Automatic lift guide rail straightening method based on expert database technology

The invention discloses an automatic lift guide rail straightening method based on the expert database technology. The automatic lift guide rail straightening method based on the expert database technology comprises the steps that firstly, manual straightening success experience in the early stage is utilized to constitute an expert database; secondly, straightness information of a guide rail is collected, fitting of a straightness curve is conducted according to the collected data, data analysis is conducted on the fitted curve in a extreme value point traversal method so as to select press points as reference points; thirdly, unqualified points are found according to the guide rail straightness qualification index, and the final press point is determined from the press point reference points; fourthly, after the press point is readjusted and determined, according to the principle of span maximization, the positions of the supporting points are symmetrically determined on the two sides of the press point; an