针对行星丝杆加工开发的双主轴磨床，一个主轴磨齿，一个主轴磨外螺纹，磨削时自动切换。可实现齿部和外螺纹一次装夹全部磨出。

A double-spindle grinding machine developed for planetary screw machining, with one spindle for gear grinding and theother for external thread grinding, which switches automatically during the grinding process. it enables the complete grinding of both gear parts and external threads in a single clamping.