Embedded damping vibration attenuation turning tool holder for deep cavity machining and method

An embedded damping vibration attenuation turning tool holder for deep cavity machining, comprising

• a tool holder and a damper, wherein:
• one end of the tool holder is connecting to a turning blade;
• a side surface of the tool holder is provided with a square cavity;
• the damper is in interference fit in the square cavity;
• the damper comprises a mass block, an elastic member and a piezoelectric ceramic at least one surface of surfaces of the mass block being in contact with an inner wall of the square cavity is connecting to the piezoelectric ceramic;
• the elastic member is arranged between the piezoelectric ceramic and the mass block;
• and the piezoelectric ceramic absorbs and converts vibration generated by the tool holder into electric energy;
• the damper is slidably connecting to the square cavity;
• a spring rod is arranged between the damper and an inner wall of an axial end of the square cavity;
• and the damper is capable of axially sliding along the tool holder to adjust a relative position of the square cavity.