"The ultra precision machine tool R & D and manufacturing technology is an advanced technology, the machining accuracy of machine tool will lead to the technology field of human never involves in-depth forward. Application of the field of ultra precision machine tool technology has been extended to many aspects of our daily lives, and are enriched and changed our life." BeijingMachine Tool Research Institute Liu Bingye Development held in June 19, 2014 2014 China machine tool tool College BBS points out, "when we were in manufacturing processing equipment of the complex, we should know thatthere is a kind of machine tool rarely appear in the industry exhibition, but it is the developed countries attach great importance to and take measures formachine tool control, this is the ultra precision machine tool, the ultra precisionmachine tool reflects one country's precision technology competitiveness."Precision is the mainstream trend of NC machine tool.

"In the past 30 years, the world machine tool technology has made great development, the development trend of machine tool technology also presents a wide range of features, such as high precision, high speed movement trendtrend, the trend of multi - axis motion, high reliability of the trend,multifunctional complex he trend, can reconstruction of the trend, trend of lowenergy consumption and environmental protection as well as the trend of intelligent, but in all trends, most can reflect the mainstream development trend should be of high accuracy and intelligent trend." Liu Bingye emphasizes,precision is the mainstream trend of the development of NC machine tool, and ultra precision machining accuracy than the precision machining accuracy but also higher by an order of magnitude.

In fact, technology in the field of ultra precision machining technology involvedis very rich. In Beijing machine tool research history of more than 30 years,according to the related technology of ultra precision machining technologyinvolved, Liu Bingye systematically summarized the research of key frontier in 36 aspects and 11 leading core technology. Among them, the key researchincluding design, moving parts, measurement and analysis, process technology, main manufacturing technology and machine tool applicationstechnology six aspects. "In the machine tool accuracy from micron to nanometer level in the course of development, there are unavoidable three key technologies, research on threshold of the three technology and nanoprecision machine tool."

Liu Bingye analysis, one is the bearing no hysteresis, hysteresis phenomenonin mechanical system, motion positioning accuracy and repeatability of positioning the hysteresis phenomenon not only affects the precision of themachine tool slide, also affect the high resolution motion realization, but alsoaffect the precision parts machining shape precision and surface roughnessdegree. And the technology of hydrostatic bearing can well solve themechanical hysteresis phenomenon, and can mean geometric error, widely used in ultra precision machine tool. The static pressure technology has made significant progress in the past ten years, self feedback compensation is moremature. In order to throttle flow control technology of the hydrostatic bearingstiffness greatly enhance, the ultra precision machine tool processing materialhardness increase. In order to throttle flow control technology of the hydrostatic bearing stiffness greatly enhance, the ultra precision machine toolprocessing material hardness increase.

While the other two key technologies are driving in high resolution processingtechnology and micro vibration in mechanical systems. Nanometer resolution is characteristic of nearly 10 years of ultra precision machine tool performance to reflect, many factors influence. At the same time, a large number of experimental studies found, 10 nanometer vibration signals exist in many mechanical actuator, the mechanical sensitivity of execution and thedetermination of cause interference, this motion is called the micro vibration."Research the mechanisms of the micro vibration, and seek the way is the only way which must be passed of ultra precision machine tool to nanometer precision." Liu Bingye said.

To meet the application requirements of ultra precision technology

"China's aerospace remote sensing, laser fusion, defense weapon system,astronomical exploration areas such as advanced technology for large diameter, non ball surface optical element increasing demand, but some foreign high tip designed optical processing equipment and technology for the embargo on china. At present, has been carried out of the surface machiningprocess of the related research work of large diameter than China, butmaturity is low. At the same time, in comparison with the lower self-developedprecision equipment and foreign level, effective Lian he advantage unit is insufficient, there exists the problem of large aperture optical machining andultra precision machining technology of low degree. He." Jiang ZhuangdeChina Academy of Engineering in the forum also puts forward the urgent demand to the ultra precision machining and measuring technology and equipment.

Jiang Zhuangde suggestions, in the future I ultra precision machiningtechnology to solve the digital processing technology of large diameter nonball face parts, improve the optical processing field of our country's core competitiveness and the overall level of technology, to solve the embargo andimport substitution. For example, the ultra precision milling and grinding machine tool diameter of 900 mm, the project for the "eleven key projects ofthe five" National 863 program areas of advanced manufacturing technology,ultra precision manufacturing mainly solves the aerospace, laser nuclear fusion and other large optical devices.

The key application of the ultra precision machine tool, said Liu Bingye, hard turning, hard milling machining will be a large number of applications, finishhard turning will replace grinding. Ultra precision machine tool technology is suitable for the processing of auto parts, bearing ring, injection using,hydraulic valve, ball screw, nut, etc., can be high precision turning of stainless steel, cast iron, plastic, ceramic materials such as graphite, green. "Application of ultra precision machine tool technology can greatly increase the productivityand accuracy, some auto parts machining efficiency and surface quality will bebetter than the grinding. Because of dry cutting, will be more beneficial toenvironmental protection. In addition, the application of ultra precision machine tool technology for hard cutting machine tool will greatly improve the machine tool tool life."

Prior to this, Beijing Machine Tool Research Institute and Taylor Hopson Ltd. inBeijing Gongyan Seiki Limited by Share Ltd build Lian he laboratory,establishing win-win mechanism by Lian he laboratory, to promote both thelong-term development research and service measurement field. Not only through the combination of scientific and technical research project he he jointinnovation, and through