The application of machine vision technology in the field of industrial product quality inspection in China has become more and more widespread, especially in the dimension measurement and appearance defect inspection of products, which has provoked the beam.
The so-called "machine vision" is to use the machine instead of the human eye to make measurements and judgments. The machine vision system is equivalent to human eyes, and the "eyes" judge the situation by controlling the program by sending the "seen" image to the control chip. A typical machine vision system includes a light source, a lens, a camera, an image processing unit (or image capture card), image processing software, a monitor, a communication / input output unit, and the like.
The high accuracy of machine vision system detection, can quickly get a lot of information and automatically processed, therefore, this technology in the field of industrial testing is widely used. In view of the traditional labor-intensive inspection mode, the machine vision system can replace a large number of inspection workers and upgrade the inspection mode of "human eye + simple tool" to the automatic inspection result of high precision and quickness.
As a well-known non-standard custom testing equipment suppliers, Beijing Bang State Instrument Technology Co., Ltd. will be skilled in the use of this technology in the production line of industrial products, accurate measurement of the size of large quantities of products, the appearance of defects to test screening, will Qualified products and non-conforming products strictly distinguish.
The state apparatus has made a series of important achievements in the field of machine vision technology, developed a large number of detection instruments and solutions, the following to name a few examples:
1, NdFeB permanent magnet products comprehensive testing equipment: special detection of various types of small neodymium iron boron magnetic material size and appearance (Note: NdFeB material is an important category of rare earth materials, one of its applications is to use In the manufacture of a wide range of magnetic conductors, including a variety of mobile phone parts and materials, such as speakers, receivers, handsets, vibration motors, mobile phone cameras, headphones, etc.). The machine uses machine vision technology to rapidly measure the size of NdFeB parts, detect defects in appearance, and classify qualified and unqualified products. At present, one such device can replace 10 to 20 quality inspection workers, and the maintenance cost is extremely low.
In addition, the simple adjustment of the testing equipment can be generally applied to small parts and sheet metal workpiece size and appearance of a comprehensive test. For NdFeB materials and other sheet materials manufacturers, the device brings good news about the quality inspection of its product line, which is a high-end equipment to fill the gaps in the industry.
2, carbide blade / bar rapid test program: Both programs are applied machine vision technology, rapid detection of alloy blade size tolerances and geometric tolerances, a variety of sizes and appearance of the bar, and automatic sorting And packaging. The whole equipment is not wearing parts, maintenance costs are very low.
3, textile machinery bearings rapid sorting equipment: from the shell measuring sorting equipment and spindle measuring sorting equipment, the use of machine vision technology and non-contact optical measurement, rapid detection of the upper roller bearing shell and mandrel, and automatic selected. Shell part of the main use of three-point principle of caliper to achieve the diameter size and shape of the tolerance test; the spindle part of the main application of the shadow projection principle test to achieve the size and shape of the tolerance test.
4, the automatic detection of rail wheel size equipment: State Railway equipment developed by the wheel automatic detection equipment for a variety of specifications for the measurement of the size of the train wheel. The product uses a number of advanced technologies such as machine vision, laser triangulation ranging, motion control, etc., with high precision, high reliability, easy to operate features. Its technical indicators are much higher than the relevant standards of the Ministry of Railways.
5, automatic valve size detection equipment: The program uses the line of machine vision technology, the use of shadow projection principle test valve axial cross-sectional size. Light curtain sensor along the valve axial movement, by scanning the valve shape, get the valve axial and radial dimensions; make the valve rotation, through the light curtain sensor radial runout data; and automatically determine eligibility.
6, rapid detection of bullet equipment: This equipment for defense units for a comprehensive, reflects the state of the machine vision technology in the field of use of the degree of proficiency: the use of machine vision and laser testing technology, automatic and rapid detection of shell size and appearance defects, detection Indicators have 16 small items, all integrated in one device, the detection efficiency reached 65 per minute, and can automatically sub-qualified and non-conforming products.
There are many more applications of the state apparatus in the field of machine vision. It is precisely because of the integrated use of technologies such as machine vision, electronic software and virtual instruments that the state apparatus has diversified characteristics in innovation and R & D. In addition, Size appearance, but also involves mechanics, electricity, temperature, acoustic vibration, sealing and many other aspects.
At present, the testing equipment suppliers represented by the State Instruments are applying machine vision technology to the production testing of various kinds of products in manufacturing industry, especially in dimension measurement and appearance defect inspection. This technology has occupied the mainstream, And still continue to develop in depth.
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