Polishing mechanism and graphite gas guide ring machining device

The utility model relates to the technical field of graphite processing, in particular to a polishing mechanism and a graphite gas guide ring processing device, which comprise a box body, a working table and a processing center device, the bottom of the box body is fixedly connected with universal wheels, the working table is fixedly connected to the top of the box body, and the processing center device is arranged on the working table. The machining center device is located on one side of the workbench, the bottom of the machining center device is fixedly connected to the top of the box body, the machining center device is in an L shape, a third motor is fixedly connected to the interior of the working end, located over the workbench, of the machining center device, and a lead screw is fixedly connected to the output end of the third motor; a cylinder of a hollow structure is arranged on the outer side of the lead screw, the top of the cylinder is fixedly connected to the bottom of the working end of the mac