COB light bar assembling jig

The utility model relates to the technical field of lamp bar assembly, in particular to a COB lamp bar assembly jig which comprises a base and a supporting top plate, a connecting plate is fixedly connected between the base and the supporting top plate, a supporting block is fixedly connected to the bottom of the base, a plurality of placing plates used for placing lamp holders are fixedly connected to the base, and the supporting block is fixedly connected to the bottom of the base. Guide plates used for guiding the lamp holder are arranged at the four corners of the containing plate correspondingly, an air cylinder is fixedly connected to the supporting top plate, a movable plate is fixedly connected to the bottom end of the air cylinder, a plurality of pressing plates aligned to the containing plate are fixedly connected to the movable plate, and vacuum adsorption parts are arranged on the containing plate and the pressing plates correspondingly; and the pressing plate can adsorb and fix the light bar unde