Swiveling actuator

Disclosed is a swivel actuator, the swivel actuator including a driving motor (10), a linear screw shaft (20) rotating in conjunction with rotational force of the driving motor (10), a nut member (30) reciprocating to a lengthwise direction of the linear screw shaft (20) in response to the rotation of the linear screw shaft, a lever member (3), one end of which being rotatably coupled to the nut member (30) and the other end being connected to a rotating counterpart, and an elastic member (32) arranged at a coupled position between the nut member (30) and the lever member (3) to maintain a coupling between the nut member (30) and the lever member (3) by applying elastic restoring force to the lever member (3).