Boring cutter adjusting mechanism

The utility model provides a boring cutter adjusting mechanism, and belongs to the technical field of boring machining. The boring cutter adjusting mechanism comprises a boring cutter rod, a connecting structure and a gauge block. At least one through hole is formed in the radial direction of the boring cutter bar. Wherein each through hole corresponds to one connecting structure, each connectingstructure comprises an adjusting rod and a locking assembly, the adjusting rods are adjustably arranged in the through holes in a penetrating mode, a boring cutter is arranged at one end of each adjusting rod, and each locking assembly can lock the corresponding adjusting rod at the adjusted position. The gauge block can be detachably connected to the adjusting rod, and the two ends of the gauge block abut against the outer wall of the boring cutter and the outer wall of the boring cutter rod respectively so as to determine the locking position of the adjusting rod. Accurate adjustment of theposition of the boring cut