Device and method for testing accurate servo linear drive system performance

Abstract

The invention relates to a device for testing performances of a precision linear servo drive system and a testing method thereof. The device comprises a cabinet leg and a bed which is supported by the cabinet leg, wherein, the bed is equipped with a main lead screw guide rail pair and an auxiliary lead screw guide rail pair; a main servomotor and an auxiliary servomotor are respectively connected with the lead screws of the main lead screw guide rail pair and the auxiliary lead screw guide rail pair by couplings; a workbench and an auxiliary workbench are respectively arranged on two sides of the bed; lead screw nuts in the main lead screw guide rail pair and the auxiliary lead screw guide rail pair are fastened below the workbench and the auxiliary workbench; the workbench can be provided with loads of various masses; an active cell of a first linear displacement grating scale is fastened with the workbench, and the active cell of a second linear displacement grating scale is fastened with the auxiliary workbench; the signal output terminal of the first linear displacement grating scale and the signal output terminal of the second linear displacement grating scale are connected with a controller of the testing device and form a fully closed precision servo drive system respectively together with a main drive unit and an auxiliary drive unit. The testing device can simulate various working conditions to perform the drive performance tests and parameter measurement of a precision servo rotating motor and a control unit thereof, and perform technical evaluation on each component of the system under various setting conditions.

Description

technical field [0001] The present invention is a precision servo linear drive system performance test device and its test method, in particular to a linear (linear) feed system capable of simulating the working state of a high-end CNC machine tool, under various working loads, working resistance, speed, In the case of acceleration, etc., it is possible to carry out the driving performance test and parameter measurement of the precision servo rotating motor and its control unit, and even the test device and its test method for evaluating the technical performance and working performance indicators of related parts and some key structures. Background technique [0002] As the core of the equipment manufacturing industry, CNC machine tools are developing in the direction of high speed, high efficiency, high precision, intelligence, compounding and environmental protection. The servo drive system of CNC machine tools is generally composed of a drive control unit, a drive unit, ...

AI Technical Summary

Problems solved by technology

[0012] At present, my country's servo drive system industry does not have a dedicated drive performance test device, it is impossible to establish industry standards, and it is difficult to form a performance expression and evaluation method for my country's own servo system (including spindle) products

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