Machining fixing device of n-shaped arc type part and machining method

The invention belongs to the technical field of machining of n-shaped arc type parts, and discloses a machining fixing device of an n-shaped arc type part and a machining method. The fixing device comprises a first tool and a second tool. The first tool comprises a first base. A cambered surface supporting plate is fixed to the top of the first base. An equal-height boss is arranged in the middleof the cambered surface supporting plate in the arc direction of the cambered surface supporting plate. A first notch is formed in the edge of the cambered surface supporting plate. The second tool comprises a second base. A first vertical plate is fixed to the top of the second base. An arc-shaped edge matched with the cambered surface of the cambered surface supporting plate is arranged on the top edge of the first vertical plate. A second notch corresponding to the first notch is formed in the arc-shaped edge. By means of the fixing device and the machining method, clamping and fixing can be stably and reliably rea