WO2009078703A1 - Corps de meulage avec lamelles se chevauchant - Google Patents

Corps de meulage avec lamelles se chevauchant Download PDF

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Publication number
WO2009078703A1
WO2009078703A1 PCT/NL2007/050655 NL2007050655W WO2009078703A1 WO 2009078703 A1 WO2009078703 A1 WO 2009078703A1 NL 2007050655 W NL2007050655 W NL 2007050655W WO 2009078703 A1 WO2009078703 A1 WO 2009078703A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
grinding body
body according
lamella
abrasive
Prior art date
Application number
PCT/NL2007/050655
Other languages
English (en)
Inventor
Sandro Giovanni Giuseppe Ferronato
Bob Burgess
Erik Mulder
Ramon Comella
Original Assignee
Kgs Diamond Holding B.V.
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 Kgs Diamond Holding B.V. filed Critical Kgs Diamond Holding B.V.
Priority to DE112007003734T priority Critical patent/DE112007003734T5/de
Priority to PCT/NL2007/050655 priority patent/WO2009078703A1/fr
Publication of WO2009078703A1 publication Critical patent/WO2009078703A1/fr

Links

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
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Definitions

  • the invention is related to a grinding body, comprising a carrier element and a series of lamellae or flaps supported on the carrier element, which lamellae are arranged according to a ring and overlap each other in the circumferential direction of the ring, said lamellae at the surface thereof facing away from the carrier element each being provided with an abrasive coating.
  • Such a grinding body carried out as a grinding disc, is disclosed in European patent application 1266724.
  • Said prior art grinding disc comprises a series of segments which consist of a flexible carrier material the outer surface of which is coated with a granular abrasive material.
  • a specific desired grinding action can be obtained by using this grinding body.
  • said granular abrasive material can be used for stock removal grinding.
  • Other granular abrasive materials may be fit for purposes of polishing a surface.
  • the object of the invention is therefore to provide a grinding body of the type described before, which is better adapted for treating different types of materials. Said object is achieved in that the abrasive coating comprises at least two different types of abrasive material.
  • the grinding body according to the invention different but specific effects are obtained as a result of the presence of the different types of abrasive material. It turns out that such combination of different types of abrasive material provides a better grinding result for a range of different materials to be treated. Furthermore, it turns out that the useful life of the grinding body in question is favourably influenced. Furthermore, the grinding body according to the invention appears to provide better cutting properties. Also, the process of stock removal appears to be favourably influenced by the combination of different types of abrasive materials.
  • the abrasive coating comprises at least two layers of an abrasive material, each layer comprising an abrasive material of a type which is different from the type of material of another layer. These layers of abrasive material at least partly overlap each other. In particular, at least one of the layers of abrasive material fully covers each lamella. In a most preferred embodiment, at least one of the layers of abrasive material covers a radial innermost area of each lamella, and has a radial outer boundary the radius of which is smaller than the corresponding radius of another layer. The latter embodiment can be carried out in various ways.
  • the carrier element comprises a substantially flat plate.
  • the lamellae each have two radial extending edges one edge of which is connected to the plate and the other edge of which is a free edge.
  • the lamellae in question together form a substantially flat surface, however with a regular pattern of raised and radially extending rims at the location of overlap of every two lamellae.
  • these rims When using the grinding body, these rims are in touch with the surface to be treated and therefore provide the grinding action required. After some time, the rims starts to exhibit wear, however after wearing down somewhat, the relatively less raised parts of the lamellae in question start to contact the surface and continue to exert the grinding action.
  • the lamella which is covered by another lamella extends past the free edge of said covering lamella in the circumferential direction of the ring.
  • the lamellae therefore, which are connected to the plate at one radially extending edge only, are lying somewhat loose on top of each other but are pressed onto each other when exerting a grinding action on an object to be treated.
  • the lamellae in question make a very sharp, acute angle with the respect to the surfaces of the plate onto which they are connected.
  • a further type of grinding body is disclosed in United States patent 5722881.
  • Said prior art grinding body has been carried out as a wheel, carrying the lamellae on the axially extending outer surface of the wheel.
  • the lamellae now together form a curved outer surface, which makes it possible to carry out specific grinding actions depending on the geometry of the surface to be treated.
  • the combination of different abrasive materials can be applied to such type of the grinding body as well.
  • the invention can be applied to grinding bodies which contain a combination of the radially extending and axially extending lamellae, as is disclosed in the abovementioned European patent application 1266724.
  • Figure Ia shows the top view of a first embodiment of a grinding disc according to the invention.
  • Figure Ib shows a second embodiment.
  • Figure Ic shows a third embodiment.
  • Figure Id shows a fourth embodiment.
  • Figure 2 shows a side view
  • Figure 3 a shows a radial section of a lamella according to IHa-IIIa of figure Ia.
  • Figure 3b shows a radial section of a lamella according to IHb-IIIb of figure Ib.
  • Figure 3c show a radial section of the lamella according to IIIc-IIIc of figure Ic.
  • Figure 3d shows a radial section of a lamella according to IHd-IIId of figure Id.
  • Figure 4 shows the view according to IV of figure 1.
  • Figure 5 shows a further embodiment.
  • the grinding discs according to figures 1 -4 comprise a carrier 1 with an essentially flat, ring shaped element 18, and a centrally located conical part 2 for connection to a grinding tool (not shown).
  • Said lamellae 5 overlap each other as shown in figure 2, and have a radially extending fixed edge 7 connected to the surface 3 of the carrier 1 as well as an opposite radially extending free edge 6.
  • the fixed edges 7 of the lamellae 5 are each covered by the neighbouring lamellae 5.
  • each lamella makes a sharp angle with respect to the carrier 1, and are virtually lying flat on top of each other.
  • each lamella has a part 16 which is raised somewhat in axial direction and which lies on top of another lamella.
  • the grinding action in the first place is exerted by means of these somewhat axially raised parts 16 of the lamellae 5.
  • the grinding disc rotates according to the arrow as indicated in the figures Ia, 2 and 4.
  • each lamella 5 consists of a backing layer 8 on top of which a base layer 9 of an abrasive coating extends from the radial inner boundary 10 up to the radial outer boundary 11.
  • the base layer 9 fully covers the backing layer 8.
  • the abrasive base layer 9 consists of a large number of abrading particles 13, adhered to the backing layer 8 by for instance a glue et cetera.
  • a further layer, or top layer, 13 of an abrasive coating material, which may be different from the abrasive coating material of the base layer 9, has been applied on top of the base layer 9.
  • Said top layer 13 extends from its radial inner boundary 15 up to its radial outer boundary 14.
  • the radial inner boundary 15 has however a smaller radius than the radial outer boundary 11 of the base layer 9.
  • the radial innermost part of the base layer 9 is not covered by the top layer 13.
  • top layer 13 is positioned in the middle of the base layer 9, when seen in a radial direction. Its radial outer boundary 14 is positioned at a smaller radius than the outer boundary 11 of the base layer 9, its inner boundary 15 is at a larger radius than the inner radius 10 of the base layer 9.. It will however be clear that said top layer 15 can be at any radial position, including a radial outer most position as shown in the embodiment of figures Ic and 3c.
  • the inner radius 14 of the top Iayerl3 is at the same radius as the inner radius 10 of the base layer 9; its outer boundary radius 15 is at a smaller radius than the outer boundary 11 of the base layer 9. All other positions not shown in these figures are of course possible as well, including as shown in the embodiment of figures Id and 3d according to which the top layer 13 fully covers the base layer 9.
  • the dimension in radial direction of said top layer 13 can be varied, so as to cover the base layer 9 to a greater or lesser extent.
  • a grinding action is exerted on the object to be treated by both the abrasive particles 17 of the top layer 13 as well as by the abrasive particles 12 of the base layer 9. It appears that due to this combined action of the abrasive particles 12 and 17, good results are obtained for a range of different materials to be treated.
  • the embodiment according to figure 5 resembles the embodiment of figure 2 to a large extent, except for the conical ring shaped element 19 of the carrier 1.
  • the lamellae 5 are positioned on top of said conical ring shaped element 19.
  • the several different positions of the top layer 13 are possible as well.
  • the shape of the lamellae can be varied. Other shapes than those which are shown are possible as well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un corps de meulage qui comprend une série de lamelles (5) disposées en anneau et qui se chevauchent partiellement dans le sens de la périphérie de l'anneau, ainsi qu'un élément de support (1) sur lequel repose ladite série de lamelles (5), et sur la surface duquel celles-ci sont tournées à l'opposé de l'élément de support (1) et comportent chacune un revêtement abrasif (9, 13). Le revêtement abrasif (9, 13) comprend au moins deux types différents de matériaux abrasifs (12, 17).
PCT/NL2007/050655 2007-12-14 2007-12-14 Corps de meulage avec lamelles se chevauchant WO2009078703A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112007003734T DE112007003734T5 (de) 2007-12-14 2007-12-14 Schleifkörper mit überlappenden Lamellen
PCT/NL2007/050655 WO2009078703A1 (fr) 2007-12-14 2007-12-14 Corps de meulage avec lamelles se chevauchant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NL2007/050655 WO2009078703A1 (fr) 2007-12-14 2007-12-14 Corps de meulage avec lamelles se chevauchant

Publications (1)

Publication Number Publication Date
WO2009078703A1 true WO2009078703A1 (fr) 2009-06-25

Family

ID=39315055

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2007/050655 WO2009078703A1 (fr) 2007-12-14 2007-12-14 Corps de meulage avec lamelles se chevauchant

Country Status (2)

Country Link
DE (1) DE112007003734T5 (fr)
WO (1) WO2009078703A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009016981U1 (de) * 2009-12-16 2011-04-28 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Fächerschleifscheibe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0649708A1 (fr) * 1993-09-27 1995-04-26 Minnesota Mining And Manufacturing Company Meule constituée d'éléments plans individuels
DE19853550C1 (de) * 1998-11-20 2000-03-09 Ver Schmirgel & Maschf Fächerschleifscheibe
EP1120198A2 (fr) * 2000-01-28 2001-08-01 Werner Blättler Outil de meulage, dispositif ainsi équipé et procédé d'usinage de pièces mettant en oeuvre cet outil
US20060014482A1 (en) * 2004-07-15 2006-01-19 Belanger Industrial Products, In. Rotary finishing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722881A (en) 1996-08-30 1998-03-03 Merit Abrasive Products, Inc. Flap wheel
EP1266724A1 (fr) 2001-06-12 2002-12-18 sia Abrasives Industries AG Disque abrasif de meulage, produit intermédiaire et procédé de fabrication d'un tel disque abrasif

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0649708A1 (fr) * 1993-09-27 1995-04-26 Minnesota Mining And Manufacturing Company Meule constituée d'éléments plans individuels
DE19853550C1 (de) * 1998-11-20 2000-03-09 Ver Schmirgel & Maschf Fächerschleifscheibe
EP1120198A2 (fr) * 2000-01-28 2001-08-01 Werner Blättler Outil de meulage, dispositif ainsi équipé et procédé d'usinage de pièces mettant en oeuvre cet outil
US20060014482A1 (en) * 2004-07-15 2006-01-19 Belanger Industrial Products, In. Rotary finishing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009016981U1 (de) * 2009-12-16 2011-04-28 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Fächerschleifscheibe
WO2011083010A1 (fr) 2009-12-16 2011-07-14 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Meule en éventail

Also Published As

Publication number Publication date
DE112007003734T5 (de) 2010-10-14

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