The numerical control system is the core brain of the operation of the machining center. The numerical control functions are divided into basic functions and selection functions. The basic functions are necessarily provided, and the selection functions are only provided by the manufacturer when the user selects these functions. The functions of the CNC system must be selected according to the performance needs of the machine tool. When ordering, the required functions must be fully ordered and not missed. At the same time, the waste of low usage rate should be avoided, and the correlation between the functions must be paid attention to. In the alternative CNC system, the performance varies greatly. It should be selected according to the needs, and one should not pursue the high index unilaterally, so as not to cause waste. When selecting multiple machine tools, select the CNC system of the same manufacturer as much as possible to make operation, programming and maintenance more convenient.

Machining accuracy of machining center

Processing accuracy will directly affect the quality of the product. When many people question the accuracy of the machine tool, it will directly affect the buyer's decision. It should be noted that machining accuracy and machine tool accuracy are two different concepts. It is wrong to regard the position accuracy on the manufacturer's sample or product certification as the machining accuracy of the machine tool. The position accuracy indicated on the sample or certificate is the accuracy of the machine tool, and the machining accuracy is the sum of errors generated by various factors in the entire process system, including the errors allowed by the machine tool itself. When selecting the model, you can refer to the evaluation method of process capability kp as the basis for selecting the accuracy. Generally speaking, the calculation result should be greater than 1.33.