Device for testing thermal state characteristics of feeding system

Abstract

The invention relates to a device for testing the thermal state characteristics of a feeding system. The device for testing the thermal state characteristics of the feeding system comprises a base experiment table, a servo motor, a motor base, a coupler, a right bearing seat, a right bearing assembly, a ball screw, a lead screw nut base, a lead screw base, a working table, a rolling guide rail, a wedge-shaped block, a rolling guide rail sliding block, a left bearing seat, a left bearing assembly, an axial pre-stretching device, a PC, a pressure sensor, a thermal resistance sensor, an infrared thermometer, a chromatic dispersion confocal displacement meter, a force sensor displayer, a thermal resistance sensor displayer, a servo amplifier and the like. The device for testing the thermal state characteristics of the feeding system has the advantages that the mechanical structure is simple, the testing principle is distinct and the testing precision is high, angular contact ball bearings with different diameters and ball screws can be adopted for testing for various feeding systems, real-time working conditions such as the axial force and the rotation speed are simulated, and the temperature field and the axial thermal displacement of the feeding system are tested.

Description

technical field [0001] The invention belongs to the field of machine tool testing, in particular to a thermal-state characteristic testing device of a feed system. Background technique [0002] At present, the research on the thermal characteristics of the feed system is mostly limited to theoretical analysis and simulation calculation, and the results lack the support of experimental data, and there is a certain error with the actual situation. The present invention verifies the traditional simulation calculation method from the perspective of experiment. Provide a factual basis. [0003] In order to prevent the feed error caused by heat generation in the feed system, the traditional method of pre-stretching the screw is used to reduce the error, but it lacks pertinence. Because the speed and axial force have a great impact on the heat generation of the feed system, The amount of pre-stretching taken may not necessarily be realistic. Contents of the invention [0004] T...

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Problems solved by technology

[0003] In order to prevent the feeding error caused by the heating of the feed system, the traditional method of pre-stretching the screw is used to reduce the error, but it lacks pertinence. Because the speed and axial force have a great impact on the heat generation of the feed system, The amount of pre-stretching taken may not be in line with reality

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