Constraint system of sectors of a device for producing an airplane fuselage

摘要

A constraint system of sectors of a device (2) for producing an airplane fuselage. The lamination mandrel comprises a plurality of sectors (12) angularly spaced about the axis (7) and mobile between: an expanded lamination position in which the sectors (12) have greater rectilinear edges (13) parallel to the axis (7) arranged side by side and the external surfaces of the sectors (12) opposite the axis (7) define together said external surface (5); and a contracted disassembling position in which at least part of the sectors (12) approaches the axis (7) moving away from the trace of the surface (5) to allow extraction of the mandrel (4) from the structural section of the airplane. A constraint system is provided between each sector and the sectors adjacent thereto which guarantees a predetermined arrangement of the first sector (12-A) with respect to the second sector (12-B) adjacent thereto, preventing any translation along two directions (x-y) which lie in an adjustment plane (PZ) perpendicular to an axis RD which extends radially from the symmetry axis (7) to the external surface (5).