Cable sheath outer side trimming device

The utility model provides a cable sheath outer side trimming device, which relates to the technical field of cable processing, and comprises a sleeve body, a plurality of arc-shaped plates are fixed on one side of the sleeve body along the circumferential direction at equal intervals, and conical sheets are fixed on the inner walls of the plurality of arc-shaped plates close to the edge of one side. A plurality of arc-shaped plates are arranged between the inner walls of the protective sleeve body, a handle is rotated to enable the threaded column to move in the protective sleeve body, the threaded column is connected between the inner walls of the protective sleeve body in a threaded mode, a conical block is fixed to one side of the threaded column, and the inclined face of the conical block is attached to the inclined faces of a plurality of conical pieces. When the threaded column moves, the conical block can be driven to make contact with the multiple conical pieces, due to the fact that the inclined fac