Assembling method of mandrel used for manufacturing composite material structure and assembling apparatus of mandrel

摘要

A technique which can assemble a mandrel having a substantially cylindrical shape and being dividable into plurality of segments, which is used for manufacturing, for example, a fuselage of an aircraft, with high position accuracy and an easy manner. In a segment fastening step, a segment which is a fastened target is fastened to a specified fastening portion which is one of a plurality of fastening portions set along a pair of support rings placed to face each other. In a rotation step, before the segment fastening step, the support rings are rotated so that the specified fastening portion is located at an uppermost portion of the support rings. In the segment fastening step, the segment which is the fastened target is placed between the support rings and lifted vertically up to a height corresponding to the specified fastening portion and then fastened to the support rings.

主权项

1. An assembling method of a mandrel for assembling a tubular mandrel by joining a plurality of segments together, the segments having a substantially rectangular shape, and the segments being parts into which the mandrel is divided along a center axis direction, the assembling method comprising:
a segment fastening step of fastening one of the segments, which is a fastened target, to a specified fastening portion, the specified fastening portion being one of a plurality of fastening portions set along a circumferential direction on each of a pair of support rings facing each other, wherein the fastened target is (i) placed between the pair of support rings; (ii) lifted up to a height position corresponding to the specified fastening portion along a vertical direction; and (iii) is fastened to the pair of support rings; and a rotation step of rotating the pair of support rings to position the specified fastening portion at an uppermost portion of each of the support rings before the segment fastening step, each of the pair of support rings being supported from below at two or more locations sandwiching a vertical line passing through a center axis of each of the pair of support rings, each of the pair of support rings being applied with a rotational force, and each of the pair of support rings being supported on a respective upper portion such that movement of each of the pair of support rings in a direction of the center axis is restricted.