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 measure 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 adopts a spiral distance meter or a three-pin distance meter Measurement, the small diameter is detected by a spiral distance meter (general gauge);

Four. Gauge (general gauge) inspection, inner diameter outer diameter outer diameter inner diameter inspection;

5. Surface roughness inspection

Comparison of sample blocks

6. Flatness inspection

The present invention provides an adjustable support on a flat plate, the parts With the measuring surface facing upwards, adjust the support points so that the heights of the three points are equal, and the measured peak-to-valley value is the flatness error of the plane.

The above points are our inspection methods for the machining of mechanical parts. Today we will explain it here. For more information, please pay attention to the technology website check the detail information.