Patent ID: 8885789

Claim:
A device for measuring and correcting a parallelism error of the upper plug end of a nuclear fuel rod placed on a rack, said device comprising: a location with longitudinal axis for receiving said fuel rod, device for measuring a parallelism error and corrector for correcting said error, said corrector being arranged opposite the measuring device relative to the longitudinal axis of the location of the fuel rod, in order to allow a measurement of the parallelism error during correction of said error, positioner for positioning said device relative to the fuel rod, said positioner being intended to cooperate with the fuel rod and the rack, the rack comprising two parallel supports, spaced apart from each other and each supporting a longitudinal end of said fuel rod, said positioner comprising two horseshoe-shaped pieces whereof the inner ends are intended to rest on the fuel rod, the two pieces being spaced apart by a given distance, so as to allow the overlap of the support of the rack on which the upper plug end of the fuel rod rests when the device is put into place, said support having a thickness substantially equal to the distance separating the two horseshoe-shaped pieces, holder for holding the fuel rod while making it possible to rotate said fuel rod around its longitudinal axis, said holder being positioned between the positioned and the measurement device and corrector, said holder comprising a lower claw and an upper claw intended to grip the fuel rod, the lower claw forming a reference to measure the parallelism error.