EP3829814B1 - Slide-grinding body - Google Patents

Slide-grinding body Download PDF

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Publication number
EP3829814B1
EP3829814B1 EP19780147.5A EP19780147A EP3829814B1 EP 3829814 B1 EP3829814 B1 EP 3829814B1 EP 19780147 A EP19780147 A EP 19780147A EP 3829814 B1 EP3829814 B1 EP 3829814B1
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Prior art keywords
section
grinding body
curved
sections
cross
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German (de)
French (fr)
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EP3829814A1 (en
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Franz Gruber
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Roesler Holding GmbH
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Roesler Holding GmbH
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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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
    • B24B31/14—Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls

Definitions

  • the invention relates to a vibratory grinding body with tapered sections that originate from a base cross-section.
  • This base section preferably consists of a type of unequal triangle. However, it can also be round, elliptical or square or have another geometry.
  • Vibratory grinding wheels are made of EN 10 2006 047 442 B3 and from the DE 25 380 53 A1 These publications describe conical or pyramidal grinding wheels, each of which has a tip section opposite a base surface. The base surface forms the largest diameter in terms of area. Truncated cone-shaped grinding wheels are used in the EN 27 35 399 revealed.
  • the EP 05 23 624 A2 describes the composition of a substantially truncated cone-shaped grinding body. The basic cross-section of a grinding body described therein has a cylindrical shape.
  • the US 2,947,124 A describes variously designed, including prismatically shaped, vibratory grinding bodies.
  • vibratory grinding bodies For the vibratory grinding of complex and precise workpieces with deep pockets or blind holes, vibratory grinding bodies are required that are small or that are designed in such a way that they reach the workpiece surface to be machined evenly without jamming. Furthermore, the grinding bodies should be shaped in such a way that sieve separation is possible.
  • the invention is based on the task of improving the application of the smoothing grinding bodies.
  • the clamping tendency should be significantly reduced and very uniform machining over complex workpiece surfaces can be ensured.
  • a basic idea of the invention is to provide an abrasive body that has a completely irregular shape.
  • the central base cross-section is the largest and is preferably formed by a type of triangle.
  • the two shorter legs are curved outwards and the long leg is curved inwards.
  • Any other geometries can also be used for the base cross-section, such as a circle, ellipse, rectangle, square, polygon with straight or curved flanks with and without rounding, star, angle or the like.
  • the cross-section decreases linearly or exponentially towards the tips.
  • Each point can also be overlaid by a helix that originates from the base cross-section.
  • the transition between the two helices in the base cross-section can be rounded with a radius.
  • the material of the grinding wheel can be more or less abrasive depending on the application. It can be a compound material.
  • the material can be a ceramic material. It is also possible that hard material particles are embedded in a synthetic resin mass, for example in a polyester mass or in an epoxy resin mass or the like. For certain applications, a design made of metal, e.g. steel or stainless steel, is also conceivable. Designs made of various plastics and organic materials are also possible.
  • the size of the vibratory grinding body can be adapted to suit the application.
  • the size and shape of the basic cross-section, the length and rounding of the tapered areas as well as the pitch and diameter of the helix can also be adapted to the application. Depending on the design, this geometric shape can be used for various surface treatment processes.
  • the sliding grinding body 1 of the embodiment has exactly two tapered sections 2, which arise helically from a larger central cross-section 4.
  • the two sections 2 are superimposed with two helical curves and arise from a connecting Base cross-section 4.
  • the middle base cross-section 4 is the largest and is formed by a type of triangle 5, with the two shorter legs 6 curved outwards and the long leg 7 curved inwards.
  • the cross-section reduces exponentially towards the tips 2.
  • Each tapered section 2 is additionally overlaid by a helix 3 which originates from the base cross-section 4.
  • the transition of the two helices 3 in the base cross-section 4 is rounded with a radius 9. From the cross-section, the two tapered sections 2 each screw away from the concave side 7 in a helical manner.
  • the grinding body 1 consists, for example, of a ceramic material. However, it can also have hard material particles, in particular abrasive ceramic particles, which are bound in a plastic matrix.
  • the size of the vibratory grinding wheel 1 corresponds approximately to that of the already known grinding wheel geometries, but can be selected to be approximately 50% larger depending on the application.
  • the size and shape of the basic cross-section, the length and rounding of the tapering, as well as the pitch and diameter of the helix can also be adapted to the application.
  • the invention relates, among other things, to a vibratory grinding body 1 with a number of tapered, preferably rounded sections 2, which are superimposed with helical curvatures 3 and originate from a base cross-section 4 connecting the sections.
  • This base cross-section 4 preferably consists of a type of unequal triangle 5.
  • the base cross-section 4 preferably has curved legs 6, 7 and rounded edges 8, but can also be round, elliptical, square or have another geometry. If exactly two sections are provided, the transition between the two tapered sections 2 in the area of the base cross-section 4 is preferably rounded with a transition radius 9.
  • the invention thus relates, among other things, to a vibratory grinding body 1 with one or more tapered sections 2 and a base cross-section 4 connected to the latter by curvatures 3.
  • This preferably consists of a type of unequal triangle 5, but can also be round, elliptical, square or have another geometry.
  • the vibratory grinding body according to the invention is characterized in that the tapered portions 2 decrease exponentially.
  • the vibratory grinding body according to the invention is characterized in that the curved tapered portions 2 extend in a helical shape.
  • the vibratory grinding body according to the invention is characterized in that the helical curvatures 3 protrude symmetrically from the base cross-section 4.
  • the vibratory grinding body according to the invention is characterized in that the helical curvatures 3 in the region of the base cross section 4 are rounded with a radius.
  • the vibratory grinding body according to the invention is characterized in that the base cross-section consists of a type of triangle (5) whose legs 6, 7 are curved.
  • the vibratory grinding body according to the invention is characterized in that the base cross-section 4 is rounded at the corners 8.
  • the vibratory grinding body according to the invention is characterized in that the tip portion 2 is rounded.
  • the vibratory grinding body according to the invention is characterized in that it is adapted to other known applications, such as as blasting or abrasive grain or as a polishing, drying and cleaning aid.
  • the invention relates, inter alia, to a vibratory grinding body 1 with two tapered sections 2 which emerge from a base section 4 in a curved or curved and helical manner, the base cross section 4 forming a triangle in which the two shorter legs are curved outwards and the long leg is curved inwards, the cross section of the sections 2 decreasing towards the tips, preferably in such a way that the cross sections of the tapered sections 2 decrease linearly or exponentially.
  • the invention relates, inter alia, to a vibratory grinding body 1 with two tapering sections 2 which originate from a base section 4 in a curved or curved and helical manner, wherein the geometry of the base cross section 4 has curved flanks, wherein the mean base cross section is the largest and the cross section decreases towards the tips of the sections 2 preferably linearly or exponentially.
  • the invention relates, inter alia, to a vibratory grinding body 1 with a number of tapered sections 2 which originate from a base cross-section 4, wherein the base cross-section 4 is not isosceles.
  • the invention relates in particular to a vibratory grinding body 1 in which the legs 6, 7 of the base cross-section are curved differently.
  • the invention relates in particular to a vibratory grinding body 1 in which the curved and helical sections 2 all have the same screw direction.
  • the invention relates in particular to a vibratory grinding body 1 in which the curved and helical sections 2 have different screw directions; in other words, the helices preferably have different screw directions.
  • the invention relates in particular to a vibratory grinding body 1 in which the sections 2 arise symmetrically from the base cross-section 4.
  • the invention relates to a vibratory grinding body 1 with a number of sections 2.
  • the invention relates to a vibratory grinding body 1 with one or more sections 2.
  • the invention also relates to those embodiments of the vibratory grinding bodies described above that are not shown in the figures, in which the vibratory grinding body 1 has only a single tapered section 2 or consists essentially of a single such section.
  • the invention also relates to those embodiments of the vibratory grinding bodies described above that are not shown in the figures, in which the vibratory grinding body 1 does not not only one or two, but three or more tapering sections 2 which originate from a corresponding base cross-section 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

Die Erfindung betrifft einen Gleitschleifkörper mit sich zuspitzenden Abschnitten, die einem Basisquerschnitt entspringen. Dieser Basisabschnitt besteht vorzugsweise aus einer Art ungleichem Dreieck. Er kann aber auch rund, elliptisch oder quadratisch sein oder eine andere Geometrie aufweisen.The invention relates to a vibratory grinding body with tapered sections that originate from a base cross-section. This base section preferably consists of a type of unequal triangle. However, it can also be round, elliptical or square or have another geometry.

Gleitschleifkörper sind aus der DE 10 2006 047 442 B3 und aus der DE 25 380 53 A1 vorbekannt. Diese Druckschriften beschreiben kegelförmige bzw. pyramidale Schleifkörper, die jeweils einen Spitzenabschnitt besitzen, dem eine Basisfläche gegenüberliegt. Die Basisfläche bildet jeweils den flächengrößten Durchmesser. Kegelstumpfförmige Schleifkörper werden in der DE 27 35 399 offenbart. Die EP 05 23 624 A2 beschreibt anhand eines im Wesentlichen kegelstumpfförmigen Gleitschleifkörpers dessen Zusammensetzung. Der Basisquerschnitt eines dort beschriebenen Gleitschleifkörpers hat eine Zylinderform. Die US 2,947,124 A beschreibt verschieden gestaltete, u.a. auch prismatisch geformte Gleitschleifkörper.Vibratory grinding wheels are made of EN 10 2006 047 442 B3 and from the DE 25 380 53 A1 These publications describe conical or pyramidal grinding wheels, each of which has a tip section opposite a base surface. The base surface forms the largest diameter in terms of area. Truncated cone-shaped grinding wheels are used in the EN 27 35 399 revealed. The EP 05 23 624 A2 describes the composition of a substantially truncated cone-shaped grinding body. The basic cross-section of a grinding body described therein has a cylindrical shape. The US 2,947,124 A describes variously designed, including prismatically shaped, vibratory grinding bodies.

Zum Gleitschleifen von komplexen und präzisen Werkstücken mit tiefen Taschen bzw. Sacklöchern werden Gleitschleifkörper benötigt, die klein bzw. die so gestaltet sind, dass sie die zu bearbeitende Werkstückoberfläche gleichmäßig erreichen, ohne zu verklemmen. Ferner sollten die Schleifkörper so geformt sein, dass eine Siebtrennung möglich ist.For the vibratory grinding of complex and precise workpieces with deep pockets or blind holes, vibratory grinding bodies are required that are small or that are designed in such a way that they reach the workpiece surface to be machined evenly without jamming. Furthermore, the grinding bodies should be shaped in such a way that sieve separation is possible.

Der Erfindung liegt die Aufgabe zugrunde, die glättungsbildenden Schleifkörper anwendungstechnisch zu verbessern. Insbesondere soll die Klemmneigung deutlich reduziert und eine sehr gleichmäßige Bearbeitung über komplexe Werkstückoberflächen gewährleistet werden.The invention is based on the task of improving the application of the smoothing grinding bodies. In particular, the clamping tendency should be significantly reduced and very uniform machining over complex workpiece surfaces can be ensured.

Gelöst wird die Aufgabe durch einen Gleitschleifkörper mit den Merkmalen der unabhängigen Patentansprüche. Vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved by a vibratory grinding body with the features of the independent patent claims. Advantageous embodiments of the invention are specified in the subclaims.

Ein Grundgedanke der Erfindung besteht darin, einen Schleifkörper bereitzustellen, der eine vollständig unregelmäßige Form aufweist.A basic idea of the invention is to provide an abrasive body that has a completely irregular shape.

Gemäß einer Ausführungsform der Erfindung mit zwei Abschnitten ist zunächst und im Wesentlichen vorgesehen, dass diese zwei zugespitzten Abschnitte einem größeren Mittelquerschnitt gerade oder gekrümmt entspringen. Dadurch entsteht ein bevorzugt symmetrisch sichelförmiger Schleifkörper. Der mittlere Basisquerschnitt ist am größten und wird vorzugsweise durch eine Art Dreieck gebildet. Dabei sind die zwei kürzeren Schenkel nach außen und der lange Schenkel nach innen gekrümmt. Es sind auch beliebige andere Geometrien für den Basisquerschnitt verwendbar wie z.B. Kreis, Ellipse, Rechteck, Quadrat, Vieleck mit geraden oder gekrümmten Flanken mit und ohne Abrundung, Stern, Winkel oder dergleichen.According to an embodiment of the invention with two sections, it is initially and essentially provided that these two tapered sections arise from a larger central cross-section in a straight or curved manner. This creates a preferably symmetrical crescent-shaped grinding body. The central base cross-section is the largest and is preferably formed by a type of triangle. The two shorter legs are curved outwards and the long leg is curved inwards. Any other geometries can also be used for the base cross-section, such as a circle, ellipse, rectangle, square, polygon with straight or curved flanks with and without rounding, star, angle or the like.

Es hat sich für die Eignung des Schleifkörpers als besonders vorteilhaft erwiesen, wenn sich der Querschnitt zu den Spitzen hin linear oder exponentiell verkleinert. Jede Zuspitzung kann zusätzlich von jeweils einer Helix überlagert werden, die aus dem Basisquerschnitt entspringt. Insbesondere bei der Ausführung mit zwei Abschnitten kann der Übergang der beiden Helices im Basisquerschnitt mit einem Radius verrundet sein.It has proven to be particularly advantageous for the suitability of the grinding wheel if the cross-section decreases linearly or exponentially towards the tips. Each point can also be overlaid by a helix that originates from the base cross-section. In the version with two sections in particular, the transition between the two helices in the base cross-section can be rounded with a radius.

Der Werkstoff des Gleitschleifkörpers kann abhängig vom Anwendungsfall mehr oder weniger abrasiv sein. Es kann sich um ein Compound-Material handeln. Der Werkstoff kann ein keramischer Werkstoff sein. Es ist aber auch möglich, dass Hartstoffteilchen in einer Kunstharzmasse, beispielsweise in Polyestermasse oder in einer Epoxydharzmasse oder dergleichen, eingebettet sind. Für bestimmte Anwendungen ist auch eine Ausführung aus Metall, z.B. Stahl oder Edelstahl, denkbar. Es sind auch Ausführungen in verschiedenen Kunststoffen und organischen Materialien möglich.The material of the grinding wheel can be more or less abrasive depending on the application. It can be a compound material. The material can be a ceramic material. It is also possible that hard material particles are embedded in a synthetic resin mass, for example in a polyester mass or in an epoxy resin mass or the like. For certain applications, a design made of metal, e.g. steel or stainless steel, is also conceivable. Designs made of various plastics and organic materials are also possible.

Die Größe des Gleitschleifkörpers kann entsprechend dem Anwendungsfall angepasst werden. Die Größe und Ausprägung des Grundquerschnittes, die Länge und Abrundung der Zuspitzungen sowie die Steigung und Durchmesser der Helix kann den Anwendungen ebenfalls angepasst werden. Je nach Ausführung kann diese Geometrieform für verschiedene Oberflächenbehandlungsverfahren eingesetzt werden.The size of the vibratory grinding body can be adapted to suit the application. The size and shape of the basic cross-section, the length and rounding of the tapered areas as well as the pitch and diameter of the helix can also be adapted to the application. Depending on the design, this geometric shape can be used for various surface treatment processes.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand beigefügter Zeichnungen erläutert. Es zeigen

  • Fig. 1 die Vorderansicht eines Gleitschleifkörpers;
  • Fig. 2 die Seitenansicht eines Gleitschleifkörpers;
  • Fig. 3 die Draufsicht eines Gleitschleifkörper, und
  • Fig. 4 einen Schnitt gemäß der Linie II-II in Fig. 1.
An embodiment of the invention is explained below with reference to the accompanying drawings.
  • Fig.1 the front view of a vibratory grinding wheel;
  • Fig.2 the side view of a vibratory grinding wheel;
  • Fig.3 the top view of a vibratory grinding tool, and
  • Fig.4 a section along line II-II in Fig.1 .

Sämtliche Figuren zeigen die Erfindung nicht maßstabsgerecht, dabei lediglich schematisch und nur mit ihren wesentlichen Bestandteilen. Gleiche Bezugszeichen entsprechen dabei Elementen gleicher oder vergleichbarer Funktion.All figures show the invention not to scale, but only schematically and only with its essential components. The same reference symbols correspond to elements with the same or comparable function.

Der Gleitschleifkörper 1 des Ausführungsbeispiels besitzt genau zwei zugespitzte Abschnitte 2, die einem größeren Mittelquerschnitt 4 helixförmig entspringen. Anders ausgedrückt sind die zwei Abschnitte 2 mit zwei helixförmigen Krümmungen überlagert und entspringen einem sie verbindenden Basisquerschnitt 4. Dadurch entsteht ein symmetrisch sichelförmiger Schleifkörper 1. Der mittlere Basisquerschnitt 4 ist am größten und wird durch eine Art Dreieck 5 gebildet, wobei die zwei kürzeren Schenkel 6 nach außen und der lange Schenkel 7 nach innen gekrümmt sind. Zu den Spitzen 2 hin verkleinert sich der Querschnitt exponentiell. Jede Zuspitzung 2 wird zusätzlich von jeweils einer Helix 3 überlagert, die aus dem Basisquerschnitt 4 entspringt. Der Übergang der beiden Helices 3 im Basisquerschnitt 4 ist mit einem Radius 9 verrundet. Vom Querschnitt aus schrauben sich die zwei Zuspitzungen 2 helixförmig jeweils von der konkaven Seite 7 weg.The sliding grinding body 1 of the embodiment has exactly two tapered sections 2, which arise helically from a larger central cross-section 4. In other words, the two sections 2 are superimposed with two helical curves and arise from a connecting Base cross-section 4. This creates a symmetrical sickle-shaped grinding body 1. The middle base cross-section 4 is the largest and is formed by a type of triangle 5, with the two shorter legs 6 curved outwards and the long leg 7 curved inwards. The cross-section reduces exponentially towards the tips 2. Each tapered section 2 is additionally overlaid by a helix 3 which originates from the base cross-section 4. The transition of the two helices 3 in the base cross-section 4 is rounded with a radius 9. From the cross-section, the two tapered sections 2 each screw away from the concave side 7 in a helical manner.

Der Schleifkörper 1 besteht beispielsweise aus einem keramischen Werkstoff. Er kann aber auch Hartstoffteilchen aufweisen, insbesondere abrasive Keramikteilchen, die in einer Kunststoff-Matrix gebunden sind.The grinding body 1 consists, for example, of a ceramic material. However, it can also have hard material particles, in particular abrasive ceramic particles, which are bound in a plastic matrix.

Die Größe des Gleitschleifkörpers 1 entspricht etwa dem der bereits bekannten Schleifkörpergeometrien, kann aber entsprechend dem Anwendungsfall circa 50% größer gewählt werden. Die Größe und Ausprägung des Grundquerschnittes, die Länge und Abrundung der Zuspitzungen sowie die Steigung und Durchmesser der Helix kann den Anwendungen ebenfalls angepasst werden.The size of the vibratory grinding wheel 1 corresponds approximately to that of the already known grinding wheel geometries, but can be selected to be approximately 50% larger depending on the application. The size and shape of the basic cross-section, the length and rounding of the tapering, as well as the pitch and diameter of the helix can also be adapted to the application.

Die Erfindung betrifft unter anderem einen Gleitschleifkörper 1 mit einer Anzahl sich zuspitzender, vorzugsweise abgerundeter Abschnitte 2, die mit helixförmigen Krümmungen 3 überlagert sind und einem die Abschnitte verbindenden Basisquerschnitt 4 entspringen. Dieser Basisquerschnitt 4 besteht vorzugsweise aus einer Art ungleichem Dreieck 5. Vorzugsweise weist der Basisquerschnitt 4 gewölbte Schenkel 6, 7 und abgerundete Kanten 8 auf, kann aber auch rund, elliptisch, quadratisch sein oder eine andere Geometrie aufweisen. Sind genau zwei Abschnitte vorgesehen, ist der Übergang zwischen den beiden sich zuspitzenden Abschnitten 2 im Bereich des Basisquerschnittes 4 vorzugsweise mit einem Übergangsradius 9 abgerundet.The invention relates, among other things, to a vibratory grinding body 1 with a number of tapered, preferably rounded sections 2, which are superimposed with helical curvatures 3 and originate from a base cross-section 4 connecting the sections. This base cross-section 4 preferably consists of a type of unequal triangle 5. The base cross-section 4 preferably has curved legs 6, 7 and rounded edges 8, but can also be round, elliptical, square or have another geometry. If exactly two sections are provided, the transition between the two tapered sections 2 in the area of the base cross-section 4 is preferably rounded with a transition radius 9.

Die Erfindung betrifft somit unter anderem einen Gleitschleifkörper 1 mit einem oder mehreren sich zuspitzenden Abschnitten 2 und einem diesem mit Krümmungen 3 verbundenen Basisquerschnitt 4. Dieser besteht vorzugsweise aus einer Art ungleichem Dreieck 5, kann aber auch rund, elliptisch, quadratisch sein oder eine andere Geometrie aufweisen.The invention thus relates, among other things, to a vibratory grinding body 1 with one or more tapered sections 2 and a base cross-section 4 connected to the latter by curvatures 3. This preferably consists of a type of unequal triangle 5, but can also be round, elliptical, square or have another geometry.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass die Zuspitzungen 2 sich exponentiell verkleinern.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the tapered portions 2 decrease exponentially.

Gemäß einer Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass die gekrümmten Zuspitzungen 2 helixförmig verlaufen.According to one embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the curved tapered portions 2 extend in a helical shape.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass die helixförmigen Krümmungen 3 symmetrisch aus dem Basisquerschnitt 4 ragen.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the helical curvatures 3 protrude symmetrically from the base cross-section 4.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass die helixförmigen Krümmungen 3 im Bereich des Basisquerschnittes 4 mit einem Radius verrundet sind.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the helical curvatures 3 in the region of the base cross section 4 are rounded with a radius.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass der Basisquerschnitt aus einer Art Dreieck (5) besteht, dessen Schenkel 6, 7 gewölbt sind.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the base cross-section consists of a type of triangle (5) whose legs 6, 7 are curved.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass der Basisquerschnitt 4 an den Ecken 8 abgerundet ist.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the base cross-section 4 is rounded at the corners 8.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass der Spitzenabschnitt 2 abgerundet ist.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that the tip portion 2 is rounded.

Gemäß einer bevorzugten Ausführung der Erfindung ist der erfindungsgemäße Gleitschleifkörper dadurch gekennzeichnet, dass er an andere bekannte Anwendungen angepasst ist, etwa als Strahl- oder Schleifkorn beziehungsweise als Polier-, Trocknungs- und Reinigungshilfsmittel.According to a preferred embodiment of the invention, the vibratory grinding body according to the invention is characterized in that it is adapted to other known applications, such as as blasting or abrasive grain or as a polishing, drying and cleaning aid.

Darüber hinaus betrifft die Erfindung unter anderem einen Gleitschleifkörper 1 mit zwei sich zuspitzenden Abschnitten 2, die einem Basisabschnitt 4 gekrümmt oder gekrümmt und helixförmig entspringen, wobei der Basisquerschnitt 4 ein Dreieck bildet, bei dem die beiden kürzeren Schenkel nach außen und der lange Schenkel nach innen gekrümmt sind, wobei sich der Querschnitt der Abschnitte 2 zu den Spitzen hin verkleinert, vorzugsweise dergestalt, dass sich die Querschnitte der zugespitzten Abschnitte 2 linear oder exponentiell verkleinern.Furthermore, the invention relates, inter alia, to a vibratory grinding body 1 with two tapered sections 2 which emerge from a base section 4 in a curved or curved and helical manner, the base cross section 4 forming a triangle in which the two shorter legs are curved outwards and the long leg is curved inwards, the cross section of the sections 2 decreasing towards the tips, preferably in such a way that the cross sections of the tapered sections 2 decrease linearly or exponentially.

Außerdem betrifft die Erfindung unter anderem einen Gleitschleifkörper 1 mit zwei sich zuspitzenden Abschnitten 2, die einem Basisabschnitt 4 gekrümmt oder gekrümmt und helixförmig entspringen, wobei die Geometrie des Basisquerschnitts 4 gekrümmte Flanken aufweist, wobei der mittlere Basisquerschnitt am größten ist und sich der Querschnitt zu den Spitzen der Abschnitte 2 hin vorzugsweise linear oder exponentiell verkleinert.Furthermore, the invention relates, inter alia, to a vibratory grinding body 1 with two tapering sections 2 which originate from a base section 4 in a curved or curved and helical manner, wherein the geometry of the base cross section 4 has curved flanks, wherein the mean base cross section is the largest and the cross section decreases towards the tips of the sections 2 preferably linearly or exponentially.

Außerdem betrifft die Erfindung unter anderem einen Gleitschleifkörper 1 mit einer Anzahl sich zuspitzender Abschnitte 2, die einem Basisquerschnitt 4 entspringen, wobei der Basisquerschnitt 4 nicht gleichschenkelig ist.Furthermore, the invention relates, inter alia, to a vibratory grinding body 1 with a number of tapered sections 2 which originate from a base cross-section 4, wherein the base cross-section 4 is not isosceles.

Außerdem betrifft die Erfindung insbesondere einen Gleitschleifkörper 1, bei dem die Schenkel 6, 7 des Basisquerschnittes unterschiedlich gewölbt sind.Furthermore, the invention relates in particular to a vibratory grinding body 1 in which the legs 6, 7 of the base cross-section are curved differently.

Außerdem betrifft die Erfindung insbesondere einen Gleitschleifkörper 1, bei dem die gekrümmten und helixförmigen Abschnitte 2 alle die gleiche Schraubrichtung aufweisen.Furthermore, the invention relates in particular to a vibratory grinding body 1 in which the curved and helical sections 2 all have the same screw direction.

Außerdem betrifft die Erfindung insbesondere einen Gleitschleifkörper 1, bei dem die gekrümmten und helixförmigen Abschnitte 2 unterschiedliche Schraubrichtungen aufweisen; mit anderen Worten weisen die Helices vorzugsweise unterschiedliche Schraubrichtungen auf.Furthermore, the invention relates in particular to a vibratory grinding body 1 in which the curved and helical sections 2 have different screw directions; in other words, the helices preferably have different screw directions.

Außerdem betrifft die Erfindung insbesondere einen Gleitschleifkörper 1, bei dem die Abschnitte 2 aus dem Basisquerschnitt 4 symmetrisch entspringen.Furthermore, the invention relates in particular to a vibratory grinding body 1 in which the sections 2 arise symmetrically from the base cross-section 4.

Es sei abschließend klargestellt, dass die Erfindung einen Gleitschleifkörper 1 mit einer Anzahl von Abschnitten 2 betrifft. Anders ausgedrückt betrifft die Erfindung einen Gleitschleifkörper 1 mit einem oder mehreren Abschnitten 2. Insbesondere betrifft die Erfindung also auch solche, nicht in den Figuren dargestellten Ausführungen der oben beschriebenen Gleitschleifkörper, bei denen der Gleitschleifkörper 1 nur einen einzelnen sich zuspitzenden Abschnitt 2 aufweist oder im Wesentlichen aus einem einzelnen solchen Abschnitt besteht. Außerdem betrifft die Erfindung auch solche, nicht in den Figuren dargestellten Ausführungen der oben beschriebenen Gleitschleifkörper, bei denen der Gleitschleifkörper 1 nicht nur einen oder zwei, sondern drei oder mehr sich zuspitzende Abschnitte 2 aufweist, die einem dementsprechenden Basisquerschnitt 4 entspringen.Finally, it should be clarified that the invention relates to a vibratory grinding body 1 with a number of sections 2. In other words, the invention relates to a vibratory grinding body 1 with one or more sections 2. In particular, the invention also relates to those embodiments of the vibratory grinding bodies described above that are not shown in the figures, in which the vibratory grinding body 1 has only a single tapered section 2 or consists essentially of a single such section. In addition, the invention also relates to those embodiments of the vibratory grinding bodies described above that are not shown in the figures, in which the vibratory grinding body 1 does not not only one or two, but three or more tapering sections 2 which originate from a corresponding base cross-section 4.

Alle in der Beschreibung, den nachfolgenden Ansprüchen und den Zeichnungen dargestellten Merkmale können sowohl einzeln als auch in beliebiger Kombination miteinander erfindungswesentlich sein.All features presented in the description, the following claims and the drawings can be essential to the invention both individually and in any combination with one another.

BezugszeichenlisteList of reference symbols

11
Gleitschleifkörper, SchleifkörperVibratory grinding wheels, grinding wheels
22
Abschnitt, Spitze, Zuspitzungsection, tip, point
33
Krümmung, Helixcurvature, helix
44
Mittelquerschnitt, BasisquerschnittMiddle cross section, base cross section
55
Dreiecktriangle
66
kurzer Schenkelshort leg
77
langer Schenkel, konkave Seitelong leg, concave side
88th
KanteEdge
99
Radius, ÜbergangsradiusRadius, transition radius

Claims (8)

  1. A slide grinding body (1) comprising two tapering sections (2) that originate from a base section (4) in a curved manner or in a curved and helical manner, wherein the geometry of the base cross-section (4) has curved flanks, wherein the central base cross-section is the largest and the cross-section decreases toward the tips of the sections (2).
  2. A slide grinding body (1) according to claim 1, characterized in that the cross-sections of the tapered sections (2) decrease linearly or exponentially.
  3. A slide grinding body (1) according to claim 1 or 2, characterized in that the helical curvatures (3) in the region of the base cross-section (4) are rounded with a radius.
  4. A slide grinding body (1) according to any one of the claims 1 to 3, characterized in that the base cross-section (4) is rounded at the corners (8).
  5. A slide grinding body (1) according to any one of the claims 1 to 4, characterized in that the tip section (2) is rounded.
  6. A slide grinding body (1) comprising at least two tapering sections (2) that originate from a base cross-section (4) in a curved manner, or in a curved and helical manner, wherein the base cross-section (4) forms a triangle in which two shorter legs (6) are curved outwardly and one longer leg (7) is curved inwardly, wherein a cross-section of the slide grinding body (1) decreases toward tips of the sections (2).
  7. A slide grinding body (1) comprising at least two tapering sections (2) that originate from a base cross-section (4) in a curved and helical manner, wherein the two tapering sections (2) have different screwing directions.
  8. Use of a slide grinding body according to claim 1, 6 or 7 as a blasting grain, a polishing agent, a drying agent or a cleaning aid.
EP19780147.5A 2018-09-11 2019-09-11 Slide-grinding body Active EP3829814B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018007188.0A DE102018007188B4 (en) 2018-09-11 2018-09-11 Vibratory grinding media
PCT/EP2019/000264 WO2020052797A1 (en) 2018-09-11 2019-09-11 Slide-grinding body

Publications (2)

Publication Number Publication Date
EP3829814A1 EP3829814A1 (en) 2021-06-09
EP3829814B1 true EP3829814B1 (en) 2024-06-19

Family

ID=64279011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780147.5A Active EP3829814B1 (en) 2018-09-11 2019-09-11 Slide-grinding body

Country Status (4)

Country Link
US (1) US20210268623A1 (en)
EP (1) EP3829814B1 (en)
DE (1) DE102018007188B4 (en)
WO (1) WO2020052797A1 (en)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1218158A (en) * 1916-11-07 1917-03-06 American Hardware Corp Polishing-body for burnishing-barrels.
US2947124A (en) 1959-09-08 1960-08-02 Bendix Aviat Corp Process for tumble finishing
GB1232904A (en) * 1968-08-21 1971-05-26
DE2538053B2 (en) 1974-08-29 1980-02-21 Ceratex Engineering Ltd., Colne, Lancashire (Ver. Koenigreich) Abrasives for use in vibratory grinding
DE2735399A1 (en) 1977-08-05 1979-02-15 Butschek Ingeborg Prismatic grinder body for ceramic or plastics materials - has prism height less than half height or diameter of work face
DE3812491A1 (en) * 1988-04-15 1989-10-26 Walther Carl Kurt Gmbh Abrading bodies for the tumbling process
FR2637212A1 (en) * 1988-10-03 1990-04-06 Thonney Michel ABRASIVE PRODUCT FOR THE TREATMENT OF METAL PARTS BY BULK BREWING, AND USE OF THIS PRODUCT
IT1252328B (en) 1991-07-18 1995-06-08 Rollwasch Italiana Spa AGGLOMERATED ABRADENT DEVICE PARTICULARLY FOR TUMBLING AND SIMILAR AS WELL AS REALIZATION PROCEDURE.
DE102006047442B3 (en) 2006-09-20 2008-04-10 Walther Trowal Gmbh & Co. Kg Slip-grinding tool i.e. rotational solid, for workpiece, has base surface provided opposite to round point, and cone section connected to round point with cone angle, where cone section arises from large-diameter socket
BG110329A (en) * 2009-02-19 2009-07-31 "Асарел - Медет" Ад Milling body
EP2938691B1 (en) * 2012-08-02 2022-07-27 Robert Bosch GmbH Abrasive grit with concave section
ES2972193T3 (en) * 2014-04-14 2024-06-11 Saint Gobain Ceramics Abrasive article including shaped abrasive particles
WO2019178290A1 (en) * 2018-03-13 2019-09-19 Saint-Gobain Ceramics & Plastics, Inc. Particulate material and method for forming same

Also Published As

Publication number Publication date
WO2020052797A1 (en) 2020-03-19
DE102018007188A1 (en) 2018-12-06
US20210268623A1 (en) 2021-09-02
DE102018007188B4 (en) 2021-07-08
EP3829814A1 (en) 2021-06-09

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