Adjustable knife rest structure with double air cylinders for intelligent electric burning cutting machine

The utility model relates to an adjustable knife rest structure with double air cylinders for an intelligent electric burning cutting machine. The adjustable knife rest structure comprises a knife rest shell body, a stroke-adjustable air cylinder and an electric burning plate. The stroke-adjustable air cylinder is vertically arranged in the middle of the lower end face of a top plate, two ends of the top plate are connected with the upper ends of unthreaded rods arranged symmetrically and vertically, and a lower end extension bar of the stroke-adjustable air cylinder is connected with a guide plate connecting block. A lifting air cylinder is vertically arranged in the middle of the lower end face of the guide plate of the stroke-adjustable air cylinder, a lower end extension bar of the lifting air cylinder is connected with the transversely arranged guide plate through a buffer spring, a guide tube connected with the lower end of the guide plate downwards penetrates through a bottom plate and is connected wit