Inner Mongolia Northern Heavy Industry Group Co., Ltd., the original Baotou No. 2 Machinery Factory, was founded in 1954. It is a national special large-scale enterprise and a national enterprise technology center. It has developed into a special steel smelting company. , casting and forging, heat treatment, surface treatment, mechanical processing, welding assembly, electro-hydraulic, general assembly and commissioning, scientific research and other process categories, a modern enterprise group with strong comprehensive strength. During the internship, we first listened to a series of safety matters and items that need attention during the internship. In the next period of time, we divided into several groups and conducted production internships in the deep hole workshop, hydraulic workshop, and electromechanical workshop. We visited their production and assembly lines and asked the masters for advice on some parts processing techniques and other issues, and we benefited a lot. In the deep hole workshop, I gained a more accurate perceptual understanding of lathes such as gantry planers and bullhead planers. I listened to the master craftsmen explain in detail the five major components of machine tools: bed, column, grinding head, carriage, and workbench. Then, just like sporadide, their processing technology and processing characteristics were embedded in my head unconsciously. Unfortunately, I couldn't do some specific practical operations, but I observed the production, processing and assembly process of each part of a machine tool, which made a lot of the knowledge I learned from books come alive, and I understood some of the important aspects of this major. Specific applications in technology manufacturing. In the hydraulic workshop, I asked the master craftsmen about the processing process of general parts, and learned a lot of things that cannot be learned in books. Part processing requires many processes, such as marking, rough turning, heat treatment, quenching and tempering, finishing, etc. Quenching, etc., the knowledge learned from the internship became vivid immediately when combined with the theoretical knowledge from the modeling materials and crafts book I just finished. During the internship in the mechanical and electrical workshop, I greatly enriched my knowledge about parts processing technology and expanded my knowledge. In this internship, what impressed me the most was understanding the importance of CNC machine tools in the machinery manufacturing industry. It is a product of the combination of electronic information technology and traditional machining technology. It integrates modern precision machinery, computers, communications, hydraulic pneumatics, It integrates multi-disciplinary technologies such as optoelectronics and has the characteristics of high efficiency, high precision, high automation and high flexibility. It is an indispensable production equipment for cutting-edge industries. At present, the vast majority of CNC machine tools in our country are produced by advanced foreign manufacturers. In terms of quantity and accuracy and performance indicators, China's manufacturing industry lags far behind developed countries, and we need to catch up. Finally, we also visited the assembly process of large tunnel boring machines and the exhibition hall of NHI. In the exhibition hall, I learned that the core values ??of "harmony, compliance, truthfulness, trustworthiness, and courage" are the inheritance and development of the group's history. Northern Heavy Industries Group has a strong cultural heritage. It has absorbed the essence of the excellent qualities tempered by five thousand years of Chinese history and integrated them into the entire process of the company's development to form the core values ??of Northern Heavy Industries Group. "Forging a sharp sword to strengthen the country and a strong plow to enrich the people" is the purpose of Beizhong people.