A new method for repairing the guide rail of B2152 planer

1.Basic situation before and after the repair of the B2152 planer guide. The B2152 planer is the old equipment of our factory. Since the installation and use, although the repair has been repeated many times, the accuracy of the guide rail pair has never been completely restored, and the guide rail wear and deformation is serious. The central part of the guide rail is recessed more than 0.5mm, and the horizontal direction of the guide rail is also greatly curved. The machine is a large-scale machine with a bed length of 6m and a work bench length of 3m. For the repair of such a large-sized guide rail, how to repair the accuracy of the guide rail in a short time is a problem without a dedicated rig. In response to this problem, the machining method was used instead of grinding and scraping, and the guide rail pair of the machine tool was repaired. The accuracy of the repaired guide rails has basically reached the factory standard. For example, the V-shaped guide rail of the bed has a precision of 0.03 mm in the vertical direction and 0.