The function of the guide rail is to guide and support, which means that the moving parts can move in a certain direction accurately under the action of external forces (the weight of the moving parts, the weight of the workpiece, the cutting force and the traction force, etc.). In the guide rail pair, the moving part that is integrated with the moving parts is called the moving guide rail, and the fixed part that is integrated with the document bearing part is the supporting guide rail. The moving guide rail is usually a linear motion or rotation with only one degree of freedom for the supporting guide rail.
The role of precision guide rails:
Although there are various forms of rail systems, the nature of the work is the same. The working parts of the machine tool move on the specified rail system, just like a train running along the rails in a specified direction. Whether it is a machine tool guide rail or a rail on a railway, it embodies the following three basic functions:
(1) Guide the movement of the carrier
(2) Provide a smooth moving surface for the carrier
(3) The force generated by the movement of the train or the cutting of the machine tool is transmitted to the foundation or the bed to reduce the impact of the resulting impact on passengers and passively machined parts.