Catalyst carrier 3D laser line scanning positioning device

The utility model discloses a catalyst carrier 3D laser line scanning positioning device, which belongs to the technical field of laser line scanning positioning and comprises a base plate, a clamping component is fixedly connected onto the base plate, an arc-shaped seat is arranged below the clamping component, two ends of the arc-shaped seat are rotatably connected with second rollers, and the second rollers are rotatably connected with the base plate. A second motor is installed on the arc-shaped base, and an output shaft of the second motor is fixedly connected with one of the second rolling wheels. According to the catalyst carrier 3D laser line scanning positioning device, by arranging a transmission assembly, a second gear, a moving structure and a scanner, during scanning, a second motor drives a second rolling wheel to rotate, so that each face of a catalyst carrier can be kept exposed outside through rotation, meanwhile, the transmission assembly is in meshing transmission with the second gear, and