EP1767318B1 - Chip removing cutting tool - Google Patents
Chip removing cutting tool Download PDFInfo
- Publication number
- EP1767318B1 EP1767318B1 EP05020524A EP05020524A EP1767318B1 EP 1767318 B1 EP1767318 B1 EP 1767318B1 EP 05020524 A EP05020524 A EP 05020524A EP 05020524 A EP05020524 A EP 05020524A EP 1767318 B1 EP1767318 B1 EP 1767318B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- edge
- blade
- cutting tool
- edges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005520 cutting process Methods 0.000 title claims abstract description 215
- 239000000463 material Substances 0.000 claims description 15
- 230000036346 tooth eruption Effects 0.000 claims description 12
- 239000000969 carrier Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 16
- 238000013461 design Methods 0.000 description 5
- 238000004904 shortening Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 208000008918 voyeurism Diseases 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/021—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/002—Rotary tools without insertable or exchangeable parts, except the chucking part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
Definitions
- the invention relates to a cutting tool, in particular for processing wood-based materials or the like, having the features according to the preamble of claim 1.
- a cutting tool with an approximately circular disk-shaped, provided for rotating drive about a rotation axis supporting body known, distributed over the circumference of a number of cutting teeth is arranged.
- the cutting teeth each consist of a integrally formed on the support body knife carrier, which is upstream of a flute in the direction of rotation.
- a part of the cutting blade protrudes frontally in the axial direction on the support body and is designed as Trennschneidmesser for a fine cutting edge. Laterally offset in the axial direction, a number of cutting blades are arranged distributed over the circumference, which are wider compared to the Trennschneidmessern and provided as Zerspanschendmesser for cutting a wider projection.
- Zerspanwerkmaschinemaschinee the aforementioned design are used, for example, for the production of particle board or similar wood-like materials in order to bring them to a finished cut with a clean cut edge.
- a clean cutting result a high degree of sharpness and an exact mutual alignment, in particular the Trennschneidmesser required.
- a regularly performed re-sharpening process is time consuming and costly.
- the Trennschneidmesser for a cutting tool of the aforementioned design are usually carried out with an approximately square plan.
- the quadrangular Grundgriß can be parallelogram or diamond-shaped or designed as an irregular square.
- a peripheral and a one-sided, axially projecting beyond the support body side cutting is provided.
- These two cutting edges are each faced with mounting edges, in the area of which there is a mounting surface, for example for soldering to the bearing-side knife carriers.
- the two mounting edges run imaginary lines, which intersect in four corners and thus describe the above-mentioned quadrilateral.
- the peripheral edge and the lateral edge converge.
- the two mounting edges converge in the diagonally opposite corner point.
- the cutting corner and the mounting surface are diagonally opposite each other, resulting in eccentric forces in the execution of the cut.
- a sufficiently large mounting surface is required for soldering, in conjunction with the previously known quadrangular design of the cutting blade this receives a certain base with a predetermined length of the two cutting.
- the invention has the object of providing a cutting tool of the type described above in such a way that the maintenance cost is reduced.
- a cutting tool in which at least one of the two cutting edges and in particular the lateral cutting edge in the region of that corner point which is assigned to the adjacent mounting edge, has a recess which extends this corner point, forming at least one additional edge.
- both cutting edges of the cutting blade are each provided with a recess to form at least one such additional edge.
- the recess according to the invention causes a shortening of the associated cutting edge without adversely affecting the load bearing capacity in the region of the fastening surface.
- the at least one additional edge is outside the cutting area and therefore does not have to be sharpened or resharpened.
- the resharpened total length of the cutting edges or the corresponding material volume to be removed during resharpening is reduced. It has been found that, in particular on the lateral cutting edge, high frictional forces occur, which are reduced by the shortening of the cutting edge. Compared to the conventional design, a higher number of teeth and / or a smaller drive power can be selected.
- the recess is expedient outside the mounting surface of the knife carrier and in particular adjacent to the mounting surface. With effective reduction of the blade length, the intended mounting surface remains unaffected with the associated load capacity of the solder joint.
- the recess may be formed by one or more additional edges in any rectilinear or curved shape.
- the recess is formed by a single, especially rectilinear additional edge which is easy to handle in terms of manufacturing technology and which can serve to adjust the cutting edge relative to a reference surface during insertion in accordance with the more detailed description below.
- the respective recess is formed by two convexly arranged, in particular rectilinear, additional edges.
- the result is a convex notch, which clearly keeps the additional edges of the cutting edge of the workpiece and thus avoids a rubbing contact with the cutting edge or with chips.
- the cutting blade provided with the recess is preferably the cutting blade and / or the cutting blade cutter in an embodiment, which is formed in its axially lateral region as Trennschneidmesser.
- the desired high number of teeth for the cutting blade causes a significant savings in Nachstationrfaufwand and required drive power.
- the additional edge located in the region of the lateral cutting edge is aligned with a reference surface of the supporting body.
- the additional edge and the aligned reference surface lie in the region of the recess and thus away from the executive cut. simultaneously But they are also close to the lateral edge on the same side of the cutting tool.
- the lateral positional adjustment to be made during assembly of the cutting blade is increased in precision while avoiding tolerance chains.
- the effort for the subsequent material-removing machining to achieve an identical cutting contour of all cutting teeth is reduced.
- the reference surface may be aligned radially inward to the additional edge.
- the reference surface and the additional edge aligned therewith are at least approximately parallel to a plane of the support body and in particular with respect to a direction of rotation of the cutting tool behind the aligned with her additional edge.
- the precision of the lateral position alignment is improved. In projection on the direction of rotation, the reference surface does not take up any additional space, as a result of which the free spaces between the support body and the material to be cut can remain comparatively large.
- Fig. 1 shows in a perspective overview representation of an inventive cutting tool, which is intended for processing solid wood, chipboard or similar wood-like materials.
- the cutting tool has an approximately circular disk-shaped support body 1, which is provided for rotating drive about an axis of rotation 32 perpendicular and centered to the surface of the support body 1.
- a number of cutting teeth 2, 3, 3 ' is arranged, each consisting of integrally formed circumferentially on the support body 1 blade carriers 4, 5 and frontally soldered, formed as separate parts cutting blades 6, 7, 7'.
- a radially inwardly extending chip space 31, 32 is provided before each cutting tooth 2, 3, 3 '.
- the cutting blades 6 of the cutting teeth 2 are designed as Trennschneidmesser described in more detail below, while with a smaller number of teeth, the cutting blades 7, 7 'of the cutting teeth 3, 3' are formed as further described below Zerspanschendmesser.
- the support body 1 is formed together with the integrally formed thereon, radially projecting blade carriers 4, 5 of tool steel.
- Fig. 2 shows a radial plan view of the cutting tool after Fig. 1 ,
- the plurality of cutting teeth 2 with the cutters 6 designed as cutting blades protrude on one side in relation to the axis of rotation 32 axial direction on the support body 1 and form a parting plane 41, in which receives the machined, for better clarity, not shown workpiece receives a fine cut edge , Trained as Trennschneidmesser cutting blade 6 have only a small axial extent and cover in the opposite direction relative to the parting plane 41, the support body 1 is not or only slightly.
- a smaller number of cutting teeth 3 ' is provided, whose cutting blades 7' designed as cutting blade cutters are fastened to associated knife carriers 5 '.
- the flat cutting blade 7 ' lie in a common plane with associated cutting blades 6, wherein between the two in the axial direction a distance remains.
- Cutting blades 6 Between groups of cutting blades 6 are occasionally arranged cutting teeth 3 with blade carriers 5 and attached cutting blades 7, which are offset in the circumferential direction to the cutting blades 7 'and which are also designed as Zerspanschendmesser.
- the cutting blades 7 extend in the axial direction, starting from the parting plane 41 via the cutting blades 6 and cover in projection on the circumferential direction of the axial gap between the cutting blades 7 'and the cutting blades 6 from.
- the cutting blade 7 are shown in the illustration Fig. 4 formed in the region of the parting plane 41 geometrically comparable to the running as a cutting blade cutting blades 6.
- the cutting blade 6 designed as a cutting blade produce in the parting plane 41 due to their high number of teeth and their cutting geometry described in more detail below a fine cut section, while separated from the cutting material 6 in the opposite plane to the parting plane 41 of the Zerspanwerkmaschinemaschinemaschinees by means of Cutter cutting knife running cutting blade 7, 7 'coarse machined.
- Fig. 3 shows a front view of the running as Trennschneidmesser cutting blade 6 after the Fig. 1 and 2 , which is fastened with a hatched indicated attachment surface 28 frontally on one of the aforementioned blade carrier 4 by soldering. Instead of a solder joint, another compound may be considered.
- the cutting blade 6 according to the invention has a peripheral cutting edge 9 and a one-sided, axially above the supporting body 1 (FIG. Fig. 2 ) protruding, in the parting plane 41 ( Fig. 2 ) lying lateral cutting edge 10.
- the cutting blade 6 is provided with mounting edges 11, 12 which bound the fastening surface 28 laterally and radially inwardly.
- the peripheral cutting edge 9 is in the radial direction and the lateral Cut 10 in the axial direction on the mounting surface 28 forth.
- the two cutting edges 9, 10 and the two mounting edges 11, 12 extend imaginary lines 17, 18, 19, 20, which intersect at four corners 13, 14, 15, 16 and span a rectangle 21 indicated by dashed lines.
- the cutting edges 9, 10 and the mounting edges 11, 12 and the lines 17, 18, 19, 20 defined thereby run in a straight line. It can also be provided a slightly curved course.
- the spanned square 21 is a parallelogram in the embodiment shown. It may also be a diamond-trapezoidal or other quadrangular shape and in particular an irregular square be provided.
- a sharpened chamfer 34 is arranged, in order to avoid peak loading of the cutting edges 9, 10 in the region of the corner point 15.
- the lateral cutting edge 10 is provided with a recess 26.
- two convexly arranged, rectilinear additional edges 22, 23 of the cutting blade 6 are formed by the recess 26.
- the recess 26 lies in the axial direction outside of the mounting surface 28 and in the illustrated embodiment with the additional edge 23 directly adjoins the mounting surface 28.
- the above applies analogously to a recess 27 of the cutting blade 6, which is arranged in the region of the diagonally opposite corner point 14.
- the line 18 of the peripheral edge 9 and the line 17 of the axially inner mounting edge 11 converge.
- the peripheral cutting edge 9 and the associated mounting edge 11 are formed shortened relative to the adjacent corner point 14.
- the recess 27 is formed by two convexly arranged, rectilinearly extending additional edges 24, 25, whereby the corner point 14 is recessed from the contour of the cutting blade 6.
- the recess 27 is located in the radial direction outside of the mounting surface 28, wherein the adjacent to the mounting edge 11 end of the additional edge 25 also adjoins the mounting surface 28.
- additional edges with a curved course or the like may also be expedient.
- the shortening of the cutting edges 9, 10 and the mounting edges 11, 12 with respect to the length of the associated lines 17, 18, 19, 20 is advantageously in the range of one quarter inclusive up to and including one half and in the embodiment shown is in each case about one third.
- Fig. 4 shows a front view of the cutting blade 7 after the Fig. 1 and 2 , which along with its associated mounting surface 29 in the axial direction in comparison to the cutting blade 6 after Fig. 3 is broader.
- the cutting blade 7 In its region adjoining the lateral cutting edge 10, the cutting blade 7 is identical in its contour to the cutting blade 6 Fig. 3 formed, as is apparent from the inserted indicated, dash-dotted contour of the cutting blade 6. Outside the dot-dashed contour of the cutting blade 6, the cutting blade 7 is provided with a peripheral cutting edge 8, which extends in a straight line as well as the radially inner mounting edge 11 to the corner 14. In the area of the corner point 14 no recess is provided.
- the cutting blade 7 is on the associated blade carrier 5 ( Fig.
- the cutting blade 7 formed as ZerspanCndmesser is formed in this axially lateral region and the associated peripheral region as Trennschneidmesser with a peripheral cutting edge 9 and a lateral cutting edge 10.
- the peripheral cutting edge 9 is straight and without interruption in the peripheral edge 8 of Zerspanschneidmessers over.
- the cutting blade 7 is correct Fig. 4 with the cutting blade 6 after Fig. 3 match. In particular, is in Region of the corner 16 a geometrically identical recess 26 is provided.
- Fig. 5 shows a perspective detailed view of the cutting tool after the Fig. 1 and 2 in the peripheral area.
- a direction of rotation of the cutting tool with the support body 1 is indicated by an arrow 36.
- An axial direction is indicated by a double arrow 38.
- the knife carrier 4, 5 have for adjusting the position of the cutting blades 6, 7 approximately in the axial direction 38 extending, in cross-section approximately L-shaped recesses, which are not shown here and in which the cutting blades 6, 7 are used.
- the cutting blades 6, 7 are fixed in the radial direction and in the direction of rotation 36. In the not yet soldered state they are displaced in the axial direction 38.
- the knife carriers 4, 5 on their parting plane 41 (FIG. Fig.
- the reference surfaces 35 are milled or ground from the material of the knife carrier 4, 5.
- lateral alignment surfaces 37 are formed on the cutting blades 6, 7, which in the axial direction inwardly of the lateral cutting edges 10 (FIG. Fig. 3, 4 ) and thus of the workpiece to be produced on the cutting edge are kept free.
- the reference surfaces 35 are in the illustrated embodiment with respect to the direction of rotation 36 of the cutting tool behind the additional edge 23 and the associated alignment surface 37 of the respective cutting blade 6, 7.
- the reference surface 35 and the alignment surface 37 and the additional edge 23 form a common plane, at least approximately parallel to an in Fig. 2 indicated level 33 of the support body 1 is located.
- the additional edge 23 and the associated alignment surface 37 are thus aligned with the associated reference surface 35 with respect to the direction of rotation 36. It may also be desirable to have a radially inward alignment of the alignment surface 37 and the associated reference surface 35.
- Position adjustment of the cutting blade 6, 7 is given in the axial direction 38.
- the cutting knives 6, 7 are adjusted in the area of the attachment surfaces 28, 29 (FIG. Fig. 3, 4 ) soldered to the faces of the blade carrier 4, 5.
- a radial position adjustment of the cutting blades 6, 7 are made.
- Fig. 6 shows the cutting blade 6 after Fig. 3 according to which the lateral cutting edge 10 extends approximately parallel to the radial direction represented by an arrow 42. Contrary to the radial direction 42, the lateral cutting edge 10 is slightly offset by about 1 ° relative to the parting plane 41 (FIG. Fig. 2 ) inclined inwards. Starting from the corner point 15, the radially outer cutting edge 9 increases linearly with increasing axial course in the radial direction 42, according to which the circle diameter of the cutting edge 9, starting from the corner point 15, increases progressively.
- Such a cutting geometry is used in particular for the longitudinal cutting of workpieces.
- the cutting edges 9, 10 enclose an angle ⁇ of about 105 °.
- Dash-dotted sharpening lines 39 indicate the position and the course of the cutting edge 9 after various sharpening operations.
- sharpening lines 40 indicated by dot-dash lines, which indicates the position and the course of the lateral cutting edge 10 after various sharpening operations.
- the higher-loaded peripheral, radially outer cutting edge 9 is machined during resharpening more than the lateral cutting edge 10, as shown by the approximately twice the distance between the sharpening lines 39 compared to the distance of the sharpening lines 40 results.
- the material volume of the cutting blade 6 to be removed during the sharpening operation results from the length of the respective sharpening line 39, which in one direction through the point of intersection with an associated sharpening line 40 and in the Counter direction is limited by the intersection with the additional edge 24 or the additional edge 25. It can be clearly seen that the length of the sharpening lines 39 through the recess 27 with respect to the contour of the quadrangle 21 (FIG. Fig. 3 ) is significantly reduced.
- the sharpening is done in particular by rotary erosion, whereby the material of the cutting blade 6 is removed as a volume.
- the work progress when re-sharpening or when fitting individual cutting blade 6 is directly dependent on the volume of the removed blade material.
- the Erodieraufwand is significantly reduced.
- Fig. 7 shows the cutting blade 7 after Fig. 4 in which the sharpening lines 39, 40 and the angle ⁇ are as shown to Fig. 6 are registered. Only the side cutting edge 10 associated Schulrflinien 40 are shortened by the recess 26. In the remaining features and reference numerals, the representation is correct Fig. 7 with the after the Fig. 4 and 6 match.
- the 8 and 9 show still alternative embodiments of the cutting blades 6, 7 after the Fig. 4 to 7 in which the angle ⁇ between the lateral cutting edge 10 and the peripheral cutting edge 9 is less than 90 ° and in the exemplary embodiment shown is approximately 75 °. This reduces the circle diameter of the cutting edges 8, 9 on the cutting blades 6, 7 starting from the corner point 15.
- Such cutting geometries are used on Zerspanwerkmaschineen for cross-machining of corresponding workpieces.
- the recesses 26, 27 are each formed by a single, rectilinear additional edge 23, 25. Again, the shortening of the sharpening lines 30, 40 at the intersection with the respective additional edge 23, 25 clearly.
- the in the 8 and 9 shown cutting knife 6, 7 can as well as in the Fig. 3 to 7 shown cutting blade 6, 7 can also be provided with recesses 26, 27 which are formed by a total of four additional edges 22, 23, 24, 25. Likewise, it may be advantageous in the Fig. 3 to 7 shown cutting blades 6, 7 with recesses 26, 27 to be provided, which are formed only by a respective additional edge 23, 25. It may also be expedient to provide a cutting blade 6, 7 with two differently shaped recesses 26, 27. In the other features and reference numerals, the cutting blade 6 is correct Fig. 8 with the after the Fig. 3 and 6 and the cutting blade 7 after Fig. 9 with the after the Fig. 4 and 7 match.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
- Polishing Bodies And Polishing Tools (AREA)
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- Auxiliary Devices For Machine Tools (AREA)
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Abstract
Description
Die Erfindung betrifft ein Zerspanungswerkzeug insbesondere zur Bearbeitung von Holzwerkstoffen oder dgl. mit den Merkmalen nach dem Oberbegriff des Anspruchs 1.The invention relates to a cutting tool, in particular for processing wood-based materials or the like, having the features according to the preamble of
Aus der
Ein Teil der Schneidmesser ragt stirnseitig in axialer Richtung über den Tragkörper hervor und ist als Trennschneidmesser für eine feine Schnittkante ausgebildet. In axialer Richtung seitlich versetzt sind eine Anzahl von Schneidmessern über den Umfang verteilt angeordnet, die im Vergleich zu den Trennschneidmessern breiter ausgebildet sind und als Zerspanschneidmesser zum Zerspanen eines breiteren Überstandes vorgesehen sind.A part of the cutting blade protrudes frontally in the axial direction on the support body and is designed as Trennschneidmesser for a fine cutting edge. Laterally offset in the axial direction, a number of cutting blades are arranged distributed over the circumference, which are wider compared to the Trennschneidmessern and provided as Zerspanschendmesser for cutting a wider projection.
Zerspanwerkzeuge der vorgenannten Bauform werden beispielsweise zur Herstellung von Spanplatten oder vergleichbaren holzartigen Werkstoffen eingesetzt, um diese mit einer sauberen Schnittkante auf Fertigmaß zu bringen. Für ein sauberes Schnittergebnis ist ein hoher Schärfegrad und eine exakte gegenseitige Ausrichtung insbesondere der Trennschneidmesser erforderlich. Ein hierzu regelmäßig ausgeführter Nachschärfvorgang ist zeitaufwendig und kostenintensiv.Zerspanwerkzeuge the aforementioned design are used, for example, for the production of particle board or similar wood-like materials in order to bring them to a finished cut with a clean cut edge. For a clean cutting result, a high degree of sharpness and an exact mutual alignment, in particular the Trennschneidmesser required. A regularly performed re-sharpening process is time consuming and costly.
Insbesondere die Trennschneidmesser für ein Zerspanwerkzeug der vorgenannten Bauform sind üblicherweise mit einem etwa viereckigen Grundriß ausgeführt. Der viereckige Grundgriß kann parallelogramm- oder rautenförmig ausgebildet oder auch als unregelmäßiges Viereck ausgeführt sein. Dabei ist eine umfangsseitige und eine einseitige, axial über den Tragkörper hervorstehende seitliche Schneide vorgesehen. Diesen beiden Schneiden liegen jeweils Montagekanten gegenüber, in deren Bereich sich eine Montagefläche beispielsweise zum Verlöten mit den tragkörperseitigen Messerträgern befindet. Entlang der beiden Schneiden und der beiden Montagekanten verlaufen gedachte Linien, die sich in vier Eckpunkten schneiden und dadurch das vorgenannte Viereck beschreiben. In einer der Eckpunkte dieses Vierecks laufen die umfangsseitige Schneide und die seitliche Schneide zusammen. Im diagonal gegenüberliegenden Eckpunkt laufen die beiden Montagekanten zusammen. Der Schneideneckpunkt und die Befestigungsfläche liegen sich diagonal gegenüber, wodurch bei der Ausführung des Schnittes exzentrische Kräfte entstehen. Zur Aufnahme der daraus resultierenden Belastungen ist eine hinreichend große Befestigungsfläche zum Verlöten erforderlich, aus der in Verbindung mit der vorbekannten viereckigen Bauform des Schneidmessers dieses eine bestimmte Grundfläche mit vorgegebener Länge der beiden Schneiden erhält.In particular, the Trennschneidmesser for a cutting tool of the aforementioned design are usually carried out with an approximately square plan. The quadrangular Grundgriß can be parallelogram or diamond-shaped or designed as an irregular square. In this case, a peripheral and a one-sided, axially projecting beyond the support body side cutting is provided. These two cutting edges are each faced with mounting edges, in the area of which there is a mounting surface, for example for soldering to the bearing-side knife carriers. Along the two cutting edges and the two mounting edges run imaginary lines, which intersect in four corners and thus describe the above-mentioned quadrilateral. In one of the vertices of this quadrilateral, the peripheral edge and the lateral edge converge. The two mounting edges converge in the diagonally opposite corner point. The cutting corner and the mounting surface are diagonally opposite each other, resulting in eccentric forces in the execution of the cut. To accommodate the resulting loads a sufficiently large mounting surface is required for soldering, in conjunction with the previously known quadrangular design of the cutting blade this receives a certain base with a predetermined length of the two cutting.
Für ein sauberes Schnittergebnis wird eine hohe Zähnezahl angestrebt, die in Verbindung mit der vorgegebenen Länge der Schneidkanten eine hohe Antriebsleistung erfordert. Nachteilig ist auch der hohe Aufwand beim Nachschärfen, was bei Diamantwerkstoffen der Schneidmesser beispielsweise auf dem Wege des Erodierens erfolgt. Eine hohe Anzahl von Schneidzähnen müssen jeweils über die gesamte Länge beider Schneiden nachgeschärft werden, woraus sich ein hoher Zeit- und Kostenaufwand ergibt.For a clean cutting result, a high number of teeth is sought, which in conjunction with the predetermined length of the cutting edges requires a high drive power. Another disadvantage is the high cost of re-sharpening, which is done in diamond materials of the cutting blade, for example, by eroding. A high number of cutting teeth must be resharpened over the entire length of both cutting, resulting in a high time and cost.
Problematisch ist auch der Austausch eines einzelnen beschädigten oder abgeplatzten Schneidmessers. Dieses wird als Neuteil positioniert, wobei an der der seitlichen Schneide gegenüberliegenden seitlichen Montagekante ein Anschlag eingesetzt wird. Dieser Anschlag ist toleranzbehaftet und setzt zur Anpassung an die übrigen Schneidmesser den Abtrag eines entsprechenden Materialvolumens im Bereich beider Schneiden voraus. Dieses abzutragende Materialvolumen wird noch in dem Falle erhöht, in dem die verbleibenden Schneiden bereits ein- oder mehrfach zuvor nachgeschärft wurden. Das neu eingesetzte Schneidmesser muß im Bereich beider Schneiden auf das Radial- und Axialmaß der übrigen Schneidmesser gebracht werden.Also problematic is the replacement of a single damaged or chipped cutting blade. This is positioned as a new part, wherein a stop is used on the side edge opposite the lateral cutting edge. This stop is subject to tolerances and requires the adaptation to the other cutting blades the removal of a corresponding volume of material in the area of both cutting. This volume of material to be removed is increased even in the case in which the remaining cutting edges have already been sharpened one or more times before. The newly inserted cutting blade must be brought in the area of both cutting to the radial and axial dimensions of the other cutting blades.
Der Erfindung liegt die Aufgabe zugrunde, ein Zerspanwerkzeug der eingangs beschriebenen Gattung derart weiterzubilden, daß der Instandhaltungsaufwand verringert ist.The invention has the object of providing a cutting tool of the type described above in such a way that the maintenance cost is reduced.
Die Aufgabe wird durch ein Zerspanwerkzeug mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by a cutting tool having the features of
Es wird ein Zerspanwerkzeug vorgeschlagen, bei dem zumindest eine der beiden Schneiden und insbesondere die seitliche Schneide im Bereich desjenigen Eckpunktes, der der angrenzenden Montagekante zugeordnet ist, unter Bildung mindestens einer zusätzlichen Kante eine diesen Eckpunkt ausnehmende Aussparung aufweist. Bevorzugt sind beide Schneiden des Schneidmessers mit je einer Aussparung unter Bildung mindestens einer solchen zusätzlichen Kante versehen. Die erfindungsgemäße Aussparung bewirkt eine Verkürzung der zugeordneten Schneide, ohne die Tragfähigkeit im Bereich der Befestigungsfläche zu beeinträchtigen. Die mindestens eine zusätzliche Kante liegt außerhalb des Schnittbereiches und muß deshalb nicht geschärft bzw. nachgeschärft werden. Die nachzuschärfende Gesamtlänge der Schneiden bzw. das entsprechende beim Nachschärfen abzutragende Materialvolumen ist verringert. Es hat sich gezeigt, daß insbesondere an der seitlichen Schneide hohe Reibkräfte entstehen, die durch die Verkürzung der Schneide verringert werden. Im Vergleich zur herkömmlichen Bauweise kann eine höhere Zähnezahl und/oder eine kleinere Antriebsleistung gewählt werden.A cutting tool is proposed, in which at least one of the two cutting edges and in particular the lateral cutting edge in the region of that corner point which is assigned to the adjacent mounting edge, has a recess which extends this corner point, forming at least one additional edge. Preferably, both cutting edges of the cutting blade are each provided with a recess to form at least one such additional edge. The recess according to the invention causes a shortening of the associated cutting edge without adversely affecting the load bearing capacity in the region of the fastening surface. The at least one additional edge is outside the cutting area and therefore does not have to be sharpened or resharpened. The resharpened total length of the cutting edges or the corresponding material volume to be removed during resharpening is reduced. It has been found that, in particular on the lateral cutting edge, high frictional forces occur, which are reduced by the shortening of the cutting edge. Compared to the conventional design, a higher number of teeth and / or a smaller drive power can be selected.
Die Aussparung liegt zweckmäßig außerhalb der Befestigungsfläche des Messerträgers und grenzt insbesondere an die Befestigungsfläche an. Bei wirkungsvoller Verringerung der Schneidenlänge bleibt die vorgesehene Befestigungsfläche mit der zugeordneten Tragfähigkeit der Lötverbindung unbeeinträchtigt.The recess is expedient outside the mounting surface of the knife carrier and in particular adjacent to the mounting surface. With effective reduction of the blade length, the intended mounting surface remains unaffected with the associated load capacity of the solder joint.
Die Aussparung kann durch eine oder mehrere zusätzliche Kanten in beliebiger geradliniger oder geschwungener Form gebildet sein. In einer bevorzugten Ausführungsform ist die Aussparung durch eine einzelne, insbesondere geradlinige zusätzliche Kante gebildet, die fertigungstechnisch einfach zu handhaben ist und die entsprechend der weiter unten stehenden näheren Beschreibung zur Justierung der Schneide gegenüber einer Bezugsfläche beim Einsetzen dienen kann.The recess may be formed by one or more additional edges in any rectilinear or curved shape. In a preferred embodiment, the recess is formed by a single, especially rectilinear additional edge which is easy to handle in terms of manufacturing technology and which can serve to adjust the cutting edge relative to a reference surface during insertion in accordance with the more detailed description below.
In einer zweckmäßigen Alternative ist die jeweilige Aussparung durch zwei konvex zueinander angeordnete, insbesondere geradlinig verlaufende zusätzliche Kanten gebildet. Es entsteht eine konvexe Ausklinkung, die die zusätzlichen Kanten deutlich von der Schnittkante des Werkstücks freihält und damit eine reibende Berührung mit der Schnittkante oder mit Spänen vermeidet.In an expedient alternative, the respective recess is formed by two convexly arranged, in particular rectilinear, additional edges. The result is a convex notch, which clearly keeps the additional edges of the cutting edge of the workpiece and thus avoids a rubbing contact with the cutting edge or with chips.
Das mit der Aussparung versehene Schneidmesser ist bevorzugt das Trennschneidmesser und/oder das Zerspanschneidmesser in einer Ausführungsform, die in ihrem axial seitlichen Bereich als Trennschneidmesser ausgebildet ist. Die für das Trennschneidmesser gewünschte hohe Zähnezahl bewirkt eine ausgeprägte Einsparung an Nachschärfaufwand und erforderlicher Antriebsleistung.The cutting blade provided with the recess is preferably the cutting blade and / or the cutting blade cutter in an embodiment, which is formed in its axially lateral region as Trennschneidmesser. The desired high number of teeth for the cutting blade causes a significant savings in Nachschärfaufwand and required drive power.
In vorteilhafter Weiterbildung fluchtet die im Bereich der seitlichen Schneide liegende zusätzliche Kante mit einer Bezugsfläche des Tragkörpers. Die zusätzliche Kante und die dazu fluchtende Bezugsfläche liegen im Bereich der Aussparung und damit abseits vom ausführenden Schnitt. Gleichzeitig liegen sie aber auch nahe der seitlichen Schneide auf der gleichen Seite des Zerspanwerkzeuges. Die bei der Montage des Schneidmessers vorzunehmende seitliche Lagejustierung ist unter Vermeidung von Toleranzketten in der Präzision gesteigert. Der Aufwand für das anschließende materialabtragende Bearbeiten zur Erzielung einer identischen Schneidenkontur aller Schneidzähne ist verringert.In an advantageous embodiment, the additional edge located in the region of the lateral cutting edge is aligned with a reference surface of the supporting body. The additional edge and the aligned reference surface lie in the region of the recess and thus away from the executive cut. simultaneously But they are also close to the lateral edge on the same side of the cutting tool. The lateral positional adjustment to be made during assembly of the cutting blade is increased in precision while avoiding tolerance chains. The effort for the subsequent material-removing machining to achieve an identical cutting contour of all cutting teeth is reduced.
Die Bezugsfläche kann radial nach innen zur zusätzlichen Kante fluchten. Bevorzugt liegen die Bezugsfläche und die damit fluchtende zusätzliche Kante zumindest näherungsweise parallel zu einer Ebene des Tragkörpers und insbesondere bezüglich einer vorgesehenen Drehrichtung des Zerspanwerkzeuges hinter der mit ihr fluchtenden zusätzlichen Kante. Die Präzision der seitlichen Lageausrichtung ist verbessert. In Projektion auf die Drehrichtung nimmt die Bezugsfläche keinen zusätzlichen Raum ein, wodurch die Freiräume zwischen dem Tragkörper und dem zu schneidenden Material vergleichsweise groß bleiben können.The reference surface may be aligned radially inward to the additional edge. Preferably, the reference surface and the additional edge aligned therewith are at least approximately parallel to a plane of the support body and in particular with respect to a direction of rotation of the cutting tool behind the aligned with her additional edge. The precision of the lateral position alignment is improved. In projection on the direction of rotation, the reference surface does not take up any additional space, as a result of which the free spaces between the support body and the material to be cut can remain comparatively large.
Ausführungsbeispiele der Erfindung sind im folgenden anhand der Zeichnung näher beschrieben. Es zeigen:
- Fig. 1
- in perspektivischer Übersichtsdarstellung ein erfindungsgemäß ausgeführtes Zerspanwerkzeug mit einer Vielzahl über den Umfang verteilter Trennschneidmesser und einer geringeren Anzahl von Zerspanschneidmessern;
- Fig. 2
- eine radiale Draufsicht des Zerspanwerkzeuges nach
Fig. 1 mit Einzelheiten zur geometrischen Anordnung der Schneidzähne; - Fig. 3
- eine Frontansicht des Trennschneidmessers nach den
Fig. 1 und 2 mit zwei diagonal gegenüberliegenden Aussparungen im Schneidenbereich; - Fig. 4
- eine Frontansicht eines Zerspanschneidmessers nach den
Fig. 1 und 2 , welches in seinem seitlichen Stirnbereich als Trennschneidmesser entsprechend der Darstellung nachFig. 3 ausgeführt ist; - Fig. 5
- eine perspektivische Detailansicht des erfindungsgemäßen, Zerspanwerkzeuges mit Einzelheiten zu seitlichen Zusatzkanten an den Schneidmessern und dazu fluchtenden Bezugsflächen;
- Fig. 6
- das Trennschneidmesser nach
Fig. 3 mit schematisch eingezeichneten Schärflinien zur Darstellung des Nachschärfvorganges; - Fig. 7
- das Zerspanschneidmesser nach
Fig. 4 mit den vorgenanten Schärflinien; - Fig. 8
- eine Ausführungsvariante des Trennschneidmessers nach
Fig. 6 mit einem spitzen Schneidenwinkel;
- Fig. 9
- eine Frontansicht eines dem Trennschneidmesser nach
Fig. 8 zugeordneten Zerspanschneidmessers mit einem ebenfalls spitzen Schneidenwinkel.
- Fig. 1
- in a perspective overview representation of an inventively designed cutting tool with a plurality of distributed over the circumference Trennschneidmesser and a smaller number of Zerspanschneidmessern;
- Fig. 2
- a radial top view of the cutting tool after
Fig. 1 with details of the geometric arrangement of the cutting teeth; - Fig. 3
- a front view of the Trennschneidmessers after the
Fig. 1 and 2 with two diagonally opposite recesses in the cutting area; - Fig. 4
- a front view of a Zerspanschidmesser after the
Fig. 1 and 2 , which in its lateral frontal area as Trennschneidmesser according to the illustrationFig. 3 is executed; - Fig. 5
- a detailed perspective view of the cutting tool according to the invention with details of lateral additional edges on the cutting blades and aligned reference surfaces;
- Fig. 6
- the Trennschneidmesser after
Fig. 3 with schematically drawn sharpening lines for displaying the re-sharpening process; - Fig. 7
- the cutting blade after
Fig. 4 with the above-mentioned sharpening lines; - Fig. 8
- a variant of the Trennschneidmessers after
Fig. 6 with a sharp cutting angle;
- Fig. 9
- a front view of the Trennschneidmesser after
Fig. 8 associated Zerspanzneidmessers with a likewise acute cutting angle.
Mit einer hohen Zähnezahl sind die Schneidmesser 6 der Schneidzähne 2 als weiter unten näher beschriebene Trennschneidmesser ausgeführt, während mit geringerer Zähnezahl die Schneidmesser 7, 7' der Schneidzähne 3, 3' als weiter unten näher beschriebene Zerspanschneidmesser ausgebildet sind. Die Schneidmesser 6, 7, 7' bestehen im gezeigten Ausführungsbeispiel aus polykristallinem Diamant, können jedoch auch vorteilhaft aus Monodiamant oder Hartmetall bestehen. Der Tragkörper 1 ist zusammen mit den einteilig daran angeformten, radial hervorstehenden Messerträgern 4, 5 aus Werkzeugstahl gebildet.With a high number of teeth, the
In axialer Richtung gegenüberliegend ist eine geringere Anzahl von Schneidzähnen 3' vorgesehen, deren als Zerspanschneidmesser ausgeführte Schneidmesser 7' an zugeordneten Messerträgern 5' befestigt sind. Die im Vergleich zu den Schneidmessern 6 in deutlich geringerer Anzahl vorgesehenen Schneidmesser 7' weisen in der axialen Richtung eine mehrfache Breite im Vergleich zur axialen Breite der Schneidmesser 6 auf. Im gezeigten Ausführungsbeispiel liegen die flächigen Schneidmesser 7' in einer gemeinsamen Ebene mit zugeordneten Schneidmessern 6, wobei zwischen beiden in axialer Richtung ein Abstand verbleibt.Opposite in the axial direction, a smaller number of cutting teeth 3 'is provided, whose cutting blades 7' designed as cutting blade cutters are fastened to associated
Zwischen Gruppen von Schneidmessern 6 sind vereinzelt Schneidzähne 3 mit Messerträgern 5 und daran befestigten Schneidmessern 7 angeordnet, die in Umfangsrichtung versetzt zu den Schneidmessern 7' liegen und die ebenfalls als Zerspanschneidmesser ausgeführt sind. Die Schneidmesser 7 erstrecken sich in axialer Richtung ausgehend von der Trennebene 41 über die Schneidmesser 6 hinaus und decken in Projektion auf die Umfangsrichtung die axiale Lücke zwischen den Schneidmessern 7' und den Schneidmessern 6 ab.Between groups of cutting
Die Schneidmesser 7 sind entsprechend der Darstellung nach
Durch die beiden Schneiden 9, 10 und die beiden Montagekanten 11, 12 verlaufen gedachte Linien 17, 18, 19, 20, die sich in vier Eckpunkten 13, 14, 15, 16 schneiden und ein gestrichelt angedeutetes Viereck 21 aufspannen. Im gezeigten Ausführungsbeispiel verlaufen die Schneiden 9, 10 und die Montagekanten 11, 12 sowie die dadurch definierten Linien 17, 18, 19, 20 geradlinig. Es kann auch ein leicht gekrümmter Verlauf vorgesehen sein. Das aufgespannte Viereck 21 ist im gezeigten Ausführungsbeispiel ein Parallelogramm. Es kann auch eine Rauten- Trapez- oder andere Viereckform und insbesondere auch ein unregelmäßiges Viereck vorgesehen sein.Through the two
Im Bereich des Eckpunktes 15, in dem die beiden Schneiden 9, 10 aufeinanderlaufen, ist eine geschärfte Fase 34 angeordnet, um eine Spitzenbelastung der Schneiden 9, 10 im Bereich des Eckpunktes 15 zu vermeiden. Diagonal gegenüberliegend treffen sich die beiden Montagekanten 11, 12 in einem scharfkantigen Winkel am Eckpunkt 13.In the region of the
Im Bereich des Eckpunktes 16, der durch das Aufeinandertreffen der Linien 19, 20 der seitlichen Schneide 10 und der unteren Montagekante 12 gebildet ist, ist die seitliche Schneide 10 mit einer Aussparung 26 versehen. Im gezeigten Ausführungsbeispiel sind durch die Aussparung 26 zwei konvex zueinander angeordnete, geradlinig verlaufende zusätzliche Kanten 22, 23 des Schneidmessers 6 gebildet. Durch die Aussparung 26 sind die seitliche Schneide 10 und die untere Montagekante 12 jeweils bezogen auf den Eckpunkt 16 verkürzt ausgebildet, wodurch der Eckpunkt 16 aus der Kontur der Schneide 6 ausgespart ist. Die Aussparung 26 liegt in axialer Richtung außerhalb der Befestigungsfläche 28 und grenzt im gezeigten Ausführungsbeispiel mit der zusätzlichen Kante 23 direkt an die Befestigungsfläche 28 an.In the region of the
Das Vorgenannte gilt in analoger Weise auch für eine Aussparung 27 des Schneidmessers 6, die im Bereich des diagonal gegenüberliegenden Eckpunktes 14 angeordnet ist. In diesem Eckpunkt 14 laufen die Linie 18 der umfangsseitigen Schneide 9 und die Linie 17 der axial inneren Montagekante 11 zusammen. Dem entsprechend sind die umfangsseitige Schneide 9 und die zugeordnete Montagekante 11 bezogen auf den angrenzenden Eckpunkt 14 verkürzt ausgebildet. Auch hier ist die Aussparung 27 durch zwei konvex zueinander angeordnete, geradlinig verlaufende zusätzliche Kanten 24, 25 gebildet, wodurch der Eckpunkt 14 aus der Kontur des Schneidmessers 6 ausgespart ist. Die Aussparung 27 liegt in radialer Richtung außerhalb der Befestigungsfläche 28, wobei das an die Montagekante 11 angrenzende Ende der zusätzlichen Kante 25 auch an die Befestigungsfläche 28 angrenzt. Anstelle der hier gezeigten geradlinigen zusätzlichen Kanten 22, 23, 24, 25 können auch zusätzliche Kanten mit geschwungenem Verlauf oder dgl. zweckmäßig sein.The above applies analogously to a
Die Verkürzung der Schneiden 9, 10 und der Montagekanten 11, 12 gegenüber der Länge der zugeordneten Linien 17, 18, 19, 20 liegt vorteilhaft im Bereich von einschließlich einem Viertel bis einschließlich ein Halb und beträgt im gezeigten Ausführungsbeispiel jeweils etwa ein Drittel.The shortening of the
Es ist zu erkennen, daß die Schneiden 6, 7 in der Drehrichtung 36 stirnseitig bzw. auf der Vorderseite der zugeordneten Messerträger 4, 5 angeordnet sind. Die Messerträger 4, 5 weisen zur Lagejustierung der Schneidmesser 6, 7 etwa in der Achsrichtung 38 verlaufende, im Querschnitt etwa L-förmige Aussparungen auf, die hier nicht näher dargestellt sind und in die die Schneidmesser 6, 7 eingesetzt sind. Durch die L-förmigen Aussparungen sind die Schneidmesser 6, 7 in radialer Richtung und in der Drehrichtung 36 fixiert. Im noch nicht verlöteten Zustand sind sie in der Achsrichtung 38 verschiebbar. Zur Lagejustierung der Schneidmesser 6, 7 in der Achsrichtung 38 vor und während dem Verlöten weisen die Messerträger 4, 5 auf ihrer der Trennebene 41 (
Zur Verdeutlichung des vereinfachten Nachschärf- und Einpaßvorganges sind in den
Strichpunktierte Schärflinien 39 geben die Lage und den Verlauf der Schneide 9 nach verschiedenen Schärfvorgängen an. Vergleichbares gilt für strichpunktiert angedeutete Schärflinien 40, die die Lage und den Verlauf der seitlichen Schneide 10 nach verschiedenen Schärfvorgängen angibt. Die höher belastete umfangsseitige, radial äußere Schneide 9 wird beim Nachschärfen stärker bearbeitet als die seitliche Schneide 10, wie sich aus dem etwa doppelt so großen Abstand der Schärflinien 39 zueinander im Vergleich zum Abstand der Schärflinien 40 ergibt. Das beim Schärfvorgang abzutragende Materialvolumen des Schneidmessers 6 ergibt sich aus der Länge der jeweiligen Schärflinie 39, die in einer Richtung durch den Schnittpunkt mit einer zugeordneten Schärflinie 40 und in der Gegenrichtung durch den Schnittpunkt mit der zusätzlichen Kante 24 oder der zusätzlichen Kante 25 begrenzt ist. Es ist deutlich zu erkennen, daß die Länge der Schärflinien 39 durch die Aussparung 27 gegenüber der Kontur des Vierecks 21 (
Vergleichbares gilt auch für den Nachschärf- bzw. Einpaßaufwand im Bereich der seitlichen Schneide 10, bei dem die Schärflinien 40 in der radialen Richtung einerseits durch den Schnittpunkt mit den zugeordneten Schärflinien 39 und in Gegenrichtung durch die zusätzliche Kante 22 begrenzt sind. Auch hier kann ein Verlauf der Schärflinien 40 weitergehend durch die zusätzliche Kante 23 vorgesehen sein. Wegen der im Vergleich zur Schneide 9 geringeren Belastung der seitlichen Schneide 10 ist beim Nachschärfen nur ein geringerer Materialabtrag vorgesehen, wie sich aus dem halb so großen Abstand der Schärflinien 40 zueinander im Vergleich zu den Schärflinien 39 ergibt.The same applies to the Nachschärf- or Einpaßaufwand in the
Der besseren Übersichtlichkeit halber sind hier bezogen auf die Darstellung nach
Die
In dem in
Die in den
Claims (10)
- Cutting tool, in particular for machining materials such as wood, with a supporting body (1) in the form of an approximately circular disc that is driven in rotation about an axis (32), around the circumference of which are arranged a number of cutting teeth (2, 3) that comprise blade carriers (4, 5) with cutting blades (6, 7) formed as separate components fixed thereto, such that in each case part of the cutting blade (6, 7) is formed as a parting and chip-forming cutting blade, and such that at least one structure of the cutting blade (6, 7) comprises a cutting edge (8, 9) on the circumferential side, a lateral edge (10) on one side that projects axially over the supporting body (1) and two mounting edges (11, 12) opposite the respective cutting edges (8, 9, 10), which in a plan view of the front of the cutting blade (6, 7) describe a rectangle (21) with four lines (17, 18, 19, 20) that extend along the cutting edges (8, 9, 10) and mounting edges (11, 12) and meet at four corner points (13, 14, 15, 16),
characterised in that at least one of the two cutting edges (9, 10) and in particular the lateral cutting edge (10) has in the area of the respective corner point (14, 16) associated with the adjoining mounting edge (11, 12) a notch (26, 27) that cuts away the said corner point (14, 16) and forms there at least one additional edge (22, 23, 24, 25). - Cutting tool according to Claim 1,
characterised in that each of the two cutting edges (9, 10) of the cutting blade (6, 7) is provided with a respective notch (26, 27). - Cutting tool according to Claims 1 or 2,
characterised in that the said notch (26, 27) is located outside a fixing surface (28, 29) of the blade carrier (4, 5) and, in particular, is adjacent to the fixing surface (28, 29). - Cutting tool according to any of Claims 1 to 3,
characterised in that the notch (26, 27) is formed by a single, in particular rectilinear additional edge (23, 25). - Cutting tool according to any of Claims 1 to 3,
characterised in that the notch (26, 27) is formed by two additional edges (22, 23, 24, 25), in particular rectilinear ones, arranged convexly relative to one another. - Cutting tool according to any of Claims 1 to 5,
characterised in that the cutting blade (6) provided with the notch (26, 27) is the parting cutting blade. - Cutting tool according to any of Claims 1 to 6,
characterised in that the cutting blade (7) provided with the notch (26, 27) is the chip-forming cutting blade, which in its axially lateral area is formed as a parting cutting blade. - Cutting tool according to any of Claims 1 to 7,
characterised in that the additional edge (23) located in the area of the lateral cutting edge (10) is aligned with a reference surface (35) of the supporting body (1). - Cutting tool according to Claim 8,
characterised in that the reference surface (35) and the additional edge (23) aligned therewith are at least approximately parallel to a plane (33) of the supporting body (1). - Cutting tool according to Claims 8 or 9,
characterised in that in relation to an intended rotation direction (36) of the cutting tool, the said reference surface (35) is located behind the said additional edge (23) aligned therewith.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK05020524T DK1767318T3 (en) | 2005-09-21 | 2005-09-21 | Chipping tools |
DE502005003117T DE502005003117D1 (en) | 2005-09-21 | 2005-09-21 | cutting tool |
ES05020524T ES2303165T3 (en) | 2005-09-21 | 2005-09-21 | VIRUTA STARTING TOOL. |
EP05020524A EP1767318B1 (en) | 2005-09-21 | 2005-09-21 | Chip removing cutting tool |
PL05020524T PL1767318T3 (en) | 2005-09-21 | 2005-09-21 | Chip removing cutting tool |
AT05020524T ATE388002T1 (en) | 2005-09-21 | 2005-09-21 | CUTTING TOOL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05020524A EP1767318B1 (en) | 2005-09-21 | 2005-09-21 | Chip removing cutting tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1767318A1 EP1767318A1 (en) | 2007-03-28 |
EP1767318B1 true EP1767318B1 (en) | 2008-03-05 |
Family
ID=35892458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05020524A Active EP1767318B1 (en) | 2005-09-21 | 2005-09-21 | Chip removing cutting tool |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1767318B1 (en) |
AT (1) | ATE388002T1 (en) |
DE (1) | DE502005003117D1 (en) |
DK (1) | DK1767318T3 (en) |
ES (1) | ES2303165T3 (en) |
PL (1) | PL1767318T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104354196B (en) * | 2014-10-30 | 2016-06-08 | 安吉县孝丰天友竹木机械制造厂 | Bamboo sheet cracks cutter and working method thereof |
CN104369242A (en) * | 2014-11-11 | 2015-02-25 | 蓝帜(南京)工具有限公司 | Novel disc type milling tool for tree lace processing of wood |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9212980U1 (en) * | 1992-09-29 | 1992-12-10 | Ledermann GmbH, 7240 Horb | Tool for milling grooves or rebates |
DE10107881A1 (en) * | 2001-02-20 | 2002-09-05 | Leitz Gmbh & Co Kg Geb | Wood machining tool has several circumferentially spaced pre-cutting and secondary cutting blades with dedicated chipping spaces of different volumes for faster removal of chippings |
DE20307474U1 (en) * | 2003-05-14 | 2004-09-16 | Ledermann Gmbh | Circular milling tool for wood, chipboard, plastic or similar has angled teeth overhanging a cut out section |
-
2005
- 2005-09-21 AT AT05020524T patent/ATE388002T1/en active
- 2005-09-21 ES ES05020524T patent/ES2303165T3/en active Active
- 2005-09-21 PL PL05020524T patent/PL1767318T3/en unknown
- 2005-09-21 EP EP05020524A patent/EP1767318B1/en active Active
- 2005-09-21 DE DE502005003117T patent/DE502005003117D1/en active Active
- 2005-09-21 DK DK05020524T patent/DK1767318T3/en active
Also Published As
Publication number | Publication date |
---|---|
ATE388002T1 (en) | 2008-03-15 |
ES2303165T3 (en) | 2008-08-01 |
DK1767318T3 (en) | 2008-06-30 |
PL1767318T3 (en) | 2008-08-29 |
EP1767318A1 (en) | 2007-03-28 |
DE502005003117D1 (en) | 2008-04-17 |
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