ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,521, issued on Sept. 9, was assigned to KEDE NUMERICAL CONTROL Co. LTD. (Dalian, China).
"Double-swing angle spindle head" was invented by Hu Chen (Dalian, China), Yanxing Hou (Dalian, China), Hongtao Tang (Dalian, China), Haibo Zhang (Dalian, China), Tinghui Liu (Dalian, China), Chuansi Zhang (Dalian, China) and Chunhong Fan (Dalian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a double-swing angle spindle head, in which an A-axis swing shaft is connected to the spindle head through the flange on the end face to realize the swing of the A-axis, and a crank connecting rod mechanism composed of a first rotatin...