FIELD: machine tool manufacture, working of gear wheels.
SUBSTANCE: machine tool includes blank unit, tool unit and circuit for matching rotation of tool and blank. In order to enhance accuracy of working, rolling around circuit includes hydraulic link having hydraulic step motors kinematically coupled through worm gearing with tool and with blank and communicated through pipelines with hydraulic impulse generators having slide spools with designed number of working slits. Slide spool of hydraulic impulse generator of blank rotation drive may be rotated from hydraulic motor. Slide spool of tool rotation drive is connected with first slide spool by means of swing frame of changeable gear wheels. Gear ratio of circuit for matching rotation of blank and tool corresponds to relation of numbers of working slits of slide spools of respective hydraulic impulse generators.
EFFECT: enhanced accuracy of gear shaping.
1 dwg
