CN100478108C - 有可更换的刀头的旋转切削刀具 - Google Patents

有可更换的刀头的旋转切削刀具 Download PDF

Info

Publication number
CN100478108C
CN100478108C CNB038035871A CN03803587A CN100478108C CN 100478108 C CN100478108 C CN 100478108C CN B038035871 A CNB038035871 A CN B038035871A CN 03803587 A CN03803587 A CN 03803587A CN 100478108 C CN100478108 C CN 100478108C
Authority
CN
China
Prior art keywords
cutter head
bearing
knife bar
rotary cutting
additional support
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.)
Expired - Lifetime
Application number
CNB038035871A
Other languages
English (en)
Other versions
CN1630569A (zh
Inventor
伯恩哈德·博谢特
迪特尔·米尔弗里德尔
于尔根·施瓦格尔
菲尔霍·鲁伊弗罗塔德索扎
迈克尔·D·舒尔茨
迈克尔·R·麦科米克
罗伯特·A·埃里克森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kennametal Inc
Original Assignee
Kennametal Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kennametal Inc filed Critical Kennametal Inc
Publication of CN1630569A publication Critical patent/CN1630569A/zh
Application granted granted Critical
Publication of CN100478108C publication Critical patent/CN100478108C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft
    • B23C5/109Shank-type cutters, i.e. with an integral shaft with removable cutting inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00Reaming tools
    • B23D77/02Reamers with inserted cutting edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00Reaming tools
    • B23D77/02Reamers with inserted cutting edges
    • B23D77/025Securing arrangements for cutting inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2205/00Fixation of cutting inserts in holders
    • B23B2205/02Fixation using an elastically deformable clamping member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/50Drilling tools comprising cutting inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D2277/00Reaming tools
    • B23D2277/02Cutting head and shank made from two different components which are releasably or non-releasably attached to each other
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S408/00Cutting by use of rotating axially moving tool
    • Y10S408/713Tool having detachable cutting edge
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/892Tool or Tool with support with work-engaging structure detachable from cutting edge
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/907Tool or Tool with support including detailed shank
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • Y10T408/9095Having peripherally spaced cutting edges with axially extending relief channel
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • Y10T408/9095Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097Spiral channel
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges
    • Y10T408/9098Having peripherally spaced cutting edges with means to retain Tool to support

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Milling Processes (AREA)
  • Knives (AREA)

Abstract

本发明涉及一种一种旋转切削刀具(3),其由一个具有至少一个出屑槽(5)的刀杆(2)和一个可更换的刀头(1)组成,其中,用于安装所述刀头(1)的一凹槽(6)处于所述刀杆杆顶(4)旁和所述出屑槽(5)的壁内,该凹槽(6)在刀杆侧以一棱边(7)为界,刀头(1)在刀杆一侧的窄侧面(12)贴靠在所述棱边(7)上。所述刀头(1)具有一用于安装在所述刀杆(2)的一个与刀具轴线(A)同心的安装孔(16)内的固定销柱(15)。所述刀杆(2)在其圆周上具有一个带有一支承面(8)的凸臂(9),该支承面(8)相对于所述刀具轴线(A)倾斜地设置并与在所述刀头(1)的一个刀片(11)上的同样倾斜设置的支承面(10)相对应,其中,所述支承面(8、10)的倾斜方向与刀具旋转方向(D)一致。通过所述支承面(8、10)的倾斜设置产生一个将刀头(1)保持固定在刀杆(2)上的轴向力。

Description

有可更换的刀头的旋转切削刀具
技术领域
本发明涉及一种由一刀杆和一可更换的刀头组成的旋转切削刀具,尤其是钻孔工具。
背景技术
例如由EP0118806B1已知一种有可更换的刀头的钻孔工具。这种钻孔工具有一个带有一安装孔的刀杆,可将所述刀头的一固定销柱插入到此安装孔内。在插装刀头时,将该刀头相对于刀杆旋转一个约45°的角度。不设其他附加的固定元件。所述刀头和刀体可设计为,使刀片在杆一侧的窄侧压靠到刀杆内的槽在杆一侧的棱边上。在刀杆与刀头之间的轴向力可这样产生,即,使所述槽在杆一侧的棱边沿钻孔方向略为升高,与此同时所述固定销柱借助在杆侧的展宽防止从刀杆中被拉出。由此当刀头钻孔时在刀片支座内产生张紧力,此张紧力在钻孔时随切削力的增大而增强。由此张紧力形成的轴向力将刀头从刀体中拉开。从而限制了将刀头固定在刀杆上的稳定性和整个钻孔工具的机械承载能力。
按照由EP 0118806B1已知的钻孔工具的另一项设计,设在刀头中央的固定销柱具有沿钻孔旋转方向成螺线状略微上升的支承面。通过固定销柱上的与刀杆安装座上相应成形的支承面接触的支承面的这种略微螺线状的设计,将一轴向力朝刀体方向施加到刀头上。此轴向力在整个高度上作用在与钻头直径相比尺寸较小并因而能承受较小机械负荷的固定销柱上。除此之外在固定销柱上施加一扭矩,该扭矩进一步限制了刀杆与刀头之间连接的机械承载能力。
发明内容
本发明所要解决的技术问题是,提供一种由一刀杆与一刀头在无需其他紧固件的条件下组成的旋转切削刀具,尤其是钻头,该旋转切削刀具在刀杆与刀头之间有特别稳固和能承载的连接。
上述技术问题按照本发明通过一种旋转切削刀具得以解决,该旋转切削刀具由一个具有至少一个出屑槽的刀杆和一个可更换的刀头组成,在此刀具中,用于安装所述刀头的一凹槽处于所述刀杆杆顶旁和所述出屑槽的壁内,该凹槽在刀杆侧以一棱边为界,刀头在刀杆一侧的窄侧面贴靠在所述棱边上,以及在此刀具中,所述刀头具有一用于安装在所述刀杆的一个与刀具轴线同心的安装孔内的固定销柱,其中,所述刀杆在其圆周上有一凸臂,该凸臂有一与所述刀杆圆周邻接的支承面,该支承面相对于所述刀具轴线倾斜地设置并与在所述刀头的一个刀片上同样倾斜设置的支承面相对应,按照本发明,所述支承面相对于所述刀具轴线构成一个最小15°和最大60°的支承角并且该支承面的倾斜方向与刀具旋转方向一致,所以通过此倾斜设置的支承面所述刀头在旋入时被压靠到所述刀杆上,以及该刀头只部分地覆盖所述刀杆的杆顶。
在这里,带有可更换的刀头的旋转切削刀具的刀杆,在刀具圆周上有一优选地总体上相对于刀具轴线倾斜设置的凸臂。在此凸臂或导片上嵌接所述刀头的一个刀片上的相应地倾斜设置的支承面。通过在刀具圆周上的这种倾斜设置的支承面,当将刀头旋入到刀杆内时产生一将刀头压靠在刀杆上的作用力。这种轴向压紧力在使用刀具时随着切削力的增大而增大。刀头及刀杆的外部直径区域用于在刀头与刀杆之间传递扭矩。通过将支承面布设在刀具圆周上,使为在刀杆与刀头之间传递扭矩所需的力限制在尽可能小的程度上。
刀头只部分地在刀杆的杆顶处覆盖刀杆。尤其是刀杆的凸臂在杆顶未被刀头覆盖或只部分被其覆盖。因此,刀头的支承面除固定销柱外可以几乎沿其整个高度延伸。以此方式保证在刀头与刀杆之间大面积的力和扭矩的传递。在刀杆圆周上的用于传递扭矩的凸臂优选地几乎沿刀头的刀片的整个高度延伸,所以刀片在杆顶处只略微突出于凸臂。
刀体的直径优选地略大于刀杆直径。从而以简单的方式确保,在切削加工时只有刀头加工工件表面。
刀头在被置入到刀杆内时首先以固定销柱装入到一安装孔内,接着类似于卡口连接地旋转刀头。为了在装入刀头后、在旋转前保证刀头相对于刀杆处于一规定的轴向位置,按一项优选的扩展设计,在刀杆和刀头上都设有导引台阶。
将刀头朝刀杆方向拉的轴向力取决于支承角,该支承角是刀头和刀杆的支承面相对于刀具轴线构成的夹角。刀杆的凸臂和刀头的刀片的足够大的轴向力以及稳定的结构,通过优选地采用最小15°和最大60°,最好为30°的支承角来实现。在出屑槽具有螺旋形构造的情况下,所述支承角优选地与该出屑槽的螺旋角一致。
固定销柱与刀杆的对应安装孔优选地这样设计,即,使得该固定销柱在旋入到所述刀杆中时被夹紧。为此,所述固定销柱可具有椭圆形横截面,而安装孔具有圆形横截面。仅仅将固定销柱的横截面设计为椭圆形而具有的优点是,在制造刀具时也就是说只有在刀头上的一个外形轮廓需构造成椭圆形,而可以取消一种加工非常麻烦的孔的椭圆形构造。作为一个基本上为圆柱形销柱的替代形式,必要时可具有略成椭圆形的横截面,刀头也可以有一个圆锥形的销柱。在这种情况下所述刀杆的圆锥形安装孔,同样以在加工技术方面有利的方式可以有一种与销柱横截面略有不同的圆形横截面。销柱可以向下,亦即朝刀杆方向圆锥形地变细,由此可以非常容易地将销柱插入到刀杆内,或者与之不同销柱向下扩展,由此与椭圆形横截面形状相结合地增大刀头在刀杆内的夹紧度。因为刀杆的安装孔在出屑槽.处是敞开的,因此在任何情况下都能够实现顺利地将刀头置入和夹紧在刀杆内。
按一项优选的扩展设计,所述刀杆的凸臂和刀头的刀片分别除所述支承面外有一个与此支承面反向地相对于刀具轴线倾斜设置的附加支承面。这些附加支承面优选地与所述支承面相邻接,在这种情况下可以在这些表面之间设一个与所述支承面及附加支承面相比尺寸更小的过渡面。通过使支承面面朝刀顶以及附加支承面面朝刀杆,在按规定使用刀具时在刀杆的凸臂与相邻区域之间的承受机械负荷大的过渡区相宜地得到增强。总之,所述支承面和附加支承面构成一大面积的、用于在刀杆与刀头之间传力和扭矩的接触面。在这里,不仅所述支承面而且还有附加支承面除了可能存在的在各表面上的倒角部段外都与刀具圆周邻接,从而得到在扭矩传递方面特别有利的几何比例。
与所述优选地与刀具轴线构成一个从15°至60°的支承角的支承面类似,附加支承面也优选地设置为相对于刀具轴线倾斜一个-10°至-60°的附加支承角。优选地将附加支承面倾斜地设置成其倾斜角在量值上比所述支承面的倾斜角略小。
通过支承面产生一个将刀头朝刀杆方向拉的轴向力,而附加支承面引起一个沿反方向的轴向力。为保证一合力将刀头拧紧在刀杆上,令凸臂的支承面关于刀具轴线方向延伸的所谓支承高度,优选地大于该凸臂的附加支承面沿所述方向延伸的所谓相对支承高度。相应地这一情况同样适合于在刀头的刀片上的支承面和附加支承面。因而在支承面方面和在附加支承面方面的不同的尺寸设计也与不同表面在量值上不同的倾斜设置一样产生相同的效果,亦即使刀具运行时在刀杆与刀头之间产生一合成的拧紧力。
附图说明
下面借助附图详细说明本发明的实施方式。附图中:
图1表示一个由一钻杆和一刀头组成的旋转切削刀具;
图2表示图1所示的旋转切削刀具的刀杆;
图3表示图1所示的旋转切削刀具的刀头;
图4用横截面图表示刀杆和刀头的被松开的固定销柱;
图5用横截面图表示刀杆和刀头的已被夹紧的固定销柱;
图6表示由一刀杆和一刀头组成的旋转切削刀具的另一种实施方式;
图7表示按照图6所示的旋转切削刀具的刀杆;
图8表示图7所示刀杆的一局部详图;
图9表示图6所示旋转切削刀具的刀头;以及
图10表示按图9所示刀头的一局部详图。
在所有的附图中互相对应的构件以相同的附图标记标注。
具体实施方式
图1至3以透视图表示一设计为钻头的旋转切削刀具3的刀体或刀头1以及钻杆或刀杆2。例如扩孔刀具、铣削刀具或研磨工具也可按类似的方式构成。作为刀头1用的材料尤其考虑使用硬质合金、金属陶瓷、陶瓷和高速钢(HSS),它们分别有或没有镀层。刀头1可以配备有PKD或CBN。刀头1例如或按传统的方式通过磨削完成加工,或借助所谓的“金属注模法”(MIM)制造。刀体1可以在刀杆3的杆顶4处置入到该刀杆内。为此以及为了从钻杆2上拆卸刀头1采用图中未示出的板手。用D表示刀具旋转方向,刀具轴线或钻头轴线用A表示。优选地用钢或硬质合金制成的钻杆2具有两个螺线状的、从一图中未示出的钻头安装座一直延伸到杆顶4的出屑槽5。作为两个螺线状出屑槽5的替代方式,钻杆2也可以有数量与之不同的直线的或螺线状出屑槽。在杆顶4处两个与出屑槽5邻接的凹槽6分别具有一个垂直于钻头轴线A延伸的棱边7和一个倾斜于钻头轴线A延伸的支承面8。该支承面8分别构成钻杆2圆周上的一个凸臂9的边界。
在组装钻头3时,刀头1的一个刀片11的支承面10贴靠在凸臂9的支承面8上。支承面8、10以这样的方式相对于刀具轴线A倾斜,即,使得刀头1在旋转切削刀具3沿刀具旋转方向D旋转时拧紧在钻杆2上。支承面8、10相对于刀具轴线A的倾斜位置与出屑槽5的螺旋角一致。因此,刀头1的刀片11沿钻头轴线A有一个几乎在其整个高度H上恒定的宽度B。
刀体1的刀片11在杆顶4处略伸出钻杆2。凸臂9在杆顶4未被刀头1遮盖。刀头1的刀体直径Ds略大于刀杆直径Dw。在钻杆2的棱边7与凸臂9上相邻的支承面8之间过渡区设计为倒圆的,以避免出现机械的峰值负荷。刀头1在杆一侧的窄侧12贴靠在棱边7上。在将刀体1置入到钻杆2中时,在旋紧前,支承面8沿未用于刀体1的定位。为了使刀体1在旋紧前能准确地定位,在钻杆2上与凸臂9邻接处设一导引台阶13以及在刀头1上设一对应的导引台阶14。在刀头1的导引台阶14处邻接一用于安装在刀杆2的安装孔16内的固定销柱15。设在杆顶4以及钻头圆周上的凹槽6和与之邻接的安装孔16一起构成一个用于将刀体1连同固定销15插装到刀杆2内的空腔。固定销柱15有一倒角斜边17,通过该斜边使得易于插入到安装孔16内。安装孔16设置为与钻头轴线A同心并有一圆形横截面,在这里此横截面可以沿钻头轴线A改变。与圆柱形安装孔16不同,它也可以设计为圆锥形,尤其向下、亦即从杆顶4出发向下收缩。在相反的情况下是一个向下呈锥形扩张的安装孔16,由此达到更可靠地防止刀头1从刀杆2中掉落或被拉出。安装孔16朝出屑槽5的方向开口,所以肯定可以将刀头1方便地置入刀杆2内。在固定销柱15和安装孔16各种设计的情况下刀体1均可以用简单的方式定心。
图4和5用横截面图表示刀杆2与置入到安装孔16内的固定销柱15处于松开或夹紧位置。按此优选的实施形式,固定销柱15有一种略成椭圆形的横截面。采用椭圆形横截面,固定销柱15在置入到安装孔16内时有一些间隙。通过将刀头1旋转约45°,使固定销柱15夹紧在安装孔16内。固定销柱15以这样的方式侧向对准,即,使得该固定销柱在夹紧的状态下与出屑槽5的形状相匹配。作为椭圆形横截面的替代形式,固定销柱15和/或安装孔16也可以有其他与圆形不同的横截面,只要通过这种横截面可以达到将固定销柱15夹紧在钻杆2安装孔16内的目的。这类的横截面设计形状例如在按照DE19945097A1所述的用于轴与轮毂的旋转固定和滑移固定(dreh-und schubfest)地连接的夹紧装置中是已知的。
固定销柱15的略成椭圆形的横截面设计,不仅可以在固定销柱15的圆柱形基本形状中实现,而且可以在安装孔16以及固定销柱15的圆锥形结构中实现。在向下锥形扩张的安装孔16以及总体上同样设计为锥形的固定销柱15同时有椭圆形横截面的情况下,当将固定销柱15旋入到安装孔16中时产生一个轴向力,此轴向力将固定销柱拉入到安装孔16内并因而支持了借助支承面8、10将刀头1固定在刀杆2上的轴向力。
图6至10表示作为旋转切削刀具的一钻头3或该钻头3的刀杆2或刀头1的另一种优选的扩展设计。在这里,刀杆2的凸臂9除支承面8外有一附加支承面8a。类似地,刀头1的刀片11有一个与刀杆2的附加支承面8a相对应的附加支承面10a。除此之外,按此第二个实施例的旋转切削刀具1的设计构造基本上与按照第一个实施例的设计构造一致。两个附加支承面8a、10a与支承面8、10反方向地相对于刀具轴线A倾斜地定位。一个过渡面18在刀片11的支承面10与附加支承面10a之间大体平行于钻头轴线A地延伸。相反,凸臂9的支承面8与附加支承面8a仅通过一圆角19连接。因此,在将刀头1置入到刀杆2内时,过渡面18未贴靠在刀杆2上。在组合钻头3时刀头1相对于刀杆2的旋转因而不受过渡面18的限制,而是仅仅受支承面及附加支承面8、10、8a、10a的限制。
凸臂9的支承面8相对于钻头轴线A沿支承高度Ha延伸。附加支承面8a延伸的高度称为相对支承高度Hg。支承高度Ha的量值超过相对支承高度Hg的量值约50%。支承面8a与钻头轴线A相交成一个支承角α1,而附加支承面8a与钻头轴线A相交成一附加支承角α2。附加支承角α2的量值小于支承角α1的量值。在图示的实施例中,支承角α1为30°,以及附加支承角α2为20°。除了附加支承面8a的高度与支承面8相比较小外,此角度差也有助于使通过附加支承面8a和刀头1对应的附加支承面10a的倾斜定位将刀头从刀杆2中拉开的轴向力小于因支承面8、10的倾斜定位造成的反向轴向力。因此在用钻头3加工工件时,保留一个将刀头1拧紧在刀杆2上的合力。
通过凸臂9上的与支承面8反向倾斜设置的附加支承面8a,使得钻孔时在刀杆2在刀杆2的凸臂9与相邻区域之间的负荷特别大的过渡区得到增强。与此同时不因在刀头1的刀片11上有附加支承面10a而损害刀头的稳定性。同理,将刀头1方便地置入到刀杆2中和从刀杆2取出的可能性也不受附加支承面8a、10a的影响。

Claims (13)

1.一种旋转切削刀具(3),其由一个具有至少一个出屑槽(5)的刀杆(2)和一个可更换的刀头(1)组成,在此刀具中,用于安装所述刀头(1)的一凹槽(6)处于所述刀杆杆顶(4)旁和所述出屑槽(5)的壁内,该凹槽(6)在刀杆侧以一棱边(7)为界,刀头(1)在刀杆一侧的窄侧面(12)贴靠在所述棱边(7)上,以及在此刀具中,所述刀头(1)具有一用于安装在所述刀杆(2)的一个与刀具轴线(A)同心的安装孔(16)内的固定销柱(15),其中,所述刀杆(2)在其圆周上有一凸臂(9),该凸臂有一与所述刀杆(2)圆周邻接的支承面(8),该支承面(8)相对于所述刀具轴线(A)倾斜地设置并与在所述刀头(1)的一个刀片(11)上同样倾斜设置的支承面(10)相对应,其特征为:所述支承面(8、10)相对于所述刀具轴线(A)构成一个最小15°和最大60°的支承角(α1)并且该支承面(8、10)的倾斜方向与刀具旋转方向(D)一致,所以通过此倾斜设置的支承面(8、10)所述刀头(1)在旋入时被压靠到所述刀杆(2)上,以及该刀头(1)只部分地覆盖所述刀杆(2)的杆顶(4)。
2.按照权利要求1所述的旋转切削刀具(3),其特征为:所述刀头的刀体直径(Ds)大于所述刀杆的直径(Dw)。
3.按照权利要求1或2所述的旋转切削刀具(3),其特征为:在所述刀杆(2)上设有一导引台阶(13)和在所述刀头(1)上设有一对应的导引台阶(14)。
4.按照权利要求1或2所述的旋转切削刀具(3),其特征为:所述出屑槽(5)的螺旋角与所述支承面(8、10)的支承角(α1)一致。
5.按照权利要求1或2所述的旋转切削刀具(3),其特征为:所述固定销柱(15)基本上是圆柱形的。
6.按照权利要求1或2所述的旋转切削刀具(3),其特征为:所述固定销柱(15)基本上是圆锥形的。
7.按照权利要求1或2所述的旋转切削刀具(3),其特征为:所述固定销柱(15)具有椭圆形的横截面。
8.按照权利要求1所述的旋转切削刀具(3),其特征为:在所述凸臂(9)上设有一个相对于所述刀具轴线(A)与该凸臂(9)的支承面(8)反方向倾斜设置的附加支承面(8a),该附加支承面与在所述刀头(1)的刀片(11)上的一附加支承面(10a)相对应。
9.按照权利要求8所述的旋转切削刀具(3),其特征为:在所述刀头(1)的刀片(11)上的支承面(10)面朝着所述杆顶(4),以及在该刀头(1)的刀片(11)上的附加支承面(10a)面朝着所述固定销柱(15)。
10.按照权利要求8或9所述的旋转切削刀具(3),其特征为:所述附加支承面(8a、10a)相对于所述刀具轴线(A)构成一个在-10°至-60°范围内的附加支承角(α2)。
11.按照权利要求10所述的旋转切削刀具(3),其特征为:所述支承面(8、10)的支承角(α1)的量值超过所述附加支承面(8a、10a)的附加支承角(α2)的量值。
12.按照权利要求8或9所述的旋转切削刀具,其特征为:所述凸臂(9)的支承面(8)相对于所述刀具轴线(A)方向延伸的支承高度(Ha)大于该凸臂(9)的附加支承面(8a)相对于刀具轴线(A)方向延伸的相对支承高度(Hg)。
13.用于按照权利要求1至12中任一项所述的旋转切削刀具(3)的刀头。
CNB038035871A 2002-02-21 2003-02-15 有可更换的刀头的旋转切削刀具 Expired - Lifetime CN100478108C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207257.4A DE10207257B4 (de) 2002-02-21 2002-02-21 Rundlaufschneidwerkzeug mit auswechselbarem Schneideinsatz
DE10207257.4 2002-02-21

Publications (2)

Publication Number Publication Date
CN1630569A CN1630569A (zh) 2005-06-22
CN100478108C true CN100478108C (zh) 2009-04-15

Family

ID=27740269

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB038035871A Expired - Lifetime CN100478108C (zh) 2002-02-21 2003-02-15 有可更换的刀头的旋转切削刀具

Country Status (13)

Country Link
US (4) US7360974B2 (zh)
EP (1) EP1476269B1 (zh)
JP (1) JP4397235B2 (zh)
KR (1) KR100957953B1 (zh)
CN (1) CN100478108C (zh)
AT (1) ATE446154T1 (zh)
AU (1) AU2003210281A1 (zh)
BR (1) BR0307798B1 (zh)
CA (1) CA2484602C (zh)
DE (2) DE10207257B4 (zh)
ES (1) ES2333419T3 (zh)
MX (1) MXPA04008179A (zh)
WO (1) WO2003070408A1 (zh)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10207257B4 (de) * 2002-02-21 2021-02-18 Kennametal Inc. Rundlaufschneidwerkzeug mit auswechselbarem Schneideinsatz
DE10333340A1 (de) * 2003-07-23 2005-02-17 Kennametal Inc. Bohrer
IL162147A (en) * 2004-05-24 2008-03-20 Gil Hecht Drill with interchangeable head
US7467915B2 (en) * 2004-10-06 2008-12-23 Kennametal Inc. Modular drill
IL164888A (en) * 2004-10-28 2009-07-20 Iscar Ltd Cutting tool and cutting head for it
AT502061A1 (de) * 2005-06-24 2007-01-15 Boehlerit Gmbh & Co Kg Reibahle mit schneidplatte
GB2434771B (en) * 2006-02-02 2011-11-30 Bencere Ltd A Cutting Insert
DE102006045918A1 (de) 2006-09-28 2008-04-03 Robert Bosch Gmbh Gesteinsbohrer
US7950880B2 (en) * 2006-10-18 2011-05-31 Kennametal Inc. Spiral flute tap
IL181295A (en) * 2007-02-12 2011-07-31 Iscar Ltd A cutting tool that includes a self-locking release bar head
IL181296A0 (en) 2007-02-12 2007-07-04 Iscar Ltd Tool with releasably mounted self-clamping cutting head
DE102007044095A1 (de) * 2007-09-14 2009-03-19 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Bohrwerkzeug mit Bohrkrone
WO2008072840A2 (en) * 2007-11-05 2008-06-19 Taegutec. Ltd. Rotary cutting tool
SE533652C2 (sv) * 2008-04-14 2010-11-23 Seco Tools Ab Verktyg för roterande skärande bearbetning med utbytbart skärhuvud
SE532280C2 (sv) * 2008-04-14 2009-12-01 Seco Tools Ab Verktyg, verktygskropp och skärhuvud
US7625161B1 (en) 2008-08-08 2009-12-01 Kennametal Inc. Rotary cutting tool assembly and cutting insert and tool shank therefor
JP5279848B2 (ja) * 2009-02-04 2013-09-04 オーエスジー株式会社 先端ヘッド交換式回転工具、先端ヘッド、および工具本体
US8220804B2 (en) * 2009-02-05 2012-07-17 Kennametal Inc. Toolholder assembly with axial clamping mechanism
DE102009012725B4 (de) 2009-03-11 2020-10-15 Kennametal Inc. Bohrerspitze sowie Bohrwerkzeug mit einer Bohrerspitze
DE102009013580A1 (de) * 2009-03-19 2010-09-23 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Modularer Bohrer
SE533853C2 (sv) 2009-06-23 2011-02-08 Sandvik Intellectual Property Borrverktyg för spånavskiljande bearbetning samt löstopp härför
WO2011021275A1 (ja) * 2009-08-18 2011-02-24 オーエスジー株式会社 スローアウェイ式回転工具
JP4954331B2 (ja) * 2009-12-08 2012-06-13 オーエスジー株式会社 スローアウェイ式回転工具
CN102159350B (zh) * 2009-12-08 2014-12-10 Osg株式会社 不重磨式旋转工具
CN112159869B (zh) 2010-01-19 2024-04-19 瑞恩麦特克斯股份有限公司 使用超临界流体从生物质产生可发酵的糖和木质素
DE102010025653B4 (de) * 2010-06-30 2018-09-20 Kennametal Inc. Rotations-Schneidwerkzeug
DE102010026271B4 (de) 2010-07-06 2019-02-14 Kennametal Inc. Bohrwerkzeug
CN101992385A (zh) * 2010-10-26 2011-03-30 东莞市微创工具科技有限公司 一种免磨钻头切削刀片的制备方法及切削刀片
CN102151881B (zh) * 2011-04-25 2014-06-18 苏茂均 一种舍弃式钻头的制备方法及该舍弃式钻头
SE535855C2 (sv) 2011-05-16 2013-01-15 Sandvik Intellectual Property Roterbart borrverktyg samt grundkropp härför
US8759498B2 (en) 2011-12-30 2014-06-24 Renmatix, Inc. Compositions comprising lignin
DE102012200690B4 (de) * 2012-01-18 2021-06-17 Kennametal Inc. Rotationswerkzeug sowie Schneidkopf für ein solches Rotationswerkzeug
KR101396016B1 (ko) * 2012-06-08 2014-05-16 한국야금 주식회사 커팅 인서트 자체 고정 타입의 인덱서블 드릴
DE102012212146B4 (de) 2012-07-11 2024-02-01 Kennametal Inc. Kupplungsstelle für ein modulares Rotationswerkzeug sowie Werkzeugkopf und Träger für ein solches modulares Rotationswerkzeug
DE102013205889B3 (de) 2013-04-03 2014-05-28 Kennametal Inc. Kupplungsteil, insbesondere Schneidkopf für ein Rotationswerkzeug sowie ein derartiges Rotationswerkzeug
CN103223524A (zh) * 2013-05-07 2013-07-31 南通大力化工设备有限公司 换热管切管工装
CN103331474A (zh) * 2013-06-30 2013-10-02 北京迪蒙集智科技有限公司 一种可换尖圆柱铣刀
DE102013220884B4 (de) 2013-10-15 2022-02-17 Kennametal Inc. Modulares Trägerwerkzeug sowie Werkzeugkopf
KR101509954B1 (ko) * 2013-10-29 2015-04-07 한국야금 주식회사 절삭 인서트 및 인덱서블 드릴
DE102014206796B4 (de) 2014-04-08 2020-10-15 Kennametal Inc. Rotationswerkzeug, insbesondere Bohrer sowie Schneidkopf für ein solches Rotationswerkzeug
DE102014207501B4 (de) 2014-04-17 2022-08-04 Kennametal Inc. Rotationswerkzeug, insbesondere Bohrer sowie Verfahren zur Herstellung eines solchen Rotationswerkzeugs
DE102014218373B3 (de) * 2014-09-12 2015-09-24 Kennametal Inc. Montageschlüssel für einen Werkzeugkopf
USD760565S1 (en) 2014-10-30 2016-07-05 Kennametal Inc. Wrench for modular drilling tools
CN104588739B (zh) * 2014-12-30 2017-02-22 株洲钻石切削刀具股份有限公司 一种旋转加工刀具
DE102015211744B4 (de) 2015-06-24 2023-07-20 Kennametal Inc. Rotationswerkzeug, insbesondere Bohrer, und Schneidkopf für ein solches Rotationswerkzeug
USD798921S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for modular drill
US10071430B2 (en) 2015-10-07 2018-09-11 Kennametal Inc. Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head
US9937567B2 (en) 2015-10-07 2018-04-10 Kennametal Inc. Modular drill
USD798922S1 (en) 2015-10-07 2017-10-03 Kennametal Inc. Cutting head for rotary drill
DE102015220777B4 (de) 2015-10-23 2020-08-13 Kennametal Inc. Werkzeugkupplung zwischen zwei Kupplungsteilen sowie Kupplungsteil für eine solche Werkzeugkupplung
JP7123035B2 (ja) 2016-09-07 2022-08-22 イスカル リミテッド 弾性的に位置変更可能な当接部が設けられた中央凹部を有する頭部支持表面付き工具軸
US11235397B2 (en) 2016-12-16 2022-02-01 Kennametal Inc. Side-activated modular drill
IL249676B (en) 2016-12-20 2021-08-31 Hanita Metal Works Ltd An end mill with differently rotated slot profiles
DE102017205166B4 (de) 2017-03-27 2021-12-09 Kennametal Inc. Modulares Rotationswerkzeug und modulares Werkzeugsystem
EP3427876B1 (en) * 2017-07-10 2022-06-22 Sandvik Intellectual Property AB Rotary cutting insert and tool having axial locking member
DE102017212054B4 (de) 2017-07-13 2019-02-21 Kennametal Inc. Verfahren zur Herstellung eines Schneidkopfes sowie Schneidkopf
US10799958B2 (en) 2017-08-21 2020-10-13 Kennametal Inc. Modular rotary cutting tool
US11110521B2 (en) * 2018-03-07 2021-09-07 Iscar, Ltd. Rotary cutting head having a rigid mounting protuberance and rotary cutting tool
DE102019116160A1 (de) 2018-06-20 2019-12-24 Kennametal Inc. Seitlich geschlossener modularer Bohrer mit federunterstütztem Auswurf
US11059109B2 (en) 2018-12-31 2021-07-13 Iscar, Ltd. Cutting head having torque transmission surfaces on a mounting protuberance and rotary cutting tool having such cutting head
CN112077370B (zh) 2019-06-13 2024-10-01 肯纳金属印度有限公司 可转位钻头刀片
US20220250173A1 (en) * 2019-08-09 2022-08-11 Moldino Tool Engineering, Ltd. Cutting tool with replaceable cutting head, cutting head, and tool main body
US11471952B2 (en) 2020-03-19 2022-10-18 Kennametal Inc. Cutting tool having replaceable cutting head and method of securing a replaceable cutting head
US11453070B2 (en) 2020-05-21 2022-09-27 Iscar, Ltd. Rotatable cutting head having torque transmission surfaces on a mounting protuberance and rotary cutting tool
US11951553B2 (en) 2021-03-29 2024-04-09 Iscar, Ltd. Rotatable cutting head having tip portion with three radially extending cutting edges forming a rectilinear rotational profile
US12109635B2 (en) 2021-04-21 2024-10-08 Iscar, Ltd. Rotatable cutting head having tip portion with radially extending cutting edges forming a cutting profile having concave and convex sub-portions
US11883888B2 (en) 2021-06-28 2024-01-30 Kennametal Inc. Modular drill with enhanced bump-off capability
US11865629B2 (en) 2021-11-04 2024-01-09 Kennametal Inc. Rotary cutting tool with high ramp angle capability
US11819926B2 (en) * 2021-11-16 2023-11-21 Iscar, Ltd Cutting head having four cutting portions and two convex clamping surfaces, and rotary cutting tool

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524677C (de) 1931-05-11 Emil Kremer Bohrer mit auswechselbaren Schneidmessern fuer Metallbearbeitung
US22394A (en) * 1858-12-21 Norman s
DE94340C (de) 1896-09-27 1897-10-16 Quergetheilter Spiralbohrer mit auswechselbarem Spitzentheil
US932071A (en) 1908-12-10 1909-08-24 Arthur Haendler Spiral drill.
FR479336A (fr) * 1915-01-23 1916-03-15 Societe Lorraine Des Anciens Etablissements De Die Foret à lame rapportée
US1461548A (en) 1921-05-05 1923-07-10 Claude A West Metal-working tool
US2158120A (en) 1936-02-19 1939-05-16 Charles A Hirschberg Detachable drill bit
US2294969A (en) 1940-03-08 1942-09-08 Engvall Karl Albert Rotatable chip-cutting tool
FR907980A (fr) 1944-05-24 1946-03-27 Perfectionnements aux meules et outils d'usinage employant des cristaux contondants ou matières quelconques dures et cassantes
US3293727A (en) 1961-04-12 1966-12-27 Bilt Rite Tool & Machine Co Cutting tool
US3153356A (en) 1962-12-17 1964-10-20 Howard K Dearborn Gun drill
US3359837A (en) 1965-01-26 1967-12-26 Detroit Reamer & Tool Company Rotary tool construction
AT286064B (de) * 1968-01-04 1970-11-25 Hawera Hartmetall Werkzeugfarb Spiralbohrer
DE2246965A1 (de) 1972-09-25 1974-04-11 Hawera Probst Kg Hartmetall Spiralbohrer
US4293253A (en) 1979-06-13 1981-10-06 Ott Clyde E Tool holder and carbide insert
SE426148B (sv) 1981-10-12 1982-12-13 Hugo Linden Byggbart borr
DE3306209C2 (de) * 1983-02-23 1985-02-28 Iscar Hartmetall GmbH, 7505 Ettlingen Bohrwerkzeug mit auswechselbarem Schneideinsatz
SE454421B (sv) * 1984-07-12 1988-05-02 Sandvik Ab Borr med utbytbar borrspets
US5024563A (en) 1989-09-08 1991-06-18 North East Form Engineering, Inc. Cutting apparatus
DE69025753T2 (de) 1989-12-25 1996-10-31 Sumitomo Electric Industries Bohrer mit wegwerfeinsatz
JPH03234408A (ja) 1990-02-05 1991-10-18 Sumitomo Electric Ind Ltd スローアウェイ式ドリル
DE69112665T2 (de) 1990-02-20 1996-04-04 Sumitomo Electric Industries Bohrer mit Einwegschneideinsatz.
US5114286A (en) 1991-08-13 1992-05-19 Calkins Donald W Interchangeable tool alignment system
DE4239257C2 (de) 1992-11-21 1998-02-26 Mapal Fab Praezision Spitzbohrwerkzeug
US5685671A (en) 1993-11-01 1997-11-11 Smith International, Inc. Diamond or CBN fluted center cutting end mill
US5452971A (en) * 1994-03-08 1995-09-26 Nevills; Alva D. Rotary end cutting tool
DE4435857A1 (de) 1994-10-07 1996-04-11 Kennametal Hertel Ag Bohrer mit einem Bohrspitzenteil
DE19605157A1 (de) * 1995-03-03 1996-09-05 Komet Stahlhalter Werkzeug Bohrwerkzeug
JP3307809B2 (ja) 1995-10-05 2002-07-24 兼房株式会社 シャンク付回転工具
DE19543233A1 (de) * 1995-11-07 1997-05-15 Johne & Co Praezisionswerkzeug Bohrwerkzeug mit auswechselbarer Spitze
SE511429C2 (sv) 1996-09-13 1999-09-27 Seco Tools Ab Verktyg, skärdel, verktygskropp för skärande bearbetning samt metod för montering av skärdel till verktygskropp
SE510533C2 (sv) 1996-11-04 1999-05-31 Seco Tools Ab Verktyg för skärande bearbetning
IL120948A0 (en) * 1997-05-29 1997-09-30 Iscar Ltd Cutting tool assembly
US6071045A (en) 1998-05-06 2000-06-06 Janness; Daniel Cutting insert and tool
DE19834635C2 (de) 1998-07-31 2001-07-26 Guehring Joerg Bohrwerkzeug mit einem gegen Lösen gesicherten, austauschbaren Schneideinsatz
IL125766A (en) 1998-08-13 2002-12-01 Iscar Ltd The barrel of a tool and a rotating cutting head for placing on it in the form of a self-lining
PT1200222E (pt) 1999-08-03 2003-08-29 Kennametal Inc Broca com cabeca de roscas substituivel
DE19945097B4 (de) * 1999-09-21 2008-04-17 J. Kühl - 3K - Engineering Spannmittel
SE516052C2 (sv) 2000-03-17 2001-11-12 Sandvik Ab Borrverktyg
SE519895C2 (sv) * 2000-07-06 2003-04-22 Sandvik Ab Spets samt roterbart verktyg med utbytbar spets vid verktygets spånavverkande fria ände
US6485235B1 (en) * 2001-05-08 2002-11-26 Allied Machine & Engineering Corp. Cutting tool assembly with replaceable cutting head
SE523205C2 (sv) * 2001-06-06 2004-04-06 Sandvik Ab Roterbart verktyg med utbytbar skärspets vid verktygets spånavverkande fria ände
US6506003B1 (en) * 2001-10-02 2003-01-14 Kennametal Inc. Cutting tool
DE10207257B4 (de) * 2002-02-21 2021-02-18 Kennametal Inc. Rundlaufschneidwerkzeug mit auswechselbarem Schneideinsatz
US7712100B2 (en) * 2004-09-14 2010-05-04 International Business Machines Corporation Determining a capacity of a grid environment to handle a required workload for a virtual grid job request
US7309196B2 (en) * 2004-10-05 2007-12-18 Kennametal Inc. Modular drill
IL164888A (en) * 2004-10-28 2009-07-20 Iscar Ltd Cutting tool and cutting head for it

Also Published As

Publication number Publication date
EP1476269A1 (de) 2004-11-17
ES2333419T3 (es) 2010-02-22
DE50312051D1 (de) 2009-12-03
US8366358B2 (en) 2013-02-05
US7832967B2 (en) 2010-11-16
US20050084352A1 (en) 2005-04-21
AU2003210281A1 (en) 2003-09-09
JP4397235B2 (ja) 2010-01-13
CA2484602C (en) 2010-04-06
DE10207257A1 (de) 2003-09-11
KR100957953B1 (ko) 2010-05-13
WO2003070408A1 (de) 2003-08-28
US8807888B2 (en) 2014-08-19
BR0307798B1 (pt) 2014-04-15
KR20040086419A (ko) 2004-10-08
DE10207257B4 (de) 2021-02-18
BR0307798A (pt) 2004-12-14
US7360974B2 (en) 2008-04-22
US20110020086A1 (en) 2011-01-27
CN1630569A (zh) 2005-06-22
JP2005517539A (ja) 2005-06-16
US20130209189A1 (en) 2013-08-15
MXPA04008179A (es) 2004-11-26
US20080213053A1 (en) 2008-09-04
CA2484602A1 (en) 2003-08-28
ATE446154T1 (de) 2009-11-15
EP1476269B1 (de) 2009-10-21

Similar Documents

Publication Publication Date Title
CN100478108C (zh) 有可更换的刀头的旋转切削刀具
US5971673A (en) Two-piece rotary metal-cutting tool and method for interconnecting the pieces
JP5390527B2 (ja) 回転工具
EP1296791B1 (en) Rotatable tool having a replaceable tip at the chip removing free end of the tool
US8690500B2 (en) Tool interface
US6241433B1 (en) Tool and cutting head for cutting machining
RU2455127C2 (ru) Сверло для вырезания отверстия с плоским основанием
EP1328366B1 (en) Rotatable tool having a replaceable cutting part at the chip removing free end of the tool
JP2005517539A5 (zh)
EP1210196B1 (en) Flat bottom tool
EP0781183B1 (en) Support pad for drill
US7140815B2 (en) Drill for making flat bottom hole
US20030017015A1 (en) Cutting tool and methods of making and reconditioning thereof
WO2003035310A1 (en) Tool for chip forming machining
AU709809B2 (en) Grinding cup and wear part with vibration dampening means
KR200336986Y1 (ko) 스로우어웨이 드릴
CN116568440A (zh) 可转位钻头
JPH04112723U (ja) ドリル

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20090415

CX01 Expiry of patent term