What is the method of inspecting the machining of mechanical parts?

During the machining process of mechanical parts, it is also normal for faults to occur, but they should be solved in time. However, sometimes, some faults cannot be found, so they are only found later in use, so many users are in It is very important to learn how to inspect the product when making a choice. If you find a problem after buying it back, some merchants are not responsible, then let's take a look at the inspection methods for mechanical parts processing.

I. Measurement method of outer diameter

When measuring outer diameter, it is necessary to measure two parts every week and record them. When the diameter of the workpiece is greater than 50 mm, the straightness should be checked, and the surface of the knife edge ruler should be in contact with the outer diameter bus bar to observe the width of the floor slab, and then judge it against the standard optical gap;

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Second, the inner diameter measurement method

When measuring the inner diameter of the part, it only needs to be measured three times a week, and make a record. For the length of the same diameter greater than 40 mm, the cylindricity should be checked, and two larger position intervals should be obtained within the direction range of the length of the same diameter. Calculation of cylindricity error;

Three. Measurement method of external thread

The outer diameter is measured by a spiral distance meter or a three-pin distance meter , the small diameter is detected by a spiral distance meter (general gauge);

Fourth. General gauge) inspection, inner diameter outer diameter outer diameter inner diameter inspection;

5. Surface roughness inspection

By the method of sample comparison Comparison and judgment;

6. Flatness inspection

The invention provides an adjustable support on a flat plate, and the measuring surface of the part faces upwards , adjust the support point to make the height of the three points equal, and the measured peak and valley value is the flatness error of the plane.

The above points are our inspection methods for mechanical parts processing. Today we will explain it here first. For more information, please pay attention to Dongguan YIFENG METAL See the tech website for details.

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