EP2193882B1 - Disque à diamant incliné - Google Patents

Disque à diamant incliné Download PDF

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Publication number
EP2193882B1
EP2193882B1 EP09174844A EP09174844A EP2193882B1 EP 2193882 B1 EP2193882 B1 EP 2193882B1 EP 09174844 A EP09174844 A EP 09174844A EP 09174844 A EP09174844 A EP 09174844A EP 2193882 B1 EP2193882 B1 EP 2193882B1
Authority
EP
European Patent Office
Prior art keywords
cutting
segments
plane
edges
mean
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.)
Active
Application number
EP09174844A
Other languages
German (de)
English (en)
Other versions
EP2193882A2 (fr
EP2193882A3 (fr
Inventor
Michael Jung
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.)
Rhodius Schleifwerkzeuge GmbH and Co KG
Original Assignee
Rhodius Schleifwerkzeuge 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.)
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Publication date
Application filed by Rhodius Schleifwerkzeuge GmbH and Co KG filed Critical Rhodius Schleifwerkzeuge GmbH and Co KG
Publication of EP2193882A2 publication Critical patent/EP2193882A2/fr
Publication of EP2193882A3 publication Critical patent/EP2193882A3/fr
Application granted granted Critical
Publication of EP2193882B1 publication Critical patent/EP2193882B1/fr
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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
    • B24D5/12—Cut-off wheels
    • B24D5/123—Cut-off wheels having different cutting segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses

Definitions

  • the invention relates to a segmented cutting disc, in particular a diamond cutting disc, with a master blade and distributed over the circumference of the master blade cutting segments, wherein the master blade defines a central sectional plane and wherein between two cutting segments each have a segment gap.
  • the invention also relates to a method for producing such a cutting disk.
  • Such cutting discs are well known in great diversity. As diamond blades they have a particularly high hardness and cutting ability. The particular hardness is achieved primarily by applied to the cutting of the cutting segments industrial diamonds. Most diamond cutting discs have a metal base, the so-called master blade, and several cutting segments that carry the abrasive trim in the form of industrial diamonds. The more or less large segmentation mainly contributes to the cooling of the tool. Diamond cutting discs are used in particular for processing concrete and natural stone. For the processing of fibrous plastics they are so far only partially operational, since the segment gaps enforce when cutting such materials.
  • the DE 35 04 343 A1 relates to a saw blade, which can be used for the cutting of natural stones.
  • a master sheet and several distributed on the circumference of the stem sheet attached cutting segments is provided.
  • the width of the cutting segments is selected equal to 1 / n of the width of the stem plus the free cut, where n is equal to 2 or greater and the immediately adjacent cutting segments are arranged radially offset from each other by their width.
  • Previously known cutting discs have a defined by the strength of the master blade respectively the cutting segments cutting width, which is limited to the range of a few millimeters. For cutting wider notches, in particular more than 5 mm wide, the known cutting discs are hardly suitable, so that notches mostly with appropriate milling tools must be made. In relation to cutting discs, however, milling tools are expensive to buy and to operate.
  • the object of the present invention is now to propose a cutting wheel, which offers a high security against overheating and zusicking segment gaps with increased cutting width.
  • a very special advantage of these cutting discs is that they are comparatively less hot when cutting and hardly clogged.
  • the cut-off wheels can also be used to cut materials that were previously inaccessible to this kind of machining. So it has been found that, for example, even fiber materials such as plastic, otherwise a particularly problematic material for cutting discs, can now be easily cut. This displacement of the cut edges can be provided for any size of cutting discs. It can be used particularly advantageously for cutting wheels of the size between 100 mm and 300 mm, which have a corresponding number of cutting segments.
  • the offset is accomplished in a deflection of the cutting segments from the central cutting plane out, so that the edges respectively the cutting edges of the cutting segments are offset parallel to the central cutting plane by a certain amount of offset ,
  • the deflection in a bend of the cutter-carrying cutting segments out of the central cutting plane is particularly advantageous.
  • not only a few selected, but all cutting edges are offset from one another in that the cutting edges of respectively adjacent cutting segments lie in different cutting planes.
  • Such designed cutting discs offer the highest security against overheating and zusultender segment gaps.
  • a particularly advantageous design of the offset is when the cutting planes and thus the cutting edges of the cutting segments are arranged entangled.
  • the cutting planes alternately lie below and once above the middle cutting plane.
  • the cutting width of a segmented cutting disk can be virtually doubled, provided that a minimum overlap remains.
  • a further increase in the cutting width is possible because the cutting edges of the cutting segments in more than two cutting planes are arranged, for example step-shaped. With three stages could be achieved accordingly a nearly three times the cutting width, which does not necessarily have a tiered arrangement must be selected.
  • FIG. 1 a section of a segmented diamond cutting disc is shown, which has a central master blade 1 made of hardened steel and distributed over the circumference of the master blade 1 cutting segments 2.
  • the cutting segments 2 are diamond-set and applied to the periphery by means of a suitable welding process. In each case there is a segment gap 3 between the cutting segments 2, which extends into the master blade 1.
  • the median plane of the stem blade defines a central section plane ("0-line") 4, which in FIG. 2 is shown as a broken line.
  • the cutting edges 5 of the cutting segments with respect to the central cutting plane 4 are arranged offset.
  • the cutting edges 5 of the cutting segments are after FIG. 2a arranged in an interlaced manner, as their cutting edges 5 alternately right and left of the broken line and thus lie below and above the central cutting plane.
  • the cutting edges 6 of the cutting segments are after FIG. 2b arranged stepwise in three sectional planes, wherein the central cutting edge 6a lies in the central cutting plane 4 and the two other cutting edges on the left and right next to it.
  • the cutting edges of the cutting segments lie in different cutting planes and have a parallel offset with respect to the central cutting plane.
  • the cutting edges of the circumferentially distributed cutting segments with respect to the cutting width 7 are arranged without gaps. This means that the cutting planes lie directly at the "0-line" respectively have a small overlap.
  • the cutting edges of the cutting segments are bent out of the central cutting plane according to the method to be described below.
  • an embossing mold 8 which in the example FIG. 3 is circular and distributed over the circumference and has a rock-like upwardly projecting bending supports 9. Between the bending supports 9 remains a gap 10 of similar width.
  • a cutting disc is placed on the embossing mold 8 in such a way that every second cutting segment rests on one of the 9 bending supports. The other cutting segments protrude beyond the gaps in the not yet deformed cutting disc.
  • the applied cutting disc is subsequently subjected to a pressure from a punch 11 in the direction of the arrow A against the stamping mold 8, so that the cutting disk as a whole is pressed down onto the stamping mold 8, while the cutting segments 12 "resting on the bending supports 9 remain “above.
  • the other cutting segments 13 are pressed into the respective gap 10.
  • the one-sided curved cutting disc is taken out of the tool, inserted in reverse and pressurized accordingly.
  • This step can be avoided if the stamp is formed quasi as a counterpart to the embossing mold and has in the opposite direction raised bending restraints, which engage in the pressing process in the spaces between each two bending supports of the embossing mold.

Claims (8)

  1. Meule de tronçonnage segmentée, en particulier meule de tronçonnage à diamant, comprenant une lame de base (1) et des segments de coupe (2) répartis sur le pourtour de la lame de base (1), la lame de base (1) définissant un plan de coupe (4) moyen et à chaque fois un entre-segment (3) restant entre deux segments de coupe (2),
    des tranchants de segments de coupe (2) étant disposés de façon décalée par rapport au plan de coupe (4) moyen
    caractérisée en ce que les segments de coupe (2) sont pliés à partir du plan de coupe (4) moyen pour la création du déport des tranchants.
  2. Meule de tronçonnage selon la revendication 1,
    caractérisée en ce que les tranchants des segments de coupe (2) présentent un déport parallèle par rapport au plan de coupe (4) moyen.
  3. Meule de tronçonnage selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les tranchants de segments de coupe (2) respectivement voisins se situent dans des plans de coupe différents.
  4. Meule de tronçonnage selon la revendication 3,
    caractérisée en ce que les plans de coupe des segments de coupe (2) sont disposés de façon entrecroisée dans la mesure où leurs plans de coupe se situent alternativement au-dessous et au-dessus du plan de coupe (4) moyen.
  5. Meule de tronçonnage selon la revendication 3,
    caractérisée en ce que les tranchants des segments de coupe (2) sont disposés en particulier en forme de niveaux dans plus de deux plans de coupe.
  6. Meule de tronçonnage selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les tranchants des segments de coupe (2) répartis sur le pourtour sont disposés sans espacement par rapport à la largeur de coupe (7).
  7. Procédé pour fabriquer une meule de tronçonnage selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'une meule de tronçonnage, dont les segments de coupe (2) se situent dans le plan de coupe (4) moyen, est posée sur une matrice à estamper (8) de telle sorte que les segments de coupe (2) reposent sur des supports de flexion (8) de la matrice à estamper (8),
    en ce que la meule de tronçonnage est alimentée en pression par un poinçon (11) lors d'un processus de compression contre la matrice à estamper (8).
  8. Procédé selon la revendication 7,
    caractérisé en ce que le poinçon (11) présente des supports de flexion saillants dans le sens opposé, qui s'engagent lors de l'opération de compression entre respectivement deux supports de flexion de la matrice à estamper (8).
EP09174844A 2008-12-04 2009-11-03 Disque à diamant incliné Active EP2193882B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008060222A DE102008060222A1 (de) 2008-12-04 2008-12-04 Geschränkte Diamantscheibe

Publications (3)

Publication Number Publication Date
EP2193882A2 EP2193882A2 (fr) 2010-06-09
EP2193882A3 EP2193882A3 (fr) 2010-09-08
EP2193882B1 true EP2193882B1 (fr) 2011-09-28

Family

ID=42112090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09174844A Active EP2193882B1 (fr) 2008-12-04 2009-11-03 Disque à diamant incliné

Country Status (4)

Country Link
EP (1) EP2193882B1 (fr)
AT (1) ATE526114T1 (fr)
DE (1) DE102008060222A1 (fr)
ES (1) ES2372452T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012002545U1 (de) 2012-03-14 2012-07-12 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Schneidwerkzeug
DE102012106188A1 (de) 2012-07-10 2014-01-16 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Werkzeuganordnung zum Herstellen von Wandschlitzen
DE102013110009B3 (de) * 2013-09-12 2015-02-05 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Schneidwerkzeug

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT350950B (de) * 1976-11-09 1979-06-25 Swarovski Tyrolit Schleif Kreissaegeblatt
JPS5932267B2 (ja) * 1980-04-11 1984-08-07 株式会社ヤマビシ 切断刃
DE3504343A1 (de) * 1985-02-08 1986-08-14 Büdiam Diamantwerkzeuge W. und R. Büttner GmbH, 6345 Eschenburg Saegeblatt
JPS63300871A (ja) * 1987-05-30 1988-12-08 Sanwa Daiyamondo Kogyo Kk 超砥粒カッタ−の製造方法およびその製造装置
DE9218424U1 (de) * 1992-04-22 1994-03-03 Mummenhoff Heinrich Stammblatt für Kreissägeblätter, Trenn- und Schleifscheiben u.dgl.
DE9310351U1 (de) * 1993-07-13 1994-01-13 Dietel Karlheinz Segmenttrennschleifscheibe, Stammblatt und Segment
JP2002254321A (ja) * 2001-02-28 2002-09-10 Noritake Co Ltd セグメント型研削砥石
KR100680850B1 (ko) * 2005-04-20 2007-02-09 이화다이아몬드공업 주식회사 다이아몬드 공구용 절삭팁 및 다이아몬드 공구

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012002545U1 (de) 2012-03-14 2012-07-12 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Schneidwerkzeug
DE102012106188A1 (de) 2012-07-10 2014-01-16 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Werkzeuganordnung zum Herstellen von Wandschlitzen
DE102012106188B4 (de) * 2012-07-10 2021-05-20 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Verfahren zum Demontieren und Verfahren zum Montieren eines Schneidwerkzeugs einer Werkzeuganordnung zum Herstellen von Wandschlitzen
DE102013110009B3 (de) * 2013-09-12 2015-02-05 Rhodius Schleifwerkzeuge Gmbh & Co. Kg Schneidwerkzeug

Also Published As

Publication number Publication date
ATE526114T1 (de) 2011-10-15
DE102008060222A1 (de) 2010-06-10
EP2193882A2 (fr) 2010-06-09
EP2193882A3 (fr) 2010-09-08
ES2372452T3 (es) 2012-01-19

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