Welding equipment, welding method and device

The invention discloses welding equipment and a welding method and device. The welding equipment comprises a mechanical arm, an intelligent camera, an executing mechanism and a lower computer. The executing mechanism comprises a bearing part; the lower computer controls the mechanical arm to place the connecting piece to be welded on the bearing part; controlling the intelligent camera to determine whether the material of the to-be-welded connecting sheet is a preset material and whether the direction is a preset direction based on the detection image of the to-be-welded connecting sheet; and under the condition that the material of the to-be-welded connecting piece is the preset material and the direction is the preset direction, the mechanical arm is controlled to place the to-be-welded connecting piece to the corresponding welding station. According to the embodiment of the invention, the material and the direction of the to-be-welded connecting piece are detected through the intelligent camera, when the variety of the battery is replaced, only additional learning needs to be performed through the intelligent camera, the intelligent camera does not need to be replaced, the operation is simple, debugging is convenient, rapid remodeling can be achieved, and the intelligent camera adopts a subminiature design, so that the cost is reduced. And the installation space can be effectively reduced.