Combined turning tool bar with adjustable center height

The utility model discloses a combined turning tool bar with adjustable center height, which comprises an upper tool bar and a lower tool bar, the upper part of the left end of the lower tool bar is provided with a groove, the upper tool bar is arranged in the groove and can move left and right relative to the lower tool bar, and the bottom surface of the groove is provided with a first inclined surface which is inclined upwards from left to right. A second inclined face inclining downwards from left to right is arranged on the bottom face of the upper tool bar and attached to the first inclined face, an adjusting structure is arranged between the upper tool bar and the lower tool bar and used for pushing and pulling the upper tool bar, a tool groove is formed in the top of the left end of the upper tool bar, and a turning tool blade is installed in the tool groove. The upper cutter bar and the lower cutter bar are tightly pressed through a bolt assembly mounted in a lathe; according to the turning tool, the