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

A technology of processing technology and special equipment, which is applied in the field of steel plate bending and torsion processing, can solve the problems of narrow internal space, difficult welding, and large processing errors of steel plate parts, and achieves simple structure, fast processing speed, and guaranteed forming quality. Effect

Active Publication Date: 2011-09-07
DALIAN BRANCH OF CHINA CONSTR EIGHTH ENG DIV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like Figure 1-3 The special equipment for steel plate bending and torsion shown is divided into a fixed side fixture 1 and a rotating side fixture 8. Both the fixed side fixture 1 and the rotating side fixture 8 are composed of an upper plate and a lower plate, and the upper plate and the lower plate are made of 20# I-beam I-beam, the bottom of the upper plate and the top of the lower plate have bolt holes 4, through which the bolt holes are connected by M18 bolts, the lower plate of the fixed side clamp is fixed on the supporting base 2, and one end of the lower plate of the rotating side clamp is fixed on the shaft hole. On the connecting plate 6, the connecting plate 6 is installed on the twisted support 7 through the rotating shaft core 5 with a diameter of 48mm, and the other end is a suspended pressure end, and the pressure end of the rotating side clamp has a baffle 3, that is, the steel plate is bent and twisted. Special unilateral fixed twisted shaft bending e...

Embodiment 2

[0028] Steel plate bending and torsion processing technology, the plate is placed in the single-sided fixed twisted shaft bending equipment, and the hydraulic equipment is used to press down at a single point, and the fixture rotates around the rotating shaft. During the process, the flame is combined with mechanical correction, and the flame temperature is 100°C lower than the normal correction temperature; after forming, continue to pressurize and let it stand for 2 to 3 days. After the deformation has no rebound tendency, slowly release the pressure and check the spatial position of the steel plate after forming , The positional relationship of the coordinate points of the steel plate to ensure that it meets the requirements of the detailed design drawings.

Embodiment 3

[0030] The processing technology of bending and torsion components is carried out in four steps: steel plate bending and torsion → pre-assembly → reassembly → welding and flaw detection. The specific process is as follows: Figure 4 Shown:

[0031] The first step is to bend and twist the steel plate: use special equipment to place the upper flange plate, the lower flange plate, the web on both sides and the longitudinal stiffener on the special equipment to make the space bent and twisted steel plate. First, place the plate on one side and fix it Twisted shaft bending equipment adopts hydraulic equipment to press down at a single point, and the fixture rotates around the rotating shaft. When pressing down, it is urgent and then slow, step by step, and carried out in stages; the bending process is corrected with flames and machinery, and the flame temperature is corrected higher than normal The temperature is 100°C lower; after forming, continue to pressurize and let it stand f...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B21D11/14B21D11/22B21D1/00B23P17/00B23K31/02
Inventor 周光毅毛立贤刘进贵仇春慧张强
Owner DALIAN BRANCH OF CHINA CONSTR EIGHTH ENG DIV CORP
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