The processing of multi-wire semi-finished products includes ultrasonic welding or U-shaped terminal crimping. A common operation error is to take the wrong side of the semi-finished wire binding, resulting in welding errors. The single-line kanban number of the thread-binding semi-finished product combination must be indicated in the process error-proof design. The turnover box for storing the binding semi-finished product should be located and stored. There are turnover cards with identification, batch, and quantity in the turnover box. According to different projects, The turnover boxes can be distinguished by different colors (blue, grass green, orange).
The pre-assembly process of automobile wiring harness manufacturing includes two operation modes: pre-assembly in centralized areas according to order batches and product models and online pre-assembly on the assembly line. If necessary, a mixed application of the two pre-assembly modes will appear. Since there is basically no automated equipment operation in the pre-assembly process, it is a labor-intensive operation process. Therefore, the application of process error-proof design and tooling error-proof design in this process is the most common. At the same time, the quality of process error-proof design directly affects the assembly line. The final assembly efficiency and the quality of the finished wire harness.