| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology of easily assembling a roughly cylindrical mandrel which is used e.g. for manufacturing a body part of an aircraft, etc., and constituted to be dividable into a plurality of segments, with high positional accuracy. <P>SOLUTION: In a segment fixing process, one segment to be fixed is fixed to one specific fixing portion among a plurality of fixing portions set along a pair of oppositely disposed support rings. In a rotation process, the support rings are rotated to position the specific fixing portion at the highest parts of the support rings before the segment fixing process. In the segment fixing process, the segment to be fixed is disposed between the respective support rings, and after elevating the segment to be fixed to a height corresponding to the specific fixing portion along the vertical direction, it is fixed to the support rings. <P>COPYRIGHT: (C)2011,JPO&INPIT |
