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Welding Tooling and Welding Method for Thin-walled Bellows Sheet

A technology for welding tooling and bellows, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve problems such as molten pool collapse, welding mushroom asymmetry, poor weld formation, etc., and achieve good repeatability , prevent weld seam collapse, simple operation effect

Active Publication Date: 2019-12-31
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem solved by the invention is that the existing thin-walled corrugated pipe is prone to collapse of the molten pool, poor weld formation, asymmetric welding mushrooms, and low yield

Method used

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  • Welding Tooling and Welding Method for Thin-walled Bellows Sheet
  • Welding Tooling and Welding Method for Thin-walled Bellows Sheet

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Embodiment Construction

[0013] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0014] see Figure 1 to Figure 2 , The welding tooling of the thin-wall bellows diaphragm of the present invention includes an inner circle welding tool 1 and an outer circle welding tool 2 . Inner circle welding tool 1 comprises inner circle welding tool base 11, inner circle welding tool pressing block 12 and elbow clamp 13. The inner circle welding tool base 11 includes a cavity outer circle 111 and a cavity inner circle 112 . The cavity inner circle 112 and the cavity outer circle form a stepped structure. The diaphragm is located on the step formed by the cavity outer circle 111 and the cavity inner circle 112 . Of course, those skilled in the art can understand that the inner circle of the cavity and the outer circle of the cavity...

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Abstract

The invention discloses a welding tool and welding method of a thin-wall corrugated pipe membrane. According to the welding method, an inner circle welding tool of outer circle locating design and anouter circle welding tool of outer circle locating design are adopted, the high-precision pre-welding assembly requirement of the thin-wall corrugated pipe membrane within the thickness range being (0.1-0.5) mm can be achieved, and the requirements of welding for the gap, jump, coaxiality and other indexes are met.

Description

technical field [0001] The invention relates to welding technology, in particular to a welding tool for a diaphragm of a thin-wall bellows and a method for using it. Background technique [0002] The bellows is the key structural part of the pressurized conveying system of the launch vehicle. It is usually welded by dozens of thin-walled metal diaphragms (0.1-0.5) mm, the upper cover and the base. Welding is a key process in the manufacture of thin-walled bellows. The quality of welding directly determines the performance of the bellows. Once one of the welds breaks, the core function will be lost, which will directly affect the success or failure of the rocket launch. In the welding of thin-walled bellows, welding methods such as micro-beam TIG, micro-beam plasma arc and vacuum electron beam are mostly used at present. [0003] Due to the thin wall thickness of the bellows diaphragm, in order to ensure good welding quality, it has high requirements for pre-welding assembly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
CPCB23K37/0435
Inventor 尹玉环余果朱雪龙蔡爱军郭炳包云峰
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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