068A3 (en) 1984-07-13
FR2539068B3 FR2539068B3 (en) 1984-12-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558711A1 (en) * 1991-08-26 1993-09-08 Dynabrade, Inc. Flexible sanding/deburring head
US5405286A (en) * 1992-08-21 1995-04-11 Dynabrade, Inc. Flexible sanding/deburring head
EP0925153A1 (en) * 1995-08-08 1999-06-30 Sungold Abrasives USA, Inc. Flexible contour sanding disc

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2024691A (en) * 1934-07-13 1935-12-17 Kent Robert Thurston Buffing wheel and method of making the same
DE8224843U1 (en) * 1982-09-03 1982-12-02 Kemper-Kontakt Gert Kemper GmbH & Co KG, 5600 Wuppertal FLAT GRINDING WHEEL

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2024691A (en) * 1934-07-13 1935-12-17 Kent Robert Thurston Buffing wheel and method of making the same
DE8224843U1 (en) * 1982-09-03 1982-12-02 Kemper-Kontakt Gert Kemper GmbH & Co KG, 5600 Wuppertal FLAT GRINDING WHEEL

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558711A1 (en) * 1991-08-26 1993-09-08 Dynabrade, Inc. Flexible sanding/deburring head
EP0558711A4 (en) * 1991-08-26 1994-03-16 Dynabrade, Inc.
US5405286A (en) * 1992-08-21 1995-04-11 Dynabrade, Inc. Flexible sanding/deburring head
EP0925153A1 (en) * 1995-08-08 1999-06-30 Sungold Abrasives USA, Inc. Flexible contour sanding disc
EP0925153A4 (en) * 1995-08-08 2001-05-16 Sungold Abrasives Usa Inc Flexible contour sanding disc

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