EP0176654A2 - Procédé et dispositif pour rectifier à grande vitesse des profils de pièces à symétrie de révolution - Google Patents

Procédé et dispositif pour rectifier à grande vitesse des profils de pièces à symétrie de révolution Download PDF

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Publication number
EP0176654A2
EP0176654A2 EP85102261A EP85102261A EP0176654A2 EP 0176654 A2 EP0176654 A2 EP 0176654A2 EP 85102261 A EP85102261 A EP 85102261A EP 85102261 A EP85102261 A EP 85102261A EP 0176654 A2 EP0176654 A2 EP 0176654A2
Authority
EP
European Patent Office
Prior art keywords
workpiece
grinding wheel
grinding
ground
axis
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.)
Granted
Application number
EP85102261A
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German (de)
English (en)
Other versions
EP0176654B1 (fr
EP0176654A3 (en
Inventor
Erwin Junker
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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/fr
Publication of EP0176654A3 publication Critical patent/EP0176654A3/de
Application granted granted Critical
Publication of EP0176654B1 publication Critical patent/EP0176654B1/fr
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Expired - Lifetime 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
    • 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 clamped in a grinding machine so as to be rotatable about their longitudinal axis, a grinding wheel being advanced along the axis of rotation of the workpiece and being radially adjusted according to the peripheral profile to be ground.
  • 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 machining time, which increases the workpiece costs accordingly.
  • the object on which the invention is based is to provide a method and a device for high-speed cylindrical or rotary grinding of rotationally symmetrical workpieces which are clamped 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 successively lengthwise in layers their circumference can wear evenly.
  • This object is achieved in a method of the type outlined above in such a way that the grinding wheel grinding on the end face is guided against the workpiece surface to be machined with an essentially flat surface line in such a way that the grinding wheel during the grinding process only reaches the circumference of the workpiece in the area of its finished (smallest) diameter touches a point on the perpendicular to the longitudinal axis of the workpiece, the surface line of the grinding wheel including the ground workpiece surface at a clearance angle so that the adjacent finished ground surface is no longer covered by the grinding wheel.
  • the grinding machine for performing this method with a rotationally symmetrical workpiece clamped with its two ends in a holder and a grinding wheel carried and driven by a grinding spindle, which can be moved along the axis of rotation of the workpiece and in accordance with the desired grinding Profile of the grinding piece is radially adjustable, is designed so that the grinding wheel has a substantially flat surface line and that the grinding wheel is arranged obliquely with respect to the workpiece.
  • This arrangement is expediently created in that the grinding wheel jacket is cylindrical and the axis of the grinding wheel forms an angle greater than 0 with the longitudinal axis of the workpiece.
  • the axes of the grinding wheel, which has a conical outer surface, and of the workpiece are advantageously arranged skew to one another.
  • 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 expression "essentially flat lateral surface" is also intended to include the surfaces which run in a straight line or have a large radius.
  • 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. Apart from the fact that heat build-up in the workpiece is avoided, because when using a flat grinding wheel it is possible to cool down much more concentrated than previously possible, the workpiece does not become ex exposed to radial grinding pressures because, firstly, the active area of the grinding wheel engaged with the workpiece per unit of time is relatively small and, moreover, a substantial part of the grinding pressures is transmitted in the axial direction.
  • 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.
  • 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 by an angle ⁇ against the workpiece longitudinal axis 4.
  • a further twist angle ⁇ 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 flat 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 wheel 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 clearance angle (not shown) between the straight jacket line 11 of the grinding wheel and the finished ground peripheral surface U of the workpiece 1 is present, so that once the circumference U has been completely ground, 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. 6 to 8.
  • 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 illustrated in FIG. 4, in which the grinding wheel is already 80% worn in the form of a layer.
  • the oblique face of the grinding wheel is labeled F1.
  • FIGS. 6 to 8 schematically show a simplified representation of the wear of the grinding wheel, in which the clearance angle shown 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 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 indicated relative to the workpiece 1.
  • the grinding process according to FIGS. 6 to 8 not only is the diameter of the workpiece 1 reduced by twice the grinding depth, but the grinding wheel 2 gradually wears out during the grinding process in the form of a layer which corresponds to the grinding depth S.
  • the wear of the grinding wheel thus takes place uniformly 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 does not need to be refurbished or reloaded.
  • FIG. 5 One possibility of profile grinding is shown in FIG. 5, in which the skewed arrangement of grinding wheel axis of rotation 2a and workpiece longitudinal axis 4 is emphasized.
  • a grinding machine numerically controlled via a programmable computer is used, the axial feed of the grinding wheel and its radial feed also being controlled by a computer program.
  • This enables a very precise guidance of the grinding wheel in accordance with the desired profile, so that the profile shown as an exemplary embodiment in FIG. 5 can be worked on the workpiece circumference in a technically not complex manner.

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)
  • 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)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP85102261A 1984-09-26 1985-02-28 Procédé et dispositif pour rectifier à grande vitesse des profils de pièces à symétrie de révolution Expired - Lifetime EP0176654B1 (fr)

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 true EP0176654A2 (fr) 1986-04-09
EP0176654A3 EP0176654A3 (en) 1987-09-09
EP0176654B1 EP0176654B1 (fr) 1992-07-15

Family

ID=6246408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102261A Expired - Lifetime EP0176654B1 (fr) 1984-09-26 1985-02-28 Procédé et dispositif pour rectifier à grande vitesse des profils de pièces à symétrie de révolution

Country Status (7)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225264A (en) * 1987-09-17 1990-05-30 Erwin Junker Internal grinding
EP0346425B1 (fr) * 1987-12-23 1994-05-18 Fortuna-Werke Maschinenfabrik GmbH Procede de taillage de meules
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

Citations (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 (fr) * 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
JPS5656371A (en) * 1979-10-15 1981-05-18 Osaka Fuji Kogyo Kk Method of grinding inside surface of mold
SU852502A1 (ru) * 1978-05-17 1981-08-07 Ленинградский Технологический Институтцеллюлозно-Бумажной Промышленности Станок дл шлифовани поверхностибОчКи ВАлКОВ
DE3009294A1 (de) * 1980-03-11 1981-09-17 Fa. Gottlieb Gühring, 7470 Ebingen Verfahren und vorrichtung zur herstellung von werkstuecken mit nadelfoermigen feinzapfen
US4306382A (en) * 1979-05-25 1981-12-22 Ueda Giken Co. Ltd. Grinding machine

Patent Citations (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 (fr) * 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
US4306382A (en) * 1979-05-25 1981-12-22 Ueda Giken Co. Ltd. Grinding machine
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

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 116 (M-80)[788], 25. Juli 1981; & JP-A-56 56 371 (OSAKA FUJI KOGYO K.K.) 18-05-1981 *
SOVIET INVENTIONS ILLUSTRATED, Woche E21, P61 G 2242 E/21, 7. Juli 1982; & SU-A-852 502 *
THE TOOL AND MANUFACTURING ENGINEER, Band 4, Oktober 1966, Seite 16; "40% Cost savings deburring pump rotors with OSBORN power brushing" *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225264A (en) * 1987-09-17 1990-05-30 Erwin Junker Internal grinding
GB2225264B (en) * 1987-09-17 1992-09-09 Erwin Junker Apparatus for internal grinding
EP0346425B1 (fr) * 1987-12-23 1994-05-18 Fortuna-Werke Maschinenfabrik GmbH Procede de taillage de meules
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

Also Published As

Publication number Publication date
BR8501203A (pt) 1985-11-12
ES8605705A1 (es) 1986-04-16
ES541094A0 (es) 1986-04-16
ATE78204T1 (de) 1992-08-15
EP0176654B1 (fr) 1992-07-15
EP0176654A3 (en) 1987-09-09
SU1452466A3 (ru) 1989-01-15
CS175585A2 (en) 1985-08-15
DD232863A5 (de) 1986-02-12
CS272205B2 (en) 1991-01-15

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