EP0981421B1 - Meule de rectification pour lame scie circulaire metaux - Google Patents

Meule de rectification pour lame scie circulaire metaux Download PDF

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Publication number
EP0981421B1
EP0981421B1 EP98914783A EP98914783A EP0981421B1 EP 0981421 B1 EP0981421 B1 EP 0981421B1 EP 98914783 A EP98914783 A EP 98914783A EP 98914783 A EP98914783 A EP 98914783A EP 0981421 B1 EP0981421 B1 EP 0981421B1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
wheel according
tool
grinding
mounting bore
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
EP98914783A
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German (de)
English (en)
Other versions
EP0981421A1 (fr
Inventor
Richard SCHÜLLER
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 Heinr Schmidt GmbH and Co KG Maschinenfabrik
Original Assignee
August Heinr Schmidt GmbH and Co KG Maschinenfabrik
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 DE19719971A external-priority patent/DE19719971A1/de
Application filed by August Heinr Schmidt GmbH and Co KG Maschinenfabrik filed Critical August Heinr Schmidt GmbH and Co KG Maschinenfabrik
Publication of EP0981421A1 publication Critical patent/EP0981421A1/fr
Application granted granted Critical
Publication of EP0981421B1 publication Critical patent/EP0981421B1/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

Definitions

  • the invention relates to a grinding wheel for processing of metal circular saw blades with higher speeds, such grinding wheels hard materials, such as e.g. Containing diamond or cubic boron nitride Have machining areas with which high cutting performance can be achieved.
  • the grinding wheels according to the invention different from those previously used Grinding wheels in particular in that the base body the grinding wheel at least one side in the radial outer area of the tool mounting hole, the conventional or also, as this from DE 296 08 590 is known, can be formed, a contour is available is in the at least one centering element can intervene positively. While grinding the grinding wheel and at least one centering element on the tool spindle of the grinding machine held non-positively.
  • a commonly used screw connection Find application but there is also Possibility of hydraulically, pneumatically operated To use piston cylinder units or a spring force, the latter especially for one automatic operation.
  • a flange-like extension over the normal thickness of the base body of the Grinding wheel protrudes, is formed on the at least one radially outer contact surface for the / the Centering element (s) is present on which the / Centering element (s) can support. Conveniently is / are the contact surface (s) opposite the Axis of rotation inclined.
  • the contour can also be circular Be web, with openings if necessary be symmetrically divided into individual segments can.
  • the centering element (s) is supported each on the radially outer surface of the web from.
  • contours can be improved in that at least one-sided beveled contact surfaces are on which the corresponding contact surfaces Support the centering element (s).
  • Bevels have the advantage of being larger Investment areas are available and secondly becomes the insertion or fitting of the centering elements when attaching the grinding wheel to the grinding machine relieved and adjustment errors if necessary during the insertion can be compensated and consequently the wear on the centering elements and the Base body of the grinding wheel can be reduced.
  • the depressions or openings can be more advantageous Way to be improved if this are flared outwards, to like this already for the beveled training certain surface areas of the grooves, flanges or Webs, the case is, especially when threading the Centering elements can be improved.
  • the second Centering element can be a separate component be that non-positively towards the flange the grinding machine drive spindle can.
  • the centering element be part of the piston or of the cylinder, depending on which of the two Elements for fastening the grinding wheel the drive spindle is used.
  • Contours are in shape below the axis of rotation A. of grooves 3 and 3 'shown, again on the right a groove 3 from the central axis B of the grinding wheel 1 formed with a rectangular or square cross section and is on the other side of the central axis B shown groove 3 'at least one beveled Contact surface for a not shown Centering element should have.
  • FIG. 1 further shows various options training, processing areas 5 and 5 ' a grinding wheel according to the invention, the hard materials contain cubic boron nitride or diamond.
  • FIG. 2 shows another example of the invention Grinding wheel 1 shown. It is the contour 7 in the radial direction of the tool holder bore 4 outer area a flange-like extension whose in turn radially outer edge contact surfaces 8th for one or two centering elements 6 (not shown) available. the contact surfaces 8 are opposite the axis of rotation A inclined at an angle of 15 °.
  • the tool mounting hole 4 is partially in designed to expand conically, where the cone forms an angle of 90 °.
  • the cone is advantageously dimensioned such that he up to at least the central axis B of the grinding wheel base ranges or extends beyond and the remaining area of the tool holder bore 4 is cylindrical is trained.
  • the tool mounting hole 4 can also be designed in this way be (not shown) that the conical Part enclosed by two cylindrical parts , which is due to the larger diameter of the conical Part adjacent cylindrical part a larger one Internal diameter than the opposite one has cylindrical part.
  • the centering element 6 can then be constructed accordingly and on the cone and the end face adjacent to the cone cylindrical part of the tool mounting hole 4 issue.
  • plane support surfaces 9 are radial to Tool mounting hole 4 outer area available, on which the centering element (s) (6) or a Clamping element 11 in the fixed position of the grinding wheel 1 come to the plant.
  • the cone can also in a form not shown formed on both sides of the grinding wheel 1 be, in which case two on both sides accordingly trained centering elements 6 are used can.
  • FIG. 3 the example according to FIG. 2 is more fixed Position on a drive spindle Grinding machine for circular saw blades shown.
  • FIG. 3 clearly shows how the grinding wheel 1 with its conical inner diameter the tool mounting hole 4, the support surface 9 and the contact surface 8 of the flange-like Contour 7 on the centering element 6 and aligned is held. Because of the large surface areas safe guidance even at relatively high speeds given. There are also relatively high frictional forces available that reduce the tension, the one with the clamping screw 10 or another Clamping element must be applied, enable what to extend the lifespan of at least the Centering elements 6 leads.
  • the centrifugal forces acting at high speeds are over the on the contact surface 8 of the contour 7 with the corresponding training of the centering element 6 its outer edge caught and largely compensated.
  • the centering element 6 is between its outer edge and the flared Outside diameter, i.e. in the area of on this side the grinding wheel 9 existing support surface 9, the opposite the support surface on the other side 9 is smaller, moved in. Thereby lies the inner outer edge of the centering element 6 on the Contact surface 8 and the retracted area on the Support surface 9 on.

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

Claims (17)

  1. Meule d'affûtage pour l'usinage de lames de scie circulaire à métaux, qui comporte, au moins dans sa partie extérieure du point de vue radial et à distance d'un perçage de réception d'outil, une zone d'usinage pourvue d'un revêtement abrasif, caractérisée en ce
    que le corps de base de la meule (1) comporte au moins sur une face un profil supplémentaire (2,2',3,3',7), à une certaine distance radiale du perçage (4) de réception de l'outil, pour l'engrènement par formes complémentaires d'un élément de centrage (6), dont le profil extérieur et adapté au profil intérieur du perçage (4) de réception de l'outil.
  2. Meule d'affûtage selon la revendication 1, caractérisée en ce que le perçage (4) de réception de l'outil est agencé de telle manière que son diamètre intérieur est accru au moins d'un côté.
  3. Meule d'affûtage selon la revendication 1 ou 2, caractérisée en ce que le profil (2,2',3,3',7) est formé sur les deux faces de la meule (1).
  4. Meule d'affûtage selon l'une des revendications 1 à 3, caractérisée en ce que le profil (7) est un élargissement en forme de bride qui s'étend sur l'épaisseur du corps de base de la meule et qui possède au moins une surface d'application (8) extérieure du point de vue radial, pour un élément de centrage (6).
  5. Meule d'affûtage selon l'une des revendications 1 à 4, caractérisée en ce que la ou les surfaces d'application (8) est/sont inclinée(s) par rapport à l'axe de rotation (A) de la meule (1).
  6. Meule d'affûtage selon l'une des revendications 1 à 5, caractérisée en ce que des surfaces d'appui planes (9) orientées perpendiculairement à l'axe de rotation (A) sont prévues entre la/les surface(s) (8) et le perçage (4) de réception de l'outil.
  7. Meule d'affûtage selon l'une des revendications 1, 2, 3 ou 5, caractérisée en ce que le profil est une rainure (3,3') agencée avec une forme circulaire dans le corps de base de la meule.
  8. Meule d'affûtage selon l'une des revendications 1, 2, 3, 5, caractérisée en ce que le profil est une barrette circonférentielle de forme circulaire (2,2').
  9. Meule d'affûtage selon la revendication 7 ou 8, caractérisée en ce que les surfaces d'application, extérieures du point de vue radial, de la barrette (2') et les surfaces d'application, intérieures du point de vue radial, de la rainure (3') sont inclinées par rapport à l'axe de rotation (A).
  10. Meule d'affûtage selon l'une des revendications 1 à 9, caractérisée en ce que l'élargissement en forme de bride (7), la rainure (3') ou la barrette (2') possède au moins d'un côté une surface d'application bombée, contre laquelle prennent appui le ou les éléments de centrage (6).
  11. Meule d'affûtage selon la revendication 1, 2 ou 3, caractérisée en ce qu'au moins deux passages ou renfoncements, qui sont opposés symétriquement sur un axe dans la direction radiale, sont formés dans le corps de base de la meule (1).
  12. Meule d'affûtage selon la revendication 11, caractérisée en ce que les renfoncements ou les passages s'élargissent vers l'extérieur avec une forme conique.
  13. Meule d'affûtage selon l'une des revendications 1 à 12, caractérisée en ce que le diamètre du perçage (4) de réception de l'outil se rétrécit avec une forme conique à partir d'une face de la meule (1) et que l'autre partie du perçage (4) de réception de l'outil est agencée avec une forme cylindrique.
  14. Meule d'affûtage selon la revendication 13, caractérisée en ce que la partie rétrécie avec une forme conique du perçage (4) de réception de l'outil est formée au moins jusqu'au centre du corps de base de la meule.
  15. Meule d'affûtage selon l'une des revendications 1 à 14, caractérisée en ce que la partie, qui se rétrécit avec une forme conique, du perçage (4) de réception de l'outil est entourée des deux côtés par des parties cylindriques ayant des diamètres intérieurs différents.
  16. Meule d'affûtage selon l'une des revendications 1 à 15, caractérisée en ce que la partie conique du perçage (4) de réception de l'outil et la partie conique de l'élément de centrage (6) sont réalisées avec un angle de 90°.
  17. Meule d'affûtage selon l'une des revendications 1 à 16, caractérisée en ce que les surfaces d'application (8) sont inclinées sous un angle de 15° par rapport à l'axe de rotation (A) de la meule (1).
EP98914783A 1997-05-13 1998-02-17 Meule de rectification pour lame scie circulaire metaux Expired - Lifetime EP0981421B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19719971 1997-05-13
DE19719971A DE19719971A1 (de) 1997-05-13 1997-05-13 Schleifscheibe zur Bearbeitung von Metallkreissägeblättern
DE29715683U 1997-09-01
DE29715683U DE29715683U1 (de) 1997-05-13 1997-09-01 Schleifscheibe zur Bearbeitung von Metallkreissägeblättern
PCT/DE1998/000484 WO1998051447A1 (fr) 1997-05-13 1998-02-17 Meule de rectification pour lame scie circulaire metaux

Publications (2)

Publication Number Publication Date
EP0981421A1 EP0981421A1 (fr) 2000-03-01
EP0981421B1 true EP0981421B1 (fr) 2000-10-18

Family

ID=26036510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98914783A Expired - Lifetime EP0981421B1 (fr) 1997-05-13 1998-02-17 Meule de rectification pour lame scie circulaire metaux

Country Status (5)

Country Link
US (1) US6206766B1 (fr)
EP (1) EP0981421B1 (fr)
AT (1) ATE197008T1 (fr)
ES (1) ES2142298T3 (fr)
WO (1) WO1998051447A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006340A1 (fr) * 1998-07-31 2000-02-10 Norton Company Outil de dressage rotatif contenant une couche de diamant brasee
JP2005313310A (ja) * 2004-03-31 2005-11-10 Mitsubishi Materials Corp Ｃｍｐコンディショナ
DE202006013890U1 (de) * 2006-09-01 2006-11-16 C. & E. Fein Gmbh Werkzeugbefestigung
DE102007039367B4 (de) * 2006-09-01 2019-12-19 C. & E. Fein Gmbh Werkzeugbefestigung
JP5954119B2 (ja) * 2012-10-31 2016-07-20 日本精工株式会社 ねじ研削盤における砥石の芯出し方法、及び、芯出し用の測定装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29608590U1 (de) * 1996-05-14 1996-07-11 August Heinr. Schmidt GmbH & Co. KG Maschinenfabrik, 70469 Stuttgart Schleifscheibe für die Bearbeitung von Metallkreissägeblättern

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB438854A (en) * 1935-05-09 1935-11-25 Booth Walters Improvements in or relating to grinding or abrading machines
BE416961A (fr) * 1935-08-12
US3566547A (en) * 1967-11-28 1971-03-02 Gray Tech Ind Inc Grinding wheel spindle assembly
US3571980A (en) * 1969-06-03 1971-03-23 Cincinnati Milacron Inc Abrasive structures having a compression-producing reinforcing ring
DE2044046A1 (de) * 1970-09-05 1972-03-16 Fortuna Werke Maschf Ag Sicherungsvorrichtung für eine Schleifspindel
US3800483A (en) * 1971-01-22 1974-04-02 W Sherman Method of making grinding wheel mounts
DE2405048A1 (de) * 1974-02-02 1975-09-25 Salje Ernst Aufnahme- und spannvorrichtung fuer schleifscheiben
US4326361A (en) * 1980-06-27 1982-04-27 Union Carbide Corporation Adjustable hub mount for circular saw blade
JPS57171601U (fr) * 1981-04-24 1982-10-28
US4455788A (en) * 1981-06-17 1984-06-26 Minnesota Mining And Manufacturing Company Abrasive wheel and drive spindle combination with improved attaching means
US4729193A (en) * 1986-12-22 1988-03-08 Eugene Gant Cutting disk mounting assembly
JP3244718B2 (ja) * 1991-05-22 2002-01-07 株式会社マキタ 回転工具における回転刃具の固止装置
DE4129090A1 (de) * 1991-09-02 1993-03-04 Rueggeberg August Fa Schleifscheibe
US5895317A (en) * 1996-12-18 1999-04-20 Norton Company Wheel hub for longer wheel life

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29608590U1 (de) * 1996-05-14 1996-07-11 August Heinr. Schmidt GmbH & Co. KG Maschinenfabrik, 70469 Stuttgart Schleifscheibe für die Bearbeitung von Metallkreissägeblättern

Also Published As

Publication number Publication date
WO1998051447A1 (fr) 1998-11-19
US6206766B1 (en) 2001-03-27
ES2142298T3 (es) 2001-02-01
EP0981421A1 (fr) 2000-03-01
ES2142298T1 (es) 2000-04-16
ATE197008T1 (de) 2000-11-15

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