Device for removing an electrode from an electrode holder and/or fitting an electrode into an electrode holder, said electrode holder forming part of a welding device, said device comprising a spent electrode receptacle provided with an orifice and an assembly mounted on said orifice, said assembly comprising a through passage with a longitudinal axis connecting a housing to hold one end of the electrode holder forming a mandrel, and the receptacle, said longitudinal axis being designed to be approximately vertical, means of tightening or loosening an electrode holder mandrel, means of fixing the electrode to said device and means of enabling or disabling dropping of the spent electrode into the receptacle.