Crane box girder three-degree-of-freedom movable welding robot

A welding robot and crane technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of high welding labor intensity and unstable manual welding quality, so as to improve welding efficiency, reduce labor intensity of workers, and achieve high orientation. The effect of precision

Active Publication Date: 2015-11-25
ANHUI UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of unstable manual welding quality and high welding labor intensity existing in the fillet welding between the web plate and the cover

Method used

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  • Crane box girder three-degree-of-freedom movable welding robot
  • Crane box girder three-degree-of-freedom movable welding robot
  • Crane box girder three-degree-of-freedom movable welding robot

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Embodiment Construction

[0011] See figure 1 , 2 , a crane box-shaped main girder three-degree-of-freedom mobile welding robot, including a base 1, a longitudinal movement mechanism, a welding torch lifting mechanism 6, a welding torch rotation mechanism, welding equipment and a cable reel 17. Described base 1 is made up of channel steel, steel plate and I-beam welding, and its longitudinal direction ( figure 1 The length in the middle Y direction) is greater than the maximum length of the crane box-shaped girder to be welded, and the linear guide rail 2 is fixed on the base 1 by bolts along the length direction of the base. Require.

[0012] The longitudinal movement mechanism includes a roller slider 3, a mobile frame 4, a second servo motor 13, a reducer 14, an L-shaped plate 15, a gear 16, and a rack 18, and the mobile frame 4 and the roller slider 3 pass through The bolts are rigidly connected, the roller slider 3 is set on the linear guide rail 2, the rack 18 is fixed on the side of the base ...

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Abstract

The invention provides a crane box girder three-degree-of-freedom movable welding robot and belongs to the technical field of robot welding. The welding robot comprises a base, a longitudinal moving mechanism, a welding gun lifting mechanism, a welding gun rotating mechanism, a welding device, a cable drum and the like. The welding device comprises a wire feeder, a welding machine, a gas cylinder base and a carbon dioxide gas cylinder. The welding gun rotating mechanism is installed on the welding gun lifting mechanism through a lifting table. A gear and rack driver is matched with a linear guide rail pair to achieve precise positioning of long-displacement movement. The position and the posture of the welding gun are controlled through three servo motors together to achieve automatic welding of long-distance planar curve continuous smooth flat fillet seams. The welding robot has the technical characteristics of being simple in structure, short in transmission chain, precise in position, reliable in work, stable in welding quality and the like.

Description

Technical field: [0001] The invention belongs to the technical field of robot welding, and in particular relates to an automatic welding device for a three-degree-of-freedom long welding seam of a box-shaped main girder of a crane, which is used for continuous carbon dioxide gas shielded welding of the fillet welding between the web plate and the cover plate of the box-shaped main girder of a crane . Background technique: [0002] The box-shaped main girder of the crane is spliced ​​and welded by the upper and lower cover plates, webs, and large and small ribs. The upper and lower cover plates and the web form an upper arch weld and a broken line weld (plane curve). The traditional welding process of the web weld is manual welding, but the span of the crane box-shaped girder is relatively large, up to 50 meters. The continuous long-distance welding operation not only makes the workers tired, but also the welding efficiency is low, and the welding quality is unstable. The me...

Claims

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Application Information

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IPC IPC(8): B23K37/02B23K9/12B23K9/16
CPCB23K9/12B23K9/16B23K37/0252
Inventor 戴啟辉王全先
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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