EP0158200A2 - Structured abrasive wheel - Google Patents

Structured abrasive wheel Download PDF

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Publication number
EP0158200A2
EP0158200A2 EP85103452A EP85103452A EP0158200A2 EP 0158200 A2 EP0158200 A2 EP 0158200A2 EP 85103452 A EP85103452 A EP 85103452A EP 85103452 A EP85103452 A EP 85103452A EP 0158200 A2 EP0158200 A2 EP 0158200A2
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EP
European Patent Office
Prior art keywords
grinding
profile
produced
grinding wheel
segments
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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.)
Withdrawn
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EP85103452A
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German (de)
French (fr)
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EP0158200A3 (en
Inventor
Alfred Dettelbach
Rolf Seyfang
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Reich Spezialmaschinen GmbH
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Reich Spezialmaschinen GmbH
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Publication date
Application filed by Reich Spezialmaschinen GmbH filed Critical Reich Spezialmaschinen GmbH
Publication of EP0158200A2 publication Critical patent/EP0158200A2/en
Publication of EP0158200A3 publication Critical patent/EP0158200A3/en
Withdrawn legal-status Critical Current

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    • 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
    • B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex

Definitions

  • the present invention relates to a method for producing a profile grinding wheel according to the preamble of claim 1.
  • grinding wheels are used, the extent of which has a contoured counter profile to the grinding profile.
  • Profile grinding wheels the abrasive of which is applied to a plastic body as abrasive cloth, are very expensive tools.
  • a mold For the production of the plastic rings, a mold must first be made, with which the rings can then be produced repeatedly. These rings must then be coated with the abrasive cloth in the form of narrow strips using adhesive. If the profile changes slightly due to regrinding of the milling tools, the plastic rings that are produced with the original shape no longer exactly match the profile.
  • p ro fil grinding wheels which consist of an elastic base body, are labor-intensive tools in the manufacture.
  • the user must first be glue to s chleifendes profile with abrasive canvas, then with the help of this glued profile he works in the body the counter-profile one, which he then also must auskleben with abrasive strips of canvas again. If the canvas is dull, the used strips must first be removed and then new ones stuck on again.
  • Another disadvantage of this method is that a separate base body is required for each profile.
  • the object of the present invention is therefore to create a simple and inexpensive method for producing a profile grinding wheel for frequently changing profiles and a profile grinding wheel produced by this method.
  • This object is inventively achieved by the labeling in the NEN part of claims 1 and 2 discontinued characteristics.
  • the present invention makes it possible to frequently changing profiles in small quantities economically sch aftlich while to grind very profile exactly.
  • the profile it is not necessary to change the entire wheel, but only the segment-shaped grinding wheel.
  • the disc becomes pressure-elastic and achieves a high level of quality.
  • This method is used to produce a straight sanding shoe with a flexible band attached to its back.
  • This shoe is now divided from the abrasive side in the transverse direction into individual grinding segments, which, however, remain flexibly connected to one another by the inserted back band.
  • This segment-shaped grinding wheel is then placed around a cylindrical hub body, creating a regular polygon with small side lengths, the rotating body of which becomes the actual grinding wheel.
  • the segment-shaped grinding wheel is held in place by two clamping covers, which are placed on the top and bottom of the hub body and at the same time fix the individual segments in their position.
  • the hub body 1 of the profile grinding wheel has, depending on the machine type and tool spindle, differently exchangeable centering bushes 2 and 3 so that they can be used on any machine.
  • a clamping cover 4 is also attached, on the upper side the second clamping cover 5 is fastened with the aid of a clamping nut 6, these two clamping covers fix the segment grinding body 7 around the cylindrical hub body.
  • FIG. 2 shows the fan-like arrangement of the individual grinding segments 7 '; this position of the individual segments is predetermined by grooves 8 which are incorporated in the clamping covers 4 and 5, shown in FIG. 3.
  • a straight grinding shoe 9 is shown as it is produced in a foaming device not described in detail. This straight shoe is divided by dividing it into individual segments 7 'to the extent that they remain flexibly connected to one another by the back strap 10 contained therein.
  • the structure of a single grinding segment 7 ' is shown in FIG. 5. It consists of the actual plastic body 11 and the abrasive 12 firmly connected on the profile side as well as a flexible back band 10.
  • the grinding segment 7 ' has the exact counter-profile to the profile 13 of the workpiece 14 (FIG. 6).

Abstract

Zum Schleifen von häufig wechselnden Profilen wird ein gerader, in einer Schäumvorrichtung hergestellter Schleifkörper in einzelne Segmente 7' aufgeteilt und um einen zylindrischen Nabenkörper 1 gelegt, wobei ein regelmäßiges Vieleck mit kleinen Seitenlängen entsteht.For grinding frequently changing profiles, a straight grinding body produced in a foaming device is divided into individual segments 7 'and placed around a cylindrical hub body 1, a regular polygon having small side lengths being produced.

Bei einem Profilwechsel muß nicht mehr die ganze Scheibe, sondern nur der segmentförmige Schleifkörper 7 gewechselt werden, so daß auch Klein- und Mitelbetriebe in der Lage sind, selbst Profilschleifscheiben preiswert herzustellen.

Figure imgaf001
When changing the profile, it is no longer necessary to change the entire wheel, but only the segment-shaped grinding wheel 7, so that even small and medium-sized businesses are able to produce their own grinding wheels at low cost.
Figure imgaf001

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung einer Profilschleifscheibe gemäß Oberbegriff von Anspruch 1.The present invention relates to a method for producing a profile grinding wheel according to the preamble of claim 1.

Zum Schleifen profilierter Leisten und zum Schleifen von profilierten Seitenflächen an Platten, insbesondere wenn diese Seitenfläche nicht in einer geraden Linie verläuft, sondern eine konkave Linie aufweist,werden Schleifscheiben verwendet, in_deren Umfang ein konturengetreues Gegenprofil zum schleifenden Profil eingearbeitet ist.For grinding profiled strips and for grinding profiled side surfaces on panels, especially if this side surface does not run in a straight line, but instead has a concave line, grinding wheels are used, the extent of which has a contoured counter profile to the grinding profile.

Bekannte Profilschleifscheiben, bei denen das Schleifmaterial fest eingebunden ist, sind im allgemeinen nur für geringe Spanabnahme geeignet. Größere Zustellungen bedingen einen hohen Scheibenverschleiß und bei Nadelhölzern werden weiche Jahresringe zu stark abgetragen, so daß eine Profiländerung die Folge ist.Known profile grinding wheels, in which the grinding material is firmly integrated, are generally only suitable for low chip removal. Larger infeeds cause high wear on the discs and soft annual rings are worn away too much in conifers, so that a change in profile is the result.

Profilschleifscheiben, deren Schleifmittel als Schleifgewebe auf einen Kunststoffkörper aufgebracht ist, sind sehr kostenaufwendige Werkzeuge. Für die Herstellung der Kunststoffringe muß zunächst eine Form angefertigt werden, mit der dann die Ringe wiederholt hergestellt werden können. Diese Ringe müssen dann mit Hilfe von Klebstoff mit dem Schleifgewebe in Form von schmalen Streifen überzogen werden. Wenn sich dann durch Nachschleifen der Fräswerk- zeuge das Profil leicht ändert, stimmen die Kunststoffringe die mit der ursprünglichen Form hergestellt werden, nicht mehr genau mit dem Profil überein.Profile grinding wheels, the abrasive of which is applied to a plastic body as abrasive cloth, are very expensive tools. For the production of the plastic rings, a mold must first be made, with which the rings can then be produced repeatedly. These rings must then be coated with the abrasive cloth in the form of narrow strips using adhesive. If the profile changes slightly due to regrinding of the milling tools, the plastic rings that are produced with the original shape no longer exactly match the profile.

profilschleifscheiben, die aus einem elastischen Grundkörper bestehen, sind bei der Herstellung lohnaufwendige Werkzeuge. Der Benutzer muß zuerst sein zu schleifendes Profil mit Schleifleinwand bekleben, mit Hilfe dieses beklebten Profils arbeitet er dann in den Grundkörper das Gegenprofil ein, welches er dann ebenfalls wieder mit Schleifleinwandstreifen auskleben muß. Ist die Leinwand stumpf, müssen zuerst die verbrauchten Streifen abgelöst und dann wieder neue aufgeklebt werden. Nachteilig bei diesem Verfahren ist weiter, daß für jedes Profil ein separater Grundkörper nötig ist.p ro fil grinding wheels, which consist of an elastic base body, are labor-intensive tools in the manufacture. The user must first be glue to s chleifendes profile with abrasive canvas, then with the help of this glued profile he works in the body the counter-profile one, which he then also must auskleben with abrasive strips of canvas again. If the canvas is dull, the used strips must first be removed and then new ones stuck on again. Another disadvantage of this method is that a separate base body is required for each profile.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung eines einfachen und preiswerten Verfahrens zur Herstellung einer Profilschleifscheibe für häufig wechselnde Profile und einer nach diesem Verfahren hergestellten Profilschleifscheibe. Diese Aufgabe wird erfindungsgemäß durch die im kennzeich- nenden Teil der Ansprüche 1 und 2 aufgegebenen Merkmale gelöst.The object of the present invention is therefore to create a simple and inexpensive method for producing a profile grinding wheel for frequently changing profiles and a profile grinding wheel produced by this method. This object is inventively achieved by the labeling in the NEN part of claims 1 and 2 discontinued characteristics.

Die vorliegende Erfindung macht es möglich, auch häufig wechselnde Profile in geringen Mengen wirt- schaftlich und gleichzeitig sehr profilgenau zu schleifen. Bei einem Profilwechsel muß nicht die ganze Scheibe, sondern nur der segmentförmige Schleifkörper gewechselt werden. Durch Einsatz eines PUR-Schaumes als Schleifkörpermaterial wird die Scheibe druckelastisch und erreicht eine hohe Schlelfqualität.The present invention makes it possible to frequently changing profiles in small quantities economically sch aftlich while to grind very profile exactly. When changing the profile, it is not necessary to change the entire wheel, but only the segment-shaped grinding wheel. By using a PUR foam as the abrasive material, the disc becomes pressure-elastic and achieves a high level of quality.

Bei der erfindungsgemäß fächerartigen Anordnung der Schleifelemente wird ein Selbstreinigungseffekt der Schleiffläche erzielt, wodurch eine wesentliche Erhöhung der Standzeit gegenüber geschlossenen Scheiben erreicht wird. Gleichzeitig tritt durch die fächerartige Anordnung der Schleifsegmente ein Ventilatoreffekt auf, wodurch Werkstück und Schleifscheibe wesentlich weniger erwärmt werden, was insbesondere beim Schleifen von Profilen mit hohem Stirnholzanteil die Tendenz zum Brennen entscheidend vermindert.With the fan-like arrangement of the grinding elements according to the invention, a self-cleaning effect of the grinding surface is achieved, as a result of which a significant increase in the service life compared to closed discs is achieved. At the same time, a fan effect occurs due to the fan-like arrangement of the grinding segments, as a result of which the workpiece and grinding wheel are heated much less, which significantly reduces the tendency to burn, particularly when grinding profiles with a high proportion of end grain.

Aus der DE-OS 31 44077 ist ein Verfahren zur Herstellung von Kunststoffschleifkörpern bekannt, bei dem die Schleifleinwand in Form des Gegenprofils fest eingebunden ist.From DE-OS 31 44077 a method for producing plastic grinding bodies is known, in which the grinding screen is firmly integrated in the form of the counter profile.

Nach diesem Verfahren wird ein Schleifschuh in gerader Form hergestellt, auf dessen Rücken ein flexibles Band eingebunden ist. Dieser Schuh wird nun von der Schleifmittelseite her in Querrichtung zu einzelnen Schleifsegmenten aufgeteilt, die aber durch das eingelegte Rückenband miteinander flexibel verbunden bleiben.This method is used to produce a straight sanding shoe with a flexible band attached to its back. This shoe is now divided from the abrasive side in the transverse direction into individual grinding segments, which, however, remain flexibly connected to one another by the inserted back band.

Dieser segmentförmige Schleifkörper wird dann um einen zylindrischen Nabenkörper gelegt, wobei ein regelmäßiges Vieleck mit kleinen Seitenlängen entsteht, dessen Rotationskörper zum eigentlichen Schleifkörper wird. Festgehalten wird der segmentförmige Schleifkörper durch zwei Spanndeckel, die oben und unten auf den Nabenkörper aufgesetzt werden und gleichzeitig auch die einzelnen Segmente in ihrer Lage fixieren.This segment-shaped grinding wheel is then placed around a cylindrical hub body, creating a regular polygon with small side lengths, the rotating body of which becomes the actual grinding wheel. The segment-shaped grinding wheel is held in place by two clamping covers, which are placed on the top and bottom of the hub body and at the same time fix the individual segments in their position.

Im Folgenden ist ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die Zeichnungen näher beschrieben:An exemplary embodiment of the invention is described in more detail below with reference to the drawings:

Es zeigen:

  • Fig. 1 Mittelschnitt durch eine Profilschleifscheibe mit eingesetztem Segmentschleifkörper.
  • Fig. 2 Schnitt nach Linie II - II in Fig. 1.
  • Fig. 3 Spanndeckel 4 aus Fig. 1 von der Seite.
  • Fig. 4 Schleifschuh in noch gerader Form beim Aufteilen in Segmente.
  • Fig. 5 Aufbau eines einzelnen Schleifsegmentes.
  • Fig. 6 Werkstück perspektivisch.
Show it:
  • Fig. 1 middle section through a profile grinding wheel with inserted segment grinding body.
  • 2 section along line II - II in Fig. 1st
  • Fig. 3 clamping cover 4 of Fig. 1 from the side.
  • Fig. 4 sanding shoe in an even straight shape when dividing into segments.
  • Fig. 5 structure of a single grinding segment.
  • Fig. 6 workpiece in perspective.

Der Nabenkörper 1 der Profilschleifscheibe besitzt je nach Maschinentyp und Werkzeugspindel unterschiedlich austauschbare Zentrierbuchsen 2 und 3, um auf jeder Maschine einsetzbar zu sein. Auf der unteren Seite des Nabenkörpers ist ein Spanndeckel 4 mit angebracht, auf der Oberseite ist der zweite Spanndeckel 5 mit Hilfe einer Spannmutter 6 befestigt, diese zwei Spanndeckel fixieren den Segmentschleifkörper 7 um den zylindrischen Nabenkörper.The hub body 1 of the profile grinding wheel has, depending on the machine type and tool spindle, differently exchangeable centering bushes 2 and 3 so that they can be used on any machine. On the lower side of the hub body, a clamping cover 4 is also attached, on the upper side the second clamping cover 5 is fastened with the aid of a clamping nut 6, these two clamping covers fix the segment grinding body 7 around the cylindrical hub body.

In Fig. 2 sieht man die fächerartige Anordnung der einzelnen Schleifsegmente 7', diese Stellung der einzelnen Segmente wird durch Nuten 8, die in die Spanndeckel 4 und 5 eingearbeitet sind, vorgegeben, dargestellt in Fig. 3.2 shows the fan-like arrangement of the individual grinding segments 7 '; this position of the individual segments is predetermined by grooves 8 which are incorporated in the clamping covers 4 and 5, shown in FIG. 3.

In der Figur wird ein gerader Schleifschuh 9 dargestellt, wie er in einer nicht näher beschriebenen Schäumeinrichtung hergestellt wird. Dieser gerade Schuh wird durch Auftrennen in Einzelsegmente 7' insoweit unterteilt, daß dieselben durch das enthaltene Rückenband 10 flexibel miteinander verbunden bleiben.In the figure, a straight grinding shoe 9 is shown as it is produced in a foaming device not described in detail. This straight shoe is divided by dividing it into individual segments 7 'to the extent that they remain flexibly connected to one another by the back strap 10 contained therein.

Der Aufbau eines einzelnen Schleifsegmentes 7' ist in Fig. 5 dargestellt. Es besteht aus dem eigentlichen Kunststoffkörper 11 und dem auf der Profilseite fest verbundenen Schleifmittels 12 sowie einem flexiblen Rückenband 10. Das Schleifsegment 7' weist dabei das genaue Gegenprofil zum Profil 13 von Werkstück 14 auf (Fig. 6).The structure of a single grinding segment 7 'is shown in FIG. 5. It consists of the actual plastic body 11 and the abrasive 12 firmly connected on the profile side as well as a flexible back band 10. The grinding segment 7 'has the exact counter-profile to the profile 13 of the workpiece 14 (FIG. 6).

Claims (3)

1) Verfahren zur Herstellung einer Profilschleifscheibe gekennzeichnet durch die Merkmale: a) Ein in seiner Profilkontur geradlinig verlaufend hergestellter Schleifkörper (9) wird in Einzelsegmente (7') unterteilt, b) diese Einzelsegmente (7') werden um einen zylindrischen Nabenkörper (1) angeordnet und fixiert, sodaß ein Rotationsschleifkörper entsteht. 1) Process for producing a profile grinding wheel characterized by the features: a) A grinding wheel (9) produced with a straight profile is divided into individual segments (7 '), b) these individual segments (7 ') are arranged and fixed around a cylindrical hub body (1), so that a rotary grinding body is produced. 2) Profilschleifscheibe gemäß Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Schleifkörper (7) ein elastisches Rückenband (10) aufweist, das die Segmente (7') des Schleifkörpers (7) miteinander verbindet.2) Profile grinding wheel according to the method of claim 1, characterized in that the grinding body (7) has an elastic back band (10) which connects the segments (7 ') of the grinding body (7) with each other. 3) Profilschleifscheibe nach Anspruch 2, dadurch gekennzeichnet, daß der Schleifkörper (7) zwischen zwei Spanndeckeln (4 und 5) befestigbar ist, wobei die Schleifsegmente (7') in Nuten (8) der Spanndeckel (4 und 5) eingreifen.3) Profile grinding wheel according to claim 2, characterized in that the grinding body (7) between two clamping covers (4 and 5) can be fastened, the grinding segments (7 ') engaging in grooves (8) of the clamping cover (4 and 5).
EP85103452A 1984-04-11 1985-03-23 Structured abrasive wheel Withdrawn EP0158200A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413598 1984-04-11
DE19843413598 DE3413598A1 (en) 1984-04-11 1984-04-11 METHOD FOR PRODUCING A PROFILE GRINDING DISC

Publications (2)

Publication Number Publication Date
EP0158200A2 true EP0158200A2 (en) 1985-10-16
EP0158200A3 EP0158200A3 (en) 1988-08-03

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EP85103452A Withdrawn EP0158200A3 (en) 1984-04-11 1985-03-23 Structured abrasive wheel

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US (1) US4668248A (en)
EP (1) EP0158200A3 (en)
CA (1) CA1236978A (en)
DE (1) DE3413598A1 (en)
ES (1) ES295819Y (en)

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DE19845166A1 (en) * 1998-10-01 2000-04-13 Monti Werkzeuge Gmbh Rotational tool, e.g. for the removal of adhesive from surfaces, comprises an inner and an outer crown, where the latter consists of a toothed wheel with flexible teeth.

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US5155945A (en) * 1990-01-29 1992-10-20 Jason, Inc. Abrasive finishing elements, tools made from such elements, and methods of making such tools
US5131924A (en) * 1990-02-02 1992-07-21 Wiand Ronald C Abrasive sheet and method
US5203881A (en) * 1990-02-02 1993-04-20 Wiand Ronald C Abrasive sheet and method
DE4106005A1 (en) * 1991-02-26 1992-08-27 Winter & Sohn Ernst GRINDING OR CUTTING TOOL AND METHOD FOR THE PRODUCTION THEREOF
US5791330A (en) 1991-06-10 1998-08-11 Ultimate Abrasive Systems, L.L.C. Abrasive cutting tool
JP3009565B2 (en) * 1993-08-18 2000-02-14 洋 橋本 Grinding tool
US6478831B2 (en) 1995-06-07 2002-11-12 Ultimate Abrasive Systems, L.L.C. Abrasive surface and article and methods for making them
US6482244B2 (en) 1995-06-07 2002-11-19 Ultimate Abrasive Systems, L.L.C. Process for making an abrasive sintered product
US7587323B2 (en) * 2001-12-14 2009-09-08 At&T Intellectual Property I, L.P. System and method for developing tailored content
US7094140B2 (en) 2003-06-03 2006-08-22 Onfloor Technologies, L.L.C. Abrasive sanding surface
DE102004049235B3 (en) * 2004-10-09 2005-07-21 Monti-Werkzeuge Gmbh Rotary tool for machining workpieces has stabilizing webs of preset width and height between machining teeth in circumferential direction of outer crown
KR100691427B1 (en) 2006-06-14 2007-03-12 김문식 A cylinder type grinding brush product method
WO2009114630A2 (en) * 2008-03-11 2009-09-17 Voorwood Company Abrasive flap wheel with custom profiles
US9512624B2 (en) * 2013-09-20 2016-12-06 Mark Vernon Owens Wall trim finishing apparatus
US11185973B1 (en) * 2019-12-13 2021-11-30 Efficiency Product, LLC Two-sided casing chisel and method of use

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US1783727A (en) * 1927-05-27 1930-12-02 Norton Co Segmental grinding wheel
US1953983A (en) * 1928-02-07 1934-04-10 Carborundum Co Manufacture of rubber bonded abrasive articles
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US2682733A (en) * 1950-08-16 1954-07-06 Bay State Abrasive Products Co Flexible abrasive band
US2743559A (en) * 1953-04-10 1956-05-01 Bay State Abrasive Products Co Abrasive bands

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US750653A (en) * 1904-01-26 Abrasive wheel
US2115897A (en) * 1935-05-15 1938-05-03 Carborundum Co Abrasive article
DE3144077A1 (en) * 1981-11-06 1984-01-19 Reich Spezialmaschinen GmbH, 7440 Nürtingen METHOD FOR PRODUCING A GRINDING SHOE

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
US1783727A (en) * 1927-05-27 1930-12-02 Norton Co Segmental grinding wheel
US1953983A (en) * 1928-02-07 1934-04-10 Carborundum Co Manufacture of rubber bonded abrasive articles
US2001911A (en) * 1932-04-21 1935-05-21 Carborundum Co Abrasive articles
GB456985A (en) * 1935-05-18 1936-11-18 Carborundum Co Improvements in abrasive articles
US2170643A (en) * 1937-09-20 1939-08-22 Motor Products Corp Rubbing machine
FR881239A (en) * 1941-12-17 1943-04-19 New process for manufacturing and using abrasive compositions
US2682733A (en) * 1950-08-16 1954-07-06 Bay State Abrasive Products Co Flexible abrasive band
US2743559A (en) * 1953-04-10 1956-05-01 Bay State Abrasive Products Co Abrasive bands

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845166A1 (en) * 1998-10-01 2000-04-13 Monti Werkzeuge Gmbh Rotational tool, e.g. for the removal of adhesive from surfaces, comprises an inner and an outer crown, where the latter consists of a toothed wheel with flexible teeth.
US6309292B1 (en) 1998-10-01 2001-10-30 Monti-Werkzeuge Gmbh Rotary tool for surface treatment
DE19845166B4 (en) * 1998-10-01 2004-05-19 Monti-Werkzeuge Gmbh Rotary tool in the embodiment of a ring disc for surface processing

Also Published As

Publication number Publication date
CA1236978A (en) 1988-05-24
ES295819Y (en) 1987-12-16
EP0158200A3 (en) 1988-08-03
DE3413598A1 (en) 1985-10-24
US4668248A (en) 1987-05-26
ES295819U (en) 1987-06-16

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