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A butt welding positioning fixture and its application method

A positioning fixture and butt welding technology, applied in the field of welding, can solve the problems of difficult to take out the hoop of the parts, time-consuming and laborious, deformation of the parts, etc., and achieve the effect of easy demoulding

Active Publication Date: 2017-03-22
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diversion column of a certain type of engine is shown in Figure 1(a) and Figure 1(b). It is formed by butt welding of two bow-shaped thin-walled parts. The longest weld seam is 96mm, while the width of the diversion column is only 29mm. 3mm; The welding positioning fixture adopts an integral core. The weld seam is deformed by heat during welding, and the weld seam shrinks after welding. The part hoop is not easy to take out on the core. It is time-consuming and labor-intensive to gradually withdraw from the integral core of the welding positioning fixture, and it will also cause deformation of the parts. In order to improve production efficiency, it is urgent to improve the structure of the welding positioning fixture

Method used

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  • A butt welding positioning fixture and its application method
  • A butt welding positioning fixture and its application method
  • A butt welding positioning fixture and its application method

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] The present invention is a two-bow type thin-walled butt welding positioning fixture designed by utilizing the method of split combination and the advantages of paired cone blocks used together, such as Figure 2 to Figure 6 As shown, the welding positioning fixture includes three parts: a positioning assembly 1 , a pressing assembly 2 and a discharge block 3 .

[0045] see Figure 7 , the positioning assembly 1 is composed of a positioning seat 1a, a screw 1b and a positioning assembly 1c for socketing parts. The internal dimensions of the parts match the external dimensions of the positioning assembly 1c. In the present invention, the parts are butt welded with two bow-shaped thin-walled parts The guide post 5 is taken as an example, the upper end of the positioning seat 1a faces the guide post 5 to perform end face positioning, that is, when the gu...

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Abstract

The invention relates to a butt-welding locating clamp and a use method thereof. A locating assembly in the butt-welding locating clamp comprises a locating seat and a locating combined piece for being connected with a part to be welded in a sleeving manner. The size of the interior of the part is matched with the size of the exterior of the locating combined piece. A first groove is formed in the upper end of the locating seat. The locating combined piece is arranged in the first groove and comprises a first wedge-shaped block and a second wedge-shaped block. At least one of the upper end face and the lower end face of the first wedge-shaped block is flush with at least one of the upper end face and the lower end face of the second wedge-shaped block. Pressing assemblies are distributed on the two sides of the locating combined piece and can press the outer side face of the part after the part is sleeved with the locating combined pace. A discharging block is provided with a through hole where the first wedge-shaped block or the second wedge-shaped block can penetrate. According to the butt-welding locating clamp and the use method, the first wedge-shaped block and the second wedge-shaped block can slide and fall off relative to each other after being knocked, and demolding is facilitated; and the part can be protected through the discharging block and prevented from being damaged when the first wedge-shaped block and the second wedge-shaped block are knocked, operation is convenient, and locating is reliable.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of welding, and in particular relates to a butt welding positioning fixture and a using method thereof. [0003] 【Background technique】 [0004] The deflector column is one of the more important components in the rotor assembly of an aero-engine. The diversion column is formed by butt welding of two bow-shaped thin-walled parts. The weld seam is long, the width is small, and the wall thickness is thin. The diversion column of a certain type of engine is shown in Figure 1(a) and Figure 1(b). It is formed by butt welding of two bow-shaped thin-walled parts. The longest weld seam is 96mm, while the width of the diversion column is only 29mm. 3mm; The welding positioning fixture adopts an integral core. The weld seam is deformed by heat during welding, and the weld seam shrinks after welding. The part hoop is not easy to take out on the core. It is time-consuming and labor-intensive to gradually withdraw from th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
CPCB23K37/0443B23K2101/04
Inventor 黄洪展张小莉朱德林张宝通池斌殷凤翔秦瑾琦牛瑞岩
Owner AECC AVIATION POWER CO LTD
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