EP2632638A1 - Lamelle de meulage destinée à être disposée sur une meule entraînée en rotation autour d'un axe de rotation - Google Patents

Lamelle de meulage destinée à être disposée sur une meule entraînée en rotation autour d'un axe de rotation

Info

Publication number
EP2632638A1
EP2632638A1 EP11763941.9A EP11763941A EP2632638A1 EP 2632638 A1 EP2632638 A1 EP 2632638A1 EP 11763941 A EP11763941 A EP 11763941A EP 2632638 A1 EP2632638 A1 EP 2632638A1
Authority
EP
European Patent Office
Prior art keywords
edge
grinding
outer edge
grinding wheel
abrasive
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.)
Granted
Application number
EP11763941.9A
Other languages
German (de)
English (en)
Other versions
EP2632638B1 (fr
Inventor
Zoltan Atila Daday
Bernhard Runden
Björn EDENHARTER
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.)
Lukas-Erzett Vereinigte Schleif- und Fraeswerkzeug
Original Assignee
Lukas-Erzett Vereinigte Schleif- und Fraswerkzeugfabriken & Co KG 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 Lukas-Erzett Vereinigte Schleif- und Fraswerkzeugfabriken & Co KG GmbH filed Critical Lukas-Erzett Vereinigte Schleif- und Fraswerkzeugfabriken & Co KG GmbH
Priority to PL11763941T priority Critical patent/PL2632638T3/pl
Publication of EP2632638A1 publication Critical patent/EP2632638A1/fr
Application granted granted Critical
Publication of EP2632638B1 publication Critical patent/EP2632638B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/008—Finishing manufactured abrasive sheets, e.g. cutting, deforming
    • 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

Definitions

  • Abrasive blade for arranging on a rotationally driven about a rotation axis
  • the invention relates to a grinding blade for arranging on a rotating drivable grinding wheel, which has an outer edge which is at least partially convex, an inner edge which is at least partially concave, a leading edge, the outer edge and the inner edge on a front side of the grinding blade with each other and a trailing edge interconnecting the outer edge and the inner edge at a rear side of the abrasive sipe. Furthermore, the invention relates to a grinding wheel with at least one support element and a plurality of such partially overlapping, together forming a ring shape grinding lamellae. The invention also relates to a pattern for such abrasive slats.
  • Such provided with a number of grinding blades grinding wheels are placed on a drive machine to be able to edit grinding workpiece surfaces.
  • Such grinding wheels and grinding blades are known in the prior art in various embodiments.
  • EP 1 142 673 B1 shows a grinding lamella of the type mentioned in the introduction which has two mutually parallel edges and between these a convex and a concave third and fourth edge.
  • the abrasive lamellae are applied like a tile overlapping on an annular support portion of a carrier.
  • the object of the present invention is, on the one hand, to propose a sanding lamella which produces minimal waste in its production and, on the other hand, to provide a sanding pad which has a high degree of covering of sanding lamellae in the edge region.
  • a grinding blade for arranging on a rotating drivable grinding wheel which has an outer edge, which is at least partially convex, an inner edge which is at least partially concave, a leading edge, the outer edge and the inner edge on a front side of the Grinding blade connects to each other, and a trailing edge, which connects the outer edge and the inner edge to each other at a rear side of the grinding blade comprises, wherein the leading edge is longer than the trailing edge and the outer edge is longer than the inner edge.
  • the advantage of the abrasive flaps according to the invention is that the degree of overlap of a grinding plate comprising such abrasive flaps in the edge region, ie where the highest speeds occur during operation of the tool and also the main working zone is maximum. This means that where the main stress lies (at the large diameter), most of the material is available, while where there is only a small contribution to the grinding removal (at the small diameter), also less abrasive material is available. As a result, a long service life of the grinding plate is achieved. This is created by relatively small abrasive flaps that allow for a thicker fluff pack, as required in some applications. Furthermore, the object is achieved by a grinding wheel with at least one carrier element and with a plurality of mutually partially overlapping, together forming a ring shape grinding lamellae according to the invention.
  • the object is achieved by a cutting pattern for a material blank or a material strip for producing abrasive wipes according to the invention, wherein the grinding fins are arranged next to each other in rows adjacent to each other, each two adjacent grinding lamellae of a row are rotated 180 degrees to each other and point-symmetrical are formed to each other.
  • edges of a sanding lamella refer to the sanding lamella package of a plurality of sanding lamellae according to the invention, wherein the sanding lamella package is arranged annularly on the finished sanding disk.
  • the outer edge is thus arranged on the outer peripheral edge of the abrasive lamella packet or of the grinding disc, the inner edge on the inner circumferential edge of the grinding disc packet, the leading edge in the direction of rotation of the grinding disc seen at the front and the trailing edge in the direction of rotation of the grinding disc at the rear.
  • the trailing edge is the edge of the individual grinding lamellae visible in the grinding lamella packet and, since it is the machining edge during grinding, is preferably rectilinear.
  • the front edge is designed to be rectilinear.
  • the outer edge has a convex outer edge section over at least part of its length.
  • the inner edge has a concave inner edge portion over at least part of its length, the convex outer edge portion and the concave inner edge portion having the same radius. The latter is important in order to ensure the lowest possible production of the grinding lamellae when they are cut from a strip. This is That is, a convex outer edge portion of a grinding fin at a concave inner edge portion of an adjacent grinding fin.
  • the outer edge can be made longer to provide as much abrasive material on the outer peripheral edge of the Schleiflamellenvers available. This can be further improved by a further straight outer edge portion is provided between the convex outer edge portion and a corner in the transition between the outer edge and the trailing edge.
  • the inner edge may be formed concave over its entire length with a constant radius such that the inner peripheral edge of the abrasive disc pack is circular.
  • the abrasive flaps are preferably bonded to the carrier element, for example by a resin.
  • the trailing edges of the grinding blades are preferably arranged radially relative to the axis of rotation.
  • the abrasive flaps are also preferably configured such that an angle enclosed by the leading edge and the trailing edge of the abrasive flaps is greater than an angle subtended by an imaginary radius referenced to the axis of rotation through a corner between the inner edge and the leading edge extends, trapping the trailing edge. This also ensures that more abrasive material is available on the outside.
  • the outer edges of the abrasive flaps are preferably arranged on the carrier element such that they form an outer peripheral edge of the abrasive wheel.
  • the carrier element is preferably dish-shaped and can be made of a metal, a resin-bonded glass fiber fabric, a fiber material or a plastic material, in particular vulcanized fiber.
  • the support member has an annular edge portion for attachment of the grinding blades and an inner hub portion, wherein in the hub portion, a bore for attachment of the grinding wheel to a drive machine is provided.
  • the pairwise 180 degree twisted arrangement of two adjacent grinders of a herring of the pattern and the point symmetric design of the abrasive slats allows all the abrasive slats to be identically shaped and multiple rows can be cut side by side from a band of abrasive material without any wastage between rows or between adjacent ones Abrasive blades of a series arise.
  • the cutting pattern is preferably designed such that in each case two adjacent grinding lamellae which abut each other with their trailing edges form two marginal edges of the row, the marginal edges each having a concave edge region and a convex edge region, between which straight edge regions are provided. Furthermore, each marginal edge may each form the inner edge of one of the two adjacent abrasive flaps and the outer edge of the other of the two adjacent abrasive flaps.
  • FIG. 1 is a plan view of a grinding blade according to the invention
  • Figure 2 shows an inventive pattern
  • FIG. 3 shows a grinding wheel according to the invention.
  • Figure 1 shows a plan view of a grinding blade 1 according to the invention with an outer edge 2, an inner edge 3, a front edge 4 and a trailing edge 5. Die Designations of the edges 3, 4, 5, 6 of the grinding blade 1 are derived from the arrangement of the grinding blade 1 on a support member 15 of a grinding wheel 19. The outer edge 2 is thus arranged on an outer peripheral edge of the grinding wheel 19, the inner edge 3 faces inwardly to a hub portion 18 of the support member 15, the leading edge 4 is arranged in the direction of rotation D of the grinding wheel 1 about the axis of rotation front and the rear edge 5 according to the rear.
  • the outer edge 2 has a plurality of sections / regions, wherein a straight outer edge section 7 extends from a first corner 6 between the outer edge 2 and the front edge 4. This is followed by a convex outer edge portion 8, which is followed by a straight outer edge portion 9 which terminates at a second corner 10 between the outer edge 2 and the trailing edge 5.
  • the inner edge 3 is over its entire length, d. H. formed between a third corner 1 1 between the front edge 4 and the inner edge 3 and a fourth corner 12 between the trailing edge 5 and the inner edge 3 is completely concave.
  • the entire inner edge 3 thus forms a concave inner edge portion.
  • the leading edge 4 and the trailing edge 5 are both designed to be straight along their entire length.
  • the front edge 4 is designed to be longer than the trailing edge 5, wherein the front edge 4 and the trailing edge 5 form an angle to each other, which is open to the outer edge 2 out.
  • FIG. 2 shows a band 14 made of an abrasive material which extends in the direction of the arrow P and on which the pattern for producing the abrasive lamellae 1 from the band 14 is shown.
  • the cut-out grinding blades 1 are arranged next to each other in rows 13 next to each other.
  • Each two adjacent grinding lamellae 1 of a row 13 are arranged rotated by 180 ° to each other, wherein two adjacent grinding lamellae 1 abut either with their leading edges 4 or their trailing edges 5.
  • the grinding blades 1 are arranged in pairs symmetrically to one another.
  • FIG. 3 shows a plan view of a sanding pad with abrasive flaps 1 according to the invention.
  • the individual grinding blades 1 are arranged partially overlapping in the form of an annular Schleimamellenpaktes on a support member 15 and bonded to the support member 15.
  • the support member 15 has a likewise annular support portion 16, on which the abrasive slats 1 are glued.
  • the carrier element 15 has an inner hub portion 18, in which a bore 17 is provided, by means of which the grinding wheel 19 can be attached to a drive machine.
  • the leading edges 4 of the grinding lamellae 1 are arranged concealed under the subsequent grinding lamella 1.
  • the trailing edge 5 is visible and limits the working range of the grinding blade 1, which can be used on the front side.
  • the trailing edge 5 is in this case arranged radially to a rotational axis D of the grinding wheel 19. In principle, however, it is also conceivable that the trailing edge 5 deviates slightly from an imaginary radius to the axis of rotation D.
  • the leading edge 4, however, is not arranged radially to the rotational axis D but at an angle such that the angle between the leading edge 4 and the trailing edge 5 is greater than if the leading edge 4 were arranged radially.

Landscapes

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

Abstract

L'invention concerne une lamelle de meulage (1) destinée à être disposée sur une meule (19) entraînée en rotation autour d'un axe de rotation (D), comprenant une arête extérieure (2), qui est configurée au moins partiellement convexe, une arête intérieure (3), qui est configurée au moins partiellement concave, une arête frontale (4) qui relie entre elles l'arête extérieure (2) et l'arête intérieure (3), sur une face frontale de la lamelle de meulage (1), et une arête arrière (5), qui relie entre elles l'arête extérieure (2) et l'arête intérieure (3), sur une face arrière de la lamelle de meulage, l'arête frontale (4) étant plus longue que l'arête arrière (5), et l'arête extérieure (2) étant plus longue que l'arête intérieure (3).
EP11763941.9A 2010-10-26 2011-09-30 Meule avec plusieurs lamelles de meulage Active EP2632638B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11763941T PL2632638T3 (pl) 2010-10-26 2011-09-30 Tarcza szlifierska z wieloma lamelkami szlifierskimi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010008898U DE202010008898U1 (de) 2010-10-26 2010-10-26 Schleiflamelle zum Anordnen auf einer um eine Drehachse rotierend antreibbaren Schleifscheibe
PCT/EP2011/067144 WO2012055671A1 (fr) 2010-10-26 2011-09-30 Lamelle de meulage destinée à être disposée sur une meule entraînée en rotation autour d'un axe de rotation

Publications (2)

Publication Number Publication Date
EP2632638A1 true EP2632638A1 (fr) 2013-09-04
EP2632638B1 EP2632638B1 (fr) 2016-11-09

Family

ID=43403043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11763941.9A Active EP2632638B1 (fr) 2010-10-26 2011-09-30 Meule avec plusieurs lamelles de meulage

Country Status (9)

Country Link
US (1) US9056388B2 (fr)
EP (1) EP2632638B1 (fr)
BR (1) BR112013010020B1 (fr)
CA (1) CA2815574C (fr)
DE (1) DE202010008898U1 (fr)
ES (1) ES2608878T3 (fr)
PL (1) PL2632638T3 (fr)
RU (1) RU2013124060A (fr)
WO (1) WO2012055671A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008898U1 (de) 2010-10-26 2010-12-30 Lukas-Erzett Vereinigte Schleif- Und Fräswerkzeugfabriken Gmbh & Co. Kg Schleiflamelle zum Anordnen auf einer um eine Drehachse rotierend antreibbaren Schleifscheibe
SI3015222T1 (en) * 2015-07-09 2018-04-30 Lukas-Erzett Vereinigte Schleif- Und Fraeswerkzeugfabriken Gmbh & Co. Kg Sanding disc
CN110505831B (zh) * 2017-02-22 2021-07-09 Acs工业股份有限公司 旋转分段式地板起蜡垫
AT520116B1 (de) * 2017-07-11 2022-10-15 Tyrolit Schleifmittelwerke Swarovski Kg Fächerschleifscheibe für einen Winkelschleifer
CN111230760A (zh) * 2018-11-29 2020-06-05 东泰高科装备科技有限公司 一种抛光垫尾料的利用方法

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DE29510727U1 (de) 1995-01-24 1995-08-31 Lukas Erzett Schleif Fraes Werkzeug, insbesondere Schleif- oder Polierteller
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Also Published As

Publication number Publication date
RU2013124060A (ru) 2014-12-10
CA2815574A1 (fr) 2012-05-03
PL2632638T3 (pl) 2017-06-30
US20130273822A1 (en) 2013-10-17
CA2815574C (fr) 2016-08-16
EP2632638B1 (fr) 2016-11-09
DE202010008898U1 (de) 2010-12-30
BR112013010020A2 (pt) 2016-08-02
ES2608878T3 (es) 2017-04-17
BR112013010020B1 (pt) 2020-05-26
WO2012055671A1 (fr) 2012-05-03
US9056388B2 (en) 2015-06-16

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