Assembly workability evaluation calculation device and assembly workability evaluation method

An assembling workability evaluation computing apparatus that evaluates assemblability and workability of assembling work which sequentially assembles a plurality of parts constituting an assembly, the assembling workability evaluation computing apparatus comprising:

• an information obtaining unit that extracts information on attributes of each of a plurality of parts, locations of the parts, and adjoining relations with other parts from a 3D CAD model obtained from CAD;
• a parts sorting and distinctive shape detecting unit that sorts parts by part type from obtained 3D CAD model information;
• a unit that represents relations between parts in an assembly graph in which nodes denote parts and edges denote adjoining relations from information relevant to adjoining relations between parts in 3D CAD model information;
• a unit that creates disassemblable directions, based on the assembly graph, creates disassembling directions and a disassembling sequence, and, by reversing the disassembling sequence and directions, derives an assembling sequence and assembling directions;
• a unit that computes deficiency points of a part by multiplying a basic deficiency point Ex for each part assembling action by a compensatory coefficient α and computes an index indicating a quality of easiness of assembling a part into an assembly by subtracting the sum of deficiency points per part from a reference score (a perfect score of 100);
• a unit that creates a plurality of virtual worker positions, postures, and viewpoints according to an assembling sequence;
• a unit that evaluates workability in the created worker positions, postures, and viewpoints;
• and
• an overall evaluation unit that computes an evaluation value per part by the index of easiness of assembling the part and a total evaluation value of assembly workability and outputs results.