Method for controlling welding deformation of telescopic steering oar base seat barrel

Abstract

The invention discloses a method for controlling welding deformation of a telescopic steering oar base seat barrel, and relates to the material molding and controlling filed. The method for controlling the welding deformation of the telescopic steering oar base seat barrel includes steps: S1, equally dividing the outer perimeter of the top of the barrel into a plurality of measurement segments, setting a measurement point in the middle position of each measurement segment, arranging a plurality of welding segments which are in one to one correspondence with the plurality of the measurement segments on the outer perimeter of the bottom of the barrel, and measuring flatness of a flange through each measurement point; S2, starting from the welding segment corresponding to the measurement segment where the measurement point with the maximal flatness value of the flange is located to perform welding once, and welding at least one welding segment every time; S3, after welding once, re-measuring the flatness of the flange, moving to the step S2 to perform welding once again, and repeating the step 2 and the step 3 until welding of all the welding segments are finished. The method for controlling the welding deformation of the telescopic steering oar base seat barrel reduces assembly accuracy of the barrel, improves production efficiency, and effectively controls the flatness of the flange.

Description

technical field [0001] The invention relates to the field of material forming and control, in particular to a method for controlling the welding deformation of a telescopic rudder propeller base cylinder. Background technique [0002] The telescopic rudder propeller base of large engineering ships such as "deep diving working mother ship" and "3200-ton double-arm frame luffing crane ship" is composed of a cylinder and a flange. welded to the hull. The installation precision of the base is higher, especially the flatness of the flange is higher, and the maximum flatness error is not more than 1.5mm. The existing base installation process usually strictly controls the assembly accuracy of the cylinder, and adopts the construction method of symmetrical welding with even numbers of welders. Due to the large cylinder, the assembly accuracy of the cylinder is difficult to control, and the installation and construction of the base is time-consuming and laborious. Moreover, it is ...

AI Technical Summary

Problems solved by technology

The existing base installation process usually strictly controls the assembly accuracy of the cylinder, and adopts the construction method of symmetrical welding with even numbers of welders. Due to the large cylinder, the assembly accuracy of the cylinder is difficult to control, and the installation and construction of the base is time-consuming and laborious. Moreover, it is difficult to control the welding deformation of the cylinder during the installation and construction process. Once the cylinder is welded and deformed, the horizontal plane of the flange will be distorted and deformed, which will affect the flatness of the flange, resulting in a large number of rework during the installation process of the base, and even the rework of the entire base. manufacture

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