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Welding method of orthotropic plate U-shaped rib fillet welding robot and special equipment thereof

A technology for robotic welding and orthotropic plates, which is applied in welding equipment, arc welding equipment, welding accessories, etc., can solve the problem of difficulty in ensuring consistency in the appearance of fillet welds, fluctuations in welding quality of U-shaped rib fillet welds, manual Operational low efficiency and other issues, to achieve the effect of complementary welding operations, high economic and social benefits, huge application value and market prospects

Inactive Publication Date: 2013-01-09
CHINA RAILWAY SHANQIAO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the welding of U-shaped rib fillet welds, the manual method of gas shielded welding or welding with a fillet weld tracker is generally used at present. Affected by human factors, the welding quality of U-shaped rib fillet welds fluctuates to a certain extent, and the fillet weld The penetration depth cannot stably meet the requirement of 80% of the U-shaped rib thickness, and it is difficult to ensure the consistency of the appearance of the fillet weld
In the manufacturing process of some large steel bridges, the low efficiency of manual operation often becomes the biggest obstacle to completing the production plan on schedule

Method used

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  • Welding method of orthotropic plate U-shaped rib fillet welding robot and special equipment thereof
  • Welding method of orthotropic plate U-shaped rib fillet welding robot and special equipment thereof
  • Welding method of orthotropic plate U-shaped rib fillet welding robot and special equipment thereof

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Experimental program
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Effect test

Embodiment 1

[0042] The robot welding method of U-shaped rib fillet weld of orthotropic plate of the present invention, its steps comprise:

[0043] Preparation of U-shaped rib unit: U-shaped rib 2 is fixed on the bridge deck 1 by tack welding to prepare U-shaped rib unit 3; the specific operation process is as follows:

[0044]A-1. U-shaped rib groove processing and pressing: First, flatten the U-shaped rib 2 with a steel plate, then expand the width and length of the U-shaped rib 2 and reserve a certain amount of processing for blanking, milling on both sides of the steel plate and Process the fillet weld bevel, and then press it into a U shape on the molding machine;

[0045] A-2, bridge deck blanking: after the bridge deck 1 is flattened, it is unloaded;

[0046] A-3. Cleaning of the area to be welded: clean the rust, oil, moisture and other welding harmful substances in the area to be welded on the U-shaped rib 2, the bridge deck 1, and the range to be welded on both sides;

[0047]...

Embodiment 2

[0054] Special equipment for the robot welding method of U-shaped rib fillet welds on orthotropic plates, which includes a robot automatic welding system and an anti-deformation flip tire frame 4, both of which realize automatic interactive operations through the controller;

[0055] Among them, the robot automatic welding system includes a work platform 51, a mobile device 52 arranged on the work platform 51, and two sets of independent cantilever traveling mechanisms 53 arranged on the mobile device 52, and two sets of robot welding robots are arranged on each cantilever traveling mechanism 53. hand 54; the robot welding hands 54 communicate in real time through wired or wireless means, and correct the other welding hand in real time according to the welding conditions of one of the welding hands, so as to realize complementary welding operations; the robot automatic welding system also includes the overall control of the robot Cabinet, welding power supply, welding wire buck...

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Abstract

The invention discloses a welding method of an orthotropic plate U-shaped rib fillet welding robot, comprising the following steps of: A, preparing a U-shaped rib plate unit; B, clamping the U-shaped rib plate unit on an anti-deformation overturning jig and adopting a robot automatic welding system to weld a fillet weld of a U-shaped rib at one side; and C, after the fillet weld of the U-shaped rib at one side is welded, overturning the anti-deformation overturning jig to a fillet weld of the U-shaped rib at the other side to form a ship position, so as to weld the fillet weld of the U-shaped rib at the other side. Special equipment of the welding method of the orthotropic plate U-shaped rib fillet welding robot comprises the robot automatic welding system and the anti-deformation overturning jig, which can realize automatic interaction work by a controller. According to the welding method disclosed by the invention, the disadvantages of the prior art can be solved; and the stability of the welding quality of the fillet weld of the U-shaped rib is guaranteed and the production efficiency is improved.

Description

technical field [0001] The invention relates to a welding process for U-shaped rib fillet welds of orthotropic plates, in particular to a robot welding process for U-shaped rib fillet welds of bridge decks in the manufacture of steel bridges. Background technique [0002] At present, orthotropic slab structures are widely used in the deck design of long-span steel bridges. The bridge orthotropic plate structure is a structure in which a certain number of longitudinal and transverse stiffeners are welded on the deck, bottom plate or web to increase the rigidity of the bridge deck, bottom plate or web. Since its stiffness is different in two directions perpendicular to each other, it causes structural anisotropy. [0003] The longitudinal stiffeners on orthotropic slabs generally adopt U-shaped ribs or slab ribs. For the welding of U-shaped rib fillet welds, the manual method of gas shielded welding or welding with a fillet weld tracker is generally used at present. Affected...

Claims

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Application Information

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IPC IPC(8): B23K9/16B23K9/12B23K9/127B23K9/235B23K9/095B23K9/32
Inventor 徐向军胡广瑞范军旗刘壮刘振刚曹磊马立鹏高建忠刘洪柱
Owner CHINA RAILWAY SHANQIAO GRP CO LTD
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