What Is The Processing Sequence Of CNC Precision Parts | CNCLATHING

The precision and machining error of CNC precision parts are terms to evaluate the geometric parameters of machined surfaces. The measurement accuracy tolerance level used, smaller level, higher accuracy, the larger the value, the greater the error. High machining precision and small machining error On the contrary, the actual parameters obtained by the machining method are not accurate. From the perspective of function, as long as the hardware processing error of die parts in the tolerance diagram part is required, it can represent the processing accuracy of precision parts.

Position accuracy refers to the difference of actual position accuracy between CNC precision parts after machining. Positioning accuracy evaluation method 8: parallelism, verticality, inclination, concentricity, symmetrical position, and full beating. The position accuracy is controlled by the position tolerance, and the tolerance of each item can also be divided into 12 accuracy levels.

Analyze the relationship between dimensional accuracy, shape and position accuracy of die parts. Generally, when designing the machining accuracy of mechanical parts, the shape error should be controlled in the shape tolerance, and the position error should be less than the dimensional tolerance. That is, on the surface of important parts or precision parts, the required shape accuracy should be higher than the required position accuracy, and the position accuracy should be higher than the required higher dimensional accuracy.