Analysis And Experimental Study On Frame Assembly Process For Heavy Commercial Vehicle

With the continuous development of China’s manufacturing industry, heavy commercial vehicle manufacturing industry is facing the dual challenges of joint venture and self-break. The heavy commercial vehicle manufacturing industry is developed by the use of the user. Commercial vehicle frame assembly is one of the most important vehicles, the role is to connect the cab assembly, engine assembly, transmission assembly and other major assembly, and load the whole weight of the key role. The frame assembly is often called "the backbone of our truck". The frame assembly manufacturing process according to the quality control elements mainly contains the following two parts, one is the frame assembly parameters, and it is divided into the size of engineering technology and modular assembly and positioning assembly technology. Two is the frame assembly connection strength, and is divided into the bolt connection strength and rivet connection strength. Through theoretical analysis and actual process test, the optimization of the existing frame assembly process is designed to improve the accuracy of the assembly process, improve the reliability of the frame, improve the reliability of the whole vehicle.In this paper, the design of the frame assembly problem is solved by means of the dimension engineering technology. The new model size design guarantee capability is solved by the dimension engineering. And it lays a theoretical foundation for the assembly and assembly of modular assembly and positioning.In this paper, the scheme of the assembly of the assembly is optimized by the assembly of the frame assembly. The assembly technology is mainly used in the key points of the modular beam and assembly. In this paper, the assembly technology is applied to optimize the assembly fixture. Secondly, optimize the assembly process of the frame assembly.Through the research of the torque control technology, the application of the torque control technology in the frame assembly is improved. Through the engineering practice, the method of the frame torque control is explored, and the method of improving the small batch, the key point and the large quantity torque control is improved. By optimizing the riveting pressure and other methods, the problem of the formation of small, low connection strength, gap and indentation.Through the above methods and engineering practice, the paper finally draws the conclusion that the assembly process optimization of the frame assembly process. The size engineering technology is the basic technology of the frame assembly process optimization. We can foresee the assembly problem of the new model and the advantages of the existing models. Modular assembly shall be used to ensure that the frame assembly is used to ensure the qualified rate of the frame assembly. The positioning and assembly requires the selection of parts manufacturing precision and positioning hole. Torque control technology is mainly used to study the adaptability of various tools. Riveting technology in the study, the rivet forming process must be the pressure control and the head of the rivet head and the hole tearing strength of the impact.