• 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:
    Abstract The invention relates to a spindle (10) of a drilling tool of the type with a fluid conveyed through the interior of a drill bit to adrilling zone, which spindle (13) is drivable by a motor of thedrilling tool. The spindle comprises a socket portion (16) forreceiving and attaching a drill bit (20) to the spindle (10). A fluid conduit (11) (l6) is arranged for conveying a fluid to the socket portion(30)(20) and. an that is formed. between the fluid (ll) interface spaceand the drill bit(16). when the drill bit is installed in(40;50;60;70)to the drill bit conduitthe socket portion A fluid conveyor (ll) is arranged to connect the fluid conduit (20), the fluid conveyor having a diameter that is narrower than the diameter in avoid that fluid is(30) socket portion (16) so as to gathered in a periphery of the interface space between the fluid conduit (11) and the drill bit (20) (16). when the drill bit is installed in the socket portion (Elected for publication: Fig. 7)
    公开号:SE1551218A1
    申请号:SE1551218
    申请日:2015-09-22
    公开日:2017-03-23
    发明作者:Leander Andersson Patrik
    申请人:Atlas Copco Ind Technique Ab；
    IPC主号:
    专利说明:

    Power tool The invention relates to a spindle for a drilling tool, which spindleis motor driven and connectable to a drill bit of the type that isprovided with a fluid, e.g. for continuous cooling and/or lubrication, via the spindle and through its inside.Background When drilling is performed in hard materials and at high a speed it iscustomary to provide a fluid for cooling and/or lubrication through the drill bit. Such cooling and lubrication is important to guaranteethe quality of the drilling and to minimise the wear of the drilling equipment.
    One manner of achieving the cooling and lubrication in a pneumatictool is to utilise the pressurised air that is provided to the systemfor driving the motor to produce a mist or fluid from a combination ofpressurised air and a lubricator. Another conventional way is toprovide a cooling and/or lubrication fluid from an external system.Either way the cooling and/or lubrication fluid is provided throughthe rotating spindle and into the interior of the drill bit via an interface between the spindle and the drill bit.
    A problem with such internal fluid conduction is that it is difficultto control the well function of the cooling and/or lubrication duringan on-going drilling operation due to the fact that the front tip ofthe drill bit at which a mouth of the fluid conduction is hiddeninside the bore throughout the operation. Hence, the correct functionof the cooling and/or lubrication may only be controlled indirectly byinspection of the bore or by running the drill bit in an open spaceand/or by inspecting the drill hole after a concluded drilling operation.
    A problem that may occur with the fluid conduction is that the provision of fluid may vary over time, such that too much fluid isprovided at times and such that too little fluid is provided at othertimes. A typical problem is that a large amount of fluid is providedat start-up of the machine followed by a phase where too little fluidis provided. At the end of an operation the fluid provision normallyhas stabilised such that a desired amount of mist is provided through the drill bit.
    When too little fluid is provided the precision of the boring may beadventured and the drill bit and work piece may be over-heated. Toomuch fluid may also have a negative effect on the precision of theboring and further it implies that an excess of fluid will need to be washed away from the work piece.
    Hence, there is a need of a drilling tool that does not have the problems of unreliable fluid conduction known in the art.Summary of the invention An object of the invention is to provide a drilling tool with areliable and predictable provision lubrication and/or cooling fluid throughout the drilling operation.
    This object is achieved by the invention according to claim l, whichrelates to a spindle of a drilling tool of the type with a fluidconveyed through the interior of a drill bit to a drilling zone, whichspindle is drivable by a motor of the drilling tool, wherein thespindle comprises: - a socket portion for receiving and attaching a drill bit to thespindle, the socket portion having a first axial length of a firstdiameter adapted to receiving an attachment portion of the drill bit,- a fluid conduit for conveying a fluid to the socket portion, thefluid conduit having a second diameter which second diameter isnarrower than the first diameter of the socket portion, wherein the attachment portion has a specific second axial length adapted to be shorter than the specific axial length of the socket portion such thatan interface space having the first diameter is formed between thefluid conduit and the drill bit when the drill bit is installed in thesocket portion. A fluid conveyor is arranged to connect the fluidconduit to the drill bit, the fluid conveyor having a third diameterwhich is narrower than the first diameter, so as to avoid that fluidis gathered in a periphery of the interface space between the fluidconduit and the drill bit when the drill bit is installed in the socket portion.
    The invention is based on the insight that fluid is trapped in thespace between the drill bit and the spindle. The practical solution tothe phenomenon as presented by claim l appears obvious once this insight has been taken in.
    The invention also relates to a drilling tool of the type with a fluidconveyed through the interior of the drill bit to the drilling zone, which drilling tool comprises a spindle as described above.
    The invention further relates to a method of installing a drill bit ina spindle of a drilling tool, the spindle comprising: - a socket portion for receiving and attaching the drill bit to thespindle, the socket portion having a first axial length of a firstdiameter adapted to receiving an attachment portion of the drill bit, - an fluid conduit for conveying a fluid to an opening in the drillbit, the fluid conduit having a second diameter which second diameteris narrower than the first diameter of the socket portion, wherein theattachment portion has a specific second axial length that is shorterthan the specific axial length of the attachment portion such that aninterface space having the first diameter is formed between the fluidconduit and the drill bit when the drill bit is installed in thesocket portion. The method comprises the step of arranging a fluidconveyor to connect the fluid conduit to the opening in the drill bitbefore or simultaneously as the drill bit is installed, the fluid conveyor having a third diameter, which third diameter is narrower than the first diameter, so as to avoid that fluid is gathered in aperiphery of the interface space between the fluid conduit and the drill bit when the drill bit is installed in the socket portion.
    Other features and advantages of the invention will be apparent fromthe detailed description with reference to of the embodiments shown in the figures and from the dependent claims.Short description of the drawings In the following detailed description reference is made to the accompanying drawings, of which: Fig. 1 shows a typical spindle of the prior art with an installeddrill bit; Fig. 2 is a detailed view of an interface between the prior art spindle of fig. l and the installed drill bit; Fig. 3 shows a spindle with an installed drill bit and a fluid conduitaccording to a first embodiment of the invention arranged in the interface between the spindle and the drill bit; Fig. 4 is a detailed view of the interface between the spindle and the drill bit in fig. 3; Fig. 5 shows a spindle with an installed drill bit and a fluid conduitaccording to a second embodiment of the invention arranged in the interface between the spindle and the drill bit; Fig. 6 is a detailed view of the interface between the spindle and the drill bit in fig. 5; Fig. 7 shows a spindle with an installed drill bit and a fluid conduitaccording to a third embodiment of the invention arranged in the interface between the spindle and the drill bit; Fig. 8 is a detailed view of the interface between the spindle and the drill bit in fig. 7; Fig. 9 shows a spindle with an installed drill bit and a fluid conduitaccording to a fourth embodiment of the invention arranged in the interface between the spindle and the drill bit; and Fig. 10 is a detailed view of the interface between the spindle and the drill bit in fig. 9.Detailed description of the shown embodiments of the invention Figure l shows a typical spindle l0 of the prior art with an installeddrill bit 20, and figure 2 is a detailed view of an interface space 30 between the spindle l0 and the installed drill bit 20.
    The spindle is driven and fed by motor (not shown) via a feed gear (not shown) and a drive gear (not shown) that are connected to the outside of the spindle. For this purpose the outside of the spindle l0includes a threading l3 configured to mate with the feed gear so as tofeed the spindle in a forward direction during a drilling operation.The threading l3 is interrupted by axial splines that are arranged tomate with a drive gear arranged to drive the rotation of the spindleand the installed drill bit 20. In order to drive the spindle forward,the feed gear is set to rotate at a higher rotational speed than the drive gear.
    The spindle l0 includes a hollow interior that includes a fluidconduit ll leading to a socket portion l6 for connection to a drillbit 20. The interior of the socket portion l6 includes a threadedportion l5 for connection to a drill bit 20, which has an outerthreading that mates with the threaded portion l5 inside socketportion l6. The outer end l4 of the spindle l0 is configured to abut acontact surface 24 of the drill bit 20. The hollow interior of thespindle l0 is so dimensioned with respect to the drill bit 20 suchthat an interface space 30 is formed between the outlet of the fluid conduit ll of the spindle and the inner end drill bit 20.
    The fluid conduit ll of the spindle is arranged to convey a fluid for lubrication and/or cooling of the drill bit 20 and especially for lubrication and/or cooling of the interface between the drill bit andthe surface of the work piece into which the drill bit 20 ispenetrating during operation. The drill bit 20 comprises a fluidchannel 21 with an inlet opening facing the interface space 30 betweenthe spindle 10 and the drill bit 20 when installed inside the spindle, and an outlet opening 22 at an outer tip 25 of the drill bit 20.
    Hence, during operation, fluid is provided from a fluid source (not shown) through the fluid conduit 11 inside the spindle 10, via theinterface space 30 between the spindle 10 and the drill bit 20 andinto the inlet opening 23 of the fluid channel 21 through the drill bit 10 to exit to the drill zone through the outlet opening 22.
    The socket portion 16 has a first axial length al of a first diameterdl adapted to receiving an attachment portion 26 of the drill bit 10.The fluid conduit 11 for conveying a fluid to the socket portion 16has a second diameter dl, which is narrower than the first diameter dlof the socket portion 16. The attachment portion 26 of the drill bit20 has a specific second axial length az adapted to be shorter than thespecific axial length al of the socket portion 16 such that a gap orinterface space 30 that at least partly is of the first diameter dl isformed between the mouth of the fluid channel 11 and the drill bit 20 when the drill bit is installed inside the socket portion 16.
    Normally, the fluid used for cooling and or lubrication of the drillzone consists of a mist of pressurised air and lubrication liquid suchas oil. The invention is based on the notion that the fluiddistribution is impeded in that liquid is gathered in the periphery ofthe interface space 30 due to centrifugal forces created duringoperation, Typically, the interface space 30 is saturated with liquidduring operation. As soon as the interface space 30 is saturated thefluid mist will be conveyed through the fluid conduit 11 of thespindle 10, via the interface space 30 without loss and into the fluid channel 21 through the drill bit 10.
    After operation, however, when the spindle no longer rotates the fluidthat has been gathered in the interface space may leave the interfacespace and flow into the fluid channel 2l of the drill bit 20. Liquidthat is trapped inside the fluid channel 2l will, when the motor isrestarted to set the spindle to rotate simultaneously as the fluiddistribution is activated, be blown out of the drill bit as anaccumulation of liquid by action of the pressurised mist.Subsequently, a phase will follow in which liquid will re-accumulatein the interface space 30 such that the fluid passing through thefluid channel 2l will mostly consist of air. Hence, in this phase thefluid distribution will be incomplete and the lubrication and/or cooling effect will be insufficient.
    This problem of the prior art of unreliable and discontinuous fluiddistribution has hence been established to reside in that fluid maygather in the gap in the interface space 30 between the spindle l0 andthe drill bit 20. The problem is solved by the inventive fluid conveyor, which is described in four different embodiments below.
    A first embodiment of the inventive fluid conveyor 40 is shown infigures 3 and 4. This fluid conveyor 40 comprises a gap filling flexible element configured to fill the interface space 30 between thespindle l0 and the drill bit 20 when the drill bit is installed in thespindle l0. The fluid conveyor 40 is advantageously made of an elasticmaterial such as rubber or the like. The material should preferably not be porous so to not allow fluid to gather inside it.
    The fluid conveyor 40 is arranged to connect the fluid conduit ll tothe fluid channel 2l of the drill bit. The fluid conveyor 40 has aninternal channel 44 of a third diameter dß that is narrower than thefirst diameter dl, so as to avoid that fluid is gathered in a peripheryof the interface space 30 between the fluid conduit ll of the spindlel0 and the fluid channel 2l of the drill bit 20 when the drill bit is installed in the socket portion l6. The fluid conveyor 40 is advantageously a separate part that is insertable into the socket portion 16 of the spindle 10.
    The fluid conveyer has a shape that is adapted to the shape of spindle10 and to the size and shape of the drill bit 20 to be inserted intothe spindle 10. Spindles may have different shapes and sizes and thefluid conveyer 40 of the first embodiment may therefore have to beindividually adapted to a specific spindle and to a range of drillbits. Hence the fluid conveyor 40 comprises a first end 41 that isadapted to fit against the mouth of the fluid conduit 11 of thespindle 10, a second end 42 that is adapted to fit against the mouthof the fluid channel 21 of the drill bit 10, and a body 43 that is adapted to fill the gap there between, i.e. the interface space 30.How these parts are configured is hence dependent on the size andshape of the specific spindle and drill bit with which it is adapted tO möte .
    A second embodiment of the inventive fluid conveyer 50 is shown infigures 5 and 6. This fluid conveyer 50 has the same function as the fluid conveyer 40 according to the first embodiment, i.e. to connectthe fluid conduit 11 of the spindle 10 to the fluid channel 21 of the drill bit 20.
    The fluid conveyor 50 according to the second embodiment comprises atubular portion 51 having an inner diameter d3, a first axial end 52connecting to the fluid conduit 11 of the spindle, and a second axialend 53 configured to abut the drill bit 10 when the drill bit isinstalled in the socket portion 16 of the spindle 10. The thirddiameter dß that is narrower than the first diameter dl of theinterface space 30. The first axial end 52 of the tubular portion 51is arranged to extend into the fluid conduit 11 of the spindle 10, which is of the second diameter dß Further, the fluid conveyer 50 comprises a couple of O-rings 54arranged to make the connections of the respective ends 52,53 of the tubular portion 51 fluid tight. In the shown embodiment five O-rings are used, but of course the number of O-rings may be adapted to the specific length of the free end of the tubular portion 5l, and to theassumed length of the interface space 20. The second axial end 53includes a rim that is configured to stop the O-ring from sliding off the tubular portion 5l.
    An advantage of the fluid conveyor 50 according to the secondembodiment is that it may be adapted to interface spaces 30 ofdifferent lengths, by adding or removing O-rings and let the firstaxial end 52 of the tubular portion slide farther or shorter into thefluid conduit ll of the spindle l0. The fluid conveyer 50 furthercomprises a slit 55, which is arranged to allow fluid that getstrapped between the tubular portion 5l and the inner wall of the fluidconduit ll of the spindle l0 to re-enter the tubular portion 5l of the fluid conveyer 50.
    A fluid conveyor 60 according to a third embodiment is shown infigures 7 and 8. This fluid conveyer 60 connects the fluid conduit llof the spindle l0 to the fluid channel 2l of the drill bit 20 via atubular portion 6l. The tubular portion 6l is spring biased by meansof a spring 64 towards a position where it extends out of the fluidconduit ll of the spindle l0. Hence, when a drill bit 20 is arrangedinside the socket of the spindle l0 the contact with the drill bitwill act against the spring action and push the fluid conveyer 60further into the fluid conduit ll of the spindle l0. The tubularportion 6l has a tubular shape of a third diameter dß that is narrowerthan the first diameter d¿ of the interface space 30. Typically it isnarrow enough to fit tightly inside the fluid conduit ll of the spindle l0, which is of the second diameter dß The fluid conveyor 60 according to the third embodiment further comprises a first O-ring 65 arranged to abut the mouth of the fluidconduit ll of the spindle l0 and a second O-ring 65 arranged to abutthe mouth of the fluid channel 2l of the drill bit 20. The spring 64 is arranged between these O-ring 65,66 so as to make sure that the O- rings lie firmly against the respective mouths in order to providefluid tight connections. The fluid conveyer 60 is provided with a slit 65, with same function as the slit 55 of the second embodiment.
    In a similar manner as for the fluid conveyor 50 according to thesecond embodiment a first axial end 62 of the tubular portion 6l isarranged to extend into the fluid conduit ll of the spindle l0 to avarying degree depending on the length of the installed drill bit 20.A second axial end 63 of the tubular portion is arranged to abut thedrill bit tightly under the action of the spring 64 arranged betweenthe O-rings 65,66.
    A fluid conveyor 70 according to a fourth embodiment is shown infigures 9 and l0. As for the previous embodiments this fluid conveyer70 connects the fluid conduit ll of the spindle l0 to the fluidchannel 2l of the drill bit 20 via a tubular portion 7l of the fluidconveyer 70. The tubular portion 7l has a tubular shape of a thirddiameter dß that is narrower than the first diameter dl of theinterface space 30. Typically it is narrow enough to fit tightlyinside the fluid conduit ll of the spindle l0, which is of the second diameter dß The fluid conveyor 70 according to the fourth embodiment resembles thefluid conveyor 60 according to the third embodiment shown in figures 7and 8. A difference is however that the fluid tight seal against thefluid conduit ll of the spindle l0 is made inside said fluid conduitll by means of an O-ring 74 arranged around a first axial end 72 ofthe tubular portion 7l, which end is configured to extend into saidfluid conduit ll. An opposite second axial end 73 of the tubularportion 7l is provided with an O-ring 75 that is configured to provide a fluid tight sealing against the back end of the drill bit 20.
    A spring 76 is arranged to push the fluid conveyer 70 towards contactwith the drill bit l0. With the fluid conveyor 70 according to thefourth embodiment the shape of the first axial end 72 and the O-ring arranged thereon needs to be adapted within specific tolerances in ll order to fit tightly inside the fluid conduit ll of the spindle l0 and to assure a fluid tight connection to said fluid conduit ll.
    The O-ring 75 in the second axial end 73 of the fluid conveyer 70 iskept at place by a first circular rim 77 that is arranged so as topush the O-ring to extend axially outside the tip of the second axialend 73. A second circular rim 78 is arranged to keep the O-ring 77from sliding off the fluid conveyer 70. The second circular rim 78 isless accentuated than the first circular rim 77, and allows for the O- ring to be removed and exchanged over said second circular rim 78.
    Above, the invention has been described with reference to specificembodiments. The invention is however not limited to theseembodiments.
    The embodiments described above are all easily installed and removedfrom inside the drill bit. In some applications it may however beadvantageous to arrange the fluid conveyer in a more fixed manner,such that it will remain seated when the drill bit is exchanged foranother drill bit.
    For instance, the fluid conveyer may be fixed part of the spindle, or it may be arranged so as to be locked inside the spindle. A thread connective rim (not shown) may be configured to lockthe fluid conveyor axially with respect to the spindle by interaction to the threaded portion l5 of the socket portion l6. A tubular portionof the fluid conveyer may be spring biased with respect to the thread connective rim so as to push an end of the tubular portion towards interaction with the drill bit.
    Further, it is obvious to a person skilled in the art that the invention comprises further embodiments, which are either acombination of the embodiments above or other embodiments within the invention's scope of protection as defined by the following claims.
    权利要求:
    Claims (6)
    [1] 1. A spindle (10) of a drilling tool of the type with a fluidconveyed through the interior of a drill bit to a drilling zone,which spindle (13) is drivable by a motor of the drilling tool,wherein the spindle comprises: - a socket portion (16) for receiving and attaching a drill bit(20) to the spindle (10), the socket portion (16) having a firstaxial length (al) of a first diameter (dl) adapted to receiving anattachment portion (26) of the drill bit (20), - a fluid conduit (11) for conveying a fluid to the socket portion(16), the fluid conduit (11) having a second diameter (dl) whichsecond diameter (d2) is narrower than the first diameter (dl) of thesocket portion, wherein the attachment portion (26) has a specificsecond axial length (az) adapted to be shorter than the specificaxial length (al) of the socket portion (16) such that an interfacespace (30) having the first diameter (dl) is formed between thefluid conduit (ll) and the drill bit (20) when the drill bit isinstalled in the socket portion (16), characterised in that a fluid conveyor (40;50;60;70) is arranged toconnect the fluid conduit (11) to the drill bit (20), the fluidconveyor having a third diameter (dl), which third diameter (dl) isnarrower than the first diameter (dl), so as to avoid that fluid isgathered in a periphery of the interface space (30) between thefluid conduit (ll) and the drill bit (20) when the drill bit is installed in the socket portion (16).
    [2] 2. The spindle of claim 1, wherein the fluid conveyor (40;50;60;70)is a separate part that is insertable into the socket portion (16) of the spindle (10).
    [3] 3. The spindle of claim 1 or 2, wherein the fluid conveyor(50;60;70) comprises a tubular portion (51;61;71) that is partlyinsertable into the fluid conduit (11) of the spindle (10), the 13 tubular portion (51;61;71) having a first axial end (52;62;72)configured to extend into the fluid conduit (11) of the spindle (10)and a second axial end (53;63;73) configured to abut the drill bit(10) when the drill bit is installed in the socket portion (16). The spindle of claim 3, wherein the tubular portion (51;61;71) isspring biased out from the fluid conduit (11) of the spindle (10) soas to push the second axial end (53;63;73) towards the drill bit(10) when the drill bit is installed in the socket portion (16). The spindle of claim 3 or 4, wherein the first axial end (72) isprovided with an external O-ring (74) configured to provide a fluidtight connection to the inside of the fluid conduit (11) of thespindle (10) The spindle of claim 3, wherein a plurality of O-rings (54) areprovided around the periphery of the tubular portion (51), which O-rings are arranged to bias the tubular portion (51) out from thefluid conduit (11) of the spindle (10) so as to push the secondaxial end (53) towards the drill bit (10) when the drill bit is installed in the socket portion (16). The spindle of claim 4, wherein the second axial end (53;63;73)is provided with an external O-ring (54;66;75) configured to providea fluid tight connection to the drill bit (20) when the drill bit is installed in the socket portion (16). The spindle of claim 1 or 2, wherein the fluid conveyor (40)comprises a gap filling flexible element configured to fill theinterface space (30) between the fluid conduit (11) of the spindle(10) and the drill bit (20) when the drill bit is installed in the socket portion (16). The spindle according to anyone of the preceding claims, whereinthe spindle comprise a threaded portion (15) inside the socketportion (16) and wherein the fluid conveyor (40;50;60;70) comprises a thread connective rim configured to lock the fluid conveyor lO. ll. 14 (40;50;60;70) axially with respect to the spindle by interaction to the threaded portion (l5) of said socket portion (l6). A drilling tool of the type with a fluid conveyed through the interior of the drill bit to the drilling zone, which drilling tool is characterised in that it comprises a spindle (l0) according to anyone of the preceding claims. Method of installing a drill bit (20) in a spindle (l0) of a drilling tool, the spindle comprising: - a socket portion (l6) for receiving and attaching the drill bit(20) to the spindle (20), the socket portion (l6) having a firstaxial length (al) of a first diameter (dl) adapted to receiving anattachment portion (26) of the drill bit (20), - an fluid conduit (ll) for conveying a fluid to an opening (23) inthe drill bit, the fluid conduit (ll) having a second diameter (dfiwhich second diameter (d2) is narrower than the first diameter (dflof the socket portion (l6), wherein the attachment portion (26) hasa specific second axial length (az) that is shorter than thespecific axial length (al) of the attachment portion (26) such that an interface space (30) having the first diameter is formed (ll) (dfland the drill bit (20) (l6), between the fluid conduit when the drillbit is installed in the socket portioncharacterised by the step of arranging a fluid conveyor(40;50;60;70) to connect the fluid conduit (ll) to the opening (23)in the drill bit before or simultaneously as the drill bit isinstalled, the fluid conveyor having a third diameter (dy,(då (dflfto avoid that fluid is gathered in a periphery of the interface (30) (ll) (20) which third diameter is narrower than the first diameter so asand the drill bit (l6). space between the fluid conduit when the drill bit is installed in the socket portion
    类似技术:
    公开号 | 公开日 | 专利标题
    US5888031A|1999-03-30|Drilling device
    KR940003668A|1994-03-12|Chuck with drive bit socket
    CN100441375C|2008-12-10|Clamping device with top cover and top cover for clamping device
    US9915117B2|2018-03-13|Fluid pulse valve
    JPH04144709A|1992-05-19|Rotary drilling tool
    CA2479430C|2010-12-07|Grease filling arrangement in a cutter for a boring head
    US4705439A|1987-11-10|Machine tool collet containing means for passing a cutting fluid therethrough
    SE1551218A1|2017-03-23|Power tool
    JP4982253B2|2012-07-25|Combination holder
    US4648422A|1987-03-10|Apparatus for drilling into a pipe under pressure
    KR101412825B1|2014-06-27|Tool holder with cutting oil passage
    CN206668148U|2017-11-24|Planetary drilling equipment
    RU2588954C1|2016-07-10|New-type chuck
    JP6487329B2|2019-03-20|Sealing system for a tool gripping device
    US2412937A|1946-12-24|Boring head
    KR101510112B1|2015-04-08|Handpiece with dust discharge structure
    JPH11287305A|1999-10-19|Feed screw device
    CN206981821U|2018-02-09|A kind of assembled drill bit of single direction rotation
    CN107008930B|2018-12-11|Numerically controlled lathe servo turret
    US20150323129A1|2015-11-12|Self-oiling pneumatic tool
    CN105728802A|2016-07-06|Transverse drilling device
    CN208642910U|2019-03-26|Screw transporter and its screw sleeve
    CN208513710U|2019-02-19|A kind of fluted drill that using effect is good
    JP2005161471A|2005-06-23|Rotary tool
    US1214542A|1917-02-06|Rock-drill.
    同族专利:
    公开号 | 公开日
    EP3352933B1|2021-02-24|
    CN108025376B|2019-04-23|
    JP2018531807A|2018-11-01|
    SE539848C2|2017-12-19|
    US20180272435A1|2018-09-27|
    WO2017050625A1|2017-03-30|
    CN108025376A|2018-05-11|
    JP6872552B2|2021-05-19|
    US10543540B2|2020-01-28|
    EP3352933A1|2018-08-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3402989A1|1984-01-28|1985-08-08|SMW Schneider & Weißhaupt GmbH, 7996 Meckenbeuren|DEVICE FOR MONITORING THE OPERATING CONDITION OF A POWER CHUCK|
    WO2004073910A2|2003-02-20|2004-09-02|Gühring, Jörg|Depth adjustment for a clamping|
    DE10331769B4|2003-07-14|2006-06-29|Schunk Gmbh & Co. Kg Fabrik Für Spann- Und Greifwerkzeuge|chuck|
    JP2005313257A|2004-04-27|2005-11-10|Toyota Motor Corp|Preset screw and tool holder|
    US7090448B2|2004-08-03|2006-08-15|Ford Motor Company|Tool holder assembly|
    US20060029479A1|2004-08-03|2006-02-09|Ford Motor Company|Tool holder assembly|
    DE102006016883A1|2005-03-29|2006-10-05|E. Zoller GmbH & Co. KG Einstell- und Messgeräte|Clamping unit of power tool, comprising attachment for coolant designed in cylindrical shape with wider contact area|
    DE202005011271U1|2005-07-14|2006-08-24|EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge|Device for supplying a rotating or rotatable tool for material processing with coolant and / or lubricant|
    DE202005016270U1|2005-10-14|2007-06-28|Gühring Ohg|Tool chuck designed for automatic clamping by means of an automatic spindle on a machine|
    DE102005054718B4|2005-11-17|2013-08-08|MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG|Interface between two tool elements|
    JP4818487B1|2011-01-24|2011-11-16|成根 李|Tool holder and machine tool|
    DE202011109498U1|2011-12-27|2012-02-13|Franz Haimer Maschinenbau Kg|Tool holder and clamping system with such a tool holder|
    US9757804B2|2013-08-08|2017-09-12|Kennametal Inc|High pressure coolant tube and tool body-high pressure coolant tube assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1551218A|SE539848C2|2015-09-22|2015-09-22|Spindle for drill bit provided with fluid transferring conveyor and method for installing drill bit|SE1551218A| SE539848C2|2015-09-22|2015-09-22|Spindle for drill bit provided with fluid transferring conveyor and method for installing drill bit|
    EP16765990.3A| EP3352933B1|2015-09-22|2016-09-15|Power tool|
    CN201680054544.3A| CN108025376B|2015-09-22|2016-09-15|Power tool|
    JP2018534006A| JP6872552B2|2015-09-22|2016-09-15|Power tools|
    PCT/EP2016/071754| WO2017050625A1|2015-09-22|2016-09-15|Power tool|
    US15/762,078| US10543540B2|2015-09-22|2016-09-15|Power tool|
    [返回顶部]