Flatcar chassis overturning device

Abstract

The invention provides a flatcar chassis overturning device. The flatcar chassis overturning device comprises an overturning frame, multiple support positioning mechanisms, and overturning mold connecting frames, wherein the overturning frame is a rectangular frame, and comprises a pair of side beams oppositely arranged and a pair of end beams perpendicular between the pair of side beams; the multiple support positioning mechanisms are symmetrically arranged on the side beams in the length directions of the pair of side beams; the support positioning mechanisms comprise support frames connected with the side beams, and support modules and clamping modules arranged on the support frames; the support modules and the clamping modules are used for supporting, clamping and positioning long edges on two sides of a flatcar chassis; the overturning mold connecting frames are arranged on the end beams; the multiple support positioning mechanisms are arranged in the length directions of the sidebeams of the overturning frame; and the support modules and the clamping modules of the support positioning mechanisms are arranged on the pair of side beams through the support frames for constraining the degree of freedom of the flatcar chassis frame from two directions to realize support and clamping of the flatcar chassis, so that the flatcar chassis is located in a constraint state in the welding process, the welding deformation is prevented, and the welding quality is guaranteed.

Description

technical field [0001] The invention belongs to the field of welding devices for underframe structures without center beams, and more specifically relates to an overturning device for underframes of flat cars. Background technique [0002] Laaers 5.854 flat car chassis is composed of no middle beam welding structure, which is easily affected by welding deformation, and the dimensional accuracy requirements are high, and the dimensional tolerance is within ±5mm, and the car body is divided into straight end and oblique straight end. There is a difference in height between the two ends of the headstock, and the existing flip tires with the same height of the rotating shaft cannot meet its flip welding requirements. If the more common roller-type flip welding is used at present, it can only be flipped simply by controlling the two end points, and the other positions are in an unconstrained free state. During the welding process, welding deformation is likely to occur, causing d...

AI Technical Summary

Problems solved by technology

[0002] Laaers 5.854 flat car chassis is composed of no middle beam welding structure, which is easily affected by welding deformation, and the dimensional accuracy requirements are high, and the dimensional tolerance is within ±5mm, and the car body is divided into straight end and oblique straight end. There is a height difference between the two ends of the head, and the existing flip tires with the same height of the shaft cannot meet the flip welding requirements.

If the more common roller-type flip welding is used at present, it can only be flipped simply by controlling the two end points, and the other positions are in an unconstrained free state. During the welding process, welding deformation is likely to occur, causing distortion of the chassis composition, and deflection prefabrication cannot be performed. Increased the difficulty of post-adjustment

If the crane is used to lift and flip the welding, it will not only pose a safety hazard, but also cannot control the welding deformation

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