Large bar chamfering machine tool

The utility model discloses a large bar chamfering machine tool, which comprises a body, a machine tool head box, a three jaw chuck, a transverse guide rail, a feeding device, a lifting device, a bar propelling device and a discharging device, wherein the machine tool head box is arranged at the front end of the body; the three jaw chuck is arranged on the machine tool head box; the transverse guide rail is arranged on the body and is positioned behind the machine tool head box; a cutter tailstock is arranged on the transverse guide rail; a longitudinal guide rail is arranged on the cutter tailstock; the feeding device is used for conveying a large bar; the lifting device is positioned in front of the body; the bar propelling device is arranged in front of the lifting device; and the discharging device is positioned on the sideward part of the body. According to the chamfering machine tool, automation of feeding and discharging of the large bar is realized, the production efficiency is increased, the labor intensity is reduced, and the safety performance is good; and the chamfering machine tool has the advantages of compact structure, easiness in operation, reliable work, convenient control and capabilities of effectively adapting to quick clamping and machining of bars of different diameters and different lengths.