Patent Number: 8,584,548

Title: Robot arm assembly with harmonic drive

Abstract: A robot arm assembly includes a first link, a second link, and a joint rotatably connecting the first link and the second link. The joint includes an actuator mounted on the first link, a harmonic drive including a wave generator, a flex spline fitting over the wave generator, and a circular spline engaging the flex spline, and a belt drive between the actuator and the harmonic drive. The flex spline is fixed to the first link, the circular spline is fixed to the second link, and the belt drive transmits the rotational movement from the actuator to the wave generator.

Inventors: Gao; Dong-Wei (Shenzhen, CN), Liu; Zhen-Xing (Shenzhen, CN)

Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.

International Classification: B25J 17/00 (20060101)

Expiration Date: 1/19/12018