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Ultrasonic rolling strengthening robot machining system and control method for aero-engine blades

A robot processing and aero-engine technology, which is applied in the field of aero-engine blade ultrasonic rolling enhanced robot processing system and control, can solve the problems that affect the effect of blade surface modification, strengthen the machining geometric accuracy, blade flutter, blade deformation, etc., and achieve improvement Hardness, improved service life, and high degree of freedom

Active Publication Date: 2020-11-03
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the research on the surface strengthening of aeroengine blades, it was found that, on the one hand, the strengthening tools with high-amplitude and high-frequency ultrasonic vibrations acting on the blades would cause the flutter of the blades; It will cause large deformation of the blade, which will seriously affect the surface modification effect of blade ultrasonic rolling strengthening and the geometric accuracy of strengthening processing

Method used

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  • Ultrasonic rolling strengthening robot machining system and control method for aero-engine blades
  • Ultrasonic rolling strengthening robot machining system and control method for aero-engine blades
  • Ultrasonic rolling strengthening robot machining system and control method for aero-engine blades

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Embodiment 1

[0040] Such as figure 1 As shown, the embodiment of the present invention provides an aeroengine blade ultrasonic rolling enhanced robot processing system, including a robot 1 , a base 10 and a control cabinet 3 . Among them, an ultrasonic rolling strengthening device 4 is fixed on the robot 1 and drives the ultrasonic rolling strengthening device 4 to move; a main shaft turntable 5 and a three-dimensional mobile lifting device 100 are installed on the base 10, and the main shaft turntable 5 is provided with a blade fixture 6 , used to clamp the aeroengine blade 7 to be processed, the clamp 6 can rotate around the Z direction, thereby driving the blade 7 to rotate around the Z direction; a flexible follower support head 13 is fixed on the three-dimensional mobile lifting device 100 and Drive the support head 13 to complete the movement in the three directions of X, Y, and Z; a control system is set in the control cabinet 3, and the control system is electrically or communicati...

Embodiment 2

[0058] Such as Figure 9 As shown, this embodiment provides an aeroengine blade ultrasonic rolling enhanced robot processing control method, which at least includes:

[0059] Step S1: Provide an aeroengine blade ultrasonic rolling strengthening robot processing system as described in Embodiment 1, make the blade clamp 6 clamp the tenon root of the blade 7, and make the surface of the blade 7 to be processed face the ultrasonic rolling strengthening In the device 4, the flexible follow-up support head 13 supports the opposite surface of the surface to be processed.

[0060] Step S2: Generate a zigzag machining trajectory of the ultrasonic rolling strengthening device according to the equal section method according to the model of the blade.

[0061] Specifically, according to the CAD model of the blade 7, the machining trajectory of the ultrasonic rolling strengthening device 4 is generated according to the equal section method. The equal section method is a kind of machining ...

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Abstract

The invention relates to an ultrasonic rolling strengthening robot machining system and control method for aero-engine blades. The ultrasonic rolling strengthening robot machining system comprises a robot, a base and a control system, wherein an ultrasonic rolling strengthening device is fixed to the robot and driven by the robot to move; a spindle rotating table and a three-dimensional moving lifting device are mounted on the base, a rotatable blade clamp is arranged on the spindle rotating table, and a flexible follow-up supporting head is fixed to the three-dimensional moving lifting device; and the control system is in electrical connection or communication connection with the robot, the spindle rotating table and the three-dimensional moving lifting device. According to the ultrasonicrolling strengthening robot machining system and control method for the aero-engine blades, the robot is adopted to assist clamping the ultrasonic rolling device, so that the ultrasonic rolling device is matched with the three-dimensional moving lifting device and the flexible follow-up supporting head, and accurate ultrasonic rolling strengthening of the aero-engine blades is realized by collaboratively controlling the ultrasonic rolling device, the three-dimensional moving lifting device and the flexible follow-up supporting head.

Description

technical field [0001] The invention relates to the field of aero-engine processing, and more particularly relates to an aero-engine blade ultrasonic rolling strengthening robot processing system and control method. Background technique [0002] As one of the core components of aero-engines, blades are typical life-limiting components that have been served in extreme environments such as high temperature, high pressure and high speed for a long time. Ultrasonic rolling processing is a new type of surface modification technology that combines ultrasonic shot peening and low-plastic polishing. Through ultrasonic-assisted vibration, the spherical tool head hits the metal surface with high frequency and high amplitude, so that the processed surface produces a certain amount of damage. The plastic deformation layer can further reduce the roughness of the metal surface, increase the hardness of the metal surface, and introduce beneficial residual compressive stress to the inside o...

Claims

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Application Information

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IPC IPC(8): C21D7/06C22F1/00
CPCC21D7/06C22F1/00C21D7/04C22F3/00
Inventor 张显程李志强刘爽韩晓宁姚树磊龚从扬朱林张开明涂善东
Owner EAST CHINA UNIV OF SCI & TECH
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