FIELD: manufacture of machine tools, namely for cutting cone gear wheels with helical teeth. SUBSTANCE: rolling out circuit includes hydraulic step motors kinematically joined with drive units of blank and tool. Each step hydraulic motor is controlled by means of separate hydraulic pulse generator. Rotating sleeves of slide gates of said generators are mutually connected by means of non-power gear reduction unit of changeable gear wheels. EFFECT: cutting gear wheels with helical teeth with use of hydraulic rolling out circuit, enhanced accuracy of working due to reduced length of kinematic circuit after removing several mechanical links of said circuit, lowered metal consumption, possibility of regulating gear ratio of rolling out circuit and working gear wheels with desired number of teeth. 1 dwg
