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Fixing and leveling device and method for repairing turbine blades through SLM

A technology of turbine blades and leveling devices, applied in the direction of turbines, process efficiency improvement, additive manufacturing, etc., can solve problems such as wear, cracks, defects, etc., to prevent deflection or movement, improve precise adjustment, and physical structure solid effect

Pending Publication Date: 2021-12-03
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Turbine blades work in a harsh environment with high temperature and high speed, so they are prone to wear, damage, cracks and other problems, which will affect the normal operation of the aero-engine

Method used

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  • Fixing and leveling device and method for repairing turbine blades through SLM
  • Fixing and leveling device and method for repairing turbine blades through SLM
  • Fixing and leveling device and method for repairing turbine blades through SLM

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Experimental program
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Embodiment Construction

[0066] The present invention will be described in further detail below in conjunction with specific embodiments.

[0067] Such as Figure 1-7 shown. The invention discloses a fixed leveling device for repairing turbine blades by SLM, which includes a blade clamping mechanism 1, a first angle adjustment mechanism 2 and a second angle adjustment mechanism 3 connected sequentially from top to bottom;

[0068] The blade clamping mechanism 1 includes: a first platform 101 and four movable clamping mechanisms 102 symmetrically arranged on the first platform 101; the movable clamping mechanisms 102 are used to clamp the tenon root of the turbine blade 4;

[0069] Each movable clamping mechanism 102 includes: two screw rods 1021, a vertical movement guide block 1023;

[0070] Two screw rods 1021 are vertically spaced on the first platform 101, and the vertical movement guide block 1023 is sleeved on the screw rod 1021 through the guide holes 1023a at both ends;

[0071] On one side...

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Abstract

The invention discloses a fixing and leveling device and method for repairing turbine blades through SLM. The device comprises a blade clamping mechanism, a first angle adjusting mechanism and a second angle adjusting mechanism. The device has two mutually orthogonal rotational degrees of freedom, and can clamp the turbine blades and adjust the posture of the turbine blades in two mutually orthogonal directions. According to the device, the large rotation amount is converted into the small rotation amount through a transmission structure, and fine angle adjustment can be achieved; and moreover, scale marks are arranged, so that quantitative angle adjustment can be realized. The device is simple in structure, easy and convenient to operate and disassemble, and capable of conveniently and rapidly achieving clamping and posture adjustment of the turbine blades.

Description

technical field [0001] The invention relates to a fixed leveling device applied to SLM, in particular to a fixed leveling device and method for repairing turbine blades by SLM. Background technique [0002] Turbine blades are key components of aero-engines, and generally have complex shapes and fine internal cooling channel structures. Turbine blades work in a harsh environment of high temperature and high speed, so they are prone to wear, damage, cracks and other problems, which will affect the normal operation of the aero-engine. Turbine blades with complex cavity structures are expensive to manufacture, so damaged blades are usually repaired and reused. [0003] Damaged turbine blades can be repaired by selective laser melting (Selective Laser Melting, SLM) technology. [0004] SLM is a metal additive manufacturing technology with great industrialization value, which can directly form parts that are almost completely dense and have complex structures. However, SLM work...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F12/30B22F10/31B22F10/28B22F7/06B22F5/04B33Y40/00
CPCB22F12/30B22F10/31B22F10/28B22F7/062B22F5/04B33Y40/00B22F2007/068Y02P10/25
Inventor 王迪邓国威刘林青杨永强
Owner SOUTH CHINA UNIV OF TECH
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