Connecting wire rubber shell inserting device

The invention discloses a rubber shell inserting device for a connecting wire. The rubber shell inserting device comprises a second wire fixing mechanism, a terminal fixing mechanism and a rubber shell inserting mechanism, wherein the second wire fixing mechanism comprises a wire fixing unit and a first driving part, and the first driving part is in driving connection with the wire fixing unit; the terminal fixing mechanism comprises a first terminal fixing unit, a second terminal fixing unit and a second driving part; the second driving part drives the first terminal fixing unit and the second terminal fixing unit to be closed or opened so as to clamp or release the terminal, and the head of the terminal is exposed out of the outer side, located on one side of the rubber inserting shell, of the terminal fixing mechanism so as to be used for pre-inserting; the rubber shell inserting mechanism comprises a shell inserting unit and a third driving part, and the third driving part is in driving connection with th