What is the complete technological process of producing a car? What production equipment is needed?

The complete production process of a car includes four main production processes: 1, stamping 2, welding 3, painting 4 and final assembly.

Stamping process: stamping is the first step of all processes, but it is relatively simple to operate. Firstly, the steel plate is cut into appropriate sizes on the cutting machine, and then the initial cutting is carried out on the punching machine. At this time, only drilling and trimming are generally carried out to facilitate the next operation. After simple punching and trimming, it will enter the real stamping process.

Stamping is realized by stamping machine tools and dies, and each workpiece has a die. As long as all kinds of dies are installed on the punching machine, all kinds of workpieces can be punched. The role of mold is very great, and the quality of mold directly determines the quality of workpiece. Most of each working procedure is stamping first, then punching, trimming, flanging and other working procedures, and finally it will become the required workpiece.

Welding technology: Spot welding is the most widely used technology in automobile body manufacturing. When two car body parts are welded, their edges are welded at a distance of 50- 100 mm, so that the two parts form a discontinuous multipoint connection. It usually takes thousands of welds to weld the whole car body.

The strength of solder joints is very high, and each solder joint can bear a tensile force of 5kN. Even if the steel plate is torn, the solder joints cannot be separated. In addition, a large number of car bodies are riveted.

Painting process: Painting plays two important roles in automobile manufacturing, the first is to prevent automobile corrosion, and the second is to add aesthetic feeling to automobiles. The painting process is complicated and the technical requirements are high.

There are mainly the following processes: pretreatment and primer before painting, painting process, drying process, etc. The whole process needs a lot of chemical reagent treatment and fine process parameter control, and the requirements for paint materials and various processing equipment are very high, so the coating process is generally the technical secret of each company.

Assembly technology: Assembly is the process of assembling the body, engine, transmission, instrument panel, lights, doors and other parts that make up the whole vehicle to produce the whole vehicle. In modern automobile assembly, with the help of computers and manipulators. However, some processes are difficult for manipulators to operate, such as dashboard and interior installation, and the most labor-consuming place is interior assembly.

The assembly workshop mainly consists of four modules, namely, the front wall assembly module, the instrument panel assembly module, the lamp assembly module and the chassis assembly module. After all the modules are assembled and all the components are installed, the whole vehicle can be off the assembly line after inspection and adjustment such as wheel positioning and vehicle light field detection.