Rotary immersion type machining device of electric machining machine tool

A rotary immersion type machining device of an electric machining machine tool comprises a shell, a rotary table, a working table top and a bottom plate. The shell is provided with an inner cavity, and the inner cavity is divided into a liquid immersion cavity and a liquid receiving cavity by the working table and the bottom plate; the bottom plate is horizontally arranged and is fixed relative to the shell; the working table is rotationally connected to the rotary table relative to the shell, and a gap is formed between the peripheral part of the working table and the bottom plate; a liquid receiving groove is formed in the liquid receiving cavity, is located below the gap and is communicated with a liquid discharging pipeline, so that the working liquid in the liquid immersion cavity flows into the liquid receiving groove through the gap and is discharged through the liquid discharging pipeline. According to the utility model, the overall reliability of the device is improved, the service life is longer, an