The invention discloses a
convertible clamp with three cutters for ultrasonic milling, impacting and rolling. The
convertible clamp comprises a milling
machine main shaft positioning mechanism, a clamp switching shell, a cutter changing driving wheel disc, a cutter mounting disc, a
clutch, a
clutch switching executing mechanism, a
Morse taper shank and three ultrasonic cutters. The upper end of the clamp switching shell is fixedly connected with a milling
machine main shaft through a milling
machine main shaft positioning mechanism; the cutter changing driving wheel disc is arranged at the lower end of the clamp switching shell; the cutter mounting disc is arranged on the cutter changing driving wheel disc; the three ultrasonic cutters are uniformly distributed on the cutter mounting disc and have 30-degree inclination angles towards the circle center of the cutter mounting disc, the ultrasonic
milling cutter can rotate, and the ultrasonic
impact cutter and the rolling cutter cannot move; the
Morse taper shank is fixedly connected with the milling machine main shaft; the
clutch switching executing mechanism is connected to the
Morse taper shank; the clutch is arranged between the clutch switching executing mechanism and the ultrasonic
milling cutter, the upper half part of the clutch is arranged on the clutch switching executing mechanism, and the
lower half part of the clutch is arranged on the ultrasonic
milling cutter; and the cutter changing driving wheel disc is used for driving the clutch switching executing mechanism to act.