Cross-roller guide rail, which increases the effective contact length of rollers by using a unique roller retaining method, combines R-type roller retainer which shortens the pitch interval of rollers with V-type special rail which is precisely ground after special heat treatment, and has high rigidity. High precision. A small finite type straight-motion system.
It is widely used in OA machines and their peripheral machines, various measuring devices, precision machines such as printed board punching machines, or slide parts of optical testers, optical worktable, operating mechanism, X-ray shooting device, etc.
Characteristics of cross roller guide rail
1, the rolling friction is small and the stability is good;
2, the contact area is large and the elastic deformation is small;
3. There are many effective sports bodies, and it is easy to realize high rigidity and high load sports;
4. Flexible structural design, convenient installation and use, and long service life;
5. Low mechanical energy consumption, high precision, high speed and large carrying capacity.
Many mechanical designers, considering the cost, precision or installation space, hope to use cross guide rail to replace the straight guide rail assembled on the previous machine. So what are the advantages of cross guide rail compared with straight guide rail?
The installation height of the roller guide rail is lower.
Because two pairs of guide rails are installed in parallel to form a set, the machine integrity of the cross guide rail is better than that of the linear guide rail, and the overturning moment is also higher than that of the linear guide rail. Therefore, the stability of the operating machine is much higher than that of the linear guide rail. However, the effective stroke of the cross guide rail is limited, which is not as long as the linear guide rail can stay. In the limited stroke, the reciprocating linear motion accuracy of the cross guide rail is much higher than that of the linear guide rail SP. Therefore, it can be said that the accuracy of cross guide rail is much higher than that of linear guide rail.