Reliability test apparatus and test method for electro-hydraulic servo feeding system

Abstract

The invention discloses a reliability test apparatus and test method for an electro-hydraulic servo feeding system, and solves the problem of lack of reliability test apparatus and test method simulating loading function for an electro-hydraulic servo feeding system of a numerical controlled lathe. The reliability test apparatus comprises an electro-hydraulic servo feeding system, a loading system, a detecting system and a control system. The electro-hydraulic servo feeding system is installed on a foundation, a hydraulic station (22) is installed on the foundation on the right side of a lathe bed pedestal (1), and the loading system is installed on the top left side of the lathe bed pedestal (1). A loading oil cylinder (3) of the loading system is connected with a simulation work bench (13) of the electro-hydraulic servo feeding system, and the detecting system is installed on the electro-hydraulic servo feeding system. A laser interferometer (39) of the detecting system is positioned on the right front side of the lathe bed pedestal (1), and a data collection card (54) of the control system is respectively connected with the electro-hydraulic servo feeding system, the loading system and the signal line of the detecting system. The invention further discloses a reliability test method for an electro-hydraulic servo feeding system.

Description

technical field [0001] The invention belongs to a test device in the field of precision manufacturing technology and industrial automation control. More precisely, the invention relates to a reliability test device and a test method of an electro-hydraulic servo feed system. Background technique [0002] The electro-hydraulic servo system combines the advantages of both electrical and hydraulic, and has the advantages of high control precision, fast response, large output power, flexible signal processing, and easy feedback of various parameters. It has been widely used in aerospace, Metallurgy, manufacturing and other important fields, while the electro-hydraulic servo system has also been widely used in the feed system of CNC machine tools. [0003] The function execution part of the CNC machine tool is the servo feed system, and the machining accuracy of the CNC machine tool mainly depends on the servo feed system. The reliability of the electro-hydraulic servo feed syst...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem that there is no reliability test device and reliability test method with the loading function of the electro-hydraulic servo feed system for simulating CNC machine tools in China, and to provide a reliability test method for the electro-hydraulic servo feed system. Test device and test method

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