THK ball screw manufacturers share some points to note for low-speed movement of ball screws

　　THK ball screw manufacturers: Ball screws should maintain stability during low-speed movement

　　Mechanical movement is different from human movement. At high mechanical performance, high-speed and efficient movement is relatively easy to achieve. However, for low-speed movement, due to the machine's own response level and the characteristics of the mechanical parts, it may lead to low-speed crawling, resulting in insufficient precision. To meet the needs of various production environments, it is necessary to maintain the stability of the ball screw at low speeds, so the following points should be noted.

　　1. Guide rail rigidity

　　Consider whether the guide rail will be affected by external forces. If the guide rail rigidity is insufficient, it will directly affect the balance force, preventing it from maintaining linear motion. To compensate for the rigidity of the guide rail, we can appropriately consider increasing the size of the guide rail or using other methods to improve the rigidity of the auxiliary guide rail.

　　2. Maintain stable low-speed movement.

　　During low-speed movement, crawling is very easy to occur. In this case, the smoothness of the low-speed movement process and the degree of lubrication between the guide rails need to be considered. In medium and low-speed movement, by maintaining a certain amount of friction, it is easier to control the speed and effectively improve the accuracy.

　　In fact, the stability of the ball screw during low-speed operation is a way to ensure its accuracy. During low-speed operation, it is necessary to ensure that the rigidity of the guide rail meets such environmental requirements. In addition, during low-speed movement, appropriately considering the amount of lubricating oil can effectively help increase precision, ensuring that the entire low-speed process does not affect the accuracy of the product.

　　THK ball screw manufacturers: What are the basic requirements for guide rails using ball screws?

　　The requirements for guide rails using ball screws are as follows:

　　1. Guiding accuracy requirements

　　Whether the guide rail supports linear or circular motion, but what affects the guiding accuracy is the geometric accuracy and structural form of the guide rail. Of course, thermal deformation of the guide rail will also affect the accuracy to a certain extent. Special situations may be encountered during operation, such as oil film thickness.

　　2. Wear resistance

　　Repeated linear motion requires higher wear resistance of the guide rail. If the linear motion lasts for a long time, the accuracy of the guide rail itself will decrease, and the stability of the linear motion of the ball screw will also be affected.

　　3. Preventing sudden fatigue point mutations.

　　Repeated linear motion can cause fatigue points to appear on the guide rail, and pits will appear at these fatigue points. Therefore, when controlling the rolling guide rail, it is necessary to consider whether the large load and bearing force are uniform. By preventing sudden changes in fatigue points, the effectiveness of the guide rail can be ensured.

　　The requirements for guide rails using ball screws are very high. Repeated linear motion may cause fatigue points to appear on the guide rail, making the linear motion inaccurate and ineffective. Therefore, when purchasing, consider the wear resistance and load-bearing capacity of the guide rail.

　　THK ball screw manufacturers will not elaborate further today. Thank you for watching.