ULTRASONIC INSTRUMENT FOR THE DEFORMATION TREATMENT OF SURFACES AND WELD JOINTS

摘要

The invention relates to ultrasonic instruments for deformation treatment. The instrument comprises a body (1) with a handle (19) and sliding guides (2) in which a hollow metal cylinder having a flange (3) and extension piece (4) is mounted so as to be axially displaceable in a reciprocating manner. An ultrasonic converter which is connected to an oscillation amplitude transformer (14) is fixed in the hollow metal cylinder. A holder (13) is fixed by the cylindrical end thereof on the extension piece. Hammer heads (12), the ends of which are in contact with the end of the transformer (14), are mounted in the holder so as to be displaceable in a reciprocating manner. A spring (16) is set into the flange of the hollow metal cylinder. A moveable bushing (9) is arranged between the spring and end surface of the body, said bushing being equipped with pins (10) which enter shaped grooves (11) formed in the body so as to be able to fix the bushing in three positions. The holder together with the hammer heads is fixed against axial displacement with the aid of a ball-type, spring-loaded catch, the ball (15) of which enters one of the hollows formed at the cylindrical end of the holder.