Welding bead brushing and pipe expanding all-in-one machine

The utility model discloses a welding bead brushing and pipe expanding all-in-one machine. A welding cylinder is input to a lifting device by a welding cylinder input orbit; four groups of clamping and moving devices are arranged to respectively correspond to a loading position of the lifting device, a welding bead detecting position of a welding bead detecting device, a welding bead brushing position of a welding bead brushing device and a pipe expanding position of a pipe expanding device; the four groups of clamping and moving devices clamp and move synchronously to clamp and move the welding cylinder to a corresponding next position; finally, the clamping and moving devices clamp and move the welding cylinder finished with the pipe expanding procedure to a welding cylinder output orbit; procedures on all the positions are carried out synchronously, so that utilization rate of each device of the machine is increased. With the adoption of the welding bead brushing and pipe expanding all-in-one machine, automatic grinding and processing production for the welding bead of the welding cylinder is realized, uniform quality of the welding cylinder is ensured, manpower cost is lowered, and production efficiency is improved.