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1. 发明专利

JP2012045680A Helical broach 有权
标题翻译：友情链接
公开(公告)号：JP2012045680A
公开(公告)日：2012-03-08
申请号：JP2010191074
申请日：2010-08-27
申请人： Mitsubishi Materials Corp , 三菱マテリアル株式会社
发明人： YOSHIZUMI NAOKI , KOBAYASHI YOSHIO , KONO KENSUKE , FUJIWARA HIDEYUKI
IPC分类号： B23D43/02
CPC分类号： B23D43/005 , B23F21/26 , Y10T407/16
摘要： PROBLEM TO BE SOLVED: To provide a helical broach that prevents over-cutting by a final finishing blade to machine a workpiece with excellent tooth-trace accuracy.SOLUTION: A plurality of cutting edges 5 protruding to the radial outer-peripheral side are lined up in rows at the outer-peripheral part of a shaft-like broach body and arranged into a spiral shape twisted around the axis of the broach body from the tip side of the broach body to the rear-end side and the rows of the cutting edges are arranged circumferentially spaced apart with spacings. The helical broach forms a twisted groove of a predetermined lead on the inner periphery of a machined hole of a workpiece by the plurality of cutting edges. The plurality of cutting edges on the tip side of the broach body in the plurality of cutting edges are made as outer-diameter finishing blades while the plurality of cutting edges on the rear-end side of the broach body are made as tooth-thickness finishing blades. The tooth-thickness finishing blade 7BB is located closest to the rear-end side of the broach body in the plurality of tooth-thickness finishing blades 7B on the rear-end side of the broach body and is formed with a guide blade 13 instead of a cutting blade 9 at the intersecting ridge part between a rake face 5A and a side face facing circumferential one side of the same.
摘要翻译：要解决的问题：提供一种螺旋拉刀，其可防止最终精加工刀片过度切割，以优异的牙轨精度加工工件。解决方案：突出到径向外周侧的多个切削刃5在轴状拉刀体的外周部分排列成排列成围绕拉刀的轴线扭转的螺旋形状主体从拉刀体的尖端侧到后端侧，并且切割边缘的行以间隔布置成周向间隔开。螺旋状拉刀通过多个切削刃在工件的加工孔的内周上形成预定的引线的扭曲槽。将多个切削刃中的拉削体的前端侧的多个切削刃形成为外径精加工刀片，将拉刀体的后端侧的多个切削刃形成为齿厚精加工刀片。齿形精加工刮板7BB位于拉刀体的后端侧的多个齿厚精加工刀片7B中最靠近拉刀主体的后端侧，并且形成有导向叶片13，而不是位于前刀面5A与面向周向一侧的侧面之间的交叉脊部的切割刀片9。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2008229743A Integral helical broach and broach processing method 有权
标题翻译：一体化的连接和铺路加工方法
公开(公告)号：JP2008229743A
公开(公告)日：2008-10-02
申请号：JP2007069289
申请日：2007-03-16
申请人： Mitsubishi Materials Corp , 三菱マテリアル株式会社
发明人： HIRANO KENICHIRO , YOSHIZUMI NAOKI , TAMAMURA HIDEKAZU , KOBAYASHI YOSHIO , FUJIWARA HIDEYUKI , KONO KENSUKE
IPC分类号： B23D43/00
摘要： PROBLEM TO BE SOLVED: To provide an integral helical broach integrally formed with a broach body up to a tooth thickness finishing edge, capable of preventing degradation of a processed surface and increase in cutting resistance due to gouges on a groove wall surface.
SOLUTION: The tooth thickness finishing edge 7 integrally formed with a broach body 1 includes cutting edges 5. In the tooth thickness finishing edge 7A on the top edge of the broach body 1, a cutting edge 9 is formed on the intersection ridge of a face 5A and a side face 5B on the obtuse angle side and a guide edge 10 is formed on the intersection ridge of the face 5A and a side face 5C on the acute angle side. In the tooth thickness finishing edge 7B on the rear edge of the broach body 1, the cutting edge 9 is formed on the intersection ridge of the face 5A and the side face 5B on the acute angle side and the guide edge 10 is formed on the intersection ridge of the face 5A and the side face 5C on the obtuse angle side.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种与拉刀体整体形成直到齿厚精加工边缘的整体螺旋拉刀，其能够防止加工表面的劣化，并且由于槽壁表面上的沟槽而增加切削阻力。解决方案：与拉刀体1一体形成的齿厚精加工边缘7包括切削刃5.在拉刀主体1的顶部边缘上的齿厚精加工边缘7A中，在交叉路口上形成切削刃9 在锐角侧的面5A和侧面5C的交叉路口上形成面5A和侧面5B，并且引导边缘10形成在锐角侧。在拉刀体1的后缘的齿厚精加工边缘7B中，切削刃9形成在锐角侧的面5A和侧面5B的交叉路口上，引导边缘10形成在面5A的交叉面和钝角侧的侧面5C。版权所有（C）2009，JPO＆INPIT

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