Battery piece silk-screen printing alignment method and system

The invention provides a cell silk-screen printing alignment method and system, and relates to the technical field of solar cell silk-screen printing. The method comprises the following steps: firstly, acquiring a calibration plate coordinate system, then calculating the coordinate of the rotation center of a UVW platform in the calibration plate coordinate system, then calibrating a screen printing plate to obtain the coordinate of the center point of the screen printing plate in the calibration plate coordinate system and the deviation angle of the screen printing plate in the calibration plate coordinate system, then loading a battery piece, calibrating the battery piece, and finally, loading the battery piece. The coordinates of the central point of the battery piece in the calibration plate coordinate system and the deviation angle of the battery piece in the calibration plate coordinate system are obtained; and finally, according to the coordinate of the rotation center of the UVW platform under the cal