Hiwin Technologies Corporation

Ying-Ju Lin

Lung-Yu Chang

Min-Hsiu Wu

Chia-Ming Yang

Ping-Huan Hsieh

Hung-Chih Hsu

A ball screw structure with detection function includes a screw shaft having an external screw groove; a nut mounted to the screw shaft to be movable in an axial direction of the screw shaft and having an internal screw groove, which corresponds to the external screw groove of the screw shaft to define a loading channel between the internal screw groove of the nut and the external screw groove of the screw shaft; a ball assembly movable, through rolling, in the loading channel; and a recirculation member directly mounted to the nut and provided thereon with a microcontroller and a sensor to detect a rotation state of the screw shaft inside the nut and further formed with a recirculation passage in communication with the nut to allow the ball assembly to move and recirculate therethrough.

Ball screw structure with detection function

A ball screw with support devices includes a nut base having two sides equipped with the support devices for preventing the screw from deflection. Two runner structures are provided near two ends of the screw. The runner structure includes a driving wheel and a driven wheel having different diameters and concentrically installed. The nut base is connected to the driving wheel via an active connecting element for driving the driving wheel to rotate. The driven wheel moves with the driving wheel and is connected to the support devices via passive connecting elements so that the support devices and the nut displace synchronously. By controlling a diameter ratio between the driving and driven wheels, the nut and the support devices displace with proportional speeds, thereby allowing the support devices to always stay at the two sides of the nut as designed and provide reliable support.

Ball screw with support devices

A support structure for a ball screw includes a base, two pivot seats mounted on the base, a screw disposed between the two pivot seats, at least one guide rail fixed on the base, a first guide block fixed on the base and provided with a first slanting surface, a second guide block fixed on the base and provided with a second slanting surface, a support seat slidably mounted on the guide rails and located below the screw, a nut unit sleeved on the screw and slidably disposed on the guide rails, and a drive assembly fixed at the nut unit. The support structure for a ball screw has a simple structure, a low maintenance cost and a longer service life.

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Taichung, Taiwan

Ying-Ju Lin