Rolling straight-line guide rail pair reliability tester

Abstract

The invention discloses a rolling straight-line guide rail pair reliability tester, which comprises a lathe bed and a horizontal moving portal frame located on the lathe bed. A rack parallel to a portal frame moving guide rail is fixedly installed at the position slightly at the back on the table surface of the lathe bed, and the length of the rack is approximately equal to that of the lathe bed. A gear shift mechanism is disposed on one side of a rear column of the portal frame, and a gear at the output shaft end of the gear shift mechanism is meshed with the rack. A loading mechanism capable of going up and down is arranged on a front column of the portal frame and used for applying load to a detected rolling straight-line guide rail pair. The gear shift mechanism and electric appliance parts in the loading mechanism are connected with a control cabinet circuit with a digital display instrument. The rolling straight-line guide rail pair reliability tester is capable of measuring the number of times of running-in of the rolling straight-line guide rail pair on the conditions of high speed and heavy load and also capable of measuring indexes of linear speed, rated dynamic load, static load, mean cycles between failures and the like, simple in structure, convenient to install, reliable in loading and accurate in testing.

Description

technical field [0001] The invention belongs to performance testing equipment for mechanical parts, and relates to a rolling linear guide rail pair reliability testing machine. Background technique [0002] The rolling linear guide pair is one of the core components of high-end CNC machine tools and has been widely used. Its reliability is usually tested by testing machines. However, the existing rolling linear guide pair reliability testing machine only tests the guide rail pair under no-load conditions, and the test results cannot reflect its comprehensive technical performance, that is, the running-in performance of the rolling linear guide pair under high-speed and heavy-load conditions. Whether the distance can meet the design requirements cannot reflect the true reliability of the guide rail pair. Contents of the invention [0003] The object of the present invention is to propose a rolling linear guide rail pair reliability testing machine, which can comprehensivel...

AI Technical Summary

Problems solved by technology

However, the existing rolling linear guide pair reliability testing machine only tests the guide rail pair under no-load conditions, and the test results cannot reflect its comprehensive technical performance, that is, the running-in performance of the rolling linear guide pair under high-speed and heavy-load conditions. Whether the distance can meet the design requirements, it cannot reflect the true reliability of the guide rail pair

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