MACHINE-TOOL Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: machine-tool has self-acting force head 5 with movable housing 6, force hydraulic heads 7 and 8, and additional hydraulic cylinders 10 and 11. The additional cylinders are mounted in pair so that their rods are opposite to each other and rigidly connected with the movable housing of the force self-acting head. When head 5 performs a cycle, quick feeding - working feeding - quick removing, hydraulic heads 7 and 8 perform analogous working cycle since the under-piston and above-piston spaces of each of additional hydraulic cylinders 10 and 11 are in communication with respective working spaces of the hydraulic cylinder for feeding the force hydraulic head. EFFECT: improved design. 3 dwg