What are the processing sequences of precision mechanical parts?

Each processing method has its own processing order. Our operators need to process according to its processing order, and cannot be random, which will have a certain impact on the processed products or cause quality problems. , Precision machining is one of them, so what are the order of precision machining parts?

High-precision parts processing

The arrangement of the machining sequence of precision parts should be considered according to the structure of the parts and the condition of the blank, as well as the needs of positioning and clamping. The key point is that the rigidity of the workpiece is not damaged.

1.The processing of the previous process cannot affect the positioning and clamping of the next process, and comprehensive consideration should be given to the processing process of general precision partsin the middle;

2.First stop the inner shape and inner cavity processing process, and then stop the outer shape processing process;

3.It is best to stop the process of processing with the same positioning, clamping method or the same tool to reduce the number of repeated positioning, the number of tool changes and the number of moving platens;

4.For multiple processes that are stopped in the same device, the process with little damage to the rigidity of the workpiece should be arranged first;

Tool centralized sorting method: It is to divide the process according to the tools used, and use the same tool to process all the parts on the part that can be completed. Using the second knife and the third to do the rest of what they can do. In this way, the number of tool changes can be reduced, the idle time can be shortened, and unnecessary positioning errors can be reduced.

Precision mechanical parts processing

According to the processing part sequence method: For parts with a lot of processing content, the processing part can be divided into several parts according to their structural characteristics, such as inner shape, outer shape, curved surface or plane, etc. Generally, the plane and positioning surface are processed first, and then the hole is processed; the simple geometric shape is processed first, and then the complex geometric shape is processed; the parts with lower precision are processed first, and then the parts with higher precision requirements are processed.

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