Automobile cable cutter

The utility model discloses an automobile cable cutter which comprises a cutter base, the cutter base is fixedly connected with a supporting plate, a fixing sleeve is fixedly connected to the portion, below the supporting plate, of the cutter base, a threaded rod is arranged on the supporting plate, the bottom of the threaded rod is in threaded connection with a square thread sleeve, the bottom of the square thread sleeve is fixedly connected with a cutting knife, and the lower portion of the square thread sleeve is movably sleeved with a guiding square ring. The top of the screw rod is fixedly sleeved with a worm gear, the supporting plate is fixedly connected with a motor, and the output end of the motor is connected with a worm. A horizontal through hole penetrates through the fixing sleeve, a vertical groove is vertically formed in the horizontal through hole and slidably provided with a pressing ring, the top of the pressing ring is connected with a reset spring, the bottom of the pressing ring is connec