Multi-shaft thread synchronous tightening control method

The invention discloses a multi-shaft thread synchronous tightening control method. The multi-shaft thread synchronous tightening control method comprises the steps that all to-be-fastened bolts are tightened; a tail end tool accelerates to rotate to an idle rotating speed; the thread part of each to-be-fastened bolt is detected; the fitting points of all the to-be-fastened bolts are detected; the to-be-fastened bolts completing the fitting point detection stage enter the fitting stage; the to-be-fastened bolts completing the fitting stage enter the reverse screwing stage; the to-be-fastened bolts completing the reverse screwing stage enter the screwing stage; and all the to-be-fastened bolts are stopped from being tightened. In the tightening process of the to-be-tightened bolts, all tightening shafts must be in the same working stage at the same moment, only when all tightening shafts meet the judgment conditions of the working stage, the next working stage operation can be carried out, and when any tighten