Welding slag collecting assembly for welding machine

The utility model belongs to the technical field of welding, and particularly relates to a welding slag collecting component for a welding machine, which comprises a positioning ring. A sliding groove is formed in the middle of the positioning ring. A sliding block is slidably connected to the middle of the sliding groove. The middle part of the sliding block is rotationally connected with an inner ball body; a supporting rod is fixedly connected to the middle of the inner ball. A hydraulic rod is fixedly connected to the middle of the supporting rod. The end part of the hydraulic rod is in sliding connection with the positioning ring; the end part of the supporting rod is fixedly connected with a collecting cavity; according to the step, when the steel pipe is welded, the collecting cavity is placed below the welding position, then welding slag can be collected when the steel pipe is welded, then the welding slag collected in the middle of the collecting cavity can be directly collected, and therefore the we