With more and more customers of linear modules purchased by Chuangfeng Seiko, it has also formed a good reputation in the industry. Therefore, more and more customers find us through the network platform, and more customers will consult the linear module. Recently, customers often ask this question: why is the positioning accuracy of the linear module inaccurate? To be honest, new users of the module don't really understand this problem. Even old customers who have used some linear modules may not know it. This problem can be said to belong to a popular knowledge of linear module. Today, Chuangfeng Seiko will explain it to you here!


First of all, we understand what is the repeated positioning accuracy of linear module. The positioning accuracy refers to an accuracy value for each operation of linear module, which will be accurately executed every time. Generally, the limit positioning accuracy value of Chuangfeng Seiko linear module is ± 0.01mm.

Screw rod module


If the ball screw installed inside is a domestic low-cost screw, it will be worn after use for a period of time, resulting in an increase in the back clearance of the screw. When the reverse clearance increases, the repeated positioning accuracy will be inaccurate. What if it is replaced with an imported screw? Is it certain that this will not happen? This is not necessarily true. The wear resistance of the imported screw rod is certainly higher than that of the domestic screw rod. Although the wear resistance is high, routine maintenance should also be done. When the screw rod grease is running out, it must be supplemented in time, otherwise the dry grinding will also aggravate the wear of the screw rod. Just like the automobile, good maintenance is a guarantee for the long-term stable use of precision.



servo motor


How could the servo motor have this problem? At present, some domestic servo motors use very poor encoders. When problems occur, the number of pulses sent out will be different from the walking position of the linear module. It is generally recommended that users use big brand servo motors. Although the price is expensive, it is guaranteed that you will get the goods for every penny.


Collider


During the normal commissioning of the module, if the sliding seat is inadvertently overstroked, resulting in a collision, this problem will also occur. The collision will cause deformation of the ball screw or loosening of the nut, which will also lead to inaccurate accuracy. At this time, it can not be used. In this case, the linear module should be returned to the factory for maintenance immediately, and can be used normally after maintenance. Be careful when debugging to avoid unnecessary losses.

To put it simply, the above is basically the reason for inaccurate re reading and positioning accuracy. The daily maintenance and use of high-quality accessories as well as user debugging are particularly important. I hope these points can help users better understand this problem.