Driving connection arrangement and sealing arrangement for a live tool and method for sealing the same

摘要

The present invention is directed to a live tool assembly adapted to be received within a machine tool assembly. The live tool includes a coupling assembly for transferring rotational motion of a drive gear assembly to a drive shaft assembly and a backlash adjustment assembly for adjusting the backlash between the drive gear assembly and the drive source of the machine tool. The live tool assembly further includes a sealing assembly for preventing contaminants from entering an interior of the housing by maintaining a positive pressure differential between the interior of the housing and an exterior of the live tool assembly.