What are the inspection standards for machined parts?

Machining refers to the removal of material by mechanical precision machining, which is the abbreviation for machining. Precision cutting, that is, precision cutting, is processed by high-precision cutting machinery. Using high-precision processing machine tools, processing high-precision parts, and using error compensation technology to improve the machining accuracy of parts is the way to achieve precision machining of parts. Are there any inspection standards for machined parts?

Basic principle: This acceptance method only accepts materials of 100% specified size. For workpieces with matching requirements, the size inspection must conform to Taylor's principle, and the working size of the hole or shaft must not be larger than the actual size.

Principle of minimum deformation: In order to ensure the reliability and accuracy of the measurement results, the influence of various factors should be avoided and minimized during deformation planning.

The principle of the shortest dimension chain: In order to ensure the required measurement accuracy, the measuring chain should be as short as possible.

Closing principle: When the measurement is performed, if the closing condition is met, the sum of the interval differences is equal to zero, that is, the closing principle. Basically agree with the principle: the vehicle benchmark should conform to the design benchmark and process benchmark.