EP0896860A2 - Meule de rectification - Google Patents

Meule de rectification Download PDF

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Publication number
EP0896860A2
EP0896860A2 EP98115103A EP98115103A EP0896860A2 EP 0896860 A2 EP0896860 A2 EP 0896860A2 EP 98115103 A EP98115103 A EP 98115103A EP 98115103 A EP98115103 A EP 98115103A EP 0896860 A2 EP0896860 A2 EP 0896860A2
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
grooves
wheel according
groove
flanks
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Withdrawn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
EP98115103A
Other languages
German (de)
English (en)
Other versions
EP0896860A3 (fr
Inventor
Udo Dr. Klicpera
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.)
Kopp Werkzeugmaschinen GmbH
Original Assignee
Kopp Werkzeugmaschinen GmbH
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 Kopp Werkzeugmaschinen GmbH filed Critical Kopp Werkzeugmaschinen GmbH
Publication of EP0896860A2 publication Critical patent/EP0896860A2/fr
Publication of EP0896860A3 publication Critical patent/EP0896860A3/fr
Withdrawn legal-status Critical Current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
    • B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots

Definitions

  • the invention relates to a grinding wheel according to the Preamble of claim 1.
  • Grinding wheels with and without grooves are known. It is further known that by better cooling of the grinding wheel and the workpiece, thanks to shorter contact times of the grain with the workpiece surface and of course through greater cutting depths the cutting performance of grinding wheels can be improved.
  • Comb washers are often used, which have ring grooves. These discs are used in part with the piercing process and partly worked in the side grinding process.
  • the grooves provide better cooling of the grinding wheel or the tool by an improved Coolant flow guaranteed. Furthermore, through grooves the removal of grinding dust and removed material of the workpiece improved.
  • ring grooves have the disadvantage that with numerous Machining tasks the grinding wheels several times need to be pierced and then the surface must be processed by longitudinal grinding.
  • a grinding wheel is known with two grooves in a zigzag shape over the circumference extend.
  • the grooves are arranged so that they overlap the entire circumference of the grinding wheel approximately in the middle Cross the grinding wheel (viewed in the axial direction).
  • the invention has for its object a grinding wheel to create that with high cutting performance and good grinding result has a long service life.
  • the grinding wheel has a disc-like cylindrical Form, the circumference of which is provided with an abrasive and has at least one groove.
  • This groove extends essentially in the circumferential direction, being between groove and Circumferential direction a helix angle of less than 45 ° is provided. This means that the groove extends to a certain extent obliquely over the circumference of the grinding wheel.
  • the workpiece is therefore the entire area processed in the grinding wheel width and different from Ring grooving is longitudinal grinding or multiple grooving not mandatory.
  • the helix angle is advantageously an acute angle, so that with wider grinding wheels there is a spiral groove extending over the circumference of the grinding wheel results.
  • the helix angle and the width of the grinding wheel in axial direction can be dimensioned so that the groove over at least a full extent or several times over the Extends the circumference of the grinding wheel.
  • grooves can be provided, which are parallel can extend to each other or not in parallel.
  • a parallel arrangement has the advantage that there are no crossing points arise, whereas a non-parallel arrangement has the advantage that the grooves can be arranged that the from the grinding wheel applied to the workpiece Compensate forces at least partially.
  • the grooves are provided in opposite directions.
  • the helix angle of the grooves cannot parallel grooves should be chosen so that the resulting The grooves do not cross on a circumferential line lie, but offset laterally, i.e. in the axial direction are. This has the advantage that the cutting performance over the width of the grinding wheel does not vary widely.
  • the Helix angles can also be chosen so that the Crossing points at small intervals across the width of the Wander grinding wheel, so that there is a very uniform Cutting performance results.
  • the flanks of the grinding wheel adjacent to the grooves can be single-sided or double-sided with a straight cut be provided.
  • the flanks can also be used with a Bevel cut. It has been shown that the sharp edges that arise from a straight cut enable high cutting performance, but relatively wear out quickly and then the grinding wheel can continue to be used, but must be adjusted. This interrupts the manufacturing process. Furthermore sharp edges tend to chipping and through the Wear of the edge can result in a contour with regard to the cutting performance and tool life are not optimal is.
  • bevel at least one side of the flanks provided in this way an exact from the start predefined bevel of the edge.
  • the grinding wheel can have a certain contour on the circumference have a by plunge grinding on the workpiece to generate the corresponding counter contour.
  • the grooves can be retrofitted into the grinding wheel, for example, with the help of a diamond disc become.
  • the grinding wheel can also have a groove have provided base body with abrasives such as Corundum, carbide, boron nitride or diamond is coated.
  • the grinding wheel according to the invention can be a CBN, ceramic or resin bonded disc act.
  • the circumference of the grinding wheel 1 can be seen in FIG.
  • the grinding wheel 1 has a base body 2 which is already provided with grooves 4 and the grooves 4 adjacent flanks 3 are provided with an abrasive coating 6 are.
  • the illustrated embodiment has a groove 4, which is only slightly inclined to the vertical. Of the helix angle W is provided with respect to the vertical marked in area 5. Because of the very pointed Helix angle W, which is only approx. 1.5 °, results from the width of the grinding wheel shown a groove 4, which is about four times the circumference of the Grinding wheel extends.
  • the coolant and the sanding dust can accumulate over the Distribute continuous groove 4 well and it is due to the Helix angle W ensures that each area of the Workpiece even without moving the grinding wheel is processed. Furthermore, due to the acute angle only a small lateral force, i.e. a force on the workpiece in the axial direction of the grinding wheel upset. With angles up to approx. 5 ° the occurring Shear force are practically neglected.
  • FIG. 2 shows that designated X in FIG. 1 Detail that the design of the edges of the flanks 3 represents enlarged. With this design they are Flanks 3 with a straight cut, so that 3 sharp 90 ° edges between the faces of the flanks surrender.
  • Figure 3 shows an alternative design in which the Flanks 3 are provided on one side with a chamfer 8.
  • the geometric dimensions of the chamfer 8 are determined by the Height B and width A are defined.
  • Figure 4 shows a further alternative in which instead a chamfer 8 a rounding 9 is provided, the one Radius R. Because of this rounding arise at Transition of the surfaces of the flanks 3 no sharp Edge.
  • Figure 5 shows an alternative design that is provided was created in the workpiece by means of plunge grinding certain contour, in this case a triangular groove Cross section.
  • a grinding wheel with a wheel-like is disclosed cylindrical shape, the circumference of which with an abrasive is provided and has at least one groove, wherein the groove extends substantially in the circumferential direction and a helix angle between the groove and the circumferential direction of less than 45 ° is provided.
  • the Helix angle formed as an acute angle and so dimensioned that the groove over at least a full Extends the circumference of the grinding wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP98115103A 1997-08-11 1998-08-11 Meule de rectification Withdrawn EP0896860A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19734793A DE19734793A1 (de) 1997-08-11 1997-08-11 Schleifscheibe
DE19734793 1997-08-11
US09/132,569 US6062969A (en) 1997-08-11 1998-08-11 Grinding wheel with spiral grooved face

Publications (2)

Publication Number Publication Date
EP0896860A2 true EP0896860A2 (fr) 1999-02-17
EP0896860A3 EP0896860A3 (fr) 2001-01-31

Family

ID=26039047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115103A Withdrawn EP0896860A3 (fr) 1997-08-11 1998-08-11 Meule de rectification

Country Status (3)

Country Link
US (1) US6062969A (fr)
EP (1) EP0896860A3 (fr)
DE (1) DE19734793A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251144A1 (fr) * 2009-05-11 2010-11-17 Salinas e Hijos S.L. Rouleau pour polir des surfaces métalliques

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000343407A (ja) * 1999-06-08 2000-12-12 Ebara Corp ドレッシング装置
WO2002055246A2 (fr) * 2000-11-10 2002-07-18 Gemsaw, Inc. Lame de scie revetue
CN2873414Y (zh) * 2005-11-04 2007-02-28 鸿富锦精密工业（深圳）有限公司 滚圆设备
US20070180779A1 (en) * 2006-02-07 2007-08-09 Fang-Chun Yu Saw blade for diamond tool
GB2435440A (en) * 2006-02-22 2007-08-29 Siemens Ag A grinding wheel
DE102015221732A1 (de) * 2015-11-05 2017-05-24 Bayerische Motoren Werke Aktiengesellschaft Drehendes Schleifwerkzeug
RS63356B1 (sr) * 2018-11-13 2022-07-29 Klingspor Ag Disk za sečenje, brušenje i poliranje i postupak za obradu radnih komada

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763105A (en) * 1953-03-04 1956-09-18 Westinghouse Electric Corp Burnishing wheel
DE1700813U (de) * 1954-10-01 1955-06-23 Hopf Ringleb & Co Rotierendes schleifgeraet, insbesondere fuer dentalzwecke.
US2907314A (en) * 1955-09-22 1959-10-06 Vinco Corp Grinding wheel dresser
GB1327601A (en) * 1969-09-30 1973-08-22 Moon Star Chemical Corp Honing gear teeth
US3916579A (en) * 1975-02-10 1975-11-04 Tunco Manufacturing Inc Slotted abrasive wheel
DE2758285A1 (de) * 1977-12-27 1979-06-28 Honda Motor Co Ltd Schleifscheibe und verfahren zu ihrer herstellung
US4226055A (en) * 1979-06-08 1980-10-07 General Electric Company Dressing and conditioning resin-bonded diamond grinding wheel
JPS6165778A (ja) * 1984-09-06 1986-04-04 Saiguu Tsuchiya 砥石車
DE3680086D1 (de) * 1985-12-13 1991-08-08 Oerlikon Buehrle Ag Verfahren zum schleifen der verzahnung von kegelraedern mit laengsgekruemmten zaehnen sowie werkzeug und vorrichtung zur durchfuehrung des verfahrens.
DE4109647A1 (de) * 1991-03-23 1992-09-24 Winter & Sohn Ernst Schleifscheibe
JPH0539862U (ja) * 1991-11-06 1993-05-28 豊田工機株式会社 セグメント砥石
NL9300826A (nl) * 1993-05-13 1994-12-01 Crown Gear Bv Gereedschap voor het vervaardigen van een kroonwiel dat kan samenwerken met een rondsel met schuine tanden en werkwijze voor het vervaardigen van een dergelijk kroonwiel.
DE19538841A1 (de) * 1995-08-14 1997-02-20 Waldemar Loeser Schleifkörper
US5823857A (en) * 1996-04-23 1998-10-20 Mcdonnell Douglas Helicopter Company Apparatus and method for precision grinding of face gears

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251144A1 (fr) * 2009-05-11 2010-11-17 Salinas e Hijos S.L. Rouleau pour polir des surfaces métalliques

Also Published As

Publication number Publication date
DE19734793A1 (de) 1999-02-18
US6062969A (en) 2000-05-16
EP0896860A3 (fr) 2001-01-31

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