US20090203296A1 - Device and method for truing a machining wheel by means of a rotating truing tool as well as machine tool with a device of this kind - Google Patents

Device and method for truing a machining wheel by means of a rotating truing tool as well as machine tool with a device of this kind Download PDF

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Publication number
US20090203296A1
US20090203296A1 US12/321,296 US32129609A US2009203296A1 US 20090203296 A1 US20090203296 A1 US 20090203296A1 US 32129609 A US32129609 A US 32129609A US 2009203296 A1 US2009203296 A1 US 2009203296A1
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United States
Prior art keywords
truing
rotation
axis
machining wheel
wheel
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Abandoned
Application number
US12/321,296
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English (en)
Inventor
Rainer Braig
Norbert Bailer
Manfred Saegemueller
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.)
Vollmer Werke Maschinenfabrik GmbH
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Vollmer Werke Maschinenfabrik GmbH
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Filing date
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Application filed by Vollmer Werke Maschinenfabrik GmbH filed Critical Vollmer Werke Maschinenfabrik GmbH
Assigned to VOLLMER WERKE MASCHINENFABRIK GMBH reassignment VOLLMER WERKE MASCHINENFABRIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAILER, NORBERT, BRAIG, RAINER, SAEGEMUELLER, MANFRED
Publication of US20090203296A1 publication Critical patent/US20090203296A1/en
Abandoned legal-status Critical Current

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    • 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
    • B24B53/005—Positioning devices for conditioning tools
    • 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
    • B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
    • B24B53/053—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels using a rotary dressing tool

Definitions

  • the present invention relates to a device for truing a machining wheel, in particular grinding or eroding wheel, by means of a rotating truing tool, comprising:
  • the truing tool rotatably driven by the second rotating spindle can be brought into material-removing contact with the machining wheel rotatably driven by the first rotating spindle.
  • the present invention also relates to a corresponding method as well as a machine tool which is equipped with a device of this kind.
  • DE 34 37 682 C2 presents a device for truing double-cone grinding bodies in which the axis of rotation of the spindle is disposed perpendicularly to the axis of rotation of the double-cone grinding body, and replaceable truing heads are attached to the spindle by a fastening element.
  • DE 1 289 449 discloses a truing device for grinding wheels in which the axis of rotation of a shaft which bears the truing roll is disposed substantially perpendicularly to the axis of rotation of the grinding wheel which is to be trued.
  • the truing roll is guided around the corners and over the surface of the grinding wheel by a template and a sensing roll, which has the same diameter as the truing roll.
  • an object of the present invention is to provide a device as well as a method of the type initially described with which the truing result can be improved at a low technical expense.
  • This object is achieved by a device of the type initially described in which the first and the second axis of rotation do not intersect during the entire truing process, and the first axis of rotation is oriented substantially orthogonally to the second axis of rotation during the entire truing process such that the truing tool wears uniformly over its entire circumference during the entire truing process.
  • substantially orthogonal means that a deviation from the entirely orthogonal orientation by +/ ⁇ 10° is possible. In other words, in spite of the wear occurring on the truing tool, a truing result which is substantially independent of this can be achieved through an axial orientation of this kind.
  • the contacting point between the truing tool and the machining wheel is, according to this axial arrangement, located on the outer diameter, i.e. on the “equator” of the respective wheel. Due to the axial arrangement according to the invention, the truing tool wears substantially uniformly over its entire circumference, so that no wear-induced profiles which have a negative influence on the truing result are produced on the truing tool. It is understood that it is possible to move both the truing tool relative to the machining wheel and the machining wheel relative to the truing tool when truing.
  • the second rotating spindle can be displaceable relative to the first rotating spindle during truing, with the second axis of rotation associated with the second rotating spindle being movable along a path extending parallel to a desired profile of the machining wheel.
  • the truing tool can be movable along a linear path extending parallel to the second axis of rotation in order to true the machining wheel.
  • the truing tool can act with a circumferential surface on a circumferential surface of the machining wheel.
  • This truing variant is in particular used when a machining wheel is trued at its circumferential surface, the circumferential surface being substantially of circular cylindrical form ation.
  • the truing tool in order to true a profiled machining wheel, i.e. one which is not of entirely circular cylindrical formation, at its circumferential surface, it is also possible, in order to true the machining wheel, for the truing tool to be movable along a curved path which extends parallel in direction to a curved contour to be trued of the truing tool.
  • the truing tool is displaced in direction components both parallel and orthogonal to the first axis of rotation, with the second axis of rotation describing a path which extends substantially parallel in direction to the desired profile of the machining wheel.
  • the second rotating spindle can be approachable to the first rotating spindle in order to compensate for material removal at the machining wheel or/and at the truing tool caused by the truing, with the spacing of the first and second axis of rotation decreasing. It is as a result possible to compensate for wear on the truing tool, although also on the machining wheel.
  • Truing wheels frequently consist of SiC (silicon carbide), corundum or special fused alumina.
  • a truing tool of a diamond grit material in the case of which the amount of material removed is relatively small. Wear can be detected at the truing wheel through active measurement with a measuring probe or without contact, for example optically or through structure-borne sound measurement.
  • the invention also relates to a method for truing a machining wheel, in particular a grinding or an eroding wheel, by means of a rotating truing tool with a device of the type described above, wherein, in order to true the machining wheel, the truing tool rotatably driven by the second rotating spindle is brought into material-removing contact with the machining wheel rotatably driven by the first rotating spindle, wherein the first axis of rotation is maintained substantially orthogonal to the second axis of rotation.
  • the second rotating spindle prefferably be displaced relative to the first rotating spindle during truing such that the second axis of rotation associated with the second rotating spindle is moved along a path extending parallel to a desired profile of the machining wheel.
  • the truing tool can be moved along a linear path extending parallel to the second axis of rotation in order to true the machining wheel.
  • the method according to the invention can also provide, in order to true the machining wheel, for the truing tool to be moved along a curved path which extends parallel in direction to a curved contour to be trued of the truing tool.
  • one of these components can in each case be maintained stationary, with the other component executing the required relative movements.
  • the second rotating spindle prefferably be approached to the first rotating spindle in order to compensate for material removal at the machining wheel or/and at the truing tool caused by the truing, with the spacing of the first and second axis of rotation decreasing.
  • the invention also relates to a machine tool, in particular grinding or/and eroding machines, with a device of the type described above, wherein the first axis of rotation is formed by a machining spindle holding the machining wheel, and wherein the second rotating spindle is formed by a truing spindle which can be displaced relative to this.
  • FIG. 1 is a perspective representation of a machining spindle and a workpiece holding device with a truing spindle attached thereto;
  • FIG. 2 is a schematic representation showing a profiled machining wheel being trued
  • FIG. 3 is a schematic representation showing a cup wheel being trued according to the invention.
  • FIG. 4 is a representation according to FIG. 3 showing a circular cylindrical circumferential wheel being trued according to the invention.
  • FIG. 5 is a schematic representation showing a profiled circumferential wheel being trued according to the invention.
  • FIG. 1 A detail of a machine tool according to the invention is represented and generally marked by 10 in FIG. 1 .
  • This has a machining head 12 which is fastened in a machine frame in a manner which is not shown.
  • the machine tool also has a workpiece holder 14 , which is likewise attached to the machine frame in a manner which is not shown.
  • the machining head 12 has a machining spindle 16 with a spindle shaft 18 , to which a machining wheel 20 is attached in a rotationally rigid manner.
  • the spindle shaft 18 can be driven so as to rotate about an axis of rotation 22 for rotatably driving the machining wheel 20 .
  • the machining wheel 20 is a grinding wheel, although it can equally be formed as an eroding wheel.
  • a workpiece accommodating device 24 is provided on the workpiece holder 14 .
  • Attached to the side of the workpiece accommodating device 24 is a truing spindle 26 , on the rotatably drivable spindle pin 28 of which a truing wheel 30 is mounted in a rotationally rigid manner.
  • the truing wheel 30 can be driven so as to rotate about a second axis of rotation 32 .
  • the axes of rotation 22 and 32 extend substantially orthogonally to one another, that is during the entire truing process.
  • FIG. 2 is additionally to be considered for a more detailed illustration of the truing operation.
  • the truing wheel is shown in three different positions 30 1 , 30 2 and 30 3 , with the positions 30 1 and 30 3 showing the end points of the truing machining and the position 30 2 showing a central position.
  • the axis of rotation 32 of the truing wheel 30 extends along a path 34 which is substantially parallel in direction to the outer contour 36 of the machining wheel 20 which is to be trued.
  • This outer contour is substantially in the shape of a circular segment in the cross section which is shown in FIG. 2 .
  • FIGS. 3 to 5 show different truing situations according to the invention. It is understood that here the machining situation is shown in a side view of the machining wheel 20 on the left-hand side and in a front view of the machining wheel 20 on the right-hand side.
  • FIG. 3 shows a cup-shaped machining wheel 20 which is machined with the truing wheel 30 at its front-side surface 38 .
  • the truing wheel 30 rotating about the axis of rotation 32 , which is orthogonal to the plane of the drawing in the left-hand part of the figure, is in material-removing contact with the surface 38 . It is displaced to-and-fro along its axis of rotation 32 according to the arrow P transversely to the machining wheel 20 , with the machining wheel 20 rotating about its axis of rotation 22 .
  • FIG. 4 shows a second machining situation in which the circular cylindrical circumferential surface 40 of the machining wheel 20 is trued with the truing wheel 30 .
  • the axes of rotation 22 and 32 are again orthogonal to one another.
  • the truing wheel 30 rotating about the axis of rotation 32 is moved to-and-fro according to the arrow Q in material-removing contact with the machining wheel 20 parallel to the axis of rotation 22 thereof, with the machining wheel 20 also rotating.
  • the movement along the arrow Q is a linear movement corresponding to the cylindrical outer contour 40 of the machining wheel 20 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
US12/321,296 2008-01-17 2009-01-20 Device and method for truing a machining wheel by means of a rotating truing tool as well as machine tool with a device of this kind Abandoned US20090203296A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008004848A DE102008004848A1 (de) 2008-01-17 2008-01-17 Vorrichtung und Verfahren zum Abrichten einer Bearbeitungsscheibe mittels eines rotierenden Abrichtwerkzeugs sowie Werkzeugmaschine mit einer derartigen Vorrichtung
DE102008004848.8 2008-01-17

Publications (1)

Publication Number Publication Date
US20090203296A1 true US20090203296A1 (en) 2009-08-13

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US12/321,296 Abandoned US20090203296A1 (en) 2008-01-17 2009-01-20 Device and method for truing a machining wheel by means of a rotating truing tool as well as machine tool with a device of this kind

Country Status (4)

Country Link
US (1) US20090203296A1 (de)
EP (1) EP2080590A1 (de)
CN (1) CN101486167A (de)
DE (1) DE102008004848A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120058716A1 (en) * 2009-06-15 2012-03-08 Tsuyoshi Yagi Grinding device
CN102390037A (zh) * 2010-11-13 2012-03-28 西安合升动力科技有限公司 一种修磨砂轮的装置
CN103286686A (zh) * 2013-06-04 2013-09-11 南京工业大学 数控成形磨齿金刚滚轮非线性磨损补偿系统及方法
US9233428B2 (en) 2011-12-23 2016-01-12 Williams & White Machine Inc. Computer controlled multiple axis grinding machine for grinding saw blades
US20200316751A1 (en) * 2019-04-05 2020-10-08 Honda Motor Co., Ltd. Systems and methods of processing a rotatable assembly
US20210245320A1 (en) * 2020-02-06 2021-08-12 Fives Landis Corp. Acoustic crankpin location detection

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152239B (zh) * 2011-03-19 2013-01-23 上海规程精密机械有限公司 一种砂轮成型修整机床
DE102012001898B3 (de) * 2012-02-01 2013-04-25 Emag Holding Gmbh Doppelspindlige Schleifmaschine
WO2014057894A1 (ja) * 2012-10-10 2014-04-17 旭硝子株式会社 弾性砥石のドレッシング方法
CN106002635B (zh) * 2016-05-13 2017-11-17 哈尔滨工业大学 基于绿碳化硅碟片的金刚石球头砂轮精密在位修整装置及方法
JP6270921B2 (ja) * 2016-06-28 2018-01-31 株式会社リード ブレードのドレッシング機構を備えた切削装置
CN109202692B (zh) * 2017-07-07 2022-02-15 3M创新有限公司 研磨装置和研磨操作方法
CN109202726A (zh) * 2017-07-07 2019-01-15 广东科杰机械自动化有限公司 修整单元和数控加工设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313285A (en) * 1964-04-27 1967-04-11 Landis Tool Co Impregnated indexing roller for grinding wheel dressers
US3822689A (en) * 1972-03-08 1974-07-09 Toyoda Machine Works Ltd Side dressing device
US4051830A (en) * 1976-05-11 1977-10-04 Cincinnati Milacron, Inc. Wheel dressing apparatus and method
US4103668A (en) * 1976-07-30 1978-08-01 Toyoda-Koki Kabushiki-Kaisha Dressing apparatus for grinding wheel
US4984390A (en) * 1989-11-09 1991-01-15 Nippei Toyama Corporation Grinding disc dressing apparatus
US5472371A (en) * 1991-07-09 1995-12-05 Hitachi, Ltd. Method and apparatus for truing and trued grinding tool
US20020081944A1 (en) * 1999-01-18 2002-06-27 Nsk Ltd. Method and apparatus for forming grooves on a workpiece and for dressing a grindstone used in the groove formation
US6884151B2 (en) * 1999-01-18 2005-04-26 Nsk Ltd. Method and apparatus for forming grooves on a workpiece and for dressing a grindstone used in the groove formation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133488C2 (de) * 1981-08-25 1994-07-28 Montanwerke Walter GmbH, 7400 Tübingen Programmgesteuerte Werkzeugschleifmaschine
JPS6033006A (ja) * 1983-08-02 1985-02-20 Toyoda Mach Works Ltd 円筒型砥石車のツル−イング装置
DD219142B5 (de) * 1983-11-09 1996-08-08 Niles Werkzeugmasch Gmbh Einrichtung zum Abrichten von Doppelkegelschleifkoerpern
DE4242906C2 (de) * 1992-12-18 1995-09-14 Walter Ag Numerisch gesteuerte Schleifmaschine zum Schleifen von vorzugsweise metallischen Werkstücken, insbesondere Werkzeugen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313285A (en) * 1964-04-27 1967-04-11 Landis Tool Co Impregnated indexing roller for grinding wheel dressers
US3822689A (en) * 1972-03-08 1974-07-09 Toyoda Machine Works Ltd Side dressing device
US4051830A (en) * 1976-05-11 1977-10-04 Cincinnati Milacron, Inc. Wheel dressing apparatus and method
US4103668A (en) * 1976-07-30 1978-08-01 Toyoda-Koki Kabushiki-Kaisha Dressing apparatus for grinding wheel
US4984390A (en) * 1989-11-09 1991-01-15 Nippei Toyama Corporation Grinding disc dressing apparatus
US5472371A (en) * 1991-07-09 1995-12-05 Hitachi, Ltd. Method and apparatus for truing and trued grinding tool
US20020081944A1 (en) * 1999-01-18 2002-06-27 Nsk Ltd. Method and apparatus for forming grooves on a workpiece and for dressing a grindstone used in the groove formation
US6884151B2 (en) * 1999-01-18 2005-04-26 Nsk Ltd. Method and apparatus for forming grooves on a workpiece and for dressing a grindstone used in the groove formation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120058716A1 (en) * 2009-06-15 2012-03-08 Tsuyoshi Yagi Grinding device
US9108294B2 (en) * 2009-06-15 2015-08-18 Ntn Corporation Grinding device
CN102390037A (zh) * 2010-11-13 2012-03-28 西安合升动力科技有限公司 一种修磨砂轮的装置
US9233428B2 (en) 2011-12-23 2016-01-12 Williams & White Machine Inc. Computer controlled multiple axis grinding machine for grinding saw blades
CN103286686A (zh) * 2013-06-04 2013-09-11 南京工业大学 数控成形磨齿金刚滚轮非线性磨损补偿系统及方法
US20200316751A1 (en) * 2019-04-05 2020-10-08 Honda Motor Co., Ltd. Systems and methods of processing a rotatable assembly
US11577365B2 (en) * 2019-04-05 2023-02-14 Honda Motor Co., Ltd. Systems and methods of processing a rotatable assembly
US20210245320A1 (en) * 2020-02-06 2021-08-12 Fives Landis Corp. Acoustic crankpin location detection
US11633825B2 (en) * 2020-02-06 2023-04-25 Fives Landis Corp. Acoustic crankpin location detection

Also Published As

Publication number Publication date
EP2080590A1 (de) 2009-07-22
CN101486167A (zh) 2009-07-22
DE102008004848A1 (de) 2009-07-23

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Owner name: VOLLMER WERKE MASCHINENFABRIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BRAIG, RAINER;BAILER, NORBERT;SAEGEMUELLER, MANFRED;REEL/FRAME:022519/0859;SIGNING DATES FROM 20090225 TO 20090226

STCB Information on status: application discontinuation

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