Metal plate surface detector

A detector and metal plate technology, used in instruments, measuring devices, optical testing flaws/defects, etc., can solve problems such as inaccurate detection results, scratches on the measured surface, and being susceptible to subjective factors, and achieve stable light source. , the effect of avoiding scratches and avoiding the influence of measurement results

Pending Publication Date: 2016-09-21
CHENGDU BEISEN WEIREN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface quality of existing metal plates such as large power transformer coils, flat wires, radios, etc. has very high requirements, but the original detection method using manual visual inspection or using a dial indicator plus a control needle is not only susceptible to subjective factors impact, and may draw new scratches on the measured surface
However, the existing detection device is also easily affected by surrounding stray light during the detection process, resulting in inaccurate final detection results.

Method used

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Embodiment 1

[0018] Such as figure 1 As shown, the present invention includes a PC terminal 1, and an image acquisition card 2 is also connected to the PC terminal 1, and the image acquisition card 2 is connected to a workpiece detection locator 4, a CCD camera 5 and a laser 6 at the same time, and the workpiece detection locator 4 , CCD camera 5 and the below of laser device 6 also arrange main conveyer belt 3, also arrange laser sensor 7 at the entrance of main conveyer belt 3, also set auxiliary conveyer belt 9 on the side of main conveyer belt 3, between main conveyer belt 3 and auxiliary conveyer belt 9 It is flexibly connected through the connecting piece 8; a pinhole filter 10 is provided at the bottom of the laser 6, and a beam expander 11 and a collimating mirror 12 are sequentially provided at the bottom of the pinhole filter 10.

[0019] This device uses a CCD camera to convert the detected target into an image signal, transmits it to a special image acquisition card, converts i...

Embodiment 2

[0021] This embodiment is preferably as follows on the basis of Embodiment 1: the width of the auxiliary conveyor belt 9 is 1 / 3 of the width of the main conveyor belt 3 . The width of the auxiliary conveyor belt is designed to avoid being too wide, in order to avoid the width of the main conveyor belt and the auxiliary conveyor belt being too wide, the laser cannot achieve the best lighting effect for a large area, and the CCD camera cannot capture the best angle, resulting in inaccurate detection results in the later stage. precise.

[0022] The CCD camera 5 is located between the workpiece detection locator 4 and the laser 6, and the laser 6, the CCD camera 5 and the workpiece detection locator 4 are arranged sequentially from the entrance of the main conveyor belt 3 and are located on a straight line. The laser is located at the entrance of the main conveyor belt, which can better illuminate the incoming objects, so that the CCD camera behind can take clear pictures of the ...

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Abstract

The invention discloses a metal plate surface detector, comprising a PC terminal which is also in connection with an image acquisition card; the image acquisition card is also in connection with a workpiece detection positioner, a CCD camera and a laser. A main conveyor belt is also arranged under the workpiece detection positioned, the CCD camera and the laser. The inlet of the main conveyor belt is also provided with a laser sensor; the side surface of the main conveyor belt is also provided with an auxiliary conveyor belt; the main conveyor belt and the auxiliary conveyor belt are in movable connection through a connecting piece. The bottom of the laser is provided with a pin hole filter, the bottom of which is successively provided with a beam expanding lens and a collimating lens. The metal plate surface detector can be adjusted according to the width of a metal plate, allowing the metal plate to move on an optimal path and to perform visual detection; in addition, the detection process can not damage the metal plate, prevent external stray light from influencing detection results, and guarantee final detection result accuracy.

Description

technical field [0001] The invention relates to the field of machine vision, in particular to a metal plate surface detector. Background technique [0002] In some dangerous working environments that are not suitable for manual work or where artificial vision is difficult to meet the requirements, machine vision is often used to replace artificial vision; at the same time, in the process of mass industrial production, the efficiency and accuracy of using artificial vision to check product quality is low. , the use of machine vision inspection methods can greatly improve production efficiency and production automation. Moreover, machine vision is easy to realize information integration, and it is the basic technology to realize computer integrated manufacturing. It is precisely because the machine vision system can quickly obtain a large amount of information, and is easy to automatically process, and is also easy to integrate with design information and processing control i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/26G01N21/95
CPCG01B11/00G01B11/26G01N21/95
Inventor 张楠魏艾
Owner CHENGDU BEISEN WEIREN TECH CO LTD
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