FIELD: machine-tool manufacture. SUBSTANCE: chain of line feed of article spindle head consists of blank assembly, adjustment link and tool assembly. Adjustment link is represented by hydraulic-pulse generator connected to hydraulic step motor through system of pipelines and to pump unit. Generator is coupled to article rotation drive, and step motor, to assembly of line feed of article spindle head. EFFECT: reduced specific amount of metal and increased accuracy of line feed chain. 1 dwg
