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

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

Active Publication Date: 2013-06-26
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 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

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

Embodiment 2

[0028] The steel plate bending and torsion processing technology, the plate is placed on a unilateral fixed twisted-pair shaft bending equipment, using hydraulic equipment to press down at a single point, and the fixture rotates around the rotating twisting shaft. When pressing down, the press is first rapid and then slowly, step by step, and proceed in stages; The process uses flame and mechanical correction, the flame temperature is 100℃ lower than the normal correction temperature; after forming, continue to press 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 compliance with the requirements of the deepening 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 of steel plate bending and twisting: using special equipment, put the upper flange plate, lower flange plate, both side webs and longitudinal stiffening plates on the special equipment to make the space bending and twisting steel plate. First, the plate is fixed on one side. Twisted-pair shaft bending equipment uses hydraulic equipment to press down at a single point, and the fixture rotates around the rotating twisting shaft. When pressing down, it is first rapid and then slowly, step by step, step by step; the bending process is corrected by flame and mechanical, and the flame temperature is corrected compared to normal. The temperature is lower than 100℃; after forming, continue to press and leave for 2 to 3 days. After...

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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 steel structure component processing, and particularly relates to steel plate bending and torsion processing. Background technique [0002] At present, the domestic construction steel structure is booming, the architectural style is complex and changeable, and the form is various. The use of large bending and torsion steel components is relatively small at present, but the prospects are very broad. For the processing and production of bending and torsion components, there is almost no domestic experience to learn from, especially for the section specifications: 450mm×2500mm×25mm×25mm, the column length is 30m~45m, the longest is 69.8m, and the bending and torsion angle is 20 o ~52 o Among them, the maximum bending and torsion amount is 1863mm, and each steel column has different degrees of bending and torsion. Because the structure is exposed, how to ensure that it has a large aspect ratio, narrow flange, and narrow wel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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