Electrode mounting fixture

The utility model discloses an electrode mounting fixture which comprises a fixture main body, an electrode positioning hole and a positioning structure, wherein the electrode positioning hole is inwards concavely formed and used for accommodating and fixing an electrode, and the positioning structure is used for enabling the electrode mounting fixture to be fixed relative to the radial direction of an electrode mounting hole of an electrode base and be movable relative to the axial direction of the electrode mounting hole; the positioning structure comprises a first positioning piece positioned above the electrode positioning hole, as well as a second positioning piece and a third positioning piece which are arranged at two sides of the electrode positioning hole. According to the electrode mounting fixture, poor welding brought by poor electrode installation is eliminated, and the welding quality is improved; furthermore, the installed electrode is kept in an original shape without deformation, and the electrode can be repeatedly installed.