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What are the general choices of positioning datum for precision parts machining?

February 16, 2023

Precision parts processing nuts, studs, stainless steel production, with now is more and more intelligent, in the production of these equipment parts, choose accurate, high standard equipment, with the progress of science and technology, intelligent, automated instruments, equipment in the circulation of various fields has a very fast speed, which brings a new stage of challenges and opportunities for the development of precision parts.

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In this paper, we analyze the market demand and process concept of precision parts, combine the skills and problems in actual processing (limited to the scope of pincer work), and explore the solutions and techniques of the problems related to precision parts processing, so as to improve the quality of precision parts, improve the contradiction between market supply and demand, and promote the development of technological and intelligent society.

 

In actual production, the structure of each part may be very different, which also greatly increases the difficulty of processing. But if you look carefully, you can find that the basic geometric composition of the part is nothing more than the outer circle, bore, plane, thread, tooth surface, surface and so on several, so as long as you master the processing of these shapes, the difficulty of precision parts processing can also be significantly reduced.

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In the process of precision parts processing, the positioning reference is reasonable to choose or not to determine the quality of the parts, and whether to ensure the dimensional accuracy of the parts and mutual position accuracy requirements, as well as the processing order between the surfaces of the parts have a great impact on the arrangement. If the fixture is used to install the workpiece, the choice of positioning reference will also affect the complexity of the fixture structure. Therefore, the selection of the positioning datum is a very important process issue in the machining of precision parts.

 

Nowadays, mechanization and automation have been realized in the production process of parts, so the automated processing system can automatically monitor its operation status, and automatically adjust its parameters to achieve the best condition and self-organization capability when it is subject to external interference or internal excitation, thus significantly improving the efficiency of rough and finish machining while ensuring the machining accuracy.