MACHINE TOOL FOR STRAIGHTENING VALVE Russian patent published in 2002 - IPC

FIELD: machine engineering, particularly machines for cold straightening of short complex-shape parts such as valves of automobile engines. SUBSTANCE: distributing wheel of machine tool is connected with three blocks of wheels through internal gearing by means of wheels mounted coaxially with rollers on their lower ends. Rollers (one roller is joined with supporting disc) are mounted on rotary eccentric shafts arranged in tool unit and kinematically joined through gear wheels with rack mechanism. Machine tool includes stopper for valve head provided with pneumatic drive whose rod supports rolling bodies. Machine tool also includes carriage in the form of plate with prismatic guides and seat designed for basing valve head and arranged in bearing unit. EFFECT: simplified kinematics of drive system of tool unit, enlarged manufacturing possibilities. 5 dwg