Typical applications of machine vision

In the process of modern automated production, people will machine vision system is widely used in electronics, SMT, semiconductor, medicine/medical, tobacco, printing, food/beverage, automobile, lithium, photovoltaic and other industries. The application projects include assembly positioning, product quality inspection, product identification, product size measurement and so on.

Visual applications in the electronics industry

The rapid development of electronic industry has brought great opportunities and challenges to machine vision. Machine vision technology has continuously penetrated into all links of the industrial chain of the electronics industry, from the design and manufacturing of electronic products to product quality inspection, reinspection, packaging, etc., which has injected new strength into the development of the electronics industry.

The test contents include:

Appearance detection of capacitance and inductance; AA area positioning of LCD screen, mobile phone card slot positioning, mobile phone appearance defect detection, mobile phone case LOGO detection, etc.

Visual applications for SMT industry

SMT(Surface Mounted Technology) is one of the most commonly used technologies in the electronic assembly industry. Machine vision is mainly used for positioning and quality inspection of SMT production lines, including alignment of steel mesh and PCB in printing machine, 3D scan of solder paste, positioning of components of the SMT machine, AOI after printing, AOI after SMT, AOI after furnace, etc.

The test contents include:

Glue detection, positive and negative component judgment, component assembly and positioning, PCB board solder reinspection (virtual welding, more tin, less tin, etc.), OCR(optical character recognition), surface two-dimensional code recognition, etc.

Vision applications for the semiconductor industry

The application of machine vision in the semiconductor industry has been very common, involving semiconductor appearance defects, size, quantity, flatness, spacing, positioning, solder joint quality, bending and other tests.

The test contents include:

Metal bar, wafer size measurement, wafer chip positioning, wafer cutting positioning, appearance, foreign body defect detection, IC pin flatness detection, SMD packaging detection, character recognition, etc.

Vision applications for the pharmaceutical/medical industry

The wide applicability of machine vision technology in the pharmaceutical industry has won a broader market space for it.

The detection contents include: filling positioning of liquid preparations, unqualified capsule size detection, impurities and cap detection in bottle body, capsule dirt detection, barcode detection of pharmaceutical products outer packaging, outer packaging appearance detection, full carton detection of outer packaging, etc.

Visual applications for the tobacco industry

Cigarette production speed is very fast, in the production process there are many unqualified products. It is necessary to find unqualified products and eliminate them through machine vision in time.

The test contents include:

Detection of tobacco raw materials, size measurement of filter cigarette holder, defect detection of rolled paper packaging, two-dimensional code detection of cigarette box surface, deformation detection of cigarette bag, cigarette box count, etc.

Visual applications in the printing industry

Printing industry is one of the common application industries of machine vision. Machine vision system can quickly and accurately detect all kinds of defects in printed matter, improve product quality and production efficiency, reduce enterprise costs. The printed matter tested has various forms, which can be divided into paper, plastic and metal plate from the printing material type; From the printed form can be divided into crimped material and sheet products.

The test contents include:

Material DEFECT DETECTION (SUCH AS HOLES, FOREIGN bodies, ETC.), PRINTING DEFECT DETECTION (such as FLYING ink, knife wire, rubbing plate, OVERprinting, ETC.), COLOR DEFECT detection (such as light printing, color deviation, white, etc.).

Visual applications for the food/beverage industry

In recent years, in the food/beverage high-speed production line, manual detection has been unable to meet the requirements of enterprises for food/beverage quality detection, the rapid development of machine vision has greatly improved the level of food/beverage industry detection technology. As a series of application problems are solved, the automation degree of food/beverage production based on machine vision applications is significantly improved.

The test contents include:

Quality inspection of glass bottles, such as bottle mouth breakage, bottle body, bottle bottom foreign body detection. Bottle counting, beverage filling positioning, filling liquid level detection, foreign body detection after filling, label position and spray code identification, etc.

Visual applications for the automotive industry

Due to the increase of labor costs, the shortage of human resources and the requirements of the automobile industry for high efficiency, high precision, high quality and high intelligence of the production line, machine vision technology has been widely used in the automobile industry, which can not only greatly improve the work efficiency, but also improve the quality of products.

The test contents include:

Auto hardware size measurement, appearance defect detection, parts bar code reading, sheet metal solder joint detection, auto parts assembly positioning, auto lampshade, buckle and other character recognition, appearance detection, panel identification detection, etc.

Visual application in lithium industry

In recent years, the country has vigorously promoted the development of new energy, and the lithium battery industry has developed rapidly. In the production process of lithium battery electrode piece, due to the coating machine, press machine causes negative electrode foil, dark spot, bright spot, material drop and other defects. The use of machine vision detection instead of manual selection of defective products, can achieve automatic detection of pole pieces, to ensure the safety of products.

The test contents include:

Coating appearance inspection, pole ear welding positioning, size measurement, crease detection, welding explosion detection, battery surface character recognition, finished product appearance inspection, etc.

Vision applications in the photovoltaic industry

With the increase of labor cost, in order to ensure the quality of products and avoid quality problems caused by many human factors, in the solar panel manufacturing process, from the front end to the back end, any one link error, will affect the power generation efficiency of solar panel finished products, such as secondary pollution and fragmentation. It is the development trend of photovoltaic manufacturing technology to use machine vision detection technology instead of manual to detect and sort silicon wafers and solar cells.

The test contents include:

Solar CELL TINNING AND SIZE MEASUREMENT, SOLAR panel welding positioning, welding surface dirt detection, cell defects detection (crack, impurity, gap, edge fracture, grid line fracture, paste stains, color deviation), etc.