Semi-closed cavity chamfering tool structure and machining method

The invention relates to the field of aero-engine maintenance equipment, in particular to a semi-closed cavity chamfering tool structure capable of well completing semi-closed cavity through hole machining and a machining method. The semi-closed cavity chamfering tool structure comprises a to-be-machined workpiece, a tool bar and a blade, wherein the to-be-machined workpiece is internally provided with a cavity, the cavity communicates with the outside through a to-be-machined hole, the blade is rotatably arranged at one end of the cutter bar, and when the blade rotates to the entering state of the cutter bar, the blade enters the cavity along with the cutter bar through the to-be-machined hole; and when the blade rotates to the cutter bar machining state, the blade machines the to-be-machined hole. The semi-closed cavity chamfering tool structure is particularly suitable for the chamfering process of a through hole of the semi-closed cavity. 本发明涉及航空发动机维修装备领域，尤其是一种可很好完成半封闭型腔通孔加工的半封闭型腔倒角刀具结构及加工方法，包括内设有型腔的待加工工件