Flexspline protective structure and robot arm mechanism using same

摘要

A flexspline protective structure includes a first rotation member, a second rotation member and a plurality of fixing members. The second rotation member is sleeved on the first rotation member. The plurality of fixing members fix the first rotation member and the second rotation member together and are capable of breaking off in the event of jamming or other mischance to enable the second rotation member to rotate freely relative to the first rotation member. The disclosure presents a robot arm mechanism equipped with the flexspline protective structure.

主权项

1. A robot arm mechanism, comprising:
a first arm; a second arm; a reducer comprising:
a flexspline fixed to the first arm and a rigid gear engaging with the flexspline; and a flexspline protective structure, comprising:
a first rotation member fixed to the rigid gear;a second rotation member sleeved on the first rotation member; andat least one fixing member fixedly connecting the first rotation member and the second rotation member together,wherein the at least one fixing member is capable of breaking off to enable the second rotation member to rotate relative to the first rotation member freely when the second rotation member suffers an undue amount of torsion or an unexpected collision.