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AOI detection method and system

An inspection system and post-inspection technology, applied in measuring devices, optical testing for flaws/defects, conveyor objects, etc., can solve problems such as low AOI inspection efficiency, improve AOI inspection efficiency, simplify operation difficulty, and facilitate operation proficiency Effect

Inactive Publication Date: 2019-08-23
深圳明阳电路科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the AOI system can be used to realize automatic visual inspection, in the existing process, it is still necessary to manually participate in the AOI inspection process of the PCB, and the staff is required to complete the PCB loading and unloading operations, resulting in the existing AOI inspection efficiency. Low, therefore, there is an urgent need to improve this technology

Method used

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Experimental program
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Embodiment 1

[0040] In this example, refer to figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the AOI detection system; the AOI detection system includes the first feeding mechanism, the first AOI detection mechanism, the first unloading mechanism, the turning mechanism, the second feeding mechanism, and the second AOI Detection mechanism and second feeding mechanism;

[0041] The first positioning device is used to fix the circuit board (such as PCB printed circuit board, etc.) to the first preset position;

[0042] The first feeding mechanism is used to transport the circuit board from the first preset position to the detection position of the first AOI detection mechanism; since the AOI detection mechanism generally uses a camera to obtain the image of the circuit board, and performs subsequent detection according to the acquired image Therefore, the position where the camera can capture the circuit board in the AOI detection mechanism can be used as the d...

Embodiment 2

[0067] Provide embodiment 2 based on embodiment 1, embodiment 2 provides a kind of AOI detection method, refer to figure 2 , figure 2 It is a schematic flow chart of an embodiment of the AOI detection method; including the following steps performed in sequence:

[0068] The first positioning step: fixing the circuit board to the first preset position to realize the positioning of the circuit board, and the first positioning device can be used to complete the first positioning step;

[0069] The first AOI detection step: perform the first AOI detection on one side of the positioned circuit board, and use the first AOI detection mechanism to complete the first AOI detection step;

[0070] Flipping step: Flip the circuit board after the first AOI inspection to the other side of the circuit board, and the flipping mechanism can be used to realize the flipping step;

[0071] The second positioning step: fixing the flipped circuit board to the second preset position to position ...

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Abstract

The invention discloses an AOI detection method and system. The AOI detection system comprises a first positioning device, a first feed mechanism, a first AOI detection mechanism, a first blanking mechanism, an overturning mechanism, a second positioning device, a second feed mechanism, a second AOI detection mechanism and a second blanking mechanism which are arranged in order; the AOI detectionis performed on two surfaces of a circuit board in order, thereby realizing the assembly line AOI detection way; due to the work division, the job difficulty is simplified, the job degree of proficiency is easy to improve, and partial internal time is converted into external time, the AOI detection efficiency is effectively improved, and the maximum capacity is improved. The technical problem thatthe AOD detection efficiency is low in the prior art is overcome; and the AOI detection method effectively improves the AOI detection efficiency through the assembly line type AOI detection flow.

Description

technical field [0001] The invention relates to the field of circuit boards, in particular to an AOI detection method and system. Background technique [0002] In the early PCB production, the inspection was mainly completed by manual visual inspection combined with electrical inspection. With the development of electronic technology, the PCB wiring density continues to increase, the difficulty of manual visual inspection increases, and the false positive rate increases. Health damage is greater, electrical inspection programming is more cumbersome and costly, and certain types of defects cannot be detected, so AOI automatic optical inspection technology is more and more used in PCB manufacturing. [0003] AOI (Automated Optical Inspection) inspection, also known as automatic optical inspection technology, also known as machine vision inspection technology or automatic visual inspection, is a device based on optical principles to detect common defects encountered in producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/95B65G47/90
CPCB65G47/90G01N21/01G01N21/95
Inventor 许宗琛孙文兵
Owner 深圳明阳电路科技股份有限公司
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