Thin plate covering part reinforcing rib forming die and method

Abstract

The invention relates to a thin plate covering part reinforcing rib forming die and method. The thin plate covering part reinforcing rib forming die comprises a female die and a male die. The female die is located above the male die. According to the structure of the female die, polyurethane is embedded into the plane portion of a female die body, and a large forming fillet is adopted in the forming portion of the female die body. The male die is ejected from bottom to top. According to the thin plate covering part reinforcing rib forming die and method, the fillet of the female die of a reinforcing rib is enlarged, so that enough materials flow in during forming, the male die is reversely ejected to form the reinforcing rib after a part is pressed, and a polyurethane material is embedded into the contact surface part of the female die and the part to increase the surface roughness, increase the friction coefficient, increase the friction force and reduce the relative flow of the material, so that the required forming height is achieved, the phenomena of cracking and the like caused by insufficient materials participating in deformation in the forming process of small formed fillets are avoided, and deformation and warping of the part are reduced.

Description

technical field [0001] The invention belongs to the technical field of rib forming, and in particular relates to a rib forming mold and a forming method of a thin plate covering part. Background technique [0002] Products with ribs involve covering parts such as fuel tanks, air filters, tool boxes, and fenders. There are many types of products and large batches. The materials are 2mm steel plates or 3mm aluminum plates. The strength and rigidity of the parts are improved through the structural design of the ribs. And the bending resistance, while the universal stiffener forming process uses a fixed and universal formwork, and the purpose of forming ribs of different lengths is achieved by changing the punch and die of different lengths during use. When designing the universal stiffener mold, the purpose is to When the rib is formed, a large blank holder force and a small die fillet (R=1) are adopted to prevent the relative flow of the material, which is completely realized ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a forming mold and forming method for reinforcing ribs of thin-plate covering parts. The technical problem to be solved is: to solve the long-standing typical problems in the forming process of reinforcing ribs of thin-plate covering parts, and to meet the product design size under the premise of ensuring product quality Requirements while eliminating product quality hazards

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