Tool capable of carrying out dense hole forming and preventing deformation for barrel

Abstract

The invention relates to an inner support tool, in particular to a tool capable of carrying out dense hole forming and preventing deformation for a barrel. The device is characterized by comprising acircular ring-shaped support, fan-shaped supporting plates are uniformly distributed in the circumferential direction on the upper surface and the lower surface of the support, and the supporting plates on the upper surface and the lower supporting plates on the lower surface are correspondingly arranged in a pairwise mode; and the outer edges of the supporting plates extend out of the support, fan-shaped sliding blocks are arranged between outer extending parts of each group of supporting plates, radial threaded holes are formed in the portion, corresponding to each group of supporting plates, of the support, jacking bolts are arranged in the radial threaded holes, and the outer ends of the jacking bolts abut against the inner edges of the corresponding sliding blocks. By the adoption ofthe tool, circumferential full support can be carried out on the inner side of the barrel, the anti-deformation effect is good, so that the quality of a welding operation can be ensured; moreover, thetool can be matched with a reinforcing ring in the barrel, and reinforcing ring web plates are not prone to occur buckling deformation; and meanwhile, the tool does not need to be welded, so that a workpiece base material can be prevented from being damaged.

Description

technical field [0001] The invention relates to an inner support tool, in particular to an anti-deformation tool for densely opening holes in a cylinder, especially suitable for intensive large-hole opening operation of a large-diameter cylinder with an inner reinforcing ring. Background technique [0002] It is known in the machining industry that for many cylindrical equipment, the cylindrical shell needs to be drilled and full-welded thickened plates are installed. The proportion of openings on the circumference of the shell has to reach about 70%, while The qualified standard for roundness of the final shell cylinder is not greater than 4mm. [0003] In the prior art, in order to prevent the cylinder from being deformed during partial perforation welding, the conventional method is to add 8 to 16 support legs inside the cylinder, and then perform perforation welding. With this method, the support on the inner side of the cylinder is a point support, and its effective an...

AI Technical Summary

Problems solved by technology

If the support legs are directly installed on the reinforcement ring, the web of the reinforcement ring is prone to instability and deformation

The biggest problem is that when the supporting legs are installed and supported on the cylindrical workpiece, in order to prevent the displacement or loosening between the two, spot welding is required between the supporting legs and the workpiece. , easy to damage the workpiece base metal

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