Recent Patent on the Spindle Rotation Accuracy Detection Device

Background: Based on the high-speed operation of the spindle, the influence of the rotation accuracy of the spindle on the system will increase with the increase of the rotation speed. Therefore, how to predict rotation accuracy becomes very important for mechanical equipment based on the spindle. Objective: To summarize the classification and characteristics of the spindle rotation accuracy detection device to predict future development. Methods: The current status of various representative patents related to spindle rotation accuracy testing equipment is analyzed. According to the characteristics of testing equipment, the development level of existing testing equipment in error separation and high-speed detection of the spindle is analyzed, and the latest patented technology is expounded and compared. Results: The structure of the spindle rotation accuracy detection device is analyzed and compared, and the typical characteristics are summarized. The problems existing in the detection of spindle rotation accuracy are analyzed, and their development trend is prospected. Conclusion: It is obtained that the contact-type rotary accuracy testing equipment is generally suitable for static measurement, the single-probe and multi-probe testing equipment can be basically satisfied with the measurement, and the optical testing equipment can be widely used in the measurement under the high-speed rotation of the spindle. There is room for further development in the dynamic load detection of the spindle.