In the process of machining precision mechanical parts, we generally focus on the machining accuracy of the parts. So what are the main points of the precision of mechanical parts? In the precision machining factory, it can be concluded that: it mainly refers to the fact that after machining by machine tools, the parts meet the standard parameters in terms of aggregate shape and size, and the actual size of the parts and the theoretical design size The gap between them is that the smaller the machining error, the longer it can be said that the machining precision of this precision mechanical part is high.
Dimensional precision is the main factor, and the content of its precision control is mainly to control the dimensional error between the surface of the part and the design standard. The second is the set shape accuracy, that is, to evaluate the overall set shape of the part, and to control the set shape error within a reasonable range. The position of the parts is consistent with the position requirements of the machine tool, and the evaluation criteria include parallelism, circumference, and positional verticality. The control of the above elements is the specific connotation of controlling the processing fineness of mechanical parts.
The specific method to improve the machining precision of mechanical parts is to control the original error:
The control of the original error in the machining of precision mechanical parts is the primary method to improve the machining precision of mechanical parts. It mainly has two aspects, one is to control the processing tools and machinery, providing measuring tools, tools, fixtures, etc., and the other is to control the processing method of the processing process, and control the errors caused by factors such as heat and excessive tool wear during precision machining. , and take measures to select the processing error generated by it. Therefore, it is necessary to make a detailed analysis of the tools, machine tools, heat, force, etc. before the machining of precision mechanical parts, and then make a solution. The use of errors without creating hair can improve the machining precision of mechanical parts. This method needs to rely on the reasonable judgment of technicians and understanding the machining process of precision mechanical parts.