EP1068048B1 - Outil abrasif a lamelles - Google Patents

Outil abrasif a lamelles Download PDF

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Publication number
EP1068048B1
EP1068048B1 EP99916867A EP99916867A EP1068048B1 EP 1068048 B1 EP1068048 B1 EP 1068048B1 EP 99916867 A EP99916867 A EP 99916867A EP 99916867 A EP99916867 A EP 99916867A EP 1068048 B1 EP1068048 B1 EP 1068048B1
Authority
EP
European Patent Office
Prior art keywords
flap
grinding tool
type grinding
grinding
tool according
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 - Lifetime
Application number
EP99916867A
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German (de)
English (en)
Other versions
EP1068048A1 (fr
Inventor
Marion Wendt-Ginsberg
Frank Wendt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIPL -ING GUENTER WENDT GmbH
Original Assignee
M&F Entwicklungs und Patentverwertungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by M&F Entwicklungs und Patentverwertungs GmbH filed Critical M&F Entwicklungs und Patentverwertungs GmbH
Publication of EP1068048A1 publication Critical patent/EP1068048A1/fr
Application granted granted Critical
Publication of EP1068048B1 publication Critical patent/EP1068048B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/04—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis

Definitions

  • the invention relates to a flap grinding tool that is symmetrical an axis of rotation is formed with a plurality of on the Circumference and / or end faces arranged grinding lamella, one Carrier body on which the grinding flaps are attached, and one Device for connecting the flap grinding tool to a Drive device, wherein the carrier body at least one has rotationally symmetrical lateral surface on which the grinding flaps are at least partially attached, and a quick release device for connecting a flap grinding tool to a Drive device and a set of a flap grinding tool and a quick release device.
  • flap grinding tools are preferably used for Surface processing, especially in mold or body construction used. Special advantages are the elastic adjustment of the Grinding lamellas on the workpiece contour and the cool grinding. Through the Lamella arrangement results in a very long service life Tools.
  • Sanding belts with a lamellar design are made, for example GB 938,223 A1 known per se.
  • DE 85 23 363 U1 discloses a such grinding belt on a hollow cylinder with the dimensions of a Steel strip coils to tension when winding steel strip Pressure rollers on the rewinder to create print marks eliminate before this affects the surface quality of the Can lead steel strip.
  • Flap grinding tools are known in the art to in particular to machine profiled workpiece surfaces without the Damage the surface due to scoring and the like. Especially in tool and mold making, such flap grinding tools are included radial trimmings made of grinding flaps for fine grinding and polishing work widely used on larger radii.
  • Such sander for circumferential grinding usually exist from a shaft with which the grinding tool e.g. in a drill chuck can be clamped, the profiled and with a rigid core of the Sander is glued or pressed. At its core are the Slats radially by gluing in grooves or tangentially in one Adhesive or potting layer attached.
  • Such sander are also commercially available, for example in US 4,090,333 A. described and an embodiment for screw mounting on a Shaft is also described in DE-GM 1 986 971.
  • a sander in which a number of grinding flaps in a radial arrangement embedded in a sleeve are made of a relatively hard resin material.
  • This sleeve is made of a resin material with a sheet metal cover connected, which has a bore for receiving a drive shaft.
  • the sheet metal lid also has an in on its outer peripheral edge Direction on the sleeve-shaped bead, which in corresponding grooves of the grinding flaps engages to provide positive locking against to form a radial flyout of the slats if they come out of the Loosen resin bond.
  • US 3,406,488 A is concerned essentially with the advantages of introducing certain elastomers into the grooves of the grinding lamella, where it fits the beads on the lids interact. This is the mechanical life of the Flap grinders are increased to make fractures or decay more comparable Avoid flap grinders that are essentially due to overdetermination the clamping points will be attributable.
  • flap discs for use Angle grinders are known in which the trimming consists of grinding flaps is arranged on the face of a disc.
  • Such disks are for example commercially available under the name horse Polifan and in the tool catalog 93/94 from Hch. Perschmann GmbH, Braunschweig, described.
  • These discs consist of a carrier plate Glass fiber fabric mats, the axial face with grinding lamella are equipped and a usual mounting hole in the middle Have attachment to the output spindle of an angle grinder. Glass fiber fabric mats are used so that the plate with the Slats wear evenly when the tool is switched on and one permits complete consumption of the slats.
  • flap discs for use on angle machines after The above type are also known from DE 195 11 004 C1.
  • the carrier plate made of wood shavings or Wood chips are said to consist of a resin binder hardened phenolic resin and melamine resin should be embedded and thus form a wood fiber reinforced plastic.
  • the material is said to be particularly inexpensive to manufacture result. From an environmental point of view, however, may point straight this choice of material of the carrier plate, which in any case according to consumption the flap disc remains as waste, one currently unresolved situation regarding the recyclability of the wood composite on.
  • Polishing wheel known which is essentially the one previously used for grinding wheels described structure, but instead of Sanding flap sections of a textile material for polishing are attached to using similar machines and machining operations Allow polishing of surfaces.
  • a grinding flap disc is used known with angle grinders, in the case of a disc-shaped carrier a number of grinding flaps is arranged on both end faces, on the one hand to process walls of relatively narrow grooves enable and on the other hand an increased service life of the disc to get through reversibility. For this, they are each out assembling shingle-like grinding lamellae Usable areas oriented in opposite directions.
  • the Carrier body consists of a metal pot, except for a central one disc-shaped part with a flat offset a flanged has radially outer edge, on the in turn by means of Epoxy resin the grinding flaps are glued on.
  • This embodiment is intended for mounting on an outstanding stub shaft, e.g. for use on a stationary grinding machine.
  • this tool Due to the design principle of this tool is an extremely high one Manufacturing effort for numerous millings for recesses and grooves required. Furthermore, the tool consists of a variety of Individual parts that require a relatively complicated assembly and thus involve a certain risk of accident if the users themselves try to replace used sanding sheets. Still remains also a not insignificant part of the sanding sheets as residual waste, because the holes in the sanding sheets to accommodate the Keep the support pin some distance from the end of the sanding sheet so that the holes do not tear out and the sanding sheets in the Operation fly away.
  • the invention is therefore based on the object, flap grinding tools and to provide appropriate tools in which without Reduction of operational security a more economical, in terms waste use, improved use and wider scope is possible.
  • the manufacture of a such a tool without functional disadvantages and also simplify the Reduce waste through consumption.
  • problems can arise with regard to the dimensional accuracy of such a tool can be avoided, which is more conventional due to the springback of the flanged edge during deep drawing Carrier bodies exist and because of the rolling of the raw material existing anisotropy of the semi-finished product are unavoidable.
  • the grinding lamella can be divided into several parts easy to position in a sufficiently precise orientation. To Consumption can be the parts of the invention Separate the flap grinding tool and dispose of it separately or at least partially return to the production cycle.
  • the disc is in the region of the Contact surface cranked so far that the contact surface axially outside one circumscribed by the outer edges of the grinding flaps Rotating body is arranged.
  • an inventive one Flap grinding tool characterized in that the carrier body a plastic, preferably a fiber-reinforced plastic and / or that the carrier body is made of aluminum or steel. It is advantageous if the disc is made of a plastic, preferably a fiber-reinforced plastic, or is made Washer is made of aluminum or steel.
  • the carrier ring consists of one Plastic, preferably a fiber-reinforced plastic, a Hard rubber or a hard paper is made, or that the carrier ring is made of aluminum or steel.
  • the carrier ring and washer are made of different materials are made.
  • the carrier ring and The pane is connected to one another by pressing, gluing or welding are.
  • the special advantages can also be different Use materials particularly well. After use, the individual Separate and dispose of parts separately or recycle.
  • the pane is through an automatic eccentric or centrifugal clamping device educated.
  • the consumable part keep a tool according to the invention particularly low and particularly replace quickly, in particular without the against incorrect operation Loosen safety-critical chucks or the like every time and to have to fasten again.
  • Flap grinding tool of the type mentioned or described above Type is characterized in that grinding flaps on both Circumference, as well as on an end face of the flap grinding tool are arranged.
  • radially The arranged lamellae simply allow it to project axially Execution according to the invention a simultaneous scope and Forehead grinding with comparable performance features both in terms of grinding performance and tool life. Also exists against the known tool training the great advantage that practically no There is a risk of slat parts breaking out as the slats here are only claimed in one direction in which they are for one appropriate load are designed, namely tensile load and not on bend.
  • a flap grinding tool of the type mentioned at the beginning in which the carrier body a device for connecting the Flap grinding tool with a quick clamping device for Connection of the flap grinding tool to a drive device having.
  • Lamellar grinding tool characterized in that the device for Connection of the flap grinding tool with a Quick release device is adapted to part of a bayonet or To form a bayonet connection. Such a connection allows one particularly safe and quick connection of the tool to a Drive.
  • the device for connection of the flap grinding tool with a quick clamping device or multi-start screw or nut thread in particular, if the thread is a high-helix thread and / or the thread is a rectangular or trapezoidal thread.
  • a flap grinding tool of the type described above can be produced particularly easily if the device for Connection of the flap grinding tool to a drive device comprises a shaft connected to the carrier body in a rotationally fixed manner and the Carrier body consists of a synthetic resin body, in which the Sanding flaps and the shaft are directly embedded. It is also particularly advantageous with regard to disposal after use because gives a much easier way of separating materials and so the disposal effort is reduced and at least partially Recycling of the components of the tool is possible.
  • the carrier body by at least partial shedding of one positioned between each other Sanding flaps and the shaft formed space with a plastic or synthetic resin and / or the carrier body at least partially a hard paper (fiber material).
  • the advantages of a preferred embodiment of the invention can be Use particularly well with a quick release device for connection of a flap grinding tool with a drive device in which the quick release device is designed to work with a corresponding Flap grinding tool to cooperate, especially when the disc is such a quick release device, and in a set of one such a flap grinding tool and such Quick clamping device.
  • FIG. 1 shows a flap grinding tool according to the invention, which is symmetrical about an axis of rotation 1 and a Has a plurality of grinding flaps 2 arranged on the circumference.
  • the Sanding flaps 2 are in a conventional manner, e.g. B. by means of a Adhesive 3 attached to a carrier body 4a, 4b.
  • the carrier body comprises, for example, a deep-drawn one Metal disc 4a, which as a device for connecting the Flap grinding tool with a drive device a hole 5 for Inclusion of a screw fastening of a common drive spindle having.
  • a Carrier ring 4b attached in the area of the outer circumference of the metal disc 4a .
  • On the outside of the carrier ring 4b is one jacket surface 6 oriented approximately cylindrical to axis of rotation 1 formed on which the adhesive 3 for fastening the grinding flaps 2 is applied, i.e. the lateral surface 6 is approximately 0 ° to the axis of rotation 1 inclined.
  • the metal disc 4a comprises a Central element 7, which is essentially radial to the axis of rotation 1 extends.
  • a contact surface 8 for contact a drive device.
  • the metal disc 4a cranked, resulting in a mechanically particularly stable Execution results.
  • the disc 4a is so far cranked that the contact surface 8 axially outside of one by the Outer edges of the grinding lamella 2 circumscribed body is arranged.
  • such a tool according to the invention can also be used especially good on hand-held grinders, especially Angle grinders, are used, which extends their scope extended.
  • a lamellar grinding tool according to the invention of the carrier body Plastic preferably comprise a fiber-reinforced plastic and / or that the carrier body be made of aluminum or steel. It is advantageous here. if the disc 4a is made of a plastic, preferably a fiber-reinforced plastic, or is made Washer 4a is made of aluminum or steel.
  • the carrier ring 4b made of a plastic, preferably a fiber-reinforced plastic, a hard rubber or a hard paper is made, or that the Carrier ring 4b is made of aluminum or steel.
  • disc 4a and carrier ring 4b made of weldable materials, e.g. Steel or Aluminum.
  • a weld seam for the connection of disc 4a and carrier ring 4b is denoted by 4c, which, depending on the expediency, is circumferential or only can be formed in sections or as spot welding.
  • the carrier ring 4b and Washer 4a are made of different materials.
  • the carrier ring and disc together are connected by pressing or gluing.
  • the flap grinding tool shown in Fig. 2 has for Processing especially of molds in mold making when trying highlighted particularly efficiently.
  • grinding flaps 2 are both on the circumference 9, as well as on a front lateral surface 10 of the Flap grinding tool arranged.
  • the inventive design allows a simultaneous Circumferential and forehead grinding with comparable performance features both in terms of grinding performance and tool life. Also exists the great advantage over the known tool design that there is practically no risk of slat parts breaking out, since the slats are only stressed in the direction of pull in which they are designed for a corresponding load.
  • the lamellar grinding tool shown in Fig. 3 leaves are particularly easy to manufacture because a shaft 11 as a device for connecting the flap grinding tool to a Serves drive device that is rotatably connected to the carrier body is and the carrier body consists of a synthetic resin body 12, in the the grinding flaps 2 and the shaft 11 are directly embedded.
  • This is also special with regard to disposal after use advantageous because there is a much easier way of Material separation results and thus the disposal effort is reduced and an at least partial recycling of the components of the Tool is possible.
  • the carrier body is through at least partially shedding one between them positioned grinding flaps 2 and the shaft 11 formed space with a plastic or synthetic resin.
  • a plastic or synthetic resin has been particularly suitable the use of hard paper (fiber material) emerged.
  • FIG. 4 shows a particularly advantageous embodiment of the invention shown schematically and partially simplified. This is suitable especially for use on a stationary grinding machine in the Production.
  • the grinding flaps are 2 (only a few of them are excellent) as in the other embodiments by means of adhesive 3 on a carrier ring 4b, e.g. advantageously from a hard paper, attached.
  • the carrier ring 4b is in operation radially outside by one Centrifugal or eccentric clamping device arranged in place the disc 4a occurs in the other described embodiments.
  • This centrifugal force or eccentric clamping device can for example comprise a turned aluminum core 13 which has a hole 5 for receiving a mandrel or otherwise for coupling with a Drive can be designed appropriately.
  • the aluminum core 13 or one Corresponding component made of any other suitable material can shaped like a hub.
  • Radially around the core 13 is in the Embodiment shown vulcanized a rubber ring 14.
  • the Rubber ring 14 has numerous slots 15 from its circumference provided, the slots 15 not to the radially inner edge of the Rubber ring 14 range and are arranged inclined to the radius.
  • Flap grinding tool according to the invention in which the at least one the lateral surfaces 6 or 10 approximately parallel to the axis of rotation arranged or inclined up to and including 90 ° to the axis of rotation 1 and the carrier body is a device for connecting the Flap grinding tool with a quick clamping device for Connection of the flap grinding tool to a drive device having.
  • the device for connecting the Flap grinding tool adapted with a quick release to part of e.g. in the case of the usual bayonets or To form a bayonet connection.
  • Such a connection allows one particularly safe and quick connection of the tool to a The drive and the correct fit of the tool is visually good recognizable.
  • An embodiment is also not shown in the figures preferably for stationary operation, where the Flap grinding tool has a large length in the axial direction to form a large grinding width. It is useful if the carrier body has two or more disks 4a in order to ensure good Support of the support ring 4b on the drive shaft and thus one to ensure even removal.

Claims (11)

  1. Outil abrasif à lamelles formé symétriquement autour d'un axe de rotation (1), comprenant
    a) une multitude de lamelles abrasives (2) disposées sur la circonférence et/ou aux faces frontales,
    b) un corps de support (4a, 4b, 12, 13, 14) auquel les lamelles abrasives (2) sont fixées, et
    c) un dispositif (5, 11) pour relier l'outil abrasif à lamelles à un dispositif d'entraínement,
    d) le corps de support (4a, 4b, 12, 13, 14) présentant au moins une surface d'enveloppe (6, 10) à symétrie de rotation, à laquelle les lamelles abrasives (2) sont du moins partiellement fixées,
       caractérisé en ce que
    e) le corps de support (4a, 4b, 12, 13, 14) comprend au moins un élément central (7) en forme d'un disque (4a) qui s'étend pour l'essentiel radialement à l'axe de rotation (1), et le dispositif pour relier l'outil abrasif à lamelles à un dispositif d'entraínement présente au moins une surface d'appui (8) formée par le disque (4a) pour relier l'outil abrasif à lamelles à un dispositif d'entraínement, et
    f) le corps de support (4a, 4b, 12, 13, 14) comprend une bague de support (4b) séparé de celui-ci, à la face radialement extérieure de celle-ci l'une des surfaces d'enveloppe (6, 10) étant formée à peu près parallèlement à l'axe de rotation (1) ou du moins de manière inclinée de moins que 75° par rapport à l'axe de rotation (1), et la bague de support (4b) et le disque (4a) sont réalisés à partir de matériaux différents.
  2. Outil abrasif à lamelles selon la revendication 1, caractérisé en ce que le disque (4a), dans la zone de la surface d'appui (8), est entaillé de telle sorte que la surface d'appui (8) se trouve axialement à l'extérieur d'un corps de rotation décrit par les bords extérieurs des lamelles abrasives (2).
  3. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que le disque (4a) est réalisé à partir d'une matière plastique, de préférence d'une matière plastique renforcée par des fibres, d'aluminium ou d'acier.
  4. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que la bague de support (4b) est réalisée à partir d'une matière plastique, de préférence d'une matière plastique renforcée par des fibres, d'un caoutchouc dur, d'un papier dur, d'aluminium ou d'acier.
  5. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que la bague de support (4b) et le disque (4a) sont assemblés l'un avec l'autre par enfoncement, collage ou soudage.
  6. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que le disque (4a) est formé par un dispositif de serrage à excentrique ou force centrifuge (13, 14, 15, 16).
  7. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de support (4a, 4b, 12, 13, 14) présente plusieurs disques (4a).
  8. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que des lamelles abrasives (2) sont disposées aussi bien sur la circonférence (9) qu'à une face frontale (10) de l'outil abrasif à lamelles.
  9. Outil abrasif à lamelles selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de support (4a, 4b, 12, 13, 14) présente un dispositif pour relier l'outil abrasif à lamelles à un dispositif de serrage rapide pour relier l'outil abrasif à lamelles à un dispositif d'entraínement.
  10. Outil abrasif à lamelles selon la revendication 9, caractérisé en ce que le dispositif pour relier l'outil abrasif à lamelles est adapté avec un dispositif de serrage rapide pour former une partie d'une liaison à branches ou à baïonnette.
  11. Outil abrasif à lamelles selon la revendication 9, caractérisé en ce que le dispositif pour relier l'outil abrasif à lamelles à un dispositif de serrage rapide comprend un filet mâle ou femelle à pas simple ou multiple, le filet étant un filet à pas rapide, de préférence un filet rectangulaire ou trapézoïdal.
EP99916867A 1998-03-21 1999-03-22 Outil abrasif a lamelles Expired - Lifetime EP1068048B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19812515 1998-03-21
DE19812515A DE19812515A1 (de) 1998-03-21 1998-03-21 Lamellenschleifwerkzeug
PCT/EP1999/001934 WO1999048647A1 (fr) 1998-03-21 1999-03-22 Outil abrasif a lamelles

Publications (2)

Publication Number Publication Date
EP1068048A1 EP1068048A1 (fr) 2001-01-17
EP1068048B1 true EP1068048B1 (fr) 2004-11-03

Family

ID=7861850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99916867A Expired - Lifetime EP1068048B1 (fr) 1998-03-21 1999-03-22 Outil abrasif a lamelles

Country Status (4)

Country Link
US (1) US6866572B1 (fr)
EP (1) EP1068048B1 (fr)
DE (2) DE19812515A1 (fr)
WO (1) WO1999048647A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010046878B3 (de) * 2010-09-29 2011-12-15 Dipl.-Ing. Günter Wendt GmbH Lamellenschleifwerkzeug

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DE10042109C2 (de) * 2000-08-28 2003-07-03 M & F Entw & Patentverwertungs Polierwerkzeug
JP2006501269A (ja) * 2002-09-16 2006-01-12 アルコン マニュファクチャリング，リミティド 血管新生を処置するためのｐｄｅｉｖインヒビターの使用
KR20080109718A (ko) * 2006-02-20 2008-12-17 가부시키가이샤 지벡크 테크놀로지 브러시 모양 숫돌
DE102008063943A1 (de) 2008-12-19 2010-06-24 Abb Ag Werkzeug
DE202013105892U1 (de) 2013-12-20 2014-03-13 Heinrich Kreeb Gmbh & Co. Kg Schleifkörper
US10399207B2 (en) * 2014-10-27 2019-09-03 Taimei Chemicals Co., Ltd. Polishing brush
DE102015122233A1 (de) * 2015-12-18 2017-06-22 Thyssenkrupp Ag Massereduzierter Schleif-Grundkörper
EP3434414A1 (fr) * 2017-07-26 2019-01-30 Klingspor AG Disque de traitement des matériaux

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010046878B3 (de) * 2010-09-29 2011-12-15 Dipl.-Ing. Günter Wendt GmbH Lamellenschleifwerkzeug
WO2012052090A1 (fr) 2010-09-29 2012-04-26 Günter Wendt Gmbh Outil abrasif à lamelles

Also Published As

Publication number Publication date
DE59910996D1 (de) 2004-12-09
WO1999048647A1 (fr) 1999-09-30
EP1068048A1 (fr) 2001-01-17
DE19812515A1 (de) 1999-09-23
US6866572B1 (en) 2005-03-15

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