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Tube truss manufacture process

A manufacturing process and technology of pipe truss, applied in the field of pipe truss manufacturing process, can solve the problems of difficulty in ensuring accuracy, low efficiency, and high labor intensity of pipe truss construction, and achieve the effects of high precision, accurate angle, and saving labor and material input.

Inactive Publication Date: 2012-09-26
河北二十冶建设有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a pipe truss manufacturing process to solve the problems of high labor intensity, low efficiency and difficulty in ensuring the accuracy of pipe truss construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The manufacturing process of the present invention includes steps such as blanking of steel pipes, positioning of intersecting joints of pipe fittings, welding of pipe fittings, correction of components, pre-assembly and unloading of pre-installation racks, etc., and each manufacturing and processing link is carried out sequentially.

[0017] 1. Steel pipe blanking: Since the web of the pipe truss and the upper and lower chords are connected by welding, in order to ensure the welding quality and reduce welding deformation, the following measures are taken:

[0018] ① Selection of cutting equipment: CNC intersecting line cutting machine is used to cut the intersecting ends or intersecting nozzles of the connecting parts of steel pipe rods. Implement automatic cutting operation on intersecting lines formed by various pipe diameters and various angles;

[0019] ② Determination of the cutting length of the rod: through the test, first determine the welding shrinkage amount ...

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Abstract

The invention provides a tube truss manufacture process which comprises the steps as follows: blanking of steel tubes, positioning of intersecting points of tube fitting, welding of tube fitting, calibrating of members, pre-assembling, and disassembling of the pre-assembled truss, wherein all the manufacturing and processing links are carried out in sequence. The manufacture process has the advantages as follows: the assembly precisions of intersecting ends and intersecting holes are high; the size deviation is small; a truss body can be assembled quickly; the workload of calibration is small; formation of physical appearance is good; workload and time for polishing are greatly reduced; the quality of construction and formation can be guaranteed; smoothness and progression of all manufacture links are guaranteed; total construction period is guaranteed; material cost of manufacturing of the tube truss can be saved; inputs of manpower and goods and materials are saved; and economical effects of production are improved.

Description

technical field [0001] The invention relates to a metallurgical construction welding production process, in particular to a pipe truss production process. Background technique [0002] At present, the most fashionable roof steel structure in our country mostly adopts the form of steel truss, which is widely used in comprehensive civil buildings such as large hotels and gymnasiums. The manufacture of pipe trusses is a new construction project that is different from the manufacture of industrial plant components in the manufacture of steel structures. The most important processes of this structure type are intersecting line blanking, manufacturing and welding processes. Under the traditional process conditions, the processing of pipe and section steel assembly requires cumbersome manual lofting, scribing, cutting, repairing and grinding after cutting, etc., which is not only labor-intensive, but also inefficient, and the accuracy is difficult to guarantee. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 李庆刚
Owner 河北二十冶建设有限公司
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