The emergence of some cnc machining methods has greatly improved the role of our industry and all aspects. The performance of all aspects is also very good. The processing of precision CNC machining parts is also like this, so the possibility and convenience of precision CNC machining parts processing, The following is a detailed description of the small series of CNC precision CNC machining products, Mainly the size data on the part processing pattern should fit the programming guide The conditions for the geometric elements that make up the contour of the part should be sufficient (1) The dimensioning method on the part drawing should conform to the characteristics of CNC machining. On the CNC machining drawing of precision CNC parts, the size should be quoted by the same reference or the coordinate size should be directly given. 1. This method of labeling is easy to program and easy to reconcile between dimensions. It brings a lot of convenience in adhering to the divergence of design basis, process reference, detection reference and programming origin setting. 2. Because the part designer usually thinks about the application characteristics such as assembly in the dimensioning, he has to adopt the partial dispersion labeling method, which will bring many inconveniences to the process layout and numerical control processing CNC machining.
3. Since the precision CNC machining accuracy and repeat positioning accuracy of the precision CNC parts are very high, the application characteristics are not destroyed due to the large accumulation error, so the local dispersion labeling method can be changed to the same reference index size or directly to the coordinate size. The notation. (2) Calculate the base point or node coordinates during manual programming. In automatic programming, precision parts CNC machining is defined by aborting all geometric elements that make up the part's outline. Therefore, when analyzing the part drawing, it is necessary to analyze whether the given conditions of the geometric elements are sufficient.
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