Shell machining tool

The utility model belongs to the technical field of shell machining, and particularly relates to a shell machining tool which comprises a workbench and a fixing plate arranged on the workbench, bearing seats are symmetrically arranged at the two ends of the fixing plate, a rotating shaft is arranged in each bearing seat in a penetrating mode, a rotating disc is arranged at the end of each rotating shaft in a sleeved mode, and a connecting plate is fixedly connected to the inner side of each rotating disc. A machining table fixed to the two connecting plates is arranged between the two connecting plates, a mounting hole used for mounting a shell is formed in the machining table, a plurality of protruding parts are arranged on the lower portion of the shell, a plurality of pressing assemblies are arranged on the outer side of the mounting hole, a limiting frame is arranged below the mounting hole, and limiting holes used for allowing the protruding parts to penetrate through are formed in the limiting frame. A