Optical imaging system for electronic component pin positioning

Abstract

The invention relates to an optical imaging system for electronic component pin positioning. The system comprises a CCD camera and a light source, wherein the light source comprises a first arc sub light source and a second arc sub light source, the first arc sub light source and the second arc sub light source are oppositely arranged at an interval to form a channel between the two for access ofelectronic components, the first arc sub light source and the second arc sub light source are further respectively provided with first light shading cloth and second light shading cloth in their respective surrounding areas, and the CCD camera is arranged below the channel between the first light shading cloth and the second light shading cloth. The system is advantaged in that the light source isdesigned to be two semi-arc structures, the light shading cloth is further set, not only can imaging quality be guaranteed, but also motion speed requirements through the light source in a productionline mode after grasping the components by a reclaimer can be satisfied, and mounting and dismounting are convenient.

Description

technical field [0001] The invention relates to electronic component plug-in technology, and more specifically, relates to an optical imaging system for electronic component lead positioning. Background technique [0002] With the development of high technology and the improvement of people's living standards, the demand for compact and high-performance electronic products in the consumer market is increasing. In addition, today's programmable integrated circuits have many pins, are highly functional, and many are packaged in innovative ways. Since most electronic components have a large number of pins and small dimensions, how to quickly and accurately locate the pins is directly related to the accuracy and efficiency of the automatic plug-in machine. [0003] In the pin positioning process, if an ordinary ring light source is used, the imaging quality of the pin can be guaranteed, but when the pin image is collected, the pick-up mechanism needs to grab the component and i...

AI Technical Summary

Problems solved by technology

[0003] In the pin positioning process, if an ordinary ring light source is used, the imaging quality of the pin can be guaranteed, but when the pin image is collected, the pick-up mechanism needs to grab the component and insert it from above or below the light source to the specified height in the middle of the light source. After shooting and positioning, the retrieving mechanism needs to move the components out of the light source first, and then move to the PCB insertion position. This series of actions will reduce the efficiency of the entire system; if an ordinary strip light source is used, the retrieving mechanism can ensure that the After the component passes between the two strip light sources in an assembly line, the system efficiency is improved, but the imaging quality cannot be guaranteed, which makes positioning analysis difficult

Neither of the above two situations can satisfy the fast and accurate requirements of automatic plug-in at the same time, and cannot adapt to the production requirements of automatic plug-in machines.

Images