Influence of Process Parameters on Circle Degree of Grinding Bearing Inner Ring

In this paper, the geometrical characteristics of the circularity of the inner ring are discussed, and the influencing factors and their internal relations are analyzed. The test factors of the roundness of the grinding ring are determined, and the experimental design is taken according to the mixed orthogonal table. The mathematical model of the relationship between grinding roundness and process parameters was established by stepwise regression modeling of the test data. The influence of the grinding process parameters on the roundness was analyzed by three-dimensional surface, and the roundness mathematical model , Come to a few practical conclusions.

    Rolling bearing inner ring channel roundness is an important quality indicators, a direct impact on the bearing work accuracy, stability and service life. Grinding is usually the semi-finishing or finishing process of the inner ring channel, which plays a decisive role in the roundness of the finished inner ring channel. The roundness of the inner ring groove grinding depends on the accuracy and dynamics of the grinding process system Characteristics, but also with the grinding process parameters are closely related. The former, has been valued by many scholars, and carried out a lot of research, thus greatly improving the roundness of the grinding inner ring channel. With the improvement of the grinding process system and the improvement of the dynamic characteristics, the grinding process parameters become the main factors influencing the roundness. Therefore, the influence of the grinding process parameters on the roundness is studied, and the reasonable selection of the process parameters to ensure the bearing channel The grinding roundness, and then to achieve the grinding bearing channel process parameters optimization, it is important. Figure 1 is the grinding wheel bearing inner ring section of the actual contour and the ideal contour error, can be expressed as geometric error