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Welding positioning tool for backing weld

A technology for welding positioning tooling and bottom welding, which is applied in welding equipment, welding equipment, auxiliary welding equipment, etc. The effect of preventing oxidation and improving weld quality

Pending Publication Date: 2021-07-09
CHANGZHOU INST OF MECHATRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before welding, it is difficult to accurately locate and fix the helium inlet and outlet bosses and helium holes

Method used

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  • Welding positioning tool for backing weld
  • Welding positioning tool for backing weld
  • Welding positioning tool for backing weld

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Experimental program
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Embodiment Construction

[0020] In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the present embodiment provides a backing welding positioning tool 10. When in use, first set the helium inlet and outlet bosses 9 on the outer positioning core 2 of the backing welding and positioning tooling 10, and then weld the backing The positioning frock 10 stretches into the bottom of the armor helium hole 11 through the helium import and export boss 9 .

[0022] Such as Figure 1-8 As shown, the bottoming welding positioning tool 10 of the present embodiment includes an outer nut 6, an expansion core 4, an outer positioning core 2 and an inner positioning core 8, and the expansion core 4 includes a stem 41 and a lower vertebral body 42, and the lower vertebral body 42 Connected with the bottom of the ste...

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PUM

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Abstract

The invention discloses a welding positioning tool for backing weld. The welding positioning tool comprises an outer nut, an expansion core, an outer positioning core and an inner positioning core, the expansion core comprises a core column and a lower cone, the lower cone is connected with the bottom of the core column, the outer nut is arranged on the core column in a sleeving mode and is screwed with the core column, the inner positioning core is arranged on the core column in a sleeving mode, the core column drives the lower cone to move up and down in the inner positioning core, the inner positioning core is sleeved with the outer positioning core, and the top face of the outer positioning core abuts against the bottom of the outer nut. According to the welding positioning tool for backing welding, the forming quality of welding seams is improved.

Description

technical field [0001] The invention relates to a welding positioning tool for backing welding, which belongs to the technical field of welding. Background technique [0002] Currently, superconducting coils of tokamak devices are usually wound with CICC conductors. The CICC structure refers to the conductor formed by inserting the superconducting cable into the armor and then reducing the diameter. The superconducting coil is cooled by supercritical helium forced flow. In order to introduce liquid helium into the coil, it is necessary to drill helium holes on the armor inside or outside the coil, and then weld the helium inlet and outlet bosses to the armor. The coil armor will bear a huge electromagnetic load during operation. The lack of helium inlet and outlet armor materials leads to geometric disconnection at this place. Therefore, the helium inlet and outlet welds are the areas with the highest stress on the entire coil, which puts strict requirements on the quality ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K37/04B23K31/02
CPCB23K37/00B23K37/0443B23K31/02
Inventor 许爱华金京唐悦王秋红王行刚高建国朱亚军王佳伟武玉
Owner CHANGZHOU INST OF MECHATRONIC TECH