HIGH-SPEED MOTOR SPINDLE FOR METAL CUTTING MACHINES Russian patent published in 2016 - IPC B23B19/02 B24B41/04 B23Q5/04 

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Motor spindle includes housing, spindle running in housing with possibility to run in bearings and with mandrel to tool clamping mechanism installed inside it on side of front bearing support, motor, which rotor is located on spindle shaft, and stator is in housing, stator cooling system and bearing supports to be connected to coolant supply station, vibration sensor installed in housing, and temperature sensors mounted on bearing supports. At that, it is equipped with additional temperature sensor arranged on stator, and digital control device, and cooling system is made separate for stator and bearing supports and is equipped with cooling intensity regulators for each of them. Vibration sensor is made with possibility of measuring vibration acceleration. Digital control device is connected with temperature sensors and vibration transducer, as well as with coolant feed and stator and bearing supports cooling intensity regulators.

EFFECT: higher efficiency and service life of motor spindle.

2 cl, 3 dwg, 1 tbl