Fixture for welding positioning of micro-diameter thin-walled pipe of heat exchanger

A technology for welding positioning and thin-walled tubes, which is applied in the field of aerospace science and can solve problems such as the inability to meet the precise positioning requirements of micro-diameter thin-walled tubes

Active Publication Date: 2015-03-11
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the deficiency that the traditional fixture cannot meet the precise positioning requirements of micro-diameter thin-walled tubes, ensures the precise positioning of micro-diameter thin-walled tubes during assembly and welding, and lays the foundation for the assembly of subsequent components

Method used

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  • Fixture for welding positioning of micro-diameter thin-walled pipe of heat exchanger
  • Fixture for welding positioning of micro-diameter thin-walled pipe of heat exchanger
  • Fixture for welding positioning of micro-diameter thin-walled pipe of heat exchanger

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Embodiment Construction

[0025] See figure 1 — Figure 4 , the invention is a fixture for welding and positioning micro-diameter thin-walled tubes of heat exchangers. It mainly includes movable fixture 1, partition plate 2, and fixed fixture 3 parts. The positional relationship between them is: the partition plate 2 is inserted into the transverse groove of the movable fixture 1, and the semicircular holes at both ends are paired and coupled; then the movable fixture 1 is installed on the section of the fixed fixture 3 and fixed by upper and lower screws.

[0026] When the fixture is working, firstly, the second row of micro-diameter thin-walled tubes are passed through a series of circular holes in the middle of the partition plate 2, and then the first row of micro-diameter thin-walled tubes are placed in a series of semicircular holes in the fixing fixture 3, Then let the partition plate 2 cooperate with the fixing fixture 3, so that a series of semicircular holes of the parts are coupled and pai...

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Abstract

The invention discloses a fixture for the welding positioning of a micro-diameter thin-walled pipe of a heat exchanger. The fixture consists of three parts, i.e. a movable fixture, a partition plate and a fixed fixture, wherein the partition plate is inserted into a transverse groove of the movable fixture, and semicircular holes in the two ends are paired and coupled; the movable fixture is arranged on the section of the fixed fixture, and is fixed by upper and lower screws. According to the fixture, the micro-diameter thin-walled pipe can be accurately positioned when being assembled and welded; the shortcoming that a conventional fixture cannot meet requirements on the accurate positioning of the micro-diameter thin-walled pipe is overcome, the accurate positioning of the micro-diameter thin-walled pipe during assembling and welding is ensured, and a foundation is laid for subsequent part assembling.

Description

technical field [0001] The invention relates to a fixture for welding and positioning micro-diameter thin-walled tubes of heat exchangers, which is suitable for precise positioning of dense micro-pipe fittings welding, provides a fixture for the positioning of spiral dense micro-pipe fittings, and belongs to the field of aerospace science and technology. Background technique [0002] The new heat exchanger has the characteristics of compact structure and high heat exchange efficiency. The forming of its parts and the assembly of the whole machine are the main difficulties in manufacturing the heat exchanger. The heat exchanger contains a large number of dense micro-diameter thin-walled tubes, which is its most critical component. When assembling and welding, the precise positioning of dense micro-diameter thin-walled tubes becomes a major difficulty in manufacturing heat exchangers, which directly affects the heat exchange efficiency of the heat exchanger and the quality of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/053
CPCB23K37/0533
Inventor 赵睿万敏韩金全周应科刘兵兵刘伟李新军
Owner BEIHANG UNIV
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