EP2835220B1 - Trimming tool, and method for manufacturing the same - Google Patents

Trimming tool, and method for manufacturing the same Download PDF

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Publication number
EP2835220B1
EP2835220B1 EP13179579.1A EP13179579A EP2835220B1 EP 2835220 B1 EP2835220 B1 EP 2835220B1 EP 13179579 A EP13179579 A EP 13179579A EP 2835220 B1 EP2835220 B1 EP 2835220B1
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EP
European Patent Office
Prior art keywords
recesses
hard
main body
material grains
grain
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.)
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EP13179579.1A
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German (de)
French (fr)
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EP2835220A1 (en
Inventor
Christoph Rudolf
Florian Hänni
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Reishauer AG
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Reishauer AG
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Publication date
Priority to EP13179579.1A priority Critical patent/EP2835220B1/en
Application filed by Reishauer AG filed Critical Reishauer AG
Priority to ES13179579T priority patent/ES2756849T3/en
Priority to RU2016103056A priority patent/RU2675328C2/en
Priority to JP2016532297A priority patent/JP2016527095A/en
Priority to US14/905,398 priority patent/US10160095B2/en
Priority to BR112016001035-3A priority patent/BR112016001035B1/en
Priority to PCT/EP2014/065484 priority patent/WO2015018627A1/en
Priority to CN201480040678.0A priority patent/CN105612028B/en
Priority to KR1020157036998A priority patent/KR102256194B1/en
Publication of EP2835220A1 publication Critical patent/EP2835220A1/en
Priority to JP2019017688A priority patent/JP7043438B2/en
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Publication of EP2835220B1 publication Critical patent/EP2835220B1/en
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    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12—Dressing tools; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0072—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using adhesives for bonding abrasive particles or grinding elements to a support, e.g. by gluing

Definitions

  • the invention relates to a dressing tool which comprises a base body with a working surface and distributed on this work surface arranged hard material grains.
  • Such a tool is in the document EP-A-2 535 145 revealed.
  • the tool described there is used in particular for dressing grinding wheels or grinding worms for grinding gears and similar components.
  • an adhesive with a defined film thickness is first applied to the working surface of the tool to be produced, and then the hard material grains are applied to the work surface provided with the adhesive and remain permanently bonded there as a particle coating after the adhesive has cured.
  • a diamond dressing wheel in which recesses in the form of grooves or holes are brought radially in or at the edge regions, inserted into these elongated diamonds and fastened with a metal in or on the dressing wheel become.
  • This dressing wheel refers to elongated diamonds which can be fastened in grooves and, moreover, only one use is intended in or at the edge regions. Furthermore, in addition to this elongated diamond, several surfaces with diamond grains are also conventionally coated.
  • the invention has for its object to provide a dressing tool and a method for its production, in which the main body of the tool occupied with an improved distribution of the hard grains and with it thus an optimization of his work surface is achieved in terms of its cutting action.
  • the particles received in the depressions are individually positioned in this way exactly, namely according to the arrangement or distribution of the depressions on the working surface of the tool.
  • the hard material grains can thus be applied with a defined distribution density by the receiving depressions are distributed appropriately distributed on the working surface of the tool.
  • a distribution density which is particularly advantageous in practice results from an arrangement of the depressions from which, in the case of the finished tool, a certain spacing of the hard material grains relative to their inner sides takes place in relation to the particle size.
  • the recesses according to the invention are generally dimensioned and designed such that they can each accommodate one hard material grain. However, it is within the scope of the invention also possible to dimension and shape the depressions depending on the particle size and / or shape of the particles so that they can each accommodate more than a single grain.
  • the depressions are introduced into the basic body by drilling in or impressing the same. Since the main body is usually metallic, both manufacturing methods can be applied without great expenditure on equipment. Depending on the nature of the body, however, other manufacturing methods, such as laser-operated methods, are applicable in principle.
  • the invention further provides that the recesses introduced into the base body are filled with a preferably electrically conductive adhesive, wherein the excess adhesive is drawn off via the base body and then the hard material grains are thrown onto the base body. In this way it is ensured that only the particles located in the depressions remain stuck on the working surface of the tool.
  • the invention also provides that the resulting particle coating is then galvanically nickel-plated, wherein the nickel layer is deposited on the adhesive and the hard material grains are enclosed by the nickel bond. They thus remain completely enclosed in the depressions up to a certain grain height, whereby physical and / or chemical bonds, such as, for example, a nickel or solder bond, also support the retention of the particles in the desired direction. It is advantageous in this sense if the depressions in the base body are designed and dimensioned in such a way that a certain orientation of the hard material grains, which are preferably in the form of dodecahedra, is thereby effected.
  • the wells are sized and configured so that they can accommodate hard grains of uniform grain shape and / or grain size.
  • the dressing tool shown serves for dressing the flanks of grinding worms, which are used, for example, for grinding appropriately designed gears.
  • Such dressing tools can have one or more such basic body 2 with a corresponding number of working surfaces 6. These work surfaces can also be provided with special profile shapes and also the dressing tools can be made as a dressing gears.
  • the dressing tool 1 consists of a base body 2 with a cylindrical shaft 3, which is coupled with a rotary drive for driving the rotatable about the axis 4 base body 2.
  • the flanks 5 of the main body form the working surfaces 6 of the tool. For this purpose, they are equipped with a coating of hard grains 7.
  • the embedded by a nickel bond 9 hard material grains 7 are provided as diamond grains having a grain diameter of, for example, 400 microns and a preferably dodecahedral shape.
  • a nickel bond 9 hard material grains 7 are provided as diamond grains having a grain diameter of, for example, 400 microns and a preferably dodecahedral shape.
  • other grain shapes and sizes as well as other materials such as superabrasive or similar superabrasive materials may be used.
  • FIG. 3 to FIG. 5 are in the body 2 according to the invention exactly defined distributed arranged recesses. 8 introduced, the shape and dimensions of which is adapted to the hard material grains 7 so that they can absorb the grains up to a certain grain height approximately form-fitting. Due to their particular configuration, they are also able to give the hard material grains 7 the orientation that is optimal for the function of the tool. Thus, the depth T of the respective depression and also the projecting height H of the grain can be determined, and thus the parameters for an optimum dressing and a maximum service life of the tool can be designed accordingly.
  • the recesses 8 are preferably either drilled, impressed and / or lasered into the main body 2, depending on which material of the normally metal base body 2 is made.
  • the distribution density of the recesses 8 on the working surface 6 of the tool is chosen so that in the finished tool, the distances between the grains 7 on the inside, for example, about half the grain size D amount, these distances are uniform in the described embodiment, both in the horizontal and in the vertical direction ,
  • the recesses 8 with respect to the center axis 4 of the tool outside distributed more densely than inside, so that the finished tool this outside is provided with more hard grains per unit area than inside, as normally the outside grains and thus longer in use than the internal particles.
  • the recesses 8 on the work surfaces 6 of the body After introducing the recesses 8 on the work surfaces 6 of the body they are filled with an electrically conductive adhesive, and the excess adhesive is then removed, for example, with a doctor over the base body 2. Thereafter, the diamond grains 7 are thrown onto the work surface 6, wherein the grains remain adhesive only in the recesses 8 filled with adhesive.
  • the grain distribution can be varied over the work surface 6 in a variety of ways. In this way always results in a well-defined distribution of the grains on the working surface of the tool.
  • the inventive design of the tool thus has the advantage in principle that it ensures a precise positioning of the hard grains on the working surface of the tool which can be precisely determined in advance. By appropriate definition of this size, the tool can be improved so that it is optimal for the particular application.
  • the resulting diamond coating can then be galvanically nickel-plated.
  • the adhesive for the diamond grains is selected to be compatible with the chemicals of the subsequent galvanic process. Since the adhesive used is electrically conductive, the nickel layer can be easily deposited on it, so that the diamond grains glued into the recesses are neatly enclosed by the nickel bond. In this way the indentation edges become sealed, and the diamond grains get a better backing.
  • the embodiment described above relates to a base body for dressing tools, which are intended in particular for dressing grinding worms.
  • the invention is also readily applicable to other similarly working tools, such as grinding or honing tools.

Description

Die Erfindung betrifft ein Abrichtwerkzeug, welches einen Grundkörper mit einer Arbeitsfläche und auf dieser Arbeitsfläche verteilt angeordneten Hartstoffkörnern umfasst.The invention relates to a dressing tool which comprises a base body with a working surface and distributed on this work surface arranged hard material grains.

Ein solches Werkzeug ist in der Druckschrift EP-A-2 535 145 geoffenbart. Das dort beschriebene Werkzeug wird insbesondere zum Abrichten von Schleifscheiben bzw. Schleifschnecken zum Schleifen von Zahnrädern und ähnlichen Bauteilen eingesetzt. Beim Herstellungsverfahren des Werkzeuges wird vorerst ein Klebstoff mit einer definierten Filmdicke auf die Arbeitsfläche des herzustellenden Werkzeuges aufgebracht und anschliessend werden die Hartstoffkörner auf die mit dem Klebstoff versehene Arbeitsfläche aufgetragen und bleiben dort als Partikelbelag nach der Aushärtung des Klebstoffs dauerhaft verbunden.Such a tool is in the document EP-A-2 535 145 revealed. The tool described there is used in particular for dressing grinding wheels or grinding worms for grinding gears and similar components. In the manufacturing process of the tool, an adhesive with a defined film thickness is first applied to the working surface of the tool to be produced, and then the hard material grains are applied to the work surface provided with the adhesive and remain permanently bonded there as a particle coating after the adhesive has cured.

Dieses bekannte Verfahren ermöglicht zwar eine schnelle Belegung des Grundkörpers mit den dafür vorgesehenen Partikeln, aber nicht eine einwandfrei gleichmässige Verteilungsdichte der Hartstoffkörner über die Arbeitsfläche des Werkzeugs. Das kann die Qualität der mit dem Werkzeug erzielbaren Schleifwirkung beeinträchtigen.Although this known method allows rapid occupancy of the body with the appropriate particles, but not a perfectly uniform distribution density of hard grains over the working surface of the tool. This can affect the quality of the achievable with the tool grinding effect.

Gemäss der Druckschrift DE-Gbm 298 19 006 ist eine Diamant-Abrichtscheibe geoffenbart, bei welcher in oder an den Kantenbereichen Ausnehmungen in Form von Nuten oder Löchern genähert radial eingebracht werden, in diese längliche Diamanten eingelegt und mit einem Metall in oder an der Abrichtscheibe befestigt werden. Diese Abrichtscheibe bezieht sich auf in Nuten befestigbare längliche Diamanten und zudem ist nur eine Verwendung in oder an den Kantenbereichen vorgesehen. Ferner sind nebst diesen länglichen Diamanten auch mehrere Flächen mit Diamantkörnern auf herkömmliche Weise belegt.According to DE-Gbm 298 19 006, a diamond dressing wheel is disclosed in which recesses in the form of grooves or holes are brought radially in or at the edge regions, inserted into these elongated diamonds and fastened with a metal in or on the dressing wheel become. This dressing wheel refers to elongated diamonds which can be fastened in grooves and, moreover, only one use is intended in or at the edge regions. Furthermore, in addition to this elongated diamond, several surfaces with diamond grains are also conventionally coated.

Die Druckschrift US-A-2009/0038234 ist auf Pads bezogen, Es sind Diamantenschleifkörner verteilt über die flache Oberfläche eines Pads in entsprechenden Vertiefungen befestigt, wobei sie mit ihren scharfen Ecken obere Spitzen im eingeklebten Zustand bilden. Ein solches Pad ist aufgrund seines Aufbaus und der verwendeten Materialien aus Kunststoffen flexibel und leicht verformbar bzw. aufschmelzbar hergestellt. Damit lassen sich Diamantenschleifkörner auf einfachem Wege einarbeiten und darin fixieren, was aber nicht vergleichbar ist mit einem gattungsmässigen Abrichtwerkzeug.The publication US-A-2009/0038234 It is mounted on pads. There are diamond abrasive grains distributed over the flat surface of a pad in corresponding recesses, forming with their sharp corners top tips in the glued state. Such a pad is made flexible and easily deformable or meltable due to its structure and the materials used in plastics. This diamond grinding grains can be easily incorporated and fixed in it, but this is not comparable to a generic dressing tool.

Der Erfindung liegt die Aufgabe zugrunde, ein Abrichtwerkzeug sowie ein Verfahren zu dessen Herstellung zu schaffen, bei dem der Grundkörper des Werkzeugs mit einer verbesserten Verteilung der Hartstoffkörner belegt und mit ihm damit einer Optimierung seiner Arbeitsfläche hinsichtlich seiner Schneidwirkung erzielt wird.The invention has for its object to provide a dressing tool and a method for its production, in which the main body of the tool occupied with an improved distribution of the hard grains and with it thus an optimization of his work surface is achieved in terms of its cutting action.

Diese Aufgabe wird gemäß der Erfindung durch ein Abrichtwerkzeug nach Anspruch 1 und ein Verfahren zur Herstellung des Abrichtwerkzeugs nach Anspruch 9 gelöst, wobei in den Grundkörper Vertiefungen zur Aufnahme der Hartstoffkörner eingebracht werden, deren Geometrie an die der Hartstoffkörner angepasst ist. Die in den Vertiefungen aufgenommenen Partikel werden auf diese Weise individuell exakt positioniert, nämlich entsprechend der Anordnung bzw. Verteilung der Vertiefungen auf der Arbeitsfläche des Werkzeugs. Die Hartstoffkörner können somit mit einer definierten Verteilungsdichte aufgebracht werden, indem die sie aufnehmenden Vertiefungen entsprechend verteilt auf die Arbeitsfläche des Werkzeugs eingebracht werden.This object is achieved according to the invention by a dressing tool according to claim 1 and a method for producing the dressing tool according to claim 9, wherein in the body recesses for receiving the hard material grains are introduced, the geometry of which is adapted to the hard grains. The particles received in the depressions are individually positioned in this way exactly, namely according to the arrangement or distribution of the depressions on the working surface of the tool. The hard material grains can thus be applied with a defined distribution density by the receiving depressions are distributed appropriately distributed on the working surface of the tool.

Eine in der Praxis besonders vorteilhafte Verteilungsdichte ergibt sich durch eine Anordnung der Vertiefungen, aus der beim fertigen Werkzeug eine bestimmte Beabstandung der Hartstoffkörner bezogen auf ihre Innenseiten in Relation zu der Korngrösse erfolgt.A distribution density which is particularly advantageous in practice results from an arrangement of the depressions from which, in the case of the finished tool, a certain spacing of the hard material grains relative to their inner sides takes place in relation to the particle size.

Es kann auch oft vorteilhaft sein, wenn die Vertiefungen, bezogen auf die Mittelachse des Werkzeugs, aussen dichter verteilt als innen eingebracht werden.It can also often be advantageous if the recesses, relative to the central axis of the tool, are distributed more densely outside than inside.

Die erfindungsgemässen Vertiefungen werden in der Regel so dimensioniert und ausgestaltet, dass sie jeweils ein Hartstoffkorn aufnehmen können. Es ist jedoch im Rahmen der Erfindung auch möglich, die Vertiefungen je nach Korngrösse und/oder Formgebung der Partikel so zu dimensionieren und zu gestalten, dass sie jeweils mehr als ein einziges Korn aufnehmen können.The recesses according to the invention are generally dimensioned and designed such that they can each accommodate one hard material grain. However, it is within the scope of the invention also possible to dimension and shape the depressions depending on the particle size and / or shape of the particles so that they can each accommodate more than a single grain.

Erfindungsgemäss werden die Vertiefungen in den Grundkörper durch Einbohren oder Einprägen derselben eingebracht. Da der Grundkörper normalerweise metallisch ist, können beide Fertigungsverfahren ohne grossen apparativen Aufwand angewandt werden. Je nach Beschaffenheit des Grundkörpers sind aber prinzipiell auch andere Fertigungsverfahren, wie etwa laserbetriebene Verfahren, anwendbar.According to the invention, the depressions are introduced into the basic body by drilling in or impressing the same. Since the main body is usually metallic, both manufacturing methods can be applied without great expenditure on equipment. Depending on the nature of the body, however, other manufacturing methods, such as laser-operated methods, are applicable in principle.

Die Erfindung sieht weiterhin vor, dass die in den Grundkörper eingebrachten Vertiefungen mit einem vorzugsweise elektrisch leitenden Klebstoff gefüllt werden, wobei der überschüssige Klebstoff über den Grundkörper abgezogen wird und anschliessend die Hartstoffkörner auf den Grundkörper geschleudert werden. Auf diese Weise ist sichergestellt, dass auf der Arbeitsfläche des Werkzeugs nur die in den Vertiefungen befindlichen Partikel festgeklebt bleiben.The invention further provides that the recesses introduced into the base body are filled with a preferably electrically conductive adhesive, wherein the excess adhesive is drawn off via the base body and then the hard material grains are thrown onto the base body. In this way it is ensured that only the particles located in the depressions remain stuck on the working surface of the tool.

Die Erfindung sieht ebenfalls vor, dass der entstandene Partikelbelag anschliessend galvanisch eingenickelt wird, wobei die Nickelschicht auf dem Kleber abgeschieden wird und die Hartstoffkörner von der Nickelbindung umschlossen werden. Sie bleiben somit in den Vertiefungen bis zu einer bestimmten Kornhöhe vollkommen eingeschlossen, wobei physikalische und/oder chemische Bindungen, wie zum Beispiel eine Nickel- oder Lotbindung, auch den Rückhalt der Partikel in der gewünschten Richtung unterstützt. Es ist in diesem Sinne vorteilhaft, wenn die Vertiefungen im Grundkörper so gestaltet und bemessen sind, dass dadurch eine gewisse Orientierung der vorzugsweise als Dodekaeder ausgebildeten Hartstoffkörner bewirkt wird.The invention also provides that the resulting particle coating is then galvanically nickel-plated, wherein the nickel layer is deposited on the adhesive and the hard material grains are enclosed by the nickel bond. They thus remain completely enclosed in the depressions up to a certain grain height, whereby physical and / or chemical bonds, such as, for example, a nickel or solder bond, also support the retention of the particles in the desired direction. It is advantageous in this sense if the depressions in the base body are designed and dimensioned in such a way that a certain orientation of the hard material grains, which are preferably in the form of dodecahedra, is thereby effected.

Zweckmässigerweise sind die Vertiefungen so dimensioniert und ausgestaltet, dass sie Hartstoffkörner mit gleichmässiger Kornform und/oder Korngrösse aufnehmen können.Conveniently, the wells are sized and configured so that they can accommodate hard grains of uniform grain shape and / or grain size.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigt:

Fig. 1
ein Abrichtwerkzeug mit einem Grundkörper, vereinfacht und leicht perspektivisch dargestellt,
Fig. 2
eine Ansicht eines Teilbereichs der Arbeitsfläche des Abrichtwerkzeugs nach Fig. 1;.
Fig. 3
ein einzelnes Hartstoffkorn der Arbeitsfläche nach Fig. 1, perspektivisch dargestellt,
Fig. 4
einen Grundriss dieses Hartstoffkorns nach Fig. 3, und
Fig. 5
einen Schnitt entlang der Linie A-A gemäss Fig. 4.
The invention will be explained in more detail with reference to an embodiment with reference to the drawing. It shows:
Fig. 1
a dressing tool with a basic body, simplified and slightly shown in perspective,
Fig. 2
a view of a portion of the working surface of the dressing tool after Fig. 1 ;.
Fig. 3
a single hard material grain of the work surface Fig. 1 , shown in perspective,
Fig. 4
a floor plan of this hard material grain Fig. 3 , and
Fig. 5
a section along the line AA according to Fig. 4 ,

Das in Fig. 1 dargestellte Abrichtwerkzeug dient zum Abrichten der Flanken von Schleifschnecken, die beispielsweise zum Schleifen von entsprechend ausgebildeten Zahnrädern eingesetzt werden. Solche Abrichtwerkzeuge können eine oder mehrere solcher Grundkörper 2 mit einer entsprechenden Anzahl von Arbeitsflächen 6 aufweisen. Diese Arbeitsflächen können auch mit speziellen Profilformen versehen und zudem können die Abrichtwerkzeuge als Abrichtzahnräder hergestellt sein.This in Fig. 1 The dressing tool shown serves for dressing the flanks of grinding worms, which are used, for example, for grinding appropriately designed gears. Such dressing tools can have one or more such basic body 2 with a corresponding number of working surfaces 6. These work surfaces can also be provided with special profile shapes and also the dressing tools can be made as a dressing gears.

Das Abrichtwerkzeug 1 besteht aus einem Grundkörper 2 mit einem zylindrischen Schaft 3, der mit einem Drehantrieb zum Antreiben des um die Achse 4 drehbaren Grundkörpers 2 koppelbar ist. Die Flanken 5 des Grundkörpers bilden die Arbeitsflächen 6 des Werkzeugs. Zu diesem Zweck sind sie mit einem Belag aus Hartstoffkörnern 7 ausgestattet.The dressing tool 1 consists of a base body 2 with a cylindrical shaft 3, which is coupled with a rotary drive for driving the rotatable about the axis 4 base body 2. The flanks 5 of the main body form the working surfaces 6 of the tool. For this purpose, they are equipped with a coating of hard grains 7.

Ein Teilbereich des Belags ist in Fig. 2 stark vergrössert dargestellt. Bei dem beschriebenen Ausführungsbeispiel sind die durch eine Nickelbindung 9 eingebetteten Hartstoffkörner 7 als Diamantkörner mit einem Korndurchmesser von beispielsweise 400 µm und einer vorzugsweise dodekaedrischen Gestalt vorgesehen. Je nach Einsatzbedingungen können aber selbstverständlich auch andere Kornformen und -grössen sowie andere Materialien wie superabrasives oder ähnliche hochabrasive Werkstoffe verwendet werden.A portion of the surface is in Fig. 2 shown greatly enlarged. In the described embodiment, the embedded by a nickel bond 9 hard material grains 7 are provided as diamond grains having a grain diameter of, for example, 400 microns and a preferably dodecahedral shape. Of course, depending on the conditions of use, other grain shapes and sizes as well as other materials such as superabrasive or similar superabrasive materials may be used.

Wie aus Fig. 3 bis Fig. 5 im Detail ersichtlich ist, sind im Grundkörper 2 erfindungsgemäss genau definiert verteilt angeordnete Vertiefungen 8 eingebracht, deren Gestalt und Dimensionen an die der Hartstoffkörner 7 so angepasst ist, dass sie die Körner bis zu einer bestimmten Kornhöhe annähernd formschlüssig aufnehmen können. Sie sind auch aufgrund ihrer besonderen Ausgestaltung in der Lage, den Hartstoffkörnern 7 die Ausrichtung zu geben, die jeweils für die Funktion des Werkzeugs optimal ist. So ist die Tiefe T der jeweiligen Vertiefung und auch die vorstehende Höhe H des Kornes bestimmbar und somit können die Parameter für ein optimales Abrichten und einer maximalen Lebensdauer des Werkzeuges entsprechend ausgelegt werden.How out FIG. 3 to FIG. 5 can be seen in detail, are in the body 2 according to the invention exactly defined distributed arranged recesses. 8 introduced, the shape and dimensions of which is adapted to the hard material grains 7 so that they can absorb the grains up to a certain grain height approximately form-fitting. Due to their particular configuration, they are also able to give the hard material grains 7 the orientation that is optimal for the function of the tool. Thus, the depth T of the respective depression and also the projecting height H of the grain can be determined, and thus the parameters for an optimum dressing and a maximum service life of the tool can be designed accordingly.

Die Vertiefungen 8 werden in den Grundkörper 2 vorzugsweise entweder eingebohrt, eingeprägt und/oder gelasert, je nachdem aus welchem Material der normalerweise metallene Grundkörper 2 hergestellt ist. Die Verteilungsdichte der Vertiefungen 8 auf der Arbeitsfläche 6 des Werkzeugs ist so gewählt, dass im fertigen Werkzeug die Abstände zwischen den Körnern 7 innenseitig beispielsweise ungefähr die halbe Korngrösse D betragen, wobei diese Abstände beim beschriebenen Ausführungsbeispiel sowohl in horizontaler als auch in vertikaler Richtung gleichmässig sind.The recesses 8 are preferably either drilled, impressed and / or lasered into the main body 2, depending on which material of the normally metal base body 2 is made. The distribution density of the recesses 8 on the working surface 6 of the tool is chosen so that in the finished tool, the distances between the grains 7 on the inside, for example, about half the grain size D amount, these distances are uniform in the described embodiment, both in the horizontal and in the vertical direction ,

Je nach Beschaffenheit der Körner und/oder Arbeitsweise des Werkzeugs ist es selbstverständlich möglich, die Verteilungsdichte der Vertiefungen und somit die des Kornbelags ganzflächig oder auch zonenweise zu variieren. Im letzteren Fall werden die Vertiefungen 8 in Bezug auf die Mittelachse 4 des Werkzeugs aussen dichter verteilt als innen angebracht, damit beim fertigen Werkzeug dieses aussen mit mehr Hartstoffkörnern pro Flächeneinheit als innen versehen ist, da im Normalfall die aussenliegenden Körner zuerst und somit länger in Einsatz sind als die innenliegenden Partikel.Depending on the nature of the grains and / or operation of the tool, it is of course possible to vary the distribution density of the wells and thus the grain covering over the entire surface or even zonewise. In the latter case, the recesses 8 with respect to the center axis 4 of the tool outside distributed more densely than inside, so that the finished tool this outside is provided with more hard grains per unit area than inside, as normally the outside grains and thus longer in use than the internal particles.

Nach Einbringen der Vertiefungen 8 auf die Arbeitsflächen 6 des Grundkörpers werden sie mit einem elektrisch leitenden Klebstoff gefüllt, und der überschüssige Klebstoff wird anschliessend beispielweise mit einer Rakel über den Grundkörper 2 abgezogen. Danach werden die Diamantkörner 7 auf die Arbeitsfläche 6 geschleudert, wobei die Körner nur in den mit Klebstoff gefüllten Vertiefungen 8 haftend bleiben. Durch eine entsprechende Anordnung der Vertiefungen lässt sich die Kornverteilung über die Arbeitsfläche 6 in vielfältiger Weise variieren. Auf diese Weise ergibt sich immer eine genau definierte Verteilung der Körner über die Arbeitsfläche des Werkzeugs.After introducing the recesses 8 on the work surfaces 6 of the body they are filled with an electrically conductive adhesive, and the excess adhesive is then removed, for example, with a doctor over the base body 2. Thereafter, the diamond grains 7 are thrown onto the work surface 6, wherein the grains remain adhesive only in the recesses 8 filled with adhesive. By an appropriate arrangement of the recesses, the grain distribution can be varied over the work surface 6 in a variety of ways. In this way always results in a well-defined distribution of the grains on the working surface of the tool.

Die erfindungsgemässe Ausbildung des Werkzeugs hat somit grundsätzlich den Vorteil, dass sie eine vorab genau festlegbare Positionierung der Hartstoffkörner auf der Arbeitsfläche des Werkzeugs gewährleistet. Durch entsprechende Festlegung dieser Grösse kann das Werkzeug so verbessert werden, dass es für den jeweiligen Einsatzfall optimal ist.The inventive design of the tool thus has the advantage in principle that it ensures a precise positioning of the hard grains on the working surface of the tool which can be precisely determined in advance. By appropriate definition of this size, the tool can be improved so that it is optimal for the particular application.

Der entstehende Diamantbelag kann anschliessend galvanisch eingenickelt werden. In diesem Fall ist der Kleber für die Diamantkörner so gewählt, dass er mit den Chemikalien des nachfolgenden galvanischen Prozesses verträglich ist. Da der verwendete Kleber elektrisch leitend ist, kann die Nickelschicht problemlos auf ihm abgeschieden werden, so dass die in die Vertiefungen eingeklebten Diamantkörner sauber von der Nickeibindung umschlossen werden. Auf diese Weise werden die Vertiefungsränder abgedichtet, und die Diamantkörner erhalten einen besseren Rückhalt.The resulting diamond coating can then be galvanically nickel-plated. In this case, the adhesive for the diamond grains is selected to be compatible with the chemicals of the subsequent galvanic process. Since the adhesive used is electrically conductive, the nickel layer can be easily deposited on it, so that the diamond grains glued into the recesses are neatly enclosed by the nickel bond. In this way the indentation edges become sealed, and the diamond grains get a better backing.

Das vorstehend beschriebene Ausführungsbeispiel betrifft einen Grundkörper für Abrichtwerkzeuge, die insbesondere zum Abrichten von Schleifschnecken bestimmt sind. Die Erfindung ist wie oben erwähnt aber auch ohne weiteres bei anderen ähnlich arbeitenden Werkzeugen, wie beispielsweise Schleif- oder Honwerkzeugen, anwendbar.The embodiment described above relates to a base body for dressing tools, which are intended in particular for dressing grinding worms. As mentioned above, however, the invention is also readily applicable to other similarly working tools, such as grinding or honing tools.

Claims (10)

  1. A dressing tool, which comprises a main body (2) with a working surface (6) and hard-material grains (7) distributed over this working surface, whereas the main body (2) with a shaft (3) that can be coupled to a rotary drive from the working surface (6) that can be rotated about the axis (4), characterised in that a number of recesses (8) produced distances apart from one another are incorporated individual into the main body (2), with a parameter density being consistent in both the horizontal and in the vertical direction over the working surface (6) in which the hard-material grains (7) are absorbed, whereas the recesses are dimensioned and equipped, so that in each of the recesses a hard-material grain is accommodated and their depth (T) and also the projecting height (H) of the grain can be determined.
  2. The dressing tool according to Claim 1, characterised in that a specific number of recesses (8) produced defined distances apart from another are incorporated into the main body (2), in which recesses hard-material grains (7) are accommodated.
  3. The dressing tool according to Claim 1 or 2, characterised in that the geometry of the recesses (8) are adapted to that of the hard-material grains (7), so that the hard-material grains (7) are respectively held therein with more or less form-fit.
  4. The dressing tool according to any of the preceding Claims 1 to 3, characterised in that
    the distribution density of the recesses (8) over the working surface (6) of the main body (2) is specified such that the distances between the hard-material grains (7) correspond approximately in proportion to the grain size (D).
  5. The dressing tool according to any of the preceding Claims 1 to 4, characterised in that
    the recesses (8) are created in relation to the central axis (4) of the tool differently on the outside than on the inside.
  6. The dressing tool according to any of the preceding Claims 1 to 5, characterised in that
    the recesses (8) are drilled, stamped and/or lasered into the main body (2).
  7. The dressing tool according to any of the preceding Claims 1 to 6, characterised in that
    the recesses (8) are dimensioned so that they enable specific orientation of the hard-material grains (7) preferably in the form of dodecahedrons.
  8. The dressing tool according to any of the preceding Claims 1 to 6, characterised in that
    the recesses (8) are dimensioned so that they enable the use of hard-material grains (7) with a consistent grain shape and grain size.
  9. A method for the production of a dressing tool according to any of Claims 1 to 8, characterised in that
    a number of recesses (8) produced distances apart from one another are incorporated individual into the main body (2), with a parameter density being consistent in both the horizontal and in the vertical direction over the working surface (6), in which the hart-material grains (7) are absorbed, whereas the recesses are dimensioned and equipped, so that in each of the recesses a hard-material grain (7) is accommodated and their depth (T) and also the projecting height (H) of the grain can be determined, whereas the hard-material grains (7) are adhered onto the main body (2) by the recesses (8) being filled with a preferably electrically conductive adhesive, the excess adhesive being removed over the main body (2) with a suitable tool and the hard-material grains (7) then being applied to the main body (2).
  10. The method according to Claim 9, characterised in that
    the grain covering is then provided with a physical and/or chemical bond, such as for example a nickel or solder bond, whereas the nickel layer being deposited on the adhesive, and so the hard-material grains (7) being completely enclosed by the nickel bond (9).
EP13179579.1A 2013-08-07 2013-08-07 Trimming tool, and method for manufacturing the same Active EP2835220B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ES13179579T ES2756849T3 (en) 2013-08-07 2013-08-07 Grinding tool and manufacturing procedure
EP13179579.1A EP2835220B1 (en) 2013-08-07 2013-08-07 Trimming tool, and method for manufacturing the same
JP2016532297A JP2016527095A (en) 2013-08-07 2014-07-18 Rework tool and method for producing the same
US14/905,398 US10160095B2 (en) 2013-08-07 2014-07-18 Dressing tool and method for the production thereof
BR112016001035-3A BR112016001035B1 (en) 2013-08-07 2014-07-18 GRINDING TOOL AND PRODUCTION METHOD
PCT/EP2014/065484 WO2015018627A1 (en) 2013-08-07 2014-07-18 Dressing tool and method for the production thereof
RU2016103056A RU2675328C2 (en) 2013-08-07 2014-07-18 Dressing tool and method for manufacture thereof
CN201480040678.0A CN105612028B (en) 2013-08-07 2014-07-18 Dressing tool and method for manufacturing dressing tool
KR1020157036998A KR102256194B1 (en) 2013-08-07 2014-07-18 Dressing tool and method for the production thereof
JP2019017688A JP7043438B2 (en) 2013-08-07 2019-02-04 Retouching tools and methods for producing them

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13179579.1A EP2835220B1 (en) 2013-08-07 2013-08-07 Trimming tool, and method for manufacturing the same

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EP2835220A1 EP2835220A1 (en) 2015-02-11
EP2835220B1 true EP2835220B1 (en) 2019-09-11

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EP13179579.1A Active EP2835220B1 (en) 2013-08-07 2013-08-07 Trimming tool, and method for manufacturing the same

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US (1) US10160095B2 (en)
EP (1) EP2835220B1 (en)
JP (2) JP2016527095A (en)
KR (1) KR102256194B1 (en)
CN (1) CN105612028B (en)
BR (1) BR112016001035B1 (en)
ES (1) ES2756849T3 (en)
RU (1) RU2675328C2 (en)
WO (1) WO2015018627A1 (en)

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Publication number Publication date
US20160176018A1 (en) 2016-06-23
BR112016001035B1 (en) 2022-01-11
ES2756849T3 (en) 2020-04-27
RU2016103056A (en) 2017-09-08
KR20160040146A (en) 2016-04-12
JP7043438B2 (en) 2022-03-29
RU2675328C2 (en) 2018-12-18
CN105612028A (en) 2016-05-25
JP2016527095A (en) 2016-09-08
BR112016001035A2 (en) 2017-07-25
JP2019089199A (en) 2019-06-13
CN105612028B (en) 2019-10-22
RU2016103056A3 (en) 2018-06-25
EP2835220A1 (en) 2015-02-11
US10160095B2 (en) 2018-12-25
KR102256194B1 (en) 2021-05-26
WO2015018627A1 (en) 2015-02-12

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