Fixing clamp for drilling plate surfaces of thin plate flange parts

According to the fixing clamp for drilling the plate surfaces of the thin-plate flange parts, positioning grooves matched with the outer contours of the thin-plate flange parts are formed in the upper plate surface of a positioning plate, and the thin-plate flange parts which are distributed up and down are sequentially arranged in the positioning grooves; a fixing plate used for positioning and fixing the thin-plate flange parts is detachably fixed to the positioning plate, and a part taking groove used for taking the thin-plate flange parts out of the positioning groove after drilling is completed is formed in the positioning plate. According to the utility model, the positioning grooves matched with the external contours of the thin-plate flange parts are processed on the upper plate surface of the positioning plate, and the thin-plate flange parts are fixed by the fixing pieces detachably fixed on the positioning plate, so that the numerical control drilling machine can drill a plurality of thin-plate fla