Device capable of automatically mounting reinforcing ring

A device capable of automatically mounting a reinforcing ring comprises a mounting platform, a downward pressing device, an upward pushing device, an upper die fixing plate, an upper die, a workpiece die plate, a lower die, a lower die fixing plate, a lower die base, an upper punching head and a lower punching head, wherein a reinforcing ring mounting cavity is formed in the workpiece die plate, the upper end of the lower punching head is arranged in the reinforcing ring mounting cavity, and the lower end of the lower punching head is arranged in the lower die fixing plate. The lower end of the upper stamping head can be inserted into the reinforcing ring mounting cavity, the upper stamping head and the lower stamping head can be pressed and attached, and the upper stamping head and the lower stamping head can press the reinforcing ring into a product. According to the device capable of automatically mounting the reinforcing ring, the reinforcing ring is firstly placed in the inner hook grooves of the multipl