Welding positioning device for capacitor outer shell of electric automobile

The invention discloses a welding positioning device for a capacitor outer shell of an electric automobile. The welding positioning device comprises a mounting plate, the mounting plate is fixedly connected with a first check block used for limiting a welding workpiece bottom plate, the mounting plate is fixedly connected with a limiting column, and the limiting column is used for limiting the rear side of a workpiece; supporting rods are fixedly connected to the two sides of the mounting plate, a supporting plate is fixedly connected to the supporting rods, a first linear driving device is fixedly mounted on the supporting plate, a first linear driving shaft which drives up and down is arranged at the lower end of the first linear driving device, and the first linear driving shaft penetrates through the supporting plate and is connected with a first guide clamping mechanism; and the first guide clamping mechanism is used for clamping a to-be-welded outer shell at a relative position on the bottom plate. According to the welding positioning device, the workpiece can be conveniently guided, positioned and clamped, so that the workpiece can be conveniently welded, and the welding efficiency and the welding precision are improved; and the structure is simple, and welding slag can be prevented from affecting positioning accuracy.