The development of testing instrument bearing predictionAs the world precision manufacturing technology rapid development and products,The increasing accuracy and products inspection and test technology also obtained the development of large, and presents the characteristics of polymorphism and precision.According to the nanometer measurement,from manufacturing to intelligent instrument and virtual instrument,network instrument, domestic bearing industry test and experiment technology in languages With the world market, and face gradually issued a series of suitable not disconnected.National standard and test equipment and testing equipment.On the other hand, China is becoming the world's products manufacturing center and the overseas advanced manufacturing technology and testing technology is impacting domestic bearing industry. Due to the application technology and abroad, and within the industry for many enterprises,Quality inspection and knowledge, and domestic bearing Testing instrument and test equipment from abroad advanced ,There are bigger gaps.In order to make up for product testing and testing technology and advanced foreign technology deficiency and also to meet bearing industry control testing and technical cost, high precision testing instrument or change the past of preparing only imported from abroad.So it need us to change in various aspects.It carrys out special breakthrough from the overall consideration.On the other hand, to improve existing products of reliability and stability.Two aspects, complementary strand, such ability in catch the world trend, can better satisfy domestic enterprise's actual need.1 In advanced technology1.1 Nano measurement techniqueThe rapid development of economy of mechanical manufacturing technology, particularly the rapid development of computer technology and effectively promote the mechanical technology progress. Currently mechanical processing industry has been 0.01μm In technology, the 0.01μm roundness of the processing technologies and the roughness of nano machining technology. Nano machining technology for product testing have put forward higher requirement for the instrument necessarily.Measuring precision of products can't meet the demand manufacturing testing.The longitudinal extension and product precision instruments will give domestic manufacturing with a bigger impact,even there was even squeeze from the market.So Forcing bearing instrument production enterprise, and increasing the world advanced technology, will measuring technique to nano to adapt to the nano machining. Nanoscale measuring technology of the most striking is to shape the roundness measuring such tiny.Roundness apparatus is indispensable mechanical processing detection equipment.The precision machining restricts the roundness of this,So it has a attentiong at home and abroad.Britain, the United States, Japan and Germany from 20Century 40, 50 times in succession is developed, and the various roundness Unceasing renewal. China has since the 1960s hundreds of roundness, and developed since the 1970s the roundness,So this has filled the country white in a certain extent But the early development of roundness instrument is limited by manufacturing technology,So its precision is relatively backward and already cannot satisfy the requirement.we must take higher technology developed high starting point to develop multifunctional roundness to adopt to machining needs.Developed countries are producing a variety of roundness, such as Britain, the United States,Germany and Japan in the 1970s production accuracy ± 0.025μm spindle speeds high precision instrument, especially in Britain R.H.T roundness.The roundness instrument performance is stable and has the company's market share high in the world.In the early 1980s, the measurement uncertainty of new Britain R.H.T roundness is in 0.025μm and Big rate has reached 100 million times and resolution has reached to the nanometer level.It represented the level of contemporary roundness. Computer technology in the 1990s applied widely at the roundness on the function and realizesed the measuring of the roundness, cylindrical and vertical degree, slope, surface degrees parameters , and increased the slope analysis, harmonic analysis etc. Foreign roundness meter generally divided into two kinds: one kind is low sliding spindle drive sensor was turning around the workpiece Sensor, such as Britain's transition to TALYROND73 type, etc.Another is a floating (or oil) rotary worktable no turn of the sensor table.The transformation of the roundness apparatus back in 0.05μm gyration accuracy ,sush as TALYROND300 type, etc. Foreign high precision roundness separate generally the spindle's gyration error to improve measuring accuracy, So measurement values can be the uncertainty of 0.005μm. Domestic development of roundness had many species, such as Shanghai machine tool plant and the central plains instrument factory one of the spindle's gyration accuracy measuring 0.1μm , Production of desktop roundness of Blade factory Shanghai turning precision 0.1μm,Bed factory desktop roundness of Beijing machine turning precision 0.05μm1.2 Network technologyBearing is precision products and processing process has strict process,detection methods and quality inspection records. Currently china in bearing processing businesses generally carried ISO9000 quality management system.Quality management, inspection method, especially strict inspection records request. That the testing results will all time record purpose is the base requirement. But most of the domestic enterprises in this respect by check member will test results, and records of artificial records is easy generation wrong, Records and archives is big. So inspector general is only to storage the sampling data file and to do some analysis and statistics,the quality analysis is very difficult.In the process, between bearings domestic check adopts the traditional mechanical instrument still, the torsional spring measurement data table shows the workpiece, artificial judgement or qualified. The measurement precision, lower the subjective factors influence, but this kind of instrument used simple, low malfunction rate, so in the instrument bearing industry on a wide range of applications, and become the indispensable bearing production equipment. How to effectively utilize existing mechanical equipment, and on this basis to improve human factors for product testing, realize the impact of centralized monitoring and analysis system is realized, and the advanced quality management measurement technique must insurmountable stage.Along with the science and technology progress, bearing industry machine and bearing of automatic production assembly line and the widespread use of the cycle, bearing processing quality and efficiency, so as to greatly increase the detection technology, quality management and statistical work, put forward higher request. Need to change the present backward, and do the inspection record paperless, the realization enterprise quality process automation and computer network management, the quality manager at bearings can get enterprise product testing results and statistical analysis. Network test technology application will make domestic bearing enterprises in terms of quality management to a new step.Network instrument appearance is mainly aimed at present bearing enterprise detection method and quality management is relatively backward, the bearing can effectively control the quality of the present situation, development, the development of intelligent detection instruments and enterprise bearing network management system of quality inspection. The use of advanced detection means and modern network technology for product quality management, can enhance the grade of the product, enhance the competitiveness of enterprises, product testing technology and quality management system or close to reach the international advanced level.Using the latest digital network instrument at present in China, by my first fill the domestic blank, close to the international advanced level. Instrument has many advanced technologies, and compared with foreign price advantage. The network equipment widely used in China and will significantly improve the quality of the bearing, bearing the enterprise the competitive ability.1.3 Virtual instrument and intelligent instrument Modern technology progress in computer technology progress and innovation for the computer technology from all levels influence, guides and professions technical innovations. Based on computer technology of virtual instrument system technology is irreversible power test technology revolution. The concept of virtual instrument system not only promote the instrument based on test system reform, but also influenced by the test data acquisition system of traditional way of tectonic evolution. The concept of virtual instrument system of testing pooled all sorts of scattered field, and is gradually replacing the traditional test methods, become a standard specification.Virtual instrument is the result of the development of computer technology, also users to function, precision instrument varieties, and test speed, real-time, friendly, complicated computation, storage, test results, the technology is a breakthrough.Virtual instrument of the advantages rapid occupys market, test function design aspects of free expansion, compatibility and low cost greatly shorten the development cycle. From the concept of virtual instrument to large and rapid popularization of the product is only ten years, and tests the diversity of the function, but accuracy reached unprecedented degree, which can save a lot of manpower and material resources to deeper researchVirtual instrument is in general computer with a group of special function of software and hardware, so as to achieve even more than a few sets of traditional instruments and function, and change the traditional instruments can very well be compatible faults. Intelligent instrument belongs to the category of virtual instrument, is using the traditional computer hardware inherent high speed and storage capacity, and can carry out complex operation characteristics and using existing efficient program design, combining the need of developing platform specific areas, developed a series of software and hardware and the specific functions of the interface. The specific software and hardware system of traditional computer software and hardware connect platform, is a set of perfect intelligent test instrument. The application of technology is rapidly in popularity to industry detection fields.Domestic bearing industry in intelligent test fields also relatively early. In the 1990s, when the popularization of computer just domestic bearing industry started in virtual and intelligence tests. I have since the mid 1990s develop intelligent roundness measuring instrument, has developed a series of intelligent measuring instrument, product testing goal of covers bearing test parameters. If furrowed measuring instrument, rotation precision measuring instrument, parameter measuring instrument, friction torque meter, vibration measurement instruments (including product obtains the national invention), and all the products have to be intelligent transformation function or expansion, such as clearance measuring instrument, stiffness measurement instrument, contact Angle measuring instrument, dynamic and static friction torque meter military use; etc. Hangzhou experiment research center of existing products such as speed vibration measurement instrument, the life of the intelligent machine etc.2 The reliability of the product, the stability To realize the function of specific test instrument, the famous enterprises with foreign inside in the reliability of the product, and long-term stability, even the machining quality, parts can be interchangeable and modelling . How quickly and effectively change good relationship with these disadvantages, the product quality and comprehensive practical use Life, even relates directly to enterprise's image. Want to similar foreign enterprises in domestic market under the impact of good living, Must unprepared make oneself of the products in manufacturing .In this respect, or test reliability and stability can be achieved standard or close to regulate.The reliability of the product quality is an important part.The product's reliability must be given product function and function parameters, such as the working accuracy, working life, machinery and movement characteristics, dynamic characteristics, etc. If you can guarantee the function parameters, also cannot effectively maintain comprehensive quality assurance products accordingly. Research and testing instrument must be listed in the category of reliability design is important, including product intrinsic reliability (such as material, structure, etc.) and use reliability (such as human error and adaptability to environment, etc.) are overall consideration. The product's reliability, low breakdown maintenance cost, not only can affect muitiply, and production and economic benefits.The reliability of the Bearing testing instrument for traditional instruments of intelligent instruments, or are there, especially for intelligent instruments, appear more problems. On one hand, the traditional instrument belongs to the early development of products, product reliability design for decades later, maturing and only minor changes, and after many experiments and calibration, and intelligent instruments in China to develop from only a very short time, update and rapidly, so more prone to reliability design flaws, On the other hand, intelligent instruments are involved in the field of various aspects (such as mechanical, electrical, sensors, etc) separately, and the reliability design of exist compatible and wildcard including the reliability design of aspects.In domestic bearing industry detection technology field reliability design, design and manufacture of widespread phenomenon, problems arise out of the reason and process, technology, management and inspection personnel concerned, on the other hand and precise processing equipment. Only the comprehensive improvement and standardized management of the phenomena， we can gradually eliminate the defects.If an enterprise's products do not very good reliability in design and strict manufacture and at the same time, the appearance is interchangeable to cater to the user needs, it is difficult to maintain and develop. For precision testing instruments field, it is especially so. These are our wanting considering the development.