High-tension board forming device

Abstract

The invention discloses a high-tension board forming device. The high-tension board forming device is characterized by comprising an upper die base, an upper die pressing plate, an upper die forming punch pin, a lower die forming punch pin, a lower die base and a lower die pressing plate, wherein the upper die pressing plate is connected with the upper die base, the upper die forming punch pin is arranged on the two sides of the upper die pressing plate, the lower die pressing plate is connected with the lower die base, the lower die forming punch pin is arranged in the middle of the lower die pressing plate, two outer side walls of the lower die forming punch pin are respectively provided with at least two convex hulls, and two inner side walls of the upper die forming punch pin are provided with grooves corresponding to the convex hulls. According to the high-tension board forming device, due to the convex hull structure, in the bending process, interior molecules of a plate flow along the outer walls of the convex hulls to have plastic deformation, the increased convex hulls can absorb materials accumulated in the bending process, the tension of the plate located at the bending position is dispersed, and springback of the plate is reduced; meanwhile, in the bending process, the bending pressure is increased due to the arrangement of the lower die pressing plate and a balance weight, and the situation that the plate wrinkles in the bending process is reduced.

Description

technical field [0001] The invention relates to forming equipment for automobile parts, in particular to cold stamping equipment, in particular to a high tension plate forming device. Background technique [0002] The important development direction of modern automobile structure, performance and technology is to reduce weight, save energy, reduce emission and improve safety. There is a linear relationship between the mass of a car and its energy consumption. According to statistics, every 1% reduction in vehicle quality can reduce fuel consumption by 0.6% to 1.0%. Energy consumption is closely related to exhaust emissions. Therefore, the lightweight of automobiles is of great significance to energy saving and environmental protection. In order to meet the needs of modern automobile production, sheet metal suppliers have developed high-tensile steel sheets with good formability and high strength. [0003] High-tensile steel sheets are obtained by adding solid solution st...

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Problems solved by technology

[0007] 2. The above-mentioned forming die is essentially a one-time drawing process, and its drawing force is small. For high-tension plates with a thickness of more than 1.5mm, the drawing effect is poor and the material has a large amount of springback

[0008] 3. In actual production, the parts of automobiles are often irregular in shape, rarely cuboid or cube. The outer surface of the parts is generally a complex curved surface, and the width of the parts is different. The above-mentioned step surface is not suitable for different widths. Parts production, because there is no space for the step surface in the narrow part; in addition, the plate formed by the step surface needs to be removed through subsequent shaping, and for the longer part, the formed step surface is difficult to shape

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