Accurate grinding device for metal ring machining

The utility model belongs to the technical field of accurate grinding devices, and particularly relates to an accurate grinding device for metal ring machining, which comprises a support column, a rectangular block, a collecting box and a workbench, the support column is fixedly mounted on the left side of the bottom of the workbench, the rectangular block is fixedly mounted on the left side of the top of the workbench, and the collecting box is fixedly mounted on the right side of the workbench. The two supporting columns are evenly distributed at the bottom of the workbench. According to the accurate grinding device for metal ring machining, the sliding rods, the sliding grooves, the sliding blocks, the clamping rods, the grooves, a motor, a rotating shaft and a rotating rod are arranged, the motor drives the rotating rod to rotate, a metal ring can be displayed in all directions, it is guaranteed that all parts can be fully ground, and therefore the surface quality and glossiness of the metal ring can be i