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A follow-up clamping device for repairing engine disk damage

A damage repair and clamping device technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve problems such as deformation or translocation, blade failure, inability to protect, etc., to improve stability and increase clamping range Effect

Active Publication Date: 2022-02-11
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The environment of turboshaft engine blisk blades is harsh in actual service. Extreme working conditions and foreign object damage will cause large-scale failure of the blades, and the overall replacement cost is extremely high. The use of repair and replacement technology is to repair the blisk blades and extend the engine blisk blades. The inevitable choice of life, but the reliability and precision of the engine blisk blade structure are high, and the blade is a thin-walled structure. During the repair and replacement process, the large pressure will make the blade easily deformed and shifted, so that the repair performance cannot be guaranteed. Bring hidden dangers to the performance and safety of repaired blades
[0004] In the existing repair technology, the clamping of the blisk blade is basically to fix the position of the blade, but the fixing method often causes deformation or translocation around the repair weld of the blade due to the inability to clamp, thus affecting the organizational structure of the weld and performance

Method used

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  • A follow-up clamping device for repairing engine disk damage
  • A follow-up clamping device for repairing engine disk damage
  • A follow-up clamping device for repairing engine disk damage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see image 3 , a follower clamping device for engine disk damage repair, comprising a follower clamp assembly 1 and a control box 2, the control box 2 controls the coordinated movement of the follower clamp assembly 1 and a stirring needle.

[0038] The follow-up clamping assembly 1 includes an intelligent induction control unit 11 and a jaw pressing unit 12;

[0039] Wherein, the intelligent induction control unit 11 is used to control the compression and retreat of the pressure jaw unit 12 to be connected; the intelligent induction control unit 11 includes an inductor and a controller, and the inductor is used to perceive all the stirring needles during the repair process. In the position, the controller is used to control the pressing and retracting of the pressing jaws, thus ensuring that macroscopic translocation does not occur in areas other than the weld area during the repair process.

[0040] The follow-up clamping assembly 1 of this embodiment is a double-sid...

Embodiment 2

[0048] A follow-up clamping device used for repairing engine disk damage. The difference from Embodiment 1 is that the follow-up clamp assembly of this embodiment adopts a single-side follow-up clamping jaw clamp assembly, which is figure 2 One-sided follower clamping assembly shown;

[0049] The follow-up clamping device used for engine disk damage repair of this embodiment, when working:

[0050] During the friction stir welding repair process of engine blisk blades, before the stirring needle moves, the blade is clamped on one side, and the pressure claws fix the damaged blade and the repair compensation body at the same time, and the pressure claws corresponding to the centerline of the stirring needle are in the In the retreat state, the other pressing claws distributed on both sides of the stirring needle are in the pressing state and are between pressing and retreating.

[0051] The stirring needle starts to rotate, and the pressing claw retreats in the moving directi...

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PUM

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Abstract

The invention discloses a follow-up clamping device and a repair method thereof for repairing engine disk damage, comprising a follow-up clamp assembly and a control box; the follow-up clamp assembly includes an intelligent induction control unit and a claw pressing unit ; Wherein, the intelligent induction control unit is used to control the compression and retreat of the jaw unit to be connected; the intelligent induction control unit includes a sensor and a controller, and the sensor is used to sense the position of the stirring needle during the repair process , the controller is used to control the pressing and retreating of the pressing jaws; the control box is used to control the pressing and retreating of the follower clamping assembly so that it coordinates with the working position of the stirring needle.

Description

technical field [0001] The invention belongs to the technical field of repairing aeroengine blades, and in particular relates to a follow-up clamping device used for repairing engine disk damage. Background technique [0002] Turboshaft engines rely entirely on gas flow to generate thrust. With the continuous improvement of thrust-to-weight ratio / power-to-weight ratio, structural reliability, and precision consistency requirements of aeroengines, the harsh service environment is also likely to cause blisk blades to fail. The turboshaft engine is divided into two types: centrifugal type and axial flow type, and the geometry of the blisk blade is compact and the blade profile is complex. [0003] The environment of turboshaft engine blisk blades is harsh in actual service. Extreme working conditions and foreign object damage will cause large-scale failure of the blades, and the overall replacement cost is extremely high. The use of repair and replacement technology is to repai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/12B23K20/26
CPCB23K20/12B23K20/26B23K20/122
Inventor 杨冠军刘梅军刘宏张高李长久
Owner XI AN JIAOTONG UNIV