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Method for identifying direction of PCB

A PCB board and identification method technology, applied in image data processing, instruments, calculations, etc., can solve the problems of affecting processing efficiency, difficulty in distinguishing the positive and negative directions of PCB boards and front and rear directions, and defects, and achieve the effect of avoiding defective products

Active Publication Date: 2021-07-16
HUIZHOU CHENGTAI AUTOMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The design of the PCB is almost rectangular, which is symmetrical, which makes it difficult to distinguish the positive and negative directions and the front and rear directions of the PCB board. As a result, the PCB board is transported to the processing device in the reverse direction or in the forward and reverse direction, and the processing device cannot process the PCB board due to the wrong direction of the PCB board, which affects the processing efficiency, or causes the processing device to process the PCB board in the wrong direction. The yield rate of products affected by defective products

Method used

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Embodiment Construction

[0030] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below in conjunction with the embodiments.

[0031] A method for identifying the direction of a PCB board, comprising the steps of:

[0032] Pre-processing: According to the positive and negative directions of the PCB board and the front and rear directions, a mark that can identify the positive and negative directions and the front and rear directions of the PCB board is set on the PCB board, and the mark is set on the left side of the centerline of the length direction of the PCB board Or on the right side, the mark is a non-centrosymmetric figure arranged on the PCB, and the shape of the centrosymmetric figure is recorded in the X-Ray detection device as a standard figure;

[0033] Among them, the positive and negative directions of the PCB board refer to the orientation of the upper surface and the lower surface of the PCB board; the front ...

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PUM

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Abstract

The invention relates to a method for identifying the direction of a PCB, which belongs to the field of PCB processing. The method comprises the following steps: pretreatment, wherein a mark is arranged on the PCB; conveying of the PCB, wherein the PCB provided with the marks is placed on a conveying mechanism to be conveyed, the conveying mechanism drives the PCB to move along the conveying path of the PCB, and the long edge of the PCB coincides with the edge of the conveying path; and direction identification, wherein the direction identification comprises the following steps: S1, detecting a specific range of a conveying path by using an X-Ray detection device; S2, judging whether a mark is detected or not, judging that the direction of the PCB is wrong if the mark is not detected, and entering step S3 if the mark is detected; S3, judging whether the detected shape of the mark can coincide with the standard pattern or not, and if not, judging that the direction of the PCB is wrong; and if the detected shape of the mark can coincide with the standard pattern, judging that the direction of the PCB is correct. According to the invention, the direction of the PCB can be quickly identified.

Description

technical field [0001] The invention relates to the field of PCB processing, in particular to a method for identifying the direction of a PCB board. Background technique [0002] The design of the PCB is almost rectangular, which is symmetrical, which makes it difficult to distinguish the positive and negative directions and the front and rear directions of the PCB board. As a result, the PCB board is transported to the processing device in the reverse direction or in the forward and reverse direction, and the processing device cannot process the PCB board due to the wrong direction of the PCB board, which affects the processing efficiency, or causes the processing device to process the PCB board in the wrong direction. The occurrence of defective products affects the yield rate of the product. Contents of the invention [0003] Based on this, it is necessary to provide a method for identifying the direction of the PCB, including the following steps: [0004] Pre-process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/73
CPCG06T7/73G06T2207/10116G06T2207/30141G06T7/00
Inventor 罗冬何茂水
Owner HUIZHOU CHENGTAI AUTOMATION TECH CO LTD