毕业论文数控系统数控车床的可靠性.doc

INTRODUCTION Enhancing NC lathe reliability has become the key of survival and development for Numerical control lathe manufacture enterprise. Today machine tool market compete drastically, it is higher reliability NC lathe that can get consumer With social production and the rapid scientific and technological development, mechanical properties and product quality improvement. Numerical control technology is one of the key technologies of modern fabrication. In our country, the research level of numerical control technology is very low, which seriously restricts the level of the manufacturing development. So it is a great thing to develop the national numerical control industry. Product upgrading has been accelerated, so the machine not only has higher accuracy and productivity, but should be able to quickly adapt to the change of product components. Production needs of CNC machine tools to promote the emergence of electronic technology, in particular the development of computer technology, CNC machine tools developed rapidly. From the first NC Machine (1952 USA) come out so far, the machine tools rate has been raised. The worlds industrial countries has generally production and application, the Japanese production of the machine tools in 1988, the rate had already reached 70%. From the opening up of China to enliven, the CNC machine tools to speed up the introduction of technology to promote Chinas CNC technology popularization and development. Current universal application of micro-computer numerical control machine tools, integrating electronic technology, computer technology, automation technology, Measurement techniques and machinery manufacturing, and other aspects of the latest result is a flexible and efficient automated machine tools, Mechatronics is a typical one of the products. Major enterprises set up CNC machine tools to expand production and the replacement of obsolete equipment. NC machine continuously improve the penetration rate and under such c