High-frequency longitudinal-torsional composite vibratory sponge bar taking device and application

The invention particularly relates to a high-frequency longitudinal-torsional composite vibratory sponge bar taking device and application. The high-frequency longitudinal-torsional composite vibratory sponge bar taking device is mainly used for processing of an elastic layer on a transfer roller in a printing and copying machine. The high-frequency longitudinal-torsional composite vibratory sponge bar taking device comprises an ultrasonic generator, an ultrasonic transducer connected with the ultrasonic generator through a lead, at least one stage of a variable-amplitude pole connected with the ultrasonic transducer and a tubular cutter connected with the variable-amplitude pole, wherein the tubular cutter is in threaded connection with the connected variable-amplitude pole and comprises a connector connected with the variable-amplitude pole, a tube body with a cavity and a cutting edge, one end of the tube body is in threaded connection with the connector, the cutting edge is arranged at the other end of the tube body, and a circular-arc transitional structure is arranged at the connecting position of the tube body and the connector. A longitudinal-torsional composite vibratory transformational structure is arranged on the tube body. By the adoption of the technical scheme, bar taking on sponge is easily achieved in a high-frequency vibratory mode, the bar taking process is stable, the hole diameter accuracy is high, the wall surface of a hole is flat and damage-free, the product percent of pass is remarkably improved, and the production efficiency is obviously improved.