EP1514640A2 - Method and apparatus for finishing shafts, especially crank- and camshafts - Google Patents

Method and apparatus for finishing shafts, especially crank- and camshafts Download PDF

Info

Publication number
EP1514640A2
EP1514640A2 EP04020483A EP04020483A EP1514640A2 EP 1514640 A2 EP1514640 A2 EP 1514640A2 EP 04020483 A EP04020483 A EP 04020483A EP 04020483 A EP04020483 A EP 04020483A EP 1514640 A2 EP1514640 A2 EP 1514640A2
Authority
EP
European Patent Office
Prior art keywords
belt
workpiece
support
band
sanding
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
EP04020483A
Other languages
German (de)
French (fr)
Other versions
EP1514640A3 (en
EP1514640B1 (en
Inventor
Horst Dipl.-Ing. Steinwender
Martin Dipl.-Ing. Wolters
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.)
Thielenhaus Technologies GmbH
Original Assignee
Thielenhaus Technologies 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 Thielenhaus Technologies GmbH filed Critical Thielenhaus Technologies GmbH
Publication of EP1514640A2 publication Critical patent/EP1514640A2/en
Publication of EP1514640A3 publication Critical patent/EP1514640A3/en
Application granted granted Critical
Publication of EP1514640B1 publication Critical patent/EP1514640B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
    • 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
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins

Definitions

  • the invention relates to a method for finishing of waves, esp. of crankshafts and camshafts, with a workpiece surface one around its Rotary axis rotating workpiece with the help of a continuously driven endless sanding belt is processed and where the sanding belt tensioned with a tensioning device and at its rear in the area of Work piece surface of an endless, in this area parallel to the sanding belt strained support band is supported.
  • a method with the features described above is from the document US 5,951,377.
  • the known method takes place between the grinding belt and the workpiece to be machined one in a cutting plane perpendicular to the axis of rotation punctiform contact.
  • the sanding belt is in the area of the workpiece surface to be machined between two pulleys led, which also stretch the support band.
  • the invention is based on the object, a method for finishing of shafts, esp. Of crankshafts and camshafts specify that a uniform and specifically tunable to the workpiece surface to be machined Finish machining possible.
  • the object is achieved in that the abrasive belt and the support band partially loop around the workpiece so that the abrasive belt flat against the circumference of the workpiece, and that the support band means a separate second clamping device is tensioned.
  • the inventive Procedure is the abrasive belt area with uniform surface pressure on the workpiece surface to be machined, wherein the contact pressure of the sanding belt by the separate tensioning device of the support band is specifically adjustable.
  • the sanding belt drive allows a targeted Matching the cutting speed to the surface to be processed. Esp. are high cutting speeds even with small workpiece diameters which for ensuring good finisher results are required, adjustable. As a result, the inventive allows Process a finish machining of workpiece surfaces, the high Meet the requirements for surface quality.
  • the support band is preferably made of a high tensile material Young's modulus, for example a metal.
  • Young's modulus for example a metal.
  • the support belt can be tensioned machine-resistant.
  • the support belt is also continuous and driven off with the same direction of movement as the grinding belt. hereby can reduce the mechanical stress on the sanding belt be used so that also abrasive belts with low tensile strength can be.
  • the speed of the support belt corresponds the speed of the sanding belt.
  • the abrasive belt can with a wrap angle of more than 90 ° flat on the machined peripheral surface of the workpiece. This allows a very uniform machining of the workpiece.
  • the invention also provides a device for carrying out the Method according to claim 8. Preferred embodiments of this device are described in claims 9 to 12.
  • Fig. 1 shows a device for finishing a shaft.
  • the Device comprises a tool carrier 1, an endless sanding belt 2 for Finish machining of a rotationally driven about its axis of rotation A.
  • Workpiece 3 a sanding belt drive 4, which the sanding belt 2 during a workpiece machining continuously drives, and a clamping device 5 for the sanding belt 2.
  • the tool carrier 1 has a machining head 6 with two mutually spaced band deflections 7, the one Limit working area L of the machining head 6.
  • the band deflections 7 are formed as pulleys.
  • the sanding belt 2 is guided over the pulleys 7 and runs in the work area L to the machining peripheral surface of the workpiece 3 over.
  • Supporting belt 8 is provided, which in the working area L of the machining head 6 is stretched parallel to the sanding belt 2 and in the work area L the Rear side of the sanding belt 2 is supported.
  • the machining head 6 surrounds the processing peripheral surface of the workpiece 3 so that the back of The support belt 8 acted upon abrasive belt 2, the workpiece 3 partially wraps around and along a peripheral portion of the processed Workpiece surface rests flat.
  • the support band 8 is by means of a separate second clamping device 9 stretched. This second tensioning device 9 allows a targeted adjustment of the exerted by the abrasive belt 2 on the workpiece 3 Surface force.
  • the mechanical stress on the abrasive belt 2 is caused by the support belt. 8 significantly reduced, so no special requirements for tensile strength of the abrasive belt 2 must be made.
  • the sanding belt drive allows a targeted adjustment of the cutting speed on the working surface. The for the achievement of good finisher results required high cutting speeds are thus even at small Workpiece diameters possible.
  • the support band 8 is in the embodiment made of metal, but may alternatively be made of an elastic material consist. The support belt 8 is together with the sanding belt 2 over the Work area L limiting pulleys 7 out and is in Embodiment of FIG.
  • the two clamping devices 5, 9, the Both bands 2.8 and the sanding belt drive 4 are common on the Workpiece carrier 1 is arranged.
  • the tensioning devices 5.9 have adjusting devices 10 for changing the tape lengths in the working area L. Of the Wrap angle ⁇ between the grinding belt 2 and the machined Workpiece surface is more than 90 ° in the embodiment. This is a very uniform workpiece machining possible.
  • the tool carrier 1 is mounted on a feed carriage 11.
  • Fig. 2 shows a further embodiment of the invention Contraption.
  • the tool holder 1 follows here the orbital motion of its axis of rotation A rotating workpiece 3, which in Fig. 2 as Crankshaft is formed.
  • Bearing shafts 12, 12 'are provided, whose shape corresponds to the workpiece 3.
  • the tool carrier 1 is on peripheral surfaces 13, 13 'of Bearing shafts 12, 12 'mounted, the surface to be machined of the workpiece 3 correspond.
  • a separate support belt drive 14 is provided, which continuously drives the support belt 8.
  • the rectified ones Belt speeds of sanding belt 2 and support belt 8 are also in this Embodiment identical.
  • the tool carrier is the first pivotally mounted about a rotation axis C, which is parallel to the rotation axis A. of the workpiece 3 is aligned and in one between the machining head 6 and the grinding belt drive 4 lying tool carrier area arranged is. Trained as a swivel arm tool carrier 1 can by an oscillating pivoting movement of the rotating workpiece surfaces of the Crankshaft 3 follow, with the contact area between abrasive belt 2 and workpiece 3 within the work area L during the orbital motion moves accordingly. Due to the simple construction and Operation, this embodiment allows a particularly cost-effective Finish machining of crankshafts and camshafts.
  • the distance of the sanding belt drive 4 of the axis of rotation C of the tool carrier 1 is set so that a substantial mass balance of the about the rotation axis C given vibrating masses. Furthermore, one is along the tool carrier 1 slidably arranged mass 15 is provided before the Beginning of processing at a specific position of the tool carrier. 1 lockable, so that the desired contact force between abrasive belt 2 and workpiece surface is ensured during processing. Also in this Embodiment, the support band 8 is also continuously with the same Direction of movement and speed as the sanding belt 2 of the Sanding belt drive 4 driven.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The machine has a tool carrier (1) has a drive roller (4) over which the support band (8) can pass. The grinding band (2) lies on the outside surface of the support band. There is a separate tensioning rollers (5) for the grinding band and (9) for the backing or support band with spring-loaded supports (10). The band passes over two fixed guide rollers (7) on either side of the workpiece (3). The cylindrical workpiece rotates about its axis (A) while the moving grinding band moves over a wide arc of engagement (alpha).

Description

Die Erfindung betrifft ein Verfahren zur Finishbearbeitung von Wellen, insbes. von Kurbel- und Nockenwellen, wobei eine Werkstückfläche eines um seine Rotationsachse rotierenden Werkstückes mit Hilfe eines kontinuierlich angetriebenen endlosen Schleifbandes bearbeitet wird und wobei das Schleifband mit einer Spannvorrichtung gespannt und an seiner Rückseite im Bereich der Werkstückfläche von einem endlosen, in diesem Bereich parallel zum Schleifband gespannten Stützband gestützt wird.The invention relates to a method for finishing of waves, esp. of crankshafts and camshafts, with a workpiece surface one around its Rotary axis rotating workpiece with the help of a continuously driven endless sanding belt is processed and where the sanding belt tensioned with a tensioning device and at its rear in the area of Work piece surface of an endless, in this area parallel to the sanding belt strained support band is supported.

Ein Verfahren mit den eingangs beschriebenen Merkmalen ist aus der Druckschrift US 5,951,377 bekannt. Bei dem bekannten Verfahren erfolgt zwischen dem Schleifband und dem zu bearbeitenden Werkstück eine in einer Schnittebene senkrecht zur Rotationsachse punktförmige Berührung. Das Schleifband wird im Bereich der zu bearbeitenden Werkstückfläche zwischen zwei Umlenkrollen geführt, die auch das Stützband spannen.A method with the features described above is from the document US 5,951,377. In the known method takes place between the grinding belt and the workpiece to be machined one in a cutting plane perpendicular to the axis of rotation punctiform contact. The sanding belt is in the area of the workpiece surface to be machined between two pulleys led, which also stretch the support band.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Finishbearbeitung von Wellen, insbes. von Kurbel- und Nockenwellen anzugeben, das eine gleichmäßige und auf die zu bearbeitende Werkstückfläche gezielt abstimmbare Finishbearbeitung ermöglicht.The invention is based on the object, a method for finishing of shafts, esp. Of crankshafts and camshafts specify that a uniform and specifically tunable to the workpiece surface to be machined Finish machining possible.

Ausgehend von einem Verfahren mit den eingangs beschriebenen Merkmalen wird die Aufgabe erfindungsgemäß dadurch gelöst, dass das Schleifband und das Stützband das Werkstück teilweise umschlingen, so dass das Schleifband am Umfang des Werkstückes flächig anliegt, und dass das Stützband mittels einer separaten zweiten Spannvorrichtung gespannt wird. Bei dem erfindungsgemäßen Verfahren liegt das Schleifband flächig mit gleichmäßiger Flächenpressung an der zu bearbeitenden Werkstückfläche an, wobei die Anpresskraft des Schleifbandes durch die separate Spannvorrichtung des Stützbandes gezielt einstellbar ist. Ferner erlaubt der Schleifbandantrieb eine gezielte Abstimmung der Schnittgeschwindigkeit auf die zu bearbeitende Oberfläche. Insbes. sind auch bei kleinen Werkstückdurchmessern hohe Schnittgeschwindigkeiten, welche für die Gewährleistung von guten Finishergebnissen erforderlich sind, einstellbar. Im Ergebnis ermöglicht das erfindungsgemäße Verfahren eine Finishbearbeitung von Werkstückflächen, die hohen Anforderungen an die Oberflächengüte entsprechen.Based on a method with the features described above the object is achieved in that the abrasive belt and the support band partially loop around the workpiece so that the abrasive belt flat against the circumference of the workpiece, and that the support band means a separate second clamping device is tensioned. In the inventive Procedure is the abrasive belt area with uniform surface pressure on the workpiece surface to be machined, wherein the contact pressure of the sanding belt by the separate tensioning device of the support band is specifically adjustable. Furthermore, the sanding belt drive allows a targeted Matching the cutting speed to the surface to be processed. Esp. are high cutting speeds even with small workpiece diameters which for ensuring good finisher results are required, adjustable. As a result, the inventive allows Process a finish machining of workpiece surfaces, the high Meet the requirements for surface quality.

Das Stützband besteht vorzugsweise aus einem zugfesten Material mit hohem Elastizitätsmodul, beispielsweise einem Metall. Die Verwendung eines Stützbandes, das aus einem elastomeren Material besteht und dehnbar ist, soll jedoch nicht ausgeschlossen sein.The support band is preferably made of a high tensile material Young's modulus, for example a metal. The use of a support band, which is made of an elastomeric material and is stretchable, should but not be excluded.

Das Stützband kann maschinenfest gespannt werden. Gemäß einer bevorzugten Ausführung der Erfindung wird das Stützband ebenfalls kontinuierlich und mit gleicher Bewegungsrichtung wie das Schleifband abgetrieben. Hierdurch kann die mechanische Beanspruchung des Schleifbandes reduziert werden, so dass auch Schleifbänder mit geringer Zugfestigkeit eingesetzt werden können. Vorzugsweise entspricht die Geschwindigkeit des Stützbandes der Geschwindigkeit des Schleifbandes.The support belt can be tensioned machine-resistant. According to a preferred Embodiment of the invention, the support belt is also continuous and driven off with the same direction of movement as the grinding belt. hereby can reduce the mechanical stress on the sanding belt be used so that also abrasive belts with low tensile strength can be. Preferably, the speed of the support belt corresponds the speed of the sanding belt.

Das Schleifband kann mit einem Umschlingungswinkel von mehr als 90° flächig an der zu bearbeitenden Umfangsfläche des Werkstückes an. Dies erlaubt eine sehr gleichmäßige Bearbeitung des Werkstückes.The abrasive belt can with a wrap angle of more than 90 ° flat on the machined peripheral surface of the workpiece. This allows a very uniform machining of the workpiece.

Gegenstand der Erfindung ist auch eine Vorrichtung zur Durchführung des Verfahrens gemäß Anspruch 8. Bevorzugte Ausführungen dieser Vorrichtung sind in den Ansprüchen 9 bis 12 beschrieben. The invention also provides a device for carrying out the Method according to claim 8. Preferred embodiments of this device are described in claims 9 to 12.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlich erläutert. Es zeigen schematisch:

Fig. 1
eine Seitenansicht einer erfindungsgemäßen Vorrichtung zur Finisbearbeitung von Wellen,
Fig. 2 und 3
weitere Ausgestaltungen der erfindungsgemäßen Vorrichtung ebenfalls in einer Seitenansicht.
In the following the invention will be explained in detail with reference to a drawing showing only one embodiment. They show schematically:
Fig. 1
a side view of a device according to the invention for Finisbearbeitung of waves,
FIGS. 2 and 3
Further embodiments of the device according to the invention also in a side view.

Die Fig. 1 zeigt eine Vorrichtung zur Finishbearbeitung einer Welle. Die Vorrichtung weist einen Werkzeugträger 1, ein endloses Schleifband 2 zur Finishbearbeitung eines um seine Rotationsachse A rotierend angetriebenen Werkstückes 3, einen Schleifbandantrieb 4, welcher das Schleifband 2 während einer Werkstückbearbeitung kontinuierlich antreibt, und eine Spannvorrichtung 5 für das Schleifband 2 auf. Der Werkzeugträger 1 besitzt einen Bearbeitungskopf 6 mit zwei zueinander beabstandeten Bandumlenkungen 7, die einen Arbeitsbereich L des Bearbeitungskopfes 6 begrenzen. Im Ausführungsbeispiel sind die Bandumlenkungen 7 als Umlenkrollen ausgebildet. Das Schleifband 2 wird über die Umlenkrollen 7 geführt und läuft im Arbeitsbereich L an der zu bearbeitenden Umfangsfläche des Werkstückes 3 vorbei. Ferner ist ein endloses Stützband 8 vorgesehen, welches im Arbeitsbereich L des Bearbeitungskopfes 6 parallel zum Schleifband 2 gespannt ist und im Arbeitsbereich L die Rückseite des Schleifbandes 2 abstützt. Der Bearbeitungskopf 6 umgreift die zu bearbeitende Umfangsfläche des Werkstückes 3 so, dass das rückseitig von dem Stützband 8 beaufschlagte Schleifband 2 das Werkstück 3 teilweise umschlingt und entlang eines Umfangsabschnittes an der zu bearbeitenden Werkstückfläche flächig anliegt. Das Stützband 8 ist mit Hilfe einer separaten zweiten Spannvorrichtung 9 gespannt. Diese zweite Spannvorrichtung 9 erlaubt eine gezielte Einstellung der von dem Schleifband 2 auf das Werkstück 3 ausgeübten Flächenkraft. Diese Flächenkraft verläuft darüber hinaus über die gesamte Kontaktfläche zwischen Schleifband 2 und Werkstück 3 hinweg sehr gleichmäßig. Hierdurch sind sehr gute Finishergebnisse erzielbar. Die mechanische Beanspruchung des Schleifbandes 2 wird durch das Stützband 8 erheblich reduziert, so dass keine besonderen Anforderungen an die Zugfestigkeit des Schleifbandes 2 gestellt werden müssen. Der Schleifbandantrieb erlaubt eine gezielte Abstimmung der Schnittgeschwindigkeit auf die zu bearbeitende Oberfläche. Die für die Erzielung von guten Finishergebnissen erforderlichen hohen Schnittgeschwindigkeiten sind damit auch bei kleinen Werkstückdurchmessern möglich. Das Stützband 8 besteht im Ausführungsbeispiel aus Metall, kann alternativ aber auch aus einem elastischen Material bestehen. Das Stützband 8 ist zusammen mit dem Schleifband 2 über die den Arbeitsbereich L begrenzenden Umlenkrollen 7 geführt und wird im Ausführungsbeispiel gemäß Fig. 1 ebenfalls von dem Schleifbandantrieb 4 angetrieben. Im Ausführungsbeispiel ist die gleichgerichtete Geschwindigkeit der beiden Bänder 2, 8 identisch, so dass im Arbeitsbereich L zwischen dem Schleifband 2 und dem Stützband 8 nur eine sehr geringe bzw. keine Relativbewegung vorliegt. Hierdurch ist eine besonders geringe Zugbeanspruchung des Schleifbandes 2 gewährleistet. Die beiden Spannvorrichtungen 5, 9, die beiden Bänder 2,8 und der Schleifbandantrieb 4 sind gemeinsam auf dem Werkstückträger 1 angeordnet. Die Spannvorrichtungen 5,9 weisen Stelleinrichtungen 10 zur Veränderung der Bandlängen im Arbeitsbereich L auf. Der Umschlingungswinkel α zwischen dem Schleifband 2 und der zu bearbeitenden Werkstückfläche beträgt im Ausführungsbeispiel mehr als 90°. Hierdurch ist eine sehr gleichmäßige Werkstückbearbeitung möglich. Der Werkzeugträger 1 ist auf einem Zustellschlitten 11 montiert.Fig. 1 shows a device for finishing a shaft. The Device comprises a tool carrier 1, an endless sanding belt 2 for Finish machining of a rotationally driven about its axis of rotation A. Workpiece 3, a sanding belt drive 4, which the sanding belt 2 during a workpiece machining continuously drives, and a clamping device 5 for the sanding belt 2. The tool carrier 1 has a machining head 6 with two mutually spaced band deflections 7, the one Limit working area L of the machining head 6. In the embodiment the band deflections 7 are formed as pulleys. The sanding belt 2 is guided over the pulleys 7 and runs in the work area L to the machining peripheral surface of the workpiece 3 over. Further, it is an endless one Supporting belt 8 is provided, which in the working area L of the machining head 6 is stretched parallel to the sanding belt 2 and in the work area L the Rear side of the sanding belt 2 is supported. The machining head 6 surrounds the processing peripheral surface of the workpiece 3 so that the back of The support belt 8 acted upon abrasive belt 2, the workpiece 3 partially wraps around and along a peripheral portion of the processed Workpiece surface rests flat. The support band 8 is by means of a separate second clamping device 9 stretched. This second tensioning device 9 allows a targeted adjustment of the exerted by the abrasive belt 2 on the workpiece 3 Surface force. This area force also goes beyond the entire contact surface between the grinding belt 2 and workpiece 3 away a lot evenly. As a result, very good finisher results can be achieved. The mechanical stress on the abrasive belt 2 is caused by the support belt. 8 significantly reduced, so no special requirements for tensile strength of the abrasive belt 2 must be made. The sanding belt drive allows a targeted adjustment of the cutting speed on the working surface. The for the achievement of good finisher results required high cutting speeds are thus even at small Workpiece diameters possible. The support band 8 is in the embodiment made of metal, but may alternatively be made of an elastic material consist. The support belt 8 is together with the sanding belt 2 over the Work area L limiting pulleys 7 out and is in Embodiment of FIG. 1 also from the sanding belt drive 4th driven. In the embodiment, the rectified speed the two bands 2, 8 identical, so that in the work area L between the Sanding belt 2 and the support belt 8 only a very small or no relative movement is present. This is a particularly low tensile stress ensures the grinding belt 2. The two clamping devices 5, 9, the Both bands 2.8 and the sanding belt drive 4 are common on the Workpiece carrier 1 is arranged. The tensioning devices 5.9 have adjusting devices 10 for changing the tape lengths in the working area L. Of the Wrap angle α between the grinding belt 2 and the machined Workpiece surface is more than 90 ° in the embodiment. This is a very uniform workpiece machining possible. The tool carrier 1 is mounted on a feed carriage 11.

Die Fig. 2 zeigt eine weitere Ausgestaltung der erfindungsgemäßen Vorrichtung. Der Werkzeugträger 1 folgt hier der Umlaufbewegung des um seine Rotationsachse A rotierenden Werkstückes 3, welches in der Fig. 2 als Kurbelwelle ausgebildet ist. Es sind zwei parallel zum Werkstück 3 angeordnete Lagerwellen 12, 12' vorgesehen, deren Gestalt dem Werkstück 3 entspricht. Die Lagerwellen 12, 12' rotieren synchron und phasengleich zum Werkstück 3 um ihre Achsen B, B'. Der Werkzeugträger 1 ist an Umfangsflächen 13, 13' der Lagerwellen 12, 12' gelagert, die der zu bearbeitenden Fläche des Werkstückes 3 entsprechen. In Fig. 2 ist ein separater Stützbandantrieb 14 vorgesehen, welcher das Stützband 8 kontinuierlich antreibt. Die gleichgerichteten Bandgeschwindigkeiten von Schleifband 2 und Stützband 8 sind auch in diesem Ausführungsbeispiel identisch.Fig. 2 shows a further embodiment of the invention Contraption. The tool holder 1 follows here the orbital motion of its axis of rotation A rotating workpiece 3, which in Fig. 2 as Crankshaft is formed. There are two arranged parallel to the workpiece 3 Bearing shafts 12, 12 'are provided, whose shape corresponds to the workpiece 3. The Bearing shafts 12, 12 'rotate synchronously and in phase with the workpiece 3 their axes B, B '. The tool carrier 1 is on peripheral surfaces 13, 13 'of Bearing shafts 12, 12 'mounted, the surface to be machined of the workpiece 3 correspond. 2, a separate support belt drive 14 is provided, which continuously drives the support belt 8. The rectified ones Belt speeds of sanding belt 2 and support belt 8 are also in this Embodiment identical.

Bei der in der Fig. 3 dargestellten Ausführungsform ist der Werkzeugträger 1 schwenkbar um eine Drehachse C gelagert, die parallel zur Rotationsachse A des Werkstückes 3 ausgerichtet ist und in einem zwischen dem Bearbeitungskopf 6 und dem Schleifbandantrieb 4 liegenden Werkzeugträgerbereich angeordnet ist. Der als Schwenkarm ausgebildete Werkzeugträger 1 kann durch eine oszillierende Schwenkbewegung den umlaufenden Werkstückflächen der Kurbelwelle 3 folgen, wobei sich der Kontaktbereich zwischen Schleifband 2 und Werkstück 3 innerhalb des Arbeitsbereiches L während der Umlaufbewegung entsprechend verschiebt. Aufgrund der einfachen Konstruktion und Betriebsweise erlaubt diese Ausführungsform eine besonders kostengünstige Finishbearbeitung von Kurbel- und Nockenwellen. Der Abstand des Schleifbandantriebes 4 von der Drehachse C des Werkzeugträgers 1 ist so festgelegt, dass ein weitgehender Massenausgleich der um die Drehachse C schwingenden Massen gegeben ist. Ferner ist eine entlang des Werkzeugträgers 1 verschiebbar angeordnete Masse 15 vorgesehen, die vor dem Bearbeitungsbeginn an einer bestimmten Position des Werkzeugträgers 1 arretierbar ist, so dass die gewünschte Anpresskraft zwischen Schleifband 2 und Werkstückfläche während der Bearbeitung gewährleistet ist. Auch in dieser Ausführungsform wird das Stützband 8 ebenfalls kontinuierlich mit gleicher Bewegungsrichtung und Geschwindigkeit wie das Schleifband 2 von dem Schleifbandantrieb 4 angetrieben.In the embodiment shown in FIG. 3, the tool carrier is the first pivotally mounted about a rotation axis C, which is parallel to the rotation axis A. of the workpiece 3 is aligned and in one between the machining head 6 and the grinding belt drive 4 lying tool carrier area arranged is. Trained as a swivel arm tool carrier 1 can by an oscillating pivoting movement of the rotating workpiece surfaces of the Crankshaft 3 follow, with the contact area between abrasive belt 2 and workpiece 3 within the work area L during the orbital motion moves accordingly. Due to the simple construction and Operation, this embodiment allows a particularly cost-effective Finish machining of crankshafts and camshafts. The distance of the sanding belt drive 4 of the axis of rotation C of the tool carrier 1 is set so that a substantial mass balance of the about the rotation axis C given vibrating masses. Furthermore, one is along the tool carrier 1 slidably arranged mass 15 is provided before the Beginning of processing at a specific position of the tool carrier. 1 lockable, so that the desired contact force between abrasive belt 2 and workpiece surface is ensured during processing. Also in this Embodiment, the support band 8 is also continuously with the same Direction of movement and speed as the sanding belt 2 of the Sanding belt drive 4 driven.

Claims (12)

Verfahren zur Finishbearbeitung von Wellen, insbes. von Kurbel- und Nockenwellen, wobei eine Werkstückfläche eines um seine Rotationsachse rotierenden Werkstückes mit Hilfe eines kontinuierlich angetriebenen endlosen Schleifbandes bearbeitet wird, wobei das Schleifband mit einer Spannvorrichtung gespannt und an seiner Rückseite im Bereich der Werkstückfläche von einem endlosen, in diesem Bereich parallel zum Schleifband gespannten Stützband gestützt wird, dadurch gekennzeich-net, dass das Schleifband und das Stützband das Werkstück teilweise umschlingen, so dass das Schleifband am Umfang des Werkstückes flächig anliegt, und dass das Stützband mittels einer separaten zweiten Spannvorrichtung gespannt wird.A method for finish machining of shafts, esp. Of crankshafts and camshafts, wherein a workpiece surface of a rotating about its axis of rotation workpiece is processed by means of a continuously driven endless abrasive belt, wherein the abrasive belt clamped with a tensioning device and on its back in the area of the workpiece surface of a endless, is supported in this region parallel to the abrasive belt tensioned support band, characterized in net, that the grinding belt and the supporting belt loop around the workpiece part, so that the abrasive belt on the periphery of the workpiece surface, and in that the support belt by means of a separate second tensioning device strained becomes. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Stützband aus einem zugfesten Material mit hohem Elastizitätsmodul besteht.A method according to claim 1, characterized in that the support band consists of a tensile material with high modulus of elasticity. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass das Stützband aus Metall besteht.A method according to claim 2, characterized in that the support band consists of metal. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass das Stützband während der Bearbeitung der Werkstückfläche fest steht.Method according to claims 1 to 3, characterized in that the support belt is fixed during the machining of the workpiece surface. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass das Stützband ebenfalls kontinuierlich und mit gleicher Bewegungsrichtung wie das Schleifband angetrieben wird.Method according to claims 1 to 3, characterized in that the support belt is also driven continuously and with the same direction of movement as the grinding belt. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Geschwindigkeit des Stützbandes der Geschwindigkeit des Schleifbandes entspricht. A method according to claim 5, characterized in that the speed of the support belt corresponds to the speed of the sanding belt. Verfahren nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, dass das Schleifband mit einem Umschlingungswinkel von mehr als 90° flächig an der zu bearbeitenden Umfangsfläche des Werkstückes anliegt.A method according to claims 1 to 6, characterized in that the abrasive belt with a wrap angle of more than 90 ° rests flat against the machined peripheral surface of the workpiece. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7 mit
   Werkzeugträger (1),
   endlosem Schleifband (2) zur Finishbearbeitung eines um seine Rotationsachse (A) rotierend angetriebenen Werkstückes (3),
   einem Schleifbandantrieb (4), welcher das Schleifband (2) während einer Werkstückbearbeitung kontinuierlich antreibt und
   einer Spannvorrichtung (5) für das Schleifband (2),
wobei der Werkzeugträger (1) einen Bearbeitungskopf (6) mit zwei zueinander beabstandeten Bandumlenkungen (7) aufweist, die einen Arbeitsbereich (L) des Bearbeitungskopfes (6) begrenzen, wobei das Schleifband (2) über die Bandumlenkungen (7) des Bearbeitungskopfes (6) geführt ist und wobei ein endloses Stützband (8) vorgesehen ist, welches im Arbeitsbereich (L) des Bearbeitungskopfes (6) parallel zum Schleifband (2) gespannt ist und im Arbeitsbereich (L) die Rückseite des Schleifbandes (2) abstützt, dadurch gekennzeich net, dass der Bearbeitungskopf (6) die zu bearbeitende Umfangsfläche des Werkstückes(3) gabelförmig so umgreift, dass das rückseitig von dem Stützband (8) beaufschlagte Schleifband (2) das Werkstück (3) teilweise umschlingt und entlang eines Umfangsabschnittes an der zu bearbeitenden Werkstückfläche flächig anliegt, und dass das Stützband (8) mit Hilfe einer separaten zweiten Spannvorrichtung (9) gespannt ist. Apparatus for carrying out the method according to one of claims 1 to 7 with
Tool carrier (1),
endless grinding belt (2) for finish machining of a workpiece (3) driven in rotation about its axis of rotation (A),
a sanding belt drive (4) which continuously drives the sanding belt (2) during workpiece machining, and
a tensioning device (5) for the sanding belt (2),
the tool carrier (1) having a machining head (6) with two mutually spaced band deflections (7) delimiting a working area (L) of the machining head (6), the sanding belt (2) being moved over the band deflections (7) of the machining head (6 ) is guided and wherein an endless support belt (8) is provided which in the work area (L) of the machining head (6) is stretched parallel to the sanding belt (2) and in the work area (L) the back of the abrasive belt (2) is supported, characterized gekennzeich Net , that the machining head (6) so engages the peripheral surface of the workpiece (3) to be machined so that the back of the support belt (8) acted upon abrasive belt (2) partially wraps around the workpiece (3) and along a peripheral portion of the machined Plane surface is applied flat, and that the support band (8) by means of a separate second clamping device (9) is stretched. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Stützband (8) aus einem zugfesten Material mit hohem Elastizitätsmodul, vorzugsweise aus Metall, besteht.Apparatus according to claim 8, characterized in that the support band (8) consists of a tensile material with high modulus of elasticity, preferably of metal. Vorrichtung nach den Ansprüchen 8 oder 9, dadurch gekennzeichnet, dass das Stützband (8) zusammen mit dem Schleifband (2) über die den Arbeitsbereich (L) begrenzenden Bandumlenkungen (6) geführt ist und von dem Schleifbandantrieb (4) oder einem separaten Stützbandantrieb (14) angetrieben wird.Device according to claims 8 or 9, characterized in that the support belt (8) is guided together with the sanding belt (2) over the working area (L) limiting band deflections (6) and by the sanding belt drive (4) or a separate support belt drive ( 14) is driven. Vorrichtung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass die Spannvorrichtungen (5,9) und die Antriebe (4, 14) für das Schleifband (2) und das Stützband (8) auf dem Werkzeugträger (1) angeordnet sind.Device according to one of claims 8 to 10, characterized in that the clamping devices (5,9) and the drives (4, 14) for the grinding belt (2) and the support belt (8) are arranged on the tool carrier (1). Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass die Spannvorrichtungen (5,9) Stelleinrichtungen (10) zur Veränderung der Bandlängen im Arbeitsbereich (L) aufweisen.Device according to one of claims 8 to 11, characterized in that the clamping devices (5,9) have adjusting devices (10) for changing the tape lengths in the working area (L).
EP20040020483 2003-09-12 2004-08-28 Method and apparatus for finishing shafts, especially crank- and camshafts Expired - Lifetime EP1514640B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003142134 DE10342134B4 (en) 2003-09-12 2003-09-12 Method and device for finishing crankshafts and camshafts
DE10342134 2003-09-12

Publications (3)

Publication Number Publication Date
EP1514640A2 true EP1514640A2 (en) 2005-03-16
EP1514640A3 EP1514640A3 (en) 2006-03-01
EP1514640B1 EP1514640B1 (en) 2010-05-26

Family

ID=34129774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040020483 Expired - Lifetime EP1514640B1 (en) 2003-09-12 2004-08-28 Method and apparatus for finishing shafts, especially crank- and camshafts

Country Status (2)

Country Link
EP (1) EP1514640B1 (en)
DE (2) DE10342134B4 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007081289A1 (en) * 2006-01-09 2007-07-19 Giken Sakata (S) Limited An apparatus for grinding a work piece
WO2009049868A1 (en) * 2007-10-16 2009-04-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece
EP2617522A1 (en) * 2012-01-23 2013-07-24 Supfina Grieshaber GmbH & Co. KG Device for finely processing a peripheral area of the workpiece fixed in an eccentric manner to a peripheral area of a workpiece
CN104139333A (en) * 2014-07-11 2014-11-12 山东金宝电子股份有限公司 Grinding method for rubber layer of rubber roller of copper foil surface treatment machine and arc plate fixture used thereof
EP3103587A1 (en) * 2015-05-07 2016-12-14 Jakob Löwer Inh. von Schumann GmbH & Co. KG Deburring machine for deburring metallic workpieces
CN106425768A (en) * 2016-09-23 2017-02-22 杭州新松机器人自动化有限公司 Abrasive belt floating polishing mechanism
CN106863077A (en) * 2015-11-09 2017-06-20 德国索菲纳有限公司 Finishing belting and workpiece method for fine finishing
CN107953207A (en) * 2017-12-26 2018-04-24 佛山市艾乐博机器人科技有限公司 A kind of grinding apparatus and its processing method
CN108044728A (en) * 2018-01-18 2018-05-18 杨月君 A kind of process units of winding-type circle template and winding-type circle template
CN108177061A (en) * 2018-01-16 2018-06-19 苏州丰川电子科技有限公司 Automate metal surface treating apparatus
CN110026867A (en) * 2019-05-05 2019-07-19 宁波梦创知识产权服务有限公司 A kind of multi-angle processing roller manufacturing device
CN115464519A (en) * 2022-10-26 2022-12-13 王鑫 System for removing oxide layer on surface of metal wire

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052311A1 (en) 2010-11-17 2012-05-24 Nagel Maschinen- Und Werkzeugfabrik Gmbh Method and device for finishing curved workpiece surfaces on workpieces by means of finishing tape
DE102011081918A1 (en) 2011-08-31 2013-02-28 Nagel Maschinen- Und Werkzeugfabrik Gmbh Finishing machine for finishing curved workpiece surfaces on workpieces
TWI725225B (en) * 2017-08-30 2021-04-21 日商荏原製作所股份有限公司 Grinding device and grinding method
CN112059852A (en) * 2020-09-30 2020-12-11 王后连 Polishing belt type strip steel side burr removing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE844420C (en) * 1951-01-06 1952-07-21 Ernst Ebner Belt grinder
DE7424571U (en) * 1974-10-17 Krugmann Gjt Grinding device
US5951377A (en) * 1996-08-01 1999-09-14 Radtec, Inc. Microfinishing machine
EP1514642A2 (en) * 2003-09-12 2005-03-16 Thielenhaus Technologies GmbH Apparatus and method for finishing shafts, especially crank- and camshafts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020393A1 (en) * 1980-05-29 1982-01-28 Friedr. August Picard KG, 5630 Remscheid Endless band grinder unit - has band supported on resilient endless belt running around support disc with spaced projections on disc surface
JPH11165249A (en) * 1997-12-05 1999-06-22 Tocalo Co Ltd Belt type polishing device
US6220946B1 (en) * 1998-02-13 2001-04-24 Philip D. Arnold Active polishing of rotatable article surfaces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7424571U (en) * 1974-10-17 Krugmann Gjt Grinding device
DE844420C (en) * 1951-01-06 1952-07-21 Ernst Ebner Belt grinder
US5951377A (en) * 1996-08-01 1999-09-14 Radtec, Inc. Microfinishing machine
EP1514642A2 (en) * 2003-09-12 2005-03-16 Thielenhaus Technologies GmbH Apparatus and method for finishing shafts, especially crank- and camshafts

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007081289A1 (en) * 2006-01-09 2007-07-19 Giken Sakata (S) Limited An apparatus for grinding a work piece
CN101370618B (en) * 2006-01-09 2010-08-25 技研阪田股份有限公司 An apparatus for grinding a work piece
WO2009049868A1 (en) * 2007-10-16 2009-04-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece
CN101903130A (en) * 2007-10-16 2010-12-01 纳格尔机械及工具制造厂有限责任公司 The equipment and the method that are used for the press device of cutting part and are used to polish the side face of cylindrical work part
DE102007051047B4 (en) 2007-10-16 2023-03-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Press-on device for finishing belt and device and method for finishing peripheral surfaces on cylindrical workpiece sections
CN106425773A (en) * 2007-10-16 2017-02-22 纳格尔机械及工具制造厂有限责任公司 Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece
EP2212058B2 (en) † 2007-10-16 2018-03-28 Nagel Maschinen- und Werkzeugfabrik GmbH Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece
US8517804B2 (en) 2007-10-16 2013-08-27 Nagel Maschinen- Und Werkzeugfabrik Gmbh Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece
KR20130086172A (en) * 2012-01-23 2013-07-31 숩피나 그리에샤버 게엠베하 & 씨오. 케이쥐 Apparatus for finely processing surrounding surface of workpiece eccentrically disposed with respect to workpiece axis of workpiece
US9114497B2 (en) 2012-01-23 2015-08-25 Supfina Grieshaber Gmbh & Co. Kg Device for fine-machining a peripheral workpiece surface located eccentrically in relation to a workpiece axis of a workpiece
CN103213042B (en) * 2012-01-23 2016-01-20 德国索菲纳有限公司 For the accurately machined equipment of workpiece ring side face to the axis of workpiece eccentric setting about workpiece
CN103213042A (en) * 2012-01-23 2013-07-24 德国索菲纳有限公司 Device for finely processing a peripheral area of the workpiece fixed in an eccentric manner to a peripheral area of a workpiece
EP2617522A1 (en) * 2012-01-23 2013-07-24 Supfina Grieshaber GmbH & Co. KG Device for finely processing a peripheral area of the workpiece fixed in an eccentric manner to a peripheral area of a workpiece
CN104139333B (en) * 2014-07-11 2016-05-18 山东金宝电子股份有限公司 The method for grinding of copper foil surface processor rubber roll glue-line and the arc board clamp of use thereof
CN104139333A (en) * 2014-07-11 2014-11-12 山东金宝电子股份有限公司 Grinding method for rubber layer of rubber roller of copper foil surface treatment machine and arc plate fixture used thereof
EP3103587A1 (en) * 2015-05-07 2016-12-14 Jakob Löwer Inh. von Schumann GmbH & Co. KG Deburring machine for deburring metallic workpieces
CN106863077A (en) * 2015-11-09 2017-06-20 德国索菲纳有限公司 Finishing belting and workpiece method for fine finishing
CN106425768B (en) * 2016-09-23 2018-06-01 杭州新松机器人自动化有限公司 A kind of abrasive band floating workpiece polishing mechanism
CN106425768A (en) * 2016-09-23 2017-02-22 杭州新松机器人自动化有限公司 Abrasive belt floating polishing mechanism
CN107953207A (en) * 2017-12-26 2018-04-24 佛山市艾乐博机器人科技有限公司 A kind of grinding apparatus and its processing method
CN108177061A (en) * 2018-01-16 2018-06-19 苏州丰川电子科技有限公司 Automate metal surface treating apparatus
CN108044728A (en) * 2018-01-18 2018-05-18 杨月君 A kind of process units of winding-type circle template and winding-type circle template
CN108044728B (en) * 2018-01-18 2023-08-25 天津银雪环保科技服务有限公司 Winding type round template and production device of winding type round template
CN110026867A (en) * 2019-05-05 2019-07-19 宁波梦创知识产权服务有限公司 A kind of multi-angle processing roller manufacturing device
CN115464519A (en) * 2022-10-26 2022-12-13 王鑫 System for removing oxide layer on surface of metal wire
CN115464519B (en) * 2022-10-26 2024-02-13 天津市春鹏预应力钢绞线有限公司 System for removing oxide layer on surface of metal wire

Also Published As

Publication number Publication date
DE10342134A1 (en) 2005-04-07
EP1514640A3 (en) 2006-03-01
DE502004011200D1 (en) 2010-07-08
EP1514640B1 (en) 2010-05-26
DE10342134B4 (en) 2009-09-03

Similar Documents

Publication Publication Date Title
EP1514640B1 (en) Method and apparatus for finishing shafts, especially crank- and camshafts
DE60000670T2 (en) Belt grinding machine with grinding belt moving around one orbit
DE202008018526U1 (en) Pressing device for Schmittel and device for finishing peripheral surfaces on cylindrical workpiece sections
DE69130864T2 (en) GRINDING MACHINE WITH SWINGING PLATE AND ABRASIVE
DE4493442B4 (en) Continuous grinding machine, especially designed for grinding wood and intermediate grinding of paint on cover plates, etc., which are mainly flat workpieces
DE19526863A1 (en) Process for finishing piston rings
EP1990133B1 (en) Grinder as tool for a processing device
DE69205693T2 (en) Cylindrical grinding machine.
EP3135433A2 (en) Surface processing unit, machine tool and method of operating
DE19634839A1 (en) Fine machining with vibrating head
DE19723306C2 (en) Method and device for grinding or polishing end faces of plate-shaped bodies
EP2636482B1 (en) Workpiece processing system and method for detailed processing of a workpiece
DE4227315C2 (en) Machine for grinding, short stroke honing and polishing the outer surface of workpieces
DE1909788A1 (en) Grinding and polishing machine
DE69410527T2 (en) Belt grinder for cylindrical workpieces
EP0276439B1 (en) Method for grinding internally long bores with extremly small diameter in pieces and device for carrying out this method
EP1514643B1 (en) Process for finishing the surface of revoluton of shafts
DE19821982C2 (en) Profile belt grinder
EP1514641A1 (en) Apparatus for Finishing Shafts, particularly Crank- and Camshafts
DE3312133A1 (en) Foam shape-cutting machine, especially for numerical tool control
DE10342137B4 (en) Apparatus and method for finish machining of shafts, in particular crankshafts and camshafts
DE202009004809U1 (en) Pipe grinding machine with adjustable side guide of the sanding belt
DE10041925A1 (en) Grinding process involves bringing workpiece and grinding agent into engagement with feed movement as well as vibrating movement which differs from feed direction
DE3918847C2 (en)
DE102018101339A1 (en) Belt finishing device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20060318

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20090514

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 502004011200

Country of ref document: DE

Date of ref document: 20100708

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20110301

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502004011200

Country of ref document: DE

Effective date: 20110228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110830

Year of fee payment: 8

Ref country code: FR

Payment date: 20110912

Year of fee payment: 8

Ref country code: DE

Payment date: 20110830

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110831

Year of fee payment: 8

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120828

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130301

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004011200

Country of ref document: DE

Effective date: 20130301