Method for rectification of large plate-shaped structural members

Abstract

The invention provides a method for correcting a large-scale plate-shaped structural member. The method comprises the following steps that a plurality of pressure head devices are arranged on the twosides of a furnace body, at least one end of the furnace body is provided with a pushing device, an observation window is arranged at the top of the furnace body, and an acquisition device is arrangedabove the observation window; the pushing devices push a loading table to the furnace body, and the collecting device is used for collecting the contour data of the plate-shaped structural member; the furnace body is heated to a preset temperature, the pressure head in the pressure head device is extended to a set position according to the correction scheme, a period of time in the maintaining process is maintained, the collecting device is used for acquiring the contour data of the plate-shaped structural member so as to confirm the executing state of the correcting scheme, and if the correcting effect is confirmed, the correcting effect is confirmed, and the furnace body is pulled out through the pushing devices; and the correction of the large-scale plate-shaped structural member is achieved through the above steps. According to the method, the effect of correcting can be monitored in real time or in an intermittent mode, the correcting efficiency is greatly improved, the correcting machining precision is improved, and the reworking problem is solved.

Description

technical field [0001] The invention relates to the field of machining, in particular to a method for correcting large-scale plate-shaped structural parts in building construction. Background technique [0002] Existing large-scale structures often use large-scale grouted steel pipes in order to ensure reliable stress. The length of the steel pipe reaches 10 meters, and the thickness of the plate exceeds 2cm. During the cutting and pressing of the plate, it is prone to deformation. Due to the large size, it needs to be leveled before welding to facilitate the welding operation. Due to the thick material, the cold bending method requires expensive large-scale equipment, and it is easy to accumulate internal stress, which is not conducive to the later welding operation. [0003] Chinese patent document CN 102500657A describes a method for correcting welding deformation of large-scale plate-shaped structural parts. The correction is achieved by using gravity in the heating fur...

AI Technical Summary

Problems solved by technology

But it is not applicable to the case of "S" shape deformation

Moreover, the correction of this method depends on the calculation in advance, but due to the different uniformity of the material, the calculation is difficult to be consistent with the actual situation

As a result, there are still large errors in the corrected plate-shaped structural parts, and the processing efficiency is low

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