• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device (4) for cutting machining and with replaceable (2) rotating tools (1) cutting top part (3) and a holding tool body. The tool body (2) has a cylindrical receiving part. (5) provided with a number of substantially radial axes (6) and grooves (7} and the top part (3) has a pin-shaped connecting part (8) with suitable congruent grooves (9) and ridges (10), similar cogs or ridges and valleys of splines (Fig. 1)
    公开号:SE0950891A1
    申请号:SE0950891
    申请日:2009-11-24
    公开日:2011-05-25
    发明作者:Mattias Svensson
    申请人:Dof Tools Ab；
    IPC主号:
    专利说明:

    The present invention relates to a device for rotary tools for cutting machining and with replaceable cutting top part and a holding tool body. The invention is intended to be applied to rotary tools intended for cutting machining and with replaceable tip and with coupling for high loads.
    Similar such known products are used i.a. by: ~ Isoar who has a product called Cham-drill, from cza 1998.
    G Seco Tools AB which has a product called Crown ~ loc, also from cza l998.
    These said known products have a common disadvantage, namely that when large forces arise, these known tool bodies are unable to pour the top parts into place, which leads to breakdown, which in turn leads to the use of lower productivity parameters than would otherwise be the case.
    As an example of other known solutions, US 756,339 A1 shows a tool in the form of a divisible drill where the drill tip (B) can be screwed via threads to a rearly fitting drill body (A). Internal threads (4) are then arranged in the drill bit itself (B), which makes it difficult to manufacture with today's used cemented carbide tools.
    US 6,582, 164 B1 shows a drill with a screwdriver (10) (52) is screwable in a (14) This holding is achieved with a single rotating turn which drill tip has a radial thread of drill holder and its internal fitting radial thread. seems to be very weak.
    US 2008/0193237 A1 shows holding according to the above types from Isoar and US 2001/0041089 A1 and U1110 WO 03 / Ü68436 A1 respectively show tool fastening by means of threaded joints. The same disadvantages as stated also apply to these.
    The main purpose of the present patent application is thus to provide a device which solves e.g. the above-mentioned problems, and which due to their unique connection resist the higher cutting forces, mainly in the form of torques, which arise during cutting machining, when the highest possible productivity is to be achieved, in the form of high felling speed.
    Said object is achieved by means of a device according to the present invention, which can essentially be characterized in that the tool body has a non-cylindrical receiving part provided with a number of substantially radial axes and grooves and that the top part has a pin-shaped connecting part with suitable congruent grooves and ridges. similar cogs or ridges and valleys of splines.
    The invention is described in the following with reference to the accompanying drawings as a preferred embodiment, in which Fig. 1 shows an exploded view of a rotating tool with its cutting top part and its rotating tool body separated from each other in perspective, Fig. 2 shows the top part in perspective Fig. 3 shows a side view of a tool body, Fig. 4 shows an end view of the tool body, Fig. 5 shows a sectional view of a tool body, Figs. 6 and 7 show examples of holding elements at the coupling sand for a top part, Figs. 8-9 show side view and end view, respectively, of a top part, Fig. 10 shows a side view of the top part and Fig. 11 shows a sectional view along the line XI-X1 in Fig. 1G. A rotating tool 1 according to the present invention normally consists of two main parts 2, 3, namely a tool body 2, which is preferably made of metal or of another material which has good strength, and a cutting replaceable top part 3, which likewise is preferably made of metal or of another material with good wear resistance, for example cemented carbide.
    The tool body is connected with its shaft part to holding tools, which are found in various embodiments, of which a cylindrical shaft is common.
    The part of the tool body that is closest to the shaft part, the chip transport part, is designed to provide a stand for the top part, without constituting an obstacle for chips created at the cutting edges and to create a desired distance between the part being processed and the holding tool, e.g. a drill hook, a milling head, a turret, etc.
    The connecting part of the tool body is designed as a cylindrical recess, with spirally rotated axes, designed to give the connection self-locking properties, which occurs when the tool is in friction, when the cutting edges are loaded, which prevents the top part from coming loose from its attachment. By positioning the front of the ridges at an angle, relative to a tangent plane for the cylindrical segment of the connection, which is less than 90 °, a locking effect arises in the radial direction between the tool body and the top part.
    In short, the tool body 2 has a cylindrical receiving part with suitable radial grooves and the top part 3, i.e. the tool has a pin-shaped connecting part with suitable radial grooves, similar to cogs or ridges and valleys of splines.
    More particularly, the invention relates to a device for providing 4 in a rotating tool 1 which is intended for cutting machining, such as drilling, milling, etc. and which comprises a replaceable top part 3 provided with cutters and a said top part 3 holding tool body 2.
    According to the invention, said tool body 2 has a cylindrical receiving part 5 which is provided with a number of substantially radial ridges 6 and grooves 7. The top part 3 has a pin-shaped connecting part 8 which is provided with a number of mating congruent grooves 9 and ridges 10, similar teeth or ridges and valleys at splines.
    De sagda àsarna 6; 10 and tracks 7; 9 is preferably slightly helically twisted and that the connection between grooves and ridges of interconnected top part 3 with tool body 2 in engaging position is self-locking.
    The spiral of the said ridges, seen in the direction from the end plane 11 of the tool body 2, is rotated in the clockwise direction 13, whereby an increased friction occurs when the cutting edges 12 of the top part 3 are loaded during machining with the tool 1 in said direction 13.
    Furthermore, the front of the ridges, seen in the direction of rotation 13 during machining, is positioned at an angle, relative to a tangent plane of the cylindrical segment of the connection, which is less than 9 °, whereby a locking effect occurs in radial direction between the tool body 2 and the top part 3. , seen in the direction of rotation 13 during machining, is inclined at an obtuse angle, preferably cza l35 ° - Furthermore, both top part 3 and tool body 2 are provided with helically twisted chip space parts 14, lo. which enable efficient removal of machined material from the relevant working place for the tool in question, t. ex. at a borehole or at a milling workplace.
    Both the top part 3 and the tool body 2 are provided with cooling channels 16, 17 in order to make it possible to efficiently process the material without damage to the same and to the tool 1, by continuous supply of suitable coolant e.g. of known type from a pump plant not shown. Finally, holding elements 18, 19 between the top part 3 and the receiving connecting part 5 of the tool body 2 are arranged to releasably hold the top part in place in the tool body in the axial direction 20. Such holding elements 18, 19 are formed by e.g. a number of hooks 19 and recesses 18 and which hook 19 is resilient to be moved between a remote position from the recess 18, and a received position in the recess 18, respectively.
    When mounting and connecting the tool 1, the connecting part in the tool body is pulled apart, preferably by means of a special tool which ties apart the resilient cates 21 of the tool body 2. When they are released again, the top part 3, which in the example shown is formed by means of the hooks 19 received in a suitable recess 18 on the inner part 8A of the top part 3 of its cylindrical pin-shaped connecting part 8, so that the parts 2, 3 are hooked into each other and effectively held to each other in the axial direction 20. Disconnection takes place in the opposite described rules of procedure.
    The nature and function of the invention should have been understood from what has been described above and what is shown in the drawings.
    The invention is of course not limited to the embodiments described above and shown in the accompanying drawings. Modifications are possible, in particular as regards the nature of the various parts, or by the use of equivalent technology, without departing from the scope of the invention as defined in the claims.
    权利要求:
    Claims (10)
    [1]
    Device (4) with rotating tool (1) for cutting machining and with replaceable cutting top part (3) and a holding tool body, characterized in that the tool body (2) has an cylindrical receiving part (5) provided with a number of substantially radial ridges (6) and grooves ( ) and that the top part (3) has a pin-shaped connecting part (8) with mating congruent grooves (9) and ridges (10), similar to cogs or ridges and valleys of splines.
    [2]
    Device according to Claim 1, characterized in that the ridges (6, 10) and the grooves (7, 9) are helically twisted.
    [3]
    Device according to Claim 2, characterized in that the connection between grooves (7, 9) and axes (6, 10) of the interconnected top part (3) with the tool body (2) in the engaging layer is self-locking.
    [4]
    Device according to claim 3, characterized in that the spiral of the ridges, seen from the end plane (11) of the tool body (2), is rotated clockwise (13), whereby an increased friction occurs when the cutting edges (12) of the top part (3) are loaded. .
    [5]
    Device according to claim 4, characterized in that the front of the shafts, seen in the direction of rotation (13) during machining, are positioned at an angle, relative to a tangent plane of the cylindrical segment of the connection, which is less than 90 °, whereby a locking effect occurs in radial direction between the tool body (2) and the top part (3). LI! 10 25
    [6]
    Device according to claim 1, characterized in that the back of said ridges, seen in the direction of rotation (13), preferably oza during processing, is inclined at an obtuse angle, 135 °.
    [7]
    Device according to one of the preceding claims, characterized in that both the top part (3) and the tool body (2) are provided with spirally rotated clamping space parts (14, 15).
    [8]
    Device according to Claim 7, characterized in that both the top part (3) and the tool body (2) are provided with cooling channels (16, 17).
    [9]
    Device according to one of the preceding claims, characterized in that holding elements (18, 19) between the top part (3) and the connecting part (5) of the tool body (2) are arranged to releasably hold the top part (3) in place in the tool body. (2).
    [10]
    Device according to claim 9, characterized (18), formed by a number (19) thereof, that the holding element (19) (18) is movable between a remote position from the recess (18) hooks and recesses and which hook is a spring - or a received position in the recess (18).
    类似技术:
    公开号 | 公开日 | 专利标题
    JP5101515B2|2012-12-19|Rotary cutting tool
    SE0950891A1|2011-05-25|Device for tools
    JP2019063994A|2019-04-25|Coupling mechanism for cutting tool
    JP5967583B2|2016-08-10|Milling tools
    SE516524C2|2002-01-22|Utilities Connection
    CN105735909B|2018-12-18|Drill string components resistant to jamming
    SE535941C2|2013-02-26|Milling tools for hobbing and segments for this
    EP2164666B1|2021-10-13|Multi-piece tool assembly and cutting tool
    JP2013233648A5|2015-12-24|
    US9108251B2|2015-08-18|Cutting tool having replaceable cutting tip, a replaceable cutting tip therefore and a method of securing a replaceable cutting tip
    JP5731643B2|2015-06-10|Insertable rotary tool
    WO2009059576A3|2009-09-03|Rotating shaft tool, in particular multi-stage reamer
    US20160031017A1|2016-02-04|Tool bit holder for power tool
    US9669470B2|2017-06-06|Clamping device
    EP2070617B1|2011-04-06|A basic body for tools for chip removing machining
    US20150330434A1|2015-11-19|Fixation arrangement as well as an interchangeable part and a lock key
    JPH0669643B2|1994-09-07|Joint
    US9089911B2|2015-07-28|Side milling arbor with quad drive key assist
    RU176314U1|2018-01-16|TERMINAL CUTTER MILLING COMPONENT
    EP1445050A1|2004-08-11|Tool Adapter
    CN104439346B|2019-04-30|Boring cutter bar floating clamp
    JP6776255B2|2020-10-28|Drill and reamer tool connection arrangement
    US20210220922A1|2021-07-22|Threaded bit adapters
    JP6964145B2|2021-11-10|How to make T-shaped tools and T-shaped tools
    SK8086Y1|2018-05-02|Machine tool with replaceable cutting bits
    同族专利:
    公开号 | 公开日
    SE535180C2|2012-05-08|
    WO2011065901A1|2011-06-03|
    EP2504119A1|2012-10-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    IL136032A|2000-05-09|2003-12-10|Iscar Ltd|Tool joint|
    DE10205635B4|2002-02-12|2005-12-08|Stephan Schymonski|connection tool|
    US6582164B1|2002-02-25|2003-06-24|Kennametal Inc.|Roller twist drill|
    IL181296D0|2007-02-12|2007-07-04|Iscar Ltd|Tool with releasably mounted self-clamping cutting head|US8931982B2|2009-12-08|2015-01-13|Osg Corporation|Throw-away rotating tool|
    DE102011106416A1|2011-07-02|2013-01-03|Kennametal Inc.|Drilling reaming tool|
    CN102380651A|2011-10-13|2012-03-21|东阳市速博数控刀具有限公司|Milling cutter for cutting carbide alloy with high speed|
    DE102011086422B4|2011-11-15|2014-04-24|Kennametal Inc.|Method for producing a tool, and such a tool|
    DE102012212146A1|2012-07-11|2014-01-16|Kennametal Inc.|Clutch point for a modular rotary tool and tool head and support for such a modular rotary tool|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE0950891A|SE535180C2|2009-11-24|2009-11-24|Rotary tool coupling|SE0950891A| SE535180C2|2009-11-24|2009-11-24|Rotary tool coupling|
    PCT/SE2010/051287| WO2011065901A1|2009-11-24|2010-11-23|Device for connecting a replaceable cutting top part to a tool body|
    EP10833666A| EP2504119A1|2009-11-24|2010-11-23|Device for connecting a replaceable cutting top part to a tool body|
    [返回顶部]