Welding positioning device

The utility model discloses a welding positioning device which comprises a positioning seat installed on a base and a positioning frame installed on the base through a lifting mechanism, a welding head is arranged at one end of the positioning frame, and the positioning seat comprises a fixed seat and a sliding seat installed on the fixed seat in a sliding mode. Conveying rollers are rotationally connected to the inner sides of the ends of the fixed base and the sliding base, one end of each conveying roller is connected with a conveying motor, the conveying motors are fixed to the sliding base and the fixed base, the outer sides of the conveying rollers are sleeved with a conveying belt, and a clamping sliding block is arranged on the lower side of one end of the sliding base; through the designed positioning seat, during use, a clamping spring and a clamping sliding block of the positioning seat are matched to enable the fixed seat and the sliding seat to perform sliding clamping, and a conveying motor, a c