Container standard corner fitting milling machine

The utility model discloses a container standard corner fitting milling machine which comprises three double-head milling machines arranged side by side and a machining conveying line, a machining channel penetrating through the three double-head milling machines is formed between two tool bits of each double-head milling machine, and a first clamp is arranged on the front section of the machining conveying line. The second clamp is arranged on the rear section of the machining conveying line. The first clamp and the second clamp move back and forth in the direction of the machining channel. The first clamp comprises a rotary workbench, the feeding conveying line is arranged at the front end of the machining conveying line, and the discharging conveying line is arranged at the rear end of the machining conveying line. The mechanical arms are arranged between the buffer conveying line and the machining conveying line, and the downstream of the third double-head milling machine is provided with a mechanical arm