Cutting machine for door plate

The utility model discloses a cutting machine for a door plate, which comprises a material conveying and supporting mechanism for supporting and feeding a steel plate, a limiting mechanism for clamping and fixing the steel plate is arranged at the upper end of the material conveying and supporting mechanism, and a cutting mechanism for cutting the limited steel plate is arranged on the upper side of the limiting mechanism. The limiting mechanism and the cutting mechanism are connected with the conveying and supporting mechanism; the conveying supporting mechanism comprises a supporting box, frame bodies are arranged on the two sides of the supporting box, and supporting rollers are arranged at the upper ends of the frame bodies and on the supporting box at intervals. By means of the conveying supporting mechanism, the limiting mechanism and the cutting mechanism, feeding and discharging operation can be conveniently conducted on a steel plate, the steel plate is clamped and limited in the middle of a cutting