Automobile covering part springback treatment mold structure

Abstract

The invention discloses an automobile covering part springback treatment mold structure which comprises a convex mold and a concave mold, wherein the convex mold and the concave mold are laminated forpart forming; the convex mold comprises a convex mold body, a first convex mold wall and a second convex mold wall; the concave mold comprises a concave mold body, a first concave mold wall and a second concave mold wall; the first concave mold wall corresponds to the first convex mold wall; the second concave mold wall corresponds to the second convex mold wall and is obliquely arranged; and theclearance distance between the first convex mold wall and the first concave mold wall is greater than that between the second convex mold wall and the second concave mold wall. The automobile covering part springback treatment mold structure has the following beneficial effects: the clearance distance between the corresponding springback areas of the convex mold and the concave mold is reduced; the springback area of a part is partially cured and formed; the purpose of reducing the part springback is fulfilled; the structure is simple; the part quality is guaranteed; and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of springback treatment of automobile cover parts, in particular to a mold structure for springback treatment of automobile cover parts. Background technique [0002] During the molding process of automobile panels, there are both plastic deformation and elastic deformation. After unloading, due to the recovery of elastic deformation, springback occurs. In engineering practice, there are generally two ways to solve the springback problem of automobile panels. One is to control the process parameters, such as setting appropriate drawbeads and blank holder forces. This method emphasizes that by reducing the amount of springback To improve the precision of molded parts, another method is the mold compensation method, that is, the mold surface is pre-corrected under the premise of considering the amount of springback, but the draft angle of the existing parts is small, and there is sidewall springback in one-time molding ...

AI Technical Summary

Problems solved by technology

In engineering practice, there are generally two ways to solve the springback problem of automobile panels. One is to control the process parameters, such as setting appropriate drawbeads and blank holder forces. This method emphasizes reducing the amount of springback To improve the precision of molded parts, another method is the mold compensation method, that is, the mold surface is pre-corrected under the premise of considering the amount of springback, but the draft angle of the existing parts is small, and there is sidewall springback in one-time molding , some products still have defects that cannot meet the quality requirements

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