Internal self-cleaning device of vacuum welding furnace

The utility model discloses an interior self-cleaning device of a vacuum welding furnace, which comprises a base and supporting rods, a left supporting rod and a right supporting rod are arranged at the top end of the base, a screw rod is arranged in each supporting rod, the top end of each screw rod is connected with a servo motor a, and each screw rod is connected with two ends of a sliding block. A sliding block is arranged on the base, a servo motor b is arranged at the top end of the sliding block, the bottom end of the servo motor b is connected with a rotating rod, an adjusting block is arranged on the rotating rod, the adjusting block is connected with an adjusting rod, the adjusting rod is connected with a connecting rod, and a water tank is arranged on one side of the base. According to the internal self-cleaning device of the vacuum welding furnace, when the vacuum furnace is cleaned, the expansion amplitude of the cleaning module can be controlled by sliding the displacement adjusting block up and