Point welding machine

The utility model relates to a point welding machine, which is improved on the basis of the original fixed platform, the top electrode, the bottom electrode and the like, and also comprises a table top and a driving mechanism, wherein the workpiece to be welded is placed on the table top, and the driving mechanism is used for driving the table top to lift up and down. The table top is positioned between the fixed platform and the top electrode, and a through hole opposite with the bottom electrode is arranged on the table top. When the point welding machine is adopted for point welding, the top electrode can apply force to the workpiece to be welded to control the table top to lift down. When the workpiece to be welded touches the bottom electrode to start point welding, the table top stops lifting down following the top electrode stopping lifting down. Thus, after the point welding machine is adopted, no matter how large the abrasion loss of the bottom electrode is, the bottom electrode can be automatically compensated through the lifting-down of the table top. Thus, the mode that the height of the bottom electrode is not artificially adjusted greatly increases the production efficiency, ensures the quality of point welding, and avoids the quality accident caused by personal factors. The point welding machine has simple structure, good generality and low reformation cost.