Deep hole internal grinding machine

The utility model discloses a deep hole internal grinding machine, a structure of an essay in lathe bed, smooth saddle, motor supporting frame, bistrique support frame, work piece support frame and grinding machine, motor supporting frame installs the bistrique motor in the left side, installs the internal grinding head on the bistrique support frame, and work piece support frame right side fixed mounting has the motor, installs the work piece (holding) chuck on the left of the work piece support frame, the work piece (holding) chuck links with the output shaft of motor, and the internal grinding head links with the output shaft of bistrique motor, the internal grinding head includes has the bistrique main shaft through bearing assembly in the main shaft mount pad by the main shaft mount pad, and the bistrique main shaft is the step shaft, and the left and right end of bistrique main shaft all stretches out the main shaft mount pad, bistrique main shaft right -hand member fixedly connected with emery wheel mount pad, and grinding wheel is installed in the embedding on the emery wheel mount pad. Deep hole internal grinding machine guarantees effectively that the bistrique main shaft rotates the precision, has that the bistrique vibrations are little, stability is good, processes that surface quality is high, with low costs, production efficiency is high and advantage such as longe -lived.