Cognex machine vision integrated system ensures 100% product inspection

  In daily life, have you ever encountered such a situation? You purchased a product from a company with a good reputation, but you were disappointed when you took it home. It could not be used or malfunctioned after a short period of time. This is because the company was conducting random inspections. When purchasing products, it is difficult to prevent all products with quality defects from being randomly inspected. Electronics companies have also been deeply troubled by this. How to achieve 100% product inspection has become the primary issue for enterprises. Cognex vision systems helped them completely solve this problem.

Each equipment can produce more than 10,000 pieces per day, and the product production speed is fast, with a maximum speed of 1,200 pieces per minute. And the quality requirements are very high, reaching +/-10u. With online equipment testing, manual inspections cannot be tracked at all times and can only be randomly inspected, which will result in a lot of unnecessary waste. And the probability of mold equipment damage is high. In this case, a vision system from Cognex was used.

Complete and powerful visual integration system

In terms of system integration, due to the rapid change of products in the stamping parts inspection project, the debugging of new products must be completed within 2 hours. To ensure normal production, the Cognex In-sight series was chosen, which is simple and fast to develop. Combining the characteristics of the stamping parts industry, a stamping parts inspection platform was developed to facilitate subsequent processing of statistical data. The inspection platform has functions such as automatically saving incorrect product pictures, automatically saving incorrect product data, and the interface displays the dimensions and trend charts of all tested products. Another feature of this project is the use of a telecentric lens to solve the problem of large depth of field for stamped parts.

After the system is integrated, all important dimensions of the product can be tested to determine whether pins are missing. The repeatability of system testing is 2u, which is within 10u compared with 3-dimensional testing, which is much higher than the customer’s testing needs.

good customer benefits

A senior imaging engineer said, “I have been using machine vision for 8 years, and the system is mainly used to control product quality. In traditional quality control inspection, product quality is mainly controlled through random inspections, and some intermittent quality abnormalities are It is difficult to control. Using machine vision can achieve 100% online inspection, which greatly improves the scope of quality control and can reduce or eliminate customer complaints about products. While controlling quality, it also saves costs, because machine vision can achieve 100% Through online inspection, product problems can be discovered immediately to reduce scrapping. At the same time, machine vision inspection data can also be used to reflect the wear and tear of production tools, and accessories can be replaced appropriately in advance to ensure product stability."

A senior imaging engineer from the Electronic Engineering Department said, "I started to contact Cognex in 2003. I never knew how to use programming proficiently. I deeply realized the powerful functions and easy-to-learn operations of the system. Especially in the connector industry, the products tested It is getting smaller and more sophisticated. The powerful functions and coverage of this system have greatly reduced our workload, but the quality of our products has been greatly improved. We trust Cognex."