Pulse impact tool for finishing internal surfaces of revolution in blanks

A pulse-impact tool for finishing internal surfaces of revolution in blanks, installed with a provision for linear motion along the geometrical axis of the machined surface comprising:

• a casing in the form of a body of revolution;
• at least one circular groove made on the external side surface of the casing;
• bodies of revolution installed in the groove with a provision for moving along the groove and rotating around their own geometrical axis;
• the casing provided with a central axial hole;
• at least one channel leading from the hole in the casing, arranged in a plane transverse to the base of the groove, directed practically tangentially to the base of the groove and used to deliver fluid under pressure to the bodies of revolution which move along the groove and are rotated by the fluid around their own axes;
• a cage arranged concentrically with and around the groove;
• working elements accommodated in the cage with a provision for contacting the bodies of revolution and colliding with the bodies of revolution during tool operation;
• the working elements having geometrical axes which lie in one and the same plane with the geometrical axes of the bodies of revolution.