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1. 发明授权

US4254591A Internal lapping tool 失效
标题翻译：内部研磨工具
公开(公告)号：US4254591A
公开(公告)日：1981-03-10
申请号：US53288
申请日：1979-06-28
申请人： Julius P. Sedgwick , Lindy Helms
发明人： Julius P. Sedgwick , Lindy Helms
IPC分类号： B24B33/08 , B24B33/02
CPC分类号： B24B33/082 , Y10S451/905
摘要： An internal lapping tool comprises a steel mandrel having a cast iron generally cylindrical head welded on the front and thereof. The head is formed with two spaced arcuate lapping faces opposite a longitudinal slot which carries a cast iron insert providing a third arcuate lapping face. A wedge member slideably mounted for longitudinal movement in the mandrel provides for moving the insert radially. The three arcuate lapping faces on the rotating head provide a three point contact on the wall of a hole being lapped, thereby effectively producing a round mating form as desired for lapping. Futhermore, as the arcuate faces wear and the hole enlarges during the lapping operation, the arcuate lapping faces are kept snugly at all times against the cylindrical wall of the hole being lapped by the longitudinal positive feed of the wedge member.
摘要翻译：内部研磨工具包括钢心轴，其具有在其前部焊接的大致圆柱形的铸铁头。头部形成有两个间隔开的弧形研磨表面，其相对于纵向槽，其携带提供第三弧形研磨表面的铸铁插入件。可滑动地安装成用于在心轴中纵向移动的楔形构件提供径向移动插入件。旋转头上的三个弧形研磨面在被研磨的孔的壁上提供三点接触，从而有效地产生所需的研磨的圆形配合形式。此外，随着弧形面磨损，并且在研磨操作期间孔增大，弓形研磨面始终保持紧贴在被楔形构件的纵向正向进给的孔的圆柱形壁上。

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