Corner cutting method and device of laser pipe cutting machine and medium

The invention discloses a laser pipe cutting machine corner cutting method and device and a medium, and the method comprises the steps that pipe parameters of a to-be-cut pipe are obtained, and a cutting track of the to-be-cut pipe is generated according to the pipe parameters; determining an exit corner point and an entrance corner point corresponding to each corner of the to-be-cut pipe in the cutting track, and determining a corner radius and a corner buffer area corresponding to the corner according to the exit corner point and the entrance corner point; in the plane cutting process, whether a cutting focus corresponding to the cutting head reaches a corner or a corner buffer area or not is judged; if yes, according to plane cutting parameters corresponding to plane cutting, corner cutting process parameters corresponding to the corner of the cutting head and corner buffer area cutting process parameters corresponding to the corner buffer area are determined, and bright cutting is conducted on the to-be-c