ВИЗНАЧЕННЯ ТЕХНІЧНОГО СТАНУ ФРЕЗЕРНОГО ВЕРСТАТУ З ЧПК З ГОРИЗОНТАЛЬНИМ РОЗМІЩЕННЯМ ШПИНДЕЛЮ

Metal cutting milling machines with CNC, which have a horizontal arrangement of the spindle, are widely distributed in production and have their own specifics in terms of technological capabilities. Interchangeable satellite tables are often used to fix workpieces, which simplifies the process of technological preparation of production and creates the possibility of effective implementation of flexible technologies. The process of metalworking of products is accompanied by the occurrence of cutting forces that act on the machine, device, tool and part.  The result of such efforts are elastic deformations of the elements that perceive them and lead to processing errors.  Therefore, the task of determining the amount of compliance of the elements of the technological system of the machine tool and taking into account such data in the control program is relevant. CNC milling machines with a horizontal spindle and a rotary table often use interchangeable machine tools-satellite tables, on which the workpieces are fixed. When processing from the action of cutting forces, it provides elastic deformations of the elements of the technological system, which should be taken into account when preparing control programs. One of the options for obtaining such information is the study of the functionality of the machine elements and their application by simulating workloads. To determine the technical condition of the milling machine and data on the compliance of its elements with the machine tool, a diagnostic device was developed, which is installed on the machine table similarly to the satellite table. By simulating working loads on the moving measuring plate of the device with a measuring mandrel, the accuracy of the output of the cutting tool in the given coordinate is determined. Imitation forces are created by springs along the X, Y and Z coordinates when the measuring mandrel is moved by the machine tool drives. The use of a diagnostic device in production conditions creates an opportunity to timely detect deviations of the parameters of the CNC machine from the passport data, as well as data on the compliance of the elements of the technological system. The use of the obtained data in the control program creates conditions for reducing the probability of processing errors.