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Welding fixture for water box body of steam turbine generator unit and application method of welding fixture

A technology for a steam turbine generator set and a welding fixture, which is applied to welding accessories and other directions, can solve the problem that it is difficult to meet the implementation of automatic argon arc welding, it is difficult to adapt to the installation limit of water box bodies of different structures, and it is difficult to achieve centering, leveling, and limiting. , locking function and other issues, to achieve the effect of small occupied space, convenient and accurate coaxial and concentric fixation, easy processing and operation

Active Publication Date: 2021-12-03
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a welding jig for the water box body of a turbogenerator set and its use method, which solves the problems existing in the prior art that it is difficult to realize the functions of centering, leveling, limiting, and locking. It is difficult to adapt to the installation limit of water boxes with different structures, and it is difficult to meet the implementation of automatic argon arc welding and other problems

Method used

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  • Welding fixture for water box body of steam turbine generator unit and application method of welding fixture
  • Welding fixture for water box body of steam turbine generator unit and application method of welding fixture
  • Welding fixture for water box body of steam turbine generator unit and application method of welding fixture

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Experimental program
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Effect test

Embodiment 1

[0054] Such as Figure 1 to Figure 11 As shown, a welding fixture for the water box body of a steam turbine generator set includes a rotary base 1, a positioning pin sleeve 2, a positioning rod 3, an adjustment plate 6, a height adjustment member 7, and a positioning device. The rotary base 1 is provided with Base positioning hole 11, the positioning pin sleeve 2 is nested in the base positioning hole 11, the positioning pin sleeve 2 is sleeved outside the bottom end of the positioning rod 3, the rotary base 1 and the adjusting plate One end of 6 is rotationally connected, and the height adjusting member 7 is connected to the other end of the adjusting plate 6, and the height adjusting member 7 can adjust the vertical height between the other end of the adjusting plate 6 and the rotary base 1 , the positioning device is used to limit the water box body 9 .

[0055] To use, the following steps can be taken:

[0056] S1, connecting the rotary base 1 with the chuck of the argon...

Embodiment 2

[0074] Such as Figure 1 to Figure 11 As shown, as a further optimization of Embodiment 1, this embodiment includes all the technical features of Embodiment 1. In addition, this embodiment also includes the following technical features:

[0075] As a preferred technical solution, the positioning rod 3 is provided with a positioning external thread 31 , the positioning device is a locking nut 4 , and the locking nut 4 cooperates with the positioning external thread 31 .

[0076] The locking nut 4, the positioning external thread 31, and the support of the adjusting plate 6 to the water box body 9 limit the position of the water box body 9. The structure is simple, the operation is convenient and efficient, and it is convenient for installation and disassembly.

[0077] As a preferred technical solution, a locking washer 5 is also included, and the locking washer 5 cooperates with the locking nut 4 and the positioning external thread 31 .

[0078] The setting of the locking gas...

Embodiment 3

[0080] Such as Figure 1 to Figure 11 As shown, on the basis of Embodiment 1 and Embodiment 2, this embodiment provides a method for using a welding jig for a water box body of a turbogenerator set.

[0081] A method for using a welding jig for a water box body of a turbogenerator set, comprising the following steps:

[0082] S1, connecting the rotary base 1 with the chuck of the argon arc welding machine, so that the center of the positioning hole 11 of the base is consistent with the center of rotation of the chuck;

[0083] S2, adjusting the relative positional relationship between the positioning rod 3 and the base positioning hole 11, so that the positioning rod 3 and the base positioning hole 11 are coaxial and concentrically fixed;

[0084] S3, setting the water box body 9 outside the positioning rod 3;

[0085] S4, using the positioning device to limit the position of the water box body 9 .

[0086] In the present invention, the positioning pin sleeve 2 is nested in...

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Abstract

The invention discloses a welding fixture for a water box body of a steam turbine generator unit and an application method of the welding fixture. The welding fixture comprises a rotary base, a positioning pin sleeve, a positioning rod, an adjusting plate, a height adjusting piece and a positioning device, wherein a base positioning hole is formed in the rotary base; the positioning pin sleeve is embedded in the base positioning hole; the bottom end of the positioning rod is sleeved with the positioning pin sleeve; the rotary base is rotationally connected with one end of the adjusting plate; the height adjusting piece is connected with the other end of the adjusting plate; the height adjusting piece can adjust the height of the other end of the adjusting plate and the height of the rotary base in the vertical direction; and the positioning device is used for limiting the water box body. According to the welding fixture for the water box body of the steam turbine generator unit and the application method of the welding fixture provided by the invention, the problems that in the prior art, centering, leveling, limiting and locking functions are difficult to achieve, installation limiting of water box bodies with different structures is difficult to adapt, and implementation of automatic argon arc welding is difficult to meet are solved.

Description

technical field [0001] The invention relates to the technical field of turbo-generator tooling, in particular to a welding jig for a water box of a turbo-generator and a method for using the same. Background technique [0002] The water-cooled hollow strands of the stator bars of the 600MW steam turbine generator set are generally made of copper structure, and their corrosion resistance is weaker than that of stainless steel. Therefore, stainless steel water-cooled hollow strands are now used to replace them. The water box body and hollow lead part of the water and electricity joint are upgraded from brazing to fusion welding. Among them, the water box is usually an asymmetrical thin-walled stainless steel tube plate (tubular or plate) welded structure, and its characteristics are: 1. The thickness of the plate is ≤ 4mm. If manual welding is used, it is easy to weld through and the appearance consistency cannot be guaranteed; 2. 1. There are threads on the connected pipe fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/32
CPCB23K9/32
Inventor 刘道刚范平童海波林松
Owner DONGFANG ELECTRIC MACHINERY
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