欧妇女乱妇女乱视频_蜜桃福利午夜精品一区_9999在线观看_少妇无码av无码专区在线观看 _天天操天天爽天天射_丰满少妇大力进入_日韩中文字幕a_国产美女网站在线观看_手机精品视频在线_亚洲精品蜜桃久久久久久_免费观看精品视频_日本黄网站色大片免费观看

With the continuous improvement of people's requirements for comfort, economy and safety, there are more and more types of electronic products in cars, and the car harness is becoming more and more complex, and the failure rate of the harness is also increasing accordingly. This requires improving the reliability and durability of the harness. Many people are interested in the process and production of automobile wire harness. Here is a brief introduction to the technology and production knowledge of automobile wire harness.

After the two-dimensional product drawing of automobile harness is released, the production process of harness needs to be arranged. This process serves production. Therefore, the production and technology of automobile wire harness are analyzed.

The first station of harness production is the line opening process. The accuracy of the start-up process is directly related to the entire production schedule. Once the error occurs, especially if the opening size is too short, it will lead to rework at all stations, which will take time and effort, and affect the production efficiency. Therefore, when preparing the opening process, the opening size and stripping size must be reasonably determined according to the drawing requirements.

The second station after the line is opened is the crimping process. The crimping parameters shall be determined according to the terminal type required by the drawing, and the crimping operation instructions shall be prepared. For special requirements, identification shall be made in the process documents, and the operators shall be trained. For example, some wires need to pass through the sheath before crimping. They need to pre-install wires, then return from the pre-installation station, and then crimp; There are also special crimping tools for piercing and crimping, with good electrical contact performance.

Then comes the pre-installation process. Prepare the operating instructions before installation. In order to improve the assembly efficiency, it is necessary to set up a complex harness pre-assembly station. The rationality of the pre-assembly process directly affects the assembly efficiency and reflects the technical level of the technicians. If there is less pre-assembly or the assembly route is unreasonable, it will increase the workload of the assembler and slow down the assembly line, so the process personnel should always stay at the site to summarize.

The last step is the assembly process. According to the specifications and dimensions of the assembly platen, tooling equipment and material box designed by the Product Development Department, the number of all assembly jackets and accessories can be pasted on the material box to improve the assembly efficiency. Prepare the assembly contents and requirements of each station, balance the whole assembly station, prevent excessive workload and reduce the speed of the whole assembly line. In order to achieve site balance, technicians must be familiar with each operation, calculate the site working time, and adjust the assembly process at any time.

In addition, harness technology also includes the preparation of material consumption quota table, man-hour calculation, worker training, etc. Because the technical content is not high, it will not be described in detail. In a word, the content and quality of electronic technology in automobile wiring harness has gradually become an important indicator to evaluate automobile performance. Automobile manufacturers should pay special attention to the selection of wire harness. It is also necessary to understand the process and production of automobile wire harness.