PLANETARY HEAD Russian patent published in 2001 - IPC

FIELD: plastic metal working, particularly, working by surface plastic deformation of incomplete spherical surfaces of machine parts, for instance, automobile ball pins. SUBSTANCE: planetary head has a mandrel, bushing, loading mechanism and rolling planetary tool. The latter is made in the form of backup ring with race and cage with deforming members. Backup ring is installed in bushing for free rotation and displacement in plane square to axis of planetary head. Cage is installed in bushing for receiving rotary motion with angular velocity of rolling. Bushing is freely fitted on mandrel for limited displacement in axial direction. Rotary motion given by machine spindle to cage of rolling tool allows working under conditions when angular velocity of rolling equals angular velocity of machine spindle that provides for higher accuracy and efficiency of working with planetary heads of spherical surfaces. EFFECT: higher efficiency. 1 dwg