Three-dimensional ultrasonic elliptical vibration cutting device

A three-dimensional ultrasonic elliptical vibration cutting device, comprising a two-dimensional ultrasonic vibration transducer, an asymmetric ultrasonic horn comprising an asymmetric structure, and a cutter, wherein:

• the cutter is installed at an output end of the asymmetric ultrasonic horn through a set bolt, the two-dimensional ultrasonic vibration transducer is configured to output an ultrasonic longitudinal-flexural complex vibration that comprises a first-phase flexural vibration along a x-direction and a longitudinal vibration along a y-direction,
• the asymmetric ultrasonic horn is configured to decompose the longitudinal vibration output by the two-dimensional ultrasonic vibration transducer into a first part and a second part, and to transmit the first part of the longitudinal vibration along the y-direction, and to convert the second part of the longitudinal vibration into a second-phase flexural vibration along a z-direction, and to output a three-dimensional ultrasonic elliptical vibration trajectory on the cutter in combination with the first-phase flexural vibration output by the two-dimensional ultrasonic vibration transducer, and
• wherein a diameter of an input end of the asymmetric ultrasonic horn is smaller than a diameter of the two-dimensional ultrasonic vibration transducer, and the asymmetric ultrasonic horn comprises the asymmetric structure, the asymmetric structure is a stepped structure asymmetrically arranged between the input end and a tip end of the asymmetric ultrasonic horn relative to a rotating body and is configured to amplify the ultrasonic vibration.