SPINDLE HEAD WITH TWO ROTATING HALVES FOR MACHINE TOOLS Russian patent published in 2006 - IPC B23Q1/54 

FIELD: machine tools manufacture, namely spindle heads with two rotating halves for machine tools.

SUBSTANCE: head includes first electric motor directly transmitting rotation and providing rotation of first half of head relative to connection member and second electric motor directly transmitting rotation and providing rotation of second half of head relative to first half of head. Stator of first electric motor is stationary mounted on connection member; rotor is secured to first half of head. Stator of second electric motor is stationary secured to first half of head; its rotor is secured to second half of head. Spindle head also includes first and second pickups for controlling angular position of first half of head relative to connection member and angular position of second half of head relative to its first half. Invention provides gradual continuous orientation of tool axis in any spatial direction at high accuracy of positioning, at eliminating gap between and friction between members.

EFFECT: possibility for positioning tool just near surface of worked part, improved introducing of tool and its spindle into any cavities of worked part, possibility for working undercuts.

3 cl, 4 dwg