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[China Instrument Network Instrument R&D] On May 17th, Dalian University of Technology disclosed that the academic team of Wang Liding of the school has successfully developed a grade 1 reference standard gear. This technology has all independent intellectual property rights and fills the domestic and international level 1 precision gears. Blanks for manufacturing processes and measurement methods.
Precision gear processing technology plays an important role in many important fields such as industrial production, aerospace and military equipment. The accuracy of the gears is divided into 12 levels, of which the second-level accuracy is the reference standard gear, which is mainly used as a benchmark for the national or international gear measuring instrument calibration and precision transmission. At present, the precision of gears in the world's most advanced countries has reached Level 2, and the development and testing of Level 1 precision reference gears have not yet been achieved.
According to Dalian University of Technology, the Chinese Association of Metrology and Testing, the Federation of Machinery Industry and the China Mechanical Engineering Society respectively organized domestic authoritative experts to study the "Grade 1 Precision Reference Standard Gear Measurement Technology and Instruments" and "Grade 1 Accuracy Benchmark" of the team of academician Wang Liding. "Classification of standard gear processing equipment refinement and process technology," the project conducted results appraisal. According to the results of the appraisal, Wang Liding's academic team studied the first-class accuracy reference gear profile deviation measurement technology at the international leading level, the pitch deviation measurement technology reached the international advanced level, and the refined grinding tooth gear machine and ultra-precision grinding process were developed. The first-class precision reference standard gear developed has an international advanced technology and an internationally leading precision index.
According to reports, Wang Liding is a well-known precision gear expert in China. He has long been engaged in the research of precision machinery and micro-nanotechnology, and is responsible for the development of high-precision standard gears with advanced international standards. Under the leadership of Wang Liding, the team captured the key design of ultra-precision standard gear grinding machines, super-precision gear machining processes, solved key technologies such as gear measuring instruments and gear testing, and completed the refinement of standard gear grinding machines. , To achieve the ultra-precision standard gear machining precision and precision measurement technology to enhance the overall development of a series of standard precision gear.
At present, the Grade 1 precision reference standard gear has been used as a physical standard, and is used by the Chinese Institute of Metrology, provincial-level measurement departments and companies for proofreading and quantitative transmission of high-precision gear-measuring devices.
(Original title: Dalian University of Technology develops precision precision gears to fill gaps at home and abroad)