Linear guide rail is a patent published by the French Patent Office in 1932. After decades of development, linear guide has increasingly become an international common support and transmission device, more and more CNC machine tools, CNC machining centers! Precision electronics .Machinery, automation equipment used in industrial production has been widely used.
The linear guide pair is generally composed of a guide rail, a slide block, a reverse device, a rolling element and a retainer, etc. It is a new type of work
Compared with the reciprocating true linear motion of the rolling support, the ball rolling between the slider and the guide rail can replace the true sliding contact, and the codenier rolling body can realize infinite circulation in the raceway and the slider with the help of the reverse device, which has the advantages of simple structure, small static and static friction coefficient, high positioning accuracy and good accuracy retention. Linear guide rail, also known as precision rolling linear guide rail, slide rail, linear guide rail, rolling guide rail, for the need to accurately control the parallelism of the table walking linear reciprocating motion occasions, has a higher rated load than linear bearings, can bear a certain torque, can achieve high precision linear motion under high load. According to the friction properties, linear motion guide can be divided into sliding friction guide, rolling friction guide, elastic friction guide, fluid friction guide and so on.
Linear guide has the following characteristics:
1. High rigidity in all directions
The four-row circular arc groove and the 45-degree contact Angle of the four-row steel balls are used to make the steel balls reach the ideal two-point connection
The contact structure can withstand loads from up, down and left and right directions and can apply prepressure to improve rigidity if necessary.
2.with interchangeability
Due to the strict control of manufacturing accuracy, the size of the linear track can be maintained within a certain level, and the slider has a guarantee
The device is designed to prevent the ball from falling off, so some series accuracy is interchangeable, and customers can order guides or sliders as required
Guide rails and sliders can also be stored separately to reduce storage space.
3. automatic aligning ability
The DF(45-°45)° combination from the arc groove, through the elastic deformation of the steel ball and the transfer of the contact point at the time of installation, even if the mounting surface is somewhat deviated, it can be absorbed by the inside of the line rail slider, resulting in the effect of automatic aligning ability and obtain a high precision and stable smooth movement.
4.the linear guide rail is composed of steel balls in the infinite rolling cycle between the slider and the guide rail
Thus, the load platform can easily move along the guide rail with high precision, and the friction coefficient can be reduced to one-fiftieth of the usual traditional slide guidance, and high positioning accuracy can be easily achieved.
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Post time: Sep-15-2023