The division of CNC Machining
operations can generally be carried out as follows:
(1) The tool concentration sorting method is to divide all the parts that can be completed on the part with the same tool according to the tool division process. In the other parts that can be completed with the second knife and the third. This reduces the number of tool changes, compresses the dead time, and reduces unnecessary positioning errors.
(2) Sorting method of processing parts For parts with a lot of processing contents, the processing part can be divided into several parts according to its structural characteristics, such as inner shape, shape, curved surface or plane. Generally, the plane, the positioning surface, and the rear processing hole are first processed; the simple geometric shape is processed first, and the complicated geometric shape is processed; the lower precision part is processed first, and the processing precision requirement is higher.
(3) In the rough and fine processing, the parts that are prone to processing deformation need to be shaped due to the deformation that may occur after roughing. Therefore, in general, the rough and fine machining must be separated. .
In summary, when dividing the process, it must be based on the structure and process of the part, the function of the machine tool, the amount of CNC machining content of the part, the number of installations and the production organization status of the unit. It is also recommended to adopt the principle of process concentration or the principle of process dispersion, which should be determined according to the actual situation, but it must be reasonable.
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