CUTTING HEAD FOR MILLING INNER THREAD Russian patent published in 2011 - IPC B23G5/18 

FIELD: process engineering.

SUBSTANCE: proposed cutting head comprises body with cutting plate and vibration killer arranged at body end face. Body has lengthwise bore to feed lubricant-coolant via appropriate nozzle to machined part inner surface, opposite cutting plate position. Vibration killer arranged nearby cutting plate is made up of shut-off valve consisting of spring-loaded shaft with crosswise bore and thrust roller to reciprocate along body transverse axis. Note here that roller is mounted to revolve and come in intermittent contact with machined part surface, to move together with aforesaid shaft and to align shaft bore with body bore to feed lubricant-coolant in milling zone.

EFFECT: higher vibration resistance.

5 dwg