EP0176654B1 - Verfahren und Vorrichtung zum Hochgeschwindigkeits-Profilschleifen von rotationssymmetrischen Werkstücken - Google Patents

Verfahren und Vorrichtung zum Hochgeschwindigkeits-Profilschleifen von rotationssymmetrischen Werkstücken Download PDF

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Publication number
EP0176654B1
EP0176654B1 EP85102261A EP85102261A EP0176654B1 EP 0176654 B1 EP0176654 B1 EP 0176654B1 EP 85102261 A EP85102261 A EP 85102261A EP 85102261 A EP85102261 A EP 85102261A EP 0176654 B1 EP0176654 B1 EP 0176654B1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
workpiece
grinding
face
ground
Prior art date
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Expired - Lifetime
Application number
EP85102261A
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German (de)
English (en)
French (fr)
Other versions
EP0176654A2 (de
EP0176654A3 (en
Inventor
Erwin Junker
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.)
Individual
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Individual
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Filing date
Publication date
Priority claimed from DE3435313A external-priority patent/DE3435313C2/de
Application filed by Individual filed Critical Individual
Priority to AT85102261T priority Critical patent/ATE78204T1/de
Publication of EP0176654A2 publication Critical patent/EP0176654A2/de
Publication of EP0176654A3 publication Critical patent/EP0176654A3/de
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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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor

Definitions

  • the invention relates to a method and a device for high-speed profile grinding of rotationally symmetrical workpieces which are clamped in a grinding machine so as to be rotatable about their longitudinal axis.
  • grinding wheels have been used for profile grinding of rotating bodies, the contour of which corresponds to the profile to be ground. Grinding disks that are as wide as the profile have the disadvantage that they grind the workpiece under so-called "line contact” and correspondingly high radial forces, with the result that the coolant does not have an optimal effect.
  • work is generally carried out at relatively low cutting speeds because of the large mass of such a grinding wheel. This results in a relatively long processing time, which increases the workpiece costs accordingly.
  • SU-A-852 502 describes a grinding machine in which the grinding wheel axis can be pivoted against the workpiece axis. It is prescribed there that the grinding wheel edges should not be used for grinding. That is why the width of the grinding wheel is used in the middle of its surface line in order to finish the workpiece in an oscillating process.
  • this grinding wheel is in contact with the workpiece to be machined with a larger, broad surface during the grinding process that itself there are also problems with the cooling of the grinding zone, which has the further disadvantage that high-speed grinding is impossible with this known arrangement.
  • the swivel angle of the grinding head depends on the grinding wheel diameter, the grinding wheel width, the workpiece diameter and the length of the workpiece itself. Since the grinding wheel side edges should not be used for grinding, the swivel angle is also dependent on the infeed value and the width of the grinding wheel.
  • a polishing grinding device for round symmetrical and asymmetrical thin-walled workpieces is described, which is characterized in that its movement components correspond approximately to those of a hand grinding polishing, i.e. that is, the workpiece continuously performs an oscillating pivoting movement when the direction of advance of the polishing device changes.
  • a hand grinding polishing i.e. that is, the workpiece continuously performs an oscillating pivoting movement when the direction of advance of the polishing device changes.
  • an inclination from the polishing grinding wheel to the workpiece axis is specified, this inclination obviously only meaning that the workpiece can be polished as intensely as by hand.
  • This publication does not provide any information on creating a clearance angle between a grinding wheel working on the end face and the workpiece and on successively uniform wear of the grinding wheel without having to constantly dress.
  • the object on which the invention is based is to provide a method and a device for high-speed profile grinding of rotationally symmetrical workpieces which are clamped rotatably about their longitudinal axis, each workpiece being able to be ground gently in the shortest possible time and, on the other hand, the grinding wheel gradually being uniformly worn along its circumference in layers can.
  • the device for performing this method with a rotatable with its two ends, clamped in a holder rotationally symmetrical workpiece and a grinding wheel carried by a grinding spindle, which is displaceable along the axis of rotation of the workpiece and radially adjustable according to the desired profile of the workpiece to be ground, which Grinding wheel axis is arranged skewed against the longitudinal axis of the workpiece, characterized in that the device is set so that the grinding wheel has a straight surface line and in the unused state the contact point between the grinding wheel circumference and the finished workpiece diameter is arranged on one side surface of the grinding surface, the effective end face of the grinding wheel lies in the plane of this side surface of the grinding surface.
  • the grinding wheel expediently has a conical or a cylindrical outer surface, the grinding covering advantageously consisting of borazon.
  • the arrangement can also be such that the grinding spindle axis is pivoted and adjusted horizontally and vertically with respect to the longitudinal axis of the workpiece.
  • the main advantage of this proposal according to the invention is that, while reducing the tool costs, the grinding time is reduced considerably with very little heat generation. Aside from being a heat accumulation is avoided in the workpiece, because when using a narrow grinding wheel can be cooled much more concentrated than previously possible, the workpiece is not exposed to extreme radial grinding pressures, because firstly, the active end face of the grinding wheel, which is engaged with the workpiece per unit of time, is relatively small and in addition, a substantial part of the grinding pressure is transmitted in the axial direction.
  • Another advantage is that the grinding wheel covering wears evenly towards one side in the form of a thin layer. It can thus be determined mathematically when a layer has been removed from the circumference of the grinding wheel so that it can subsequently be adjusted. In the event that the grinding tool is provided with a Borazon coating, the service life is significantly increased.
  • FIG. 1 shows a rotationally symmetrical rotating body, namely a workpiece 1, on which a grinding body in the form of a narrow grinding wheel 2 engages.
  • the axis of rotation 2a of this grinding wheel 2 is pivoted horizontally against the longitudinal axis 4 of the workpiece by an angle ⁇ .
  • a further angle of twist ⁇ is given by vertical pivoting of the grinding wheel axis of rotation 2a against the workpiece axis 4.
  • the inclination of the grinding wheel to the workpiece during grinding is explained more clearly below with reference to FIGS. 3 and 4.
  • the grinding wheel 1 which has a substantially straight lateral surface, engages at an angle on the circumference of the workpiece, from which a certain part of the circumference is to be ground in accordance with the grinding depth s.
  • an inclined surface F is formed with which the grinding wheel engages the part L of the workpiece to be removed, while due to the special arrangement of the grinding wheel relative to the workpiece, a (not shown recognizable) clearance angle between the straight surface line of the grinding wheel and the finished ground peripheral surface U of the workpiece 1 is present, so that once the circumference U is finished, it does not come into contact with the grinding wheel. While a considerable part of the pressure of the grinding wheel is derived in the axial direction via the line L according to FIG.
  • the radially directed grinding force component acts on the workpiece only at the point which is denoted by 1a in FIGS. 5 to 7.
  • the end face F migrates during the further grinding against the feed direction of the grinding wheel towards the free edge of the wheel, as is illustrated in FIG. 4, in which the grinding wheel is 80% worn in the form of a layer.
  • the oblique face of the grinding wheel is designated F1.
  • 5 to 7 schematically show a simplified representation of the wear of the grinding wheel, in which the clearance angle formed between the straight surface line M of the grinding wheel 2 and the circumferential line U of the workpiece 1 of the diameter of the workpiece 1 that has already been ground is not shown.
  • the grinding wheel 2 acts with its oblique end face F against the processing layer B of the workpiece 1 in accordance with the desired grinding depth S.
  • the arrows indicate the radial infeed and the axial movement of the grinding wheel 2 relative to the workpiece 1.
  • 5 to 7 not only is the diameter of the workpiece 1 reduced by twice the grinding depth, but the grinding wheel 2 gradually wears out in the form of a layer which corresponds to the grinding depth S during the grinding process.
  • the wear of the grinding wheel takes place evenly in the form of a layer S corresponding to the grinding depth, so that as long as this layer has not yet been completely removed, the grinding wheel also does not need to be adjusted or readjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Detergent Compositions (AREA)
  • Paper (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP85102261A 1984-09-26 1985-02-28 Verfahren und Vorrichtung zum Hochgeschwindigkeits-Profilschleifen von rotationssymmetrischen Werkstücken Expired - Lifetime EP0176654B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102261T ATE78204T1 (de) 1984-09-26 1985-02-28 Verfahren und vorrichtung zum hochgeschwindigkeits-profilschleifen von rotationssymmetrischen werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3435313 1984-09-26
DE3435313A DE3435313C2 (de) 1984-03-15 1984-09-26 Vorrichtung zum Außenrundschleifen

Publications (3)

Publication Number Publication Date
EP0176654A2 EP0176654A2 (de) 1986-04-09
EP0176654A3 EP0176654A3 (en) 1987-09-09
EP0176654B1 true EP0176654B1 (de) 1992-07-15

Family

ID=6246408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102261A Expired - Lifetime EP0176654B1 (de) 1984-09-26 1985-02-28 Verfahren und Vorrichtung zum Hochgeschwindigkeits-Profilschleifen von rotationssymmetrischen Werkstücken

Country Status (7)

Country Link
EP (1) EP0176654B1 (cs)
AT (1) ATE78204T1 (cs)
BR (1) BR8501203A (cs)
CS (1) CS272205B2 (cs)
DD (1) DD232863A5 (cs)
ES (1) ES8605705A1 (cs)
SU (1) SU1452466A3 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3731292A1 (de) * 1987-09-17 1989-04-13 Erwin Junker Vorrichtung zum innenrundschleifen
EP0346425B1 (de) * 1987-12-23 1994-05-18 Fortuna-Werke Maschinenfabrik GmbH Verfahren zum abrichten einer schleifscheibe
CN102756308A (zh) * 2012-06-29 2012-10-31 重庆恒博机械制造有限公司 一种用于细长轴类工件的磨床

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1394704A (en) * 1918-12-10 1921-10-25 Walter C Barnhart Pulley-grinding machine
US1968550A (en) * 1930-05-28 1934-07-31 Black Rock Mfg Company Rubber roller grinding machine
GB692686A (en) * 1951-02-12 1953-06-10 Crucible Steel Co America Improvements in or relating to a gauge adjusting and regulating apparatus for grinding and polishing machines
GB986427A (en) * 1961-07-13 1965-03-17 Eugene Fouquet High-performance grinding process, more particularly for the machining of metals of all degrees of hardness
GB991213A (en) * 1963-03-07 1965-05-05 Crabtree & Co Ltd J A Improvements in the grinding of metal surfaces
DE1269002B (de) * 1965-09-22 1968-05-22 Polysius Gmbh Vorrichtung zum Nachschleifen unrund gewordener Laufringe von Drehtrommeln aller Art
FR2049226A5 (cs) * 1969-06-04 1971-03-26 Inst Sverkltvlrdykh
US3881887A (en) * 1973-12-19 1975-05-06 Mcmaster Harold Apparatus and method for grinding an elongated workpiece
SU852502A1 (ru) * 1978-05-17 1981-08-07 Ленинградский Технологический Институтцеллюлозно-Бумажной Промышленности Станок дл шлифовани поверхностибОчКи ВАлКОВ
JPS55169346U (cs) * 1979-05-25 1980-12-05
JPS5656371A (en) * 1979-10-15 1981-05-18 Osaka Fuji Kogyo Kk Method of grinding inside surface of mold
DE3009294A1 (de) * 1980-03-11 1981-09-17 Fa. Gottlieb Gühring, 7470 Ebingen Verfahren und vorrichtung zur herstellung von werkstuecken mit nadelfoermigen feinzapfen

Also Published As

Publication number Publication date
SU1452466A3 (ru) 1989-01-15
EP0176654A2 (de) 1986-04-09
ES8605705A1 (es) 1986-04-16
DD232863A5 (de) 1986-02-12
ATE78204T1 (de) 1992-08-15
BR8501203A (pt) 1985-11-12
ES541094A0 (es) 1986-04-16
CS272205B2 (en) 1991-01-15
EP0176654A3 (en) 1987-09-09
CS175585A2 (en) 1985-08-15

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