EP0909612B1 - Disque abrasif - Google Patents

Disque abrasif Download PDF

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Publication number
EP0909612B1
EP0909612B1 EP98117574A EP98117574A EP0909612B1 EP 0909612 B1 EP0909612 B1 EP 0909612B1 EP 98117574 A EP98117574 A EP 98117574A EP 98117574 A EP98117574 A EP 98117574A EP 0909612 B1 EP0909612 B1 EP 0909612B1
Authority
EP
European Patent Office
Prior art keywords
wheel according
abrasive
abrasive wheel
reinforcement
annular flange
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
EP98117574A
Other languages
German (de)
English (en)
Other versions
EP0909612A2 (fr
EP0909612A3 (fr
Inventor
Claus Genau
Bernd Dr. Stuckenholz
Theodor Schneider
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
Priority claimed from DE19828357A external-priority patent/DE19828357A1/de
Application filed by August Rueggeberg GmbH and Co KG filed Critical August Rueggeberg GmbH and Co KG
Publication of EP0909612A2 publication Critical patent/EP0909612A2/fr
Publication of EP0909612A3 publication Critical patent/EP0909612A3/fr
Application granted granted Critical
Publication of EP0909612B1 publication Critical patent/EP0909612B1/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
    • 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
    • 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
    • B24D5/12—Cut-off wheels

Definitions

  • the invention relates to a grinding wheel according to the preamble of Claim 1.
  • the reinforcement threads run essentially according to the actual Stress on the rotating slip ring.
  • the greatest main tension of a rotating slip ring runs in the tangential direction.
  • the tangential stress, i.e. H. the tangential force curve has in the range the middle opening their highest value, which decreases steadily towards the outside.
  • the adhesive layer in the area of ring cylindrical edge of the support plate only pure tangential forces from Transfer the carrier plate to the slip ring.
  • This known configuration A slip ring has the disadvantage that the reinforcement layers described are quite expensive.
  • the invention has for its object to provide a slip ring, which can be equipped with little complex reinforcement layers and can withstand high loads.
  • the essence of the invention is that the reinforcement layers be arranged radially overlapping with the support plate, and that at least a reinforcement layer in the overlap area glued to the support plate becomes.
  • a grinding wheel which is a Cutting-off wheel, in particular a manual cutting-off wheel, So a cutting wheel for use with hand-held Grinding machines. It has a slip ring 1 and a support plate 2 on.
  • the slip ring 1 has one in the area of its end faces 3, 3 ' Reinforcement layer 4, 4 '. Is located between the reinforcement layers 4, 4 ' a layer of abrasive 5, the abrasive grain 6, binder 7 and fillers 8.
  • Aluminum oxide is preferred as the abrasive grain 6, Silicon carbide, zirconium corundum, solgel grain and mixtures thereof into consideration. Pure or modified synthetic resins serve as binders 7. Pyrite, cryolite and potassium cryolite are used as filler 8.
  • the Abrasive grain 6 has a nominal grain size in the range from 315 to 1000 ⁇ m.
  • the support plate 2 consists of relatively thin sheet of steel, possibly stainless Steel, aluminum or brass.
  • the support plate 2 has an annular outer region 9 and an inner one Hub area 10, which is concentric in the same way as the slip ring 1 are arranged to the central longitudinal axis 11 of the grinding wheel.
  • the Outside 9 of the support plate 2 is designed so that it is the desired Stiffness maintains. In the illustrated embodiment, it is with or several concentrically arranged to the axis 11, as reinforcing ribs 12 serving grooves (beads), which in cross section approximately the shape of sinusoidal waves, as from the cross-sectional representations evident.
  • the hub area 10 of the support plate 2 has a concentric to the axis 11 trained hub opening 13. He can continue with - in the Top view, for example, keyhole-shaped reinforcement profiles 14 be provided. Furthermore, the hub area 10 in Direction of the axis 11 pressed out of the plane of the outer region 9 be or lie on this level.
  • the reinforcement layers 4, 4 ' are made from a fabric, namely a glass fiber fabric that from vertical mutually extending warp threads 15 and weft threads 16 are formed.
  • the outer region has 9 of the support plate 2 at the transition to the slip ring 1 an outer annular groove profile 17, which extends radially to the axis 11 Ring flange 18, a ring flange 18 with the adjacent one Reinforcing rib 12 connecting, approximately ring-cylindrical to the axis 11 extending connecting leg 19 and a radially outer free Has leg 20, which is also approximately cylindrical to the axis 11 runs.
  • a reinforcement layer 4 is on the radially extending to the axis 11 annular outer surface 21 of the groove profile 17 by means of a Adhesive layer 22 attached. This reinforcement layer 4 overlaps radially So with the support plate 2 by about the radial extent a of Ring flange 18 corresponding dimension.
  • the interior 23 of the grooved profile 17 is also made of abrasive grain 6, binder 7 and filler 8, existing soap 5 filled; the reinforcement layer 4 'is in this case by means of the binder 7 with the Abrasive 5 glued, which in turn also by means of the binder 7th is glued to the inner surface of the groove profile 17.
  • the interior 23 of the Alternatively, groove profile 17 can naturally also be filled with an adhesive be, by means of which the reinforcement layer 4 'is attached to the support plate 2 is done. Otherwise, the radially outer surface 25 of the free Leg 20 of the groove profile 17 also with an adhesive layer 26 provided, on which in turn the abrasive 5 adheres.
  • the reinforcement layer too 4 'thus overlaps with the support plate 2. As can be seen in FIG. 2 the two reinforcement layers 4, 4 'have the same inner diameter, d. H. the reinforcement layers 4, 4 'are identical.
  • Both ring flanges 18a and 28 are on their outer surfaces 21a and 29 provided with an adhesive layer 22a and 30, respectively the inner region of the reinforcement layers 4a, 4'a is fastened.
  • the reinforcement layer 4 is on the outer edge of the support plate 2nd only an annular flange 18b extending radially to the axis 11 is formed, on the outer surface 21b the reinforcement layer 4b is attached.
  • the Reinforcement layer 4'b extends to the outer surface 31 of the next one Reinforcing rib 12 and is there by means of an adhesive layer 30b attached.
  • the space 32 between the annular flange 18b, the Connecting leg 19b between the annular flange 18b and the adjacent one Reinforcing rib 12 and the reinforcement layer 4'b is also with filled the abrasive 5.
  • the connecting leg 19c is similar to the connecting leg 19 configured in the embodiment of FIG. 2, d. H. it runs approximately cylindrical to axis 11.
  • the reinforcement layer 4'c points the same inner diameter as the reinforcement layer 4c extends thus - deviating from the embodiment according to FIG. 4 - not up to Outer surface 31 of the next adjacent reinforcing rib 12.
  • the space 32c between the ring flange 18c and the reinforcement layers 4c and 4'c is also filled with abrasive 5.
  • the abrasive 5 is not included connected to the connecting leg 19c.
  • annular inner surface 33 and the armoring layer 4'c the cylindrical annular end face 34 of the ring flange 18c are also covered with an adhesive layer 35 or 36, via which a firm connection made between the abrasive 5 and the ring flange 18c becomes. Since the cylindrical end face 34 is regularly very small, since the sheet forming the support plate 2 is generally less than the thickness has than 1.0 mm, the adhesive layer 36 comes no significant Importance to; it can therefore also be omitted.

Landscapes

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

Claims (11)

  1. Disque abrasif, comportant :
    un plateau porteur (2) annulaire avec un axe longitudinal médian (11),
    un anneau abrasif (1) fixé sur le plateau porteur (2) coaxialement à l'axe longitudinal médian (11),
    lequel est pourvu sur ses faces frontales (3, 3') de couches d'armature (4, 4' ; 4a, 4'a ; 4b, 4'b ; 4c, 4'c), et
    qui présente entre les couches d'armature (4, 4' ; 4a, 4'a ; 4b, 4'b ; 4c, 4'c) une couche de produit abrasif (5) reliée à celles-ci, et
    au moins une bride annulaire (18 ; 18a; 18b ; 18c) réalisée dans la région du plateau porteur (2) radialement extérieure à l'axe longitudinal médian (11) et sur ledit plateau porteur, avec une surface extérieure (21 ; 21a ; 21b ; 21c) s'étendant radialement par rapport à l'axe longitudinal médian (11), caractérisé en ce qu'une couche d'armature (4 ; 4a ; 4b ; 4c) est fixée en chevauchant radialement la surface extérieure (21 ; 21a ; 21b ; 21c) au moyen d'une couche de colle (22 ; 22a ; 22b ; 22c).
  2. Disque abrasif selon la revendication 1,
    dans lequel les couches d'armature (4, 4' ; 4a, 4'a ; 4b, 4'b ; 4c, 4'c) sont réalisées en tissu.
  3. Disque abrasif selon la revendication 2,
    dans lequel les couches d'armature (4, 4' ; 4a, 4'a ; 4b, 4'b ; 4c, 4'c) sont réalisées en tissu de verre.
  4. Disque abrasif selon l'une des revendications 1 à 3,
    dans lequel le plateau porteur (2) est pourvu de deux brides annulaires (18a, 28) sur lesquelles une couche d'armature respective (4a, 4'a) est fixée au moyen d'une couche de colle respective (22a, 30).
  5. Disque abrasif selon l'une des revendications 1 à 3,
    dans lequel ladite au moins une bride annulaire (18 ; 18b ; 18c) délimite, conjointement avec la couche d'armature (4' ; 4'b ; 4'c) qui ne lui est pas fixée, une chambre (23 ; 32 ; 32c) qui est remplie de produit abrasif (5).
  6. Disque abrasif selon l'une des revendications 1 à 3 et 5,
    dans lequel sur ladite au moins une bride annulaire (18) est réalisée une branche libre (20) qui s'étend au moins partiellement en direction de la couche d'armature (4') qui n'est pas fixée sur ladite au moins une bride annulaire (18).
  7. Disque abrasif selon la revendication 6,
    dans lequel la branche libre (20) est pourvue sur sa surface (23) radialement extérieure à l'axe longitudinal médian (11) une couche de colle (26) au moyen de lequel le produit abrasif (5) est relié au plateau porteur (2).
  8. Disque abrasif selon l'une quelconque des revendications 1 à 7,
    dans lequel ladite au moins une bride annulaire (18 ; 18a ; 18b ; 18c) est reliée au plateau porteur (2) au moyen d'une branche de liaison (19 ; 19a ; 19b ; 19c) s'étendant au moins en partie en direction de l'axe longitudinal médian (11).
  9. Disque abrasif selon l'une des revendications 1 à 8,
    dans lequel le plateau porteur (2) est pourvu de nervures de renforcement (12).
  10. Disque abrasif selon l'une des revendications 1 à 9,
    dans lequel la bride annulaire (18c) est décalée en retrait de quelques dixièmes de mm par rapport à un plan défini par une face frontale (3).
  11. Disque abrasif selon l'une des revendications 1 à 10,
    dans lequel la bride annulaire (18 ; 18c) est pourvue d'une couche de colle (26 ; 35, 36) sur au moins une surface (25 ; 33, 34) tournée vers le produit abrasif (5).
EP98117574A 1997-10-16 1998-09-16 Disque abrasif Expired - Lifetime EP0909612B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19745709 1997-10-16
DE19745709 1997-10-16
DE19828357 1998-06-25
DE19828357A DE19828357A1 (de) 1997-10-16 1998-06-25 Schleifscheibe

Publications (3)

Publication Number Publication Date
EP0909612A2 EP0909612A2 (fr) 1999-04-21
EP0909612A3 EP0909612A3 (fr) 2001-01-31
EP0909612B1 true EP0909612B1 (fr) 2002-06-19

Family

ID=26040879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117574A Expired - Lifetime EP0909612B1 (fr) 1997-10-16 1998-09-16 Disque abrasif

Country Status (6)

Country Link
US (1) US6071185A (fr)
EP (1) EP0909612B1 (fr)
JP (1) JPH11188632A (fr)
AT (1) ATE219410T1 (fr)
CA (1) CA2249730A1 (fr)
ES (1) ES2178800T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409469B (de) * 1998-11-10 2002-08-26 Swarovski Tyrolit Schleif Spanneinrichtung für schleifscheiben
DE10106979A1 (de) * 2001-02-15 2002-09-05 Bosch Gmbh Robert Einsatzwerkzeug mit einer rotierend antreibbaren, scheibenförmigen Nabe
US6334481B1 (en) * 2001-05-04 2002-01-01 Asia Vital Components Co., Ltd. Retainer for a cooling device
KR20040102965A (ko) * 2003-05-30 2004-12-08 이화다이아몬드공업 주식회사 웨이브형 소우 블레이드
JP5339178B2 (ja) * 2008-03-14 2013-11-13 日立工機株式会社 カッター
EP2286959B1 (fr) * 2009-08-22 2014-05-07 August Rüggeberg GmbH & Co. KG Outil d'ébauchage et de ponçage
AT511244B1 (de) * 2011-03-30 2013-01-15 Swarovski Tyrolit Schleif Trennschleifscheibe
CN104684687B (zh) * 2012-08-28 2017-06-30 圣戈班磨料磨具有限公司 大直径切削工具
EP3421178A1 (fr) 2017-06-26 2019-01-02 Dronco GmbH Procédé de fabrication d'un élément abrasif, en particulier un disque abrasif rotatif et élément abrasif, en particulier un disque abrasif rotatif

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624660A (en) * 1949-09-29 1953-01-06 Norton Co Grinding wheel
US2997820A (en) * 1959-12-14 1961-08-29 American Emery Wheel Works Organic bond abrasive wheel
ES140683Y (es) * 1968-07-20 1969-07-16 Telas Disco abrasivo.
US3867795A (en) * 1973-10-16 1975-02-25 Norton Co Composite resinoid bonded abrasive wheels
DE2719741A1 (de) * 1977-05-03 1978-11-09 Geb Riemer Elfriede Peltz Schleifscheibe
DE3545308A1 (de) * 1985-12-20 1987-06-25 Feldmuehle Ag Schleifscheibe mit daempfung
ATE174544T1 (de) * 1993-02-15 1999-01-15 Rueggeberg August Gmbh & Co Schleifscheibe für handgeführte schleifmaschinen, insbesondere trenn-schleifscheibe
US5431596A (en) * 1993-04-28 1995-07-11 Akita; Hiroshi Grinding wheel and a method for manufacturing the same
AT1003U1 (de) * 1995-10-18 1996-09-25 Rappold International Sales Ag Verbundschleifscheibe

Also Published As

Publication number Publication date
EP0909612A2 (fr) 1999-04-21
EP0909612A3 (fr) 2001-01-31
ES2178800T3 (es) 2003-01-01
JPH11188632A (ja) 1999-07-13
US6071185A (en) 2000-06-06
CA2249730A1 (fr) 1999-04-16
ATE219410T1 (de) 2002-07-15

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