Auxiliary accurate stopping mechanism of horizontal boring machine for machining of special vehicle machinery

The auxiliary accurate stopping mechanism of the horizontal boring machine for machining the metal of the special vehicle comprises a boring machine base, a first supporting table is hinged to the edge of one side of the top end of the boring machine base, an arc-shaped supporting frame is fixedly arranged at the upper end of one side of the outer wall of the first supporting table, and a hydraulic rod is arranged on one side of the top end of the arc-shaped supporting frame in a penetrating mode. A machining spindle is rotationally arranged on one side of the outer wall of the first supporting table, and a clamping groove is formed in the middle of one side of the outer wall of the machining spindle. The hydraulic rod is installed at the upper end of the arc-shaped supporting frame, the hydraulic rod is shrunk at the upper end of the arc-shaped supporting frame in the machining process when a tool is installed on the tool connector at the upper end of the machining main shaft, and therefore rotary machining