Common form error measuring method

A, guide rail straightness error of the commonly used method 1. Ruler research point 2. The method of feet pull table 3. 4 feeler gauge measuring method. Level measurement method of 2, guide rail parallelism error of the measurement method commonly used machinery and equipment parts such as the basis of the lathe bed, slide, etc. , are generally composed of two or more of the guide surface. Not only to make each guide should meet the requirement of straightness, should also meet the parallelism of a few guide requirements. Parallelism error between measuring guide has the following three kinds of commonly used methods. 1. 2 pull table measurement method. 3 micrometer measuring method. Level with the bridge plate measurement perpendicularity error between the three, guides the commonly used method 1. 90 ° square table method 2. Box type level four, workbench surface flatness measurement error of the commonly used method of measurement workbench surface flatness error measuring, are general rules for using the longitudinal, horizontal and diagonal of workbench face or the straightness error of the maximum radiation direction, the approximate value instead of flatness error. The table flatness common measuring position as shown in figure 6 - 9 points shown in line. 1. 2 feeler gauge measuring method. Leveling ruler table method five commonly used measurement equipment, equipment, main shaft runout error spindle beating in the rotary error was mainly affected by its machining precision, also to a certain extent is affected by the precision of the bearing. So, for the rolling bearing of spindle, beating its measurement error, the rotation of the spindle in sha-lu shall generally be shall not be less than 10 laps. This is because of the revolution of the ball or roller bearings do not agree with the speed of the spindle speed, spindle at high is not consistent. Within one or two to turn, it is difficult to find a maximum of beating. Measurement, the dial indicator to the largest reading in the process of spindle rotation 10 laps, and the difference between the smallest readings as jitter error values. 1. The center line of the spindle taper hole radial circular runout measurement method 2. The spindle taper aperture to the circular runout measurement method 3. Spindle centering shaft neck to neck round to beat the measuring method of 4. The spindle end circular runout and axial channeling dynamic measurement method.