Whether it is the inspection of semi-finished products of the wire harness or the offline inspection and detection of the finished wire harness, it belongs to the end inspection after the processing is completed. The detection methods are relatively limited and the detection rate is relatively low. If the detection rate is increased, it is often necessary to increase investment in detection equipment, but the detection efficiency sometimes cannot meet the requirements of production takt. After the quality problem of the wire harness is detected, it is necessary to invest in the site, personnel and materials for repair. During the repair process, it may cause secondary damage. Quality defects such as wrong assembly and missing assembly of automobile wiring harnesses are often controlled based on the strategy of post-containment of quality risk points through the production process and end-end inspection quality control. The input of many resources cannot guarantee the complete avoidance of quality defects. If some hidden quality hazards that may occur during the manufacturing of the wiring harness and the final assembly of the main engine factory are taken into account in the wiring harness design stage, error-proofing technology is used in the product design stage and production process to avoid the hidden quality risks of the wiring harness in advance, and a small amount of resources are invested. The time point of quality control is advanced, and the effect will be relatively obvious. At the same time, it can also greatly reduce the manufacturing cost of the wire harness, improve the production efficiency of the wire harness and ensure the quality.
With the rapid development of automotive technology, the number of electronic and electrical components and functional components in automobiles continues to increase, the wiring harnesses connecting various electrical components are becoming more and more complex, and the number and volume of wiring harnesses are also rapidly increasing. The process design, manufacturing, process inspection and quality control of wire harnesses all bring great difficulties, which inevitably lead to various human manufacturing errors in each process of wire harness manufacturing, resulting in batch rework of semi-finished wire harnesses or finished wire harnesses Rework seriously affects the manufacturing efficiency of the wire harness and the improvement of product quality, resulting in waste of working hours and raw materials. Then the error-proofing technology is used in the wire harness manufacturing process, and the process error-proofing design and the tooling error-proofing design have become an effective means to avoid the occurrence of wire harness manufacturing errors.
