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2. 发明公开

EP2090389A1 Machining unit and machine tool 有权
标题翻译： Maschineneinheit und Maschinenwerkzeug
公开(公告)号：EP2090389A1
公开(公告)日：2009-08-19
申请号：EP09153005.5
申请日：2009-02-17
申请人： Sankyo Seisakusho Co. , Yamazaki Mazak Corporation
发明人： Kato, Heizaburo , Kitayama, Minoru , Horibe, Kazuya , Kojima, Hidekazu , Nakatsu, Masaharu
IPC分类号： B23B29/034
CPC分类号： B23B29/03482 , B23B2260/02 , Y10T82/16591 , Y10T82/16737 , Y10T279/14 , Y10T409/306664 , Y10T409/307896
摘要： A machining unit that is supported on a machine tool and machines a workpiece by a revolving tool with a main spindle section being driven and rotated includes an eccentric rotational section, a tool holder, a tool revolution-radius changing mechanism, and a cutting-edge-orientation correcting mechanism. The eccentric rotational section is disposed on the main spindle section, and is rotatable about an eccentric axis that is located eccentrically at any distance in a radial direction of the main spindle section from a rotation center of the main spindle section. The tool holder is disposed on the eccentric rotational section, and supports the tool. The tool revolution-radius changing mechanism moves the tool in the radial direction, and changes the radius of the revolution of the tool by rotating the eccentric rotational section about the eccentric axis. The cutting-edge-orientation correcting mechanism corrects the orientation of a cutting edge of the tool by making the tool holder spin about an axis of the tool holder, the axis being parallel to the rotation center of the main spindle section.
摘要翻译：一个加工单元，其被支撑在机床上并且通过被驱动和旋转的主轴部分的旋转工具对工件进行加工，包括偏心旋转部分，工具保持器，刀具旋转半径改变机构和切削刃取向矫正机制。所述偏心旋转部设置在所述主轴部上，并且能够相对于所述主轴部的旋转中心偏心偏心地设置在所述主轴部的径向的偏心轴上。工具架设置在偏心旋转部分上，并支撑工具。工具旋转半径改变机构沿径向移动工具，并且通过围绕偏心轴旋转偏心旋转部分来改变工具的旋转半径。刀尖定向校正机构通过使工具架围绕刀架的轴线旋转，该轴线平行于主轴部的旋转中心来校正刀具的切削刃的取向。

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