On September 16, 2019, the German hannover machine tool show (EMO2019) kicked off at the hannover international exhibition center. EMO is a professional exhibition for the machine tool manufacturing industry supported by the European machine tool industry cooperation council. The exhibition is one of the most authoritative and professional events in the world’s machine tool and manufacturing technology industry, which fully demonstrates the scientific research and innovation in the field of manufacturing equipment and technology in the world, and plays an important leading role in the international metal processing field.