Lead screw guide rail reliability testing stand based on electro-hydraulic servo loading

Abstract

The invention relates to a lead screw guide rail reliability testing stand based on electro-hydraulic servo loading. The lead screw guide rail reliability testing stand comprises a lead screw guide rail part, a load applying part, and an automatic control part. The lead screw guide rail part comprises an upper sliding saddle, a lower sliding saddle, and a lead screw nut pair. Guide rails, which are cooperated with each other, are disposed between the upper sliding saddle and the lower sliding saddle. The upper sliding saddle is provided with a grinding wheel force bearing simulation device, and the lower sliding saddle is fixedly disposed on horizon iron by T-shaped screw threads. The lead screw nut pair is constituted by a lead screw nut and a lead screw, which are in a threaded cooperation. A lead screw is connected with a servo motor by a coupling. The load applying part comprises a base, which is fixedly connected with the horizon iron. The base is provided with a direction adjusting mechanism, and the upper surface of the direction adjusting mechanism is fixedly connected with a left support and a right support by supporting plates. A rotating shaft is fixedly connected between the left support and the right support, and is connected with an electro-hydraulic servo loading device. The automatic control part is connected with the lead screw guide rail part and the load applying part in a communicated manner.

Description

technical field [0001] The invention relates to a screw guide rail reliability test bench based on electro-hydraulic servo loading, which is mainly applicable to the field of reliability of the feeding system of the grinding wheel frame of the numerical control grinding machine. Background technique [0002] CNC grinding machine is the main machine of the equipment manufacturing industry. Its development level and production capacity directly reflect the comprehensive strength of the national industry and play a vital role in the development of the national economy. The performance of the grinding machine determines the level of the equipment manufacturing industry. There is a big gap between the CNC grinding machine in my country and the international advanced CNC grinding machine, which is mainly reflected in the reliability, especially the accuracy maintenance and reliability. The feed system affects the reliability of the CNC grinding machine. One of the key systems of se...

AI Technical Summary

Problems solved by technology

[0008] At present, the test of the feeding system of the CNC grinding machine is mainly the no-load test, and the reliability loading test is rarely carried out, resulting in very little reliability basic data of the feeding system of the CNC grinding machine, and the designer cannot accurately evaluate the feeding of the CNC grinding machine. System Reliability Level

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