Rolling linear guide rail pair integration wear coefficient test method

Abstract

The invention discloses a rolling linear guide rail pair integration wear coefficient test method and belongs to the rolling linear guide rail pair performance test field. A rolling linear guide railpair integration wear coefficient refers to the wear coefficient which comprehensively considers guide rail wear and slide block wear, and the integration wear coefficient directly reflects a degradation speed of a preload and other performance degradation speeds caused by the degradation of the preload. The method comprises the following steps of establishing a rolling linear guide rail pair integration wear coefficient calculation model; setting a test condition of the rolling linear guide rail pair integration wear coefficient; and testing the rolling linear guide rail pair to be tested soas to obtain the rolling linear guide rail pair integration wear coefficient. In the invention, theoretical and experimental methods for measuring the rolling linear guide rail pair integration wear coefficient are provided so as to fill the blank in the field. By using the method, a measuring speed is fast, precision is high, and theoretical support and experimental verification are provided fora performance degradation model of a rolling linear guide rail pair.

Description

technical field [0001] The invention belongs to the field of performance testing of rolling linear guide rail pairs, in particular to a method for testing the comprehensive wear coefficient of rolling linear guide rail pairs. Background technique [0002] As an important mechanical transmission device, the rolling linear guide is widely used in advanced computer numerical control machine tools. When the rolling linear guide pair is running, the relative motion between the guide rail, slider and ball will produce friction, which will cause the wear of the raceway and the ball, and directly affect the performance and service life of the rolling linear guide pair. Analysis of the wear process, where critical steps depend on the measurement of the integrated wear coefficient. The comprehensive wear coefficient will directly reflect the degradation speed of the preload, and the degradation of the preload will bring a series of chain reactions, such as the reduction of rigidity, ...

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Problems solved by technology

However, for the rolling linear guide pair, the above research ideas can be used for reference to a certain extent. However, since the research object is a large sample and large sample tests cannot be carried out, some research contents such as crack initiation and the influence of the full-length residual stress fluctuation on the fatigue life etc. can not be carried out

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