The invention provides a method and device for adjusting the axle distance of a multi-line
slicing machine, and the method comprises the following steps: calculating the
standard distance between main roll shafts according to the size of a
single crystal to be
cut; the rotation angle of each main roller shaft is calculated according to the
standard distance between the main roller shafts; the rotating
assembly is rotated according to the rotating angle, and the actual distance between the main roller shafts is controlled; and performing
single crystal cutting. The invention has the beneficial effects that the actual distance between the main roller shafts meets the
process requirements of
silicon single crystal cutting, and the optimal shaft distance for
cutting silicon wafers with various specifications and sizes is met, so that the cutting line arch of a slice is small, the line breaking rate and the line
jumping rate are low, and the quality yield of the slice is effectively improved; through the arrangement of the multiple sets of positioning holes, the rotating
assembly can rapidly and accurately rotate by a corresponding rotation angle, the rotating
assembly and the positioning assembly can be rapidly positioned and connected, the structure is simple, and installation is convenient.