The embodiment of the invention provides a combined drilling
machine tool and a control method of the combined drilling
machine tool. The combined drilling
machine tool comprises a machine base, a driving
assembly, a vertical spindle box, a horizontal spindle box, a supporting
assembly and a horizontal beam. When the horizontal
gun drill is clamped by the horizontal main shaft, the supporting
assembly moves to the supporting position to support the horizontal
gun drill; and when the horizontal main shaft clamps the horizontal non-gun-
drill tool, the supporting assembly moves to the avoiding position to avoid the horizontal non-gun-
drill tool. The horizontal beam is used for driving the horizontal spindle box and the supporting assembly to move in the vertical direction. According to the combined drilling
machine tool, the vertical spindle box and the horizontal spindle box are integrated,
machining in the vertical direction and the first horizontal direction can be completed in one-time workpiece clamping, the workpiece clamping frequency is reduced, and the
machining efficiency is improved; in the horizontal
machining process, supporting or avoiding is achieved through automatic movement of the supporting assembly, the supporting assembly does not need to be manually and frequently disassembled and moved away, and the machining efficiency and the machining precision are improved.