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    HELICAL BROACH AND INTERNAL GEAR MACHINING METHOD USING THE SAME
    1.
    发明申请
    HELICAL BROACH AND INTERNAL GEAR MACHINING METHOD USING THE SAME 审中-公开

    公开(公告)号：US20180243847A1

    公开(公告)日：2018-08-30

    申请号：US15904507

    申请日：2018-02-26

    申请人： NACHI-FUJIKOSHI CORP.

    发明人： Hideki SATO ,  Shota MIURA ,  Kazuyuki NAKAMURA ,  Masayuki TSUNO

    IPC分类号： B23D43/06 ,  B23F21/26 ,  B23D43/04

    CPC分类号： B23D43/06 ,  B23D37/16 ,  B23D43/005 ,  B23D43/04 ,  B23F21/26

    摘要： A helical broach which eliminates the need for a fixing means for fixing a workpiece during gear machining is provided. The helical broach includes: a plurality of cutting edges; a spiral flute formed between adjacent cutting edges to extend in a spiral manner with a predetermined helix angle with respect to an axial direction of the helical broach; and a gullet formed between adjacent cutting edges to extend with a predetermined helix angle with respect to a circumferential direction of the helical broach. In the helical broach, the expression: 0.5≤tan β/tan(α+β)≤0.7 is satisfied, wherein β is the helix angle of the spiral flute, and (90°−α) is the helix angle of the gullet with reference to a central axis of the helical broach. An internal gear machining method using the helical broach is also provided.

    HELICAL BROACH
    2.
    发明申请
    HELICAL BROACH 有权
    友情链接

    公开(公告)号：US20150336192A1

    公开(公告)日：2015-11-26

    申请号：US14651380

    申请日：2013-12-18

    申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

    发明人： Yasuhito KATSUKI

    IPC分类号： B23F21/26 ,  B23D43/04 ,  B23D43/00

    CPC分类号： B23F21/264 ,  B23D43/005 ,  B23D43/04 ,  B23F21/26 ,  Y10T407/1628 ,  Y10T407/1685

    摘要： The shell of this helical broach (1) is formed by stacking a plurality of wafer shells (20W(1)-20W(N)) in the axial direction, and is obtained by forming on the wafer shells (20W(1)-20W(N)) finishing blades (30W(1)-30W(N)) corresponding to teeth grooves on a piece to be cut (W) and forming the finishing blades (30W(1)-30W(N)) such that the blade width gradually increases with each of the aforementioned wafer shells (20W(1)-20W(N)) from the leading end of the cutting direction toward the trailing end of the cutting direction.

    摘要翻译： 这种螺旋状拉刀（1）的壳体通过在轴向上层叠多个晶片壳（20W（1）〜20W（N））而形成，并且通过在晶片壳（20W（1）〜20W （N））对应于待切割件（W）上的齿槽并且形成精加工刀片（30W（1）-30W（N））的精加工刀片（30W（1）-30W（N））， 从切割方向的前端朝向切割方向的后端，每个上述晶片壳（20W（1）〜20W（N））的宽度逐渐增大。

    HELICAL BROACH
    3.
    发明申请
    HELICAL BROACH 有权
    友情链接

    公开(公告)号：US20130156513A1

    公开(公告)日：2013-06-20

    申请号：US13818808

    申请日：2011-08-26

    申请人： Naoki Yoshizumi ,  Yoshio Kobayashi ,  Kensuke Kohno ,  Hideyuki Fujiwara

    发明人： Naoki Yoshizumi ,  Yoshio Kobayashi ,  Kensuke Kohno ,  Hideyuki Fujiwara

    IPC分类号： B23D43/00

    CPC分类号： B23D43/005 ,  B23F21/26 ,  Y10T407/16

    摘要： This helical broach forms a twisted groove at the inner circumference of a machined hole of a workpiece by a plurality of cutting teeth, the plurality of cutting teeth include a plurality of circumference cutting teeth which are arranged on the tip-end side of the broach body, and include a plurality of tooth thickness cutting teeth which are arranged on the rear-end side of the broach body. The plurality of tooth thickness cutting teeth include cutting edges and guiding edges, respectively. The tooth thickness cutting tooth positioned closest to the rear-end side of the broach body is provided with the guiding edge instead of the cutting edge at the intersecting ridge part between a rake face and a lateral surface facing one wall surface of both groove wall surfaces of the twisted groove of the workpiece.

    摘要翻译： 该螺旋状拉刀通过多个切削齿在工件的加工孔的内周形成扭曲槽，多个切削齿包括多个圆周切削齿，其布置在拉刀体的前端侧 并且包括布置在拉刀体的后端侧的多个齿厚切削齿。 多个齿厚切削齿分别包括切削刃和引导刃。 最靠近拉刀体的后端侧定位的齿厚切削齿设置有引导边缘，而不是在两个槽壁表面的一个壁表面的前刀面和侧表面之间的交叉脊部分处的切削刃 的工件的扭曲槽。

    HELICAL BROACH FOR ROUGHING
    4.
    发明申请
    HELICAL BROACH FOR ROUGHING 有权
    舒适的连接

    公开(公告)号：US20110020078A1

    公开(公告)日：2011-01-27

    申请号：US12920126

    申请日：2009-09-10

    申请人： Yasuhito Katsuki

    发明人： Yasuhito Katsuki

    IPC分类号： B23P15/42

    CPC分类号： B23D43/005 ,  B23F1/08 ,  B23F21/26 ,  Y10T407/16 ,  Y10T407/1671 ,  Y10T407/1685

    摘要： A helical broach 1 for roughing includes a cutting tooth part 30 in which n spline teeth 31 are arranged side by side in an axial direction. The spline teeth 31 each include cutting teeth 32 which are arranged at a predetermined helix angle. The cutting teeth 32 each have an acute angle portion and an obtuse angle portion on both sides thereof in a circumferential direction. The cutting teeth disposed on the first to n−1th spline teeth 31 (S1 to Sn−1) in the circumferential direction are each formed in such a way that its height on the acute angle portion side differs from that on the obtuse angle portion side. The cutting teeth (Sn) of the nth spline tooth (Sn) are each formed in such a way that its height stays constant in the circumferential direction.

    摘要翻译： 用于粗加工的螺旋拉刀1包括切削齿部30，其中n个花键齿31沿轴向并排布置。 花键齿31各自包括以预定的螺旋角度布置的切割齿32。 切割齿32在圆周方向上的两侧具有锐角部和钝角部。 在圆周方向上设置在第一至第n至第n花键齿31（S1至Sn-1）上的切割齿各自形成为其锐角部侧的高度与钝角部侧的高度不同 。 第n个花键齿（Sn）的切削齿（Sn）各自以其高度在圆周方向上保持恒定的方式形成。

    Broaching Tool and Method for Machining the Surfaces of Bores
    6.
    发明申请
    Broaching Tool and Method for Machining the Surfaces of Bores 失效
    用于加工孔表面的拉削工具和方法

    公开(公告)号：US20080118322A1

    公开(公告)日：2008-05-22

    申请号：US10594536

    申请日：2005-02-23

    申请人： Dieter Kress ,  Friedrich Haberle

    发明人： Dieter Kress ,  Friedrich Haberle

    IPC分类号： B23D43/06 ,  B23D37/16 ,  B23P15/42

    CPC分类号： B23D43/005 ,  Y10T407/15 ,  Y10T409/400175 ,  Y10T409/40105 ,  Y10T409/402975

    摘要： A broaching tool for the machining of bore surfaces, namely for introducing at least one groove, is proposed, the tool having a cutter head (5) with at least one cutter (69) and with a body (3) bearing the cutter head (5). The tool is characterized in that the cutter head (5) is rotatably movable and positioned eccentrically in the body (3), and that the middle axis (65) of the cutter head (5) forms an acute angle α with the middle axis (7) of the body (3).

    摘要翻译： 提出了一种用于加工孔表面的拉削工具，即用于引入至少一个凹槽，该工具具有具有至少一个切割器（69）的切割头（5）以及承载刀头的主体（3） 5）。 该工具的特征在于，刀头（5）可旋转地移动并偏心地定位在主体（3）中，并且刀头（5）的中间轴线（65）与中间轴线形成锐角α 7）身体（3）。