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Method for visually identifying mold repair state based on double-CCD computer

A dual vision and mold technology, applied in the field of metal material processing, can solve the problems of short mold life, rising, and low manufacturing precision

Inactive Publication Date: 2017-01-04
JIANGSU TONGMING AUTO LAMP
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Problems solved by technology

[0002] Although my country's mold production has developed rapidly, there is still a big gap compared with foreign advanced levels, mainly in the aspects of long manufacturing cycle, low manufacturing precision, and short mold life. Among them, the problem of short mold life is particularly prominent, which directly leads to resources Waste and rising production costs

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  • Method for visually identifying mold repair state based on double-CCD computer
  • Method for visually identifying mold repair state based on double-CCD computer

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example

[0018] Example: A mold repair for auto parts

[0019] Calibrate the vision system before repairing, use the developed MATLAB calibration toolbox to read the different angle images of the calibration board collected by the CCD, click "extract corner point" on the main control interface of the calibration toolbox, and determine the starting point position and X, In the direction of the Y axis, the corner points of each image are extracted. After extracting the corner points of all images in sequence, click "Calibrate" to calibrate the camera. After several iterations, the program will finally get the internal and external parameters of the camera. Import the obtained camera parameters into the computer. Use the calibrated coaxial CCD to detect the damaged mold, extract the crack image in front of the laser melting area, and perform image processing such as small window processing, filter denoising, image enhancement, morphological processing, edge extraction, and centerline ext...

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Abstract

The invention belongs to the field of metal material machining and relates to a laser processing state identifying method for a mold material, in particular to a method for visually identifying the mold repair state based on a double-CCD computer. A set of front vision system is introduced based on coaxial monitoring, pre-welding planning of a mold repair area is conducted by utilizing the advantage of coaxial vision, and meanwhile the welding process and a periphery area can be monitored; the contact angle of a welding wire and a crack area as well as the melting drop transition information and groove information of the welding wire are monitored through front vision, the depth of fusion and certain three-dimension information also can be extracted through double visions, a laser mold repair state identification model is built through the extracted characteristic information, and the quality of a mold in the repair process is monitored in real time. By means of the technology, automation and intellectualization of repairing of the low-cost small-power laser mold can be facilitated, the repairing quality and efficiency of the mold are improved, and good application prospects are achieved.

Description

technical field [0001] The invention belongs to the field of metal material processing, and relates to a state recognition method for laser processing of mold materials, in particular to a method for visually recognizing the repair state of a mold based on dual CCD computers. Background technique [0002] Although my country's mold production has developed rapidly, there is still a big gap compared with foreign advanced levels, mainly in the aspects of long manufacturing cycle, low manufacturing precision, and short mold life. Among them, the problem of short mold life is particularly prominent, which directly leads to resources Waste and rising production costs. Therefore, modern laser technology is used to strengthen and repair the mold to avoid premature failure and prolong the service life of the mold. Thereby recovering the unnecessary loss of production will greatly promote the development of the public industry and the national economy, and have significant economic a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/70
CPCB23K26/702
Inventor 刘立君姚纪荣蒋裕
Owner JIANGSU TONGMING AUTO LAMP
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