Precision casting turbine blade linear cutting integrated machining tool and machining method

The invention relates to the technical field of turbine blade machining methods, in particular to a precision casting turbine blade linear cutting integrated machining tool and a machining method. A precision casting turbine blade linear cutting integrated machining tool comprises a base, a cover plate, a positioning block, a plurality of compression bolt assemblies and a positioning pin. The cover plate is arranged on the top of the base, the positioning block is arranged on the inner side of the base, and the compression bolt assemblies are arranged on the cover plate. The positioning pin is fixedly connected with the positioning block and located on the side edge of the positioning block. More machining contents can be completed through one-time clamping and positioning, accumulative errors caused by tool manufacturing errors and clamping and positioning errors can be effectively reduced, the machining contents of the tenon tooth part are integrated as much as possible through the design of the special pre