Device for machining rolls in a rolling stand

A device for machining the working surfaces of a plurality of rolls which are mounted ready for use in a rolling stand and which form a common sizing pass, comprising at least one tool outside the sizing pass, said tool positioned to be radially and axially guided over the working surface of a sizing pass of at least one driven roll, a measuring device positioned inside the sizing pass, said measuring device positioned to continuously or repeatedly measure the cross-sectional dimensions of said sizing pass, a computer for comparing actual values obtained by the measuring device with predetermined desired values, means for guiding the tool continuously over the working surface of the roll in dependence upon the differences between the desired values and the actual values, and signal means for passing a signal between said computer and said means for guiding the tool.