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73 条记录 (耗时 0.013 秒)

    A SUPERFINISHING METHOD FOR A BEARING ROLLER, AND A SUPERFINISHING DEVICE FOR A BEARING ROLLER
    1.
    发明申请
    A SUPERFINISHING METHOD FOR A BEARING ROLLER, AND A SUPERFINISHING DEVICE FOR A BEARING ROLLER 审中-公开

    公开(公告)号：US20190076977A1

    公开(公告)日：2019-03-14

    申请号：US15773611

    申请日：2016-10-27

    申请人： NTN CORPORATION

    发明人： Kohei HIGASHI ,  Shinji FUSHIHARA ,  Akinori OTSUKA

    IPC分类号： B24B5/24 ,  F16C33/36

    摘要： A superfinishing method for a bearing roller involves installation of a pair of parallel feed drums. The feed drums have guide thread surfaces each continuing in a spiral shape on an outer periphery, and each being driven to rotate about respective center axes. The feed drums through-feed a workpiece to be formed into a bearing roller while supporting and rotating the workpiece with the guide thread surfaces opposed to each other. The superfinishing method includes using a grinder to process an outer peripheral surface of the workpiece passing between the feed drums, varying a thread bottom angle of the guide thread surface based on positions along the feed drums in an axial direction, and superfinishing straight and logarithmic portions at both ends of the straight portion of a rolling surface of the bearing roller by one through-feed of the workpiece passing between the feed drums.

    Machining apparatus
    2.
    发明授权
    Machining apparatus 有权

    公开(公告)号：US09873177B2

    公开(公告)日：2018-01-23

    申请号：US15044860

    申请日：2016-02-16

    申请人： JTEKT CORPORATION

    发明人： Atsushi Kuno ,  Kenji Ohgaki ,  Fumikazu Hirakawa

    IPC分类号： B24B5/24

    CPC分类号： B24B5/24 ,  B24B5/245 ,  B24B5/30 ,  B24B5/307 ,  B24B35/00 ,  B24B41/005 ,  B24B41/067

    摘要： A machining apparatus is of an in-feed type configured to machine an outer peripheral surface of a rotating tapered roller, and includes a rotating mechanism having a lateral pair of rollers on which the tapered roller is mounted, the rotating mechanism rotating the pair of rollers, and a grinding stone that is brought into contact with the outer peripheral surface of the tapered roller mounted on the pair of rollers. Each roller of the pair of rollers is shaped like a truncated cone. Small-diameter portions of the pair of rollers come into contact with a small-diameter portion of the tapered roller. Large-diameter portions of the pair of rollers come into contact with a large-diameter portion of the tapered roller.

    Dressing apparatus for an electrode tip
    3.
    发明授权
    Dressing apparatus for an electrode tip 失效
    电极头敷料装置

    公开(公告)号：US5445481A

    公开(公告)日：1995-08-29

    申请号：US98800

    申请日：1993-07-29

    申请人： Toshiharu Nakajima ,  Tadashi Goto ,  Shinji Hoshino

    发明人： Toshiharu Nakajima ,  Tadashi Goto ,  Shinji Hoshino

    IPC分类号： B23B5/00 ,  B23B5/16 ,  B23K11/30 ,  B24B5/24 ,  B23C3/12

    CPC分类号： B23K11/3063 ,  B23B5/00 ,  B23B5/166 ,  Y10T408/172 ,  Y10T409/304256

    摘要： In an electrode tip dressing apparatus, a relatively weak pressure is applied on an electrode tip at the electrode setting, then a strong pressure is applied at finishing, and finally a lowered pressure is applied after a predetermined time period. The blade holder is provided with a clearance over the entire length of the blade for discharging the chips produced during machining of the electrode tip, thereby preventing blinding of blades caused by cutting chips.

    摘要翻译： 在电极末端修整装置中，在电极设定时在电极头施加相对较弱的压力，然后在精加工时施加强大的压力，最后在预定时间段之后施加降低的压力。 叶片保持器在叶片的整个长度上设置有间隙，用于排出在电极末端加工期间产生的切屑，从而防止由切屑引起的叶片的致盲。

    Method for regrinding a worn valve
    10.
    发明授权
    Method for regrinding a worn valve 失效
    磨损磨损阀的方法

    公开(公告)号：US5159786A

    公开(公告)日：1992-11-03

    申请号：US737777

    申请日：1991-07-30

    申请人： L. Carl Amundsen

    发明人： L. Carl Amundsen

    IPC分类号： B24B5/22 ,  B24B5/24 ,  B24B15/04

    CPC分类号： B24B5/24 ,  B24B15/04 ,  B24B5/22

    摘要： A centerless valve regrinder for resurfacing a worn valve having a face, a tulip connected to the face, a valve stem connected to the tulip, the stem having an axis, a first notch worn into the stem at a location spaced from the tulip, and a second notch worn into the stem at a second location spaced from a distal end of the stem. The regrinder is comprised of a power-driven means for resurfacing said valve face, and a chuck for supporting the valve stem in such an orientation as to cause contact between the valve face and the means for resurfacing at the angle of bevel of the valve face. The chuck is also comprised of a wheel for rotating the stem about its axis and simultaneously drawing the valve face into contact with the means for resurfacing. The chuck is further comprised of two fixed supports that are in parallel orientation and of sufficient length to cradle and support the stem from respective points adjacent the tulip to respective points past the first notch, and preferably past the second notch. Preferably, there is no stop member to contact the distal end of the stem to limit the regrinding.

    摘要翻译： 一种无心阀重新研磨机，用于重新磨合具有面的磨损的阀，连接到表面的郁金香，连接到郁金香的阀杆，具有轴线的阀杆，在与郁金香间隔开的位置处磨损到杆中的第一切口，以及 在与所述杆的远端间隔开的第二位置处穿入所述杆的第二凹口。 该回收器由用于重新表面的所述阀面的动力驱动装置和用于以这样的方向支撑阀杆的卡盘，以使阀面与用于在阀面的斜面角度处重新铺展的装置之间的接触 。 卡盘还包括用于使阀杆围绕其轴线旋转并同时拉动阀面与用于重新铺展的装置的轮的轮。 卡盘还包括两个固定支撑件，它们处于平行取向并且具有足够的长度以支撑并且将杆从邻近郁金香的相应点支撑到相对于经过第一凹口的点，并且优选地超过第二凹口。 优选地，没有止动构件接触杆的远端以限制再研磨。