Ball assembly device and ball assembly method for fixed constant velocity universal joint

Abstract

The inner connector member 3 is tilted from the side with a smaller actuation angle θ to the side with a larger actuation angle θ, causing at least one of the plurality of grooves 5a of the cage 5 to protrude from the outer connector member 2, and the ball is embedded in the groove 5a. Then, the inner connector member 3 is tilted from the side with a larger actuation angle θ to the side with a smaller actuation angle θ, causing the ball 4 to enter between the track groove 7 of the outer connector member 2 and the track groove 9 of the inner connector member 3. At this time, the cage clamping part 23 rotates around the tilting center of the inner connector member 3 while maintaining a tilting angle α of 1 / 2 of the actuation angle θ, and abuts against the cage 5 in the tilting direction.

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