Rotary shaft locking device, machining head, and multi-tasking machine

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12263551
APP PUB NO 20230286089A1
SERIAL NO

18317096

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Importance

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Abstract

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A rotary shaft locking device includes a rotary shaft, a first angular contact ball bearing, a support, and an actuator. The rotary shaft is rotatable about a first axis and has a first contact surface. The first angular contact ball bearing includes an inner ring connected to the rotary shaft, an outer ring, and a plurality of balls disposed between the inner ring and the outer ring. The support has a second contact surface and rotatably supports the rotary shaft via the first angular contact ball bearing. The actuator is configured to move the rotary shaft and the inner ring with respect to the support and the outer ring in a first direction parallel to the first axis so that the first contact surface contacts the second contact surface to prohibit the rotary shaft from rotating and so that precompression that acts on the plurality of balls is reduced.

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Patent Owner(s)

Patent OwnerAddress
YAMAZAKI MAZAK CORPORATION1-131 TAKEDA OGUCHI-CHO NIWA-GUN AICHI 480-0197

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakamura, Shinya Niwa-gun, JP 166 1705
Sasaki, Hiroto Niwa-gun, JP 51 552
Sato, Kimihiko Niwa-gun, JP 59 653

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