WO2011060978A1 - Sägewerkzeug für eine werkzeugmaschine - Google Patents
Sägewerkzeug für eine werkzeugmaschine Download PDFInfo
- Publication number
- WO2011060978A1 WO2011060978A1 PCT/EP2010/063902 EP2010063902W WO2011060978A1 WO 2011060978 A1 WO2011060978 A1 WO 2011060978A1 EP 2010063902 W EP2010063902 W EP 2010063902W WO 2011060978 A1 WO2011060978 A1 WO 2011060978A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tooth
- sawtooth
- sawing tool
- saw
- tool according
- Prior art date
Links
Classifications
-
- 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
- B23D61/12—Straight saw blades; Strap saw blades
- B23D61/121—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
-
- 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
- B23D61/006—Oscillating saw blades
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/896—Having product-receiving chamber
- Y10T408/8973—Having product-receiving chamber and central lead
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9319—Toothed blade or tooth therefor
- Y10T83/9346—Uniformly varying teeth or tooth spacing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9319—Toothed blade or tooth therefor
- Y10T83/935—Plural tooth groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9319—Toothed blade or tooth therefor
- Y10T83/935—Plural tooth groups
- Y10T83/9353—Including raker tooth group
Definitions
- the invention relates to a sawing tool for a machine tool, in particular for a hand tool, according to the preamble of claim 1.
- EP 1 228 829 A1 describes a hole saw with a cylindrical drill body and a center drill guided in the drill body, with which a drill core can be sawed out of a workpiece to be machined.
- the cylindrical drill body has on its front side cutting teeth, which are partially provided with and partially without a Schränkung. In the circumferential direction of the drill body each form three immediately successive Schneide standing. Saw teeth without setting and two adjoining incisors with opposite setting angle a continuous sesge leopard wedding. Over the circumference of the front side a plurality of such, each of the same trained pubge leopardmaschine are arranged.
- the invention has the object of providing a sawing tool for a machine tool with simple measures so that on the one hand is given clean saw edge on the workpiece to be machined and on the other hand during the processing of a hooking of the sawing tool is counteracted in the workpiece. This object is achieved with the features of claim 1.
- the dependent claims indicate expedient developments.
- the sawing tool according to the invention is used in machine tools, in particular in hand-operated machine tools, preferably in motor-operated machine tools which have, for example, an electric motor as the drive motor.
- the sawing tool has cutting edges or saw teeth on a machining side, whereby different types of sawing tools are possible depending on the intended use.
- the sawing tool is, for example, a cylindrical drill body which is used in a hole saw. In principle, however, is also an embodiment of the sawing tool as
- the sawing tool which is used for example in oscillating cutting or sawing machines and which is for example a stitch or saber saw blade.
- the sawing tool according to the invention has at least two sawtooth sequences, each having a plurality of saw teeth on the machining side, wherein the rack and the rack are constructed identical to each other. Between two successive sawtooth sequences is a tooth-free chip space, which serves for receiving or for discharging chips or chip dust, which or which arises during workpiece machining.
- the chip space increases the direct removal of the chips from the cutting area and thereby reduces the clogging of the row of teeth.
- the chip removal is further improved by the fact that the first sawtooth of a sawtooth sequence which is directly adjacent to a chip space and which is located inside the chip space
- Saw tooth sequence in the machine direction has a different from the other saw teeth of this minegeffy customized tooth geometry.
- the different tooth geometry of the first saw tooth of the other saw teeth per sesgeffy foundation can on the one hand make the setting, on the other hand, the tooth shape and the position of the saw teeth to each other or related to the machining side.
- the first sawtooth is not restricted, whereas the subsequent sawteeth have a setback.
- the unrestrained first tooth also improves the removal of chips from the cutting area, thus reducing the risk of clogging the row of teeth. A hooking of the sawing tool in the usually made of metal workpiece is counteracted by these measures.
- Saw tooth has at least partially a negative rake angle, in particular in a tooth base adjacent portion, whereas the tooth face of the first saw tooth in a portion extending to the tooth tip, may have a positive rake angle.
- This embodiment of the first saw tooth per solge leopard merge has the advantage that in sheet metal processing, the sheet edge is derived from the chip space and thus can not penetrate into the chip space or tilt in this. As a result, the risk of hooking the sheet edge in the chip space and concomitantly jamming of the machine tool is reduced. This effect is also supported by the fact that, unlike the first sawtooth, the following saw teeth are each made without negative rake angles, but rather have a positive rake angle from the tooth tip to the tooth root.
- tooth face of the first saw tooth in the region of the tooth base may be advantageous to provide with two different, mutually angled portions, each having a negative rake angle, but which differs in magnitude.
- the first sawtooth with respect to its position relative to the machining side or parallel to the machining side of the different saw teeth.
- the first sawtooth is set deeper, in particular with respect to the other, subsequent saw teeth of his sapberg foundation, which also reduces the risk of hooking is reduced.
- the saw teeth following the first saw tooth each have an opposing setback.
- the sawing tool as a cylindrical drill body for a hole saw
- This embodiment has the advantage that the outer diameter of the sawn core is reduced compared to the inner diameter of the cylindrical drill body, so that after the workpiece machining between the lateral surface of the core and the inside of the drill body, there is an air gap and the sawn core easily removed from the interior of the drill body can be.
- Fig. 5 is a perspective view of a cylindrical drill body in one
- Hole saw which in its free front side saw teeth for sawing a drill core is provided and having on the inside an axially extending cutting body with a radially inwardly offset cutting edge.
- the same components are provided with the same reference numerals.
- a sawing tool 1 is shown, which is designed for example as a cylindrical drill body for a hole saw or as a saw blade.
- the sawing tool 1 has a machining side 2, are arranged on the cutting or saw teeth 3.
- the saw teeth 3 are combined into sawtooth sequences 20, which are arranged lying one behind the other and each comprise a plurality of individual saw teeth 3, wherein in the exemplary embodiment 20 saw teeth 3a to 3d are included per saw tooth sequence.
- the saw teeth 3a to 3d within each sawtooth sequence 20 have a defined tooth geometry, which improve the chip removal and the sectional image.
- the first sawtooth 3a in the machine direction which is located immediately adjacent to a leading chip space 21, differs in terms of its
- Fig. 2 is shown in an enlarged detail of the first, the chip space 21 immediately following sawtooth 3a and the subsequent second sawtooth 3b a common sesge leopard stone.
- the first sawtooth 3a is placed lower in relation to the machining side or a plane parallel to the machining side with respect to the succeeding sawtooth 3b by the amount a, so that the sawtooth tip of the first sawtooth 3a protrudes less far outward than the saw tooth tip of the succeeding sawtooth 3b.
- all the saw teeth following the first saw tooth are with their
- the tooth face of the first saw tooth 3a is designed differently with respect to the other saw teeth.
- the breast of the first sawtooth 3a has between the tooth tip and the transition to the chip space 21 three at least approximately straight sections or edges A, B and C, the because compared to a vertical 22 to the machining side and the machining direction have a different rake angle ⁇ , y 2 and ⁇ 3 .
- the top edge A which extends from the tooth tip in the direction of tooth root or chip space 21, has a positive rake angle ⁇ , which is suitably in a range of values up to 20 ° and, for example, 10 °.
- the adjoining further edges B and C have a negative rake angle ⁇ 2 or ⁇ 3 , wherein the rake angle ⁇ 2 of the middle edge B expediently likewise lies in a value range up to 20 ° and is preferably 5 °, whereas the rake angle ⁇ 3 the lowest lying edge C is greater than ⁇ 2 and, for example, 45 °.
- the tip of the first saw tooth 3a is set lower by the amount a than the tip of the succeeding saw tooth 3b as well as all other saw teeth of this tooth sequence.
- the vertical extension of the edges A, B and C is denoted by b, c and d, respectively; projected onto the vertical 22, the extensions b, c and d are at least approximately the same size.
- the lowering of the first sawtooth 3a by the amount a is on the order of 0.5 mm, for example 0.3 mm.
- the projected into the vertical length of the first edge A and the second, middle edge B is in each case in a range of values up to 0.5 mm and is for example 0.3 mm.
- the projected to the vertical length d of the lowest edge C is in a range of values up to 0.8 mm and is for example 0.4 mm.
- Fig. 3 is a plan view of the machining side of a sawing tool 1 with a clarge leopard foundation 20, consisting of four saw teeth 3a to 3d shown.
- the first sawtooth 3a is rectilinear, that is, it has no counterbore, whereas the other sawtooths 3b, 3c, and 3d each have a set of teeth, alternately in opposite directions.
- the following saw teeth have only a positive rake angle, but no negative rake angle. This is illustrated by way of example in FIG. 2 on the basis of the second saw tooth 3b, which is provided with the positive rake angle ⁇ 4 , which extends from the tooth tip to the transition into the tooth base 23 at the rectilinear edge on the tooth face. All saw teeth of a sequence of teeth following the first saw tooth can have the same positive rake angle In principle, different, positive rake angles are possible.
- the rake angle ⁇ 4 of the following teeth can be the same size as the positive rake angle ⁇ of the first saw tooth 3a or differ from it, ie either smaller or larger than the positive rake angle of the first sawtooth.
- a cylindrical or cup-shaped drill body 1 is shown as a sawing tool, which is used in a hole saw for sawing a drill core.
- the drill body 1 has at its free end face 2 on a series of cutting or saw teeth 3 only partially shown, which are executed in the manner described above with sawtooth sequences with intermediate chip space.
- On the inner side 6 of the cylindrical drill body 1 there is a cutting body 4 which extends over the axial length of the drill body 1 and is provided with a cutting edge 5 pointing radially inwards.
- the cutting body 4 has a triangular cross section, wherein the radially inwardly pointing triangular tip forms the cutting edge 5.
- the cutting edge 5 extends to the free end face 2 of the drill body 1, however, the cutting body 4 expediently does not extend axially to the cutting teeth 3. In the circumferential direction, the cutting body 4 extends only over a narrow angular segment of, for example, a maximum of 5 °.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800524187A CN102665987A (zh) | 2009-11-20 | 2010-09-21 | 用于工具机的锯割工具 |
JP2012539240A JP2013511395A (ja) | 2009-11-20 | 2010-09-21 | 工作機械用の鋸工具 |
AU2010321185A AU2010321185A1 (en) | 2009-11-20 | 2010-09-21 | Saw tool for a machine tool |
US13/510,728 US20120230788A1 (en) | 2009-11-20 | 2010-09-21 | Saw tool for a machine tool |
EP10757085A EP2501512A1 (de) | 2009-11-20 | 2010-09-21 | Sägewerkzeug für eine werkzeugmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009046907.9 | 2009-11-20 | ||
DE102009046907A DE102009046907A1 (de) | 2009-11-20 | 2009-11-20 | Sägewerkzeug für eine Werkzeugmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011060978A1 true WO2011060978A1 (de) | 2011-05-26 |
Family
ID=43127467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/063902 WO2011060978A1 (de) | 2009-11-20 | 2010-09-21 | Sägewerkzeug für eine werkzeugmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US20120230788A1 (de) |
EP (1) | EP2501512A1 (de) |
JP (1) | JP2013511395A (de) |
CN (1) | CN102665987A (de) |
AU (1) | AU2010321185A1 (de) |
DE (1) | DE102009046907A1 (de) |
TW (1) | TW201127522A (de) |
WO (1) | WO2011060978A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020114613A (ja) * | 2019-01-18 | 2020-07-30 | 株式会社ミラノ製作所 | コアドリルビット |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012205041A1 (de) * | 2012-03-29 | 2013-10-02 | Robert Bosch Gmbh | Sägewerkzeug für eine Werkzeugmaschine |
US9597736B2 (en) | 2013-12-19 | 2017-03-21 | Milwaukee Electric Tool Corporation | Adjustable diameter hole cutter |
US9782840B2 (en) * | 2014-07-01 | 2017-10-10 | James Edwin Funk | Safety drilling tool |
DE102014111347A1 (de) | 2014-08-08 | 2016-02-25 | Wolfcraft Gmbh | Lochsäge |
US20160158858A1 (en) | 2014-12-08 | 2016-06-09 | Irwin Industrial Tool Company | Recip blade |
CN107921655B (zh) * | 2015-08-26 | 2020-03-17 | Um工业株式会社 | 手锯 |
US10384273B2 (en) * | 2016-08-24 | 2019-08-20 | The M.K. Morse Company | Hole saw |
US10940546B2 (en) * | 2016-04-19 | 2021-03-09 | The M.K. Morse Company | Ground set hole saw |
US10166612B2 (en) | 2016-08-26 | 2019-01-01 | Irwin Industrial Tool Company | Tooth formations and arrangement for a saw blade |
US9975192B2 (en) * | 2016-08-30 | 2018-05-22 | Simonds International L.L.C. | Systems and methods for milling saw blade tooth profiles and saw blades with milled tooth profiles |
EP3354385B1 (de) | 2017-01-06 | 2020-05-27 | Milwaukee Electric Tool Corporation | Lochsäge |
USD973733S1 (en) | 2017-08-15 | 2022-12-27 | Milwaukee Electric Tool Corporation | Hole saw |
US10537951B2 (en) | 2017-08-16 | 2020-01-21 | Black & Decker Inc. | Band saw blade for cutting structural workpieces |
CN109227822A (zh) * | 2018-10-19 | 2019-01-18 | 大连金河精密工具有限公司 | 单片圆筒刀 |
CN109262770A (zh) * | 2018-10-19 | 2019-01-25 | 大连金河精密工具有限公司 | 双槽式圆筒刀 |
US11440111B2 (en) * | 2020-08-17 | 2022-09-13 | Bmic Llc | Method of using a blade configured to reduce residual foam dust |
US20220402052A1 (en) * | 2021-06-21 | 2022-12-22 | Milwaukee Electric Tool Corporation | Saw blade |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
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DE204677C (de) | ||||
GB104800A (en) | 1916-06-09 | 1917-03-22 | Joseph Fletcher | Improved Bit for Cutting Circular Apertures in Wooden Cases, Casks and the like. |
US2412433A (en) | 1944-09-08 | 1946-12-10 | Andrew B Taylor | Cutter for ring grooving cutter heads |
DE887701C (de) | 1951-07-27 | 1953-08-27 | Georg Welter | Kreissaegenblatt mit gruppenweise angeordneten Zaehnen |
FR1222577A (fr) | 1959-01-02 | 1960-06-10 | Lame de scie à ruban avec pont de dégagement | |
FR1257102A (fr) | 1960-02-16 | 1961-03-31 | Dispositif automatique pour le ramassage et la manutention des fanes de betteraves et similaires | |
FR1258102A (fr) * | 1959-08-28 | 1961-04-07 | Perfectionnements aux rubans à dents pour scies à ruban | |
EP0231110A2 (de) | 1986-01-23 | 1987-08-05 | Tai-Her Yang | Sägeblätter |
EP1228829A1 (de) | 2001-02-06 | 2002-08-07 | Black & Decker Inc. | Lochsäge |
US6599063B1 (en) | 2002-08-31 | 2003-07-29 | Richard E. Capstran | Hole saw having efficient slug removal |
JP2004098273A (ja) | 2002-07-19 | 2004-04-02 | Amada Co Ltd | 鋸刃 |
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JP2005349512A (ja) * | 2004-06-09 | 2005-12-22 | Nachi Fujikoshi Corp | 鋸刃 |
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DE102012210164A1 (de) * | 2012-06-18 | 2013-12-19 | Robert Bosch Gmbh | Verfahren zum Herstellen eines Sägeblatts |
DE112013003582B4 (de) * | 2012-07-18 | 2022-08-11 | Milwaukee Electric Tool Corp. | Zahnform für ein Schneidwerkzeug, wie etwa eine Lochsäge |
-
2009
- 2009-11-20 DE DE102009046907A patent/DE102009046907A1/de not_active Withdrawn
-
2010
- 2010-09-21 EP EP10757085A patent/EP2501512A1/de not_active Withdrawn
- 2010-09-21 JP JP2012539240A patent/JP2013511395A/ja not_active Ceased
- 2010-09-21 WO PCT/EP2010/063902 patent/WO2011060978A1/de active Application Filing
- 2010-09-21 CN CN2010800524187A patent/CN102665987A/zh active Pending
- 2010-09-21 US US13/510,728 patent/US20120230788A1/en not_active Abandoned
- 2010-09-21 AU AU2010321185A patent/AU2010321185A1/en not_active Abandoned
- 2010-11-18 TW TW99139685A patent/TW201127522A/zh unknown
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE204677C (de) | ||||
GB104800A (en) | 1916-06-09 | 1917-03-22 | Joseph Fletcher | Improved Bit for Cutting Circular Apertures in Wooden Cases, Casks and the like. |
US2412433A (en) | 1944-09-08 | 1946-12-10 | Andrew B Taylor | Cutter for ring grooving cutter heads |
DE887701C (de) | 1951-07-27 | 1953-08-27 | Georg Welter | Kreissaegenblatt mit gruppenweise angeordneten Zaehnen |
FR1222577A (fr) | 1959-01-02 | 1960-06-10 | Lame de scie à ruban avec pont de dégagement | |
FR1258102A (fr) * | 1959-08-28 | 1961-04-07 | Perfectionnements aux rubans à dents pour scies à ruban | |
FR1257102A (fr) | 1960-02-16 | 1961-03-31 | Dispositif automatique pour le ramassage et la manutention des fanes de betteraves et similaires | |
EP0231110A2 (de) | 1986-01-23 | 1987-08-05 | Tai-Her Yang | Sägeblätter |
EP1228829A1 (de) | 2001-02-06 | 2002-08-07 | Black & Decker Inc. | Lochsäge |
JP2004098273A (ja) | 2002-07-19 | 2004-04-02 | Amada Co Ltd | 鋸刃 |
US6599063B1 (en) | 2002-08-31 | 2003-07-29 | Richard E. Capstran | Hole saw having efficient slug removal |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020114613A (ja) * | 2019-01-18 | 2020-07-30 | 株式会社ミラノ製作所 | コアドリルビット |
Also Published As
Publication number | Publication date |
---|---|
US20120230788A1 (en) | 2012-09-13 |
TW201127522A (en) | 2011-08-16 |
DE102009046907A1 (de) | 2011-05-26 |
CN102665987A (zh) | 2012-09-12 |
AU2010321185A1 (en) | 2012-02-02 |
EP2501512A1 (de) | 2012-09-26 |
JP2013511395A (ja) | 2013-04-04 |
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