Inner protection device of gear hobbing machine

The utility model discloses a protection device in a gear hobbing machine, and belongs to the technical field of gear hobbing machines. In order to solve the problem that splashing scrap iron is difficult to comprehensively collect by an electromagnetic device which is locally arranged in an existing product, the utility model provides the following technical scheme that the scrap iron collecting device comprises a protection table consisting of a base and a shell cover, and a collecting box for collecting the scrap iron is arranged on the outer wall of the right side of the protection table; and a material placing structure for conveniently feeding and discharging the hollow gear is mounted on the protection table. The overall electromagnetic device is arranged on the inclined face of the shell cover of the protection table, so that splashing scrap iron can be comprehensively adsorbed and collected when the hollow gear is machined, then the adsorbed scrap iron is collected in advance under the action of the