Wire filling machining device for rapidly forming electron beam

The invention provides a wire filling machining device for rapidly forming an electron beam. The device is characterized in that a multi-shaft worktable (4) is arranged inside a vacuum chamber (3); an electron gun (10) is mounted at the top of the vacuum chamber (3) and is connected with a high-voltage power supply (1) through a high-voltage cable (11); one or two wire feeding system vacuum chambers (8) are arranged at the outer part of the vacuum chamber (3); the wire feeding system vacuum chambers (8) are connected with the vacuum chamber (3) through a valve (12); each wire feeding system vacuum chamber (8) is internally provided with a wire feeding system (7) and a three-dimensional alignment mechanism (9); each three-dimensional alignment mechanism (9) is provided with two stations including a wire feeding station and a wire changing station; each three-dimensional alignment mechanism (9) can move between the two stations and is driven by a motor; when each three-dimensional alignment mechanism (9) is at the wire changing station, each three-dimensional alignment mechanism (9) is located in each wire feeding system vacuum chamber (8); and the valve (12) can be closed to separate the wire feeding system vacuum chambers (8) with the vacuum chamber (3). The wire filling machining device for rapidly forming the electron beam, disclosed by the invention, overcomes the defects that a wire feeding mechanism and parts in the conventional device are located in a same vacuum chamber all the time and the wire changing time is too long can be overcome.