Combined machine tools and combined machine tool automatic lines are a special high-efficiency automation technology equipment. Currently, it is widely used in automobiles, tractors, internal combustion engines and compression because it is still the key equipment for high-volume mechanical products for efficient, high-quality and economical production. Machines and many other industrial production areas. Among them, especially the automotive industry, is the largest user of combined machine tools and automatic lines. For example, the German Volkswagen plant at the Salzgitter engine plant, the metal cutting machine used in the early 1990s is mainly automatic line (60%), combined machine tools (20%) and machining centers (20%). Obviously, in the mass industrial machinery industry, the equipment used in large quantities is a combination machine tool and automatic line. Therefore, the technical performance and comprehensive automation level of the combined machine tool and its automatic line largely determine the production efficiency, product quality and structure of the production organization of these industrial sectors, and also largely determine the product of the enterprise. Competitiveness.
Modern combination machine tools and automatic lines are mechatronic products, which are a comprehensive reflection of technologies such as control, drive, measurement, monitoring, tooling and mechanical components. In the past 20 years, these technologies have made great progress. At the same time, the industries such as automobiles and internal combustion engines, which are the main users of combined machine tools, have also undergone great changes. The market life of their products has been shortened, the variety has been increasing and the quality has been continuously improved. These factors strongly promote and motivate the continuous development of combined machine tools and automatic line technology.
1 Development focus of combination machine tools
In special machines such as the combination machine (Fig. 1), the rotary multi-station combined machine (Fig. 2) and the automatic line (Fig. 3) play an important role. Because these two types of machine tools can distribute many machining operations of the workpiece to multiple processing stations, and at the same time can process several faces of the workpiece from multiple directions, in addition, through the indexing fixture (on the rotary table) On the machine tool, or through the indexing and turning device (on the automatic line), the five-sided machining or the whole machining of the workpiece is realized, so that it has high automation degree and production efficiency, and is adopted by industrial departments such as automobiles, motorcycles and compressors.
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