DRILLING SYSTEM AND METHOD

摘要

The invention relates to a drilling system, particularly for two assemblies on which the system is mounted. The system enables the drilling of holes through an overlap area, carried out by means of a drilling tool extending through a locking aperture (31) provided on a tool stand (30) of the drilling system, the drilling tool including a bearing mandrel (51) and an expandable ring (56) closely fitting the mandrel along a tapered contact surface (53). According to the invention, a relative movement is applied between the expandable ring and the mandrel so as to cause, after locking the ring into the locking aperture, a movement of the bearing mandrel against the overlap area, through the locking aperture, and in the direction of said overlap area so as to exert pressure on the latter by moving said drilling tool relative to said tool stand via a slide connection.