Centerless grinding of conical surfaces is used on machine tools with longitudinal supply in mass production - for example, the manufacture of bearing rollers. In traditional machining (Fig. 1), the blank (B) turns relative to the cylindrical grinding wheel (GW), with inclination β to the horizontal and γ to the vertical. The support (S) has the plane shape of the contact surface. To ensure high machining precision, the conical surface of the blank must be in continuous linear contact with both the driving and grinding wheels and the support. This is accomplished primarily by introducing a helical channel in the driving wheel. In addition, we need to determination the position, inclination, and width of the support. The calculation of the profile required for the driving wheel with a helical channel was adequately considered, for example, in [1]. However, the determination of the support inclination φ has not been given the attention that it deserves [2-4].
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