Electron beam welding equipment with extensible vacuum chamber

The invention provides electron beam welding equipment with an extensible vacuum chamber, and relates to the technical field of welding, the electron beam welding equipment comprises a first rail, a head cavity and a tail cavity are mounted on the first rail, one of the head cavity and the tail cavity is fixed on the first rail, the other one is slidably connected with the first rail, the first rail is further connected with a second rail, and the second rail is perpendicular to the first rail; at least one auxiliary cavity is connected to the second rail in a sliding mode. The electron beam welding equipment with the extensible vacuum chamber has the beneficial effects that the electron beam welding equipment with the extensible vacuum chamber is simple in overall structure and convenient to use, the volume of the cavity can be adjusted according to the size of a part so that the volume of the cavity can be in a reasonable state, the vacuumizing time can be effectively shortened, the machining efficiency can