Manufacture method of large conical cylinder segment

Abstract

The invention discloses a manufacture method of a large conical cylinder segment. The method comprises the following steps: step 1, dividing the to-be-manufactured conical cylinder segment into a plurality of to-be-manufactured conical ring sections in the circumferential direction; step 2, separately dividing the plurality of to-be-manufactured conical ring sections into a plurality of arc sections in the radial direction and carrying out machining forming; step 3, vertically splicing the arc sections into corresponding conical ring sections on a planar welding positioner; step 4, sequentially splicing the plurality of spliced conical ring sections into the whole segment on the planar welding positioner and carrying out positioned welding; and step 5, horizontally placing the whole segment on a roller carrier, and carrying out welding forming to obtain the conical cylinder segment. In the invention, the large conical cylinder segment is divided into a plurality of conical ring sections and then divided into a plurality of arc sections, so that the machining and forming of a panel are facilitated, the problems that the large conical cylinder segment cannot be directly machined andformed due to a large opening diameter, machining precision cannot be ensured, and welding deformation is difficult to control are solved, construction difficulty is reduced, welding efficiency is increased, and welding quality is improved.

Description

technical field [0001] The invention belongs to the technical field of ship steel structure construction, and in particular relates to a segmented construction method of a large conical cylinder. Background technique [0002] In the construction of existing ship steel structures, large conical cylinder segments usually refer to cylinder segments with a minimum inner diameter of more than 6 meters. The segments of the tapered cylinder are axisymmetric, the inner diameters of the front and rear ends of the cylinder segments are inconsistent, and the inner diameters increase or decrease linearly along the axial direction. For small-sized hollow cylinder segments, the cylinder segments are usually divided into two halves radially in the prior art, processed on mechanical equipment, and then spliced ​​into a circle on a semicircular tire frame. However, for large-scale tapered cylinder segments, the prior art has the following deficiencies: [0003] (1) The inner diameter is to...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the present invention provides a segmented construction method of a large conical cylinder. The present invention can reduce the construction difficulty of the large conical cylinder, and can use automatic welding for high-efficiency welding to improve welding efficiency and quality, reduce welding deformation, and solve the problem that the existing large conical cylinder cannot be directly processed and formed

Images