EP1321232A1 - Grinding tool and method of use of said grinding tool - Google Patents

Grinding tool and method of use of said grinding tool Download PDF

Info

Publication number
EP1321232A1
EP1321232A1 EP02020380A EP02020380A EP1321232A1 EP 1321232 A1 EP1321232 A1 EP 1321232A1 EP 02020380 A EP02020380 A EP 02020380A EP 02020380 A EP02020380 A EP 02020380A EP 1321232 A1 EP1321232 A1 EP 1321232A1
Authority
EP
European Patent Office
Prior art keywords
tool
rotation
center
fluid channel
fluid
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
EP02020380A
Other languages
German (de)
French (fr)
Other versions
EP1321232B1 (en
Inventor
Robert Kohl
Hans-Joachim Warabjow
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.)
Novoceric Transportanlagen GmbH
Original Assignee
Novoceric Transportanlagen 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 Novoceric Transportanlagen GmbH filed Critical Novoceric Transportanlagen GmbH
Publication of EP1321232A1 publication Critical patent/EP1321232A1/en
Application granted granted Critical
Publication of EP1321232B1 publication Critical patent/EP1321232B1/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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • 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
    • B24D7/06—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 with inserted abrasive blocks, e.g. segmental
    • 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
    • B24D7/10—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 with cooling provisions

Definitions

  • the invention relates to a processing device, in particular a Grinding or milling device, preferably for leveling stones, with a rotating tool that has a turning center as well at least one cutting element located at a distance from the center of rotation Location is arranged, wherein the rotating tool by means of a Spindle stored and rotationally driven. Furthermore, the concerns Invention a method for operating the processing device.
  • EP 0 785 839 B1 discloses a method and associated apparatus for laterally leveling such stones.
  • a rotating milling or grinding tool is used, which has a rotating disk whose circumference is occupied by cutting elements.
  • These cutting elements may be those with a geometrically determined cutting edge (milling tool) or one with a geometrically indefinite cutting edge (grinding tool).
  • a device for two-sided grinding of a stone is also known from DE 296 13 831 U1 . Also in this solution, the aforementioned rotating grinding tools are used.
  • the invention is therefore based on the object , a processing device of the generic type such that the load on the device is reduced with abrasive dust particles. This is intended to increase the service life of the device. Furthermore, the device should be developed so that the heat generation is reduced during operation. Furthermore, a method for operating the processing device is proposed, with which this objective can be supported and achieved.
  • the solution of this object by the invention is according to the device characterized in that the processing device comprises means by which a fluid, in particular air, can be passed to the center of rotation of the tool, and that the tool further comprises at least one fluid channel, which with the center of rotation of the tool the fluidically connects at least one cutting element.
  • the processing device so is executed that it becomes possible, one from the center of the machining tool Outgoing air flow to the edge of the tool to lead to the cutting elements and thereby on the one hand the resulting Dust transported to the outside and on the other a cooling cause the tool engagement surfaces.
  • This will not only the Machining device protected from the action of dust, it is also possible to reduce the operating temperature significantly, as the air jet guided by the tool cools this.
  • the means for Supplying fluid, so in particular of air, to the center of rotation of the Tool is designed as a hollow shaft, which serves as a spindle of the tool serves.
  • the hollow shaft can be coaxial in a substantially be stored cylinder-shaped drive motor.
  • a structurally particularly simple embodiment of the invention Machining device is reached when the tool a Base body and a cover body, between which the at least one fluid channel is formed. It can both the Main body and the cover body substantially rotationally symmetrical be educated. Furthermore, it has proved to be advantageous that the width of the fluid channel with increasing radial distance from Turning center decreases; this is in particular a linear decrease - at least over a section - thought.
  • the base body can, on its side facing the fluid channel, be conically shaped at least over a section. Accordingly, the cover body facing at its the fluid channel Side just be formed.
  • the achievement of the air flow over the center of rotation of the Tool and the fluid channel to the cutting elements of the tool can be both active and passive.
  • the basic body and / or the cover body has at least one guide surface, along derer the fluid, in particular air, from the center of rotation of the tool to the at least one cutting element can be passed; points in particular the covering body on this guide surface.
  • the baffle can between the center of rotation of the tool and the cutting element straight or curved, in particular a spiral Training is provided. After that, the guide surface is after Formed like a turbine blade, so that upon rotation of the tool a conveying effect for the air is created.
  • the method for operating the processing device preferably for leveling stones, that sets with at least one cutting element provided rotating tool mounted on a spindle and is rotationally driven.
  • a gas to the center of rotation of the tool and from there via a Fluid channel is passed to the at least one cutting element, wherein the gas, preferably before it enters the medium, liquid is added.
  • the gas is preferably air, the liquid is preferred Water. It has proved to be advantageous if the liquid dispersed in the gas, especially in the form of droplets, is added.
  • a brick 15 is shown, which must be ground flat prior to its use on the end sides. For this purpose, it is conveyed in the direction of the arrow by a processing device, which is shown only very schematically in the figure. Shown are four grinding wheels, two of which are arranged one behind the other in the conveying direction, which are positioned on both sides of the plane surfaces of the brick 15. When passing the brick 15 on the tools 2, it is ground to the required or desired level.
  • a processing device 1 which serves this purpose. According to the constellation according to FIG. 1 , therefore, four processing devices 1 according to FIG. 2 are used there.
  • the processing device 1 has a tool 2, which is designed as a grinding wheel.
  • the tool 2 rotates about a center of rotation 3; at a distance from this center of rotation 3 are a number of cutting elements 4 - arranged here - in the form of a Schleifbesatzes - on the circumference of the tool 2.
  • the tool 2 is rotatably mounted via a spindle 5, wherein the spindle 5 is driven by a drive motor 8.
  • the spindle is designed as a hollow shaft, so that the inner portion of the hollow shaft acts as means 6 for supplying air.
  • the air is conveyed by a blower 14 in the hollow shaft.
  • the air is deflected in the radial direction and conveyed via the fluid channel 7 as far as the cutting elements 4.
  • the tool is constructed as follows: It has a base body 9 which is formed substantially rotationally symmetrical, as shown in FIG 3a can be seen. At the side facing away from the hollow shaft 6 side 11 of the base body 9 is conical. This side 11 of the main body 9 is covered by a cover body 10, which can be seen in Figs. 4a and 4b . As can best be seen in FIG. 2 , the fluid channel 7 thus forms between the side 11 of the main body 9 and the side 12 of the covering body 10, the width B of which decreases with increasing radius.
  • the covering body 10 has a deflecting section 16 designed to be favorable in terms of flow (see Fig. 4b ), which deflects the air striking the deflecting section 16 in the axial direction through the hollow shaft 6 into the radial direction and conveys it into the fluid channel 7.
  • the air can be conveyed through a fan 14 into the hollow shaft 6.
  • air conveying devices in the form of guide surfaces 13 can be arranged on the covering body 10, which entail that air is sucked over the hollow shaft 6 during rotation of the tool (see arrow of the direction of rotation in FIG. 4 a) and is conveyed through the fluid channel 7 in the direction of cutting element 4.
  • the guide surfaces 13 are formed turbine blade similar, whereby the delivery effect is accomplished.
  • the cutting elements 4 are screwed to the main body 9 as interchangeable inserts.
  • a device can be integrated with the water in droplet form can be introduced into the air jet. This can be achieved that increases the heat capacity of the fluid jet, so that the ability to dissipate heat at the location of the cutting element 4 is improved. In the same way dust can be bound and removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Milling Processes (AREA)
  • Shovels (AREA)
  • Crushing And Grinding (AREA)

Abstract

The grinding or milling device (1) has a rotating tool (2) with a center of rotation (3) and at least one cutting element (4). There is a system (6) for supplying a fluid such as air to the center of rotation of the tool. The tool has at least one channel (7) in it connecting the center of rotation to the cutting element for the supply of air.

Description

Die Erfindung betrifft eine Bearbeitungsvorrichtung, insbesondere eine Schleif- oder Fräsvorrichtung, vorzugsweise zum Planieren von Steinen, mit einem rotierenden Werkzeug, das ein Drehzentrum aufweist sowie mindestens ein Schneidelement, das an einem vom Drehzentrum entfernten Ort angeordnet ist, wobei das rotierende Werkzeug mittels einer Spindel gelagert und drehangetrieben ist. Des weiteren betrifft die Erfindung ein Verfahren zum Betreiben der Bearbeitungsvorrichtung.The invention relates to a processing device, in particular a Grinding or milling device, preferably for leveling stones, with a rotating tool that has a turning center as well at least one cutting element located at a distance from the center of rotation Location is arranged, wherein the rotating tool by means of a Spindle stored and rotationally driven. Furthermore, the concerns Invention a method for operating the processing device.

Bei der Herstellung und Bearbeitung von Steinen und Kunststeinen, insbesondere von Ziegelsteinen oder Steinrohlingen oder ähnlichen keramischen Werkstücken, stellt sich unter anderem die Aufgabe, derartige Steine an parallelen Flächen zu schleifen bzw. zu fräsen, um sie auf das benötigte bzw. gewünschte Maß zu bringen.In the production and processing of stones and artificial stones, in particular bricks or stone blanks or the like ceramic workpieces, arises, inter alia, the task of such Grind or cut stones on parallel surfaces to open them to bring the required or desired level.

In der EP 0 785 839 B1 ist ein Verfahren und eine zugehörige Vorrichtung zum seitlichen Planieren solcher Steine offenbart. Zur Bearbeitung des Steins kommt ein rotierendes Fräs- bzw. Schleifwerkzeug zum Einsatz, das eine rotierende Scheibe aufweist, deren Umfang mit Schneidelementen besetzt ist. Bei diesen Schneidelementen kann es sich um solche mit geometrisch bestimmter Schneide handeln (Fräswerkzeug) bzw. um eines mit geometrisch unbestimmter Schneide (Schleifwerkzeug). EP 0 785 839 B1 discloses a method and associated apparatus for laterally leveling such stones. For machining the stone, a rotating milling or grinding tool is used, which has a rotating disk whose circumference is occupied by cutting elements. These cutting elements may be those with a geometrically determined cutting edge (milling tool) or one with a geometrically indefinite cutting edge (grinding tool).

Eine Vorrichtung zum beidseitigen Beschleifen eines Steins ist auch aus der DE 296 13 831 U1 bekannt. Auch bei dieser Lösung kommen die genannten rotierenden Schleifwerkzeuge zum Einsatz.A device for two-sided grinding of a stone is also known from DE 296 13 831 U1 . Also in this solution, the aforementioned rotating grinding tools are used.

Beim Maßschleifen eines Steins mittels der genannten Bearbeitungsvorrichtung stellt der dabei entstehende Staub ein erhebliches Problem dar. Er verunreinigt die Bearbeitungsvorrichtung und kann über die Dichtungen bis in die Lager der Spindel vordringen und diese durch sein abrasives Verhalten zerstören. Generell erhöht der die gesamte Bearbeitungsvorrichtung verunreinigende Staub den Verschleiß der das Werkzeug antreibenden Teile. Damit nimmt die Standzeit der Bearbeitungsvorrichtung ab. Ferner hat es sich als problematisch herausgestellt, dass der Bearbeitungsvorgang eine erhebliche Hitzeentwicklung verursacht, so dass das Werkzeug und die Bearbeitung selber einer hohen thermischen Belastung ausgesetzt sind. All dies führt im Ergebnis zur Herabsetzung der maximalen Schleifgeschwindigkeit und zur Verringerung der Schliffqualität.When custom grinding a stone by means of said processing device represents the resulting dust is a significant problem. It contaminates the processing device and can over the seals penetrate into the bearing of the spindle and this by its abrasive Destroy behavior. Generally, this increases the overall processing device Dirty dust the wear of the tool driving parts. This increases the service life of the processing device from. Furthermore, it has turned out to be problematic that the Machining process causes a significant heat, so that the tool and the machining itself a high thermal Are exposed to stress. All this leads to the result of the reduction the maximum grinding speed and to reduce the grinding quality.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Bearbeitungsvorrichtung der gattungsgemäßen Art derart weiterzubilden, dass die Belastung der Vorrichtung mit abrasiven Staubpartikeln vermindert wird. Damit soll die Standzeit der Vorrichtung erhöht werden. Ferner soll die Vorrichtung so weiterentwickelt werden, dass die Wärmeentwicklung im Betrieb reduziert wird. Weiterhin soll ein Verfahren zum Betreiben der Bearbeitungsvorrichtung vorgeschlagen werden, mit dem diese Zielsetzung unterstützt und erreicht werden kann. The invention is therefore based on the object , a processing device of the generic type such that the load on the device is reduced with abrasive dust particles. This is intended to increase the service life of the device. Furthermore, the device should be developed so that the heat generation is reduced during operation. Furthermore, a method for operating the processing device is proposed, with which this objective can be supported and achieved.

Die Lösung dieser Aufgabe durch die Erfindung ist vorrichtungsgemäß dadurch gekennzeichnet, dass die Bearbeitungsvorrichtung Mittel aufweist, mit denen ein Fluid, insbesondere Luft, zum Drehzentrum des Werkzeugs geleitet werden kann, und dass das Werkzeug weiterhin mindestens einen Fluidkanal aufweist, der das Drehzentrum des Werkzeugs mit dem mindestens einen Schneidelement fluidisch verbindet.The solution of this object by the invention is according to the device characterized in that the processing device comprises means by which a fluid, in particular air, can be passed to the center of rotation of the tool, and that the tool further comprises at least one fluid channel, which with the center of rotation of the tool the fluidically connects at least one cutting element.

Demgemäss ist also vorgesehen, dass die Bearbeitungsvorrichtung so ausgeführt ist, dass es möglich wird, eine vom Zentrum des Bearbeitungswerkzeugs ausgehende Luftströmung bis zum Rand des Werkzeugs zu den Schneidelementen zu leiten und dadurch zum einen den anfallenden Staub nach außen abzutransportieren und zum anderen eine Kühlung der Werkzeugeingriffsflächen zu bewirken. Damit wird nicht nur die Bearbeitungsvorrichtung vor der Staubeinwirkung geschützt, es wird auch möglich, die Betriebstemperatur signifikant herabzusetzen, da der durch das Werkzeug geleitete Luftstrahl dieses kühlt.Accordingly, it is therefore provided that the processing device so is executed that it becomes possible, one from the center of the machining tool Outgoing air flow to the edge of the tool to lead to the cutting elements and thereby on the one hand the resulting Dust transported to the outside and on the other a cooling cause the tool engagement surfaces. This will not only the Machining device protected from the action of dust, it is also possible to reduce the operating temperature significantly, as the air jet guided by the tool cools this.

Gemäß einer ersten Weiterbildung ist vorgesehen, dass das Mittel zum Zuleiten von Fluid, also insbesondere von Luft, zum Drehzentrum des Werkzeugs als Hohlwelle ausgebildet ist, die als Spindel des Werkzeugs dient. Die Hohlwelle kann dabei koaxial in einem im Wesentlichen zylinderförmig ausgebildeten Antriebsmotor gelagert sein.According to a first development, it is provided that the means for Supplying fluid, so in particular of air, to the center of rotation of the Tool is designed as a hollow shaft, which serves as a spindle of the tool serves. The hollow shaft can be coaxial in a substantially be stored cylinder-shaped drive motor.

Eine konstruktiv besonders einfache Ausgestaltung der erfindungsgemäßen Bearbeitungsvorrichtung wird erreicht, wenn das Werkzeug einen Grundkörper sowie einen Abdeckkörper aufweist, zwischen denen der mindestens eine Fluidkanal ausgebildet ist. Dabei können sowohl der Grundkörper als auch der Abdeckkörper im Wesentlichen rotationssymmetrisch ausgebildet sein. Weiterhin hat es sich als vorteilhaft erwiesen, dass die Breite des Fluidkanals mit steigendem radialen Abstand vom Drehzentrum abnimmt; hierbei ist insbesondere an eine lineare Abnahme - zumindest über einen Abschnitt - gedacht.A structurally particularly simple embodiment of the invention Machining device is reached when the tool a Base body and a cover body, between which the at least one fluid channel is formed. It can both the Main body and the cover body substantially rotationally symmetrical be educated. Furthermore, it has proved to be advantageous that the width of the fluid channel with increasing radial distance from Turning center decreases; this is in particular a linear decrease - at least over a section - thought.

Der Grundkörper kann an seiner dem Fluidkanal zugewandten Seite, zumindest über einen Abschnitt hinweg, kegelförmig ausgeformt sein. Entsprechend kann der Abdeckkörper an seiner dem Fluidkanal zugewandten Seite eben ausgeformt werden.The base body can, on its side facing the fluid channel, be conically shaped at least over a section. Accordingly, the cover body facing at its the fluid channel Side just be formed.

Die Bewerkstelligung der Luftströmung über das Drehzentrum des Werkzeugs und den Fluidkanal bis zu den Schneidelementen des Werkzeugs kann sowohl aktiv als auch passiv erfolgen. Hierunter ist zu verstehen, dass im einen Falle, also beim aktiven Erzeugen der Luftströmung, das Mittel, mit dem das Fluid zum Drehzentrum des Werkzeugs geleitet werden kann, mit einem Gebläse, einem Kompressor, einer Pumpe oder ähnlichem in Verbindung steht. Falls erforderlich kann an der Vorrichtung selbstverständlich auch eine aktive und passive Erzeugen der Luftströmung vorgesehen seinThe achievement of the air flow over the center of rotation of the Tool and the fluid channel to the cutting elements of the tool can be both active and passive. Below is too understand that in one case, ie when actively generating the air flow, the means by which the fluid to the center of rotation of the tool can be directed with a blower, a compressor, a Pump or the like in connection. If necessary can Of course, the device also active and passive generating be provided the air flow

Im anderen Falle, also bei passiver Erzeugung der Luftströmung, sind Elemente (Luftfördereinrichtungen) in der Bearbeitungsvorrichtung vorgesehen, die selber die Luftströmung ohne ein Gebläse oder Ähnliches erzeugen. Mit Vorteil ist hierzu vorgesehen, dass der Grundkörper und/oder der Abdeckkörper mindestens eine Leitfläche aufweist, entlang derer das Fluid, insbesondere Luft, vom Drehzentrum des Werkzeugs zu dem mindestens einen Schneidelement geleitet werden kann; dabei weist insbesondere der Abdeckkörper diese Leitfläche auf. Die Leitfläche kann zwischen dem Drehzentrum des Werkzeugs und dem Schneidelement gerade oder bogenförmig verlaufen, wobei insbesondere eine spiralförmige Ausbildung vorgesehen ist. Hiernach ist die Leitfläche also nach Art einer Turbinenschaufel ausgeformt, so dass bei Rotation des Werkzeugs eine Förderwirkung für die Luft entsteht. In the other case, ie with passive generation of the air flow, are Elements (air conveyors) in the processing device provided itself the air flow without a fan or the like produce. Advantageously, it is provided that the basic body and / or the cover body has at least one guide surface, along derer the fluid, in particular air, from the center of rotation of the tool to the at least one cutting element can be passed; points in particular the covering body on this guide surface. The baffle can between the center of rotation of the tool and the cutting element straight or curved, in particular a spiral Training is provided. After that, the guide surface is after Formed like a turbine blade, so that upon rotation of the tool a conveying effect for the air is created.

Das Verfahren zum Betreiben der Bearbeitungsvorrichtung, vorzugsweise zum Planieren von Steinen, setzt das mit mindestens einem Schneidelement versehene rotierende Werkzeug ein, das auf einer Spindel gelagert und drehangetrieben ist. Verfahrensgemäß ist vorgesehen, dass über ein Mittel ein Gas zum Drehzentrum des Werkzeugs und von dort über einen Fluidkanal zu dem mindestens einen Schneidelement geleitet wird, wobei dem Gas, vorzugsweise vor dessen Eintritt in die Mittel, Flüssigkeit zugegeben wird. Das Gas ist bevorzugt Luft, die Flüssigkeit ist bevorzugt Wasser. Dabei hat es sich als vorteilhaft erwiesen, wenn die Flüssigkeit dem Gas fein verteilt, insbesondere in Form von Tröpfchen, zugegeben wird.The method for operating the processing device, preferably for leveling stones, that sets with at least one cutting element provided rotating tool mounted on a spindle and is rotationally driven. According to the method is provided that over a Means a gas to the center of rotation of the tool and from there via a Fluid channel is passed to the at least one cutting element, wherein the gas, preferably before it enters the medium, liquid is added. The gas is preferably air, the liquid is preferred Water. It has proved to be advantageous if the liquid dispersed in the gas, especially in the form of droplets, is added.

Mit der verfahrensgemäßen Vorgehensweise wird erreicht, dass sowohl der Staubableiteffekt als auch der Kühleffekt erhöht werden kann. Die das Werkzeug durchströmende Luft wird also mit Wasser versehen, so dass sich ein feiner Nebel bildet, dessen Reinigungs- und Kühlwirkung wesentlich höher ist als diejenige von reiner Luft.With the procedural approach is achieved that both the Staubableiteffekt and the cooling effect can be increased. The the air flowing through the tool is thus provided with water, so that forms a fine mist, its cleaning and cooling effect is much higher than that of pure air.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.
Es zeigen:

Fig. 1
schematisch in dreidimensionaler Ansicht den Einsatz von Schleifwerkzeugen beim Planieren von Steinen,
Fig. 2
den Schnitt durch die Bearbeitungsvorrichtung zum Planieren von Steinen,
Fig. 3a / 3b
den Grundkörper des zum Einsatz kommenden Werkzeugs in der Vorderansicht bzw. in der geschnittenen Seitenansicht und
Fig. 4a / 4b
den Abdeckkörper des Werkzeugs in der Vorderansicht bzw. in der geschnittenen Seitenansicht.
In the drawing, an embodiment of the invention is shown.
Show it:
Fig. 1
schematically in three-dimensional view the use of abrasive tools in the grading of stones,
Fig. 2
the section through the processing device for leveling stones,
Fig. 3a / 3b
the main body of the tool used in the front view and in the sectional side view and
Fig. 4a / 4b
the cover body of the tool in the front view and in the sectional side view.

In Fig. 1 ist ein Ziegelstein 15 dargestellt, der vor seiner Verwendung an den Endseiten plan geschliffen werden muss. Hierzu wird er in Richtung des Pfeils durch eine Bearbeitungsvorrichtung gefördert, die in der Figur nur sehr schematisch dargestellt ist. Gezeigt sind vier Schleifscheiben, von denen jeweils zwei in Förderrichtung hintereinander angeordnet sind, wobei diese beidseits der Planflächen des Ziegelsteins 15 positioniert sind. Beim Vorbeilaufen des Ziegelsteins 15 an den Werkzeugen 2 wird er auf das benötigte bzw. gewünschte Maß geschliffen.In Fig. 1 , a brick 15 is shown, which must be ground flat prior to its use on the end sides. For this purpose, it is conveyed in the direction of the arrow by a processing device, which is shown only very schematically in the figure. Shown are four grinding wheels, two of which are arranged one behind the other in the conveying direction, which are positioned on both sides of the plane surfaces of the brick 15. When passing the brick 15 on the tools 2, it is ground to the required or desired level.

In Fig. 2 ist eine Bearbeitungsvorrichtung 1 dargestellt, die diesem Zweck dient. Gemäß der Konstellation nach Fig. 1 werden also vier Bearbeitungsvorrichtungen 1 gemäß Fig. 2 dort eingesetzt. Die Bearbeitungsvorrichtung 1 weist ein Werkzeug 2 auf, das als Schleifscheibe ausgebildet ist. Das Werkzeug 2 rotiert um ein Drehzentrum 3; mit Abstand von diesem Drehzentrum 3 sind eine Anzahl Schneidelemente 4 - hier in Form eines Schleifbesatzes - am Umfang des Werkzeugs 2 angeordnet. Das Werkzeug 2 ist über eine Spindel 5 drehbar gelagert, wobei die Spindel 5 von einem Antriebsmotor 8 angetrieben wird.In Fig. 2 , a processing device 1 is shown, which serves this purpose. According to the constellation according to FIG. 1 , therefore, four processing devices 1 according to FIG. 2 are used there. The processing device 1 has a tool 2, which is designed as a grinding wheel. The tool 2 rotates about a center of rotation 3; at a distance from this center of rotation 3 are a number of cutting elements 4 - arranged here - in the form of a Schleifbesatzes - on the circumference of the tool 2. The tool 2 is rotatably mounted via a spindle 5, wherein the spindle 5 is driven by a drive motor 8.

Wie Fig. 2 entnommen werden kann, ist die Spindel dabei als Hohlwelle ausgeführt, so dass der innere Bereich der Hohlwelle als Mittel 6 zum Zuleiten von Luft fungiert. Im vorliegenden Falle wird die Luft mit einem Gebläse 14 in die Hohlwelle gefördert. An dem werkzeugseitigen Ende der Hohlwelle 6 wird die Luft in radialer Richtung umgelenkt und über den Fluidkanal 7 bis zu den Schneidelementen 4 gefördert.As can be seen from Fig. 2 , the spindle is designed as a hollow shaft, so that the inner portion of the hollow shaft acts as means 6 for supplying air. In the present case, the air is conveyed by a blower 14 in the hollow shaft. At the tool-side end of the hollow shaft 6, the air is deflected in the radial direction and conveyed via the fluid channel 7 as far as the cutting elements 4.

Zur Ausbildung der Luftpassage von der Hohlwelle 6 über den Bereich des Drehzentrums 3 des Werkzeugs 2 und den Fluidkanal 7 bis zum Schneidelement 4 ist das Werkzeug wie folgt aufgebaut: Es weist einen Grundkörper 9 auf, der im Wesentlichen rotationssymmetrisch ausgebildet ist, wie es in Fig. 3a gesehen werden kann. An der von der Hohlwelle 6 abgewandten Seite 11 ist der Grundkörper 9 kegelförmig ausgebildet. Diese Seite 11 des Grundkörpers 9 wird von einem Abdeckkörper 10 abgedeckt, der in den Fig. 4a und 4b zu sehen ist. Wie es am besten in Fig. 2 gesehen werden kann, bildet sich damit zwischen der Seite 11 des Grundkörpers 9 und der Seite 12 des Abdeckkörpers 10 der Fluidkanal 7 aus, dessen Breite B mit zunehmendem Radius geringer wird. Der Abdeckkörper 10 weist im Bereich des Drehzentrums 3 einen strömungstechnisch günstig ausgebildeten Umlenkabschnitt 16 auf (s. Fig. 4b), der die in Achsrichtung durch die Hohlwelle 6 auf den Umlenkabschnitt 16 auftreffende Luft in die radiale Richtung umlenkt und in den Fluidkanal 7 fördert.To form the air passage from the hollow shaft 6 over the region of the center of rotation 3 of the tool 2 and the fluid channel 7 to the cutting element 4, the tool is constructed as follows: It has a base body 9 which is formed substantially rotationally symmetrical, as shown in FIG 3a can be seen. At the side facing away from the hollow shaft 6 side 11 of the base body 9 is conical. This side 11 of the main body 9 is covered by a cover body 10, which can be seen in Figs. 4a and 4b . As can best be seen in FIG. 2 , the fluid channel 7 thus forms between the side 11 of the main body 9 and the side 12 of the covering body 10, the width B of which decreases with increasing radius. In the region of the center of rotation 3, the covering body 10 has a deflecting section 16 designed to be favorable in terms of flow (see Fig. 4b ), which deflects the air striking the deflecting section 16 in the axial direction through the hollow shaft 6 into the radial direction and conveys it into the fluid channel 7.

Wie bereits erwähnt - siehe hierzu Fig. 2 -, kann die Luft durch ein Gebläse 14 in die Hohlwelle 6 gefördert werden. Es ist jedoch nicht unbedingt notwendig, dass eine insofern aktive Versorgung mit Luft erfolgt. In Fig. 4 ist vielmehr zu sehen, dass Luftfördereinrichtungen in Form von Leitflächen 13 auf dem Abdeckkörper 10 angeordnet sein können, die zur Folge haben, dass bei Rotation des Werkzeugs (siehe Pfeil der Drehrichtung in Fig. 4a) Luft über die Hohlwelle 6 angesaugt und durch den Fluidkanal 7 in Richtung Schneidelement 4 gefördert wird. Wie in Fig. 4a zu erkennen ist, sind die Leitflächen 13 turbinenschaufelähnlich ausgeformt, wodurch der Fördereffekt bewerkstelligt wird.As already mentioned - see FIG. 2 -, the air can be conveyed through a fan 14 into the hollow shaft 6. However, it is not absolutely necessary to have an active supply of air. On the contrary, it can be seen in FIG. 4 that air conveying devices in the form of guide surfaces 13 can be arranged on the covering body 10, which entail that air is sucked over the hollow shaft 6 during rotation of the tool (see arrow of the direction of rotation in FIG. 4 a) and is conveyed through the fluid channel 7 in the direction of cutting element 4. As can be seen in Fig. 4a , the guide surfaces 13 are formed turbine blade similar, whereby the delivery effect is accomplished.

Wie in Fig. 3b gesehen werden kann, ist im Ausführungsbeispiel vorgesehen, dass die Schneidelemente 4 als auswechselbare Einsätze an den Grundkörper 9 angeschraubt werden. Hierfür weist der Grundkörper 9 - siehe hierzu Fig. 3a - acht Bohrungen gleichmäßig über den Umfang verteilt auf, an die die Werkzeugträger mit den Schneidelementen 4 angeschraubt werden können. As can be seen in FIG. 3b , it is provided in the exemplary embodiment that the cutting elements 4 are screwed to the main body 9 as interchangeable inserts. For this purpose, the base body 9 - see Fig. 3a - eight holes evenly distributed over the circumference, to which the tool carrier can be screwed to the cutting elements 4.

In Fig. 2 ist nicht dargestellt, dass in den Luftströmungsweg, z. B. zwischen Gebläse 14 und Antriebsmotor 8, eine Vorrichtung integriert sein kann, mit der Wasser in Tröpfchenform in den Luftstrahl eingebracht werden kann. Damit kann erreicht werden, dass sich die Wärmekapazität des Fluidstrahls erhöht, so dass die Fähigkeit zum Abtransport von Wärme am Ort des Schneidelements 4 verbessert wird. In gleicher Weise kann dadurch Staub gebunden und abgeführt werden.In Fig. 2 is not shown that in the air flow path, z. B. between blower 14 and drive motor 8, a device can be integrated with the water in droplet form can be introduced into the air jet. This can be achieved that increases the heat capacity of the fluid jet, so that the ability to dissipate heat at the location of the cutting element 4 is improved. In the same way dust can be bound and removed.

Claims (18)

Bearbeitungsvorrichtung (1), insbesondere Schleif- oder Fräsvorrichtung, vorzugsweise zum Planieren von Steinen, mit einem rotierenden Werkzeug (2), das ein Drehzentrum (3) aufweist sowie mindestens ein Schneidelement (4), das an einem vom Drehzentrum (3) entfernten Ort angeordnet ist, wobei das rotierende Werkzeug (2) mittels einer Spindel (5) gelagert und drehangetrieben ist,
dadurch gekennzeichnet, dass die Vorrichtung (1) Mittel (6) aufweist, mit denen ein Fluid, insbesondere Luft, zum Drehzentrum (3) des Werkzeugs (2) geleitet werden kann, und
dass das Werkzeug (2) weiterhin mindestens einen Fluidkanal (7) aufweist, der das Drehzentrum (3) des Werkzeugs (2) mit dem mindestens einen Schneidelement (4) fluidisch verbindet.Machining device (1), in particular grinding or milling device, preferably for leveling stones, with a rotating tool (2) having a center of rotation (3) and at least one cutting element (4) at a location remote from the center of rotation (3) is arranged, wherein the rotating tool (2) by means of a spindle (5) is mounted and rotationally driven,
characterized in that the device (1) comprises means (6) with which a fluid, in particular air, to the center of rotation (3) of the tool (2) can be passed, and
that the tool (2) further comprises at least one fluid channel (7) which fluidly connects the center of rotation (3) of the tool (2) with the at least one cutting element (4). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass das Mittel (6) zum Zuleiten von Fluid zum Drehzentrum (3) des Werkzeugs (2) als Hohlwelle ausgebildet ist, die als Spindel (5) des Werkzeugs (2) dient. Device according to claim 1,
characterized in that the means (6) for supplying fluid to the center of rotation (3) of the tool (2) is designed as a hollow shaft serving as a spindle (5) of the tool (2). Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet, dass die Hohlwelle (6) koaxial in einem im Wesentlichen zylinderförmig aufgebildeten Antriebsmotor (8) gelagert ist.Device according to claim 2,
characterized in that the hollow shaft (6) is mounted coaxially in a substantially cylindrically shaped drive motor (8). Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das Werkzeug (2) einen Grundkörper (9) sowie einen Abdeckkörper (10) aufweist, zwischen denen der mindestens eine Fluidkanal (7) ausgebildet ist.Device according to one of claims 1 to 3,
characterized in that the tool (2) has a base body (9) and a cover body (10), between which the at least one fluid channel (7) is formed. Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, dass sowohl der Grundkörper (9) als auch der Abdeckkörper (10) im Wesentlichen rotationssymmetrisch ausgebildet sind.Device according to claim 4,
characterized in that both the base body (9) and the cover body (10) are formed substantially rotationally symmetrical. Vorrichtung nach Anspruch 4 oder 5,
dadurch gekennzeichnet, dass die Breite (B) des Fluidkanals (7) mit steigendem Abstand vom Drehzentrum (3) abnimmt.Device according to claim 4 or 5,
characterized in that the width (B) of the fluid channel (7) decreases with increasing distance from the center of rotation (3). Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass die Breite (B) des Fluidkanals (7) zumindest über einen Abschnitt hinweg linear abnimmt.Device according to claim 6,
characterized in that the width (B) of the fluid channel (7) linearly decreases over at least a portion of time. Vorrichtung nach einem der Ansprüche 4 bis 7,
dadurch gekennzeichnet, dass der Grundkörper (9) an seiner dem Fluidkanal (7) zugewandten Seite (11) zumindest über einen Abschnitt hinweg kegelförmig ausgeformt ist. Device according to one of claims 4 to 7,
characterized in that the base body (9) on its the fluid channel (7) facing side (11) is formed conically at least over a portion of time. Vorrichtung nach einem der Ansprüche 4 bis 8,
dadurch gekennzeichnet, dass der Abdeckkörper (10) an seiner dem Fluidkanal (7) zugewandten Seite (12) eben ausgeformt ist.Device according to one of claims 4 to 8,
characterized in that the cover body (10) on its the fluid channel (7) facing side (12) is formed flat. Vorrichtung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass im Werkzeug (2) eine Fluidfördereinrichtung (13) angeordnet bzw. integriert ist.Device according to one of claims 1 to 9,
characterized in that in the tool (2) a fluid conveying device (13) is arranged or integrated. Vorrichtung nach einem der Ansprüche 4 bis 10,
dadurch gekennzeichnet, dass der Grundkörper (9) und/oder der Abdeckkörper (10) mindestens eine Leitfläche (13) aufweist, entlang derer Fluid, insbesondere Luft, vom Drehzentrum (3) des Werkzeugs (2) zu dem mindestens einen Schneidelement (4) geleitet und/oder gefördert werden kann.Device according to one of claims 4 to 10,
characterized in that the base body (9) and / or the covering body (10) has at least one guide surface (13) along which fluid, in particular air, from the center of rotation (3) of the tool (2) to the at least one cutting element (4) managed and / or promoted. Vorrichtung nach Anspruch 11,
dadurch gekennzeichnet, dass der Abdeckkörper (10) die mindestens eine Leitfläche (13) aufweist.Device according to claim 11,
characterized in that the cover body (10) has the at least one guide surface (13). Vorrichtung nach Anspruch 11 oder 12,
dadurch gekennzeichnet, dass die mindestens eine Leitfläche (13) zwischen Drehzentrum (3) und Schneidelement (4) bogenförmig verläuft.Device according to claim 11 or 12,
characterized in that the at least one guide surface (13) between the center of rotation (3) and the cutting element (4) is arcuate. Vorrichtung nach Anspruch 13,
dadurch gekennzeichnet, dass die mindestens eine Leitfläche (13) spiralförmig verläuft. Device according to claim 13,
characterized in that the at least one guide surface (13) extends spirally. Vorrichtung nach einem der Ansprüche 1 bis 14,
dadurch gekennzeichnet, dass das Mittel (6), mit dem ein Fluid zum Drehzentrum (3) des Werkzeugs (2) geleitet werden kann, mit einem Gebläse (14) in Verbindung steht.Device according to one of claims 1 to 14,
characterized in that the means (6), with which a fluid can be passed to the center of rotation (3) of the tool (2), is in communication with a fan (14). Verfahren zum Betreiben der Bearbeitungsvorrichtung (1) nach einem der Ansprüche 1 bis 15, vorzugsweise zum Planieren von Steinen, bei dem ein mit mindestens einem Schneidelement (4) versehenes rotierendes Werkzeug (2) auf einer Spindel (5) gelagert und drehangetrieben wird,
dadurch gekennzeichnet, dass über ein Mittel (6) ein Gas zum Drehzentrum (3) des Werkzeugs (2) und von dort über einen Fluidkanal (7) zu dem mindestens einen Schneidelement (4) geleitet wird, wobei dem Gas, vorzugsweise vor dessen Eintritt in die Mittel (6), Flüssigkeit zugegeben wird.Method for operating the processing device (1) according to one of Claims 1 to 15, preferably for leveling stones, in which a rotating tool (2) provided with at least one cutting element (4) is mounted on a spindle (5) and rotated,
characterized in that via a means (6) a gas to the center of rotation (3) of the tool (2) and from there via a fluid channel (7) to the at least one cutting element (4) is passed, wherein the gas, preferably before it enters in the means (6), liquid is added. Verfahren nach Anspruch 16,
dadurch gekennzeichnet, dass das Gas Luft und die Flüssigkeit Wasser ist.Method according to claim 16,
characterized in that the gas is air and the liquid is water. Verfahren nach Anspruch 16 oder 17,
dadurch gekennzeichnet, dass die Flüssigkeit dem Gas fein verteilt, insbesondere in Form von Tröpfchen, zugegeben wird.Method according to claim 16 or 17,
characterized in that the liquid is finely distributed to the gas, in particular in the form of droplets added.
EP02020380A 2001-12-18 2002-09-12 Grinding or milling device and method of use of said grinding or milling device Expired - Lifetime EP1321232B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10162425A DE10162425A1 (en) 2001-12-18 2001-12-18 Processing device and method for operating a processing device
DE10162425 2001-12-18

Publications (2)

Publication Number Publication Date
EP1321232A1 true EP1321232A1 (en) 2003-06-25
EP1321232B1 EP1321232B1 (en) 2009-03-11

Family

ID=7709828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020380A Expired - Lifetime EP1321232B1 (en) 2001-12-18 2002-09-12 Grinding or milling device and method of use of said grinding or milling device

Country Status (4)

Country Link
EP (1) EP1321232B1 (en)
AT (1) ATE424969T1 (en)
DE (2) DE10162425A1 (en)
ES (1) ES2320633T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1859904A1 (en) * 2006-05-23 2007-11-28 Saint-Gobain Abrasives, Inc. Coolant delivery system for grinding tools
CN103998183A (en) * 2011-12-30 2014-08-20 圣戈班磨料磨具有限公司 Grinding ring with dual function grinding segments
CN108637863A (en) * 2018-06-30 2018-10-12 盐城市锐克斯研磨科技有限公司 A kind of good abrasive machine of heat dissipation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057336B3 (en) * 2004-11-27 2006-01-05 Wassmer, Paul Dry grinding machine for ceramic or cement-bonded workpieces has eccentric air input to intermediate cavity between guide sheet and carrier
DE102006010975B4 (en) 2006-03-09 2008-04-03 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg Grinding wheel for machining objects, in particular natural or artificial stones
DE202007014470U1 (en) 2007-10-16 2008-02-07 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg Grinding wheel for a machining of objects, in particular stones, bricks or the like, or wheel body or slip ring or closure piece for such a grinding wheel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2089040A (en) * 1935-07-05 1937-08-03 Gardner Machine Co Grinding machine and method of grinding
DE707628C (en) * 1937-02-05 1941-06-27 Ver Deutscher Werkzeugmaschine Device for supplying cooling, lubricating and flushing fluids to machine tools with rotating tools
US3181281A (en) * 1962-07-17 1965-05-04 Tysaman Machine Company Inc Grinding wheels
US5423717A (en) * 1993-10-04 1995-06-13 Ford Motor Company Grinding wheel assembly
EP0758573A1 (en) * 1995-08-12 1997-02-19 KREBS & RIEDEL SCHLEIFSCHEIBENFABRIK GMBH & CO. KG Diamond grinding tool for surface machining of natural or artificial stone
US5993297A (en) * 1994-09-06 1999-11-30 Makino Inc. Superabrasive grinding wheel with integral coolant passage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7214226U (en) * 1972-11-16 Bayerische Maschinenfab Schlageter F J Segment disc, in particular made of carborundum, for the machining of workpieces made of stone, artificial stone or the like
DE807881C (en) * 1949-11-19 1951-07-05 Hurth Masch Zahnrad Carl Process for cooling the tools of metal working machines
CH554727A (en) * 1972-08-04 1974-10-15 Staehli Arthur Werner MACHINE FOR LAPPING AND POLISHING.
DE19846765C2 (en) * 1997-10-24 2001-09-27 Freimut Storrer Device for grinding and / or polishing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2089040A (en) * 1935-07-05 1937-08-03 Gardner Machine Co Grinding machine and method of grinding
DE707628C (en) * 1937-02-05 1941-06-27 Ver Deutscher Werkzeugmaschine Device for supplying cooling, lubricating and flushing fluids to machine tools with rotating tools
US3181281A (en) * 1962-07-17 1965-05-04 Tysaman Machine Company Inc Grinding wheels
US5423717A (en) * 1993-10-04 1995-06-13 Ford Motor Company Grinding wheel assembly
US5993297A (en) * 1994-09-06 1999-11-30 Makino Inc. Superabrasive grinding wheel with integral coolant passage
EP0758573A1 (en) * 1995-08-12 1997-02-19 KREBS & RIEDEL SCHLEIFSCHEIBENFABRIK GMBH & CO. KG Diamond grinding tool for surface machining of natural or artificial stone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1859904A1 (en) * 2006-05-23 2007-11-28 Saint-Gobain Abrasives, Inc. Coolant delivery system for grinding tools
US7384329B2 (en) 2006-05-23 2008-06-10 Saint-Gobain Abrasives Technology Company Coolant delivery system for grinding tools
CN103998183A (en) * 2011-12-30 2014-08-20 圣戈班磨料磨具有限公司 Grinding ring with dual function grinding segments
EP2797718A4 (en) * 2011-12-30 2015-10-21 Saint Gobain Abrasives Inc Grinding ring with dual function grinding segments
CN108637863A (en) * 2018-06-30 2018-10-12 盐城市锐克斯研磨科技有限公司 A kind of good abrasive machine of heat dissipation

Also Published As

Publication number Publication date
ATE424969T1 (en) 2009-03-15
ES2320633T3 (en) 2009-05-27
DE10162425A1 (en) 2003-07-10
DE50213346D1 (en) 2009-04-23
EP1321232B1 (en) 2009-03-11

Similar Documents

Publication Publication Date Title
EP0865878B1 (en) Cup-shaped grinding wheel
DE4326253C2 (en) Cooling and dust extraction device for a machine tool
DE20312499U1 (en) Sanding disc for grinding machine
EP1321232B1 (en) Grinding or milling device and method of use of said grinding or milling device
DE69318649T2 (en) Method and device for vacuum cleaning a grinding wheel
EP1832386B1 (en) Grinding wheel for machining objects, in particular natural or artificial stones
DE3525092A1 (en) Especially portable severing device, such as a hand-held circular saw, abrasive cutting device or the like
EP1413397A1 (en) Device for machining the edge of a workpiece
EP1004414B1 (en) Stone cutting tool with PCD cutting segments
DE3630189A1 (en) ANTI-ADJUSTING DEVICE FOR GRINDING BODY
EP2711117B1 (en) Cutting device with a splash guard and method for cutting workpieces
DE69801943T2 (en) Grinding wheel and method for manufacturing the same
DE10032449A1 (en) Grinding disc with circular conical grinding segments has cutting part, holder, cylindrical basic shape and flat part
DD223654A1 (en) SCHLEIFKOERPER, PREFERRED DOUBLE KEGELSCHLEIFKOERPER
DE102004057336B3 (en) Dry grinding machine for ceramic or cement-bonded workpieces has eccentric air input to intermediate cavity between guide sheet and carrier
DE10125448A1 (en) Grinding machine for finishing concrete or stone workpieces has rotary driven support disc and grinding tools inclined relative to workpiece support to allow air cooling when grinding parts are not in engagement
DE19852596C2 (en) Double surface grinding machine
DE29824804U1 (en) Tool for processing stone or stone-like materials
DE102007056331B4 (en) dressing tool
DE19700343C2 (en) Edge cutter
EP0087427B1 (en) Method for producing cylindrical parts by ultrasonic drilling and ultrasonic drilling device
DE334982C (en) Device for cutting glass, precious stones and similar hard objects
EP1787754B1 (en) Housing for a grinding wheel
AT526662A4 (en) Device for machining edges of flat workpieces
DE2821431A1 (en) Bowling alley channel surfacing machine - has blades mounted on tool head to be movable along inclined circular path

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

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

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20031103

AKX Designation fees paid

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

17Q First examination report despatched

Effective date: 20040827

17Q First examination report despatched

Effective date: 20040827

RTI1 Title (correction)

Free format text: GRINDING OR MILLING DEVICE AND METHOD OF USE OF SAID GRINDING OR MILLING DEVICE

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50213346

Country of ref document: DE

Date of ref document: 20090423

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: FREI PATENTANWALTSBUERO AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2320633

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090611

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090824

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

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

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090611

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

26N No opposition filed

Effective date: 20091214

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

Ref country code: MC

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

Effective date: 20090930

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

Effective date: 20090912

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090612

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

Ref country code: GB

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

Effective date: 20090912

Ref country code: AT

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

Effective date: 20090912

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

Ref country code: LU

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

Effective date: 20090912

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090311

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFUS

Owner name: KELLER HCW GMBH, DE

Free format text: FORMER OWNER: NOVOCERIC TRANSPORTANLAGEN GMBH, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: KEKKER GCW GMBH, DE

Effective date: 20111007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50213346

Country of ref document: DE

Representative=s name: ADVOTEC. PATENT- UND RECHTSANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50213346

Country of ref document: DE

Representative=s name: ADVOTEC. PATENT- UND RECHTSANWAELTE, DE

Effective date: 20120102

Ref country code: DE

Ref legal event code: R081

Ref document number: 50213346

Country of ref document: DE

Owner name: KELLER HCW GMBH, DE

Free format text: FORMER OWNER: NOVOCERIC TRANSPORTANLAGEN GMBH, 97638 MELLRICHSTADT, DE

Effective date: 20120102

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: KELLER HCW GMBH

Effective date: 20120312

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: POSTFACH, 8032 ZUERICH (CH)

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

Ref country code: IT

Payment date: 20210930

Year of fee payment: 20

Ref country code: CZ

Payment date: 20210901

Year of fee payment: 20

Ref country code: FR

Payment date: 20210927

Year of fee payment: 20

Ref country code: CH

Payment date: 20210923

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20210921

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20211123

Year of fee payment: 20

Ref country code: ES

Payment date: 20211019

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50213346

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220926

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20220912

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20220913

Ref country code: CZ

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20220912