MACHINE ET PROCEDE POUR MEULER UNE GRILLE D'ESPACEMENT D'UN ENSEMBLE A COMBUSTIBLE NUCLEAIRE

A machine and a method for grinding a spacer grid of a nuclear fuel assembly. The machine includes a spacer grid holding unit, a first rectangular coordinates robot for grinding an outer surface of the spacer grid, a second rectangular coordinates robot for grinding a corner of the spacer grid, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HONG JUNG HWAN, KIM HANG RAE, KIM DEUK YEON, CHOI CHEOL HO, KIM CHANG KUG
Format:	Patent
Sprache:	fre
Schlagworte:	CHAMBERS PROVIDED WITH MANIPULATION DEVICES DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING HAND TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MANIPULATORS PERFORMING OPERATIONS POLISHING PORTABLE POWER-DRIVEN TOOLS TRANSPORTING
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Beschreibung
Zusammenfassung:	A machine and a method for grinding a spacer grid of a nuclear fuel assembly. The machine includes a spacer grid holding unit, a first rectangular coordinates robot for grinding an outer surface of the spacer grid, a second rectangular coordinates robot for grinding a corner of the spacer grid, and a control unit. The spacer grid holding unit includes a holding jig onto which the spacer grid is seated and held, and a rotary index table which is coupled to the holding jig to rotate the holding jig. The first and second rectangular coordinates robots are provided at predetermined positions adjacent to the spacer grid holding unit. The control unit controls the spacer grid holding unit, the first and second rectangular coordinates robots and all programs required to conduct the operation for grinding the spacer grid.