Disassembling method of mandrel used for manufacturing composite material structure and disassembling apparatus of mandrel

摘要

The present invention provides a technique which can disassemble a mandrel having a substantially cylindrical shape and being dividable into a plurality of segments, easily and efficiently. The disassembling method comprises, in the mandrel adhesively attached with a composite material structure on an outer peripheral surface thereof, a rotation step of rotating the pair of support rings along with the mandrel to position a segment which is a detached target to an uppermost portion; and a segment detaching step of detaching the segment which is the detached target positioned at the uppermost portion, from the pair of support rings; wherein in the segment detaching step, the segment which is the detached target is moved in a vertically downward direction to a position inside of the mandrel, between the pair of support rings, and is carried out from between the pair of support rings.

主权项

1. A disassembling apparatus of a mandrel, which disassembles the mandrel including a plurality of segments assembled in a tubular shape, the plurality of segments having a substantially rectangular shape and being parts into which the mandrel is divided along a center axis direction, the mandrel being in a state in which the segments are joined together between a pair of support tings facing each other, the segments are each fastened to the support rings to form the tubular shape, and the mandrel is adhesively attached with a composite material structure on an outer peripheral surface thereof, the apparatus comprising:
a rail body inserted into inside of the mandrel through a hollow space of the pair of support rings; a ring rotation drive section for rotating each of the support rings to rotate the mandrel to position one of the segments which is a detached target, at an uppermost portion of each of the support rings; a vertical movement mechanism which is provided on the rail body and configured to lift up the segment which is the detached target, which is positioned at the uppermost portion, along a vertical direction, support the segment, then move the segment detached from the support rings, in a vertically downward direction, and position the segment inside of the mandrel; and a horizontal movement mechanism which is provided with the rail body and configured to horizontally move the segment from a rear end of the rail body toward a tip end of the rail body to carry out the segment from between the pair of support rings.