Machine tool with device for steel pipe welding and test specimen cutting

Disclosed is a machine tool with a device for steel pipe welding and test specimen cutting. The machine tool is characterized in that a reducer (3) is mounted on a frame (2), a handle (4) is mounted on a driving shaft of the reducer (3), one side of a connecting plate (5) is mounted on a driven wheel (3-1) of the reducer (3) while the other side of the same is mounted on an index plate (1) of the machine tool, a burner mounting hole is formed in a support (7), a flame cutter (6) and the support (7) are respectively mounted on the frame (2), and a burner (6-1) of the flame cutter (6) is mounted in the burner mounting hole of the support (7) and is located above the index plate (1). The machine tool has the advantages that machining of test specimens is high in efficiency, and as is shown in the test, it takes only 1 minute and 40 seconds to cut one weld crater in a phi 273*7 steel pipe; quality of the test specimens is good, angle error of a beveled edge is less than +/-1 degree, and the surface of the beveled