Cylinder machining device of extruder

The invention relates to the technical field of barrel welding, in particular to an extruder barrel machining device which comprises a bin, the upper end of the bin is provided with an opening, the bottom of the bin is of an inclined structure, and an outlet is formed in the low position of the bottom of the bin; an adjusting plate set is arranged at the lower end of the bin body and can control workpieces to be output from the bin body. A welding assembly and a supporting and clamping assembly are arranged on the side edge of the bin body. According to the device, the adjusting plate set and the output bin body 1 capable of controlling the pipe bodies one by one are arranged, so that the pipe bodies which can be welded into the same extruder cylinder are supported on the supporting and clamping assembly, and the positions of the pipe bodies are limited by the supporting and clamping assembly, so that the multiple pipe bodies are welded to form the extruder cylinder under the work of the welding assembly; the