Dimension-variable cutting grinding tool for non-standard part machining and implementation method

The invention discloses a size-variable cutting grinding tool for non-standard part machining and an implementation method, relates to the technical field of non-standard part machining equipment, and aims to solve the problems that different cutting millstones need to be replaced for different inner diameters, operation is troublesome, fine adjustment is inconvenient, and when the cutting millstones are polished to the limit, manual observation is not timely, and the machining efficiency is high. In order to solve the technical problems that a servo motor does idle work all the time after a cutting grinding disc reaches the limit due to the fact that the size adjusting component is arranged on a connecting column, a protective shell is arranged on the outer side of a supporting disc, and a cutting grinding tool adjusting component is arranged on the protective shell in a penetrating mode; the output end of the size adjusting component corresponds to the end, located on the inner side of the protective shell,