EP1312446B1 - Rouleau de dressage diamanté et procédé de fabrication - Google Patents

Rouleau de dressage diamanté et procédé de fabrication Download PDF

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Publication number
EP1312446B1
EP1312446B1 EP02010000A EP02010000A EP1312446B1 EP 1312446 B1 EP1312446 B1 EP 1312446B1 EP 02010000 A EP02010000 A EP 02010000A EP 02010000 A EP02010000 A EP 02010000A EP 1312446 B1 EP1312446 B1 EP 1312446B1
Authority
EP
European Patent Office
Prior art keywords
dressing roller
form dressing
diamond
layers
layer
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
EP02010000A
Other languages
German (de)
English (en)
Other versions
EP1312446A3 (fr
EP1312446A2 (fr
Inventor
Hans-Robert Dr. Meyer
Michael Smarsly
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.)
Saint Gobain Diamantwerkzeuge GmbH and Co KG
Original Assignee
Saint Gobain Diamantwerkzeuge 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 Saint Gobain Diamantwerkzeuge GmbH and Co KG filed Critical Saint Gobain Diamantwerkzeuge GmbH and Co KG
Publication of EP1312446A2 publication Critical patent/EP1312446A2/fr
Publication of EP1312446A3 publication Critical patent/EP1312446A3/fr
Application granted granted Critical
Publication of EP1312446B1 publication Critical patent/EP1312446B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12—Dressing tools; Holders therefor
    • B24B53/14—Dressing tools equipped with rotary rollers or cutters; Holders therefor
    • 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

Definitions

  • the invention relates to a diamond Formabrichtrolle for dressing diamond grinding wheels in ceramic, bakelitischer or metallic bond according to the preamble of claim 1.
  • An example of such a diamond form dressing roller is from the JP 04 343674 A known.
  • a profile dressing roller has the workpiece contour on its peripheral surface. This is in contrast to a diamond form dressing roll, which is controlled with a CNC control of the grinding machine according to the required profile.
  • CNC controlled dressing of conventional Grinding wheels with abrasives made of corundum or silicon carbide have proven themselves to diamond form dressing rollers, which carry a layer of diamonds on their circumference.
  • This diamond layer may consist of a diamond grain in a bond of electrodeposited nickel or of polycrystalline diamond aggregates, which are held on the surface of the Formabrichtrolle by a galvanically or chemically deposited nickel precipitate or by a sintered metal deposited in a sintering process.
  • Dressing consists of profiling and sharpening the grinding wheel.
  • the profiling is required to return the profile of the grinding wheel to the desired shape and tolerance.
  • the sharpening takes place to further restore the grinding ability of the grinding wheel, i. to bring the grinding forces, the heat development and the surface roughness created on the workpiece back into the required limits.
  • a dressing tool has been known in which, to obtain a uniform distribution and constant density of abrasive grains of an annular body in its planar surface, holes are drilled according to a predetermined pattern of the same dimensions in which ultra-hard abrasive grains are arranged. Two or more layers of such metal bodies are sintered and cured, the layers being metallically bonded together.
  • the invention has for its object to provide a Formabrichtrolle, with the profiling and sharpening of diamond grinding wheels in a single gear possible and the wear of Formabrichtrolle is so low that even long profile trains can be dressed on a diamond grinding wheel with high profile accuracy.
  • the coating also has at least two layers of diamond grains of narrow size.
  • the diamond grains are arranged approximately in a plane perpendicular to the axis of rotation of the dressing roll according to a predetermined setting scheme.
  • the diamond grains are arranged at intervals from each other.
  • the adjacent layers are arranged so that the diamond grains of one layer are disposed in gaps of the diamond grains of the other layer and partially protrude into the other layer.
  • the layers are thus interlocked or entangled, so that the thickness of the abrasive coating viewed in the axial direction is less than the sum of the grain diameters.
  • the form dressing roller according to the invention results in a broader diamond coating than in the above known Formabrichtrolle, the grain sizes are chosen so that at the edges of the pads natural radii arise that generate themselves and correspond to the smallest predetermined concave radius on the grinding wheel.
  • the width of a coating of two layers according to one embodiment of the invention is e.g. one and a half times the grain size. For four layers this gives a width of three grain sizes.
  • the setting scheme has at least one spiral or a plurality of geometrically identical spirals with a common center whose maximum diameters are circumferentially offset by an equal angle and along which the diamond grains are set, the center on the axis of rotation the Formabrichtrolle lies. If two layers are produced according to this setting scheme and then assembled, a corresponding angular rotation of the layers relative to one another is required in order to ensure the mentioned entanglement of the diamond grain arrangements.
  • the diamond form dressing roll consists of dressing platens arranged radially on their circumference, which are connected to one another via a metallic bond which is easy to sand.
  • sintered cobalt can be used.
  • a binding for a form dressing roll it is preferable to use a high tungsten content galvanic or sintered bond.
  • the grain size is equal to or smaller than 1.5 mm, and the length of the abrasive coating in the feed direction is preferably between 5 and 10 mm.
  • a form dressing roll for dressing diamond grinding wheels (not shown) in ceramic, metallic or synthetic resin bonding is shown at 10.
  • the Formabrichtrolle has a support body 12, for example made of steel or the like, on which a coating 14 is applied.
  • the covering consists of individual Diamtkörnern 16, which have approximately the same size, for example 0.9 mm or less.
  • the diamond grains 16 are on rays 18, which go through a common center of the Formabrichtrolle 10. However, the diamond grains 16 are not all in one plane, but in two offset in the axial direction of the dressing roller 10 levels.
  • the diamond grains 16 are arranged according to a predetermined setting scheme in two interlaced layers, wherein the diamonds of the one layer are arranged in gaps of the adjacent layers. This is a bit clearer 3 and 4 out.
  • a lining 14a is indicated with the sides 20 and 21 and the peripheral surface 22.
  • the hatching should only indicate that the diamond grains 24 and 26 are not in the same plane, which is in Fig. 3 in the circumferential direction and in Fig. 4 meant in the radial direction.
  • Fig. 5 six geometrically identical spirals 30 are arranged inside each other, wherein the largest diameter is offset by 30 °.
  • the spirals 30 are each drawn at an angle of about 360 °.
  • Starting with the largest diameter in each case six diamond grains 32 are arranged at a distance of 30 °.
  • the diamonds 32 are incorporated into a matrix which consists of a suitable binder, for example a galvanic or a sintered bond with a high tungsten content.
  • the binder is in 3 and 4 denoted by 34. Become two layers according to Fig.
  • the diamond grains 32 are again arranged on the rays offset by 15 °, wherein the diamond grains 36, which are additionally marked with a dot, are arranged in each case centrally between the rays.
  • the diamond grains 36 belong to a plane offset in the axial direction, the offset being smaller than the size of a diamond.
  • An example of the size of an offset is in the 3 and 4 shown.
  • the offset is, for example, such that the thickness of the overall coating, eg 14a according to 3 and 4 is about 1.5 times the diameter of the diamond grains 24, 26 and 32, 36, respectively.
  • the dressing form roll twelve diamonds are centered around the common center of the spirals 30, which is also the fulcrum of the forming roll. As wear progresses, diamonds come second on the spiral, and so on. Thus, even with progressive wear an approximately constant Um lakegeometrie the Form dressing roll, which generates itself in the course of their life. This also applies in particular to the edges 40, 42 of the covering ( 3 and 4 ). The edge radii remain constant over the wear cross section. Thus, the profile radii remain constant on the workpiece to be dressed. Since the dressing volume of the Formabrichtrolle is relatively large, the geometric wear in the direction of delivery is relatively small, so that even larger profile trains can be trained with great profile accuracy.
  • the diamonds 32 after Fig. 5 may arrange on a single spiral 30 in order to achieve the uniform wear in the radial direction. With several spirals rotated relative to each other, the diamond grains may be arranged approximately in a plane to obtain the minimum width of the coating from the diameter of a grain. During production, the diamond grains are placed on a fusible substrate and covered with sintered powder and finally sintered to obtain an annular coating.
  • Fig. 7 is a Formabrichtrolle 50 shown schematically, which consists of a carrier body 52 and individual on the carrier body 52 radially arranged plate 54. In the present case, eight such plates 54 are provided.
  • the platelets 54 are incorporated into a matrix 56 of a suitable readily-wearable binder 56 having, for example, sintered cobalt.
  • the structure of the platelets 54 goes out of the FIGS. 8 to 11 out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Materials For Medical Uses (AREA)

Claims (12)

  1. Rouleau de dressage avec un revêtement de grains de diamant à liant adapté pour le dressage de meules diamantées à liant céramique, métallique ou à base de résine synthétique, dans lequel le revêtement (14, 14a) est constitué d'au moins une couche, le revêtement (14, 14a) étant constitué d'au moins deux couches et dans chaque couche des grains de diamant individuels d'une classe de grosseur limitée sont disposés dans un plan perpendiculaire à l'axe de rotation du rouleau de dressage (10, 50) selon un schéma de placement prédéfini, caractérisé en ce que les grains de diamant de l'une des couches sont situés dans des interstices entre les grains de diamant de l'autre couche et dépassent partiellement dans l'autre couche de telle manière que la géométrie de surface périphérique du rouleau de dressage (10, 50) reste approximativement constante lors de la progression de l'usure.
  2. Rouleau de dressage selon la revendication 1, caractérisé en ce qu'un revêtement à deux couches présente approximativement une largeur de 1,5 fois la grosseur du grain.
  3. Rouleau de dressage selon l'une des revendications 1 à 2, caractérisé en ce que la grosseur des grains de diamant est choisie de telle manière qu'un rayon prédéfini est obtenu aux bords du revêtement indépendamment de la progression de l'usure.
  4. Rouleau de dressage selon l'une des revendications 1 à 3, caractérisé en ce que le schéma de placement présente au moins une spirale autour de l'axe de rotation du rouleau de dressage, sur laquelle les diamants sont placés.
  5. Rouleau de dressage selon la revendication 4, caractérisé en ce que le schéma de placement présente plusieurs spirales (30) de géométrie identique avec un centre commun, dont les diamètres les plus grands sont espacés dans la direction circonférentielle selon un écart angulaire identique et le long desquelles des grains de diamant (32) sont placés, le centre se trouvant sur l'axe de rotation du rouleau de dressage.
  6. Rouleau de dressage selon l'une des revendications 1 à 5, caractérisé en ce qu'il est constitué de plaquettes (54) individuelles, de préférence rectangulaires ou trapézoïdales qui sont disposées les unes derrière les autres dans la direction circonférentielle du rouleau de dressage, chaque plaquette présentant les au moins deux couches qui sont disposées dans un plan perpendiculaire à l'axe de rotation du rouleau de dressage.
  7. Rouleau de dressage selon la revendication 6, caractérisé en ce que les plaquettes (54) sont tenues dans une matrice (56) métallique en un matériau pouvant être meulé facilement.
  8. Rouleau de dressage selon la revendication 7, caractérisé en ce que le matériau est constitué de cobalt fritté.
  9. Rouleau de dressage selon l'une des revendications 1 à 6, caractérisé en ce qu'un liant galvanique ou fritté avec une teneur élevée en tungstène est prévu pour les grains de diamant.
  10. Rouleau de dressage selon l'une des revendications 1 à 9, caractérisé en ce que la granulométrie est égale ou inférieure à 0,3 mm.
  11. Rouleau de dressage selon l'une des revendications 1 à 10, caractérisé en ce que la longueur du revêtement abrasif est de 5 à 10 mm dans le sens du mouvement d'avance.
  12. Procédé de fabrication d'un rouleau de dressage selon la revendication 1, caractérisé par les étapes suivantes consistant à :
    - placer les grains de diamant selon le schéma de placement prédéfini sur un support avec une couche de colle pour fabriquer une couche,
    - ajouter de la poudre de liant,
    - empiler le nombre souhaité de couches en un empilement avec un décalage relatif ou angulaire des couches,
    - densifier à froid l'empilement de couches,
    - fritter.
EP02010000A 2001-11-17 2002-05-04 Rouleau de dressage diamanté et procédé de fabrication Expired - Lifetime EP1312446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10156661 2001-11-17
DE10156661A DE10156661A1 (de) 2001-11-17 2001-11-17 Diamant-Formabrichtrolle und Verfahren zur Herstellung

Publications (3)

Publication Number Publication Date
EP1312446A2 EP1312446A2 (fr) 2003-05-21
EP1312446A3 EP1312446A3 (fr) 2004-07-14
EP1312446B1 true EP1312446B1 (fr) 2008-11-19

Family

ID=7706187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010000A Expired - Lifetime EP1312446B1 (fr) 2001-11-17 2002-05-04 Rouleau de dressage diamanté et procédé de fabrication

Country Status (4)

Country Link
EP (1) EP1312446B1 (fr)
AT (1) ATE414588T1 (fr)
DE (2) DE10156661A1 (fr)
ES (1) ES2317965T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108918A1 (de) 2013-08-19 2015-02-19 Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg Formabrichtrolle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007320015A (ja) * 2006-06-05 2007-12-13 Toyoda Van Moppes Ltd ツルーイングロール及びその製造方法
DE202009018978U1 (de) 2009-09-12 2015-02-06 Saint-Gobain Diamantwerkzeuge Gmbh Vorrichtung zum Abrichten von Schleifscheiben
DE102016006951B4 (de) * 2016-06-08 2018-05-09 KAPP Werkzeugmaschinen GmbH Verfahren zum Herstellen eines Abrichtwerkzeugs für ein Schleifwerkzeug

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3378897D1 (en) * 1983-02-22 1989-02-16 Winter & Sohn Ernst Diamond form dressing roller for dressing grinding wheels
JPS6092406A (ja) * 1983-10-27 1985-05-24 Asahi Daiyamondo Kogyo Kk ボンドドレツサの製造法
DE3706868A1 (de) * 1986-07-30 1988-02-11 Winter & Sohn Ernst Abrichtwerkzeug fuer schleifscheiben
DE3920473C1 (fr) * 1989-06-22 1991-01-31 Jakob Lach Gmbh & Co Kg, 6450 Hanau, De
JPH04343674A (ja) * 1991-05-21 1992-11-30 Toyoda Mach Works Ltd 超硬質砥粒ロール
JPH10329042A (ja) * 1997-04-02 1998-12-15 Toyota Banmotsupusu Kk ダイヤモンドドレッサ
TW394723B (en) * 1997-04-04 2000-06-21 Sung Chien Min Abrasive tools with patterned grit distribution and method of manufacture
EP1133379B1 (fr) * 1998-11-23 2003-07-09 Ultimate Abrasive Systems, L.L.C. Procede permettant de fabriquer des articles frittes
JP3759399B2 (ja) * 2000-10-26 2006-03-22 株式会社リード 研磨布用ドレッサーおよびその製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108918A1 (de) 2013-08-19 2015-02-19 Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg Formabrichtrolle
US9956665B2 (en) 2013-08-19 2018-05-01 Saint-Gobain Diamantwerkzeuge Gmbh Form dressing roller

Also Published As

Publication number Publication date
DE50213024D1 (de) 2009-01-02
DE10156661A1 (de) 2003-06-05
EP1312446A3 (fr) 2004-07-14
ATE414588T1 (de) 2008-12-15
EP1312446A2 (fr) 2003-05-21
ES2317965T3 (es) 2009-05-01

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