Multi-layer and multi-weld-seam welding limiting device

The invention relates to a multi-layer and multi-weld-seam welding limiting device, and belongs to the technical field of aero-engines. The multi-layer and multi-weld-seam welding limiting device comprises a base plate, a support block is arranged on the base plate and is cylindrical, an inner circular rotary disc and an outer circular rotary disc are coaxially arranged inside and outside the support block correspondingly, and the inner circular rotary disc and the outer circular rotary disc can rotate around a central shaft of the support block; and a plurality of inner circle welding seam limiting devices for limiting parts to be welded are evenly distributed in the inner circle rotary disc, and a plurality of outer circle welding seam limiting devices for limiting the parts to be weldedare evenly distributed outside the outer circle rotary disc. According to the multi-layer and multi-weld-seam welding limiting device, laser welding is adopted, multiple layers of welding seams distributed in the circumferen