Non-contact optical vision calibration method
A non-contact, optical technology, applied in the field of calibration, can solve the problems of calibration inaccuracy, difficulty in pin insertion, large deviation, etc., and achieve the effect of easy calibration, convenient operation and accurate calibration results
Pending Publication Date: 2020-11-17
ZHUHAI CITY GUANGHAOJIE PRECISION MACHINERY
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Problems solved by technology
The mechanical perforation positioning method has the following problems: due to the large deviation caused by the machining error, the calibration is inaccurate, and due to the cooperation between the shaft and the hole, it is difficult to insert the pin, and the overall calibration method is very inconvenient
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[0016] like figure 1 As shown, in this embodiment, a method for non-contact optical vision calibration, the automatic assembly equipment used in this method includes a control system, a clamping mechanism, a conveying mechanism, a camera module, an image sensor placement position, and a lens placement position The clamping mechanism, the conveying mechanism, and the photographing module are all connected with the control system signal, and the image sensor placement position and the lens placement position are all set on the conveying mechanism; the one The method for non-contact optical vision calibration includes the following steps:
[0017] a. The photographing module first takes pictures to identify the center of the center hole of the false lens clamped by the jaws of the clamping mechanism, and the control system processes and records the center position of the center hole of the false lens as a reference point;
[0018] b. Move the central hole of the image sensor pla...
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The invention discloses a non-contact optical vision calibration method, and aims to provide a non-contact optical vision calibration method which is convenient to operate, easy to calibrate, free from the influence of machining precision and more accurate in calibration result. The method comprises the following steps that a, a shooting module shoots and recognizes the center of a false lens center hole clamped by a clamping jaw of a clamping mechanism, and a control system processes and records the center position of the false lens center hole to serve as a reference point; b, the shooting module shoots the central hole of the image sensor placing position; c, the shooting module shoots a central hole of the lens placement position; and d, the control system calculates the assembly position between the image sensor and the lens according to the position of the central position of the image sensor relative to the center of the clamping jaw and the position of the central position of the lens relative to the center of the clamping jaw. The non-contact optical vision calibration method is applied to the technical field of non-contact optical vision calibration methods in automatic assembly equipment.
Description
technical field [0001] The invention relates to a calibration method, in particular to a non-contact optical vision calibration method, which is applied to the technical field of the non-contact optical vision calibration method in automatic assembly equipment. Background technique [0002] As the resolution of image sensors continues to increase and the size of single pixels decreases, the accuracy of relative positioning between the lens (lens) and the image sensor (sensor) is getting higher and higher, and the current traditional packaging equipment can no longer meet the requirements. It is necessary to pass the active calibration technology of AA (the full name is Active Alignment, which is a technology to determine the relative position in the assembly process of spare parts), which can correct the mechanical difference of each component and ensure the imaging quality of the camera and the product quality. consistency. [0003] The automatic assembly equipment using t...
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IPC IPC(8): G06T7/80
CPCG06T7/80
Inventor 廖昌钜涂赞温邓洪
Owner ZHUHAI CITY GUANGHAOJIE PRECISION MACHINERY