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what is aluminum extrusion rail
Release time:
2022-04-20 14:42
Source:
The guide device in the mechatronics system is generally a guide aluminum extrusion rail, and the guide aluminum extrusion rail is composed of a moving part and a guide part. When various machines are running, the guide aluminum extrusion rail pair ensures the correct movement trajectory of the actuator. And the guide pair also affects the motion characteristics of the actuator.
As a guide device, the guide aluminum extrusion rail should have the following properties:
(1) Guidance accuracy: It mainly guides the accuracy of the trajectory of the aluminum extrusion rail. The main factors affecting the guiding accuracy are: the geometric accuracy and contact accuracy of the guide aluminum extrusion rail, the structural form of the guide aluminum extrusion rail, the rigidity and thermal deformation of the guide aluminum extrusion rail and its supports, the thickness and stiffness of the oil film between the static (dynamic) pressure guide aluminum extrusion rail pairs, and so on.
(2) Precision retention: mainly determined by the wear resistance of the guide aluminum extrusion rail. Wear resistance is related to the material of the guide aluminum extrusion rail, the friction properties of the guide aluminum extrusion rail pair, the pressure on the guide aluminum extrusion rail and its distribution law.
(3) Stiffness: including the stiffness of the guide aluminum extrusion rail itself and the stiffness of the contact. It mainly depends on factors such as the shape and size of the guide aluminum extrusion rail, the connection method of the support and the stress condition.
(4) Low-speed motion stability: When the moving guide aluminum extrusion rail moves at a low speed or a small amount of displacement, it is easy to produce frictional self-excited vibration, that is, creeping phenomenon. Crawling will reduce the positioning accuracy or increase the value of the roughness of the workpiece surface to be machined.
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Tel: 86-512-53640771
Fax: 86-512-53640769
E-mail：sales@alumag.com.cn(Domestic sales)
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Web:http://www.alumag.com.cn/
Address: No. 9, Xingang East Road, Liujiagang, Fuqiao Town, Taicang City, Jiangsu Province, China