Automobile manufacturers stamp steel coils into various sheet metal parts (such as five doors and one cover, fenders, roof, etc.) The parts are sent to the welding workshop for body assembly. The equipment used here is mainly welding torches, fixtures, and robots. With the development of industrial technology, more and more manual spot welding operations will be replaced by robots; the body is assembled It was sent to be painted, which is the gathering place for the core technology of an automobile factory, so the general painting needs to be sprayed at least three times, the first layer is mainly ED layer for anti-rust, and the other two layers are mainly for aesthetics ; After the painting is finished, go to the final assembly station. The final assembly is mainly to assemble various parts of the car on the body, such as engine gearbox suspension tires and so on. After the final assembly, the production of a car is basically over, but the car after the final assembly must go through some rigorous tests, and only the cars that pass the test can be finally sent to the hands of customers.

car manufacturing process

What is stamping? Stamping is a forming processing method that applies external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation to obtain workpieces (stamping parts) of required shape and size.

Speaking of stamping, let's talk about the main equipment stamping machines, molds and other transportation equipment. These two pieces of equipment are the most valuable in the stamping workshop, and now it is necessary to invest at least hundreds of millions in a stamping production line. Those with more technical content are mold making and mold repairing. Whoever masters these two skills will have no worries about food and clothing for that generation. Let's take a look at the pictures of these devices first.

The punching machine drives the flywheel through the motor, and through the clutch, the transmission gear drives the crank linkage mechanism to move the slider up and down, and drives the drawing die to form the steel plate. Stamping machinery press is one of the most important and commonly used equipment in the stamping process among the four major processes of automobile manufacturing. It mainly relies on the pressing energy of the press to act on the steel plate in the mold to form it and become the shell of the car body.

Performance parameters of each punching machine in the punching line

Mold, various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In a narrow sense, automobile molds are the general term for the molds that stamp all the stamping parts on the automobile body. Next, we will also provide a few pictures to let everyone have a more sensory understanding of automotive stamping dies.

Automotive Stamping Die

The green ones in the picture are the so-called automobile molds. During the production process, the mold and the stamping machine cooperate to stamp and form the steel plate, and different molds stamp out different automobile sheet metal parts. The main equipment has been briefly introduced, and now I will explain to you the main working process of the stamping workshop

Stamping workshop operation flow chart

Let’s follow the above picture step by step. First, the purchased steel plates are sent to the stamping production line to be cleaned by the washing machine, and then transported by the mechanical arm to the next station, which is the first station of stamping, for forming, and then sent to the next station. Trimming, followed by punching, and then edge folding, the previous operations are all automated, and the final receiving is done manually, because the stamped sheet metal parts need to be inspected and loaded. There are also five stamping machines in one stamping production line of an automobile factory.

X7 Stamping Products Automobile Sheet Metal Parts

A car is actually made up of many sheet metal parts. Everyone who is most familiar with it must know that there are four doors and two covers, as well as fenders, bottom panels, tail beams, etc., which are all produced by the stamping workshop through the above process. produced.

To put it simply, the stamping workshop is to load the rigid material into the stamping machine through different molds and cut it into different automobile sheet metal parts. This is the main work of the automobile stamping workshop. In fact, in order to ensure the normal production of sheet metal parts, there is still a lot of work to be done, such as equipment maintenance, mold maintenance, sheet metal repair, etc. These are not introduced, because these tasks are for the normal production of high-quality sheet metal piece of service.