A device for unfolding and straightening arc sections of thin-walled cylindrical parts with outer transverse ribs

Abstract

The invention belongs to the technical field of compound forming of metal profiles, and in particular relates to a device for unfolding and straightening the arc section of a thin-walled cylindrical part with outer transverse ribs. The straightening roller system of the present invention includes 12 straightening rollers; Straight rollers and two sets of pinch roller adjustment devices form a pinch roller system, and each set of pinch roller adjustment devices is composed of a screw, a nut, two half-ring hoops, a rectangular slider, a load-bearing frame, an air cylinder and a pinch roller frame. Composition: 3 straightening rollers form a pre-expanding roll system; 3 straightening rolls form a biting angle adjustment roll system; 7 straightening rolls form a seven-roller straightening roll system. On the basis of absorbing the advantages of the traditional multi-roller straightening equipment, the present invention improves and innovates the traditional straightening equipment, so that it can meet the needs of straightening the thin-walled cylindrical parts with outer transverse ribs, and can realize It has multiple functions such as clamping and feeding of arc section blanks, pre-expanding, biting angle adjustment, continuous unfolding and straightening, etc., with small footprint, low investment and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of compound forming of metal profiles, and in particular relates to a device for unfolding and straightening arc sections of thin-walled cylindrical parts with outer transverse ribs. Background technique [0002] In modern high-end manufacturing fields such as automobiles, ships, rail transit, and aerospace, high-strength, high-toughness thin-walled aluminum alloy sheets are widely used. In order to meet the performance requirements of high strength, good rigidity, and light weight of components, high-strength, high-toughness thin-walled aluminum alloy plates usually need to be fixed with reinforcing ribs. At present, there are mainly two methods of fixing high-strength and high-toughness thin-walled aluminum alloy plates and ribs, welding and riveting, which inevitably bring about problems such as heavy welding or riveting workload, overall weight gain, and low assembly efficiency. The overall forming tech...

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Problems solved by technology

[0013] The purpose of the present invention is to make use of the advantages of the prior art that it is easier to produce large-diameter, high-precision thin-walled cylindrical parts with outer transverse ribs, and utilize the advantages of the arc section of a thin-walled cylindrical part with outer transverse ribs proposed by the present invention. Unfolding and straightening equipment, combined with an integral forming method of a wide-width high-rib thin-walled metal wall plate and a method for unfolding and straightening the arc section of a thin-walled cylindrical part with outer transverse ribs, can overcome the existing There are many difficulties in the overall forming of wide-width, high-rib and thin-walled metal panels with existing technologies, and solve the production problems of "wide-width, high-rib and thin-walled metal panels" in integral forming

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