Automotive Wiring Harness Production Process

With the continuous improvement of people's requirements for comfort, economy and safety, the types of electronic products on automobiles are also increasing, the automotive wiring harness is becoming more and more complex, and the failure rate of wiring harness is also increasing accordingly. This requires improving the reliability and durability of the wiring harness. Many people are interested in the process and production of the automotive wiring harness. Here is a brief description of the process and production of the automotive wiring harness. You only need to spend a few minutes reading to get a general understanding. After the automotive wiring harness two-dimensional product drawings come out, it is necessary to arrange the production process of the wiring harness. The process serves the production and the two are inseparable. Therefore, the author combines the production and process of the automotive wiring harness together.

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The first station of wire harness production is the wire opening process. The accuracy of the opening process is directly related to the entire production schedule, once the error occurs, especially the opening size is too short, it will lead to the rework of all stations, which is time-consuming and laborious and affects the production efficiency. Therefore, in the preparation of the wire opening process, the wire opening size and stripping size must be reasonably determined according to the requirements of the drawings. The second station after wire opening is the crimping process. The crimping parameters shall be determined according to the terminal type required in the drawing, and the crimping operation instructions shall be prepared. For special requirements, the process documents shall be indicated and the operators shall be trained. For example, some wires need to pass through the sheath before crimping, and they need to be pre-assembled and returned from the pre-assembly station before crimping; there is also a special crimping tool for piercing crimping, which has good electrical contact performance. The next step is the pre-assembly process. First of all, the pre-assembly process operation instructions should be prepared. In order to improve the efficiency of final assembly, pre-assembly stations should be set for complex wiring harnesses. Whether the pre-assembly process is reasonable or not directly affects the efficiency of final assembly and also reflects the technical level of a technician. If the pre-assembly part is assembled too little or the assembly wire path is unreasonable, it will increase the workload of the general assembly personnel and slow down the speed of the assembly line, so the process personnel should often stay on site and constantly summarize. The final step is the final assembly process. Be able to edit the assembly platen designed by the product development department, design the specifications and dimensions of tooling equipment and material boxes, and paste the numbers of all assembly sheaths and accessories on the material boxes to improve the assembly efficiency. Compile the assembly content and requirements of each station, balance the whole assembly station to prevent the situation that the workload is too large and the speed of the whole assembly line is pulled down. To achieve station balance, technicians must be familiar with each operation and calculate the working hours on site, and adjust the assembly process at any time. In addition, the wiring harness process also includes the preparation of material consumption quota list, man-hour calculation, worker training, etc., because the technical content value is not high, these will not be detailed. In a word, the electronic technology content and quality of automotive wiring harness in the car have gradually become an important index to evaluate the performance of the car. Automobile manufacturers should pay special attention to the selection of wiring harness, and it is also necessary to understand the process and production of automobile wiring harness.

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