Indirect thermal forming stamping device

Abstract

The invention discloses an indirect thermal forming stamping device which comprises a first plate, wherein four first hydraulic cylinders are fixedly connected to the top of the first plate, a second plate is fixedly connected to the top ends of output shafts of the four first hydraulic cylinders, first U-shaped positioning plates are fixedly connected to the two sides of the outer wall of the second plate correspondingly, and the top of the first U-shaped positioning plate is fixedly connected with a first cold liquid one-way device. When a high-temperature plate is subjected to die pressing quenching through an upper die and a lower die, heat on the high-temperature plate is absorbed and stored through cooling liquid originally injected into the die, the die is preheated in advance before the high-temperature plate and the die in the next stage are removed, and the temperature difference between the die and the high-temperature plate is reduced, so that the die-pressing quenching function is achieved, wasted heat energy is utilized, the temperature difference between the die and the plate is prevented from being too large, and the die-pressing quenching quality is improved.

Description

technical field [0001] The invention relates to the technical field of thermoforming, in particular to an indirect thermoforming stamping device. Background technique [0002] The indirect thermoforming process is generally followed by decoiling, cold forming, austenitization, press quenching, and finally surface treatment. The indirect thermoforming process is often used in the field of automobile manufacturing to reduce the total mass of the car body and the number of parts. Usually used The material is aluminum alloy. There are many factors affecting the stamping quenching parts, such as the shape of the blank, heating temperature, holding time in the furnace, the temperature at which the steel plate starts stamping, stamping speed, holding time, cooling rate and other factors will affect the formability and forming quality of the stamping quenching parts. direct impact. [0003] At present, when the larger integrated auto parts on the market are molded and quenched by ...

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Problems solved by technology

[0003] At present, when the larger integrated auto parts on the market are molded and quenched by the indirect thermoforming process, since the upper mold is directly above the lower mold, it is not easy to The heavy high-temperature plate moves between the two molds. At the same time, after the high-temperature plate is molded and quenched, the temperature of the mold and plate parts will become lower, resulting in a larger temperature difference when the next high-temperature plate contacts the low-temperature mold. In short, the quality will be reduced, and the high-temperature coolant during quenching cannot be used. Therefore, there is an urgent need for a tool that can reduce the temperature difference between the high-temperature plate and the low-temperature mold, the high-temperature coolant during quenching can be used, and it is easy to move and place the plate. An indirect thermoforming stamping device

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