三坐标测量仪主要是测量什么用的？What is a coordinate measuring machine (CMM) mainly used to measure?

主要用于机械、汽车、航空、军工、家具、工具原型、机器等中小型配件、模具等行业中的箱体、机架、齿轮、凸轮、蜗轮、蜗杆、叶片、曲线、曲面等的测量，还可用于电子、五金、塑胶等行业中，可以对工件的尺寸、形状和形位公差进行精密检测，从而完成零件检测、外形测量、过程控制等任务。
​        It is mainly used for the measurement of boxes, frames, gears, cams, worm wheels, worms, blades, curves, curved surfaces and other components in industries such as machinery, automotive, aerospace, military, furniture, tool prototypes and machinery, especially for small and medium-sized accessories and molds. It can also be applied in electronics, hardware, plastics and other industries to perform precision inspection of workpiece dimensions, shapes and geometric tolerances, thereby completing tasks such as part inspection, profile measurement and process control.​

 三坐标主要检测形位公差，包括：
        几何元素的测量：点、线、圆、面、球、弧、椭圆、圆柱、圆 锥、键 槽、曲线、曲面
        几何元素的构造：投影、中分、相交、相切、镜像、拟合、平移、垂直、平行、组合、旋转、偏置线、偏置
        形位公差软件：直线度、平面度、圆度、圆柱度、 圆锥度、球度、距离、夹角、垂直度、平行度、倾斜度、位置度（2D及3D）、对称度、同轴度、 同心度、跳动等
        Coordinate measuring machines (CMMs) mainly detect geometric and dimensional tolerances, including:
        Measurement of Geometric Elements：Points, lines, circles, planes, spheres, arcs, ellipses, cylinders, cones, keyways, curves, curved surfaces
        Construction of Geometric Elements：Projection, midpoint/center division, intersection, tangency, mirroring, fitting, translation, perpendicularity, parallelism, combination, rotation, offset line, offset
        Geometric Tolerance Software Functions：Straightness, flatness, circularity, cylindricity, conicity, sphericity, distance, included angle, perpendicularity, parallelism, angularity, position (2D & 3D), symmetry, concentricity, coaxiality, runout, etc.
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