EP1321232B1 - Dispositif de polissage ou de fraisage et méthode d'utilisation de ce dispositif de polissage ou de fraisage - Google Patents

Dispositif de polissage ou de fraisage et méthode d'utilisation de ce dispositif de polissage ou de fraisage Download PDF

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Publication number
EP1321232B1
EP1321232B1 EP02020380A EP02020380A EP1321232B1 EP 1321232 B1 EP1321232 B1 EP 1321232B1 EP 02020380 A EP02020380 A EP 02020380A EP 02020380 A EP02020380 A EP 02020380A EP 1321232 B1 EP1321232 B1 EP 1321232B1
Authority
EP
European Patent Office
Prior art keywords
tool
rotation
centre
fluid channel
cutting element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02020380A
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German (de)
English (en)
Other versions
EP1321232A1 (fr
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
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Filing date
Publication date
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Publication of EP1321232A1 publication Critical patent/EP1321232A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • 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 grinding or milling device according to the preamble of claim 1, for leveling stones. Furthermore, the invention relates to a method for operating the grinding or milling device according to the preamble of claim 13.
  • a device and associated Betreibungsvon are from the document DE 72114226 U known.
  • a rotating milling or grinding tool is used to process the stone Insert having a rotating disc 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 a stone is also from the DE 296 13 831 U1 known. Also in this solution, the aforementioned rotating grinding tools are used.
  • a 707 628 is a device for supplying cooling, draining and rinsing liquid, in which the liquid is passed through a hollow spindle.
  • the liquid is guided by a rotating together with the tool distributor body, which is provided with radial bores and circumferentially with outlet openings on the working surfaces.
  • the distributor body inside guide vanes, which suck the liquid.
  • the coolant channels for coolant flow from the inside to the outside or outside to inside has.
  • the segment disc is mounted on a hollow shaft designed as a coolant supply line, through which the coolant can pass into the coolant channels between the segments.
  • the resulting dust is a significant problem. It contaminates the processing device and can penetrate through the seals into the bearings of the spindle and destroy them by its abrasive behavior. In general, the dust that contaminates the entire processing device increases the wear of the parts driving the tool. This reduces the service life of the processing device. Furthermore, it has proven to be problematic that the machining process causes a considerable heat development, so that the tool and the machining itself are exposed to a high thermal load. All this results in the reduction of the maximum grinding speed and the reduction of the grinding quality.
  • 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 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 according to the teaching of claim 1.
  • the processing device is designed so that it is possible to direct an outgoing from the center of the processing tool air flow to the edge of the tool to the cutting elements and thereby on the one hand the dust to be transported to the outside and on the other a cooling of Effect tool engagement surfaces. This not only protects the processing device from the action of dust, it also becomes possible to significantly reduce the operating temperature, since the air jet guided by the tool cools it.
  • the means for supplying fluid, ie in particular air, to the center of rotation of the tool is designed as a hollow shaft which serves as a spindle of the tool.
  • the hollow shaft can be coaxially mounted in a substantially cylindrically shaped drive motor.
  • the width of the fluid channel decreases with increasing radial distance from the center of rotation; In this case is advantageous to a linear decrease - at least over a section - thought.
  • the base body and / or the cover body has at least one guide surface, along which the fluid, in particular air, can be passed from the center of rotation of the tool to the at least one cutting element;
  • the cover body has this guide surface.
  • the guide surface may extend straight or curved between the center of rotation of the tool and the cutting element, wherein in particular a helical formation is provided. Thereafter, the guide surface is thus formed in the manner of a turbine blade, so that upon rotation of the tool creates a conveying effect for the air.
  • a structurally particularly simple embodiment of the processing device according to the invention is achieved when the tool has a base body and a cover body, between which the at least one fluid channel is formed.
  • both the main body and the cover body may be formed substantially rotationally symmetrical.
  • the main body may be formed conically on its side facing the fluid channel, at least over a portion. Accordingly, the cover body can be formed flat on its side facing the fluid channel.
  • 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 done both actively and passively.
  • the means by which the fluid can be passed to the center of rotation of the tool with a fan, a compressor, a pump or the like in communication.
  • an active and passive generation of the air flow can also be provided on the device.
  • the method for operating the processing device employs the rotating tool provided with at least one cutting element, which is mounted on a spindle and rotationally driven.
  • an air is conveyed to the center of rotation of the tool and from there via a fluid channel to the at least one cutting element, wherein the air, preferably before their entry into the means, liquid is added.
  • the liquid is preferably water.
  • the liquid is finely distributed in the air, in particular in the form of droplets.
  • 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.
  • 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 a 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 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 base body 9 is covered by a cover 10, which in the Fig. 4a and 4b you can see. As it is best in Fig. 2 can be seen, thus forms between the side 11 of the base body 9 and the side 12 of the cover body 10 of the fluid channel 7, whose width B becomes smaller with increasing radius.
  • the covering body 10 has a deflecting section 16 which has a favorable flow design (see FIG. Fig. 4b ), which deflects in the axial direction by the hollow shaft 6 on the deflection section 16 impinging air in the radial direction and conveys into the fluid channel 7.
  • the air can be promoted by a blower 14 in the hollow shaft 6.
  • a blower 14 in the hollow shaft 6.
  • air conveying devices in the form of guide surfaces 13 can be arranged on the cover body 10, which have the consequence that upon rotation of the tool (see arrow of the direction of rotation in Fig. 4a ) Air is sucked in via the hollow shaft 6 and conveyed through the fluid channel 7 in the direction of the cutting element 4.
  • the guide surfaces 13 are formed turbine blade similar, whereby the delivery effect is accomplished.
  • the cutting elements 4 are screwed as interchangeable inserts to the base body 9.
  • 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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Milling Processes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Shovels (AREA)
  • Crushing And Grinding (AREA)

Claims (13)

  1. Dispositif de meulage ou de fraisage (1) pour araser des pierres, comportant un outil rotatif (2), qui présente un centre de rotation (3) ainsi qu' au moins un élément de coupage (4), qui est disposé à un emplacement éloigné du centre de rotation (3), l'outil rotatif (2) étant positionné et entraîné en rotation au moyen d'une broche (5) configurée comme un arbre creux (6), qui peut guider de l'air vers le centre de rotation (3) de l'outil (2), et présentant en outre au moins un canal de fluide (7), qui relie en conduction de fluide le centre de rotation (3) de l'outil (2) à ledit au moins un élément de coupage (4),
    caractérisé en ce qu'
    un dispositif de transport de fluide (13) est disposé, respectivement intégré dans l'outil (2) et en ce que la largeur (B) du canal de fluide (7) diminue à mesure que la distance par rapport au centre de rotation (3) augmente.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'arbre creux (6) est positionné coaxialement dans un moteur d'entraînement (8) configuré essentiellement en forme de cylindre.
  3. Dispositif selon une des revendications 1 ou 2,
    caractérisé en ce que
    l'outil (2) présente un corps de base (9) ainsi qu'un corps de recouvrement (10), entre lesquels ledit au moins un canal de fluide (7) est réalisé.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    tant le corps de base (9) que le corps de recouvrement (10) sont configurés de manière essentiellement symétrique en rotation.
  5. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    la largeur (B) du canal de fluide (7) diminue linéairement au moins sur une portion.
  6. Dispositif selon une des revendications 3 à 5,
    caractérisé en ce que
    le corps de base (9) sur son côté (11) tourné vers le canal de fluide (7) est façonné en forme de cône au moins sur une portion.
  7. Dispositif selon une des revendications 3 à 6,
    caractérisé en ce que
    le corps de recouvrement (10) est façonné de manière plane sur son côté (12) tourné vers le canal de fluide (7).
  8. Dispositif selon une des revendications 3 à 7,
    caractérisé en ce que
    le corps de base (9) et/ou le corps de recouvrement (10) présente au moins une surface conductrice (13), le long de laquelle un fluide, notamment de l'air, peut être guidé et/ou transporté du centre de rotation (3) de l'outil (2) vers ledit au moins un élément de coupage (4).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    le corps de recouvrement (10) présente ladite au moins une surface conductrice (13).
  10. Dispositif selon la revendication 8 ou 9,
    caractérisé en ce que
    ladite au moins une surface conductrice (13) s'étend en forme d'arc entre le centre de rotation (3) et l'élément de coupage (4).
  11. Dispositif selon la revendication 10,
    caractérisé en ce que
    ladite au moins une surface conductrice (13) s'étend en forme de spirale.
  12. Dispositif selon une des revendications 1 à 11,
    caractérisé en ce que
    le moyen (6), avec lequel un fluide peut être guidé vers le centre de rotation (3) de l'outil (2), est en liaison avec un ventilateur (14).
  13. Procédé de fonctionnement du dispositif de meulage ou de fraisage (1) selon une des revendications 1 à 12 pour araser des pierres, dans lequel un outil (2) rotatif pourvu d'au moins un élément de coupage (4) est positionné et entraîné en rotation sur une broche (5),
    caractérisé en ce que
    par l'intermédiaire d'un moyen (6), de l'air est guidé vers le centre de rotation (3) de l'outil (2) et de là via un canal de fluide (7) vers ledit au moins un élément de coupage (4), un liquide finement distribué, notamment sous forme de gouttelettes, étant ajouté à l'air, de préférence avant l'entrée de celui-ci dans le moyen (6).
EP02020380A 2001-12-18 2002-09-12 Dispositif de polissage ou de fraisage et méthode d'utilisation de ce dispositif de polissage ou de fraisage Expired - Lifetime EP1321232B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10162425A DE10162425A1 (de) 2001-12-18 2001-12-18 Bearbeitungsvorrichtung und Verfahren zum Betrieb einer Bearbeitungsvorrichtung
DE10162425 2001-12-18

Publications (2)

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

Family

ID=7709828

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Application Number Title Priority Date Filing Date
EP02020380A Expired - Lifetime EP1321232B1 (fr) 2001-12-18 2002-09-12 Dispositif de polissage ou de fraisage et méthode d'utilisation de ce dispositif de polissage ou de fraisage

Country Status (4)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057336B3 (de) * 2004-11-27 2006-01-05 Wassmer, Paul Maschine zum trockenen Schleifen von keramischen oder zementgebundenen Werkstücken
DE102006010975B4 (de) 2006-03-09 2008-04-03 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg Schleifrad zur spanabhebenden Bearbeitung von Gegenständen, insbesondere von natürlichen oder künstlichen Steinen
US7384329B2 (en) 2006-05-23 2008-06-10 Saint-Gobain Abrasives Technology Company Coolant delivery system for grinding tools
DE202007014470U1 (de) 2007-10-16 2008-02-07 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg Schleifrad für eine spanabhebende Bearbeitung von Gegenständen, insbesondere von Steinen, Ziegeln o.dgl., oder Radkörper oder Schleifring oder Verschluss-Stück für ein solches Schleifrad
US20130183891A1 (en) * 2011-12-30 2013-07-18 Ignazio Gosamo Grinding Ring with Dual Function Grinding Segments
CN108637863A (zh) * 2018-06-30 2018-10-12 盐城市锐克斯研磨科技有限公司 一种散热良好的砂轮机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7214226U (de) * 1972-11-16 Bayerische Maschinenfab Schlageter F J Segmentscheibe, insbesondere aus Karborundum, zur zerspanenden Bearbeitung von Werkstücken aus Stein, Kunststein od. dgl

Family Cites Families (9)

* 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 (de) * 1937-02-05 1941-06-27 Ver Deutscher Werkzeugmaschine Vorrichtung zum Zufuehren von Kuehl-, Schmier- und Spuelfluessigkeit an Werkzeugmaschinen mit umlaufenden Werkzeugen
DE807881C (de) * 1949-11-19 1951-07-05 Hurth Masch Zahnrad Carl Verfahren zum Kuehlen der Werkzeuge von Metallbearbeitungsmaschinen
US3181281A (en) * 1962-07-17 1965-05-04 Tysaman Machine Company Inc Grinding wheels
CH554727A (de) * 1972-08-04 1974-10-15 Staehli Arthur Werner Maschine zum laeppen und polieren.
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
DE19529841A1 (de) * 1995-08-12 1997-02-13 Krebs & Riedel Schleifscheiben Schleifwerkzeug zur Oberflächenbearbeitung von Natur- und Kunststeinen
DE19846765C2 (de) * 1997-10-24 2001-09-27 Freimut Storrer Vorrichtung zum Schleifen und/oder Polieren

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7214226U (de) * 1972-11-16 Bayerische Maschinenfab Schlageter F J Segmentscheibe, insbesondere aus Karborundum, zur zerspanenden Bearbeitung von Werkstücken aus Stein, Kunststein od. dgl

Also Published As

Publication number Publication date
DE10162425A1 (de) 2003-07-10
ATE424969T1 (de) 2009-03-15
DE50213346D1 (de) 2009-04-23
EP1321232A1 (fr) 2003-06-25
ES2320633T3 (es) 2009-05-27

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