EP0426173A2 - Drehendes Diamant-Abziehwerkzeug - Google Patents

Drehendes Diamant-Abziehwerkzeug Download PDF

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Publication number
EP0426173A2
EP0426173A2 EP90120944A EP90120944A EP0426173A2 EP 0426173 A2 EP0426173 A2 EP 0426173A2 EP 90120944 A EP90120944 A EP 90120944A EP 90120944 A EP90120944 A EP 90120944A EP 0426173 A2 EP0426173 A2 EP 0426173A2
Authority
EP
European Patent Office
Prior art keywords
diamond
pieces
dresser
rotary
wear
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.)
Withdrawn
Application number
EP90120944A
Other languages
English (en)
French (fr)
Other versions
EP0426173A3 (en
Inventor
Kunihiko Unno
Munehiko Yokogawa
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.)
Yokokawa Munehiko
Toyoda Koki KK
Original Assignee
Yokokawa Munehiko
Toyoda Koki KK
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 Yokokawa Munehiko, Toyoda Koki KK filed Critical Yokokawa Munehiko
Publication of EP0426173A2 publication Critical patent/EP0426173A2/de
Publication of EP0426173A3 publication Critical patent/EP0426173A3/en
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a rotary diamond dresser for use in shaping and sharpening a grinding wheel.
  • a single-point diamond dresser has hitherto been used to dress a grinding wheel with super abrasive grains, such as a diamond grinding wheel and a cubic boron nitride (CBN) grinding wheel.
  • the tip of such a single-point dresser is subject to substantial wear.
  • the prior art dresser is thus unable to shape the grinding wheel after a long period of use.
  • a contact area between the dresser and the grinding wheel increases as the tip of the dresser is worn. This results in the rise of dressing resistance and thus, adversely affects not only the efficiency of dressing operation, but also the abrasive action of the grinding wheel.
  • a rotary diamond dresser as shown in Fig. 7.
  • the dresser includes a body 11 which has a dressing layer 13 on its outer periphery.
  • a multiplicity of diamond grains 12 are uniformly embedded in the dressing layer 13.
  • separation of the diamond grains 12 from the dressing layer 13 is likely to occur during use. This results in the change of the number and distribution of the diamond grains.
  • the amount and manner of dressing are not constant since crystals of the diamond grains on the dresser are oriented in a different fashion.
  • a rotary diamond dresser of the present invention includes a body having an outer peripheral portion in which a multiplicity of diamond pieces are radially embedded in a circumferentially egually spaced relationship. Crystals of the diamond pieces are oriented in such a manner as to maximize its resistance to wear.
  • the diamond pieces are firmly held by the body and will not be released therefrom. Also, the cross section of each diamond piece remains the same if worn. This enables a grinding wheel as dressed to perform the abrasive action in a constant manner. Crystals of all diamond pieces are oriented in such a manner as to maximize its resistance to wear. This substantially reduces the amount of wear to which the dresser is subject and allows the diamond pieces to be uniformly worn.
  • the reference numeral 1 denotes a stepped body in the form of a disk and made of a sintered alloy.
  • the reference numeral 2 denotes a multiplicity of diamond pieces. Each diamond piece 2 has a square section and is 0.2 mm wide and 2.0 mm long. These diamond pieces 2 are embedded in the outer periphery of the body 1 in a circumferentially equally spaced relationship. The tip of each diamond piece 2 projects radially therefrom.
  • Crystals of the diamond pieces 2 are oriented circumferentially of the body 1 to increase its resistance to wear.
  • each diamond piece 2 is positioned about a longitudinal axis such that the direction in which the diamond piece 2 receives a force from a grinding wheel is aligned with the direction in which the diamond piece 2 has resistance to wear.
  • the diamond piece 2 has resistance to wear in a direction at right angles to a lateral side 2a as shown in Fig. 5.
  • the diamond piece 2 is embedded such that the lateral side 2ais oriented circumferentially of the body 1 as shown in Fig. 3. This arrangement improves its resistance to wear, and the diamond piece 2 may uniformly be worn if any.
  • the diamond piece 2 is not limited to a square rod and may be in the form of a round rod or column. Also, a plurality of arrays of diamond pieces 2 may be used. In such a case, the steps (3) and (4) are repeated, but disk portions 1a are arranged one above the other, and the step portion 1b is then added thereto.
  • the diamond pieces 2 are deeply embedded in the body 1. This prevents release of the diamond pieces 2 from the body 1. Also, the cross section of the diamond piece 2 remains the same if worn.
  • the crystals of all the diamond pieces 2 are oriented in an identical manner so as to maximize its resistance to wear. This substantially reduces the amount of which the diamond pieces 2 are worn and allows the diamond pieces 2 to be uniformly worn.
  • the rotary diamond dresser of the present invention has a long service life and is able to dress the grinding wheel in a constant manner for a long period of time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP19900120944 1989-10-31 1990-10-31 Rotary diamond dresser Withdrawn EP0426173A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP281882/89 1989-10-31
JP28188289A JPH03149182A (ja) 1989-10-31 1989-10-31 ダイヤモンドドレッサ

Publications (2)

Publication Number Publication Date
EP0426173A2 true EP0426173A2 (de) 1991-05-08
EP0426173A3 EP0426173A3 (en) 1991-07-17

Family

ID=17645285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900120944 Withdrawn EP0426173A3 (en) 1989-10-31 1990-10-31 Rotary diamond dresser

Country Status (2)

Country Link
EP (1) EP0426173A3 (de)
JP (1) JPH03149182A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558869A1 (de) * 1992-03-02 1993-09-08 Gebrüder Sulzer Aktiengesellschaft Gegenstand mit einer Abrasionsfläche und Verfahren zum Herstellen des Gegenstandes
EP0922533A2 (de) * 1997-12-09 1999-06-16 ERNST WINTER & SOHN Diamantwerkzeuge GmbH & Co. Abrichtrolle für Schleifscheiben
EP1331063A1 (de) * 2002-01-25 2003-07-30 WENDT GmbH Abrichtrolle und Verfahren zur Herstellung einer Abrichtrolle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201709626D0 (en) 2017-06-16 2017-08-02 Rolls Royce Plc Abrasive machining

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR714145A (fr) * 1930-04-01 1931-11-07 Thomson Houston Comp Francaise Perfectionnements aux outils à molettes pour parfaire la surface abrasive des meules, et à leurs procédés de fabrication
EP0052749A2 (de) * 1980-11-25 1982-06-02 Ernst Winter & Sohn (GmbH & Co.) Mehrschneidiges Abrichtwerkzeug
DD246068A1 (de) * 1986-02-10 1987-05-27 Smab Forsch Entw Rat Abrichtnadelmine
EP0321969A2 (de) * 1987-12-23 1989-06-28 Fortuna-Werke Maschinenfabrik GmbH Abrichtrolle und Verfahren zu deren Herstellung
DE3811784A1 (de) * 1987-12-23 1989-07-06 Fortuna Werke Maschf Ag Abrichtrolle und verfahren zum abrichten einer schleifmaschine
DE3838517A1 (de) * 1988-03-21 1989-10-05 Kuenne Klaus Ulrich Abrichtvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR714145A (fr) * 1930-04-01 1931-11-07 Thomson Houston Comp Francaise Perfectionnements aux outils à molettes pour parfaire la surface abrasive des meules, et à leurs procédés de fabrication
EP0052749A2 (de) * 1980-11-25 1982-06-02 Ernst Winter & Sohn (GmbH & Co.) Mehrschneidiges Abrichtwerkzeug
DD246068A1 (de) * 1986-02-10 1987-05-27 Smab Forsch Entw Rat Abrichtnadelmine
EP0321969A2 (de) * 1987-12-23 1989-06-28 Fortuna-Werke Maschinenfabrik GmbH Abrichtrolle und Verfahren zu deren Herstellung
DE3811784A1 (de) * 1987-12-23 1989-07-06 Fortuna Werke Maschf Ag Abrichtrolle und verfahren zum abrichten einer schleifmaschine
DE3838517A1 (de) * 1988-03-21 1989-10-05 Kuenne Klaus Ulrich Abrichtvorrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558869A1 (de) * 1992-03-02 1993-09-08 Gebrüder Sulzer Aktiengesellschaft Gegenstand mit einer Abrasionsfläche und Verfahren zum Herstellen des Gegenstandes
EP0922533A2 (de) * 1997-12-09 1999-06-16 ERNST WINTER & SOHN Diamantwerkzeuge GmbH & Co. Abrichtrolle für Schleifscheiben
DE19754517A1 (de) * 1997-12-09 1999-06-17 Winter & Sohn Ernst Abrichtrolle für Schleifscheiben
DE19754517C2 (de) * 1997-12-09 2001-02-01 Winter & Sohn Ernst Abrichtrolle für Schleifscheiben und Verfahren zur Herstellung einer Abrichtrolle
EP0922533A3 (de) * 1997-12-09 2001-03-28 ERNST WINTER & SOHN Diamantwerkzeuge GmbH & Co. Abrichtrolle für Schleifscheiben
EP1331063A1 (de) * 2002-01-25 2003-07-30 WENDT GmbH Abrichtrolle und Verfahren zur Herstellung einer Abrichtrolle
US6827072B2 (en) 2002-01-25 2004-12-07 Wendt Gmbh Dressing wheel and method of making same

Also Published As

Publication number Publication date
JPH03149182A (ja) 1991-06-25
EP0426173A3 (en) 1991-07-17

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