Reactor core shroud assembly welding clamping device and clamping and welding method

A clamping device and reactor technology, applied in welding equipment, laser welding equipment, metal processing equipment, etc., can solve the problems of difficulty, repeated clamping, useless power, etc., to simplify the operation difficulty, improve the production efficiency, and improve the success rate. Effect

Pending Publication Date: 2017-12-29
上海第一机床厂有限公司
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  • Abstract
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Problems solved by technology

[0004] The support device in the existing weldment structure has only a single support function, and it is difficult to adjust and measure, and the overall structure is not rigid enough, lacks a reliable positioning reference, and the overall rigidity cannot completely resist the welding of the workpiece after laser welding stress deformation
Since there are 8 welds in the core shroud, the existing support device cannot be clamped and welded multiple times at one time, resulting in repeated clamping and a lot of useless work

Method used

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  • Reactor core shroud assembly welding clamping device and clamping and welding method
  • Reactor core shroud assembly welding clamping device and clamping and welding method
  • Reactor core shroud assembly welding clamping device and clamping and welding method

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Embodiment Construction

[0048] The specific implementation of the reactor core shroud assembly welding and clamping device and the clamping and welding method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] See attached figure 1 , the reactor core shroud 1 is a cylindrical structure, composed of multiple sub-assemblies, a plurality of stepped joint surfaces are formed on the cylinder body, and the stepped joint surfaces are perpendicular to each other, forming 8 joint seams on the cylinder body, processed The process requires laser welding of 8 seams to form the overall structure of the core shroud 1 .

[0050] The welding process will be carried out on the clamping device, see attached figure 2 , the clamping device mainly includes an inner support assembly 2, an outer hoop assembly 3 and a roller assembly, the inner support assembly 2 is arranged inside the core shroud 1, and the outer hoop assembly 3 is arranged outside the core ...

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Abstract

The invention belongs to the technical field of manufacturing and processing of nuclear power reactor internal components, and discloses a welding and clamping device for a reactor core shroud assembly, which includes an inner support assembly, an outer hoop assembly and a roller assembly. Inner support of the section, each inner support is provided with a positioning layer and a top tight layer, the support assembly is arranged inside the core shroud assembly, and the outer hoop assembly includes several outer hoops, and each outer hoop is provided with a universal Jacking parts, the outer hoop assembly is arranged on the periphery of the core shroud assembly, the top tight layer of the inner support assembly and the universal jacking piece of the outer hoop assembly fix the core shroud as a whole, and the roller assembly includes rollers and The roller frame is provided with rollers at both ends of the core shroud, and the roller assembly makes the core shroud rotate and displace on the roller frame. The invention also discloses a clamp welding method. The invention realizes one-time clamping and multiple welding of the core shroud, and provides sufficient rigid support for deformation after welding.

Description

technical field [0001] The invention belongs to the technical field of manufacturing and processing of nuclear power reactor internal components, in particular to a welding clamping device and a clamping welding method for a reactor core shroud assembly. Background technique [0002] The butt joint of the longitudinal seam is completed by laser welding in the final assembly of the reactor core shroud assembly. Due to the large volume and thick material of the reactor core shroud, the welding process must be supported by effective fixtures. [0003] In the prior art, several ring-shaped support weldments are used as the support body, and the ring-shaped supports are simply connected to form a whole, and multi-point adjustment supports are performed on each ring section. [0004] The support device in the existing weldment structure has only a single support function, and it is difficult to adjust and measure, and the overall structure is not rigid enough, lacks a reliable pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/24B23K26/60B23K26/70
CPCB23K26/24B23K26/60B23K26/702
Inventor 唐剑锋张亮蒋恩龚宏伟秦沈杰梅芳
Owner 上海第一机床厂有限公司
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