阅读说明：本技术 一种基于激光三角测量的监控叶片整体形变的方法和装置 (A kind of method and apparatus of the monitoring blade entirety deformation based on laser triangulation ) 是由 张永康 刘迎春 郭小军 李坚 单晓明 张驰 林超辉 于 2019-06-14 设计创作，主要内容包括：本发明的目的在于提出一种基于激光三角测量的监控叶片整体形变的方法和装置。通过监控叶片的三维形貌控制叶片冲击角度,最终达到叶片的冲击强化要求。本发明还公开了一种基于激光三角测量的监控叶片整体形变的装置,包括计算机控制系统,激光器电源,激光喷丸设备,透射镜,零件机器人,机器人控制系统,轮廓图像采集系统。本发明所述方法及装置能对各种薄壁复杂曲面的激光冲击强化形变进行处理,提高冲击强化效果。(It is an object of the invention to propose a kind of method and apparatus of monitoring blade entirety deformation based on laser triangulation.Three-dimensional appearance by monitoring blade controls blade percussion angle, is finally reached the shock peening requirement of blade.The device for the monitoring blade entirety deformation based on laser triangulation that the invention also discloses a kind of, including computer control system, laser power supply, laser peening apparatus, diaphotoscope, part robot, robot control system, contour images acquisition system.The method of the invention and device can be handled the laser impact intensified deformation of various thin-wall complicated curved surfaces, improve shock peening effect.)

1. a kind of method of the monitoring blade entirety deformation based on laser triangulation, which comprises the steps of:

Step 1: the form parameter of the thin-wall complicated blade of variable cross-section being inputted into computer control system, according to part shape and client It is required that the laser impact intensified parameter of setting and robot motion track；

Step 2: robot controls the incident angle of laser beam impact blade, and the laser beam that laser generates prescribed energy impacts leaf Piece surface, contour images acquisition system carry out real time monitoring and Image Acquisition to the pattern of blade, and the image information of acquisition is passed Enter computer；

Step 3: computer is according to the image information of acquisition, by big data mining analysis, choose new optimal incident angle and Laser energy size corrects robot motion profile and laser-impact parameter with this；

Step 4: repeating Step 2: three, until entire blade percussion is completed.

2. a kind of method of monitoring blade entirety deformation based on laser triangulation as described in claim 1, feature exist Be laser triangulation in: the contour images acquisition system, laser diode launches laser beam, by colimated light system with Certain angle focuses on testee surface, and laser scatters on testee surface, and the laser of scattering passes through lens It is converged, information is acquired by CCD camera.

3. such as a kind of described in any item devices of the monitoring blade entirety deformation based on laser triangulation of claim 1-2, It is characterized by comprising computer control system, laser power supply, laser peening apparatus, lens, part robot, robots Control system, contour images acquisition system, the computer control system are connect with the laser power supply, the laser electricity Source is connect with the machine light shot blasting equipment；The computer control is connect with the contour images acquisition system, the computer Control system is connect with the robot control system, and the robot control system is connect with the part robot.

4. a kind of device of monitoring blade entirety deformation based on laser triangulation as claimed in claim 3, feature exist In: the contour images acquisition system includes measurement laser, lens and linear array CCD camera, the light projected successively from measurement laser Beam, while being captured one by one by linear array CCD camera.

Technical field

The present invention relates to mechanical manufacturing fields, and in particular to a kind of monitoring blade entirety deformation based on laser triangulation Method and apparatus.

Background technique

Aero-engine is known as " flower of industry ".Engine blade is even more its core place, and aero-engine is typical High-precision, variable cross-section thin wall component, its quality directly determines the safety and reliability of aero-engine.In order to protect Card compressor normally works, and air-flow is avoided to separate, and reduces flow losses, and blade has certain torsion radian.It is strong in impact During change, need to change angle of attack to guarantee that strengthening effect reaches expected standard to blade everywhere, and in impact process, laser Blastic deformation amount can have an impact the impact effect of blade during impact, the safety to the pneumatic property and engine of blade Generation seriously affects.

Summary of the invention

It is an object of the invention to propose the method and dress of a kind of monitoring blade entirety deformation based on laser triangulation It sets, is particularly suitable for the surface treatment of variable cross-section thin wall complex structure part.

The technical solution adopted in the present invention: a method of the monitoring blade entirety deformation based on laser triangulation, Include the following steps:

Step 1: the form parameter of the thin-wall complicated blade of variable cross-section being inputted into computer control system, according to part shape and client It is required that the laser impact intensified parameter of setting and robot motion track；

Step 2: robot controls the incident angle of laser beam impact blade, and the laser beam that laser generates prescribed energy impacts leaf Piece surface, contour images acquisition system carry out real time monitoring and Image Acquisition to the pattern of blade, and the image information of acquisition is passed Enter to calculate；

Step 3: computer is according to the image information of acquisition, by big data mining analysis, choose new optimal incident angle and Laser energy size corrects robot motion profile and laser-impact parameter with this；

Step 4: repeating Step 2: three, until entire blade percussion is completed.

Preferably, the contour images acquisition system is laser triangulation, and laser diode launches laser beam, is passed through It crosses colimated light system and focuses on testee surface at an angle, laser scatters on testee surface, scattering Laser is converged by lens, acquires information by CCD camera.

A kind of device of the monitoring blade entirety deformation based on laser triangulation, including computer control system, laser Device power supply, laser peening apparatus, diaphotoscope, part robot, robot control system, contour images acquisition system, the meter It calculates machine control system to connect with the laser power supply, the laser power supply has sprayed equipment with the organ and connect；The meter The control of calculation machine is connect with the contour images acquisition system, and the computer control system and the robot control system connect It connects, the robot control system is connect with the part robot.

Preferably, the contour images acquisition system includes measurement laser, reflecting mirror and linear array CCD camera.Swash from measurement The light beam that light projects successively, while being captured one by one by linear array CCD camera.

Compared with prior art, the beneficial effects of the present invention are: (1) present invention uses laser triangulation real-time measurement The three-dimensional appearance of blade, laser triangulation structure is simple, measurement real-time is good.It is (2) of the invention in such a way that big data is excavated, The blade three-dimensional appearance data of real-time measurement are corresponding with robot motion track, robot motion track is adjusted in real time, is protected It demonstrate,proves blade and shock peening is received with best angle.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of the device of the monitoring blade entirety deformation based on laser triangulation of the present invention；

Fig. 2 is variable cross-section thin wall blade schematic diagram of the present invention；

Fig. 3 is different laser energy of the present invention to sample blastic deformation schematic diagram；

Fig. 4 is the schematic diagram of laser triangulation of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Technical solution of the present invention is further described below with reference to specific example.

Incorporated by reference to Fig. 1, a kind of device of the monitoring blade entirety deformation based on laser triangulation, including computer control System 1, laser power supply 2, laser peening apparatus 3, lens 6, part robot 7, robot control system 8, contour images are adopted Collecting system, computer control system 1 are connect with laser power supply 2, and laser power supply 2 is connect with machine light shot blasting equipment 3；Computer Control 1 is connect with contour images acquisition system, and computer control system 1 is connect with robot control system 8, control system, robot System 8 is connect with part robot 7, and contour images acquisition system includes measurement laser 4, lens 6 and linear array CCD camera 5.

A method of the monitoring blade entirety deformation based on laser triangulation includes the following steps:

Step 1: the form parameter of the thin-wall complicated blade of variable cross-section being inputted into computer control system, according to part shape and client It is required that the laser impact intensified parameter of setting and robot motion track, as shown in Figure 2；

Step 2: robot controls the incident angle of laser beam impact blade, and the laser beam that laser generates prescribed energy impacts leaf Piece surface, it is as shown in Figure 3 for blastic deformation of the different laser energy to sample；Pattern of the contour images acquisition system to blade Real time monitoring and Image Acquisition are carried out, the image information of acquisition is passed to computer.

Step 3: computer chooses new optimal incidence angle by big data mining analysis according to the image information of acquisition Degree and laser energy size, correct robot motion profile and laser-impact parameter with this.

Step 4: repeating Step 2: three, until entire blade percussion is completed.

Contour images acquisition system is laser triangulation, and principle is as shown in figure 4, laser diode launches laser Beam focuses on testee surface by colimated light system at an angle, and laser scatters on testee surface, dissipates The laser penetrated is converged by lens, acquires information by CCD camera.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.