As people's demands for comfort, economy, and safety continue to increase, the variety of electronic products on automobiles is also increasing, and the failure rate of wire harnesses of increasingly complex wire harnesses is correspondingly increased. This requires improving the reliability and durability of the wiring harness. Many people are interested in the process and production of automotive wiring harnesses. Here is a brief description of the knowledge of automotive wiring harness technology and production. You only need to spend a few After a minute of reading, you can get a general idea.
After the two-dimensional product drawing of the automobile wiring harness came out, it is necessary to arrange the production process of the wire harness, and the process is inseparable for the service. Therefore, the author combines the production and process of the automobile wire harness to analyze together.
The first station for wire harness production is the open line process. The accuracy of the opening process is directly related to the entire production schedule. Once an error occurs, especially if the opening size is short, it will lead to rework of all the stations, which will take time and effort to affect production efficiency. Therefore, in the preparation of the opening process, it is necessary to reasonably determine the opening size and the size of the wire according to the requirements of the drawings.
The second station after the opening is the crimping process. Determine the crimping parameters according to the type of terminal required by the drawing, and make the crimping operation manual. For the special requirements, indicate and train the operator on the process documentation. For example, some wires need to pass through the sheath before they can be crimped. It needs to be pre-assembled and then returned from the pre-installed station and then crimped. Also, the puncture-type crimping uses a special crimping tool. The crimping method has good electrical contact properties.
Then there is the pre-installation process. Firstly, the pre-installation process operation manual should be compiled. In order to improve the assembly efficiency, the complicated wiring harness must be equipped with pre-installation stations. The reasonableness of the pre-installation process directly affects the efficiency of the total assembly. The technical level of the craftsman is high. If the pre-installed part of the assembly is too small or the assembled wire path is unreasonable, the workload of the total assembly personnel will be increased, and the speed of the assembly line will be slowed down. Therefore, the process personnel should often stay on site to summarize.
The final step is the final assembly process. It can be programmed according to the product development department's assembly platen, design tooling equipment, material box size and all the assembly sheath and accessory numbers are attached to the material box to improve assembly efficiency. Compile the assembly content and requirements of each station, balance the entire assembly station to prevent a situation where the workload is too large and pull down the entire assembly line speed. In order to achieve a work station balance, the craftsman must be familiar with each operation and measure the working hours on site, and adjust the assembly process at any time.
In addition, the wire harness process also includes the preparation of material consumption quota schedules, working hours calculations, worker training, etc., because the technical content is not high, these will not be elaborated. All in all, the electronic technology content and quality of automotive wiring harnesses in the car has gradually become an important indicator for evaluating the performance of automobiles. Automobile manufacturers should pay special attention to the choice of wire harnesses, and it is also necessary to understand the process and production of automobile wiring harnesses.