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1.发明申请公开(公告)号：US20170314622A1
公开(公告)日：2017-11-02
申请号：US15510406
申请日：2015-09-11
Applicant: NSK LTD.
Inventor： Norihito AKANUMA , Hiroshi ARAKI
CPC classification number: F16C43/06 , B23P15/003 , B23P19/04 , B23P21/00 , B25J9/1687 , B25J9/1697 , F16C19/06 , F16C19/08 , F16C19/16 , F16C2322/59
Abstract: A plurality of balls inserted in the gap space between an outer ring raceway surface and an inner ring raceway surface are arranged at equally spaced intervals in a circumferential direction. The procedure of this ball arranging method for a ball bearing includes a ball holding step of holding any ball in the gap space by a ball holding mechanism provided at a tip of a robot arm and a ball moving step of moving the ball held by the ball holding mechanism along a pitch circle, and these steps are repeatedly performed for the plurality of balls based on a control program. Accordingly, the plurality of balls are arranged at equally spaced intervals on the pitch circle.
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2.发明申请公开(公告)号：US20190211879A1
公开(公告)日：2019-07-11
申请号：US16354703
申请日：2019-03-15
Applicant: NSK LTD.
Inventor： Norihito AKANUMA , Hiroshi ARAKI
CPC classification number: F16C43/045 , B05C1/027 , B05C5/0212 , B05C5/0216 , B05D1/002 , B05D1/26 , B23P15/003 , B23P21/00 , F16C19/06 , F16C33/6614 , F16C33/6622 , F16C33/6625 , F16C33/6629 , F16C43/04 , F16N11/00 , F16N37/003 , F16N2210/14
Abstract: A retainer is rotationally driven about a axis of a ball bearing, and convex areas having pockets provided therein along a ball pitch circle of the retainer and concave areas between adjacent pockets is detected by a sensor. Grease is discharged according to phases of the convex areas and concave areas in the rotationally driven retainer from a dispenser having grease discharge ports arranged to face an annular space.
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3.发明申请公开(公告)号：US20170363148A1
公开(公告)日：2017-12-21
申请号：US15510362
申请日：2015-09-11
Applicant: NSK LTD.
Inventor： Norihito AKANUMA , Hiroshi ARAKI
CPC classification number: F16C43/065 , B23P21/00 , B25J13/00 , F16C19/02 , F16C19/06 , F16C33/32 , F16C33/38 , F16C43/06
Abstract: A ball bearing assembly device includes: an inner and outer ring holding unit which holds an outer ring and inner ring in a state where an outer ring raceway surface and inner ring raceway surface are eccentric to each other on a same plane so as to form a gap space; a stocker; a robot arm; a ball holding mechanism which is disposed at a tip of the robot arm; and a control unit. The control unit controls the ball holding mechanism to hold any ball from the stocker, controls the robot art to transport the held ball to a ball insertion position in the gap space corresponding to a kind of ball bearing, and inserts the held ball into the gap space, which are repeated by the number of balls of the ball bearing.
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4.发明申请公开(公告)号：US20170314621A1
公开(公告)日：2017-11-02
申请号：US15510420
申请日：2015-09-11
Applicant: NSK LTD.
Inventor： Norihito AKANUMA , Hiroshi ARAKI
CPC classification number: F16C43/045 , B05C5/0212 , B05C5/0216 , B05D1/002 , B05D1/26 , B23P15/003 , B23P21/00 , F16C19/06 , F16C33/6614 , F16C33/6622 , F16C33/6625 , F16C33/6629 , F16N11/00 , F16N37/003 , F16N2210/14
Abstract: A retainer is rotationally driven about a axis of a ball bearing, and convex areas having pockets provided therein along a ball pitch circle of the retainer and concave areas between adjacent pockets is detected by a sensor. Grease is discharged according to phases of the convex areas and concave areas in the rotationally driven retainer from a dispenser having grease discharge ports arranged to face an annular space.
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