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公开(公告)号：EP2476497B1
公开(公告)日：2015-05-13
申请号：EP10850197.4
申请日：2010-04-19
发明人： MURAKI Toshiyuki , HARADA Yukihide , YAMAMOTO Yuki
CPC分类号： B23C3/34 , B23C5/02 , Y10T409/303808 , Y10T409/304424 , Y10T409/305656 , Y10T409/30672 , Y10T409/307672
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公开(公告)号：EP2476497A1
公开(公告)日：2012-07-18
申请号：EP10850197.4
申请日：2010-04-19
发明人： MURAKI Toshiyuki , HARADA Yukihide , YAMAMOTO Yuki
CPC分类号： B23C3/34 , B23C5/02 , Y10T409/303808 , Y10T409/304424 , Y10T409/305656 , Y10T409/30672 , Y10T409/307672
摘要： The present invention reduces or prevents bank occurrence with higher accuracy of groove shape to be machined as being cut and ensures sufficient groove depth while avoiding interference with a work even when a small-diameter tool is used.
When cutting machining of circumferential groove is performed as forwarding a cutting tool which is attached to a rotating shaft extending to an inner side from an outer side of a rotating work into the work in a depth direction, the rotating shaft is downwardly inclined toward the inner side of the work at a predetermined inclination angle, a trajectory of a cutting edge within the work is arranged to be an ellipse of which minor axis is oriented in the radial direction connecting a deepest point thereof and the center O of the work as viewing in a plane view, and the work is cut as lowering the cutting tool until reaching groove depth of a machining target while maintaining the inclination angle, so that deviation occurring in a direction of an axis toward a work center axis in parallel to a work face from a point on the work face on which the deepest point is projected or an axis of the rotating shaft of the cutting tool projected on the work face can be arbitrarily set.摘要翻译： 本发明能够减小或防止在加工时的槽形状的精度更高的切割，并确保足够的凹槽深度，同时避免干扰工件，即使使用小直径工具。 当进行周向槽的切削加工时，将沿着旋转工件的外侧延伸到内侧的旋转轴向深度方向转送到工件中，进行切削加工，转动轴向内侧 工作中的边缘的轨迹被布置为椭圆，其短轴在连接其最深点和工件的中心O的径向方向上定向为观察 平面图，并且在保持倾斜角度的同时降低切削工具直到达到加工对象的凹槽深度为止，切割工件，使得在与工作面平行的工作中心轴线的方向上发生的偏差从 投影最深点的工作面上的点或投影在工作面上的切削工具的旋转轴的点可以任意设定。
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