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    RACEWAY GROOVE MACHINING METHOD, BEARING, BALL SCREW DEVICE, MACHINE, AND VEHICLE PRODUCTION METHOD
    1.
    发明公开
    RACEWAY GROOVE MACHINING METHOD, BEARING, BALL SCREW DEVICE, MACHINE, AND VEHICLE PRODUCTION METHOD 审中-公开

    公开(公告)号：EP3530407A1

    公开(公告)日：2019-08-28

    申请号：EP17861832.8

    申请日：2017-09-29

    申请人： NSK Ltd.

    发明人： YAMAMOTO Masahito ,  KOYAMA Hiroshi

    IPC分类号： B24B39/02 ,  B23G1/22 ,  B23P15/00 ,  F16H25/24

    摘要： There is provided a method for processing a raceway groove configured to circumferentially form a to-be-processed side raceway groove on a surface to be processed of a workpiece, the to-be-processed side raceway groove is configured to be brought into rolling contact with a rolling element, and the surface to be processed is a cylindrical circumferential surface. The method for processing a raceway groove includes: arranging a processing rolling element rotatably between the to-be-processed side raceway groove and a tool side circumferential surface which is opposed to the surface to be processed and which is a cylindrical circumferential surface of a machining tool; rotating the machining tool relatively with respect to the workpiece; and performing a burnishing process on the to-be-processed side raceway groove.

    METHOD AND SYSTEM FOR PRODUCING RING-SHAPED MEMBER FOR VEHICLE, AND SYNCHRONIZER RING
    2.
    发明公开
    METHOD AND SYSTEM FOR PRODUCING RING-SHAPED MEMBER FOR VEHICLE, AND SYNCHRONIZER RING 审中-公开
    生产车用环形元件和同步环的方法和系统

    公开(公告)号：EP3318345A1

    公开(公告)日：2018-05-09

    申请号：EP16875774.8

    申请日：2016-12-16

    申请人： NSK Ltd.

    发明人： KOBAYASHI Kazuto ,  KOYAMA Hiroshi ,  YASUDA Yuu

    IPC分类号： B21D28/28 ,  B21D28/00 ,  B21D53/26 ,  B21K1/30 ,  F16D23/06

    CPC分类号： B21D28/36 ,  B21D28/00 ,  B21D28/28 ,  B21D51/16 ,  B21D53/26 ,  B21K1/30 ,  F16D23/025 ,  F16D23/06 ,  F16D2250/0023

    摘要： Provided are a method and a system for producing a ring-shaped member, said method and system improving production efficiency. A punching process is carried out on an axial intermediate part of a first intermediate annular material (25) so as to produce a pair of ring-shaped members (a first ring-shaped member 28A and a second ring-shaped member 28B). A punching step comprises a step in which a first punching process is carried out over a first range of the axial intermediate part in the circumferential direction, and a step in which a second punching process is carried out over a second range of the axially-oriented intermediate part, which is at least partially different than the first range, in the circumferential direction. The first punching process is carried out such that at least one tab (15a, 15b) is formed. The second punching process is carried out such that at least one separate tab (15a, 15b) is formed, thereby producing the pair of ring-shaped members (28A, 28B).

    摘要翻译： 提供了一种用于制造环形构件的方法和系统，所述方法和系统提高了生产效率。 在第一中间环形材料（25）的轴向中间部分上进行冲压加工，以制造一对环形部件（第一环形部件28A和第二环形部件28B）。 冲压步骤包括以下步骤：其中在圆周方向上的轴向中间部件的第一范围上执行第一冲压过程，以及在第二范围的轴向方向上执行第二冲压过程的步骤 中间部分在圆周方向上至少部分地不同于第一范围。 执行第一冲压工艺，使得形成至少一个翼片（15a，15b）。 进行第二次冲压过程，使得形成至少一个单独的凸片（15a，15b），由此制造一对环形件（28A，28B）。