EP3539720A1 - Grinding tool for grinding of an engine block - Google Patents

Grinding tool for grinding of an engine block Download PDF

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Publication number
EP3539720A1
EP3539720A1 EP19156235.4A EP19156235A EP3539720A1 EP 3539720 A1 EP3539720 A1 EP 3539720A1 EP 19156235 A EP19156235 A EP 19156235A EP 3539720 A1 EP3539720 A1 EP 3539720A1
Authority
EP
European Patent Office
Prior art keywords
base body
channels
grinding tool
cover plate
cooling 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
EP19156235.4A
Other languages
German (de)
French (fr)
Other versions
EP3539720B1 (en
Inventor
Mario Nairz
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.)
Tyrolit-Schleifmittelwerke Swarovski KG
Original Assignee
Tyrolit-Schleifmittelwerke Swarovski KG
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Filing date
Publication date
Application filed by Tyrolit-Schleifmittelwerke Swarovski KG filed Critical Tyrolit-Schleifmittelwerke Swarovski KG
Priority to PL19156235T priority Critical patent/PL3539720T3/en
Publication of EP3539720A1 publication Critical patent/EP3539720A1/en
Application granted granted Critical
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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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; 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
    • 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
    • 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
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots

Definitions

  • the invention relates to a grinding tool for grinding an engine block, comprising a base body, which comprises a central coupling region for connecting the base body to a rotary drive of a grinding machine, wherein the base body is substantially rotationally symmetrical with respect to a rotation axis, an abrasive coating, which is arranged on the base body and extends at least over an outer annular region of the body, at least one supply for a cooling fluid, and a substantially circular cover plate, which is arranged substantially normal to the axis of rotation and forming an axial gap on the base body, wherein the axial gap in fluid communication with the at least a supply and the abrasive coating is, so that a supplied via the at least one feed cooling fluid can be passed over the axial gap to the abrasive coating.
  • the invention further relates to an arrangement of such a grinding tool and a HSK receptacle connected thereto at least over the central coupling region of the base body.
  • grinding tools for grinding engine blocks are already known per se from the prior art.
  • the grinding process used is also known as “micro milling” or “smear grinding”.
  • the material undergoing the grinding process is removed and “lubricated” by the microporosity of the surface to be ground.
  • the grinding tools are frequently cooled by means of a cooling fluid, whereby a cooling fluid supplied via a feed is directed to the abrasive coating via an axial gap.
  • the cover plate is positioned at a distance from the base body, resulting in a cylindrical gap between the cover plate and the base body, through which the cooling fluid is distributed.
  • the object of the present invention is therefore to improve the service life of the grinding tool and the surface finish of the grinding tool to be machined surface of the engine blocks over the prior art and an arrangement of a thus improved grinding tool and at least over the central coupling region of the body indicate the HSK recorded.
  • the grinding tool that are arranged on one of the cover plate zugwandten surface of the base body and / or on a base body zugwandten surface of the cover first channels for selectively directing the cooling fluid from the at least one feed to the abrasive coating.
  • the cooling fluid can thus be directed via first channels of the at least one feed to the abrasive coating, whereby a more uniform and controlled distribution of the cooling fluid is possible.
  • abraded material can be removed more efficiently. Overall, this leads to about 30% longer life compared to the prior art.
  • the cover plate can be arranged in the grinding tool according to the invention as in the prior art at a distance from the base body, so that in addition to the first channels, a cylindrical gap between the cover plate and the base body is arranged. According to a preferred embodiment, however, it is provided that contact the zugplatten the cover plate surface of the body and the base body zugwandte surface of the cover partially. In this case, there is no cylindrical gap between the cover plate and the main body, but a plurality of axial gaps having the geometry of the first channels.
  • protection is also desired for an arrangement comprising a grinding tool according to the invention and a HSK receptacle connected at least over the central coupling region of the base body.
  • FIGS. 1 . 2 and 3a show an assembly 25 of a grinding tool 1 for grinding an engine block and a HSK receptacle 23.
  • the grinding tool 1 comprises a base body 2, which has a central coupling region 3 for connecting the base body 2 to a rotary drive 4 a grinding machine 5 (in the FIG. 3a indicated by dashed lines), wherein the base body 2 is formed with respect to a rotation axis 6 is substantially rotationally symmetrical.
  • the central coupling region 3 is designed such that the grinding tool 1 can be connected to an HSK receptacle 23.
  • the grinding tool 1 further comprises an abrasive coating 7, which extends at least over an outer annular zone 8 of the main body 2, at least one feed 9 for a cooling fluid 10, and a substantially circular cover plate 11 which is arranged substantially normal to the axis of rotation 6 and forming an axial gap 12 on the base body 2, wherein the axial gap 12 is in fluid communication with the at least one feed 9 and the abrasive coating 7, so that one of the at least one Feeding 9 supplied cooling fluid 10 can be passed through the axial gap 12 to the abrasive coating 7 (see FIG. 3a ).
  • the annular zone 8 of the main body 2 is aligned substantially normal to the axis of rotation 6.
  • first channels 15 for the targeted guidance of the cooling fluid 10 of the at least one feed 9 to the abrasive coating 7 is arranged.
  • both at the cover plate 11 zugwandten surface 13 of the base body 2 as well as on the base body 2 zugwandten surface 14 of the cover 11 first channels 15 for selectively directing the cooling fluid 10 of the at least one Feeder 9 are arranged to the abrasive coating 7.
  • the feed 9 for the cooling fluid 10 extends substantially parallel to the axis of rotation 6 or in the axial direction 29, and is formed as a bore in the base body 2. This feed 9 can continue in the HSK receptacle 23 in the form of an opening 33.
  • the cover plate 11, the base body 2 and the HSK receptacle 23 are detachably connected to each other via connecting means 24 in the form of screws.
  • the screws penetrate recesses 30 in the cover plate 11 and recesses 31 in the base body 2 and are mounted in bores 32 in the HSK receptacle 23.
  • the screws 24 may have an external thread and the bores 32 have a corresponding internal thread.
  • the cover plate 11 is connected to the main body 2, and on the other hand the package of cover plate 11 and base body 2 is connected to the HSK receptacle 23.
  • the cover plate 11 zugwandte surface 13 of the base body 2 and the base body 2 zugwandte surface 14 of the cover 11 contact areas, namely the places where no first channels 15 are provided.
  • the base body 2 and the cover plate 11 each have an inclined surface 17, 18, which adjoins the abrasive coating 7, wherein the inclined surfaces 17, 18 contact regionally.
  • second channels 19 are arranged for the targeted guidance of the cooling fluid 10.
  • 17 and 18 may be arranged on the inclined surface 18 or on both inclined surfaces second channels 19 for the selective guidance of the cooling fluid 10.
  • third channels 20 are arranged for the purposeful conduction of the cooling fluid 10, wherein the third channels 20 are connected to the second channels 19.
  • annular channel 26 is arranged for the targeted guidance of the cooling fluid 10.
  • cooling fluid 10 is passed through the first channels 15 radially toward the outer edge 21 of the body 2, enters the annular channel 26, from there into the second channels 19 and finally into the third channels 20, which are arranged in the abrasive coating 7.
  • the outer circular ring zone 8 of the main body 2 is shown in detail.
  • the abrasive coating 7 arranged on the base body 2 in this annular zone 8 comprises diamonds, is galvanically connected to the base body 2, and has a thickness 22 of 0.1 mm to 1 mm, preferably approximately 0.3 mm.
  • the abrasive coating is not only aligned substantially normal to the axis of rotation 6, but also encloses a part of the outer edge 21 of the base body 2.
  • FIGS. 4a and 4b Details of the cooling fluid distribution system can be found: Starting from the feed 9, the first channels 15 extend in a star shape essentially in the radial direction 16 outwards. The channels 15 each have the same angular distance relative to each other.
  • the first channels 15 open into the annular channel 26, and the annular channel 26 is formed by a cavity between a arranged on the base body 2 part surface 27 and arranged on the cover plate 11 part surface 28 (see also FIG. 5 ).
  • the cooling fluid 10 enters the second channels 19. These are arranged offset to the first channels 15. There are more second channels 19 are provided as the first channels 15. The second channels 19 also extend in the radial direction 16 to the outside.
  • the cooling fluid 10 enters the third channels 20, which are connected to the second channels 19.
  • the third channels 20 extend obliquely with respect to the radial direction 16, and widen towards the outer edge 21 of the main body 2.
  • FIG. 5 shows the cover plate 11 of the grinding tool 1 from the rear.
  • the base body 2 facing surface 14, the part surface 28, which limits the annular channel 26 in the axial direction 29 together with the part surface 27 of the base body 2, and the inclined surface 18 can be seen.
  • no channels for the selective guidance of the cooling fluid 10 are arranged on the surface 14 and the inclined surface 18.
  • channels 15 and 19 may be provided here in addition to or instead of the channels provided on the main body 2.

Abstract

Schleifwerkzeug (1) zum Schleifen eines Motorblocks, umfassend- einen Grundkörper (2), welcher einen zentralen Kopplungsbereich (3) zur Anbindung des Grundkörpers (2) an einen Drehantrieb (4) einer Schleifmaschine (5) umfasst, wobei der Grundkörper (2) bezüglich einer Drehachse (6) im Wesentlichen rotationssymmetrisch ausgebildet ist,- einen Schleifbelag (7), welcher am Grundkörper (2) angeordnet ist und sich zumindest über eine äußere Kreisringzone (8) des Grundkörpers (2) erstreckt,- wenigstens eine Zuführung (9) für ein Kühlfluid (10), und- eine im Wesentlichen kreisförmige Abdeckplatte (11), welche im Wesentlichen normal zur Drehachse (6) und unter Ausbildung eines axialen Spalts (12) am Grundkörper (2) angeordnet ist, wobei der axiale Spalt (12) in Fluidverbindung mit der wenigstens einen Zuführung (9) und dem Schleifbelag (7) steht, so dass ein über die wenigstens eine Zuführung (9) zugeführtes Kühlfluid (10) über den axialen Spalt (12) zum Schleifbelag (7) geleitet werden kann,wobei an einer der Abdeckplatte (11) zugwandten Fläche (13) des Grundkörpers (2) und/oder an einer dem Grundkörper (2) zugwandten Fläche (14) der Abdeckplatte (11) erste Kanäle (15) zur gezielten Leitung des Kühlfluids (10) von der wenigstens einen Zuführung (9) zum Schleifbelag (7) angeordnet sind.Grinding tool (1) for grinding an engine block, comprising a base body (2), which comprises a central coupling region (3) for connecting the base body (2) to a rotary drive (4) of a grinding machine (5), wherein the base body (2) an abrasive coating (7), which is arranged on the base body (2) and extends at least over an outer annular zone (8) of the base body (2), - at least one feed (9 ) for a cooling fluid (10), and- a substantially circular cover plate (11) which is arranged substantially normal to the axis of rotation (6) and forming an axial gap (12) on the base body (2), wherein the axial gap ( 12) in fluid communication with the at least one feed (9) and the abrasive coating (7), so that via the at least one feed (9) supplied cooling fluid (10) via the axial gap (12) to the abrasive coating (7) ge can be conducted, wherein on one of the cover plate (11) zugwandten surface (13) of the base body (2) and / or on a base body (2) zugwandten surface (14) of the cover plate (11) first channels (15) for selective guidance of the cooling fluid (10) from the at least one feed (9) to the abrasive coating (7) are arranged.

Description

Die Erfindung betrifft ein Schleifwerkzeug zum Schleifen eines Motorblocks, umfassend einen Grundkörper, welcher einen zentralen Kopplungsbereich zur Anbindung des Grundkörpers an einen Drehantrieb einer Schleifmaschine umfasst, wobei der Grundkörper bezüglich einer Drehachse im Wesentlichen rotationssymmetrisch ausgebildet ist, einen Schleifbelag, welcher am Grundkörper angeordnet ist und sich zumindest über eine äußere Kreisringzone des Grundkörpers erstreckt, wenigstens eine Zuführung für ein Kühlfluid, und eine im Wesentlichen kreisförmige Abdeckplatte, welche im Wesentlichen normal zur Drehachse und unter Ausbildung eines axialen Spalts am Grundkörper angeordnet ist, wobei der axiale Spalt in Fluidverbindung mit der wenigstens einen Zuführung und dem Schleifbelag steht, so dass ein über die wenigstens eine Zuführung zugeführtes Kühlfluid über den axialen Spalt zum Schleifbelag geleitet werden kann. Die Erfindung betrifft weiterhin eine Anordnung aus einem solchen Schleifwerkzeug und einer zumindest über den zentralen Kopplungsbereich des Grundkörpers damit verbundenen HSK-Aufnahme.The invention relates to a grinding tool for grinding an engine block, comprising a base body, which comprises a central coupling region for connecting the base body to a rotary drive of a grinding machine, wherein the base body is substantially rotationally symmetrical with respect to a rotation axis, an abrasive coating, which is arranged on the base body and extends at least over an outer annular region of the body, at least one supply for a cooling fluid, and a substantially circular cover plate, which is arranged substantially normal to the axis of rotation and forming an axial gap on the base body, wherein the axial gap in fluid communication with the at least a supply and the abrasive coating is, so that a supplied via the at least one feed cooling fluid can be passed over the axial gap to the abrasive coating. The invention further relates to an arrangement of such a grinding tool and a HSK receptacle connected thereto at least over the central coupling region of the base body.

Schleifwerkzeuge zum Schleifen von Motorblöcken sind an sich bereits aus dem Stand der Technik bekannt. Der dabei zur Anwendung kommende Schleifprozess wird auch als "Micro Milling" oder "Smear Grinding" bezeichnet. Im Zuge des Schleifprozesses wird das dem Schleifprozess unterzogene Material abgetragen und über die Mikroporosität der zu schleifenden Oberfläche "geschmiert".Grinding tools for grinding engine blocks are already known per se from the prior art. The grinding process used is also known as "micro milling" or "smear grinding". In the course of the grinding process, the material undergoing the grinding process is removed and "lubricated" by the microporosity of the surface to be ground.

Die Schleifwerkzeuge werden häufig mittels eines Kühlfluids gekühlt, wobei ein über eine Zuführung zugeführtes Kühlfluid über einen axialen Spalt zum Schleifbelag geleitet wird. Dabei wird die Abdeckplatte in einem Abstand zum Grundkörper positioniert, wodurch sich ein zylinderförmiger Spalt zwischen der Abdeckplatte und dem Grundkörper ergibt, über welchen das Kühlfluid verteilt wird.The grinding tools are frequently cooled by means of a cooling fluid, whereby a cooling fluid supplied via a feed is directed to the abrasive coating via an axial gap. In this case, the cover plate is positioned at a distance from the base body, resulting in a cylindrical gap between the cover plate and the base body, through which the cooling fluid is distributed.

Es hat sich in der letzten Zeit ein Optimierungsbedarf hinsichtlich der Standzeiten eines solchermaßen gekühlten Schleifwerkzeugs und der Oberflächenbeschaffenheit der mit dem Schleifwerkzeug zu bearbeitenden Oberfläche der Motorblöcke ergeben.There has recently been a need for optimization with regard to the service life of such a cooled grinding tool and the surface finish of the surface to be machined with the grinding tool of the engine blocks.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, die Standzeit des Schleifwerkzeugs und die Oberflächenbeschaffenheit der mit dem Schleifwerkzeug zu bearbeitenden Oberfläche der Motorblöcke gegenüber dem Stand der Technik zu verbessern und eine Anordnung aus einem solchermaßen verbesserten Schleifwerkzeug und einer zumindest über den zentralen Kopplungsbereich des Grundkörpers damit verbundenen HSK-Aufnahme anzugeben.The object of the present invention is therefore to improve the service life of the grinding tool and the surface finish of the grinding tool to be machined surface of the engine blocks over the prior art and an arrangement of a thus improved grinding tool and at least over the central coupling region of the body indicate the HSK recorded.

Diese Aufgabe wird gelöst durch die Merkmale der unabhängigen Ansprüche 1 und 15.This object is solved by the features of independent claims 1 and 15.

Es ist also beim Schleifwerkzeug erfindungsgemäß vorgesehen, dass an einer der Abdeckplatte zugwandten Fläche des Grundkörpers und/oder an einer dem Grundkörper zugwandten Fläche der Abdeckplatte erste Kanäle zur gezielten Leitung des Kühlfluids von der wenigstens einen Zuführung zum Schleifbelag angeordnet sind.It is therefore provided according to the invention in the grinding tool that are arranged on one of the cover plate zugwandten surface of the base body and / or on a base body zugwandten surface of the cover first channels for selectively directing the cooling fluid from the at least one feed to the abrasive coating.

Das Kühlfluid kann also gezielt über erste Kanäle von der wenigstens einen Zuführung zum Schleifbelag geleitet werden, wodurch eine gleichmäßigere und kontrolliertere Verteilung des Kühlfluids möglich ist. Außerdem kann abgeschliffenes Material effizienter entfernt werden. Insgesamt führt dies gegenüber dem Stand der Technik zu einer um ca. 30% höheren Standzeit.The cooling fluid can thus be directed via first channels of the at least one feed to the abrasive coating, whereby a more uniform and controlled distribution of the cooling fluid is possible. In addition, abraded material can be removed more efficiently. Overall, this leads to about 30% longer life compared to the prior art.

Insgesamt führt dies zu einer im Vergleich zum Stand der Technik verbesserten Oberflächenbeschaffenheit der mit dem Schleifwerkzeug zu bearbeitenden Oberfläche der Motorblöcke. Konkret weist die Oberfläche weniger Kratzer, bessere Material-Traganteilwerte (in Fachkreisen neuerdings auch Materialanteil genannt) und eine bessere bzw. höhere Ebenheit auf.Overall, this leads to an improved compared to the prior art surface finish of the machined with the grinding tool surface of the engine blocks. Specifically, the surface has less scratches, better material-carrying-ratio values (recently also called proportion of material in professional circles) and a better or higher evenness.

Die Abdeckplatte kann beim erfindungsgemäßen Schleifwerkzeug wie beim Stand der Technik in einem Abstand zum Grundkörper angeordnet werden, so dass zusätzlich zu den ersten Kanälen ein zylinderförmiger Spalt zwischen der Abdeckplatte und dem Grundkörper angeordnet ist. Gemäß einer bevorzugten Ausführungsform ist es allerdings vorgesehen, dass sich die der Abdeckplatte zugwandte Fläche des Grundkörpers und die dem Grundkörper zugwandte Fläche der Abdeckplatte bereichsweise kontaktieren. In diesem Fall liegt kein zylinderförmiger Spalt zwischen der Abdeckplatte und dem Grundkörper vor, sondern mehrere axiale Spalte , welche die Geometrie der ersten Kanäle aufweisen.The cover plate can be arranged in the grinding tool according to the invention as in the prior art at a distance from the base body, so that in addition to the first channels, a cylindrical gap between the cover plate and the base body is arranged. According to a preferred embodiment, however, it is provided that contact the zugplatten the cover plate surface of the body and the base body zugwandte surface of the cover partially. In this case, there is no cylindrical gap between the cover plate and the main body, but a plurality of axial gaps having the geometry of the first channels.

Weitere bevorzugte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen 3 bis 14 definiert.Further preferred embodiments of the invention are defined in the dependent claims 3 to 14.

Wie eingangs ausgeführt, wird auch Schutz begehrt für eine Anordnung aus einem erfindungsgemäßen Schleifwerkzeug und einer zumindest über den zentralen Kopplungsbereich des Grundkörpers damit verbundenen HSK-Aufnahme.As stated at the outset, protection is also desired for an arrangement comprising a grinding tool according to the invention and a HSK receptacle connected at least over the central coupling region of the base body.

Dabei bietet es sich an, das Kühlfluid durch eine zentrale, in axialer Richtung verlaufende Öffnung in der HSK-Aufnahme dem Schleifwerkzeug zuzuführen.It is advisable to supply the cooling fluid through a central opening in the axial direction in the HSK receptacle to the grinding tool.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand der Figurenbeschreibung unter Bezugnahme auf die Zeichnungen im Folgenden näher erläutert. Darin zeigen:

Fig. 1
eine Anordnung aus einem Schleifwerkzeug gemäß einem bevorzugten Ausführungsbeispiel und einer HSK-Aufnahme in einer schematischen perspektivischen Ansicht,
Fig. 2
eine Explosionsdarstellung der Anordnung gemäß Figur 1,
Fig. 3a
eine schematische Querschnittsansicht der Anordnung gemäß Figur 1 zusammen mit einem angedeuteten Drehantrieb einer Schleifmaschine,
Fig. 3b
einen Ausschnitt des Schleifwerkzeugs gemäß Figur 1 in einer Draufsicht von vorne,
Fig. 3c
eine schematische Querschnittsansicht des Schleifwerkzeugs entlang der in der Figur 3b eingezeichneten Schnittebene 34,
Fig. 4a
den Grundkörper des Schleifwerkzeugs gemäß Figur 1 in einer Draufsicht von vorne,
Fig. 4b
eine schematische Querschnittsansicht des Grundkörpers entlang der in der Figur 4a eingezeichneten Schnittebene 35, und
Fig. 5
die Abdeckplatte des Schleifwerkzeugs gemäß Figur 1 in einer schematischen perspektivischen Ansicht von hinten.
Further details and advantages of the invention will be explained in more detail below with reference to the description of the figures with reference to the drawings. Show:
Fig. 1
3 shows an arrangement of a grinding tool according to a preferred exemplary embodiment and an HSK receptacle in a schematic perspective view,
Fig. 2
an exploded view of the arrangement according to FIG. 1 .
Fig. 3a
a schematic cross-sectional view of the arrangement according to FIG. 1 together with an indicated rotary drive of a grinding machine,
Fig. 3b
a section of the grinding tool according to FIG. 1 in a top view from the front,
Fig. 3c
a schematic cross-sectional view of the grinding tool along in the FIG. 3b Plotted cutting plane 34,
Fig. 4a
the main body of the grinding tool according to FIG. 1 in a top view from the front,
Fig. 4b
a schematic cross-sectional view of the body along in the FIG. 4a Plotted cutting plane 35, and
Fig. 5
the cover plate of the grinding tool according to FIG. 1 in a schematic perspective view from behind.

Die Figuren 1, 2 und 3a zeigen eine Anordnung 25 aus einem Schleifwerkzeug 1 zum Schleifen eines Motorblocks und einer HSK-Aufnahme 23. Das Schleifwerkzeug 1 umfasst einen Grundkörper 2, welcher einen zentralen Kopplungsbereich 3 zur Anbindung des Grundkörpers 2 an einen Drehantrieb 4 einer Schleifmaschine 5 (in der Figur 3a durch gestrichelte Linien angedeutet) umfasst, wobei der Grundkörper 2 bezüglich einer Drehachse 6 im Wesentlichen rotationssymmetrisch ausgebildet ist. Der zentrale Kopplungsbereich 3 ist derart ausgebildet, dass das Schleifwerkzeug 1 mit einer HSK-Aufnahme 23 verbindbar ist.The FIGS. 1 . 2 and 3a show an assembly 25 of a grinding tool 1 for grinding an engine block and a HSK receptacle 23. The grinding tool 1 comprises a base body 2, which has a central coupling region 3 for connecting the base body 2 to a rotary drive 4 a grinding machine 5 (in the FIG. 3a indicated by dashed lines), wherein the base body 2 is formed with respect to a rotation axis 6 is substantially rotationally symmetrical. The central coupling region 3 is designed such that the grinding tool 1 can be connected to an HSK receptacle 23.

Das Schleifwerkzeug 1 umfasst weiterhin einen Schleifbelag 7, welcher sich zumindest über eine äußere Kreisringzone 8 des Grundkörpers 2 erstreckt, wenigstens eine Zuführung 9 für ein Kühlfluid 10, und eine im Wesentlichen kreisförmige Abdeckplatte 11, welche im Wesentlichen normal zur Drehachse 6 und unter Ausbildung eines axialen Spalts 12 am Grundkörper 2 angeordnet ist, wobei der axiale Spalt 12 in Fluidverbindung mit der wenigstens einen Zuführung 9 und dem Schleifbelag 7 steht, so dass ein über die wenigstens eine Zuführung 9 zugeführtes Kühlfluid 10 über den axialen Spalt 12 zum Schleifbelag 7 geleitet werden kann (vergleiche Figur 3a).The grinding tool 1 further comprises an abrasive coating 7, which extends at least over an outer annular zone 8 of the main body 2, at least one feed 9 for a cooling fluid 10, and a substantially circular cover plate 11 which is arranged substantially normal to the axis of rotation 6 and forming an axial gap 12 on the base body 2, wherein the axial gap 12 is in fluid communication with the at least one feed 9 and the abrasive coating 7, so that one of the at least one Feeding 9 supplied cooling fluid 10 can be passed through the axial gap 12 to the abrasive coating 7 (see FIG. 3a ).

Die Kreisringzone 8 des Grundkörpers 2 ist im Wesentlichen normal zur Drehachse 6 ausgerichtet.The annular zone 8 of the main body 2 is aligned substantially normal to the axis of rotation 6.

An einer der Abdeckplatte 11 zugwandten Fläche 13 des Grundkörpers 2 sind erste Kanäle 15 zur gezielten Leitung des Kühlfluids 10 von der wenigstens einen Zuführung 9 zum Schleifbelag 7 angeordnet.On one of the cover plate 11 zugwandten surface 13 of the body 2 are first channels 15 for the targeted guidance of the cooling fluid 10 of the at least one feed 9 to the abrasive coating 7 is arranged.

Gemäß einer alternativen Ausführungsform kann es auch vorgesehen sein, dass an einer dem Grundkörper 2 zugwandten Fläche 14 der Abdeckplatte 11 erste Kanäle 15 zur gezielten Leitung des Kühlfluids 10 von der wenigstens einen Zuführung 9 zum Schleifbelag 7 angeordnet sind.According to an alternative embodiment, provision may also be made for first passages 15 to be selectively routed to the cooling fluid 10 from the at least one feed 9 to the abrasive coating 7 on a surface 14 of the cover plate 11 facing the base body 2.

Gemäß einer weiteren alternativen Ausführungsform kann es auch vorgesehen sein, dass sowohl an der der Abdeckplatte 11 zugwandten Fläche 13 des Grundkörpers 2 als auch an der dem Grundkörper 2 zugwandten Fläche 14 der Abdeckplatte 11 erste Kanäle 15 zur gezielten Leitung des Kühlfluids 10 von der wenigstens einen Zuführung 9 zum Schleifbelag 7 angeordnet sind.According to a further alternative embodiment, it can also be provided that both at the cover plate 11 zugwandten surface 13 of the base body 2 as well as on the base body 2 zugwandten surface 14 of the cover 11 first channels 15 for selectively directing the cooling fluid 10 of the at least one Feeder 9 are arranged to the abrasive coating 7.

Die Zuführung 9 für das Kühlfluid 10 verläuft im Wesentlichen parallel zur Drehachse 6 bzw. in axialer Richtung 29, und ist als Bohrung im Grundkörper 2 ausgebildet. Diese Zuführung 9 kann sich in der HSK-Aufnahme 23 in Form einer Öffnung 33 fortsetzen.The feed 9 for the cooling fluid 10 extends substantially parallel to the axis of rotation 6 or in the axial direction 29, and is formed as a bore in the base body 2. This feed 9 can continue in the HSK receptacle 23 in the form of an opening 33.

Die Abdeckplatte 11, der Grundkörper 2 und die HSK-Aufnahme 23 sind über Verbindungsmittel 24 in Form von Schrauben, lösbar miteinander verbunden. Die Schrauben durchdringen Ausnehmungen 30 in der Abdeckplatte 11 und Ausnehmungen 31 im Grundkörper 2 und sind in Bohrungen 32 in der HSK-Aufnahme 23 gelagert. Die Schrauben 24 können ein Außengewinde und die Bohrungen 32 ein korrespondierendes Innengewinde aufweisen.The cover plate 11, the base body 2 and the HSK receptacle 23 are detachably connected to each other via connecting means 24 in the form of screws. The screws penetrate recesses 30 in the cover plate 11 and recesses 31 in the base body 2 and are mounted in bores 32 in the HSK receptacle 23. The screws 24 may have an external thread and the bores 32 have a corresponding internal thread.

Gemäß einer alternativen Ausführungsform kann es vorgesehen sein, dass einerseits die Abdeckplatte 11 mit dem Grundkörper 2, und andererseits das Paket aus Abdeckplatte 11 und Grundkörper 2 mit der HSK-Aufnahme 23 verbunden ist.According to an alternative embodiment, it may be provided that, on the one hand, the cover plate 11 is connected to the main body 2, and on the other hand the package of cover plate 11 and base body 2 is connected to the HSK receptacle 23.

Die der Abdeckplatte 11 zugwandte Fläche 13 des Grundkörpers 2 und die dem Grundkörper 2 zugwandte Fläche 14 der Abdeckplatte 11 kontaktieren sich bereichsweise, und zwar den Stellen, an denen keine ersten Kanäle 15 vorgesehen sind.The cover plate 11 zugwandte surface 13 of the base body 2 and the base body 2 zugwandte surface 14 of the cover 11 contact areas, namely the places where no first channels 15 are provided.

Der Grundkörper 2 und die Abdeckplatte 11 weisen jeweils eine Schrägfläche 17, 18 auf, welche an den Schleifbelag 7 angrenzt, wobei sich die Schrägflächen 17, 18 bereichsweise kontaktieren.The base body 2 and the cover plate 11 each have an inclined surface 17, 18, which adjoins the abrasive coating 7, wherein the inclined surfaces 17, 18 contact regionally.

An der Schrägfläche 17 sind zweite Kanäle 19 zur gezielten Leitung des Kühlfluids 10 angeordnet. Alternativ können auch an der Schrägfläche 18 oder an beiden Schrägflächen 17 und 18 zweite Kanäle 19 zur gezielten Leitung des Kühlfluids 10 angeordnet sein.On the inclined surface 17 second channels 19 are arranged for the targeted guidance of the cooling fluid 10. Alternatively, 17 and 18 may be arranged on the inclined surface 18 or on both inclined surfaces second channels 19 for the selective guidance of the cooling fluid 10.

In der Kreisringzone 8 des Grundkörpers 2 bzw. am Schleifbelag 7 sind dritte Kanäle 20 zur gezielten Leitung des Kühlfluids 10 angeordnet, wobei die dritten Kanäle 20 mit den zweiten Kanälen 19 verbunden sind.In the circular ring zone 8 of the main body 2 or on the abrasive coating 7, third channels 20 are arranged for the purposeful conduction of the cooling fluid 10, wherein the third channels 20 are connected to the second channels 19.

Zwischen dem Grundkörper 2 und der Abdeckplatte 11 ist ein ringförmiger Kanal 26 zur gezielten Leitung des Kühlfluids 10 angeordnet.Between the base body 2 and the cover plate 11, an annular channel 26 is arranged for the targeted guidance of the cooling fluid 10.

Wie insbesondere aus der Figur 3a hervorgeht, wird ein in axialer Richtung 29 zugeführtes Kühlfluid 10 über die ersten Kanäle 15 radial in Richtung des Außenrands 21 des Grundkörpers 2 geleitet, gelangt in den ringförmigen Kanal 26, von dort in die zweiten Kanäle 19 und schließlich in die dritten Kanäle 20, welche im Schleifbelag 7 angeordnet sind.As in particular from the FIG. 3a shows a supplied in the axial direction 29 cooling fluid 10 is passed through the first channels 15 radially toward the outer edge 21 of the body 2, enters the annular channel 26, from there into the second channels 19 and finally into the third channels 20, which are arranged in the abrasive coating 7.

In der Figur 3c ist die äußere Kreisringzone 8 des Grundkörpers 2 im Detail dargestellt. Der in dieser Kreisringzone 8 am Grundkörper 2 angeordnete Schleifbelag 7 umfasst Diamanten, ist galvanisch mit dem Grundkörper 2 verbunden, und weist eine Dicke 22 von 0,1 mm bis 1 mm, vorzugsweise ca. 0,3 mm, auf. Darüber hinaus ist ersichtlich, dass der Schleifbelag nicht nur im Wesentlichen normal zur Drehachse 6 ausgerichtet ist, sondern auch einen Teil des Außenrands 21 des Grundkörpers 2 umschließt.In the Figure 3c the outer circular ring zone 8 of the main body 2 is shown in detail. The abrasive coating 7 arranged on the base body 2 in this annular zone 8 comprises diamonds, is galvanically connected to the base body 2, and has a thickness 22 of 0.1 mm to 1 mm, preferably approximately 0.3 mm. In addition, it can be seen that the abrasive coating is not only aligned substantially normal to the axis of rotation 6, but also encloses a part of the outer edge 21 of the base body 2.

Den Figuren 4a und 4b können Details des Kühlfluidverteilungssystems entnommen werden:
Die ersten Kanäle 15 verlaufen ausgehend von der Zuführung 9 sternförmig im Wesentlichen in radialer Richtung 16 nach außen. Die Kanäle 15 weisen relativ zueinander jeweils denselben Winkelabstand auf.The FIGS. 4a and 4b Details of the cooling fluid distribution system can be found:
Starting from the feed 9, the first channels 15 extend in a star shape essentially in the radial direction 16 outwards. The channels 15 each have the same angular distance relative to each other.

Die ersten Kanälen 15 münden in den ringförmigen Kanal 26, und der ringförmige Kanal 26 ist durch einen Hohlraum zwischen einer am Grundkörper 2 angeordneten Teilfläche 27 und einer an der Abdeckplatte 11 angeordneten Teilfläche 28 ausgebildet (vergleiche auch Figur 5).The first channels 15 open into the annular channel 26, and the annular channel 26 is formed by a cavity between a arranged on the base body 2 part surface 27 and arranged on the cover plate 11 part surface 28 (see also FIG. 5 ).

Ausgehend vom ringförmigen Kanal 26 gelangt das Kühlfluid 10 in die zweiten Kanäle 19. Diese sind versetzt zu den ersten Kanälen 15 angeordnet. Es sind mehr zweite Kanäle 19 als erste Kanäle 15 vorgesehen. Die zweiten Kanäle 19 verlaufen ebenfalls in radialer Richtung 16 nach außen.Starting from the annular channel 26, the cooling fluid 10 enters the second channels 19. These are arranged offset to the first channels 15. There are more second channels 19 are provided as the first channels 15. The second channels 19 also extend in the radial direction 16 to the outside.

Von den zweiten Kanälen 19 gelangt das Kühlfluid 10 in die dritten Kanäle 20, welche mit den zweiten Kanälen 19 verbunden sind. Es sind genauso viele dritte Kanäle 20 wie zweite Kanäle 19 vorgesehen. Die dritten Kanäle 20 verlaufen gegenüber der radialen Richtung 16 schräg, und verbreitern sich zum Außenrand 21 des Grundkörpers 2 hin.Of the second channels 19, the cooling fluid 10 enters the third channels 20, which are connected to the second channels 19. There are just as many third channels 20 as second channels 19 are provided. The third channels 20 extend obliquely with respect to the radial direction 16, and widen towards the outer edge 21 of the main body 2.

Die Figur 5 zeigt die Abdeckplatte 11 des Schleifwerkzeugs 1 von hinten. Dabei sind die dem Grundkörper 2 zugewandte Fläche 14, die Teilfläche 28, welche zusammen mit der Teilfläche 27 des Grundkörpers 2 den ringförmigen Kanal 26 in axialer Richtung 29 begrenzt, und die Schrägfläche 18 zu sehen. Im dargestellten Ausführungsbeispiel sind an der Fläche 14 und der Schrägfläche 18 keine Kanäle zur gezielten Leitung des Kühlfluids 10 angeordnet. Gemäß einem alternativen Ausführungsbeispiel können hier in Ergänzung oder anstelle der am Grundkörper 2 vorgesehenen Kanäle 15 und 19 Kanäle vorgesehen sein.The FIG. 5 shows the cover plate 11 of the grinding tool 1 from the rear. In this case, the base body 2 facing surface 14, the part surface 28, which limits the annular channel 26 in the axial direction 29 together with the part surface 27 of the base body 2, and the inclined surface 18 can be seen. In the illustrated embodiment, no channels for the selective guidance of the cooling fluid 10 are arranged on the surface 14 and the inclined surface 18. According to an alternative embodiment, channels 15 and 19 may be provided here in addition to or instead of the channels provided on the main body 2.

Claims (15)

Schleifwerkzeug (1) zum Schleifen eines Motorblocks, umfassend - einen Grundkörper (2), welcher einen zentralen Kopplungsbereich (3) zur Anbindung des Grundkörpers (2) an einen Drehantrieb (4) einer Schleifmaschine (5) umfasst, wobei der Grundkörper (2) bezüglich einer Drehachse (6) im Wesentlichen rotationssymmetrisch ausgebildet ist, - einen Schleifbelag (7), welcher am Grundkörper (2) angeordnet ist und sich zumindest über eine äußere Kreisringzone (8) des Grundkörpers (2) erstreckt, - wenigstens eine Zuführung (9) für ein Kühlfluid (10), und - eine im Wesentlichen kreisförmige Abdeckplatte (11), welche im Wesentlichen normal zur Drehachse (6) und unter Ausbildung eines axialen Spalts (12) am Grundkörper (2) angeordnet ist, wobei der axiale Spalt (12) in Fluidverbindung mit der wenigstens einen Zuführung (9) und dem Schleifbelag (7) steht, so dass ein über die wenigstens eine Zuführung (9) zugeführtes Kühlfluid (10) über den axialen Spalt (12) zum Schleifbelag (7) geleitet werden kann, dadurch gekennzeichnet, dass an einer der Abdeckplatte (11) zugwandten Fläche (13) des Grundkörpers (2) und/oder an einer dem Grundkörper (2) zugwandten Fläche (14) der Abdeckplatte (11) erste Kanäle (15) zur gezielten Leitung des Kühlfluids (10) von der wenigstens einen Zuführung (9) zum Schleifbelag (7) angeordnet sind.A grinding tool (1) for grinding an engine block, comprising - A base body (2), which comprises a central coupling region (3) for connecting the base body (2) to a rotary drive (4) of a grinding machine (5), wherein the base body (2) with respect to a rotation axis (6) formed substantially rotationally symmetrical is an abrasive coating (7) which is arranged on the base body (2) and extends at least over an outer annular zone (8) of the base body (2), - At least one feed (9) for a cooling fluid (10), and - A substantially circular cover plate (11), which is arranged substantially normal to the axis of rotation (6) and forming an axial gap (12) on the base body (2), wherein the axial gap (12) in fluid communication with the at least one feed (9) and the abrasive coating (7), so that via the at least one feed (9) supplied cooling fluid (10) via the axial gap (12) to the abrasive coating (7) can be passed, characterized in that on one of the cover plate (11) zugwandten surface (13) of the base body (2) and / or on a base body (2) zugwandten surface (14) of the cover plate (11) first channels (15) for the targeted conduction of Cooling fluid (10) from the at least one feed (9) to the abrasive coating (7) are arranged. Schleifwerkzeug (1) nach Anspruch 1, wobei sich die der Abdeckplatte (11) zugwandte Fläche (13) des Grundkörpers (2) und die dem Grundkörper (2) zugwandte Fläche (14) der Abdeckplatte (11) bereichsweise kontaktieren.Grinding tool (1) according to claim 1, wherein the cover plate (11) zugwandte surface (13) of the base body (2) and the base body (2) zugwandte surface (14) of the cover plate (11) contact regionally. Schleifwerkzeug (1) nach Anspruch 1 oder 2, wobei die ersten Kanäle (15) im Wesentlichen in radialer Richtung (16) verlaufen.Grinding tool (1) according to claim 1 or 2, wherein the first channels (15) extend substantially in the radial direction (16). Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 3, wobei der Grundkörper (2) und/oder die Abdeckplatte (11) eine Schrägfläche (17, 18) aufweisen, welche an den Schleifbelag (7) angrenzt, vorzugsweise wobei sowohl der Grundkörper (2) als auch die Abdeckplatte (11) eine Schrägfläche (17, 18) aufweisen, welche an den Schleifbelag (7) angrenzt, wobei sich die Schrägflächen (17, 18) bereichsweise kontaktieren.Grinding tool (1) according to one of claims 1 to 3, wherein the base body (2) and / or the cover plate (11) have an inclined surface (17, 18) which adjoins the abrasive coating (7), preferably wherein both the base body ( 2) as well as the cover plate (11) have an inclined surface (17, 18) which adjoins the abrasive coating (7), wherein the inclined surfaces (17, 18) contact regionally. Schleifwerkzeug (1) nach Anspruch 4, wobei an der Schrägfläche (17) zweite Kanäle (19) zur gezielten Leitung des Kühlfluids (10) angeordnet sind.Grinding tool (1) according to claim 4, wherein on the inclined surface (17) second channels (19) for the targeted guidance of the cooling fluid (10) are arranged. Schleifwerkzeug (1) nach Anspruch 5, wobei die zweiten Kanäle (19) versetzt zu den ersten Kanälen (15) angeordnet sind, und/oder mehr zweite Kanäle (19) als erste Kanäle (15) vorgesehen sind.Grinding tool (1) according to claim 5, wherein the second channels (19) are arranged offset from the first channels (15), and / or more second channels (19) are provided as first channels (15). Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 6, wobei in der Kreisringzone (8) des Grundkörpers (2) dritte Kanäle (20) zur gezielten Leitung des Kühlfluids (10) angeordnet sind.Grinding tool (1) according to one of claims 1 to 6, wherein in the annulus zone (8) of the base body (2) third channels (20) for the selective guidance of the cooling fluid (10) are arranged. Schleifwerkzeug (1) nach Anspruch 7, wobei die dritten Kanäle (20) gegenüber der radialen Richtung (16) schräg verlaufen, und/oder sich zum Außenrand (21) des Grundkörpers (2) hin verbreitern.The grinding tool (1) according to claim 7, wherein the third channels (20) extend obliquely with respect to the radial direction (16), and / or widen towards the outer edge (21) of the base body (2). Schleifwerkzeug (1) nach Anspruch 5 oder 6 und Anspruch 7 oder 8, wobei die dritten Kanäle (20) mit den zweiten Kanälen (19) verbunden sind, und/oder genauso viele dritte Kanäle (20) wie zweite Kanäle (19) vorgesehen sind.Grinding tool (1) according to claim 5 or 6 and claim 7 or 8, wherein the third channels (20) are connected to the second channels (19), and / or the same number of third channels (20) as second channels (19) are provided , Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 9, zwischen dem Grundkörper (2) und der Abdeckplatte (11) wenigstens ein ringförmiger Kanal (26) zur gezielten Leitung des Kühlfluids (10) angeordnet ist, vorzugsweise wobei die ersten Kanälen (15) in den ringförmigen Kanal (26) münden, und/oder der ringförmige Kanal (26) durch einen Hohlraum zwischen einer am Grundkörper (2) angeordneten Teilfläche (27) und einer an der Abdeckplatte (11) angeordneten Teilfläche (28) ausgebildet ist.Grinding tool (1) according to one of claims 1 to 9, between the base body (2) and the cover plate (11) at least one annular channel (26) for the targeted guidance of the cooling fluid (10) is arranged, preferably wherein the first channels (15) in the annular channel (26) open, and / or the annular channel (26) through a cavity between a base body (2) arranged part surface (27) and one on the cover plate (11) arranged part surface (28) is formed. Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 10, wobei die wenigstens eine Zuführung (9) für das Kühlfluid (10) im Wesentlichen parallel zur Drehachse (6) verläuft, und/oder als Bohrung im Grundkörper (2) ausgebildet ist.Grinding tool (1) according to one of claims 1 to 10, wherein the at least one feed (9) for the cooling fluid (10) extends substantially parallel to the axis of rotation (6), and / or as a bore in the base body (2). Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 11, wobei die Kreisringzone (8) des Grundkörpers (2) im Wesentlichen normal zur Drehachse (6) ausgerichtet ist.Grinding tool (1) according to one of claims 1 to 11, wherein the annular zone (8) of the base body (2) is aligned substantially normal to the axis of rotation (6). Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 12, wobei der Schleifbelag (7) Diamanten umfasst, unmittelbar am Grundkörper (2) angeordnet ist, galvanisch mit dem Grundkörper (2) verbunden ist, und/oder eine Dicke (22) von 0,1 mm bis 1 mm, vorzugsweise ca. 0,3 mm, aufweist.The grinding tool (1) according to one of claims 1 to 12, wherein the abrasive coating (7) comprises diamonds, is arranged directly on the base body (2), is galvanically connected to the base body (2), and / or has a thickness (0) of zero , 1 mm to 1 mm, preferably about 0.3 mm. Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 13, wobei - der zentrale Kopplungsbereich (3) derart ausgebildet ist, dass das Schleifwerkzeug (1) mit einer HSK-Aufnahme (23) verbindbar ist, und/oder - die Abdeckplatte (11), der Grundkörper (2) und eine gegebenenfalls vorgesehen HSK-Aufnahme (23) über Verbindungsmittel (24), vorzugsweise Schrauben, lösbar miteinander verbunden sind. The grinding tool (1) according to any one of claims 1 to 13, wherein - The central coupling region (3) is designed such that the grinding tool (1) with an HSK receptacle (23) is connectable, and / or - The cover plate (11), the base body (2) and an optionally provided HSK receptacle (23) via Connecting means (24), preferably screws, are releasably connected together. Anordnung (25) aus einem Schleifwerkzeug (1) nach einem der Ansprüche 1 bis 14 und einer zumindest über den zentralen Kopplungsbereich (3) des Grundkörpers (2) damit verbundenen HSK-Aufnahme (23).Arrangement (25) comprising a grinding tool (1) according to one of Claims 1 to 14 and an HSK receptacle (23) connected thereto at least over the central coupling region (3) of the base body (2).
EP19156235.4A 2018-03-12 2019-02-08 Grinding tool for grinding of an engine block Active EP3539720B1 (en)

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HUE049607T2 (en) 2020-09-28
AT520966A1 (en) 2019-09-15
AT17877U1 (en) 2023-06-15
EP3539720B1 (en) 2020-03-25
CN110253429A (en) 2019-09-20
PL3539720T3 (en) 2020-09-07
US20190275631A1 (en) 2019-09-12
CN110253429B (en) 2021-10-15
US11969852B2 (en) 2024-04-30
ES2800431T3 (en) 2020-12-30

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