Adjustable low-cutting-stress rotary ultrasonic machining device

The utility model relates to an adjustable low cutting stress rotary ultrasonic machining device which comprises a rotary ultrasonic machining device and an adjusting structure, the adjusting structure is arranged at the top of the rotary ultrasonic machining device, and a supporting structure is arranged at the bottom of the adjusting structure. The adjusting structure comprises a top plate fixedly mounted at the top of the supporting structure, the left side wall of the top plate is fixedly connected with a stepping motor, the output end of the stepping motor is fixedly connected with a threaded rod, the outer side of the threaded rod is in threaded connection with a moving rod, and the bottom of the top plate is movably connected with a connecting plate; the bottom of the connecting plate is fixedly connected with a first electric push rod, and the bottom end of a piston rod of the first electric push rod is fixedly connected with a supporting plate. According to the adjustable low-cutting-stress rotary ul