Linear Guide Rail Malfunction Analysis and Measures

There are many factors that lead to the creeping phenomenon of the linear guide in machine tools. The following are some measures to eliminate the phenomenon according to different factors.

1 Poor lubrication or floating unloading does not work, resulting in increased friction resistance.

2. The guide rail contact is not good, resulting in oil pressure leakage.

The solution of the guide rail:

1. Check and adjust the throttle valve to make the oil supply and pressure normal, it needs to be adjusted slowly, not too large, not too small, to float unloading is not crawling, flow and pressure is too large to cause drift and oil leakage.

2. Guide rail contact is not good

First, the assembly precision of machine parts is low, the rigidity of transmission mechanism is poor, and the transmission power is insufficient.

In the assembly process of the parts of the transmission mechanism on the machine tool, the coaxiality and parallelism are poor, or the pressure plate of the linear guide is adjusted too tightly and other reasons will cause the friction of the transmission system to increase, the transmission power to decline and the creep of the linear guide; The rigidity of the bracket or fastener of the original design of the transmission parts of the machine tool is poor, and there is an elastic state under the transmission pressure, which can not smoothly transfer the torque, or because the transmission level is too much, so that the friction resistance offsets part of the transmission power, the transmission torque is insufficient, but also can produce the crawling phenomenon on the linear guide rail surface.

Elimination method:

Re-check the transmission mechanism of the machine tool to find out the improper parts of the assembly for adjustment, or reassemble after disassembly, so that the matching condition is good, reduce the friction resistance of parts to eliminate the crawling caused by insufficient transmission power; Strengthen the rigidity of transmission parts, improve their strength, avoid elastic state.

Transform the transmission system, reduce the transmission level of the machine, improve the transmission efficiency of the machine tool to ensure enough transmission power, eliminate crawling phenomenon.