Piezoelectric micro-control self-loading double-frequency ultrasonic composite honing cutter for eccentric main shaft

The invention relates to the technical field of honing machining, in particular to a piezoelectric micro-control self-loading double-frequency ultrasonic composite honing tool for an eccentric main shaft. The device comprises a tool apron, a plurality of piezoelectric ceramic pieces A, an end cover, a fastening bolt A, an amplitude-change pole, a flexible screw rod, an oilstone strip, two gyroscopes, a front oilstone seat, two fastening bolts B, two piezoelectric ceramic pieces B, a rear oilstone seat, a plurality of piezoelectric ceramic pieces C, a front transmission disc, a fastening bolt C, two strain sensors, a rear transmission disc and two fastening bolts D, a blind screw hole A is formed in the center of the upper end face of the tool apron, a blind screw hole B is formed in the center of the lower end face of the tool apron, a fastening hole A is formed in the center of the end face of each piezoelectric ceramic piece A in a penetrating mode, and the piezoelectric ceramic pieces A are stacked from bo