Multi-working-condition consideration bearing hub assembly algorithm based on visual inspection

• Main Authors: HOU YUHUI, CHEN AIBIN, CHEN KAI, YANG LIN, MA HONGJUN
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a multi-working-condition consideration bearing hub assembly algorithm based on visual inspection, which comprises the following steps of: 1, translating a telescopic cross truss to the upper end of a bearing characteristic hole, and establishing a plane coordinate system with the same attitude relative to a target object through nine-point calibration; 2, performing a cross calibration algorithm; step 3, carrying out a linear correction algorithm; 4, performing a concentric deviation calibration algorithm; and step 5, performing a multi-circular-hole screening algorithm. According to the algorithm, the assembly errors with large influence in the assembly process are comprehensively considered, detection and calculation of multiple assembly errors are achieved in the mode of visual positioning of multiple sets of industrial cameras, and therefore a reference scheme is provided for the assembly equipment to detect the accurate tail end position deviation and improve the assembly precisi