"Two key technology projects have successfully passed the acceptance review. The first one, titled 'Research and Application of Key Technologies for High-Speed Precision CNC Lathes,' was conducted by Nanjing CNC Machine Tool Co., Ltd. The second project, 'Key Technology Research for Improving Positioning Accuracy of Mid-Range CNC Machine Tools,' was accepted by Jinan I Machine Tool Group Co., Ltd."
"The development and application of key technologies for high-speed precision CNC lathes focus on several critical areas, including C-axis precision, tool holder balancing systems, turning-grinding composite machining techniques, machine tool dynamic performance analysis, and structural optimization of high-speed spindle rotary systems as well as turning-milling combined machine tools. Through this research, the core technologies that influence the performance, accuracy, and reliability of high-speed precision CNC lathes have been largely mastered. An optimized high-speed precision CNC lathe spindle has achieved a maximum speed of 8,000 revolutions per minute, demonstrating significant progress in this field."
"The project aimed at improving the positioning accuracy of mid-range CNC machine tools has conducted extensive experiments and research on enhancing the rigidity of the feed system, improving the sliding performance of the guide rails, and reducing systematic errors in the feed system. As a result, the main factors affecting the positioning accuracy of mid-range CNC machines have been identified, and corresponding measures have been implemented to improve overall performance and stability."
"This work represents a major step forward in the advancement of CNC technology, particularly in terms of speed, precision, and reliability. The results from these two projects will play a vital role in the development of more efficient and accurate machine tools, supporting the growth of the manufacturing industry."
MITSUBISHI VVT SOLENOID
Variable valve timing (VVT) solenoid or oil control valve controls the oil flow according to the engine speed and load. VVT solenoid is a vital part of the variable valve timing system.
The Oil Control Valve (OCV) is a a critical part used in every engine that is fitted with variable valve technology (VVT). A single control valve will regulate the supply of oil to a designated VVT hub, to advance or retard the timing by altering the camshaft angle position. Controlled by the ECU, the OCV receives electrical signals, instructing it to adjust the oil flow as required, in accordance to current driving conditions.
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