High-precision grinding device for aircraft-grade composite material mold

The high-precision grinding device comprises a base plate and a bearing plate, the bearing plate is fixedly installed on the top face of the base plate through supporting legs, a longitudinal rail is fixedly installed at one end of the top face of the bearing plate, and a longitudinal sliding block is connected into the longitudinal rail in a sliding mode. A stand column is fixedly installed on the top face of the longitudinal sliding block, a transverse rail is fixedly installed on the surface of one side of the stand column, and a transverse sliding block is slidably connected into the transverse rail. The polishing device has the beneficial effects that after a polishing head and a polishing motor are in place, a second hydraulic rod and a third hydraulic rod are started to extend, and a gap between a transverse sliding block and a transverse rail is prevented from vibrating when the polishing head polishes, so that transverse vibration deviation of the polishing head in the polishing process is avoided, a