A kind of automatic gluing system and gluing method thereof

Abstract

Provided are an automatic gluing method and system. The method comprises the following steps: S100 obtaining transformation constants of the pixel coordinates and machinery coordinates of a target object by using a machine vision unit; S200 calibrating the position of a needle by using a needle calibration unit, and setting an original needle gluing point; and S300 registering a gluing visual image by using a glue line plotting unit to plot the path coordinates of a glue line. The above-mentioned automatic gluing method and system are used for accurately gluing a semi-finished product, and achieve automatic gluing and curing for an active alignment optical product.

Description

technical field [0001] The invention relates to a gluing system, in particular to an automatic gluing system controlled by machine vision and a gluing method thereof. Background technique [0002] In the mobile phone camera module (CCM) industry, optical products are developing towards miniaturization, light weight and high precision, and the quality of optical devices is becoming more and more strictly controlled. As the pixels of mobile phone modules continue to increase, the light sensitivity is also required to continue to increase. The market is increasingly pursuing mobile phones that capture high-definition images. In the common manual production mode, the assembly of the mobile phone camera module is to manually adjust the positions of the lens motor module (VCM) and the photosensitive chip (SENSOR) in the camera module, so that the lenses installed in the lens assembly, The geometric optical axis center of optical lenses such as optical filters is aligned with the ...

AI Technical Summary

Problems solved by technology

In the common manual production mode, the assembly of the mobile phone camera module is to manually adjust the positions of the lens motor module (VCM) and the photosensitive chip (SENSOR) in the camera module, so that the lenses installed in the lens assembly, The geometric optical axis center of optical lenses such as optical filters is aligned with the center of the photosensitive element of the image module. However, due to operational errors, the lens and photosensitive chip may cause the optical center of such axisymmetric optical components to appear when the system is assembled. Offset, there are positional accuracy deviations such as tilt (Tilt) and offset (Shift) between the lens and the photosensitive chip, which have a serious impact on the imaging quality of the module, resulting in a continuous decline in product yield

[0003] At present, the packaging process (COB) of the mobile phone camera module and related optical components industry generally adopts the lens mount attachment (H / A) to fix the finished product, and the lens mount attachment adopts the gel direct attachment In this way, the semi-finished lens motor module is directly attached to the semi-finished photosensitive chip, and it is often difficult to accurately align the lens assembly with the photosensitive chip in direct attachment through manual operations.

With the continuous improvement of the pixels of mobile phone camera modules, the light sensitivity of the photosensitive chip continues to increase. The offset of the optical center and the offset between the lens and the photosensitive chip have a serious impact on the imaging quality of the module, resulting in product failure. The yield rate continues to decline, and the method of direct attachment through H / A is gradually unsuitable

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