Adjustable combined boring tool and boring tool bar structure

The utility model is an adjustable combined boring tool and boring tool bar structure, including a boring tool bar and a boring tool provided on the boring tool bar. Wherein the boring tool adopts the integral hard alloy boring tool which is directly provided on the mounting hole of the boring tool of the boring tool bar; the compacting assembling of the middle part of the boring tool is obtained via compression screws; the slope of the tail end of the boring tool is bunted with the end of the adjusting screw used for adjusting the radial dimension of the boring tool to proceed the matching; the position of the boring tool bar corresponding to the tail end of the boring tool is provided with an eyelet which is used for ejecting the boring tool when dismounting. The adjustable combined boring tool and boring tool bar structure is suitable for the primary processing of the hole, and has the advantages of high integral rigidity, convenient dimension adjusting, good assembling performance, easy dismounting and low manufacturing cost, and the advantages that the boring tool can be sharpened for many times and the processing quality is easy to be ensured.