가공된 부품의 정밀도 제어

CNC 밀링 사용의 최적화는 밀링 부품의 특성을 기반으로 합니다.. CNC 밀링 부품 공정의 기술적, 경제적 분석과 연구를 통해, 과학적, 합리적이고 정확한 밀링 매개변수 최적화 수학적 모델이 확립되었습니다., 적절한 최적화 알고리즘이 채택됩니다..

What is the amount of milling?
With the rapid development of modern manufacturing technology, there are more and more parts with various complex forming surfaces and high precision requirements. As one of the main processing methods of this kind of parts, CNC milling processing. The choice of cutting amount will have a greater impact on processing efficiency, 도구 내구성, processing cost and processing quality.

Milling optimization model
Find a set of numerical control milling parameters that minimize the value of the objective function in the feasible area of milling parameters. 그러므로, the key to the optimization of CNC milling parameters is to establish the numerical relationship between the design variables, the optimization goals, and the constraints, 그건, to establish the optimization mathematical model.

In optimal design, the independent parameters that need to be optimized are called optimal design variables. The cutting parameters such as spindle speed, feed speed, milling thickness, cutting width in CNC milling are the factors that affect the realization of CNC milling goals, and are the basic control quantities in the CNC milling process. There is actually the best combination scheme between them. 그러므로, in the mathematical model of numerical control milling parameters optimization, the spindle speed n, the feed speed vf, the amount of back tool ap, the cutting width ae, 등. 사용된다. The cutting amount is a design variable.

Milling objective function
The objective function is a function of design variables and an index for comparing and selecting various design schemes. The objective function of numerical control milling parameter optimization should be consistent with the purpose of numerical control milling processing. The purpose of CNC machining is to maximize economic benefits, 그건, through the best combination of cutting parameters, give full play to the cutting efficiency of machine tools and tools, and under the premise of ensuring the quality of processing, reduce processing costs as much as possible and increase productivity. Both processing cost and productivity can establish a functional relationship with the cutting amount. 그러므로, taking processing cost and productivity as the objective function of numerical control milling consumption optimization is in line with the actual needs of production.

Constraints for milling
The choice of CNC milling amount is limited by technical conditions such as CNC machine tools, 도구, workpieces and processing quality, and the range of cutting amounts available for selection is limited. 그러므로, the constraint conditions for the optimization of numerical control milling parameters should be established based on these restrictions, so that the optimized results are in line with the actual production.

Multi-objective optimization background of cutting parameters
The optimal selection of metal cutting processing parameters is of great significance to ensure processing quality, increase productivity and economic benefits. It is also particularly important for CNC machine tools, especially machining centers. Due to the complexity and uncertainty of the machining process, many factories choose the cutting amount based on experience, but the actual results vary greatly from person to person. In order to control and ensure the quality of processing, give full play to the energy efficiency of CNC machine tools, so that the choice of cutting parameters is changed from empirical judgment to quantitative analysis. With the help of computer technology, the cutting parameters are optimized with simple and reliable optimization algorithms to meet the actual needs of cutting.

The price and labor cost of CNC machine tools are relatively high, and the proportion of tool wear costs is relatively low. 그러므로, in most materials, high milling amount should be used as much as possible. According to this choice, it is possible to reduce the proportion of machine tool labor cost in the part manufacturing cost, which is a positive side. 하지만, high cutting consumption will reduce the durability of the cutting tool, requiring frequent replacement or sharpening of the tool, thereby reducing productivity;
High cutting consumption is prone to waste products and reduces the reliability of machine tools.