Requirements of machining factory for machining precision
2025,08,14
The machining plant emphasizes that the machining needs to meet a certain accuracy, which refers to the consistency between the main parameters of the geometric figure after steel processing and the ideal value required by the part drawing. And the degree of inconsistency between them is called production and processing deviation.
The production and processing accuracy of machining plant includes three levels: on the one hand, the specification accuracy limits the standard deviation between production and processing surfaces, and the specification deviation between standards does not exceed the necessary range; On the other hand, the accuracy of geometric figure limits the macroeconomic geometric figure deviation of production and processing surface, such as roundness, cylindricity, parallelism and straightness.
On the other hand, the accuracy of mutual parts limits the mutual part deviation between the standards of the surface produced and processed by the machining plant, such as axiality, flatness, parallelism, etc. Production and processing accuracy is the consistency level between the actual specifications, appearance and position of the part surface after production and processing and the ideal geometric main parameters specified in the engineering drawing.
The main parameters of ideal geometry, for specifications, refer to the average specification; For the appearance of surface geometry, it refers to circles, cylinders, plans, spheres, parallel lines, etc; For the mutual parts in the middle of the surface, it refers to parallel plane, vertical, coaxial output, symmetry, etc.
In fact, the deviation between the main parameters of the geometry of the parts produced by the machining plant and the main parameters of the ideal geometry. Production and machining accuracy and production and machining deviation are professional terms to evaluate the main parameters of production and machining surface geometry. The smaller the tolerance grade, the higher the accuracy; Use the scale value to represent the production and processing deviation, and the larger the scale value.
