Elastic grounding device for ship body section robot welding

The invention relates to an elastic grounding device for ship body section robot welding. The elastic grounding device comprises a friction guiding floating mechanism, an elastic pre-tightening mechanism arranged in the friction guiding floating mechanism and an insulation fixing mechanism fixedly connected with the side portion of the friction guiding floating mechanism. The friction guide floating mechanism comprises a U-shaped base and a floating guide block floating up and down along the U-shaped base, and a conductive sliding block is connected to the lower portion of the floating guide block. The elastic pre-tightening mechanism comprises a floating pre-tightening rod, one end of the floating pre-tightening rod is connected with the floating guide block, and the other end of the floating pre-tightening rod is connected with the U-shaped base. When the grounding device is used, the conductive sliding block and the floating guide block elastically float up and down during operation, so that the grounding