Precise variable-position automatic welding machine

The utility model discloses a precise variable position automatic welding machine which comprises a bottom plate, two vertical plates, a transverse plate and a connecting and clamping mechanism, the two vertical plates are respectively installed at the top of the bottom plate, the transverse plate is installed at the tops of the two vertical plates, the connecting and clamping mechanism is arranged at the top of the bottom plate, and the connecting and clamping mechanism comprises a fixing plate. And the fixed plate is arranged at the top of the bottom plate. Through mutual cooperation of the fixing plate, the connecting block, the first electric push rod, the servo motor, a fixing block, a fixing shaft, a stabilizing block, a supporting block, a second electric push rod, a clamping block, a placing block, an inserting block, a mounting block, an inserting groove, a pulling block, an iron block, a positioning groove and a magnet, the position of a clamped workpiece can be conveniently and automatically adjust