High-stability laser 3D machining device

The utility model discloses a high-stability laser 3D (three-dimensional) processing device, which comprises at least one group of laser control modules arranged on a linear module at intervals, each laser control module comprises a laser, an isolator, a beam expander and a galvanometer, the linear module is provided with a fixed support driven by the linear module in a matched manner, and the fixed support is provided with a laser light source. A fixing plate used for positioning an isolator is arranged on the fixing support, one end of the isolator is connected with a light outlet of a laser, the other end of the isolator is connected with a light inlet of a beam expander, and an adjusting plate used for adjusting the position of a reflector and guiding a light beam path from the beam expander to a galvanometer is arranged on the fixing plate. According to the utility model, the number of the galvanometers is increased, the galvanometers are spliced to form a larger scanning area, the galvanometers are prev