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H-girder welding deformation control device

A control device and welding deformation technology, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of welding angle deformation of H-shaped beams, and achieve the effect of reducing residual stress, avoiding influence, and reasonable welding sequence.

Active Publication Date: 2015-03-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods do not currently have methods and devices for welding angle deformation and torsional deformation of H-shaped girders.

Method used

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  • H-girder welding deformation control device
  • H-girder welding deformation control device
  • H-girder welding deformation control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] An H-shaped beam welding deformation control device, its structure is as follows figure 1 As shown, it mainly includes an upper pressure plate 2 connected to the upper surface of the upper wing plate 3 , a left pressure plate 4 and a right pressure plate 12 symmetrically connected to both sides of the web 13 , and a lower pressure plate 8 connected to the lower surface of the lower wing plate 7 . The left pressure plate 4 and the right pressure plate 12 are respectively connected with the upper pressure plate 2 and the lower pressure plate 8 through the upper left screw 1, the lower left screw 6, the upper right screw 14 and the lower right screw 10, thereby controlling the position of the upper wing plate 3 and the lower wing plate 7 during welding No angular deformation will occur, and the inner sides of the left pressing plate 4 and the right pressing plate 12 are arranged on the left and right sides of the web 13 . A left welding process hole 5 and a right welding p...

Embodiment 2

[0055] The above-mentioned device is used to control the welding deformation of the H-shaped beam. Web size: length 1200mm, height 144mm, 6.0mm. Welding method: manual welding, no virtual welding exists. Under the action of the deformation control device, the geometric dimensions of the H-shaped girder are basically unchanged.

Embodiment 3

[0057] H-beam-QSTE700 welding deformation control

[0058] The above-mentioned device is used to control the welding deformation of the H-shaped beam. Web size: length 400mm, height 76mm, 4.0mm. Welding method: manual welding, no virtual welding exists. Under the action of the deformation control device, the welding deformation of the H-shaped beam composed of high-strength steel plates of 700 MPa is well controlled.

[0059] The patented method and device of the present invention can be used to realize the control of the H-shaped beam in the welding deformation process, ensure the size and assembly accuracy of the H-shaped beam after welding, reduce unnecessary post-weld straightening procedures, and can be widely used in similar structures. In welding deformation control, it has important reference and application value for welding auxiliary positioning and precision assurance of large structures.

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Abstract

The invention relates to an H-girder welding deformation control device. The H-girder welding deformation control device comprises an upper press plate connected to the upper surface of an upper wing plate, a left press plate, a right press plate and a lower press plate connected to the lower surface of a lower wing plate, wherein the left press plate and the right press plate are symmetrically connected to two sides of a web plate, are connected with the upper press plate and the lower press plate through connecting screws and control the positions of the upper wing plate and the lower wing plate not to produce angle deformation, and the inner sides of the left press plate and the right press plate abut against the left side face and the right side face of the web plate. Compared with the prior art, the H-girder welding deformation control device achieves accurate size after workpiece deformation in the welding process, ensures assembly tolerance of a workpiece, decreases follow-up shape correction work procedures, reduces heat source input and avoids the influence on parent material performance.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, in particular to an H-shaped beam welding deformation control device. Background technique [0002] The modern automobile industry has higher and higher requirements for light weight, safety, exhaust emission, cost control and fuel economy, which drives the automobile industry to adopt high-strength steel plates and some high-strength lightweight materials. The car frame is an important load-bearing component on the car. According to statistics, the quality of the car body accounts for about 40%-60% of the quality of the whole vehicle. The lightweight structure is of great significance to the energy saving and environmental protection of the car. As the main component of the car frame, the H-shaped beam is used to replace the traditional steel plate with high-strength steel plate to reduce the weight of the frame. The H type is mainly welded by the web and the wing plate. In thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/00
CPCB23K31/003
Inventor 但文蛟刁可山张卫刚刘飞缑瑞宾
Owner SHANGHAI JIAO TONG UNIV
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