An automated welding method for double-layer dense grid stiffening wall panel tower steel shell block

Through automated welding methods, teaching guide online programming and double-arm robot welding system are used to solve the problems of low construction efficiency and poor quality stability of the welding of double-layer dense mesh stiffened wall panel cable tower steel shell blocks, and efficient and stable welding effects are achieved.

CN119077089BActive Publication Date: 2025-03-25CHINA RAILWAY BAOJI BRIDGE YANGZHOU CO LTD +1
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Patent Information

Application Number
CN202411460574.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-03-25
Estimated Expiration
2044-10-18

AI Technical Summary

Technical Problem

In the prior art, when welding double-layer dense mesh stiffened wall cable tower steel shell blocks, the construction efficiency is low, the welding quality is poor, and it is difficult to ensure post-welding accuracy.

Method used

The automated welding method is adopted, and the welding operation is programmed and entered through online programming by the teaching device, including the weld coordinate points between vertical ribs, horizontal ribs and steel wall plates, and automated welding is performed using a double-arm robot welding system and a drag teaching cooperative robot.

Benefits of technology

The construction efficiency of welding of steel shell blocks of double-layer dense mesh stiffened wall panel cable towers has been significantly improved, the production period has been shortened, the welding quality stability and post-welding accuracy have been ensured, and the application of automated welding processes in steel bridge manufacturing has been promoted.

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Abstract

The present invention belongs to the technical field of bridge construction, and specifically relates to an automated welding method for a double-layer dense grid stiffened wall panel cable tower steel shell block. The method comprises the following steps: cutting and preparing materials; assembling vertical ribs, transverse ribs and anchoring steel plates on the steel wall panel in sequence to form a wall panel unit, and fixing the wall panel unit on a welding platform; programming and entering welding operations; welding wall panel units of the same size using a dual-arm robot welding system in conjunction with a consumable gas shielded welding device; welding shear nails at the center of the grid stiffening formed by the transverse and vertical ribs; and welding the vertical and angular welds between the wall panel units in sequence using a dragging robot in conjunction with a shielded welding device in conjunction with a constraint tooling. The present invention solves the problem of high labor intensity and low construction efficiency in manual welding of double-layer dense grid stiffened wall panel cable tower steel shell blocks, significantly improves welding construction efficiency, greatly shortens production period, ensures the stability of welding quality and overall post-welding accuracy, and accelerates the transformation of bridge construction technology to green and low-carbon.
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