A roll-forming method of an elliptical cylinder joint

Abstract

The invention discloses a rolling and forming method of an ellipse cylindrical shell section. The rolling and forming method of the ellipse cylindrical shell section adopts a rolling and forming device for the ellipse cylindrical shell section, and concretely comprise the following steps of (1) setting the front end of a plate blank as an ellipse vertex on an ellipse column cross section, and obtaining a reference end point, wherein the length of the plate blank is the total arc length of an ellipse curve; (2) calculating the feed amount of the plate blank; (3) sending the feed amount of the plate blank into a computer, acquiring the curvature radius R of a point, corresponding to the feed amount, on the ellipse curve through the computer according to the input plate blank feed amount, andcalculating the press amount h of an upper roller according to the curvature radius R; and (4) according to the press amount h of the upper roller obtained through the step (3), enabling the computerto control a vertical adjustment mechanism to move, so that the rolling of the ellipse cylindrical shell section is accomplished. The rolling and forming method of the ellipse cylindrical shell section provided by the invention solves the problem that the time and the materials are wasted when the ellipse cylindrical shell section is manufactured by adopting a punch forming manner at present.

Description

technical field [0001] The invention belongs to the technical field of equipment manufacturing, and relates to a roll forming method of an elliptical cylinder joint. Background technique [0002] Special-shaped pressure vessels are mostly used in vehicle-mounted mobile containers and boilers with low pressure. The elliptical cylinder container is mainly composed of an elliptical cylinder body and left and two heads. The ellipse cylinder body is composed of several ellipse cylinder sections. The ellipse cylinder section is larger in size. 2000~3000mm. [0003] The difference between the elliptical cylinder section and the cylindrical cylinder section: [0004] In terms of shape, the cross-section of the vertical centerline of the elliptical cylinder section is elliptical, and the curvature of each point on the cross-section changes; [0005] The section perpendicular to the center line of the latter is circular, and the curvature of each point on the section is the same; i...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a roll-forming method for elliptical cylinder joints, which solves the time-consuming and material-consuming problems existing in the production of elliptical cylinder joints by stamping and forming.

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