DE102017126919A1 - deburring - Google Patents

Abstract

A deburring tool (10) is proposed for deburring at least one edge (38, 40) on a workpiece (30), wherein the deburring tool (10) has a rotatable, at least substantially cylindrical base body (12) and at least one abrasive agent (50). characterized in that the base body (12) at least at each of its two end faces (14, 16) each carries a rotary body (18, 20) whose radius (R) is at least partially larger than the radius (r) of the Base body (12) and wherein the rotary bodies (18, 20) on their facing surfaces (26) abrasive means (50).
Also proposed is a method using the deburring tool (10) according to the invention.

Description

The invention relates to a deburring tool for deburring at least one edge on a workpiece.

Furthermore, the invention relates to a method for deburring with a relevant deburring tool.

STATE OF THE ART

From the DE 10 2006 036 839 A1 is a deburring tool, namely a deburring brush, known which is rotatable about its axis with its annular cylindrical body and which is coated with abrasive agents containing, for example, silicon carbide or diamond. This deburring tool is used for deburring edges of engine blades.

There is the problem that depending on the distance and the accessibility of the edge to be deburred always another deburring brush must be chosen with a suitable diameter. Also, another, new deburring brush must be used when the abrasive agents are used up so far that only a poor deburring effect is achieved.

The object of the invention is therefore to propose a deburring tool that can be used in many ways and that can work effectively for a long time.

This object is achieved by a deburring tool according to the independent claims. Advantageous developments of the invention are the subject of the dependent claims.

DISCLOSURE OF THE INVENTION

The invention relates to a deburring tool for deburring at least one edge on a workpiece, wherein the deburring tool has a rotatable, at least substantially cylindrical base body which carries at least on each of its two end faces a respective rotational body whose radius is at least partially larger than the radius of the Base body and wherein the rotary bodies have abrasive agents on their surfaces facing each other.

In other words, the invention relates to a deburring tool, which not only provides a single surface with an abrasive agent, but several such surfaces, so that at least one edge to be deburred can be processed from two sides simultaneously. Edge processing is thus particularly effective.

It goes without saying that the deburring tool is rotationally symmetrical and has at least on one side of the axis of rotation a tool shank which is designed to be received in a hand-held or stationary machine tool. By means of the tool shaft, the deburring tool can be driven to produce the rotary working movement.

In a further embodiment of the invention, it is proposed to form the rotary body preferably as a truncated cone, whose lateral surface carries the abrasive agent. Such a rotary body can be easily manufactured by conventional means. However, the rotation body can also be designed as a circular or polygonal disk, as a torus, as a prism or as a pyramid. The proposed design of the rotating body as a truncated cone, however, has the advantage, inter alia, that the deburring tool with the obliquely tapering truncated cone lateral surface offers an insertion aid for a longitudinal web to be deburred or the like.

The rotary bodies can all be shaped identically, but combinations of differently shaped rotary bodies are also possible.

A replacement of individual rotation body can be done easily if the rotation body is not firmly connected to the body, but is detachably mounted by this.

A particularly secure hold of the rotating body on the body is ensured if these two components are permanently connected to each other. Then even a one-piece production of a main body, which carries a plurality of bodies of revolution, possible.

If the rotational bodies are at least approximately equal, similar edges can be deburred simultaneously; with different sized bodies of revolution, non-uniform edges can be processed simultaneously.

With differently sized rotating bodies even special effects can be achieved during deburring.

In a further embodiment of the invention, it is proposed to design the base body as a spacer ring / spacer cylinder. This has the advantage over other conceivable geometries, such as prisms, that it uses simple tool shapes can be prepared or rings and cylinders are commercially available cheaper prisms.

In one embodiment of the invention, it is proposed to make the basic body adjustable in length, in particular telescopically adjustable in length. Then edges of different thicknesses can be easily processed with the same deburring tool, after the base body has been adjusted to a length that is matched to the respective distance of the rotary body.

As a preferred structural design for this it is proposed to make the length-adjustable base body as two telescoping sleeves.

As materials for the base body and / or for the rotary body plastics, in particular injection-moldable plastics, are proposed.

A particularly effective deburring can be achieved with flexible filaments, which are connected at their first end to the rotary body. The flexible element can itself be the abrasive agent; in another variant, it may carry only one or more, even different, abrasive agents. It is essential in this connection only that the filaments can be moved by rotation from a position of the rest position into an operating state in which the abrasive agents act.

In a particularly preferred embodiment of the invention, the filament is at rest with its second, free end on the associated surface of the rotating body and is in the operating state of this area. This means that the filament is spared at rest. Only at the beginning of the rotational movement, the filament is directed and unfolds its effect.

The abutment of the free end of the filament can be effected by gravity. This concern can be achieved in a particularly simple manner if the filament does not consist of a completely straight running material, but of a helically wound material or of a crimped material.

Individual filaments can also be twisted against each other, resulting in a structured filament surface. This can increase the abrasive effect.

The filament should preferably have a cross-sectional size that is substantially smaller than the free length of the filament. Then the filament can easily straighten up during a rotation of the deburring tool by a machine tool and it is ensured that a contact between the filament surface and the surface to be deburred can take place. The entire surface of the filament is then available for achieving a material removal; the angle of attack is influenced by the rotational speed of the tool. The machining takes place via the abrasive effect by a friction between the filament surface and the workpiece surface, which is generated by a rotation of the deburring tool.

By a plurality of existing filaments, the abrasive action of the deburring tool can be increased and the processing time can be reduced during a rotational movement of the deburring tool and the contact of the individual filaments with the surface to be deburred.

About the free length of the filament and the rotational speed of the processing angle, d. H. the angle of the deburred area can be influenced. For even deburring, the use of filaments of the same length is recommended. Unequal length filaments may be used if special effects (e.g., deburring with certain pattern points or lines on the workpiece) are to be achieved.

The filaments preferably have a round cross-section.

The filaments can be used as a bundle of individual filaments, i. H. as a multifilament, or as a single filament, d. H. as a single filament, be formed.

In a preferred embodiment, the filament may be at least partially formed as a plastic fiber, glass fiber, metal fiber, ceramic fiber and / or carbon fiber. The filament can be made entirely from a single material, or consist of sections of different material properties. The sections may be subdivided both with respect to the length of the filaments and with respect to the cross section of the filament. The outermost surface of the filament may be made of a particularly abrasive material, and the inner portion of the filament may be made of another, e.g. be chosen cheaper material.

In a preferred embodiment, the surface of the filament may be structured or textured to provide a particular abrasive effect upon contact with the workpiece. In this case, a wave relationship or knob structure or a different structure on the filament surface may be present. The structure can also be formed only in subregions of the filament surface, these subregions are preferably in contact with the workpiece surface to be machined in a rotational movement of the deburring tool.

• - Übergreifen wenigstens einer zu entgratenden Kante mit dem Entgratwerkzeug, so dass die Kante zwischen zwei Rotationskörpern des Entgratwerkzeugs zu liegen kommt,
• - Rotieren des Entgratwerkzeugs auf Nenndrehzahl, wobei zumindest ein abrasives Mittel durch die Fliehkraft bevorzugt im Wesentlichen rechtwinklig von seiner Befestigungsfläche wegstrebt,
• - Erstes Hinbewegen des Entgratwerkzeugs zu der zu entgratenden Kante während der Rotationsbewegung des Entgratwerkzeugs, sodass eine Entgratungsbearbeitung an der Anfangs-Oberfläche der Kante bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs abhängt,
• - Weiteres Hinbewegen des Entgratwerkzeugs zu der zu entgratenden Kante während der Rotationsbewegung des Entgratwerkzeugs, sodass eine Entgratungsbearbeitung an der weiteren Oberfläche der Kante bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs abhängt,
• - Wegbewegen des Entgratwerkzeugs von der zu entgratenden Kante während der Rotationsbewegung des Entgratwerkzeugs, sodass eine Entgratungsbearbeitung an der End-Oberfläche der Kante bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs abhängt.

The invention further provides a method for deburring with a deburring tool according to the invention. For this purpose, the deburring tool is driven on a tool shank, which is aligned along a rotation axis of the deburring tool. It is suggested that the procedure be characterized by the following steps:

• Overlapping at least one edge to be deburred with the deburring tool, so that the edge comes to rest between two rotational bodies of the deburring tool,
• Rotating the deburring tool to rated rotational speed, wherein at least one abrasive agent, through the centrifugal force, preferably strives away substantially at right angles from its fastening surface,
• First moving the deburring tool to the edge to be deburred during the rotational movement of the deburring tool so as to effect a deburring operation on the initial surface of the edge, the deburring angle depending on the speed and movement of the deburring tool,
• Further moving the deburring tool to the edge to be deburred during the rotational movement of the deburring tool, so that a deburring on the further surface of the edge is effected, the Entgratungswinkel depends on the speed and the movement of the deburring tool,
• Moving the deburring tool away from the deburring edge during the rotational movement of the deburring tool, so that a deburring on the end surface of the edge is effected, the Entgratungswinkel depends on the speed and the movement of the deburring tool.

With this method, a gentle initial and final machining of the edge to be deburred can be achieved, so that it appears particularly smooth.

On the other hand, it is also possible to start the rotation process first and only then to position the edge between two rotation bodies.

It is also possible to choose a method in which the Entgratwerkug is not moved to the workpiece to be deburred and along this workpiece, but that the workpiece is additionally or only moved within the rotary tool.

During the rotational movement about the axis of rotation, the surface of the abrasive agent is to come into contact with the surface of the edge to be deburred, so that a deburring action is effected by the surface of the abrasive agent.

If, in a further embodiment of the method according to the invention, at least one flexible filament is used as the abrasive means, the speed of the deburring tool will determine the tensile stress in the filament.

If a flexible element is used, this is deflected during a rotational movement of the deburring tool by the centrifugal force from the rest position. The filament should preferably be able to be deflected up to an angle of 90 ° with respect to its attachment surface.

It is proposed to use the method when deburring workpieces that are plastic, composite fiber or lightweight rails.

list of figures

Further advantages result from the present description of the drawing. In the drawings, embodiments of the invention are shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

• 1 eine schematische Darstellung einer Draufsicht auf eine erste Ausführungsform eines erfindungsgemäßen Entgratwerkzeugs sowie auf das zu entgratende Werkstück;
• 2 eine schematische Darstellung eines Querschnittes durch die erste Ausführungsform des erfindungsgemäßen Entgratwerkzeugs im Betriebszustand;
• 3 eine schematische Darstellung eines Querschnittes durch die erste Ausführungsform des erfindungsgemäßen Entgratwerkzeugs im Ruhezustand;
• 4 eine schematische Darstellung einer Draufsicht auf eine zweite Ausführungsform eines erfindungsgemäßen Entgratwerkzeugs sowie auf das zu entgratende Werkstück;
• 5 eine schematische Darstellung einer dritten Ausführungsform des erfindungsgemäßen Entgratwerkzeugs;
• 6 eine schematische Schnittdarstellung durch eine Einzelheit einer vierten Ausführungsform des erfindungsgemäßen Entgratwerkzeugs.

It shows:

• 1 a schematic representation of a plan view of a first embodiment of a deburring tool according to the invention and on the workpiece to be deburred;
• 2 a schematic representation of a cross section through the first embodiment of the deburring tool according to the invention in the operating state;
• 3 a schematic representation of a cross section through the first embodiment of the deburring tool according to the invention in the idle state;
• 4 a schematic representation of a plan view of a second embodiment of a deburring tool according to the invention and on the workpiece to be deburred;
• 5 a schematic representation of a third embodiment of the deburring tool according to the invention;
• 6 a schematic sectional view through a detail of a fourth embodiment of the deburring tool according to the invention.

In the figures, the same or similar components are numbered with the same reference numerals.

1 to 3 show a deburring tool 10 for deburring a workpiece 30 which is a lightweight rail in the present embodiment. The lightweight rail 30 has a rectangular base profile 32 , on which a longitudinal ridge 34 molded or otherwise secured. The longitudinal bar 34 is cuboidal and extends over the entire length of the basic profile 32 , Along the freestanding surface 36 of the longitudinal bar 34 Two edges run on both sides 38 . 40 , These two edges 38 . 40 can with the deburring tool according to the invention 10 be deburred outstanding, which is explained in more detail below. For this purpose, the deburring tool 10 along its dashed axis of rotation 44 at least on one side of a tool shank, which can be clamped in a hand-held or a fixed rotary machine tool.

The deburring tool 10 has a basic body 12 , which is designed as a hollow cylinder. It is made of stainless steel. The length L of the hollow cylinder 12 is on the width B of the longitudinal bar 34 Voted. At the two end faces 14 . 16 of the hollow cylinder 12 is in each case a body of revolution 18 . 20 arranged. Each of the two rotating bodies 18 . 20 is formed as a truncated cone and accordingly has a base 22 , a deck surface 24 and a lateral surface 26 on. The opening angle W the truncated cones 18 . 20 is about 60 degrees. The height H the truncated cones 18 . 20 is about twice the length L of the cylindrical body 12 , or in other words, the outer radius R the truncated cones 18 . 20 is twice the radius r of the basic body 12 and thus much larger than the latter.

Both truncated cones 18 . 20 are the same size. They have been made by injection molding of plastic.

The truncated cones 18 . 20 are on their top surfaces 24 with the faces 14 . 16 of the basic body 12 bonded. The main body 12 thus provides a spacer ring between the two rotating bodies 18 . 20 represents.

At their mutually facing surfaces, namely on the lateral surfaces 26 , the two are truncated cones 18 . 20 with a variety of flexible filaments 50 equipped, which consist of plastic fibers, which have an abrasive surface. The individual filaments 50 are at their first end 52 to the lateral surfaces 26 the truncated cones 18 . 20 welded. The cross section of the filaments 50 is round and at least 10 times smaller than the free length L1 the filaments 50 , The filaments 50 are all arranged at the same distance from each other and evenly over the entire lateral surfaces 26 the two truncated cones 18 . 20 distributed. As in 3 implied are the filaments 50 rolled inward at rest and lie at least with their free ends on the lateral surfaces 26 the rotation body 18 . 20 on.

Through the two truncated cones 18 . 20 extends a cylindrical bore 28 , which with the longitudinal opening 42 in the main body 12 is aligned so that there is a continuous guide opening for a drive axle, of which here only the axis of rotation 44 is shown.

Once the rotation axis 44 is rotated, the filaments are directed 50 until, for example, at an angle of 90 degrees to the lateral surface 26 protrude. Then they come with the two edges 38 . 40 of the longitudinal bar 34 engage and can this jetty 34 thus deburring from both sides and thus particularly effective on the type of brushes.

• Verfahren 1
  1. 1. Unvollständiges Übergreifen des Anfangsbereichs des Längssteges 34 mit dem zylindrischen Bereich 12 des Entgratwerkzeugs 10, so dass die zu entgratenden Kanten 38, 40 zwischen den beiden Rotationskörpern 18, 20 des Entgratwerkzeugs 10 zu liegen kommen,
  2. 2. Rotieren des Entgratwerkzeugs 10 um die Achse 44 bis zur Nenndrehzahl, so dass die abrasiven Filamente 50 beginnen, von ihrer Befestigungsfläche 26 wegzustreben ,
  3. 3. Erstes Hinunterbewegen des Entgratwerkzeugs 10 zu dem Längssteg 34 während der Rotationsbewegung des Entgratwerkzeugs 10, sodass eine erste Entgratungsbearbeitung an der Anfangs-Oberfläche der Kanten 38 und 40 bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs 10 abhängt,
  4. 4. Weiteres Hinunterbewegen des Entgratwerkzeugs 10 zu dem Längssteg 34 der während der Rotationsbewegung des Entgratwerkzeugs 10, sodass eine weitere Entgratungsbearbeitung an den weiteren Oberflächen der Kanten 38 und 40 bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs 10 abhängt und letztendlich 90 Grad betragen soll, was durch die vorgenannten Eigenschaften der Filamente 50 erreicht wird,
  5. 5. „Abrollen“ des Entgratwerkzeugs 10 entlang des Längssteges 34 bis zu dessen Endbereich.
  oder
• Verfahren 2
  1. 1. Unvollständiges Einführen des Anfangsbereichs des Längssteges 34 in den zylindrischen Bereich 12 des Entgratwerkzeugs 10, so dass die zu entgratenden Kanten 38, 40 zwischen den beiden Rotationskörpern 18, 20 des Entgratwerkzeugs 10 zu liegen kommen,
  2. 2. Rotieren des Entgratwerkzeugs 10 um die Achse 44 bis zur Nenndrehzahl, so dass die abrasiven Filamente 50 beginnen, von ihrer Befestigungsfläche 26 wegzustreben ,
  3. 3. Erstes Hochbewegen des Längsstegs 34 zum Entgratwerkzeug 10 hin während der Rotationsbewegung des Entgratwerkzeugs 10, sodass eine erste Entgratungsbearbeitung an der Anfangs-Oberfläche der Kanten 38 und 40 bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs 10 abhängt,
  4. 4. Weiteres Hochbewegen des Längssteges 34 zum Entgratwerkzeugs 10 hin während der Rotationsbewegung des Entgratwerkzeugs 10, sodass eine weitere Entgratungsbearbeitung an den weiteren Oberflächen der Kanten 38 und 40 bewirkt wird, wobei der Entgratungswinkel von der Geschwindigkeit und der Bewegung des Entgratwerkzeugs 10 abhängt und letztendlich 90 Grad betragen soll, was durch die vorgenannten Eigenschaften der Filamente 50 erreicht wird,
  5. 5. „Durchziehen“ des Längssteges 34 durch das Entgratwerkzeug 10 bis zum Endbereich des Längssteges 34.

To achieve this, the following methods are proposed:

• Method 1
  1. 1. Incomplete overlap of the starting area of the longitudinal web 34 with the cylindrical area 12 of the deburring tool 10 so that the edges to be deburred 38 . 40 between the two bodies of revolution 18 . 20 of the deburring tool 10 to come to rest,
  2. 2. Rotate the deburring tool 10 around the axis 44 up to the rated speed, leaving the abrasive filaments 50 start from their attachment surface 26 to strive for
  3. 3. First move down the deburring tool 10 to the longitudinal ridge 34 during the rotational movement of the deburring tool 10 so that a first deburring machining on the initial surface of the edges 38 and 40 is effected, wherein the Entgratungswinkel of the speed and the movement of the deburring tool 10 depends
  4. 4. Further downward movement of the deburring tool 10 to the longitudinal ridge 34 during the rotational movement of the deburring tool 10 so that another deburring on the other surfaces of the edges 38 and 40 is effected, wherein the Entgratungswinkel of the speed and the movement of the deburring tool 10 depends and ultimately should be 90 degrees, which is due to the aforementioned properties of the filaments 50 is achieved
  5. 5. "Unrolling" the deburring tool 10 along the longitudinal ridge 34 up to its end area.
  or
• Method 2
  1. 1. Incomplete insertion of the starting area of the longitudinal web 34 in the cylindrical area 12 of the deburring tool 10 so that the edges to be deburred 38 . 40 between the two bodies of revolution 18 . 20 of the deburring tool 10 to come to rest,
  2. 2. Rotate the deburring tool 10 around the axis 44 up to the rated speed, leaving the abrasive filaments 50 start from their attachment surface 26 to strive for
  3. 3. First upward movement of the longitudinal bar 34 to the deburring tool 10 during the rotational movement of the deburring tool 10 so that a first deburring machining on the initial surface of the edges 38 and 40 is effected, wherein the Entgratungswinkel of the speed and the movement of the deburring tool 10 depends
  4. 4. Further upward movement of the longitudinal web 34 to the deburring tool 10 during the rotational movement of the deburring tool 10 so that another deburring on the other surfaces of the edges 38 and 40 is effected, wherein the Entgratungswinkel of the speed and the movement of the deburring tool 10 depends and ultimately should be 90 degrees, which is due to the aforementioned properties of the filaments 50 is achieved
  5. 5. "pulling through" the longitudinal web 34 through the deburring tool 10 to the end of the longitudinal web 34 ,

With these methods, a gentle initial and final machining of the edges to be deburred is achieved so that they appear particularly smooth.

At the in 4 indicated embodiment is the longitudinal web 34 the lightweight rail not completely cuboid, but formed in the upper part in cross-section as a right triangle. The one edge 38 runs accordingly at a greater distance from the base profile 32 the rail 30 as the other edge 40 , Around this triangular area 60 Being able to deburr effectively on the entire freestanding triangular surfaces is the body of revolution 18 with a larger radius R designed as the body of revolution 20 ,

In 5 is implied that the main body 12 a deburring tool according to the invention 10 not necessarily a spacer and not a separate component needs to be, but also from the bodies of revolution 18 . 20 can be made. This is on the top surface 24 of the truncated cone 18 a cylindrical extension 29 integrally formed. With this extension 29 engages the body of revolution 18 into the hole 28 of the other body of revolution 20 on.

In the variant after 6 the basic body sits down 12 of the deburring tool 10 made of two telescoping sleeves 70 . 72 of different diameters together. Here is the main body 12 thus adjustable in length, namely telescopically adjustable in length. Limiting means for the length adjustment are provided (not shown). Alternatively, the sleeves 70,72 may also have a corresponding thread, and be screwed axially adjustable against each other. This deburring tool can thus be easily adjusted for the deburring of edges of different thickness webs.

LIST OF REFERENCE NUMBERS

10

deburring

12

body

14

face

16

face

18

body of revolution

20

body of revolution

22

footprint

24

cover surface

26

lateral surface

28

lateral surface

29

extension

30

workpiece

32

profile

34

longitudinal web

36

surface

38

edge

40

edge

42

longitudinal opening

44

axle line

50

filament

52

attachment end

54

Free end

60

triangular section

70

shell

72

shell

B

width

H

height

H

height

L

length

L1

length

R

radius

r

radius

W

corner

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102006036839 A1 [0003]

Claims (24)

Deburring tool (10) for trimming at least one edge (38, 40) on a workpiece (30), said deburring tool (10) comprises a rotatable, at least substantially cylindrical basic body (12) and at least one abrasive-acting means (50), characterized characterized in that the base body (12) carries at least on each of its two end surfaces (14, 16) each a rotational body (18, 20) whose radius (R) is at least partially larger than the radius (r) of the base body (12) and wherein the rotary bodies (18, 20) have abrasively acting means (50) on their facing surfaces (26). Deburring tool (10) after Claim 1 , characterized in that at least one of the rotary bodies (18, 20) is formed as a truncated cone, whose jacket (26) with the abrasive means (50) is provided. Deburring tool (10) after Claim 1 or 2 , characterized in that the rotary bodies (18, 20) are at least approximately equal. Deburring tool (10) according to any one of the preceding claims, characterized in that at least one of the rotary bodies (18, 20) is detachably connected to the base body (12). Deburring tool (10) according to one of Claims 1 to 3 , characterized in that at least one of the rotary bodies (18, 20) is permanently connected to the base body (12). Deburring tool (10) according to one of the preceding claims, characterized in that the base body (12) is designed as a spacer ring / spacer sleeve. Deburring tool (10) after Claim 6 , characterized in that the base body (12) is adjustable in length, in particular telescopically adjustable in length. Deburring tool (10) after Claim 7 , characterized in that the base body (12) consists of two telescoping sleeves (70, 72). Deburring tool (10) after Claim 7 or 8th , characterized in that at least one limiting means for the length adjustment is provided. Deburring tool (10) according to any one of the preceding claims, characterized in that the base body (12) and / or the rotary body (18, 20) made of a plastic material, in particular injection-molded. Deburring tool (10) according to one of the preceding claims, characterized in that at least one of the abrasive means is attached to a flexible filament and / or a flexible filament (50), the filament (50) at a first end (52). with the rotary body (18, 20) is connected. Deburring tool (10) after Claim 11 , characterized in that the filament (50) in the resting state with its second, free end (54) at least approximately abuts its associated surface (26) of the rotary body (18, 20), but in the operating state of this surface (26) protrudes , Deburring tool (10) after Claim 11 or 12 , characterized in that the cross section of the filament (50) is substantially smaller than the free length (L1) of the filament (50). Deburring tool (10) according to one of Claims 11 to 13 , characterized in that on each rotary body (18, 20) a plurality of filaments (50) are present, which preferably all have the same length (L1). Deburring tool (10) according to one of Claims 11 to 14 , characterized in that the filaments (50) have a round cross-section. Deburring tool (10) according to any one of the preceding claims, characterized in that the filaments (26) as a bundle of individual filaments, ie as a multifilament, or as a single filament, ie as a single filament, i Deburring tool (10) according to one of Claims 11 to 16 , characterized in that the filament (50) is at least partially formed as a plastic fiber, glass fiber, metal fiber, ceramic fiber and / or carbon fiber or the like. Deburring tool (10) after Claim 16 or 17 , characterized in that the filament (15) is welded to the rotary body (16). Deburring tool (10) according to any one of the preceding claims, characterized in that the surface of the abrasive agent (50) is structured or textured to provide the abrasive action in contact with the workpiece (30). Method for deburring with a deburring tool (10) according to one of the preceding claims, characterized by the following steps: Spreading over at least one edge (38, 40) to be deburred with the deburring tool (10), so that the edge (38, 40) comes to rest between two rotational bodies (18, 20) of the deburring tool (10), - rotating the deburring tool (10 ) at rated speed, wherein at least one abrasive means (50) preferably struts away from its attachment surface (26) by the centrifugal force, - first moving the deburring tool (10) to the edge to be deburred (38, 40) during the rotational movement of the deburring tool (10) such that a deburring operation is effected on the initial surface of the edge (38, 40), the deburring angle being dependent on the speed and movement of the deburring tool (10), further advancing the deburring tool (10) to the deburring Edge (38, 40) during the rotational movement of the deburring tool (10), so that a Entgratungsbearbeitung on the further surface of the edge (38, 40) is effected, wherein the Deburring angle of the speed and the movement of the deburring tool (10) depends, - Moving the Entgratwerkzeugs (10) from the deburred edge (38, 40) during the rotational movement of the deburring tool (10), so that a Entgratungsbearbeitung on the end surface of the edge (38, 40) is effected, wherein the Entgratungswinkel on the speed and the movement of the deburring tool (10) depends. Method for deburring with a deburring tool (10) according to Claim 20 characterized in that during the rotational movement about the axis of rotation (44) the surface of the abrasive means (50) comes into contact with the surface of the edge (38, 40) to be deburred, a deburring action preferably being effected through the entire surface of the abrasive means (44). 50) takes place. Method for deburring with a deburring tool (10) according to one of Claims 20 or 21 , characterized in that as abrasive means at least one flexible filament (50) is used and that the speed of the deburring tool (10) determines the tensile stress in the filament (26). Method for deburring with a deburring tool (10) according to one of Claims 20 to 22 , characterized in that the filament (50) can be deflected at least up to an angle of 90 ° with respect to its mounting surface (26). Method for deburring with a deburring tool (10) according to one of Claims 20 to 23 , characterized in that the workpiece is a plastic, composite fiber or lightweight rail.

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