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1. 发明专利

JP2013208704A Apparatus for grinding circular workpiece 有权
标题翻译：研磨圆形工件的装置
公开(公告)号：JP2013208704A
公开(公告)日：2013-10-10
申请号：JP2013107156
申请日：2013-05-21
申请人： Nsk Ltd , 日本精工株式会社
发明人： OSAKA TAKESHI , NAKAHARA IORI
IPC分类号： B24B5/00 , B24B41/06
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for grinding an annular workpiece which can inexpensively improve a roundness of a thin annular workpiece.SOLUTION: An apparatus 100 for grinding an annular workpiece includes: an electromagnetic chuck mechanism in which an electric current is sent to a magnet coil existing around a chuck shaft to be abutted on an end of the annular workpiece 3 for generating magnetic force in the chuck shaft for gripping the annular workpiece 3; a rotary grindstone 2 for grinding an outer peripheral surface or an inner peripheral surface of the annular workpiece 3 while being abutted on the outer peripheral surface or the inner peripheral surface of the annular workpiece 3 gripped by the chuck shaft; a grinding fluid jetting nozzle 1 for jetting a grinding fluid 23 toward a portion to be ground by the rotary grindstone 2; and a grinding fluid supplying means 25 for supplying the grinding fluid 23 to the grinding fluid jetting nozzle 1. Thus the outer peripheral surface or the inner peripheral surface of the annular workpiece 3 is ground by a centerless grinding method. The electromagnetic chuck mechanism includes a chuck power source for executing attenuation demagnetization when the electric current to be sent to the magnet coil is changed over.
摘要翻译：要解决的问题：提供一种用于研磨环形工件的装置，其可以廉价地改善薄的环形工件的圆度。解决方案：用于研磨环形工件的装置100包括：电磁卡盘机构，其中电流被发送到存在于卡盘轴周围的电磁线圈，以抵接在环形工件3的端部上，用于在卡盘轴上产生用于夹持环形工件3的磁力; 旋转砂轮2，用于在环形工件3的外圆周表面或内圆周表面上被磨削在由卡盘轴夹住的环形工件3的外周表面或内圆周表面上进行研磨; 研磨液喷射喷嘴1，用于通过旋转砂轮2将研磨液23朝向待研磨部分喷射; 以及用于将研磨液23供给到研磨液喷射喷嘴1的研磨液供给单元25.因此，环状工件3的外周面或内周面通过无心磨削法研磨。电磁卡盘机构包括：当要发送到电磁线圈的电流被切换时，用于执行衰减消磁的卡盘电源。

2. 发明专利

JP2010188501A Method and apparatus for grinding annular workpiece 有权
标题翻译：研磨环形工件的方法和装置
公开(公告)号：JP2010188501A
公开(公告)日：2010-09-02
申请号：JP2009038059
申请日：2009-02-20
申请人： Nsk Ltd , 日本精工株式会社
发明人： OSAKA TAKESHI , NAKAHARA IORI
IPC分类号： B24B5/00 , B24B41/06
摘要： PROBLEM TO BE SOLVED: To provide a method for grinding an annular workpiece which can improve the circularity of a thin-wall annular workpiece at a low cost.
SOLUTION: The method for grinding the annular workpiece 3 comprises grinding the outer peripheral surface or the inner peripheral surface of an annular workpiece 3, grasped by an electromagnetic chuck mechanism 21, with a grindstone 2 abutted against the outer peripheral surface or the inner peripheral surface and further jetting and supplying a grinding fluid 23 to a site to be ground by the grindstone 2 to grind the outer peripheral surface or the inner peripheral surface of the annular workpiece 3 by a centerless grinding method. According to the method, in a finishing step of a grinding cycle, by reducing an external force which acts on the annular workpiece 3, the deformation amount of the annular workpiece 3 by the external force can be reduced, whereby the circularity of a thin-wall annular workpiece 3 can be improved at low cost.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以以低成本改善薄壁环形工件的圆形度的环形工件的研磨方法。解决方案：用于研磨环形工件3的方法包括：研磨由电磁卡盘机构21夹持的环形工件3的外周表面或内周表面，其中磨石2与外周表面或内周面，并且通过砂轮2进一步喷射并供给研磨液23到被研磨部位，通过无心研磨法研磨环状工件3的外周面或内周面。根据该方法，在磨削循环的精加工步骤中，通过减小作用在环状工件3上的外力，能够减小环状工件3的外力的变形量，可以以低成本改进壁环形工件3。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2004322307A Superfinishing device and method, rolling element, and rolling bearing 审中-公开
标题翻译：超净装置和方法，滚动元件和滚动轴承
公开(公告)号：JP2004322307A
公开(公告)日：2004-11-18
申请号：JP2004047764
申请日：2004-02-24
申请人： Nsk Ltd , 日本精工株式会社
发明人： KAMAMURA ARIHIRO , IDE YOSHIRO , KARITA TOMOHARU , NAKAHARA IORI , MURAI TAKASHI , FUJII OSAMU , MIZUNO HIROKI
IPC分类号： B24B5/18 , B24B5/37 , B24B33/04 , B24B35/00 , F16C33/34
CPC分类号： F16C23/08 , B24B5/18 , B24B5/37 , B24B33/04 , B24B35/00 , F16C33/34
摘要： PROBLEM TO BE SOLVED: To form a curve having a crowning amount to smoothly change radii of curvature on an outer peripheral surface of a substantially cylindrical workpiece. SOLUTION: Driving rollers 2 and 3 rotating in the same direction are disposed to be parallel with each other. A plurality of projecting parts 5a, 5b and 5c having different radii of curvature Rr1, Rr2 and Rr3, respectively, along a shaft direction are formed at mutually faced positions of the driving rollers 2 and 3. A rolling element 4 rotated by being delivered between the driving rollers 2 and 3 is moved on tracks of different radii of curvature Rw1, Rw2 and Rw3 along the shaft direction. A superfinishing grinding tool 6 is provided to superfinish a rolling surface of the rolling element 4 by being pressed on the rolling surface of the rolling element 4 moving on the tracks of the different radii of curvature. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：形成在大致圆筒形的工件的外周面上平滑地改变曲率半径的隆起量的曲线。解决方案：沿相同方向旋转的驱动辊2和3彼此平行设置。在驱动辊2和3的相互相对的位置处形成有沿着轴向分别具有不同的曲率半径Rr1，Rr2和Rr3的多个突出部分5a，5b和5c。驱动辊2和3沿着轴方向在不同的曲率半径Rw1，Rw2和Rw3的轨道上移动。提供了一种超精加工的研磨工具6，其通过在滚动元件4的在不同曲率半径的轨道上移动的滚动表面上被按压来对滚动元件4的滚动面进行超精加工。版权所有（C）2005，JPO＆NCIPI

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