Anti-damage cutting mechanism for 3D laser printer

The invention relates to an anti-damage cutting mechanism for a 3D laser printer, which comprises a wire cutting machine main body, a processing bin arranged in the wire cutting machine main body, a cross-shaped rail arranged at the internal corner of the processing bin, and four fixing parts which are arranged on the cross-shaped rail in a sliding manner and can be attached to the internal corner of the processing bin, the fixing shaft is arranged in the center of the bottom end of the cross-shaped track, the traction part is arranged at the lower end of the fixing shaft in a rotating and elastic telescopic mode, and the alignment part is arranged in the center of the upper end of the cross-shaped track. The traction part is separated from the alignment part and rotates, so that the four fixing parts are pulled by the four ropes, the four fixing parts are clamped and fixed to the base plate along the cross-shaped track in a diagonal mode, at the moment, stable cutting at any angle can be achieved on one plan