Analysis of Automotive Engine Assembly Processes and the Application of Assembly Line Technologies

　　In the development of the automotive manufacturing industry, engines and transmissions are core components of the production process. During manufacturing, the assembly stage is a critical factor in ensuring the engine’s proper operation. At present, both engine and transmission assembly rely on specialized online systems and tailored technologies. As this paper demonstrates, engine assembly is primarily carried out on dedicated assembly lines. Key areas for research include addressing temporary parts‑storage challenges and optimizing assembly routing. Meanwhile, the implementation of automated transmission assembly requires the integration of real-time process inspection, intelligent robotics, bus‑based control, and information‑management technologies. Furthermore, the design of assembly lines and the deployment of these technologies must be informed by practical process analysis to fully realize the benefits of automated assembly.

　　If the assembly of the transmission and engine is automated, it will not only enhance assembly efficiency but also enable timely identification of issues and potential risks during the process, based on component specifications and assembly procedures. Technicians must gain a thorough understanding of typical assembly techniques and line‑operation processes, and further validate the effectiveness of automated assembly through modeling and data analysis, thereby ensuring that the automated assembly of engines and transmissions in automotive manufacturing meets the intended performance requirements.

　　During the operation of an engine assembly line, workstations are typically numbered according to a standardized sequence. The line’s internal equipment includes components such as the engine block, oil filter, wiring harness, water pump assembly, exhaust pipe, water pump unit, alternator, starter, ECU, electric pump, turbocharger, heat shield, inlet and outlet oil lines, and brakes. In addition, a range of auxiliary components—such as the fan pulley bracket, flywheel, fan belt, fan, flywheel housing, and rear oil seal—are also incorporated. All assembly operations must be performed promptly and accurately in accordance with the established workflow and operational design specifications.

　　During the temporary storage of parts on site, it is essential to arrange similar components in accordance with the basic principles of part‑classification and layout. However, since the overall layout area may shift over time due to ongoing operations, the placement of parts must be dynamically optimized to reflect current conditions. Furthermore, appropriate controls should be implemented to differentiate between areas designated for short‑term and long‑term storage. The stacking configuration of parts directly impacts assembly efficiency; therefore, it is crucial to plan both the storage zones and the stacking arrangements effectively, ensuring that the necessary components are readily accessible during actual line operations to facilitate smooth assembly.