EP0497008B1 - Process and apparatus for grinding cams or the like - Google Patents
Process and apparatus for grinding cams or the like Download PDFInfo
- Publication number
- EP0497008B1 EP0497008B1 EP91122370A EP91122370A EP0497008B1 EP 0497008 B1 EP0497008 B1 EP 0497008B1 EP 91122370 A EP91122370 A EP 91122370A EP 91122370 A EP91122370 A EP 91122370A EP 0497008 B1 EP0497008 B1 EP 0497008B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- wheel
- roughing
- groove
- dimension
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 12
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 241000549194 Euonymus europaeus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
- B24B19/12—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
Definitions
- the invention relates to a method and a device for grinding cams or the like. With the features specified in the preamble of claim 1 and claim 3, respectively.
- the pre-grinding wheel is designed as an interchangeable grinding wheel that can be removed from the grinding spindle.
- This interchangeable grinding wheel is provided with profiles to break the edges of the cams during pre-grinding.
- the pre-grinding wheel is not moved laterally, but the cam contour is pre-ground by a single insert grinding and then the interchangeable grinding wheel decreased.
- a different pre-grinding wheel is required for each cam width or chamfer shape.
- the invention is therefore based on the object of avoiding these disadvantages and of specifying a grinding method or a grinding device, in particular a targeted cooling of the grinding zone being possible during the pre-grinding.
- the formation of the pre-grinding wheel with at least one radially circumferential groove on the outer circumference ensures that the entire circumferential surface of the cam is not machined at once. This entails a reduction in heating, which also contributes to the fact that a coolant can be introduced to the webs remaining in the grooves during grinding. High cutting speeds and an increased machining volume per unit of time are therefore possible, i.e. The feed rate and depth of cut can be increased so that changes in structure or grinding cracks in the workpiece can be ruled out even with high-speed machining. This enables faster and therefore more economical grinding.
- a further advantageous embodiment of the method according to claim 1 is the subject of claim 2. Further embodiments of the device according to claim 3 are the subject of claims 4 to 7.
- the pre-grinding wheel 1 is wider than the cam 3 and has two radial annular grooves 4 on the outer circumference. These grooves 4 become wider towards the inside, so that between the flanks of the grooves 4 and the webs 7 which remain during grinding, there are clearance angles into which coolant is supplied. The actual grinding area does not go over the entire cam width. This can be seen in particular from FIG. 4, where it is shown that a galvanically applied grinding layer 9 is interrupted by the grooves 4.
- This grinding wheel can also be designed with a metal-bonded CBN grinding surface.
- FIG. 7 Another possibility of executing the pre-grinding wheel is shown in FIG. 7.
- the abrasive coating protrudes somewhat beyond the groove side surface, so that the grooves 4 that run radially on the outer circumference can be made with the same width down to the groove base.
- the chamfer 8 on the left of the cam 3 in the picture is simultaneously ground.
- the pre-grinding wheel 1 has projecting edges 5 and 6, which are freely triangular in cross section according to FIG. 2 or 3 and are approximately triangular in cross section and whose inclination corresponds to the desired profiling of the chamfers 8.
- the pre-grinding can be completed after a single axial displacement of the pre-grinding wheel 1. However, other grinding cycles can also be connected if required. In any case, the movement of the pre-grinding wheel is repeated until the finished pre-grinding dimension is reached. Each grinding process takes place with one full or several workpiece revolutions.
- the cam 3 is finished by the finish grinding wheel 2. This is shown in Fig. 1.
- the outer circumference of the finished grinding wheel 2 has the finished profile shape of the cam 3.
- the finish grinding wheel 2 has a cylindrical outer circumference. But it is easily possible that the finish grinding wheel 2 is also used for grinding oblique or spherical cams; it then only has to have an appropriate profile shape.
- the finish grinding wheel can have a different grain and bond than the pre-grinding wheel in order to obtain the desired surface and to influence the grinding parameters in a targeted manner.
- the finishing grinding wheel can have a very simple profile shape. Furthermore, no lateral forces on the finish grinding wheel or the workpiece occur during finish grinding, which can negatively influence the working accuracy, ie the grinding wheel or the camshaft are only loaded radially.
- Fig. 5 it is shown that a cam 3 is finish-ground while the adjacent cam still has the raw cast surface.
- the pre-grinding wheel 1 is about to be used for the first time. The result of this use corresponds to the situation shown in FIG. 2.
- both grinding wheels 1 and 2 are mounted on a common spindle. This enables the cam 3 to be pre-ground and finished in one setting.
- the cams are arranged very close to one another, it is not possible to work with grinding wheels 1 and 2 mounted on a spindle. In such a case, the grinding wheels 1 and 2 are arranged opposite one another on the camshaft; see Fig. 6. Two grinding spindles must be provided here.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Schleifen von Nocken oder dgl. mit den im Oberbegriff des Anspruchs 1 bzw. des Anspruchs 3 angegebenen Merkmalen.The invention relates to a method and a device for grinding cams or the like. With the features specified in the preamble of
Bei einem bekannten Verfahren bzw. einer bekannten Vorrichtung dieser Art (DE 37 24 698 A1) ist die Vorschleifscheibe als von der Schleifspindel abnehmbare Wechselschleifscheibe ausgebildet. Diese Wechselschleifscheibe ist mit Profilierungen versehen, um beim Vorschleifen die Kanten der Nocken zu brechen. Beim Schleifablauf wird die Vorschleifscheibe nicht seitlich versetzt, sondern es wird durch einmaliges Einsteckschleifen die Nockenkontur vorgeschliffen und dann die Wechselschleifscheibe abgenommen. Für jede Nockenbreite bzw. für jede Fasenform ist eine andere Vorschleifscheibe notwendig. Beim Vorschleifen ist zwischen Schleifscheibe und Werkstück eine große Berührungsfläche vorhanden, zu der kein Kühlmittel gelangen kann. Dies führt dazu, daß die Vorschubgeschwindigkeit relativ niedrig gehalten werden muß, weil beim Erhöhen der Vorschubgeschwindigkeit oder beim Erhöhen des Zerspanvolumens pro Zeiteinheit (Spantiefe) sich das Werkstück zu stark erwärmen würde. Dies führt zu Schleifrissen in der Oberfläche oder sogar zu Gefügeänderungen im Werkstück, was natürlich unerwünscht ist. Auch für die immer öfter eingesetzten neuen Materialien, insbesondere z.B. Hartschalenguß oder Werkstoffe, die ganz andere Eigenschaften beim Zerspanen aufweisen als die bisher üblichen Materialien, ist das bekannte Schleifen nur bedingt erfolgreich einzusetzen.In a known method or a known device of this type (DE 37 24 698 A1), the pre-grinding wheel is designed as an interchangeable grinding wheel that can be removed from the grinding spindle. This interchangeable grinding wheel is provided with profiles to break the edges of the cams during pre-grinding. During the grinding process, the pre-grinding wheel is not moved laterally, but the cam contour is pre-ground by a single insert grinding and then the interchangeable grinding wheel decreased. A different pre-grinding wheel is required for each cam width or chamfer shape. When pre-grinding, there is a large contact surface between the grinding wheel and the workpiece, to which no coolant can get. This means that the feed rate must be kept relatively low because the workpiece would heat up too much if the feed rate was increased or the machining volume increased per unit of time (depth of cut). This leads to grinding cracks in the surface or even structural changes in the workpiece, which is of course undesirable. Known grinding can also be used only to a limited extent for the new materials that are being used more and more frequently, in particular, for example, hard shell castings or materials that have completely different properties during machining than the materials previously used.
Auch gemäß der US 3 019 562 und der JP Abstract 54-83195 wird mit zwei Schleifscheiben gearbeitet. Dabei erfolgt das Vorschleifen mit einer Vorschleifscheibe mit zylindrischer Schleiffläche, und wenn nach einer oder mehreren Werkstückumdrehungen das Fertigvorschleifmaß erreicht ist, wird die Außenfläche des Nockens mittels einer eigenen Fertigschleifscheibe fertiggeschliffen. Die im Zusammenhang mit der DE 37 24 698 A1 vorstehend erwähnten, mit einer zu starken Erwärmung verbundenen Nachteile treten auch hier auf.According to US 3,019,562 and JP Abstract 54-83195, two grinding wheels are used. The pre-grinding is carried out with a pre-grinding wheel with a cylindrical grinding surface, and when the finished pre-grinding dimension is reached after one or more workpiece rotations, the outer surface of the cam is finish-ground using its own finished grinding wheel. The disadvantages mentioned above in connection with DE 37 24 698 A1, which are associated with excessive heating, also occur here.
Der Erfindung liegt daher die Aufgabe zu Grunde, diese Nachteile zu vermeiden und ein Schleifverfahren bzw. eine Schleifvorrichtung anzugeben, wobei insbesondere eine gezielte Kühlung der Schleifzone während des Vorschleifens möglich ist.The invention is therefore based on the object of avoiding these disadvantages and of specifying a grinding method or a grinding device, in particular a targeted cooling of the grinding zone being possible during the pre-grinding.
Die Lösung dieser Aufgabe wird verfahrensmäßig durch die im Anspruch 1 angegebenen Merkmale, vorrichtungsmäßig durch die im Anspruch 3 angegebenen Merkmale erreicht.This object is achieved procedurally by the features specified in
Durch die Ausbildung der Vorschleifscheibe mit mindestens einer radial umlaufenden Nut am Außenumfang wird erreicht, daß nicht die gesamte Umfangsfläche des Nockens auf einmal bearbeitet wird. Das bringt eine Verringerung der Erwärmung mit sich, wozu auch noch beiträgt, daß beim Schleifen an die in den Nuten stehenbleibenden Stege ein Kühlmittel herangeführt werden kann. Es sind deshalb hohe Schnittgeschwindigkeiten und ein erhöhtes Zerspanvolumen pro Zeiteinheit möglich, d.h. Vorschubgeschwindigkeit und Schnittiefe lassen sich erhöhen, so daß auch bei einer Hochgeschwindigkeitsbearbeitung Gefügeänderungen oder Schleifrisse im Werkstück auszuschließen sind. Dadurch ist ein schnelleres und damit auch kostengünstigeres Schleifen möglich.The formation of the pre-grinding wheel with at least one radially circumferential groove on the outer circumference ensures that the entire circumferential surface of the cam is not machined at once. This entails a reduction in heating, which also contributes to the fact that a coolant can be introduced to the webs remaining in the grooves during grinding. High cutting speeds and an increased machining volume per unit of time are therefore possible, i.e. The feed rate and depth of cut can be increased so that changes in structure or grinding cracks in the workpiece can be ruled out even with high-speed machining. This enables faster and therefore more economical grinding.
Eine weitere vorteilhafte Ausbildung des Verfahrens nach Anspruch 1 ist Gegenstand des Anspruchs 2. Weitere Ausbildungen der Vorrichtung nach Anspruch 3 sind Gegenstand der Ansprüche 4 bis 7.A further advantageous embodiment of the method according to
Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigt:
- Fig. 1
- eine erfindungsgemäß ausgebildete Vorrichtung beim Feinschleifen eines Nockens;
- Fig. 2
- die Vorschleifscheibe beim Einstechschleifen;
- Fig. 3
- das Fertigvorschleifen eines Nockens nach dem axialen Versetzen der Vorschleifscheibe;
- Fig. 4
- einen Querschnitt durch die Schleiffläche der Vorschleifscheibe;
- Fig. 5
- die Vorrichtung vor dem Beginn des Vorschleifens, nachdem ein benachbarter Nocken feingeschliffen wurde;
- Fig. 6
- eine abgeänderte Ausführungsform mit einander gegenüberliegenden Schleifscheiben;
- Fig. 7
- eine abgeänderte Ausführungsform der radial am Außenumfang der Schleifscheibe umlaufenden Nuten.
- Fig. 1
- a device designed according to the invention during the fine grinding of a cam;
- Fig. 2
- the pre-grinding wheel when plunge grinding;
- Fig. 3
- pre-grinding a cam after axially displacing the pre-grinding wheel;
- Fig. 4
- a cross section through the grinding surface of the pre-grinding wheel;
- Fig. 5
- the device before the start of pre-grinding after an adjacent cam has been ground;
- Fig. 6
- a modified embodiment with opposing grinding wheels;
- Fig. 7
- a modified embodiment of the radially circumferential grooves on the outer circumference of the grinding wheel.
In Fig. 2 ist dargestellt, wie ein Nocken 3 im Einstechverfahren vorgeschliffen wird. Die Vorschleifscheibe 1 ist breiter als der Nocken 3 und weist zwei radiale ringförmige Nuten 4 am Außenumfang auf. Diese Nuten 4 werden nach innen breiter, so daß zwischen den Flanken der Nuten 4 und den beim Schleifen stehenbleibenden Stegen 7 Freiwinkel entstehen, in welche Kühlmittel zugeführt wird. Die eigentliche Schleiffläche geht nicht über die ganze Nockenbreite. Dies ist insbesondere aus Fig. 4 ersichtlich, wo dargestellt ist, daß eine galvanisch aufgebrachte Schleifschicht 9 durch die Nuten 4 unterbrochen ist. Diese Schleifscheibe kann auch mit metallgebundenem CBN-Schleifbelag ausgeführt sein.2 shows how a
Eine weitere Möglichkeit der Ausführung der Vorschleifscheibe ist in Fig. 7 gezeigt. Hier ist der Schleifbelag etwas über die Nutseitenfläche hineinragend ausgeführt, dadurch können die radial am Außenumfang umlaufenden Nuten 4 in gleicher Breite bis auf den Nutgrund ausgeführt werden. Durch diese Ausführung können dieselben Vorteile wie bei der Ausführung nach Fig. 4 erzielt werden.Another possibility of executing the pre-grinding wheel is shown in FIG. 7. Here, the abrasive coating protrudes somewhat beyond the groove side surface, so that the
Beim Schleifen gemäß Fig. 2 wird gleichzeitig die im Bild linke Fase 8 des Nockens 3 geschliffen. Zu diesem Zweck hat die Vorschleifscheibe 1 vorspringende Ränder 5 und 6, die im Querschnitt frei wählbar nach Fig. 2 oder 3 im Querschnitt etwa dreieckig sind und deren Neigung der erwünschten Profilierung der Fasen 8 entspricht.2, the chamfer 8 on the left of the
Wie aus Fig. 2 ersichtlich ist, sind wegen der gegenüber dem Nocken 3 größeren Breite der Vorschleifscheibe 1 der rechte Rand 6 und ein benachbarter Bereich der Schleiffläche nicht im Eingriff mit dem Nocken 3. Ist das Vorschleifen soweit fortgeschritten, daß die Stege 7 in die Nuten 4 um ein gewisses Maß eindringen, dann wird die Vorschleifscheibe 1 axial versetzt eingesetzt. Es werden jetzt die Stege 7, die nunmehr in ihrer Lage gegenüber den Nuten 4 versetzt sind, abgeschliffen, wobei gleichzeitig das Schleifen der rechten Fase 8 durch den Rand 6 erfolgt. Der Zustand, der nach diesem Vorgehen nach radialer Zustellung der Schleifscheibe erreicht ist, ist in Fig. 3 dargestellt.As can be seen from Fig. 2, due to the larger width of the
Das Vorschleifen kann schon nach einem einmaligen axialen Versetzen der Vorschleifscheibe 1 beendet sein. Es können aber bei Bedarf auch noch weitere Schleifzyklen angeschlossen werden. Jedenfalls wird das Versetzen der Vorschleifscheibe so oft wiederholt, bis das Fertigvorschleifmaß erreicht ist. Jeder Schleifvorgang erfolgt dabei bei einer vollen oder mehreren Werkstückumdrehungen.The pre-grinding can be completed after a single axial displacement of the
Wenn das Fertigvorschleifmaß erreicht ist, wird der Nocken 3 von der Fertigschleifscheibe 2 fertig bearbeitet. Dies ist in Fig. 1 dargestellt. Der Außenumfang der Fertigschleifscheibe 2 weist dabei die Fertigprofilform des Nockens 3 auf. In Fig. 3 hat die Fertigschleifscheibe 2 einen zylindrischen Außenumfang. Es ist aber ohne weiteres möglich, daß die Fertigschleifscheibe 2 auch zum Schleifen von schrägen oder balligen Nocken herangezogen wird; sie muß dann nur eine entsprechende Profilform haben.When the finish pre-grinding dimension has been reached, the
Die Fertigschleifscheibe kann eine andere Körnung und Bindung aufweisen als die Vorschleifscheibe, um die gewünschte Oberfläche zu erhalten und die Schleifparameter gezielt zu beeinflussen. Durch das Fertigschleifen der beiden Fasen 8 während des Vorschleifens mit der Vorschleifscheibe kann die Fertigschleifscheibe eine sehr einfache Profilform aufweisen. Des weiteren treten während des Fertigschleifens keinerlei Querkräfte auf die Fertigschleifscheibe bzw. das Werkstück auf, die die Arbeitsgenauigkeit negativ beeinflussen können, d.h. die Schleifscheibe bzw. die Nockenwelle werden nur noch radial belastet.The finish grinding wheel can have a different grain and bond than the pre-grinding wheel in order to obtain the desired surface and to influence the grinding parameters in a targeted manner. By the Finishing the two chamfers 8 during the pre-grinding with the pre-grinding wheel, the finishing grinding wheel can have a very simple profile shape. Furthermore, no lateral forces on the finish grinding wheel or the workpiece occur during finish grinding, which can negatively influence the working accuracy, ie the grinding wheel or the camshaft are only loaded radially.
In Fig. 5 ist dargestellt, daß ein Nocken 3 fertiggeschliffen ist, während der benachbarte Nocken noch die rohe Gußmantelfläche hat. Die Vorschleifscheibe 1 steht kurz vor dem ersten Einsatz. Das Ergebnis dieses Einsatzes entspricht der in Fig. 2 dargestellten Situation.In Fig. 5 it is shown that a
In den Fig. 1 bis 3 und 5 sind beide Schleifscheiben 1 und 2 auf einer gemeinsamen Spindel montiert. Dies ermöglicht das Vor- und Fertigschleifen des Nockens 3 in einer Aufspannung.1 to 3 and 5, both grinding
Wenn die Nocken sehr eng nebeneinander angeordnet sind, ist es nicht möglich, mit den auf einer Spindel montierten Schleifscheiben 1 und 2 zu arbeiten. In einem solchen Fall sind die Schleifscheiben 1 und 2 einander gegenüberliegend an der Nockenwelle angeordnet; vergl. Fig. 6. Es müssen hier zwei Schleifspindeln vorgesehen werden.If the cams are arranged very close to one another, it is not possible to work with grinding
Claims (7)
- Method for grinding the outer contour of cams and the like in which the cam (3) is rough-ground by means of a roughing wheel in a plunge cut to a prescribed roughing dimension and is then finish-ground by a finishing wheel,
characterized in that
grinding said cam (3) to said roughing dimension is done by a roughing wheel (1) having at least one radial circumferential groove (4), said roughing wheel (1) being used after a first plunge cut for at least one further plunge cut by said roughing wheel (1) being displaced at least by the dimension of the groove in the axial direction of said grinding wheel. - Method according to claim 1, characterized in that said finished roughing dimension is attained by at least one revolution of the workpiece.
- Means for implementing the method according to claim 1 or 2, using a roughing wheel (1) and a finishing wheel (2), characterized by the following featuresa) at least one radial circumferential groove (4) is provided on the outer circumference of said roughing wheel (1),b) the grinding coating (5,6) applied to the roughing wheel (1) is interrupted by the groove(s) (4),c) the width of said roughing wheel (1) is greater than the axial dimension of the cam (3),d) the means comprises means for an axial displacement of the roughing wheel (1) at least by the dimension of the groove width.
- Means according to claim 3, characterized in that the grinding surface of the roughing wheel (1) is electroplated or metal-cemented with a CBN coating.
- Means according to claim 3 or 4, characterized in that the radial circumferential groove(s) (4) is/are symmetrical in the cross-section of said roughing wheel (1).
- Means according to one of the claims 3 to 5, characterized in that the groove(s) feature(s) a rectangular cross-section and said grinding coating (6) on the active surface of said roughing wheel (1) protrudes past the groove edge.
- Means according to one of the claims 3 to 5, characterized in that said groove(s) (4) feature(s) a dovetail shaped cross-section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4103090A DE4103090C1 (en) | 1991-02-01 | 1991-02-01 | |
| DE4103090 | 1991-02-01 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0497008A2 EP0497008A2 (en) | 1992-08-05 |
| EP0497008A3 EP0497008A3 (en) | 1992-11-25 |
| EP0497008B1 true EP0497008B1 (en) | 1994-04-27 |
Family
ID=6424209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91122370A Expired - Lifetime EP0497008B1 (en) | 1991-02-01 | 1992-01-01 | Process and apparatus for grinding cams or the like |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US5259150A (en) |
| EP (1) | EP0497008B1 (en) |
| JP (1) | JP2826010B2 (en) |
| KR (1) | KR0172972B1 (en) |
| CA (1) | CA2060149A1 (en) |
| DE (1) | DE4103090C1 (en) |
| ES (1) | ES2053267T3 (en) |
| RU (1) | RU2043906C1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437907B4 (en) * | 1994-10-22 | 2006-04-13 | Audi Ag | Method for grinding the outer contour of a workpiece |
| DE19511881B4 (en) * | 1995-03-31 | 2009-06-10 | Audi Ag | Method for grinding the outer contour of a workpiece |
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| GB2346574B (en) * | 1999-02-03 | 2001-09-19 | Unova Uk Ltd | Angle head grinding method and apparatus |
| JP3649037B2 (en) * | 1999-04-14 | 2005-05-18 | 豊田工機株式会社 | Compound grinding machine |
| CA2383908A1 (en) * | 1999-10-27 | 2001-05-03 | Unova U.K. Limited | Constant spindle power grinding method |
| DE10234707B4 (en) * | 2002-07-30 | 2007-08-02 | Erwin Junker Maschinenfabrik Gmbh | Method and device for grinding a rotationally symmetrical machine component |
| JP4007225B2 (en) * | 2003-03-28 | 2007-11-14 | 株式会社ジェイテクト | Grinding method |
| DE50309740D1 (en) | 2003-11-12 | 2008-06-12 | Erwin Junker Grinding Technolo | Shared grinding tool |
| JP5276250B2 (en) * | 2005-03-10 | 2013-08-28 | 日立オートモティブシステムズ株式会社 | Internal combustion engine cam |
| US7536935B2 (en) * | 2005-04-07 | 2009-05-26 | Pro-Cut Licensing Company, Llc | Brake rotor resurfacing |
| DE102005021788B4 (en) * | 2005-05-11 | 2006-12-28 | Krüger, Hermann, Prof. Dr.-Ing. | Method and device for producing a three-dimensional cam and three-dimensional cams, in particular for the variable actuation of lift valves in internal combustion engines |
| DE102005056998B4 (en) * | 2005-11-30 | 2008-12-24 | Audi Ag | Apparatus for processing a rotating body |
| JP2009154262A (en) * | 2007-12-27 | 2009-07-16 | Musashi Seimitsu Ind Co Ltd | Grinding device |
| JP5167920B2 (en) * | 2008-04-11 | 2013-03-21 | 株式会社ジェイテクト | Grinding machine and grinding method |
| DE102009047913A1 (en) * | 2009-09-22 | 2011-03-31 | Schaudt Mikrosa Gmbh | Grinding machine for grinding workpieces |
| DE202009014739U1 (en) * | 2009-10-20 | 2011-03-10 | Schaudt Mikrosa Gmbh | Grinding machine with two spindle sets |
| DE102009051586A1 (en) * | 2009-10-20 | 2011-04-28 | Schaudt Mikrosa Gmbh | Grinding machine for grinding and deburring |
| CN102452030B (en) * | 2010-10-27 | 2016-07-06 | 株式会社捷太格特 | Method for grinding, grinding system and Multi-function grinding lathe |
| KR101485923B1 (en) * | 2013-03-12 | 2015-01-26 | (주)대동씨엠 | apparatus and method for removing burr from cam shaft |
| DE102016204273B4 (en) * | 2016-03-15 | 2023-11-30 | Erwin Junker Maschinenfabrik Gmbh | METHOD FOR COMPLETE GRINDING OF WAVE-SHAPED WORKPIECES WITH CYLINDRICAL AND PROFILED SECTIONS |
| CN106863062B (en) * | 2017-02-23 | 2018-09-11 | 哈尔滨工业大学 | A kind of hemispherical finishing grinding wheel for Ultra-precision Turning |
| CN114346884B (en) * | 2022-03-17 | 2022-05-27 | 徐州瑞达装备制造有限公司 | High strength fastener manufacturing is with burnishing and polishing device |
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| DE3011454C2 (en) * | 1980-03-25 | 1984-04-05 | Ernst Thielenhaus KG, 5600 Wuppertal | Process for finishing camshafts |
| JPS58177260A (en) * | 1982-04-08 | 1983-10-17 | Toyoda Mach Works Ltd | Interference checking device for machine tool |
| JPS58192743A (en) * | 1982-04-29 | 1983-11-10 | Toyoda Mach Works Ltd | Cam grinding method |
| BR8303942A (en) * | 1982-07-23 | 1984-02-28 | Honda Motor Co Ltd | CAM CRUSHING MACHINE |
| DE3305034A1 (en) * | 1983-02-14 | 1984-08-16 | Erwin 7611 Nordrach Junker | METHOD AND DEVICE FOR PRODUCING A THREADING TOOL |
| JPS59232760A (en) * | 1983-06-16 | 1984-12-27 | Nissan Motor Co Ltd | Grinding method of cam for internal-combustion engine |
| US4624610A (en) * | 1983-06-27 | 1986-11-25 | J. D. Phillips Corporation | Milling machine |
| US4930265A (en) * | 1984-08-28 | 1990-06-05 | Schaudt Maschinenbau Gmbh | Thread grinding method and machine |
| DE3626683A1 (en) * | 1986-08-07 | 1988-02-18 | Uni Cardan Ag | METHOD AND DEVICE FOR FINISHING CAMSHAFT |
| DE8629226U1 (en) * | 1986-11-03 | 1986-12-18 | Wernicke & Co GmbH, 40231 Düsseldorf | Turning tool for edge processing of spectacle lens edges |
| DE3702594C3 (en) * | 1987-01-29 | 1995-04-06 | Fortuna Werke Maschf Ag | Method and device for grinding cams on camshafts |
| JPS63127873U (en) * | 1987-02-10 | 1988-08-22 | ||
| FR2611560B1 (en) * | 1987-03-05 | 1992-10-02 | Briot Int | IMPROVEMENTS IN GRINDING AND BEVELING MACHINES FOR OPHTHALMIC LENSES |
| DE3724698A1 (en) * | 1987-07-25 | 1989-02-02 | Schaudt Maschinenbau Gmbh | GRINDING HEAD |
| EP0342528A3 (en) * | 1988-05-19 | 1991-04-17 | Fortuna-Werke Maschinenfabrik GmbH | Method of grinding the cams of a camshaft |
| US5024026A (en) * | 1989-07-17 | 1991-06-18 | American Saw & Mfg. Company | Segmental grinding wheel |
-
1991
- 1991-02-01 DE DE4103090A patent/DE4103090C1/de not_active Expired - Lifetime
-
1992
- 1992-01-01 ES ES91122370T patent/ES2053267T3/en not_active Expired - Lifetime
- 1992-01-01 EP EP91122370A patent/EP0497008B1/en not_active Expired - Lifetime
- 1992-01-23 US US07/824,437 patent/US5259150A/en not_active Expired - Lifetime
- 1992-01-28 KR KR1019920001223A patent/KR0172972B1/en not_active IP Right Cessation
- 1992-01-28 CA CA002060149A patent/CA2060149A1/en not_active Abandoned
- 1992-01-29 JP JP4013976A patent/JP2826010B2/en not_active Expired - Lifetime
- 1992-01-31 RU SU925010832A patent/RU2043906C1/en active
- 1992-12-23 US US07/997,273 patent/US5274961A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437907B4 (en) * | 1994-10-22 | 2006-04-13 | Audi Ag | Method for grinding the outer contour of a workpiece |
| DE19511881B4 (en) * | 1995-03-31 | 2009-06-10 | Audi Ag | Method for grinding the outer contour of a workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| US5259150A (en) | 1993-11-09 |
| KR0172972B1 (en) | 1999-02-18 |
| RU2043906C1 (en) | 1995-09-20 |
| KR920016192A (en) | 1992-09-24 |
| ES2053267T3 (en) | 1994-07-16 |
| JP2826010B2 (en) | 1998-11-18 |
| DE4103090C1 (en) | 1992-08-27 |
| EP0497008A3 (en) | 1992-11-25 |
| EP0497008A2 (en) | 1992-08-05 |
| JPH0542470A (en) | 1993-02-23 |
| CA2060149A1 (en) | 1992-08-02 |
| US5274961A (en) | 1994-01-04 |
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