A fastening structure for fastening a driven member to a wave gear device unit and a wave gear device unit

摘要

The holding plate (6) is temporarily fixed to the boss (4 c) of the cup-shaped flexible external gear (4) of the wave gear device unit (1). The second arm (22) as the driven member is attached to the outer end face (7a) of the output flange (7) of the wave gear device unit (1) by the fastening bolt (24). The fastening bolt (24) is pressed from the bolt insertion hole (23) of the second arm (22) through the flange side bolt insertion hole (16) and the boss side bolt insertion hole (15) Screw in the tapped hole (14) of the screw. It is possible to realize a fastening structure that facilitates drilling of the output flange and fastens the driven member to the harmonic gear device unit in which the number of fastening bolts required for fastening the boss, the output flange, and the driven member is small.