Linear guide: linear guide in the application of the assessment of the 6 elements

The accuracy of the guidance refers to the accurate level of the movement of the moving components along the Ina linear guide guide surface movement of its trajectory. The main factors affecting the guiding accuracy are the geometric accuracy of the guide bearing surface, the type of structure of the guide, the accuracy of the contact of the guide vice, the appearance roughness, the guide and the stiffness of the support, to the thickness of the oil film of your woman and the stiffness of the oil film.

Linear guide in the application of the assessment of the 6 elements.
 
1, the accuracy of the guide and the guide and the thermal deformation of the support, etc.
 
The accuracy of the guidance refers to the movement of the moving parts along the Ina linear guide guide surface movement when the accurate level of its trajectory. The main factors affecting the guiding accuracy are the geometric accuracy of the guide bearing surface, the structure type of Miniature Bearing  the guide, the accuracy of the contact of the guide, the roughness of the appearance, the guide and the stiffness of the support, the thickness of the oil film to your woman and the stiffness of the oil film.
 
The geometric accuracy of the linear motion guide generally includes: straightness in the vertical plane and horizontal plane; parallelism between the two guide surfaces. Guide geometric accuracy can be expressed in terms of the error on the full length of the guide or the error on the unit length.
 
2、Accuracy persistence
 
In addition, accuracy persistence is the ability to guide the rail work process to maintain the original geometric accuracy. The accuracy of the guide rail adherence mainly depends on the wear resistance dimensional stability of the guide rail. Wear resistance and the guide vice material matching, force, processing accuracy, lubrication and protection device performance factors. The residual stress in the guide and its support parts will also affect the accuracy of the guide to adhere to.

3, motion sensitivity and positioning accuracy
 
Motion sensitivity refers to the movement components can achieve a smaller stroke; positioning accuracy refers to the ability of the movement components to stop in the specified position as required. Motion sensitivity and positioning accuracy are related to the type of guide, friction characteristics, movement speed, transmission stiffness, quality of moving parts, etc.

4、Smoothness of movement

Linear guide motion smoothness refers to Ina linear guide in low-speed movement or micro movement without crawling phenomenon performance. Smoothness and the structure of the guide, guide vice material matching, lubrication, lubricant properties and guide movement of the transmission system stiffness and other factors.

5, vibration resistance and stability

And stability refers to the performance of self-excited vibration does not occur under the given operating conditions. Vibration resistance is the ability to guide the rail vice to accept forced vibration and impact.

6、Stiffness

This is particularly important for fine machinery and instruments. Guide deformation including guide body deformation guide vice contact deformation, guide resistance to force deformation ability. Deformation will affect the relative position between the components and guidance accuracy. Both should be considered.