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    • 3. 发明授权
    • Method for the production of a spindle nut of a spherical thread drive mechanism
    • 一种用于生产球形螺纹驱动机构的主轴螺母的方法
    • US07107805B2
    • 2006-09-19
    • US11053578
    • 2005-02-08
    • Jürgen OsterlängerManfred KrausTorsten KellerThomas Motz
    • Jürgen OsterlängerManfred KrausTorsten KellerThomas Motz
    • B21J7/16B21C25/02F16H1/24
    • F16H25/2223B21C37/292B21H3/08B21H7/187B21J5/12B21K1/56Y10T29/49636Y10T29/49995
    • Method for the production of a spindle nut (3) of a spherical thread drive mechanism, whereby the spindle nut (3) has at least one screw-shaped track (4) formed as a single piece on its inner circumference, whose threads (38) are limited by shoulders (6). The shoulder (6) is interrupted by a deflecting recess (23) at at least one deflecting position, in order to deflect balls (13) out of one thread into an adjacent thread (38). The method includes locating a tool arbor (56) in a hollow blank (57), whereby the tool arbor (56) has on its outer circumference a counter profile of the screw-shaped track (4) and a projecting part (59) for each deflecting recess. A tool operates on and reshapes the blank (57) from the exterior by exercising radial forces (F), whereby during the reshaping process the inner circumferential surface of the blank (57) is shaped according to the counter profile and to the projecting part (59) of the tool arbor (56) such that the screw-shaped track (4) and the deflecting recess (23) are formed.
    • 一种用于生产球形螺纹驱动机构的主轴螺母(3)的方法,由此所述主轴螺母(3)具有在其内圆周上形成为单件的至少一个螺旋形轨道(4),其螺纹(38 )由肩膀(6)限制。 肩部(6)在至少一个偏转位置处由偏转凹部(23)中断,以将球(13)从一个螺纹中偏转到相邻的螺纹(38)中。 该方法包括将工具心轴(56)定位在中空坯件(57)中,由此工具心轴(56)在其外圆周上具有螺旋形轨道(4)的对向轮廓和用于 每个偏转凹槽。 工具通过行使径向力(F),从外部操作和重塑坯料(57),由此在整形过程中,坯料(57)的内圆周表面根据对向轮廓和凸出部分( 59),使得形成螺旋形轨道(4)和偏转凹槽(23)。