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Improved semiautomatic flame cutting machine

A flame cutting machine, semi-automatic technology, applied in gas flame welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of long cycle and high cost, and achieve the effect of light use, cost reduction and reliable use

Inactive Publication Date: 2010-09-08
WUHAN YIYE STEEL STRUCTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the manufacturing process of steel box girder, according to the design and specification requirements, when two steel plates are butted, there is a difference in plate thickness. In order to prevent the stress from changing greatly and causing the stress to be too concentrated, it is necessary to open a transition groove on the thick plate , the minimum slope length of this project is 50mm, the maximum value is 272mm, and the plate thickness difference is 10-34mm. The traditional processing technology is that when the transition groove slope length is greater than 80mm, it needs to be machined. The traditional processing technology has a long cycle , high cost, and there are many links such as secondary return to the factory for processing. Therefore, in the case of an urgent construction period and high quality requirements, from the perspective of cost reduction, it is necessary to take improved measures for traditional groove processing methods to reduce operations. strength, improving overall efficiency

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: Improved semi-automatic flame cutting machine

[0019] The structure of the cutting machine is as follows Figure 1 to Figure 3 Shown: a pair of gas belt 1, an extended gun head 2, a semi-automatic flame cutting machine 4, a 603.6# imported cutting nozzle 5, 25kg counterweight 6, oxygen meter 9, propane meter, and supporting power supply and other components composition. Wherein: the liquid oxygen tank 8 is connected with the oxygen meter 9, the oxygen meter is connected with the semi-automatic flame cutting machine 4 by the gas belt 1, and the semi-automatic flame cutting machine 4 is connected with the extended gun head 2 by the gas belt 1. The semi-automatic flame cutting machine is connected to the power supply through the electric wire 3. The base of the cutting machine can move back and forth on the track 7. The vertical pipeline for conveying gas is installed on the base. The inlet cutting nozzle 5 is a diffusion-shaped inlet cutting nozzle, which...

Embodiment 2

[0022] Embodiment 2: the application of improved semi-automatic flame cutting machine

[0023] Working process of the present invention is:

[0024] 1. Preparation before operation:

[0025] (1) After the blanking of the steel plate required to make the transitional bevel is finished, place it on the level cutting platform.

[0026] (2) The riveter designs the groove form according to the drawing, and draws the line in the thickness direction of the steel plate.

[0027] (3) Choose an experienced gas welding operator.

[0028] (4) Prepare an oxygen meter, a propane meter, a pair of gas belts, a cutting machine, an extended gun head, an imported cutting nozzle 603.6#, and a supporting power supply.

[0029] 2. Formal operation:

[0030] (1) Place the track on the steel plate to be cut smoothly, adjust the distance between the cutting edge and the track, place the assembled cutting machine on the track and add a counterweight of 25kg.

[0031] (2) Check the oxygen pressure ...

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Abstract

The invention discloses an improved semiautomatic flame cutting machine, which comprises a semiautomatic flame cutting machine (4), a liquid oxygen tank (8) and a gun head connected with one another through air belts, wherein the gun head is a prolonged gun head (2) for digital control cutting, the length of the gun head is 450 to 550 mm, and an inlet cutting nozzle (5) connected with the gun head is a divergent inlet cutting nozzle. The improved semiautomatic flame cutting machine is also provided with a rail (7) which is in slide connection with a base of the semiautomatic flame cutting machine (4). The improved semiautomatic flame cutting machine can process a steel box girder groove of the semiautomatic flame cutting machine through the steps of preparation before operation, normal operation and post-operation; besides, the improved semiautomatic flame cutting machine has the advantages of having simple and convenient operation, ensuring the quality, shortening the time limit, reducing the cost and the like, and can replace the conventional mode of processing the groove mechanically.

Description

technical field [0001] The invention relates to the field of groove processing of steel box girders, in particular to an improved groove machine of a semi-automatic flame cutting machine. Background technique [0002] Steel box girder, also known as steel plate box girder, is a commonly used structural form of long-span bridges, and its application is becoming more and more extensive. During the manufacturing process of steel box girder, according to the design and specification requirements, when two steel plates are butted, there is a difference in plate thickness. In order to prevent the stress from changing greatly and causing the stress to be too concentrated, it is necessary to open a transition groove on the thick plate , the minimum slope length of this project is 50mm, the maximum value is 272mm, and the plate thickness difference is 10-34mm. The traditional processing technology is that when the transition groove slope length is greater than 80mm, it needs to be ma...

Claims

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Application Information

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IPC IPC(8): B23K7/00B23K7/10
Inventor 徐圣佳程治南足刚王建成朋
Owner WUHAN YIYE STEEL STRUCTURE
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