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Imaging system and detection method for defects in mobile phone metal middle frame

A metal middle frame and imaging system technology, which is used in optical testing of flaws/defects, measuring devices, and material analysis by optical means, can solve problems such as difficult imaging, optimize shooting angles, improve detection efficiency, and improve imaging. effect of effect

Active Publication Date: 2021-07-20
CHANGZHOU MICROINTELLIGENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide a mobile phone metal middle frame defect imaging system, which can solve the problem of difficult imaging of the curved side of the middle frame of the mobile phone, and the difficulty of imaging the corners of the mobile phone middle frame.

Method used

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  • Imaging system and detection method for defects in mobile phone metal middle frame
  • Imaging system and detection method for defects in mobile phone metal middle frame
  • Imaging system and detection method for defects in mobile phone metal middle frame

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Embodiment 1）

[0073] See Figure 1 to Figure 5 In the present invention, the mobile phone metal middle frame defect imaging system includes a line array camera module 2 electrically connected to the control unit 1 and controlled by the control unit 1, an area array camera module 3, a position sensing module 4 and a device for carrying the product to be inspected and driving The carrying module 5 of the linear motion of the product to be inspected; the line array camera module 2 is used to scan the side of the product to be inspected that moves linearly with the carrying module 5, and the area array camera module 3 is used to scan the side of the product to be inspected The corner of inspection product is taken picture; Described line array camera module 2 comprises three line array cameras that lens is housed and three line light sources 21; One line light source 21 cooperates with a line array camera to take pictures; Three line array cameras The cameras are respectively an upper side line...

Embodiment 2）

[0117] In the mobile phone metal middle frame defect imaging system of the present invention, neither the carriage 7 nor the second linear drive device 8 is provided, nor is the rotary drive device 53 provided. Other technical characteristics are identical with embodiment 1.

[0118] The present invention uses the above-mentioned mobile phone metal middle frame defect imaging system to carry out the detection method, comprising the following steps:

[0119] S1. Loading: place the product to be inspected on the carrier module 5;

[0120] S2. Side view: the carrier module 5 carries the product to be inspected in a straight line. When the position sensing module 4 senses that the product to be inspected on the carrier platform 54 enters the starting end of the line scan, the upper side of the line array camera module 2 will The array camera 22, the middle side line array camera 23 and the lower side line array camera 24 simultaneously scan a side of the passing product to be ins...

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Abstract

The invention relates to a defect imaging system and detection method for a metal middle frame of a mobile phone, wherein the defect imaging system includes a line array camera module, an area array camera module, a position sensing module, and a The carrier module that inspects the product and drives the product to be inspected in a straight line; the line array camera module is used to scan the side of the product to be inspected that moves linearly with the carrier module, and the area array camera module is used to scan the side of the product to be inspected on the carrier module The corner of the product is used to collect pictures; the position sensing module is used to transmit the sensed position signal to the control unit; it also includes a background computing center connected to the control unit in communication, and the background computing center is used to receive pictures from the control unit The resulting photos and display the test results. The invention can solve the problem of imaging the curved side of the middle frame of the mobile phone, the problem of imaging blind spots in the middle frame of the mobile phone, and the problem of difficulty in imaging the special-shaped corners of the middle frame.

Description

technical field [0001] The invention relates to the field of optical detection of appearance defects, in particular to an imaging system and detection method for defects in a metal middle frame of a mobile phone. Background technique [0002] With the continuous improvement of living standards, smart phones have gradually become popular in everyone's hands. Metal mobile phones are welcomed by everyone because of their high-quality texture; among them, the metal mobile phone middle frame is an important component. After a series of production processes, it inevitably causes surface appearance defects, which will definitely affect Mobile phone product quality. Therefore, appearance inspection is an essential link. [0003] Due to the diversified development of mobile phones, many 2.5D and 3D curved screen mobile phones have appeared. The middle frames of these mobile phones often have irregular curved surfaces such as radians. In the appearance defect detection of the midd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/01G01N21/95
CPCG01N21/01G01N21/95
Inventor 江家濠陈翠红刘迎霞陈贻清李登甲
Owner CHANGZHOU MICROINTELLIGENCE CO LTD
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