Ultra-precision gear-grinding processing based on class 1 master gear

To establish the scientific principles and technical frameworks of the ultra-precision grinding technology,the research work was performed on the processing principles and methods of the ultra-precision gear-grinding to develop the ultra-precision master gears with class 1(ISO 1328-1:1995).Firstly,according to the optimal forming of an involute and the easy refinement and high structural rigidity of the machine,the gear grinder with flat-faced wheel Y7125 was chosen as the object machine tool.Then the ultra-precision gear-grinding processing was discussed and studied from the aspects of gear blank processing and datum renovation,optimal adjustment of grinder parameters and scientific gear-grinding operation.Finally,the medium module(m2 and m4) ultra-precision master gears with class 1 were developed by a scientific gear-grinding experiment.The research on ultra-precision gear-grinding processing plays a guiding role in the overall improvement of gear manufacturing technology in China.