Cold-heat-integrally-acting forming system and method for complex curvature plate

Abstract

The invention belongs to the technical field of shipbuilding and particularly relates to a cold-heat-integrally-acting forming system for a complex curvature plate. The system comprises multiple loading systems which are of the same structure and adjustable in position. Each loading system comprises an upper loading device, a first heat loading element and a first water spray element which are arranged above the plate. Each first heat loading element and each first water spray element are arranged on the two sides of the corresponding upper loading device. Lower loading devices of the same structure as and symmetrical with the upper loading devices, second heat loading elements of the same structure as and symmetrical with the first heat loading elements and second water spray elements of the same structure as and symmetrical with the first water spray elements are arranged in the corresponding positions below the plate. The elements are matched for processing the plate. The invention further discloses a forming method for the complex curvature plate. By the adoption of the forming system and method, the forming precision and processing efficiency of the complex curvature plate can be improved, the adverse effect on the plate material of processing is lowered, the cost is saved, the work intensity of staff is lowered, and the forming system and method are especially suitable for automatic forming of the large curvature plate in a complex shape.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and more specifically relates to a complex curvature plate forming system and forming method with integrated cooling and heating functions. Background technique [0002] Due to the single-product order-based production method of shipbuilding and the structural characteristics of the two-way curvature plate itself, the forming and processing methods of the two-way curvature plate of the ship are different from the die-stamping batch production method of large-volume film plates such as automobiles. molding method. At present, the forming methods for ship curvature plates in the prior art mainly include linear heating method, cylindrical rolling method and multi-point bending method, etc. [0003] The so-called linear heating method uses a linear heat source such as flame or high-frequency induction to locally heat the plate, and uses the principle of local thermal expansion and contraction t...

AI Technical Summary

Problems solved by technology

However, the linear heating method still has the following defects and deficiencies: (1) Due to the relationship between temperature and material, the actual processing temperature needs to be controlled within a certain range, and the forming processing efficiency under large curvature and thick plate conditions will be affected ; (2) For twisted plates with different in-plane and in-plane strains at different positions, the wire heating method itself is also difficult to meet the forming processing requirements

[0004] For cylindrical roll pressing, it is obvious that only one-way curvature shapes can be processed, and two-way curvature cannot be formed; while bending processing methods such as multi-point cold pressing are completely dependent on the action of force, applying force and applying force to the processing plate to be formed The scope is very large, not only to overcome the problem of rebound, but also to increase the overall volume and cost of equipment

In addition, regardless of cold processing or hot processing in the above methods, manual work or manual control based on experience still dominates at present, and there are corresponding defects such as difficulty in quality assurance and low processing efficiency.

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