29、 Structural design of guide rail（500 Details to Pay Attention to in Mold Design

Generally, it is not suitable to use dual V guide rails
For the worktable supported by the guide rail, the driving force acting point should balance the resistance moment of the two guide rails
3. Workbench and guide rail should be "short on top"
4. Double rectangular guide rails should consider adjusting the clearance
When the temperature of the guide rail changes greatly, the distance between the guide surfaces should not be too large
The fixation of the pressing plate of the guide rail requires good contact, stability, and reliability
7. The pressing plate should have a dimensional boundary
8. Steel inlaid guide rails should not be fixed with slotted countersunk screws
There should be no gap in the adjustment of the insert strip
10. The guide surface should remain unchanged
11. The insert should be installed on the non stressed surface
12. Avoid casting defects of guide rails
13. The supporting part of the guide rail should have a high stiffness
14. The screws for fixing the guide rail should not be tilted
15. Avoid causing deformation of the guide rail when tightening the set screw and affecting the accuracy
16. The ball guide rail should have sufficient hardness
17. The rollers of the roller guide should not be too long
18. Try to avoid using scraping guide rails
19. To prevent the rolling element from falling out of the guide rail, install a limit device
20. Reduce adjustment work for guide rail installation
21. Note that the matched guide rail surfaces can grind each other