Torsion-resisting deformation-resisting 360-degree rotary welding locating tool for lower cross beam

Abstract

The invention provides a torsion-resisting deformation-resisting 360-degree rotary welding locating tool for a lower cross beam. The torsion-resisting deformation-resisting 360-degree rotary welding locating tool for the lower cross beam comprises supporting stand columns, a rotating platform and portal mechanisms. The rotating platform is provided with a welding station corresponding to the lowercross beam. The rotating platform is installed on the two supporting stand columns. The supporting stand columns are provided with servo motors used for driving the rotating platform to rotate. The portal mechanism are installed on the rotating platform. A welding station is located below the portal mechanisms. Jacks are arranged on the portal mechanisms and used for tightly pressing the lower cross beam. The welding station is provided with a fixing hole corresponding to the lower cross beam. A back cover plate of the lower cross beam penetrates through the fixing hole to reach other side ofthe rotating platform, and this side of the rotating platform is provided with a reversible deformation pre-making mechanism. According to the torsion-resisting deformation-resisting 360-degree rotary welding locating tool for the lower cross beam, the tool rotates, so that weld joints on the front side, back side, left side and right side of the lower cross beam are conveniently welded; the reversible deformation pre-making mechanism can pre-make reversible deformation of materials to counteract deformation generated after welding, and unnecessary adjusting and finishing are reduced.

Description

technical field [0001] The invention belongs to the field of rail vehicles, and in particular relates to a twisted and reversed deformation 360° rotary welding positioning tool for a lower beam. Background technique [0002] The lower beam of the end wall of the car body is the basis of the entire end wall structure. It is used to connect the underframe and the side wall during the composition of the rail vehicle body. Therefore, the size, flatness and twist of the lower beam of the end wall directly affect the end wall. structure and the correctness of the entire car body structure. To sum up, ensuring the correctness of the size, flatness and twist of the beam under the end wall is one of the key links in the car body manufacturing process. [0003] However, there are following disadvantages in the lower beam assembled and welded by the traditional lower beam assembly and welding tool: [0004] 1. After the welding of the lower beam is completed, the size exceeds the tol...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention aims to overcome the above-mentioned defects in the prior art, and proposes a 360° rotary welding positioning tool for twisting and anti-deformation of the lower beam, which is used to solve the difficulty in positioning when welding with ordinary lower beam welding tools, and the size after welding. Defects such as serious deformation, out-of-tolerance flatness, serious distortion and deformation of the box, and high labor intensity

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