Five applications of machine vision inspection technology in industrial automation

Five applications of machine vision inspection technology in industrial automation

describe

Machine vision detection technology is a new detection technology based on computer vision. In today's continuously developing industrial automation, machine vision technology has been more and more widely used in industry, and more and more recognized and favored by users. Therefore, people began to consider using a CCD camera to capture images and send them to a computer or a special image processing module. Through digital processing, the size, shape and color can be determined according to pixel distribution, brightness, color and other information. This method combines the rapidity and repeatability of computer processing with the highly intelligent and abstract ability of human vision, thus generating the concept of machine vision detection technology.

It is not difficult for us to find that its application scale is becoming more and more common. According to these categories, we can summarize and synthesize five major applications under industrial automation.

1. Visual guidance and positioning applications

Visual positioning requires that the machine vision system can quickly and accurately find the tested parts and confirm their positions. The loading and unloading use machine vision to locate and guide the robot arm to grasp accurately. In the field of semiconductor packaging, the equipment needs to adjust the pickup head according to the chip position information obtained by machine vision, accurately pick up the chip and bind it. This is the most basic application of visual positioning in the field of machine vision industry. In addition, in the semiconductor manufacturing field, the chip position information adjustment pickup head is very difficult to handle. Machine vision can solve this problem because it needs to accurately pick up chips and bind them. This is also the reason why visual positioning has become the most basic application in the machine vision industry.

2. Application of appearance defect detection

To detect whether the products on the production line have quality problems, this link is also the link that replaces the most labor. For example, in the medical field related to machine vision, its main detection includes size detection, bottle body appearance defect detection, bottle shoulder defect detection, bottle mouth detection, etc. With the development of modern industrial automation, machine vision inspection is widely used in various inspection, measurement and part identification, such as surface defect detection of new energy power batteries, electronic component identification, magnetic material appearance defect detection, bar code and character recognition on product packaging, etc. the common characteristics of such applications are continuous mass production and high requirements for appearance quality. With the improvement of economic level, machine vision inspection has been paid more and more attention. It can improve the production capacity of qualified products and scrap inferior products at the early stage of the production process, thus reducing waste and saving costs.

3. Application of high precision detection

Some products have high precision, reaching 0.01 ~ 0.02M or even u level, which cannot be detected by human eyes and must be completed by machine. The most typical cases are power battery burr detection and PCB circuit board detection. And medical glass bottle detection. The medical field is also one of the main application fields of machine vision.

4. Application of image recognition

Image recognition is to use machine vision to process, analyze and understand the image to identify the targets and objects in different modes. It can trace and collect data, and is widely used in new energy batteries, circuit boards, electronic components, hardware accessories, food, medicine and other fields. The most typical case is the identification of two-dimensional codes. Two dimensional code and bar code are very common bar codes in our life. In the production of goods, manufacturers store a lot of data in small two-dimensional codes, and manage and trace the products in this way. With the more and more extensive application of machine vision image recognition, the bar codes of various materials become very easy to be recognized, read and detected, thus improving the level of modernization, greatly improving the production efficiency, and gradually reducing the production cost.

5. Object sorting application

In the application of machine vision, the object sorting application is a link established after recognition and detection. The image is processed by the machine vision system, and the product sorting is realized by the use of the robot arm. In the past, on the production line, materials were manually placed at the designated place before the next process. Now, automatic equipment is used for material distribution, in which the machine vision system is used for product image capture, image analysis and output results, and then the corresponding materials are placed in fixed positions by robots, so as to realize the intelligent, modern and automatic industrial production. It is often used for food sorting, express active sorting, cotton fiber sorting, etc. saving labor, improving speed and improving product quality have become the only way for enterprises to survive in the current economic situation. The application of machine vision detection technology will help enterprises to remain invincible in the fierce competition.