A Brief Talk on Automated Mechanical Manufacturing \x0d\ Abstract: Automated Manufacturing System (FMS) refers to a highly automated manufacturing system. At present, FMS usually refers to a manufacturing system that aims at advanced automation and high-level automation in batch cutting. \x0d\ Keywords: manufacturing scale; Key technologies; Development trend \ x0d \ x0d \ With the increasingly urgent demand of society for product diversification, low manufacturing cost and short manufacturing cycle, FMS has developed rapidly, and due to the development of microelectronics, computer technology, communication technology, machinery and control equipment, \x0d\ 1. The manufacturing scale of automated machinery \x0d\ FMS can be divided into the following four categories \x0d\ (1) Automated manufacturing unit \x0d\ FMC: it came out about 6-8 years later than FMS and was used in production. It consists of 1-2 machining center, industrial robots, CNC machine tools and material transportation and storage equipment. FMC can be regarded as the smallest FMS, which is the product of the development of FMS in the direction of cheapness and miniaturization. Its characteristics are automation and real-purpose single-machine automation, and it has entered the stage of popularization and application so far. \x0d\ (2) Automated manufacturing system \x0d\ usually includes four or more fully automatic CNC machine tools, manual centers and turning centers. ), connected by centralized control system and material handling system, can realize multi-variety, small and medium-sized batch processing and management without stopping. \x0d\ (3) Automatic manufacturing line \x0d\ It is a production line between a single or a few large-scale non-automatic automatic lines and a small and medium-sized multi-variety F: MS, and its processing equipment can be a general machining center, a CNC machine tool, a special machine tool or a CNC machine tool. The automation requirement of material handling system is lower than that of FMS, but the productivity is higher. \x0d\ (4) Automated Manufacturing Factory \x0d\ FMt is a complete set of FMS from ordering, design, processing, assembly, inspection, transportation to delivery, which is connected with multiple FMS and equipped with automated three-dimensional warehouse. It includes CAD/CAM, and puts computer integrated manufacturing system (C 1MS) into practice, realizing the automation of production system, and then realizing the whole production management, product processing and material storage and transportation process of the whole plant. FMF has the highest level of automation production, which embodies the most advanced automation application technology in the world. It integrates manufacturing automation, product development and management, represented by intelligent manufacturing system IMS, and controls logistics with information flow. Its characteristic is to realize the automation of the factory. \x0d\ II。 The key technology of automation \x0d\ (1) Computer aided design \x0d\ Expert system will be introduced into the development of CAD technology in the future, making it intelligent and able to deal with all kinds of complex problems. The latest breakthrough in current design technology is photosensitive stereo molding technology. This new technology is to directly use CAD data, and divide the three-dimensional digital model into several layers of two-dimensional sheet graphics through a computer-controlled laser scanning system. According to the two-dimensional sheet graphics, the liquid level of photosensitive resin in the pool is optically scanned, so that the scanned liquid level becomes cured plastic. In this way, the layered solidified plastics are automatically bonded together by cyclic operation and layer-by-layer scanning molding. You only need to confirm the data, and you can make an accurate prototype within a few hours. It helps to accelerate the development of new products and new structures. \x0d\ (II) Fuzzy control technology \x0d\ The practical application of fuzzy mathematics is fuzzy controller. Recently developed high-performance fuzzy controller has self-learning function, which can continuously acquire new information in the control process and automatically adjust the control quantity, thus greatly improving the system performance, especially the self-learning method based on artificial neural network has attracted great attention. \x0d\ (3) Industrial intelligence, expert system and intelligent sensor technology \x0d\ Up to now, artificial intelligence used in FMS mostly refers to rule-based expert system. Expert system uses expert knowledge and reasoning rules to reason and solve various problems (such as explanation, prediction, diagnosis, fault finding, design, planning, monitoring, repair, command and control, etc.). ). Because the expert system can simply combine all kinds of facts and proven theories with the knowledge gained through experience, the expert system enhances the automation of all aspects of FMS. Looking forward to the future, artificial intelligence (including expert system) technology characterized by knowledge-intensive and knowledge processing means will certainly play a key role in FMS (especially intelligence). Artificial intelligence will play an increasingly important role in the future FMS. At present, artificial intelligence is still the most promising technology in FMS. It is predicted that the application scale of artificial intelligence in FMS will be four times that of the current one by the beginning of 2 1 century. FIMT is an intelligent manufacturing technology, which aims to integrate artificial intelligence into all aspects of the manufacturing process, and replace or extend part of human mental work in the manufacturing environment with the help of the intelligent activities of simulation experts. In the manufacturing process, the system can automatically monitor its running state, and automatically adjust its parameters when it is stimulated by external or internal, so as to achieve the best working state, with self-organization ability. \x0d\ (4) artificial neural network technology \x0d\ artificial neural network fANN) is a method that simulates the neural network of intelligent creatures to process information in parallel. Therefore, artificial neural network is also an artificial intelligence tool. In the field of automatic control, neural network will soon be juxtaposed with expert system and fuzzy control system and become an integral part of modern self-sustaining system. Third, the development trend of start-up control technology \x0d\ (1) FMC will become a hot technology for development and application \x0d\ This is because the investment of FMC is much less than that of FMS, and the economic benefits are similar, which is more suitable for small and medium-sized enterprises with limited financial resources. At present, many foreign manufacturers have listed FMC as the development focus. \x0d\ (II) Developing in the direction of multi-function \x0d\ has further developed from a simple processing FMS to a multi-function FMS with welding, assembly, inspection, sheet metal processing and even casting and forging. FMS is a novel conceptual model and a new development trend to realize the future factory, and it is also a strategic measure to determine the future development of manufacturing enterprises. The international development project of "Intelligent Manufacturing System" (frms) implemented in Japan from 199 1 belongs to the second-generation FMS: the second-generation FMS is constantly being perfected. Intelligent machinery is integrated with human beings, which automatically coordinates all production and business activities of enterprises from receiving orders to production and sales. \x0d\ In the new century, FMS has developed rapidly and has almost become the focus of production automation. On the one hand, the development of single technology, such as CNC machining center, industrial robot, CAD/CAM, resource management and high technology, provides a technical basis for the integration of a whole system; On the other hand, great changes have taken place in the world market, from the traditional and relatively stable market in the past to a dynamic and changeable market. In order to survive and develop from the market and improve the adaptability of enterprises to market demand, people began to explore new production methods and business models.