Automobile doorsill boundary beam welding positioning device

The invention relates to the technical field of automobile part welding, and particularly discloses an automobile doorsill edge beam welding positioning device which comprises a base, a clamping mechanism arranged on the base and an abutting mechanism used for abutting against materials. The clamping mechanism comprises a supporting plate sliding on the base, two clamping plates oppositely arranged on the upper side wall and the lower side wall of the supporting plate and a driving assembly used for driving the two clamping plates to move oppositely. The supporting plate is further provided with a detection mechanism used for detecting whether the materials move or not, the detection mechanism comprises an identification assembly and a monitoring assembly, the identification assembly is used for driving whether the materials abut tightly or not, and the monitoring assembly is used for monitoring the position conditions of the materials. The device has the effect of ensuring seamless welding of the doorsill ed