VIBRATION-TYPE PRESSING-IN APPARATUS Russian patent published in 2002 - IPC

FIELD: assembling processes, for example assembling by pressing-in shaft-sleeve type parts. SUBSTANCE: apparatus includes base, pushing unit, power source, main and additional ultrasonic oscillation concentrators. The last are in the form of sleeves with conical and cylindrical portions on inner surface; their end has inner surface. On inner surface of sleeve end second- stage concentrators are mounted. Main and additional converters are mounted on ends of second-stage concentrators. EFFECT: enhanced operational efficiency of apparatus due to increased degree of concentration of ultrasonic energy. 1 dwg _