The requirements of mechanical processing plants for the precision of mechanical processing

The mechanical processing plant emphasizes that mechanical processing must meet a certain degree of precision, which refers to the level of consistency between the actual main geometrical parameters of the steel parts after mechanical processing and the idealized values u200bu200brequired by the part drawings. The level of inconsistency among them is called production and processing deviation.
The production and processing precision of a mechanical processing plant consists of three levels: on the one hand, it is the precision of the specifications, which limits the deviation of the specifications between the standards between the two standards of the production and processing surface to not exceed the necessary scope; on the other hand, the precision of the geometric shapes, Limit the deviations of the macroeconomic geometric shapes of the production and processing surface, such as roundness, cylindricity, parallelism, and straightness.

Another aspect is the precision of the mutual parts, which limits the mutual part deviations between the two standards of the mechanical processing factory's production and processing surface layers, such as coaxiality, flatness and parallelism. The precision of production and processing is the level of the main parameters of the actual specifications, appearance, and parts of the surface of the parts after production and the main parameters of the idealized geometry specified in the engineering drawings.

The main parameters of ideal geometric figures are average specifications for specifications; circles, cylinders, planes, spheres, parallel lines, etc. for surface geometric figures; In terms of location, it means parallel plane, vertical, coaxial output, symmetry, etc.

The deviation of the main parameters of the main parameters of the geometric figure and the main parameters of the idealized geometric figure is called the production processing deviation. Production processing precision and production processing deviation are all professional terms for commenting on the main parameters of the production and processing surface geometry. The precision of production and processing is considered by the tolerance level. The smaller the level value, the higher the precision; the deviation of production and processing is expressed by the standard value, and the larger the standard value, the greater the deviation.