АНАЛІЗ МЕТОДІВ ШЛІФУВАННЯ ЗІ СХРЕЩЕНИМИ ОСЯМИ РОЗПОДІЛЬНОГО ВАЛАТА КРУГА

Abstract

An analysis of the methods of grinding camshafts with crossed axes was carried out. The camshaft is the main part of the engines and gearboxes of motor transport, therefore the reliability, correctness and durability of the assembly depends on the accuracy of their manufacture. Therefore, for the manufacture of camshafts, there is a need for high-precision specialized machines for their processing. As a result of the influence of the accuracy of processing camshafts on their competitiveness in the market, there is a need to improve and modernize their processing.This article provides an overview of modern machines for grinding the surfaces of camshafts, in particular machines of the Kharkiv Machine Building Plant and Junker (Germany). An overview of publications devoted to the issue of surface treatment of camshafts and crankshafts is also given. In particular, the study of the process of grinding the camshaft with an approximate tool for one institution, the characteristics and waviness of vibrations during grinding, the problems of managing the grinding process and the measurement of parameters affecting the grinding process are considered. An analysis of the existing modular three-dimensional geometric modeling of tools, the processes of removing the allowance and forming the support necks of the camshafts during grinding in one facility with crossed axes of the tool and the part was carried out. The advantage of this method is the ability to take into account the shape of the part and not take into account the radius of the tool when grinding the surfaces of camshaft cams on CNC machines. This increases the quality and productivity of camshaft surface treatment.