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EP2265410A1 - Roughing grinding wheel - Google Patents

Roughing grinding wheel

Info

Publication number
EP2265410A1
EP2265410A1 EP08874253A EP08874253A EP2265410A1 EP 2265410 A1 EP2265410 A1 EP 2265410A1 EP 08874253 A EP08874253 A EP 08874253A EP 08874253 A EP08874253 A EP 08874253A EP 2265410 A1 EP2265410 A1 EP 2265410A1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
roughing
roughing grinding
hub
applies
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
EP08874253A
Other languages
German (de)
French (fr)
Other versions
EP2265410B1 (en
Inventor
Frank Henn
Markus Bernhardt
Martin Wördehoff
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.)
August Rueggeberg GmbH and Co KG
Original Assignee
August Rueggeberg GmbH and Co KG
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 August Rueggeberg GmbH and Co KG filed Critical August Rueggeberg GmbH and Co KG
Priority to PL08874253T priority Critical patent/PL2265410T3/en
Publication of EP2265410A1 publication Critical patent/EP2265410A1/en
Application granted granted Critical
Publication of EP2265410B1 publication Critical patent/EP2265410B1/en
Not-in-force 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
    • 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
    • B24D7/16—Bushings; Mountings
    • 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
    • B24D13/08—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising annular or circular sheets packed side by side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D5/066—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental with segments mounted axially one against the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/16—Bushings; Mountings

Definitions

  • the invention relates to a roughing wheel.
  • a relatively thick circumferential grinding wheel which consists of several reinforced with tissue, the entire surface glued together individual discs, wherein in the adhesive layer, an elastic insert may be provided. Such packages have a higher grinding performance than a one-piece compact disk.
  • a compact disc is also known, each having abrasive-free zones in their radially outer regions, which are formed by annular spacers, which may optionally be removed again, so that a significant gap between the adjacent regions is formed , These abrasive-free zones lead to a particularly cool grinding during circumferential grinding and also produce additional chip space, which allows a substantial increase in the grinding performance with otherwise identical disk composition.
  • a roughing grinding wheel is known whose diameter is at least a factor of 10 greater than its thickness.
  • Such roughing wheels are used on hand-held, pneumatically or electrically operated angle grinders.
  • strong vibrations occur in the grinding insert, which can cause considerable physical damage to the hand-arm system of the user.
  • an annular separating layer is arranged between individual layers in an outer working region. Within this workspace, it has a compact design on. The separation layer has primarily the function of reducing the amplitude of vibration during grinding.
  • the invention has for its object to provide a vibration-damped roughing grinding wheel for hand-guided use, which is particularly simple in construction and thus is particularly easy to produce.
  • planar design of the roughing grinding wheel and the attachment of a hub in this makes it particularly advantageous to provide an internal thread in the hub, by means of which a screwing onto an external thread of an output shaft of a hand-held grinding machine is possible.
  • a flat configuration no nut protruding beyond the roughing wheel is required for attachment to the drive shaft of the grinding machine, so that a flat or approximately planar use of the roughing grinding wheel according to the invention is also possible.
  • This configuration of the hub can of course also be used in flat grinding wheels, which do not have the structure of the invention.
  • FIG. 1 shows a hand grinder with a roughing wheel according to the invention in the grinding insert
  • FIG. 5 is a side view of a roughing wheel according to the invention mounted on the output shaft of a hand grinder.
  • roughing wheels 1 are used on hand grinders 2, namely so-called angle grinders.
  • the grinding wheel 1 has for this purpose a central opening 3, in which a hub 4 is inserted.
  • This hub 4 has a
  • the grinding wheel 1 consists in its basic structure of several, namely two to ten, thin part discs 8 with an outer diameter D. Each part disc 8 has on its two outer sides depending on a reinforcement 9,
  • the reinforcements 9, 10 consist of one with the binder of the abrasive grain
  • a plurality of planarized dividing disks 8 are stacked on top of one another, wherein in each case an adhesive layer 12, generally thermosets, is applied in an annular region around the central opening 3.
  • This adhesive layer 12 with a diameter d is in each case so thin that when the package is pressed from a plurality of dividing disks 8 into a roughing grinding disk 1, the adhesive is absorbed in the surface roughness of the adjoining dividing disks 8.
  • the dividing disks 8 in the region of the adhesive layer 12 with the diameter d are fixedly connected to each other, and that they are not connected to each other outside of the respective adhesive layer 12, but are close together.
  • the hub 4 passes through the central opening 3 of the grinding wheel 1 on one side, on the side facing away from the grinding machine 2, only slightly with a flanged edge 14, so that the roughing grinding wheel 1, although not cranked, but completely flat is formed, as a roughing grinding wheel 1, ie in the manner described above and shown in Fig. 1, can be used obliquely. But it is also a surface grinding possible in which the roughing grinding wheel 1 with its the edge 14 of the hub associated end face 15 is used flat or approximately flat on a workpiece 16. If the roughing grinding wheel 1 is inserted obliquely as shown in FIG.

Landscapes

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

Abstract

A roughing-grinding disc consists of a plurality of part discs, which are flat in design, are located closely against one another, unconnected and uncovered, in an outer working region, are rigidly connected to one another in an inner connecting region located within the working region and are provided with a hub passing through the grinding disc in a centre opening.

Description

Schrupp-Schleifscheibe Rough-grinding wheel
Die Erfindung betrifft eine Schrupp-Schleifscheibe.The invention relates to a roughing wheel.
Aus der CH-PS 434 023 ist eine relativ dicke Umfangs-Schleifscheibe bekannt, die aus mehreren mit Gewebe verstärkten, vollflächig miteinander verklebten Einzelscheiben besteht, wobei in der Klebemittelschicht eine elastische Einlage vorgesehen sein kann. Solche Paketscheiben haben eine höhere Schleifleistung als eine einstückig aufgebaute Kompaktscheibe. Aus der CH-PS 434 023 ist darüber hinaus eine Kompaktscheibe bekannt, die in ihren radial äußeren Bereichen jeweils schleifmittelfreie Zonen aufweist, die von ringförmigen Zwischenlagen gebildet sind, die gegebenenfalls wieder entfernt werden können, so dass ein deutlicher Spalt zwischen den benachbarten Bereichen ausgebildet wird. Diese schleifmittelfreien Zonen führen beim Umfangsschleifen zu einem besonders kühlen Schliff und erzeugen außerdem noch weiteren Spanraum, der eine wesentliche Erhöhung der Abschliffleistung bei sonst gleicher Scheibenzusammensetzung ermöglicht.From CH-PS 434 023 a relatively thick circumferential grinding wheel is known, which consists of several reinforced with tissue, the entire surface glued together individual discs, wherein in the adhesive layer, an elastic insert may be provided. Such packages have a higher grinding performance than a one-piece compact disk. From CH-PS 434 023 a compact disc is also known, each having abrasive-free zones in their radially outer regions, which are formed by annular spacers, which may optionally be removed again, so that a significant gap between the adjacent regions is formed , These abrasive-free zones lead to a particularly cool grinding during circumferential grinding and also produce additional chip space, which allows a substantial increase in the grinding performance with otherwise identical disk composition.
Aus der EP 1 543 923 Al ist eine Schrupp-Schleifscheibe bekannt, deren Durchmesser um mindestens den Faktor 10 größer ist als ihre Dicke. Derartige Schrupp-Schleifscheiben werden an handgeführten, pneumatisch oder elektrisch betriebenen Winkel- Schleifmaschinen eingesetzt. Hierbei treten im Schleifeinsatz starke Vibrationen auf, die erhebliche körperliche Schäden des Hand- Arm-Systems des Benutzers verursachen können. Zur Reduktion derartiger Vibrationen ist zwischen einzelnen Schichten in einem äußeren Arbeitsbereich jeweils eine ringförmige Trennschicht angeordnet. Innerhalb dieses Arbeitsbereichs weist sie einen kompakten Aufbau auf. Die Trennschicht hat primär die Funktion, die Amplitude der Vibration beim Schleifen zu reduzieren.From EP 1 543 923 A1 a roughing grinding wheel is known whose diameter is at least a factor of 10 greater than its thickness. Such roughing wheels are used on hand-held, pneumatically or electrically operated angle grinders. In this case, strong vibrations occur in the grinding insert, which can cause considerable physical damage to the hand-arm system of the user. In order to reduce such vibrations, an annular separating layer is arranged between individual layers in an outer working region. Within this workspace, it has a compact design on. The separation layer has primarily the function of reducing the amplitude of vibration during grinding.
Der Erfindung liegt die Aufgabe zugrunde, eine schwingungsgedämpfte Schrupp-Schleifscheibe für den handgeführten Einsatz zu schaffen, die in ihrem Aufbau besonders einfach ist und damit besonders einfach herstellbar ist.The invention has for its object to provide a vibration-damped roughing grinding wheel for hand-guided use, which is particularly simple in construction and thus is particularly easy to produce.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.
Der Aufbau aus einzelnen ebenen Teilscheiben ermöglicht eine sehr einfache Vorfertigung dieser Teilscheiben. Da sie eben sind, besteht nicht die Gefahr eines Verzugs wie bei gekröpften Scheiben, so dass sie tatsächlich so dicht wie eben möglich aneinander liegen, also in dem nicht verbundenen, d. h. nicht verklebten äußeren Arbeitsbereich, angenähert luftspaltfrei aneinander liegen.The structure of individual flat part discs allows a very simple prefabrication of these part discs. Since they are flat, there is no risk of distortion as with cranked discs, so that they are actually as close as possible to each other, ie in the unconnected, d. H. not glued outer work area, approximately free of air gap lie together.
Die ebene Ausgestaltung der Schrupp-Schleifscheibe und die Anbringung einer Nabe in dieser macht es besonders vorteilhaft, in der Nabe ein Innengewinde vorzusehen, mittels dessen ein Aufschrauben auf ein Außengewinde einer Abtriebswelle einer handgeführten Schleifmaschine möglich ist. Dies führt dazu, dass trotz der ebenen Ausgestaltung keine über die Schrupp-Schleifscheibe vorstehende Mutter zur Befestigung auf der Ab- triebswelle der Schleifmaschine benötigt wird, so dass auch ein flächiger oder angenähert flächiger Einsatz der erfindungsgemäßen Schrupp- Schleifscheibe möglich ist. Diese Ausgestaltung der Nabe kann selbstverständlich auch bei ebenen Schleifscheiben eingesetzt werden, die nicht den erfindungsgemäßen Aufbau haben. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen. Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausfuhrungsbeispiels anhand der Zeichnung. Es zeigtThe planar design of the roughing grinding wheel and the attachment of a hub in this makes it particularly advantageous to provide an internal thread in the hub, by means of which a screwing onto an external thread of an output shaft of a hand-held grinding machine is possible. As a result, despite the flat configuration, no nut protruding beyond the roughing wheel is required for attachment to the drive shaft of the grinding machine, so that a flat or approximately planar use of the roughing grinding wheel according to the invention is also possible. This configuration of the hub can of course also be used in flat grinding wheels, which do not have the structure of the invention. Advantageous embodiments emerge from the subclaims. Further features, advantages and details of the invention will become apparent from the following description of an exemplary embodiment with reference to the drawing. It shows
Fig. 1 eine Hand-Schleifmaschine mit einer Schrupp-Schleifscheibe nach der Erfindung im Schleifeinsatz,1 shows a hand grinder with a roughing wheel according to the invention in the grinding insert,
Fig. 2 eine Schrupp-Schleifscheibe nach der Erfindung in perspekti- vischer Darstellung,2 shows a roughing grinding wheel according to the invention in perspective view,
Fig. 3 die Schrupp-Schleifscheibe nach der Erfindung in Explosionsdarstellung vor der Montage,3 shows the roughing grinding wheel according to the invention in an exploded view before assembly,
Fig. 4 eine Teilscheibe einer erfindungsgemäßen Schrupp-4 shows a partial disk of a roughing
Schleifscheibe in einer Seitenansicht undGrinding wheel in a side view and
Fig. 5 eine auf die Abtriebswelle einer Hand-Schleifmaschine montierte Schrupp-Schleifscheibe nach der Erfindung in Seitenan- sieht.FIG. 5 is a side view of a roughing wheel according to the invention mounted on the output shaft of a hand grinder. FIG.
Wie aus Fig. 1 und 5 hervorgeht, werden Schrupp-Schleifscheiben 1 an Hand- Schleifmaschinen 2, und zwar sogenannten Winkel-Schleifmaschinen, eingesetzt. Die Schleifscheibe 1 weist hierzu eine Mittel- Öffnung 3 auf, in die eine Nabe 4 eingesetzt ist. Diese Nabe 4 weist einAs is apparent from FIGS. 1 and 5, roughing wheels 1 are used on hand grinders 2, namely so-called angle grinders. The grinding wheel 1 has for this purpose a central opening 3, in which a hub 4 is inserted. This hub 4 has a
Innengewinde 5 auf, mittels dessen die Schleifscheibe 1 auf eine mit einem Außengewinde 6 versehene Abtriebswelle 7 der Schleifmaschine 2 aufgeschraubt wird. Die Schleifscheibe 1 besteht in ihrem Grundaufbau aus mehreren, und zwar zwei bis zehn, dünnen Teilscheiben 8 mit einem Außendurchmesser D. Jede Teilscheibe 8 weist an ihren beiden Außenseiten je eine Armierung 9,Internal thread 5, by means of which the grinding wheel 1 is screwed onto a provided with an external thread 6 output shaft 7 of the grinding machine 2. The grinding wheel 1 consists in its basic structure of several, namely two to ten, thin part discs 8 with an outer diameter D. Each part disc 8 has on its two outer sides depending on a reinforcement 9,
10 auf, wobei zwischen den beiden Armierungen 9, 10 mit Bindemitteln, in der Regel Phenolharz, gebundenes Schleifkorn 11 angeordnet ist. Die Armierungen 9, 10 bestehen aus einem mit dem Bindemittel des Schleifkorns10, wherein between the two reinforcements 9, 10 with binders, usually phenolic resin, bonded abrasive grain 11 is arranged. The reinforcements 9, 10 consist of one with the binder of the abrasive grain
11 imprägnierten Gewebe, in der Regel einem Glasgewebe. Diese Teilscheiben 8 sind gehärtet. Die Teilscheiben 8 weisen auf ihren Außenseiten, also auf den freiliegenden Flächen der Armierungen 9, 10, keine Etiketten oder Papierlagen oder dergleichen auf, sind also unkaschiert.11 impregnated tissue, usually a glass fabric. These dividing discs 8 are hardened. The part discs 8 have on their outer sides, ie on the exposed surfaces of the reinforcements 9, 10, no labels or paper layers or the like, so are unbacked.
Zur Herstellung einer Schrupp-Schleifscheibe 1 werden mehrere eben ausgebildete Teilscheiben 8 übereinander gestapelt, wobei in einem ringförmigen Bereich um die Mittel-Öffnung 3 jeweils eine Klebstoff-Schicht 12, in der Regel Duromere, aufgetragen ist. Diese Klebstoff-Schicht 12 mit einem Durchmesser d ist jeweils so dünn, dass beim Verpressen des Pakets aus mehreren Teilscheiben 8 zu einer Schrupp-Schleifscheibe 1 der Klebstoff in der Oberflächenrauhigkeit der aneinanderliegenden Teilscheiben 8 aufgenommen wird. Dies hat zur Folge, dass die Teilscheiben 8 im Bereich der Klebstoff-Schicht 12 mit dem Durchmesser d fest miteinander verbunden sind, und dass sie außerhalb der jeweiligen Klebstoff- Schicht 12 nicht miteinander verbunden sind, aber dicht aneinander liegen. „Dicht aneinander liegen" bedeutet in diesem Zusammenhang nicht, dass benachbarte Schleifscheiben 1 hier einen Abstand von exakt 0 aufweisen, sondern dass kein praktisch relevanter Luftspalt zwischen zwei benachbarten Teilscheiben 8 besteht. Für die Dicke a einer Schleifscheibe 1 aus n Teilscheiben 8 mit einer Dicke b gilt also: a ~ n x b. Für die Dicke b der Teilscheiben 8 gilt: 0,8 mm < b < 1,4 mm. Für das Verhältnis von Durchmesser d der Klebstoff-Schicht 12 zum Außendurchmesser D der Schleifscheibe 1 gilt: 0,2 < d/D < 0,65. Für den Außendurchmesser D gilt: 10 mm < D < 300 mm. Der Bereich, in dem die benachbarten Teilscheiben 8 nicht miteinander verbunden sind, bildet den Arbeitsbereich 13 der Schleifscheibe 1.To produce a roughing grinding wheel 1, a plurality of planarized dividing disks 8 are stacked on top of one another, wherein in each case an adhesive layer 12, generally thermosets, is applied in an annular region around the central opening 3. This adhesive layer 12 with a diameter d is in each case so thin that when the package is pressed from a plurality of dividing disks 8 into a roughing grinding disk 1, the adhesive is absorbed in the surface roughness of the adjoining dividing disks 8. As a result, the dividing disks 8 in the region of the adhesive layer 12 with the diameter d are fixedly connected to each other, and that they are not connected to each other outside of the respective adhesive layer 12, but are close together. "Close to each other" in this context does not mean that adjacent grinding wheels 1 here have a distance of exactly 0, but that there is no practically relevant air gap between two adjacent dividing disks 8. For the thickness a of a grinding wheel 1 of n dividing disks 8 with a thickness The following therefore holds true for the thickness b of the index discs 8: 0.8 mm <b <1.4 mm For the ratio of the diameter d of the adhesive layer 12 to the outer diameter D of the grinding wheel 1, the following applies: 0.2 <d / D <0.65. For outer diameter D: 10 mm <D <300 mm. The region in which the adjacent dividing disks 8 are not connected to one another forms the working region 13 of the grinding wheel 1.
Die Nabe 4 durchsetzt die Mittel-Öffnung 3 der Schleifscheibe 1 auf einer Seite, und zwar auf der der Schleifmaschine 2 abgewandten Seite, nur geringfügig mit einem umgebördelten Rand 14, so dass die Schrupp- Schleifscheibe 1, obwohl sie nicht gekröpft, sondern völlig eben ausgebildet ist, als Schrupp-Schleifscheibe 1, also in der eingangs geschilderten und in Fig. 1 dargestellten Weise, schräg eingesetzt werden kann. Es ist aber auch ein Flächenschliff möglich, bei dem die Schrupp-Schleifscheibe 1 mit ihrer dem Rand 14 der Nabe zugeordneten Stirnseite 15 flächig oder angenähert flächig auf einem Werkstück 16 eingesetzt wird. Wenn die Schrupp-Schleifscheibe 1 entsprechend der Darstellung in Fig. 1 schräg eingesetzt wird, dann geschieht dies unter einem Winkel α zwischen der Achse 17 der Scheibe 1 und damit auch der Abtriebswelle 7 der Schleifmaschine 2 gegenüber einer Senkrechten 18 zur zu schleifenden Oberfläche 19 des Werkstücks 16. Für den Winkel α gilt: 20° < α < 60°. Wenn dagegen in der erwähnten Weise flächig geschliffen wird, dann gilt für den Winkel α: α « 0°. The hub 4 passes through the central opening 3 of the grinding wheel 1 on one side, on the side facing away from the grinding machine 2, only slightly with a flanged edge 14, so that the roughing grinding wheel 1, although not cranked, but completely flat is formed, as a roughing grinding wheel 1, ie in the manner described above and shown in Fig. 1, can be used obliquely. But it is also a surface grinding possible in which the roughing grinding wheel 1 with its the edge 14 of the hub associated end face 15 is used flat or approximately flat on a workpiece 16. If the roughing grinding wheel 1 is inserted obliquely as shown in FIG. 1, this is done at an angle α between the axis 17 of the disk 1 and thus also the output shaft 7 of the grinding machine 2 with respect to a vertical 18 to be sanded surface 19 of Workpiece 16. For the angle α applies: 20 ° <α <60 °. If, on the other hand, it is ground flat in the above-mentioned manner, the following applies for the angle α: α «0 °.

Claims

Patentansprüche claims
1. Schrupp-Schleifscheibe ( 1 ), bestehend aus mehreren Teilscheiben (8), die - eben ausgebildet sind, eine gemeinsame Achse (17) aufweisen, auf ihren j eweiligen axial zur Achse (17) liegenden Außenseiten eine Armierung (9, 10) aufweisen, zwischen den Armierungen (9, 10) jeder Teilscheibe (8) mit Kunst- harz gebundenes Schleifkorn (11) aufweisen, einen Außendurchmesser D aufweisen, in einem radial zur Achse (17) äußeren Arbeitsbereich (13) unver- bunden und unkaschiert dicht aufeinander liegen, in einem innerhalb des äußeren Arbeitsbereiches (13) liegenden radial zur Achse (17) inneren Verbindungs-Bereich mit einem1. roughing grinding wheel (1), consisting of a plurality of part discs (8), which - are formed having a common axis (17), on their j eweiligen axially to the axis (17) lying outside a reinforcement (9, 10) have, between the reinforcements (9, 10) of each part disc (8) bonded with synthetic resin abrasive grain (11) having an outer diameter D, in a radially to the axis (17) outer working area (13) unbound and unbacked tight lying on top of each other, in a within the outer working area (13) lying radially to the axis (17) inner connection area with a
Durchmesser d fest miteinander verbunden sind und in einer Mittel-Öffnung (3) mit einer die Schleifscheibe (1) durchsetzenden Nabe (4) versehen sind.Diameter d are firmly connected to each other and in a central opening (3) with a grinding wheel (1) passing through hub (4) are provided.
2. Schrupp-Schleifscheibe (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Teilscheiben (8) in dem inneren Verbindungs-Bereich mittels einer Klebstoff-Schicht (12) miteinander verbunden sind.2. roughing grinding wheel (1) according to claim 1, characterized in that the part discs (8) in the inner connection region by means of an adhesive layer (12) are interconnected.
3. Schrupp-Schleifscheibe (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Nabe (4) an einer Stirnseite (15) der Schrupp-Schleifscheibe (1) nur einen umgebördelten Rand (15) aufweist. 3. roughing grinding wheel (1) according to claim 1 or 2, characterized in that the hub (4) on an end face (15) of the roughing grinding wheel (1) has only a flanged edge (15).
4. Schrupp-Schleifscheibe (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Teilscheiben (8) eine Dicke b aufweisen, für die gilt: 0,8 mm < b < 1,4 mm.4. roughing grinding wheel (1) according to one of claims 1 to 3, characterized in that the part discs (8) have a thickness b, for which applies: 0.8 mm <b <1.4 mm.
5. Schrupp-Schleifscheibe (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass für die Zahl n der Teilscheiben (8) gilt: 2 < n < 10.5. roughing grinding wheel (1) according to one of claims 1 to 4, characterized in that for the number n of the part discs (8) applies: 2 <n <10.
6. Schrupp-Schleifscheibe (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass für das Verhältnis des Durchmessers d des inneren Verbindungs- Bereiches zum Außendurchmesser D der Teilscheiben (8) gilt: 0,2 < d/D < 0,65.6. roughing grinding wheel (1) according to one of claims 1 to 5, characterized in that for the ratio of the diameter d of the inner connecting portion to the outer diameter D of the part discs (8) applies: 0.2 <d / D <0 , 65th
7. Schrupp-Schleifscheibe (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass für den Außendurchmesser D der Teilscheiben (8) gilt: 100 mm < D < 300 mm.7. roughing grinding wheel (1) according to one of claims 1 to 6, characterized in that for the outer diameter D of the part discs (8) applies: 100 mm <D <300 mm.
8. Schrupp-Schleifscheibe (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Nabe (4) mit einem Innengewinde (5) zum Aufschrauben auf ein Außengewinde (6) einer Abtriebswelle (7) einer Schleifmaschine (2) versehen ist. 8. roughing grinding wheel (1) according to one of claims 1 to 7, characterized in that the hub (4) with an internal thread (5) for screwing onto an external thread (6) of an output shaft (7) of a grinding machine (2) is.
EP08874253A 2008-05-16 2008-11-03 Roughing grinding wheel Not-in-force EP2265410B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08874253T PL2265410T3 (en) 2008-05-16 2008-11-03 Roughing grinding wheel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008023946A DE102008023946B3 (en) 2008-05-16 2008-05-16 Rough-grinding wheel
PCT/EP2008/009236 WO2009138114A1 (en) 2008-05-16 2008-11-03 Roughing grinding wheel

Publications (2)

Publication Number Publication Date
EP2265410A1 true EP2265410A1 (en) 2010-12-29
EP2265410B1 EP2265410B1 (en) 2012-03-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08874253A Not-in-force EP2265410B1 (en) 2008-05-16 2008-11-03 Roughing grinding wheel

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US (1) US20110065369A1 (en)
EP (1) EP2265410B1 (en)
CN (1) CN102026777B (en)
AT (1) ATE548159T1 (en)
AU (1) AU2008356428B2 (en)
DE (1) DE102008023946B3 (en)
ES (1) ES2380282T3 (en)
PL (1) PL2265410T3 (en)
WO (1) WO2009138114A1 (en)

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Publication number Publication date
ATE548159T1 (en) 2012-03-15
WO2009138114A1 (en) 2009-11-19
EP2265410B1 (en) 2012-03-07
ES2380282T3 (en) 2012-05-10
CN102026777A (en) 2011-04-20
AU2008356428A1 (en) 2009-11-19
AU2008356428B2 (en) 2014-08-21
DE102008023946B3 (en) 2009-04-02
PL2265410T3 (en) 2012-08-31
US20110065369A1 (en) 2011-03-17
CN102026777B (en) 2013-06-12

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