The Efficiency Of CNC Machine Tools Comes From The Precision Of Equipment Processing

For CNC machine tools, their accuracy mainly includes geometric accuracy, transmission accuracy, motion accuracy, and position accuracy. If there is an accuracy deviation, it should be determined based on the situation reflected by the workpiece accuracy, and various detection tools should be used to determine which type of deviation the machine tool has. Then, the factors that may cause such errors should be checked one by one. Based on the judgment, the mechanical parts should be repaired or the machine tool parameters should be modified, Exclude factors that may affect accuracy deviation.

The radial runout and axial displacement of the grinding wheel spindle will seriously affect the radial runout and lead error of the front edge surface, thereby affecting the indexing. The parallelism error between the grinding wheel head guide rail and the workpiece head centerline will cause the lead to exceed the tolerance, and the accuracy of the indexing plate will affect the indexing accuracy. After inspection, it was found that the spindle runout of the grinding wheel and the centerline between the grinding wheel head and the workpiece were out of tolerance. Therefore, upon inspection of the grinding wheel spindle and guide rail, it was found that there was significant wear on the grinding wheel spindle bearings and guide rail guide wheels. Therefore, the replacement method was adopted.

Therefore, a dual input single output fuzzy controller is designed to implement fuzzy control. The fuzzy controller consists of fuzzification, fuzzy inference decision-making, and anti fuzzification, and its main function is to implement fuzzy algorithms. Fuzzy controllers are divided into two categories: specialized and universal. If a dedicated fuzzy controller is selected, although it has fast inference speed, it is expensive and has poor flexibility. We choose a universal fuzzy controller. If the fuzzy inference decision is run in real-time by the microcontroller software, it will take a certain amount of time, which will lead to poor real-time performance and other issues. If offline fuzzification, fuzzy reasoning decision-making, and anti fuzzification are used in advance to obtain a fuzzy control table, then this table is placed in the microcontroller. When controlling, the problem of poor real-time performance can be solved by controlling the output through table lookup.

In order to improve the machining accuracy and work efficiency of CNC machine tools, it is necessary to control the temperature of the oil tank of the CNC machine tool within a certain range. On the one hand, the change in oil temperature directly affects the temperature field of CNC machine tools, and the change in temperature field also affects the change in displacement field. The change in displacement field inevitably affects machining accuracy.

On the other hand, temperature changes affect the viscosity of the oil. Usually, as the temperature rises, the viscosity of the oil decreases. Excessive viscosity and resistance are detrimental to the start and operation of hydraulic pumps; Low viscosity can easily cause oil leakage and affect the stability of the entire hydraulic system. In addition, excessive temperature can affect the lifespan of hydraulic components and alter the characteristics of hydraulic oil itself. Introduction to the Principle of Fuzzy Control for Fuel Tank Temperature: Anything has inherent fuzziness. It can even be defined as an additional value, therefore, the entire set of theories derived from it is called fuzzy mathematics. An important branch of fuzzy mathematics is fuzzy control. When dealing with complex problems, fuzzy theory is closer to objective laws, especially for time-varying and large delay controlled objects. Fuzzy control is more accurate than traditional control. Fuzzy control is based on manual experience and does not require an accurate mathematical model for the controlled object. For the temperature control of the hydraulic oil tank of CNC machine tools, it is easy for operators to observe the difference between the actual output temperature and the set temperature, as well as the variation value of the temperature difference.