US Patent Issued to Zhejiang University on June 30 for "Evolutionary compensation method for spindle rotation error of computer numerical control grinding machine based on timing in-situ measurement" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,933, issued on June 30, was assigned to Zhejiang University (Hangzhou, China).

"Evolutionary compensation method for spindle rotation error of computer numerical control grinding machine based on timing in-situ measurement" was invented by Zhenyu Liu (Hangzhou, China), Guodong Sa (Hangzhou, China), Jiacheng Sun (Hangzhou, China), Chan Qiu (Hangzhou, China), Zhengyang Jiang (Hangzhou, China) and Jianrong Tan (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An evolutionary compensation method for a spindle rotation error of a CNC grinding machine is provided. Feature points are determined at an edge of a central hole of a spindle of a C...