Abstract: This invention addresses an inspection robot for live transmission line cables that is comprised of a pair of guide rollers located on each side of the robot in order to guide the conductor into its position alongside the pulleys that support its weight and ensure its movement; a worm thread axis and springs that press the guide rollers against the conductor; where the gap between the guide rollers is adjusted previously through a disc that triggers a worm thread mechanism, in order to size its opening to the gauge of the conductor that will be inspected; and a mechanism coupled to the hoisting eyebolt whereby when this eyebolt is pulled, the sensor opens to receive the conductor and when the robot is supported by the conductor and the eyebolt is loosened, a spring forces the sensor into its closed position.