Positioning and clamping device used for assembling front flap in airplane

The invention discloses a positioning and clamping device for assembling a front flap in an airplane. The positioning and clamping device is welded by a support sleeve and a sleeve connecting flange, a positioning plate connecting flange is welded with a connecting sleeve, the sleeve connecting flange and the positioning plate connecting flange are fixed by two positioning pins and are connected by four bolts, the connecting sleeve is welded between a lightening hole at the upper part of a rib positioning plate and a rib positioning hole, and the support sleeve is fixedly arranged on an installation support. The positioning and clamping device simplifies the structure of an assembly tool, realizes the positioning and clamping of the parts of the front flap in the airplane, realizes high integration of the assembly positioning function, has compact structure, realizes positioning, clamping and measuring on low-rigidity parts such as ribs, skin, long purlins, trailing edge and the like and provides an important technical guarantee for quick and accurate positioning for assembling parts of the front flap in the airplane.