New technology to meet the needs of modern stamping production (Figure)

In the contemporary automobile stamping production, various new stamping equipment, advanced mechanized systems, new processes, die and intelligent control technology are gradually adopted, which greatly improves the stamping production efficiency and finished product quality, and reduces the cost of mass production.

The modern automobile industry has the characteristics of large-scale production, small batch size, fast variety change, and multi-model production. The body panels are also characterized by large-scale and integrated features. These trends require the continuous flexing of stamping technology and equipment. With the development of automation, high-flexibility and high-efficiency automated stamping equipment is gradually replacing the traditional rigid production line and becoming the mainstream of world stamping production.

The following authors will introduce the technical progress and application of stamping equipment, mechanized systems, stamping process, die, intelligent control and so on.

Stamping equipment

For a long time, traditional stamping equipment has ensured the quality of stamping parts due to its stable production conditions, and the use of molds is relatively long-lasting, but the lack of flexibility is a significant defect of this production method. The application of integrated control technology and servo drive technology on the press brings more flexibility to the stamping production. The equipment of large multi-station presses and flexible stamping automatic lines is rewriting the history of stamping production.

1. Integrated control

In order to meet the flexible production requirements, all the control functions of the press should be integrated to achieve the menu management of the complete mold, including slider stroke adjustment, balancer air pressure adjustment, air cushion stroke adjustment and automatic control system. Parameter setting for each link. Fieldbus technology with on-site communication network, field device interconnection, interactive operation, decentralized function modules, and open functions is the development direction of press control technology, which has obvious promotion effect on automation.

The integration of the press control system enables all press and mold control functions through a single operating interface, including fault diagnosis, mold menu configuration, programmable limit switches and mold monitoring and adjustment, and maintenance of the equipment. It is more convenient and significantly increases the effective working time of the press.

At present, the large-scale press line for the manufacture of large-size car parts in China has reached the international advanced level (see Figure 1). It adopts multi-link precision optimization compensation technology, networked automatic mold rapid replacement technology, and vector AC tone. Speed ​​main drive technology and multi-point hydraulic overload protection unloading control technology, application of Ethernet network technology can be connected with production, real-time monitoring of equipment status, with remote communication and remote fault diagnosis, the whole line supports fast feeding system, can be produced every minute Large covers of 10 to 14 cars.

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