EP3575034A2 - Support head for abrasive tools - Google Patents
Support head for abrasive tools Download PDFInfo
- Publication number
- EP3575034A2 EP3575034A2 EP19186520.3A EP19186520A EP3575034A2 EP 3575034 A2 EP3575034 A2 EP 3575034A2 EP 19186520 A EP19186520 A EP 19186520A EP 3575034 A2 EP3575034 A2 EP 3575034A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier body
- webs
- web
- shroud
- ring
- 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
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- 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
- B24D5/16—Bushings; Mountings
-
- 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
- B24B45/00—Means for securing grinding wheels on rotary arbors
-
- 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 carrier body for grinding tools with an inner hub ring, which encloses a central bore for connecting the grinding tool to a rotary drive, and an outer shroud for receiving an abrasive, in particular in the form of a galvanic assignment, a slip ring or more abrasive segments, wherein the hub ring and the shroud ring are connected to each other via a plurality of spaced-apart webs, and wherein the webs each have at least one recess.
- the invention further relates to a grinding tool with such a carrier body.
- the EP 2 641 696 A1 discloses a support body, in which the objective is to save as much weight and at the same time form the support body as stable as possible.
- the first goal was the solution according to the EP 2 641 696 A1 successfully implemented.
- the carrier body of the EP 2 641 696 A1 especially with increasing number of revolutions to an undesirable extent.
- the object of the present invention is therefore to provide a comparison with the prior art improved carrier body, which is on the one hand a strong weight reduction and on the other hand has sufficient strength against centrifugal forces and sufficient rigidity against lateral forces. Furthermore, a grinding tool with a thus improved carrier body to be specified.
- Another great advantage is that the dynamic behavior of the carrier body or of a grinding tool comprising the carrier body can be influenced in a targeted manner by the arrangement and the variation of the geometry of the bars and the at least one recess provided therein.
- protection is also desired for a grinding tool with a carrier body according to the invention and an abrasive associated with the shroud, in particular in the form of a galvanic coating, a slip ring or multiple abrasive segments.
- FIG. 1a-1d show a first preferred embodiment of the carrier body 1 according to the invention, wherein FIG. 1a a perspective view, FIG. 1b a top view of a first side surface 28, Figure 1c a plan view of the lateral surface 47 and Figure 1d a plan view of the second side surface 28 of the carrier body 1 contains.
- the carrier body 1 has an inner hub ring 7 which encloses a central bore 8 for connecting the carrier body 1 or a grinding tool constructed by means of the carrier body 1 to a rotary drive.
- the central bore 8 has a radius 44 of 50 mm to 150 mm, preferably 63.5 mm or 101.6 mm, wherein the radius 44 is measured from the center of the central bore 8, through which the axis of rotation 24 of the support body 1 extends to to the inner edge of the hub ring. 7
- the carrier body 1 further comprises an outer shroud 9 for receiving an abrasive, in particular in the form of a galvanic coating, a slip ring or more abrasive segments on.
- the hub ring 7 and the shroud 9 have a distance 43 of 50 mm to 150 mm, preferably 100 mm, to each other. This distance 43 is measured from the outer edge of the hub ring 7 to the inner edge of the shroud.
- the hub ring 7 and the shroud 9 are connected to each other via a plurality of webs 10, more precisely over a total of eleven webs 10, which are arranged at a uniform angular distance 41 relative to each other.
- the webs 10 are spaced from each other. Between the webs 10 recesses 48 are arranged, which are formed in the present case approximately trapezoidal, wherein the corners of the trapezoid are rounded.
- the webs 10 each have an approximately triangular recess 13. Furthermore, the webs 10 have two spaced apart through the recess 13 part webs 18 and 19. These partial webs 18 and 19 have a common contact point 31, which is arranged adjacent to the hub ring 7. Starting from this contact point 31, the partial webs 18 and 19 run apart in opposite directions in the direction of the shroud 9, that is to say the distance between the partial webs 18 and 19 relative to one another increases in the radial direction. In other words, the webs 10 widen towards the casing ring 9 in the plane of the carrier body 1.
- the partial webs 18 and 19 are furthermore of arcuate design and mirror-symmetrical to a plane 25 oriented parallel to the axis of rotation 24 of the carrier body 1.
- a partial web 18 of a web 10 forms with a part web 19 of an adjacent web 10 each have a cut-off pointed arc 26 (in FIG. 1b shown in dashed lines), wherein the tip 27 of the completely executed in mind pointed arch 26 is outside the shroud 9.
- the carrier body 1 has a radius 42 of 200 mm to 300 mm, preferably 250 mm.
- the shroud 9 comprises two outer webs 46, between which the lateral surface 47 is arranged. These two webs 46 may be electrically coated with an abrasive. This results in two active grinding areas, with which two workpieces or two areas of a workpiece can be processed simultaneously.
- FIGS. 2a to 2c A second preferred embodiment of the carrier body 2 according to the invention is in the FIGS. 2a to 2c shown, wherein in the FIG. 2a a perspective view in which FIG. 2b a plan view of one of the side surfaces 28 of the carrier body 2 and in the Figure 2c a plan view of the lateral surface 47 of the carrier body 2 is included.
- the carrier body 2 has an inner hub ring 7, which surrounds a central bore 8 for connecting the carrier body 2 or a grinding tool formed therewith to a rotary drive, and an outer shroud 9 for receiving an abrasive, in particular in the form of a galvanic coating , a slip ring or more abrasive segments.
- an abrasive in particular in the form of a galvanic coating , a slip ring or more abrasive segments.
- On the inner hub ring 7, a protruding in the axial direction of the mounting ring 45 is arranged, wherein this fastening ring 45 is formed on one side 28 of the carrier body 2.
- the hub ring 7 and the shroud 9 are connected to each other via a plurality, more precisely twelve webs 11, wherein the webs 11 are spaced from each other by recesses 49.
- the recesses 49 have approximately the shape of rectangles.
- the webs 11 each have two recesses 14 and 15, which are arranged offset from one another in the radial direction.
- the recesses 14 have the shape of a slot.
- the recesses 15 have a substantially circular cross-section.
- the recesses 15 serve at the same time as fastening means, via which the side surfaces 28 of the carrier body 2 can be provided with covers.
- the covers may extend from the mounting ring 45 to the inner edge of the shroud 9.
- the webs 11 further have two through the recesses 14 and 15 spaced apart webs 20 and 21.
- the partial webs 20 and 21 are connected to each other via two contact points 31.
- the partial webs 20 and 21 are arc-shaped and mirror-symmetrical to a parallel to the axis of rotation 24 of the support body 2 aligned plane 25th
- a partial web 20 of a web 11 with a partial web 21 of an adjacent web 11 each form a truncated pointed arch 26 (see FIG. 2b ), wherein the tip 27 of the fully executed in mind pointed arch 26 is outside the shroud 9.
- pointed arches and parabolic arches can be used.
- the carrier body 2 on the lateral surface 47 a plurality of grooves.
- a limiting projection 46 is provided only on one side of the lateral surface 47.
- FIG. 3 shows a third preferred embodiment of a carrier body 3 according to the invention in a plan view of a substantially normal to the axis of rotation aligned side surface of the carrier body.
- the carrier body 2 comprises an inner hub ring 7, which encloses a central bore 8 for connecting the carrier body 2 or a grinding tool formed therewith to a rotary drive, and an outer shroud 9 for receiving an abrasive, in particular in shape a galvanic assignment, a slip ring or multiple abrasive segments.
- the hub ring 7 and the shroud 9 are connected to each other via a plurality of webs 12.
- the webs 12 are spaced from each other by recesses 50.
- the recesses 50 as well as the recesses 49 and 48 in the embodiments described above represent openings which extend over the entire thickness of the carrier body 1, 2 and 3. In other words, one can see through the carrier bodies 1, 2 and 3 at least in the region of the recesses 48, 49 and 50.
- the webs 12 each have two recesses 16 and 17, which are spaced apart in the radial direction, and substantially triangular are formed, wherein the triangles are each facing a tip.
- the webs 12 further comprise two spaced apart from the recesses 16 and 17 part webs 22 and 23, which in turn are arc-shaped and mirror-symmetrical to a parallel to the axis of rotation of the support body 3 aligned plane 25 are formed.
- the partial webs 22 and 23 intersect in this exemplary embodiment and form a contact point 31 at the point of intersection.
- the sheets 26 may also be parabolic.
- fastening means 32 are provided, via which the outer side surfaces 28 of the carrier body 3 can be provided with covers. If necessary, the fastening means 32 can also be provided at shorter intervals, that is to say for example at every second web.
- the carrier body 3 shown as well as the other carrier bodies 1, 2, 4, 5 and 6 shown in the figures are substantially rotationally symmetrical and are made of a metal.
- FIGS. 4 . 5a and 5b and 6 illustrated preferred embodiments 4, 5 and 6 have, as regards the intended between the hub ring 7 and the shroud 9 webs 12, substantially the same structure as the third embodiment according to FIG. 3 on.
- the fourth preferred embodiment according to FIG. 4 In contrast to the third preferred embodiment according to FIG. 3 is the fourth preferred embodiment according to FIG. 4 However, divided into two parts, wherein the webs 12 are machined starting from a center plane 33 in the axial direction, but without breaking the discs in their entirety. This leaves on the outer side surfaces in each case a material thickness, which serves as termination or cover 29.
- the covers 29 are thus integrally connected to the webs 12 and the hub ring 7 and the shroud 9.
- the covers 29 but could also be connected via fastening means with the webs 12 and / or the hub ring 7 and / or the shroud 9.
- the mirror-symmetrical to the median plane 33 formed halves 34 and 35 of the support body 4 are detachably connected to each other at the median plane 33.
- the fastening means 32 can be used.
- FIGS. 5a and 5b in which FIG. 5a a perspective view and FIG. 5b a sectional view along in the FIG. 5a Dashed line shown cutting plane, in the center plane 33 of the support body 5, a membrane 40 is arranged, which divides the carrier body 5 into two halves 36 and 37 distinguishable from each other. This membrane 40 prevents a flow of material between the side surfaces of the carrier body 5.
- the recesses 16, 17 and 50 do not extend in this case over the total thickness of the carrier body fifth
- the sixth preferred embodiment it is a variant of the fifth preferred embodiment, wherein in the center plane 33 in turn a membrane 40 is arranged.
- the halves 38 and 39 of the support body 6 are formed identically and by a certain, in this case, half, angular distance 41 of two adjacent webs 12 are arranged twisted to each other.
- FIGS. 7a to 7c a seventh preferred embodiment of a carrier body 30 is shown, wherein Figure 7a a perspective view, FIG. 7b a plan view of a substantially normal to the axis of rotation 24 aligned side surface 28 of the carrier body 30, and FIG. 7c a plan view of the lateral surface 47 of the carrier body 30 shows.
- the carrier body 30 in turn has an inner hub ring 7 which surrounds a central bore 8 for connecting the carrier body 30 or a grinding tool comprising the carrier body 30 to a rotary drive, and an outer shroud 9 for receiving an abrasive, in particular in the form of a galvanic coating Slip ring or more abrasive segments, on.
- the hub ring 7 and the shroud 9 are connected to each other via a plurality of webs 51, wherein the webs 51 each have a recess 52.
- the webs 51 are spaced from each other via passage openings 57. In total, thirteen webs 51 are provided.
- the webs 51 each have two through the recess 52 spaced apart webs 53 and 54, wherein the sub-webs 53 and 54 are arcuate, and mirror-symmetrical to a parallel to the axis of rotation 24 of the support body 30 aligned plane 25th
- a partial web 53 of a web 51 with a partial web 54 of an adjacent web 51 each form a sheet 55, the tips 56 of the sheets 55 touching the casing ring 9.
- the sheets 55 are parabolic. You could alternatively be designed as pointed arches.
- the angular distance 41 of two adjacent webs 51, the radius 42 of the carrier body 30, the radius 44 of the central bore 8 and the distance 43 of the hub ring 7 to the shroud 9 may have the dimensions specified in connection with the other embodiments.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Trägerkörper (1, 2, 3, 4, 5, 6, 30) für Schleifwerkzeuge mit einem inneren Nabenring (7), welcher eine Mittelbohrung (8) zur Anbindung des Schleifwerkzeugs an einen Drehantrieb umschließt, und einem äußeren Mantelring (9) zur Aufnahme eines Schleifmittels, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente, wobei der Nabenring (7) und der Mantelring (9) über mehrere voneinander beabstandete Stege (10, 11, 12, 51) miteinander verbunden sind, wobei die Stege (10, 11, 12, 51) jeweils wenigstens eine Ausnehmung (13, 14, 15, 16, 17, 52) aufweisen, die Stege (10, 11, 12, 51) wenigstens zwei durch die wenigstens eine Ausnehmung (13, 14, 15, 16, 17, 52) voneinander beabstandete Teilstege (18, 19, 20, 21, 22, 23, 53, 54) aufweisen, und wobei- ein Teilsteg (18, 19, 20, 21, 22, 23) eines Stegs (10, 11, 12) mit einem Teilsteg (18, 19, 20, 21, 22, 23) eines benachbarten Stegs (10, 11, 12) jeweils einen abgeschnittenen Bogen (26) ausbilden, wobei die Spitzen (27) der in Gedanken vollständig ausgeführten Bögen (26) außerhalb des Mantelrings (9) liegen, oder- ein Teilsteg (53, 54) eines Stegs (51) mit einem Teilsteg (53, 54) eines benachbarten Stegs (51) jeweils einen Bogen (55) ausbilden, wobei die Spitzen (56) der Bögen (55) den Mantelring (9) berühren.Carrier body (1, 2, 3, 4, 5, 6, 30) for grinding tools with an inner hub ring (7), which surrounds a central hole (8) for connecting the grinding tool to a rotary drive, and an outer casing ring (9) for receiving of an abrasive, in particular in the form of a galvanic coating, a slip ring or a plurality of grinding segments, the hub ring (7) and the casing ring (9) being connected to one another via a plurality of spaced apart webs (10, 11, 12, 51), the webs ( 10, 11, 12, 51) each have at least one recess (13, 14, 15, 16, 17, 52), the webs (10, 11, 12, 51) have at least two through the at least one recess (13, 14, 15, 16, 17, 52) have spaced-apart partial webs (18, 19, 20, 21, 22, 23, 53, 54), and wherein - a partial web (18, 19, 20, 21, 22, 23) of a web (10, 11, 12) with a partial web (18, 19, 20, 21, 22, 23) of an adjacent web (10, 11, 12) each form a cut-off arch (26) i the tips (27) of the arches (26), which are completely executed in thought, lie outside the casing ring (9), or - a partial web (53, 54) of a web (51) with a partial web (53, 54) of an adjacent web (51 ) each form an arc (55), the tips (56) of the arcs (55) touching the casing ring (9).
Description
Die Erfindung betrifft einen Trägerkörper für Schleifwerkzeuge mit einem inneren Nabenring, welcher einer Mittelbohrung zur Anbindung des Schleifwerkzeugs an einen Drehantrieb umschließt, und einem äußeren Mantelring zur Aufnahme eines Schleifmittels, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente, wobei der Nabenring und der Mantelring über mehrere voneinander beabstandete Stege miteinander verbunden sind, und wobei die Stege jeweils wenigstens eine Ausnehmung aufweisen. Die Erfindung betrifft weiterhin ein Schleifwerkzeug mit einem solchen Trägerkörper.The invention relates to a carrier body for grinding tools with an inner hub ring, which encloses a central bore for connecting the grinding tool to a rotary drive, and an outer shroud for receiving an abrasive, in particular in the form of a galvanic assignment, a slip ring or more abrasive segments, wherein the hub ring and the shroud ring are connected to each other via a plurality of spaced-apart webs, and wherein the webs each have at least one recess. The invention further relates to a grinding tool with such a carrier body.
Die
Die Aufgabe der vorliegenden Erfindung besteht also darin, einen gegenüber dem Stand der Technik verbesserten Trägerkörper anzugeben, der zum einen stark gewichtsreduziert ist und zum anderen eine ausreichende Festigkeit gegenüber Fliehkräften und eine ausreichende Steifigkeit gegenüber Seitenkräften aufweist. Weiterhin soll ein Schleifwerkzeug mit einem solchermaßen verbesserten Trägerkörper angegeben werden.The object of the present invention is therefore to provide a comparison with the prior art improved carrier body, which is on the one hand a strong weight reduction and on the other hand has sufficient strength against centrifugal forces and sufficient rigidity against lateral forces. Furthermore, a grinding tool with a thus improved carrier body to be specified.
Diese Aufgabe wird gelöst durch die Merkmale der unabhängigen Ansprüche 1 und 11.This object is solved by the features of
Durch das Vorsehen jeweils wenigstens einer Ausnehmung in den Stegen ist es möglich, mit den Stegen einen größeren Raumbereich abzudecken, ohne dass dabei das Gewicht des Trägerkörpers erhöht wird. Durch die Abdeckung eines größeren Raumbereichs kann die Festigkeit gegenüber Fliehkräften und die Steifigkeit gegenüber Seitenkräften signifikant verbessert und beeinflusst werden.By providing in each case at least one recess in the webs, it is possible to cover a larger spatial area with the webs, without thereby increasing the weight of the carrier body. By covering a larger area of space, the strength against centrifugal forces and the rigidity against lateral forces can be significantly improved and influenced.
Ein weiterer großer Vorteil besteht darin, dass das dynamische Verhalten des Trägerkörpers bzw. eines den Trägerkörper umfassenden Schleifwerkzeugs durch die Anordnung und die Variation der Geometrie der Stege und der darin vorgesehenen wenigstens einen Ausnehmung gezielt beeinflusst werden kann.Another great advantage is that the dynamic behavior of the carrier body or of a grinding tool comprising the carrier body can be influenced in a targeted manner by the arrangement and the variation of the geometry of the bars and the at least one recess provided therein.
Noch weiter erhöhen lassen sich die Steifigkeit und die Festigkeit durch die in den Ansprüchen 2-4 definierten vorteilhaften Maßnahmen.The stiffness and the strength can be further increased by the advantageous measures defined in claims 2-4.
Weitere bevorzugte Ausführungsformen des erfindungsgemäßen Trägerkörpers sind in den Ansprüchen 5-10 definiert.Further preferred embodiments of the carrier body according to the invention are defined in claims 5-10.
Wie eingangs ausgeführt, wird Schutz auch begehrt für ein Schleifwerkzeug mit einem erfindungsgemäßen Trägerkörper und ein mit dem Mantelring verbundenen Schleifmittel, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente.As mentioned above, protection is also desired for a grinding tool with a carrier body according to the invention and an abrasive associated with the shroud, in particular in the form of a galvanic coating, a slip ring or multiple abrasive segments.
Weitere Einzelheiten und Vorteile der vorliegenden Erfindungen werden anhand der Figurenbeschreibung unter Bezugnahme auf die Zeichnungen im Folgenden näher erläutert.Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the drawings.
Darin zeigen:
- Fig. 1a-1d
- ein erstes bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers,
- Fig.2a-2c
- ein zweites bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers,
- Fig. 3
- ein drittes bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers,
- Fig. 4
- ein viertes bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers,
- Fig. 5a, 5b
- ein fünftes bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers,
- Fig. 6
- ein sechstes bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers, und
- Fig. 7a-7c
- ein siebtes bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers.
- Fig. 1a-1d
- A first preferred embodiment of the carrier body according to the invention,
- 2a-2c
- A second preferred embodiment of the carrier body according to the invention,
- Fig. 3
- A third preferred embodiment of the carrier body according to the invention,
- Fig. 4
- A fourth preferred embodiment of the carrier body according to the invention,
- Fig. 5a, 5b
- A fifth preferred embodiment of the carrier body according to the invention,
- Fig. 6
- a sixth preferred embodiment of the carrier body according to the invention, and
- Fig. 7a-7c
- a seventh preferred embodiment of the carrier body according to the invention.
Die
Der Trägerkörper 1 weist einen inneren Nabenring 7, welcher eine Mittelbohrung 8 zur Anbindung des Trägerkörpers 1 bzw. eines mittels des Trägerkörpers 1 aufgebauten Schleifwerkzeugs an einen Drehantrieb umschließt, auf.The
Die Mittelbohrung 8 weist einen Radius 44 von 50 mm bis 150 mm, vorzugsweise 63,5 mm oder 101,6 mm auf, wobei der Radius 44 gemessen wird von dem Mittelpunkt der Mittelbohrung 8, durch welchen die Rotationsachse 24 des Trägerkörpers 1 verläuft, bis an den inneren Rand des Nabenrings 7.The
Der Trägerkörper 1 weist weiterhin einen äußeren Mantelring 9 zur Aufnahme eines Schleifmittels, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente, auf. Der Nabenring 7 und der Mantelring 9 weisen einen Abstand 43 von 50 mm bis 150 mm, vorzugsweise 100 mm, zueinander auf. Dieser Abstand 43 wird gemessen von dem äußeren Rand des Nabenrings 7 bis zum inneren Rand des Mantelrings 9.The
Der Nabenring 7 und der Mantelring 9 sind über mehrere Stege 10 miteinander verbunden, genauer gesagt über insgesamt elf Stege 10, die in einem gleichmäßigen Winkelabstand 41 relativ zueinander angeordnet sind. Die Stege 10 sind voneinander beabstandet. Zwischen den Stegen 10 sind Ausnehmungen 48 angeordnet, die im vorliegenden Fall in etwa trapezförmig ausgebildet sind, wobei die Ecken des Trapezes abgerundet sind.The
Das Vorsehen einer Anzahl an Stegen, wobei die Anzahl einer Primzahl und/oder einer ungeraden Zahl entspricht, ist besonders vorteilhaft, da der Trägerkörper hierdurch besonders wenige Schwingungen aufbaut.The provision of a number of webs, wherein the number corresponds to a prime number and / or an odd number, is particularly advantageous since the carrier body thereby builds up particularly few oscillations.
Die Stege 10 weisen jeweils eine in etwa dreieckige Ausnehmung 13 auf. Weiterhin weisen die Stege 10 zwei durch die Ausnehmung 13 voneinander beabstandete Teilstege 18 und 19 auf. Diese Teilstege 18 und 19 weisen eine gemeinsame Kontaktstelle 31 auf, welche benachbart zum Nabenring 7 angeordnet ist. Ausgehend von dieser Kontaktstelle 31 laufen die Teilstege 18 und 19 in Richtung des Mantelrings 9 in entgegengesetzte Richtungen auseinander, das heißt der Abstand der Teilstege 18 und 19 zueinander wird in radialer Richtung größer. Mit anderen Worten verbreitern sich die Stege 10 zum Mantelring 9 hin in der Ebene des Trägerkörpers 1.The
Die Teilstege 18 und 19 sind weiterhin bogenförmig ausgebildet und spiegelsymmetrisch zu einer parallel zur Rotationsachse 24 des Trägerkörpers 1 ausgerichteten Ebene 25.The
Ein Teilsteg 18 eines Stegs 10 bildet mit einem Teilsteg 19 eines benachbarten Stegs 10 jeweils einen abgeschnittenen Spitzbogen 26 aus (in
Anstelle von Spitzbögen können auch parabelförmige Bögen zum Einsatz kommen.Instead of pointed arches and parabolic arches can be used.
Der Trägerkörper 1 weist einen Radius 42 von 200 mm bis 300 mm, vorzugsweise 250 mm, auf.The
Der Mantelring 9 umfasst zwei äußere Stege 46, zwischen denen die Mantelfläche 47 angeordnet ist. Diese beiden Stege 46 können galvanisch mit einem Schleifmittel belegt sein. Dadurch ergeben sich zwei aktive Schleifbereiche, mit denen gleichzeitig zwei Werkstücke oder zwei Bereiche eines Werkstücks bearbeitet werden können.The
Ein zweites bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Trägerkörpers 2 ist in den
Wie auch beim ersten Ausführungsbeispiel weist der Trägerkörper 2 einen inneren Nabenring 7, welcher ein Mittelbohrung 8 zur Anbindung des Trägerkörpers 2 bzw. eines damit ausgebildeten Schleifwerkzeugs an einen Drehantrieb umschließt, und einen äußeren Mantelring 9 zur Aufnahme eines Schleifmittels, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente, auf. Am inneren Nabenring 7 ist ein in axialer Richtung vorstehender Befestigungsring 45 angeordnet, wobei dieser Befestigungsring 45 an einer Seite 28 des Trägerkörpers 2 ausgebildet ist.As in the first embodiment, the
Der Nabenring 7 und der Mantelring 9 sind über mehrere, genauer gesagt zwölf Stege 11, miteinander verbunden, wobei die Stege 11 durch Ausnehmungen 49 voneinander beabstandet sind. Die Ausnehmungen 49 haben dabei in etwa die Form von Rechtecken.The
Die Stege 11 weisen jeweils zwei Ausnehmungen 14 und 15 auf, die in radialer Richtung versetzt zueinander angeordnet sind. Die Ausnehmungen 14 weisen die Form eines Langlochs auf. Die Ausnehmungen 15 weisen einen im Wesentlichen kreisförmigen Querschnitt auf. Die Ausnehmungen 15 dienen gleichzeitig als Befestigungsmittel, über welche die Seitenflächen 28 des Trägerkörpers 2 mit Abdeckungen versehen werden können.The
Die Abdeckungen können sich dabei von dem Befestigungsring 45 bis zum inneren Rand des Mantelrings 9 erstrecken.The covers may extend from the mounting
Die Stege 11 weisen weiterhin zwei durch die Ausnehmungen 14 und 15 voneinander beabstandete Teilstege 20 und 21 auf. Die Teilstege 20 und 21 sind über zwei Kontaktstellen 31 miteinander verbunden.The
Die Stege 11 verbreitern sich zum Mantelring 9 und zum Nabenring 7 hin in der Ebene des Trägerkörpers 2.The
Die Teilstege 20 und 21 sind bogenförmig ausgebildet und spiegelsymmetrisch zu einer parallel zur Rotationsachse 24 des Trägerkörpers 2 ausgerichteten Ebene 25.The
Weiterhin bilden ein Teilsteg 20 eines Stegs 11 mit einem Teilsteg 21 eines benachbarten Stegs 11 jeweils einen abgeschnittenen Spitzbogen 26 aus (vergleiche
Im Vergleich zum ersten bevorzugten Ausführungsbeispiel (vergleiche
Wie auch bei den beiden zuvor beschriebenen Ausführungsbeispielen umfasst der Trägerkörper 2 einen inneren Nabenring 7, welcher eine Mittelbohrung 8 zur Anbindung des Trägerkörpers 2 bzw. eines damit ausgebildeten Schleifwerkzeugs an einen Drehantrieb umschließt, und einen äußeren Mantelring 9 zur Aufnahme eines Schleifmittels, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente. Der Nabenring 7 und der Mantelring 9 sind über mehrere Stege 12 miteinander verbunden. Die Stege 12 sind durch Ausnehmungen 50 voneinander beabstandet. Die Ausnehmungen 50 stellen wie auch die Ausnehmungen 49 und 48 bei den zuvor beschriebenen Ausführungsbeispielen Durchbrüche dar, welche sich über die gesamte Dicke der Trägerkörper 1, 2 und 3 erstrecken. Mit anderen Worten kann man durch die Trägerkörper 1, 2 und 3 zumindest im Bereich der Ausnehmungen 48, 49 und 50 hindurch blicken.As with the two embodiments described above, the
Die Stege 12 weisen jeweils zwei Ausnehmungen 16 und 17 auf, die in radialer Richtung voneinander beabstandet sind, und im Wesentlichen dreieckig ausgebildet sind, wobei die Dreiecke mit jeweils einer Spitze einander zugewandt sind.The
Die Stege 12 weisen weiterhin zwei durch die Ausnehmungen 16 und 17 voneinander beabstandete Teilstege 22 und 23 auf, welche wiederum bogenförmig und spiegelsymmetrisch zu einer parallel zur Rotationsachse des Trägerkörpers 3 ausgerichteten Ebene 25 ausgebildet sind.The
Die Teilstege 22 und 23 überkreuzen sich bei diesem Ausführungsbeispiel und bilden im Kreuzungspunkt eine Kontaktstelle 31 aus.The
Wie auch bei den beiden übrigen Ausführungsbeispielen bilden ein Teilsteg 22 eines Stegs 12 mit einem Teilsteg 23 eines benachbarten Stegs 12 jeweils einen abgeschnittenen Spitzbogen 26 aus, wobei die Spitzen 27 der in Gedanken vollständig ausgeführten Spitzbögen 26 außerhalb des Mantelrings 9 liegen. Alternativ können die Bögen 26 auch parabelförmig ausgebildet sein.As with the other two embodiments form a
Es sind insgesamt fünfzehn Stege 12 vorgesehen, welche in gleichmäßigen Winkelabständen 41 zwischen dem inneren Narbenring 7 und dem äußeren Mantelring 9 angeordnet sind.There are a total of fifteen
An jedem vierten Steg 12 sind Befestigungsmittel 32 vorgesehen, über welche die äußeren Seitenflächen 28 des Trägerkörpers 3 mit Abdeckungen versehen werden können. Im Bedarfsfall können die Befestigungsmittel 32 auch in geringeren Abständen, also beispielsweise an jedem zweiten Steg, vorgesehen werden.On each
Grundsätzlich ist noch festzuhalten, dass der dargestellte Trägerkörper 3 wie auch die übrigen in den Figuren dargestellten Trägerkörper 1, 2, 4, 5 und 6 im Wesentlichen rotationssymmetrisch ausgebildet sind und aus einem Metall gefertigt sind.Basically, it should be noted that the
Die in den
Im Unterschied zum dritten bevorzugten Ausführungsbeispiel gemäß
Die spiegelsymmetrisch zur Mittelebene 33 ausgebildeten Hälften 34 und 35 des Trägerkörpers 4 sind an der Mittelebene 33 lösbar miteinander verbunden. Hierzu können die Befestigungsmittel 32 herangezogen werden.The mirror-symmetrical to the
Beim fünften bevorzugten Ausführungsbeispiel gemäß den
Bei dem sechsten bevorzugten Ausführungsbeispiel gemäß
In den
Der Trägerkörper 30 weist wiederum einen inneren Nabenring 7, welcher eine Mittelbohrung 8 zur Anbindung des Trägerkörpers 30 bzw. eines den Trägerkörper 30 umfassenden Schleifwerkzeugs an einen Drehantrieb umschließt, und einen äußeren Mantelring 9 zur Aufnahme eines Schleifmittels, insbesondere in Form einer galvanischen Belegung, eines Schleifrings oder mehrerer Schleifsegmente, auf. Der Nabenring 7 und der Mantelring 9 sind über mehrere Stege 51 miteinander verbunden, wobei die Stege 51 jeweils eine Ausnehmung 52 aufweisen. Die Stege 51 sind über Durchgangsöffnungen 57 voneinander beabstandet. Insgesamt sind dreizehn Stege 51 vorgesehen.The
Die Stege 51 weisen jeweils zwei durch die Ausnehmung 52 voneinander beabstandete Teilstege 53 und 54 auf, wobei die Teilstege 53 und 54 bogenförmig ausgebildet sind, und spiegelsymmetrisch zu einer parallel zur Rotationsachse 24 des Trägerkörpers 30 ausgerichteten Ebene 25.The
Weiterhin bildet ein Teilsteg 53 eines Stegs 51 mit einem Teilsteg 54 eines benachbarten Stegs 51 jeweils einen Bogen 55 aus, wobei die Spitzen 56 der Bögen 55 den Mantelring 9 berühren. Die Bögen 55 sind parabelförmig ausgebildet. Sie könnten alternativ auch als Spitzbögen ausgeführt sein.Furthermore, a
Der Winkelabstand 41 zweier benachbarter Stege 51, der Radius 42 des Trägerkörpers 30, der Radius 44 der Mittelbohrung 8 und der Abstand 43 des Nabenrings 7 zum Mantelring 9 können die in Zusammenhang mit den übrigen Ausführungsbeispielen spezifizierten Maße aufweisen.The
Claims (11)
Priority Applications (1)
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PL19186520T PL3575034T3 (en) | 2016-08-11 | 2017-08-02 | Support head for abrasive tools |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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ATA50731/2016A AT518908B1 (en) | 2016-08-11 | 2016-08-11 | Carrier body for grinding tools |
EP17757669.1A EP3496898B1 (en) | 2016-08-11 | 2017-08-02 | Carrier body for grinding tools |
PCT/AT2017/060197 WO2018027250A1 (en) | 2016-08-11 | 2017-08-02 | Carrier body for grinding tools |
Related Parent Applications (2)
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EP17757669.1A Division EP3496898B1 (en) | 2016-08-11 | 2017-08-02 | Carrier body for grinding tools |
EP17757669.1A Division-Into EP3496898B1 (en) | 2016-08-11 | 2017-08-02 | Carrier body for grinding tools |
Publications (3)
Publication Number | Publication Date |
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EP3575034A2 true EP3575034A2 (en) | 2019-12-04 |
EP3575034A3 EP3575034A3 (en) | 2020-04-01 |
EP3575034B1 EP3575034B1 (en) | 2020-10-21 |
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EP17757669.1A Active EP3496898B1 (en) | 2016-08-11 | 2017-08-02 | Carrier body for grinding tools |
EP19186520.3A Active EP3575034B1 (en) | 2016-08-11 | 2017-08-02 | Support head for abrasive tools |
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EP17757669.1A Active EP3496898B1 (en) | 2016-08-11 | 2017-08-02 | Carrier body for grinding tools |
Country Status (8)
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US (1) | US20190168360A1 (en) |
EP (2) | EP3496898B1 (en) |
CN (1) | CN109689296A (en) |
AT (1) | AT518908B1 (en) |
ES (2) | ES2843795T3 (en) |
MX (1) | MX2019001650A (en) |
PL (2) | PL3575034T3 (en) |
WO (1) | WO2018027250A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102022113308A1 (en) | 2022-05-25 | 2023-11-30 | Lightway GmbH | Grinding wheel holder |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3670076A1 (en) * | 2018-12-20 | 2020-06-24 | 3M Innovative Properties Company | Attachment hub, backup pad, and abrasive disc |
CN118372147A (en) * | 2024-05-23 | 2024-07-23 | 广州旭璟先进材料科技有限公司 | Automatic grinding machine for special-shaped workpieces |
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EP2641696A1 (en) | 2012-03-13 | 2013-09-25 | Dr. Müller Diamantmetall AG | Tool for processing materials |
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-
2016
- 2016-08-11 AT ATA50731/2016A patent/AT518908B1/en active
-
2017
- 2017-08-02 EP EP17757669.1A patent/EP3496898B1/en active Active
- 2017-08-02 WO PCT/AT2017/060197 patent/WO2018027250A1/en unknown
- 2017-08-02 CN CN201780053644.9A patent/CN109689296A/en active Pending
- 2017-08-02 PL PL19186520T patent/PL3575034T3/en unknown
- 2017-08-02 ES ES19186520T patent/ES2843795T3/en active Active
- 2017-08-02 ES ES17757669T patent/ES2767724T3/en active Active
- 2017-08-02 PL PL17757669T patent/PL3496898T3/en unknown
- 2017-08-02 EP EP19186520.3A patent/EP3575034B1/en active Active
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Patent Citations (1)
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EP2641696A1 (en) | 2012-03-13 | 2013-09-25 | Dr. Müller Diamantmetall AG | Tool for processing materials |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102022113308A1 (en) | 2022-05-25 | 2023-11-30 | Lightway GmbH | Grinding wheel holder |
DE102022113308B4 (en) | 2022-05-25 | 2024-06-27 | Lightway GmbH | Grinding wheel holder |
Also Published As
Publication number | Publication date |
---|---|
ES2843795T3 (en) | 2021-07-20 |
EP3575034B1 (en) | 2020-10-21 |
PL3496898T3 (en) | 2020-05-18 |
US20190168360A1 (en) | 2019-06-06 |
CN109689296A (en) | 2019-04-26 |
BR112019002465A2 (en) | 2019-05-14 |
EP3496898B1 (en) | 2019-10-16 |
WO2018027250A1 (en) | 2018-02-15 |
MX2019001650A (en) | 2019-06-10 |
AT518908B1 (en) | 2019-04-15 |
AT518908A1 (en) | 2018-02-15 |
EP3496898A1 (en) | 2019-06-19 |
EP3575034A3 (en) | 2020-04-01 |
ES2767724T3 (en) | 2020-06-18 |
PL3575034T3 (en) | 2021-05-31 |
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