INVESTIGATION OF THE PROCESS OF TORCHES DOUBLE-SIDED GRINDING OF PUSHERS WITH DIFFERENT DIAMETERS WITH CALIBRATION PARTS AND WITHOUT THEM
Urgency of the research. Ensuring high performance and precision processing of faceplates of different diameters requires the development of new, high-efficient methods and processing methods. Target setting. In modern conditions of development at automotive and machine-building factories, the receipt of highprecision end surfaces of parts is associated with high requirements for the accuracy and productivity of grinding with the use of modern mechanical processing technologies, which have high requirements for the accuracy and quality of machined end surfaces and should have a large operational life. Actual scientific researches and issues analysis.. Grinding of end surfaces of parts with different diameters of faces, is carried out on two-sided end-grinding machines. Grinding and other finishing operations are complex processes. A known method of simultaneous grinding of rod-shaped parts is known. The disadvantage of the method is that the grinding wheels do not have calibration areas. A known method of simultaneous grinding of two ends cylindrical parts. The disadvantage of the method is that the processing of parts with different face diameters is not considered. Uninvestigated parts of general matters defining. It is necessary to increase the efficiency of parts processing thanks to the improvement of the methods of two-sided polishing of the ends of pushers with different diameters oriented grinding wheels with and without calibration sections due to the balancing of the cutting forces and the rotation of the workpiece in the calibration section. The research objective. The method of two-sided grinding of ends of different diameters with oriented grinding wheels with calibration sections is presented, which provides an increase in the accuracy and performance of parts processing. The statement of basic materials. Improving the accuracy of finishing the end surfaces of parts of various diameters with grinding wheels, is achieved by the fact that the shaping of the ends of the smaller diameter is performed by the maximum diameter of the flat end of one circle, and the shaping of the end face of a larger diameter - is by the calibration section of the second circle, the length of which is equal to the diameter of the larger end and filled with diamond pencil, which moves along a radius, which coincides with the radius of the location of the axes of the parts in the feed drum. Conclusions. For the first time, a universal method of practical application of the model of the accuracy of forming the ends of parts of various diameters, oriented grinding circles with and without calibration plots is presented. The following method simplifies the grinding of the grinding wheel. It does not require special editing, allows you to use regular editing. It allows us to create the preconditions for new highly effective technologies and methods of grinding end faces with different diameter of the ends, as well as their further implementation in production processes.