Method for detecting form and position precision of side surface and bottom surface of special-shaped part

A method for detecting the form and position precision of the side face and the bottom face of a special-shaped part is used for detecting the special-shaped part with at least two positioning holes in the bottom face, and a standard block and the special-shaped part are placed on a detection device respectively, so that a plurality of dial indicators can be zeroed according to the standard block, and the detection accuracy of the side face and the bottom face of the special-shaped part is improved. After the special-shaped part is placed again, the form and location tolerance and the dimensional tolerance of the special-shaped part can be directly obtained according to the reading of the dial indicator, the dial indicator is adopted to replace a digital display electronic caliper, the influences of system errors and human factors are effectively eliminated, and the accuracy of multiple forms, positions and dimensions can be detected at a time. When the standard block and the special-shaped part are placed, a