1、 Rail wound

　　 If it is Parts processing Our machine tool has been used for a long time ， There is a change in the level of foundation and bed ， Make the local unit area load of guide rail too large ， The level adjustment of the bed guide rail should be carried out regularly ， Or repair the precision of guide rail ； In case of long-term processing of short workpieces or over concentrated load ， Local wear of guide rail is serious ， Attention should be paid to the reasonable distribution of the installation position of short workpieces ， Avoid excessive load concentration ； If the guide rail is poorly lubricated ， Adjust the lubricating oil quantity of guide rail ， Guarantee lubricating oil pressure ； If the material of guide rail is poor ， The guide rail shall be treated by electroplating heating and self cooling quenching ， Add zinc aluminum copper alloy plate on the guide rail ， To improve friction ； If the scraping quality does not meet the requirements ， The quality of scraping repair should be improved ； Parts processing Poor maintenance of ， Stolen goods falling in the guide rail ， Should add Strong machine tool maintenance ， Protect the guide rail protection device 。

　　2、 The moving parts on the guide rail do not move well or cannot move

　　 If it is Grinding damage of guide rail surface ， Can use 180＃ Grinding damage on the guide surface of abrasive cloth grinding machine ； If the pressing plate of guide rail is abraded ， Remove the pressing plate and adjust the clearance between pressing plate and guide rail ； If the clearance between the rail insert and the rail is too small ， Too tight ， The insert retaining screw should be loosened ， Adjusting the insert bolt ， Flexible movement of moving parts ， Ensure 0.03mm Feeler gauge must not be inserted ， Then lock the retaining screw ， In order to proceed smoothly Parts processing 。

　　3、 The machining is uneven at the tool joint

　　 If the straightness of guide rail is out of tolerance ， The guide rail shall be adjusted or repaired ， Tolerance 0.015/500mm； If the stopper iron of the worktable is loose or the angle of the stopper iron is too large ， The plug iron clearance should be adjusted ， The bending degree of plug iron is less than 0.05mm/ Overall length ； If Parts processing Machine levelness difference of ， Bend the guide rail ， The installation level of the machine tool should be adjusted ， Ensure Parallelism 、 Perpendicularity in 0.02/1000mm Within 。