Flatness (such as the flatness of the countertop of the vertical machining center)
Measurement methods include: plate method, plate and indicator method, flat rule method, precision level method and optical method.
Straightness (straightness of a line in a plane or space, straightness of a part, straightness of motion)
The method of measuring the length of straightness is: flat ruler and indicator method, steel wire and microscope method, collimating telescope method and laser interferometer method. Angle measurement methods include: precision level method, self-collimator method and laser interferometer method.
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Verticality (the perpendicularity of lines and planes, the verticality of motion)
Measurement methods are: flat ruler and indicator method, square ruler and indicator method, optical method (such as self-collimator, optical square, emitter)
Rotate
Including radial runout, such as the radial runout of the chuck positioning cone of the shaft end of the CNC horizontal lathe spindle, or the radial runout of the spindle positioning hole.
Periodic axial turbulence, such as periodic axial turbulence of the CNC horizontal lathe spindle.
The end face jumps, such as the jump of the end face of the card determination bit of the CNC horizontal lathe spindle.
Measurement methods are: indicator method, test rod and indicator method, steel ball and indicator method.
Coaxiality or coincidence, such as the coincidence of the hole axis of the CNC horizontal lathe tool and the axis of the spindle
Parallelism (parallelism of line and plane, such as the parallelism of the axis of the CNC horizontal lathe to the movement of the main carriage slide; parallelism of motion, such as the parallelism between the countertop of the vertical machining center and the X-axis axis;)
Isometric, such as the equidistance between the vertical machining center positioning hole and the table rotation axis
Coaxiality , parallelism, equidistance and measurement methods are: flat ruler and indicator method, precision level method, indicator and test stick method.
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