Steel plate crankle processing technology and special apparatus thereof as well as crankle component processing technology

Abstract

The invention belongs to the field of steel-structure component processing, and in particular relates to steel plate crankle processing. According to the steel plate crankle processing technology, a plate is arranged in a single-side fixed dual-hinge-shaft bending apparatus; a hydraulic apparatus performs single-point pushing; a fixture rotates around a rotary hinge shaft; the pushing is quick atfirst and then slow later and performed gradually by stages; the bending process is corrected by flame in combination with machinery, wherein the flame temperature is 100 DEG C lower than the normal correction temperature; and after the forming, the component is continuously pressurized and laid for 2-3 days. The steel component processing technology provided by the invention is different from the common steel structure processing technology that the coordinate points are controlled according to the elevation section for blanking, and the hydraulic apparatus cooperates with a special apparatus and the steel plate after blanking is subjected to single-point bend forming, thereby guaranteeing the forming quality of the crankled component and realizing high processing speed.

Description

technical field [0001] The invention belongs to the field of processing of steel structural components, in particular to bending and torsion processing of steel plates. Background technique [0002] At present, the steel structure used in domestic construction is developing vigorously, with complex and changeable architectural styles and various forms. The use of large bending and torsion steel members is relatively rare at present, but the prospect is very broad. For the processing and manufacture of bending and torsion components, there is almost no domestic experience that can be used for reference, especially for cross-sectional specifications: 450mm×2500mm×25mm×25mm, column length is 30m to 45m meters, the longest is 69.8m, and the bending and torsion angle is 20 o ~52 o Between the two-way bending and torsion members, the maximum amount of bending and torsion is 1863mm, and each steel column has different bending and torsion degrees. Due to the exposed structure, how...

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Problems solved by technology

The major technical problems faced are: among them, the bending and torsion processing of steel plates is relatively difficult, and the bending and forming processing errors of steel plate parts are large; the processing of components with different bending and torsion degrees is not universal; It is difficult to guarantee the welding quality of internal stiffeners under the condition of small operating space, especially the large number of longitudinal and transverse partitions of large bending and torsion box-shaped steel columns, and the internal space is narrow, the requirements for weld quality are high, and welding is difficult. It makes the production and processing of bending and torsion members difficult, and it is difficult to meet the design requirements

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