Balance Inspection Device, Balance Inspection Method, Balance Inspected Crankshaft, Computational Processing Device, And Program

Abstract: A computational processing unit (32) in this balance inspection device (100): generates three-dimensional point cloud data on the basis of measurement results from a surface-profile measuring unit (1); generates surface data on the basis of the three-dimensional point cloud data after having been positionally aligned with respect to a surface profile model defined by a coordinate system in which the designed rotational center axis L of the crankshaft S is the X axis; extracts evaluation-target data that is surface data on evaluation-target areas that include the arms SC of the crankshaft S; computes the gravitational centers and surface areas of cross sections orthogonal to the X axis in a plurality of locations along the X axis of the evaluation-target data; on the basis of the gravitational centers of the cross sections and predetermined weights established in accordance with the cross-sectional surface areas, computes the gravitational center and weight of the evaluation-target data; and on the basis of the foregoing, computes the amount of crankshaft imbalance.

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