Rolling linear guideway rated dynamic load and service life testing device

Abstract

The invention discloses a rolling linear guideway rated dynamic load and service life testing device. Two supporting guide rail pairs are arranged on the top surface of a tool body in parallel, a testing table top is arranged on the supporting guide rail pairs, three to-be-detected guide rail pinboards are arranged on the upper surface of the testing table top in parallel, a to-be-detected guide rail pair is arranged on each to-be-detected guide rail pinboard, a sensor supporting seat is arranged on a sliding block of each to-be-detected guide rail pair, and each sensor supporting seat is provided with a displacement sensor, an image collection sensor, a vibrating sensor, a temperature sensor and a lower loading tool. Toothed bars are arranged on one side of the testing table top. A gantry is arranged above the testing table top in a crossing mode, three resistance apparatus is arranged at the top end of the gantry side by side, a gear supporting seat is arranged on one side of the testing table top, a gear shaft and a pin gear are arranged in the gear supporting seat, the pin gear is matched with the toothed bars, and the gear shaft is connected with a speed reducer and a motor. The device is capable of testing the rated dynamic load and the service life of a rolling linear guideway, high in testing efficiency, and real and reliable in testing data.

Description

technical field [0001] The invention belongs to the technical field of service life testing of mechanical devices, in particular to a rated dynamic load and life test device of rolling linear guide rails. Background technique [0002] Rolling linear guides have the advantages of high motion sensitivity, small friction, and stable low-speed motion. They are important functional components that directly affect the accuracy and life of machine tools. The service life of the track has a direct impact on the machining accuracy and life of the machine tool. After the machine tool has been used for a certain period of time, uneven wear of the guide rail surface, accompanied by fatigue pitting of the rolling elements, causes the spindle mounting slide to deviate in the horizontal and vertical planes, resulting in a decrease in the machining accuracy of the workpiece. By improving the guide rail pair structure, material, surface treatment process, lubrication method and other parame...

AI Technical Summary

Problems solved by technology

When the test piece is a rolling linear guide with a large rated load and a small friction coefficient, the life, load range and measurement accuracy of the traditional reciprocating fatigue wear device cannot meet the test requirements

At the same time, the existing test method is to take the test piece out of the testing machine for testing, there will be errors during the test, and it cannot meet the requirements of real-time testing.

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