Double-end pin and plastic package body visual detection system after electronic component package

Abstract

The invention discloses a double-end pin and plastic package body visual detection system after electronic component package. The system comprises a camera with lens and a light source. The camera with lens is transversely arranged on a work table. The light source is arranged on the upper end of a place in front of the lens. A beam splitting module is arranged below the light source. A 3D mirror seat is arranged just above the beam splitting module. The light source is located between the 3D mirror seat and the beam splitting module. A hole is arranged in the middle of the top of the 3D mirror seat. 45-degree reflectors are respectively arranged on the side walls around the hole. Two products to be tested are vertically placed down from the hole in the middle of the 3D mirror seat. Side images around two products to be tested are respectively reflected by the reflectors, go vertically downward, income to the beam splitting module, and are finally collected by the lens. According to the invention, the telecentric lens is used to solve the problem of image distortion caused by the detection of two products; a 45-degree ophthalmic lens is used to replace a 43.5-degree ophthalmic lens in the hole of the 3D mirror seat; and an observed image is the actual situation of a product.

Description

technical field [0001] The invention mainly relates to the field of electronic component detection, in particular to a visual inspection system for double-headed pins and plastic packages after electronic components are packaged, which is used to detect the size of pins of MBS / SMA / SOD products and surface defects of plastic packages. Background technique [0002] The existing technology is to observe the bottom surface and four sides of the product through a specially designed 3D module. The 3D module is composed of a 3D mirror base, a combined light source, a camera, and a lens. The software triggers the light source to be turned on, captures pictures, processes the images, and feeds back the results. [0003] The existing technology can only detect a single product at a time, and the efficiency cannot be improved; and the pins are observed through the left and right lenses, and the three-dimensional information (standing degree) of the pins is calculated according to the le...

AI Technical Summary

Problems solved by technology

[0003] The existing technology can only detect a single product at a time, and the efficiency cannot be improved; and the pins are observed through the left and right lenses, and the three-dimensional information (standing degree) of the pins is calculated according to the length of the pins and the angle of the mirror in the intermediate image (2D) , it is not easy to observe directly

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