Modeling of the Projection Control Roundness Raceway of the Inner Ring Race of a Ball Bearing Support

Abstract

The article discusses issues related to the process of controlling the deviation of the shape of complex-profile surfaces of parts. The object of research is the inner ring of a ball bearing support, the subject of research is the possibility of determining the deviation of the raceway shape by a non-contact method. The analysis of the methods of machining the raceway showed the urgency of the problem of ensuring the accuracy of control operations and the need for the development of means and methods of control capable of ensuring sufficient measurement accuracy. The article researches the possibility of using projection control, sets the accuracy limits for determining the deviation from roundness. A mathematical model for the control of the raceway has been obtained, based on the geometric dependences of the individual elements of the inner ring of the support. The experiment made it possible to set the possible obtained control accuracy depending on the values of errors in the measurement process. Analyzing the obtained values, it can be concluded that the mathematical model makes it possible to apply the revealed dependencies to implement the method of projection control of the raceway shape.