Multi-laser correcting and splicing method used for additive manufacturing equipment

The invention discloses a multi-laser correcting and splicing method used for additive manufacturing equipment. The multi-laser correcting and splicing method specifically comprises the following steps that the scanning range of a single scanner is determined, the scanning range of multiple scanners is determined, and a multi-feature-point image needed by the single scanner and the multiple scanners is drawn; and the drawn first image is guided into multi-laser equipment for conducting etching on first hard paperboards, a two-dimensional imaging device is used for conducting data reading afteretching, a theoretical value and a measured value are compared to obtain a corresponding correction table, the multiple scanners are independently corrected one by one in sequence, finally, the multiple scanners are then spliced, reading data are corrected, and finally the splicing correction result of the multiple scanners is obtained. By means of the method, the splicing correction precision ofthe multiple scanners can