Robot cell for spot welding of grid spacers in nuclear reactor fuel assemblies

摘要

The invention relates to nuclear power engineering and can be used at the enterprises that manufacture fuel assemblies (FA) for nuclear power reactors.; Summary of the utility model: robotic module for resistance spot welding of spacer grids of a nuclear reactor fuel assembly comprising a welding machine, industrial robot mounted with hand welding tongs with electrodes, a control system, a table with placed on it a device fixing welded grating, made in the form mnogokulachkovogo chuck with jaws, covering the perimeter of the lattice, the outer profile of which follows the inner profile of the rim, the gaps provided in pa ONET welds between the jaws, the basic horizontal surfaces of the outer side of the jaws and the ring, mounted on them, with the possibility of free movement in the horizontal plane, the hexagon socket, which is a base for the outer surface of the rim, and the slots for free placing of the outer electrode provided on the ring in prostanovki spot welds, the ring is made of metal and provided with inserts of a non-conductive and non-magnetic material disposed on each side of the slots for communication mean free placement of the external electrode, the internal hexagon is formed a through the entire thickness of the ring, and in its corners and three inner faces on which no slots for free placing of the outer electrode are made vertical grooves, the basing pieces rim in a vertical plane is carried out on the base of the horizontal surfaces of the jaws and a robot control system input is connected directly to the ring.