Development of the CNC Device of Ultrasonic Grinding the Surface of Ceramic Blade

In order to machine the surface of ceramic blade ,the CNC ultrasonic grinding device is designed and manufactured .The structure of the device is introduced,the design of spindle's variable frequency and variable speed systemis introduced. The cutter location in the process of CNC ultrasonic grinding parallel ruled surface with cylindrical grinding wheel is analyzed.Principle error in the process is brought for ward,the principle error decrease much when the cutter is deflected twice . The path of grinding wheel is calculated,and experiment of ultrasonic grinding of ceramic blade surfaceis carried out .The result of experi ment shows that the device runs stably with good performance ,the calculation method of the cutter location is reasonable ,ceramic blade surface can be machined by the means of ultrasonic grinding,the research result can be applied into maching the blade surface of the ceramic integrated impeller .