The invention discloses a tank bottom head automatic
welding device and a control method thereof. The device comprises a main support playing a supporting role, the main support comprises a base, a sliding rod perpendicular to the base is arranged on the base, a control cabinet is arranged at the left side of the sliding rod, a
welding bracket is connected to the sliding rod in a sliding mode, a
welding device is arranged on the welding bracket, a welding
slag cleaner is arranged below the welding bracket, a plastic tank is arranged at the right side of the welding device, an up-down adjustingdriving motor is arranged at the top of the sliding rod, and a control end of the welding device, a control end of the welding
slag cleaner and a control end of the up-down adjusting driving motor are separately and electrically connected with the control cabinet. According to the device and the method, the problems that in the prior art, when the traditional welding device for welding a
barrel and a bottom head is used, the pressure applied by a welding gun is insufficient, the welding speed is not uniform, and the welding
slag treatment process is time-consuming after welding are solved. According to the device and the method, advantages of short
operation time, low operation cost, high operation efficiency, high overall gains for customers and the like are achieved.