Method for processing H-shaped crankle beam

Abstract

The invention discloses a method for processing an H-shaped crankle beam, which is characterized by comprising the following steps of: firstly, respectively obtaining a vertical face jig frame chart and a plane drawing chart of the H-shaped crankle beam according to a deepening model; drawing a top flange contour line and a bottom flange contour line of the H-shaped crankle beam on a steel platform; building each grade of jig frame on the steel platform; marking a bottom flange center line and a flame distortion correction position line on a spread bottom flange subjected to digital control cutting, baking by flame according to the flame distortion correction position; pot-welding firmly the qualified bottom flange with each grade of jig frame, installing a triangle support on the bottom flange, and processing a top flange by using the same method; rigidly fixing a web plate with the triangle support and the bottom flange by using auxiliary outside force, and pot-welding firmly; positioning and assembling the top flange on the web plate and pot-welding and fixing the top flange and the web plate; and integrally asymmetrically welding and forming on the jig frame. The invention has the advantages of simple and rapid method and high processing quality.

Description

technical field [0001] The invention relates to a processing method of a steel component, more specifically to a forming method of an H-shaped bent and twisted beam. technical background [0002] In the steel structure, there are more and more spatial bending and torsion components, and the traditional steel platform cannot meet the production and precision requirements. [0003] The H-shaped twisted beam is composed of the lower flange, the upper flange and the web. The H-shaped bent and twisted beam is a kind of irregular space bending and twisting member. ; Its production accuracy must meet all the dimensional requirements in the elevation tire frame diagram and the plane dashed line diagram; the traditional steel platform single-level tire frame surface has no height, and the projection of the upper and lower flanges coincides, so it can only be used to make regular planar components, such as H shaped beams, box columns, etc. [0004] According to the current existing ...

AI Technical Summary

Problems solved by technology

[0004] According to the current existing technology, the processing of H-shaped bending and torsion beams is firstly programmed by professionals, and the upper and lower flanges and webs are formed by numerical control pressing on the upper CNC bending machine, and then directly assembled with supports; this method has great impact on assembly and Welding personnel have very high requirements. Because cold bending is easy to rebound, thermal deformation cannot be controlled during the welding process, and there is no correction standard and cannot be corrected. Often, it is scrapped because the overall accuracy after welding does not meet the requirements.

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