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Due to the requirements of micro-hole processing of ceramic ferrules, the precision spindle of the micro-hole grinder was designed. In order to verify the rationality of the design, the finite element analysis software ANSYS Workbench was used to conduct finite element modeling of the spindle, and modal analysis was performed on the spindle. The first six orders of natural frequency, vibration shape, critical speed and other dynamic characteristics of the spindle were analyzed. According to the analysis results, the maximum working speed of the spindle is far lower than 75% of its first-order critical speed, effectively avoiding the resonance zone and verifying the rationality of the spindle design. At the same time, this research provides a reference for the design and simulation of similar products.
Liu et al. (Wed,) studied this question.