With the development of construction technology and the expansion of building scale,the height of tower crane and the quality of hoisted objects are increasing,so mast sections must have higher strength and stiffness to ensure the bearing safety of cranes.However,at present,the serious welding deformation of the mast section of tower crane during welding seriously affects the assembly technology of tower crane.To realize the support,post-welding deformation detection and anti-deformation repair of the mast section of the tower crane during welding,the welding deformation of the mast section of the tower crane was predicted through finite element analysis,and a welding fixture of mast sections of tower cranes based on the anti-deformation principle was designed,which is suitable for clamping and fixing the welding parts of mast sections of tower cranes,measuring the deformation of mast sections of tower cranes caused by welding,and adjusting the anti-deformation based on the deformation data.By combining the use of special fixture,deformation measurement module and bearing reaction module,the deformation correction was completed in the welding process,and then the accurate welding of mast sections of tower cranes was realized.This design can not only improve the welding quality of mast sections,but also significantly improve the welding efficiency.
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维普
