Rolling forming process for top-convex and bottom-concave special-shaped plate and roller structure

Abstract

The invention relates to a rolling forming process for a top-convex and bottom-concave special-shaped plate. The special-shaped plate is formed by rolling a flat plate, a convex special-shaped structure is formed on the upper surface of the plate, and a concave structure is formed in the lower surface of the plate. The special-shaped plate is formed after the plate is rolled by a pair of rollers,wherein the upper roller has a groove matched with the special-shaped structure, the lower roller has a convex matched with the concave structure, and the top-convex and bottom-concave special-shapedplate is formed after the plate is rolled. With adoption of a cold finish rolling technique, flowing of metal can be better controlled in the rolling process, the shape and the size of the special-shaped section plate can be controlled more effectively, accordingly, no cutting or less cutting machining of the special-shaped plate can be realized, materials are saved, the cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of rolling, and in particular relates to a rolling forming process of a convex and concave special-shaped plate and a roll structure. Background technique [0002] Special-shaped plates are often used in the automotive industry and other fields. The main features are high forming precision, reduced welding links, and high production efficiency. Cutting, rolling, welding and other methods can be used to produce special-shaped cross-section plates. The rolling method saves metal materials, reduces additive manufacturing and subtractive manufacturing processes, and reduces costs. [0003] The most difficult point in the forming of special-shaped plates lies in the forming of special-shaped structures of plates. The traditional cold finish rolling technology is used for the rolling of equal-thickness plates and rings. The rolling of longitudinal ribs does not solve the problem of longitudinal rib size control ve...

AI Technical Summary

Problems solved by technology

[0003] The most difficult point in the forming of special-shaped plates lies in the forming of special-shaped structures of plates. The traditional cold finish rolling technology is used for the rolling of equal-thickness plates and rings. The rolling of longitudinal ribs does not solve the problem of longitudinal rib size control very well, so The forming of special-shaped plates needs to control the forming of special-shaped structures of plates by changing the roll structure, and there are few researches on the precision forming technology of special-shaped plates at home and abroad.

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