Visual identification and grabbing method of mechanical arms

The invention discloses a visual identification and grabbing method of mechanical arms. The method includes the following steps of (1) image collecting, wherein workpiece images are collected through a dual-camera system formed by two CCD visual sensors, and the images are converted into digital formats and transmitted into a computer memory, (2) image processing, wherein a processer conducts color recognition, image enhancement, edge sharpening and noise reduction on the images, conducts measurement on the length and area of workpieces, and finds out the coordinate position of the central point of the workpieces in the images, (3) coordinate transferring, wherein the coordinates of the CCD visual sensors are calibrated with the coordinates of the mechanical arms, so that the coordinate system of the CCD visual sensor can coincide with that of the mechanical arms, the coordinate position of the central point of the workpieces in the images is transmitted to a controller of the mechanical arms, and the mechanical arms are controlled by the controller to grab the workpieces. By means of the visual identification and grabbing method of the mechanical arms, the mechanical arms are made to more accurately grab the workpieces in the fast-paced production process, in other words, under the dual-camera system, even though the positions of the workpieces are slightly deviated, the mechanical arms can accurately grab the workpieces as well.