Device for testing reliability of spindle pop-rivets and disc springs of machining center

Abstract

Theinvention discloses a device for testing reliability of spindle pop-rivets and disc springs of amachining center. A tool changing simulation mechanism is mounted on one side of iron floor in the longitudinal direction, a loading simulation mechanism is mounted on the other side of the iron floor in the longitudinal direction, and a spindle simulation mechanism is mounted in the middle of the iron floor in the longitudinal direction; a tool holder of the spindle simulation mechanism keeps centered with a tool grasping manipulator of the tool changing simulation mechanism; a piston push rod of an air cylinder in the loading simulation mechanism keeps centered witha rotor spindle of the spindle simulation mechanism. By means of a laboratory reliabilitybench test, failure data, operating data and maintenance data can be rapidly acquired, furthermore, test conditions are controllable, the test process is reproducible, defects of a method for acquiring the failure data, the operating dataand the maintenance data through an on-site reliability tracking test are overcome very well, and a reliability test foundation is provided for acquiring the failure data, the operating data and themaintenance data of multiple pop-rivet-disc spring parts in a short time, discovering weak links of the parts and improving the design.

Description

technical field [0001] The invention relates to the technical field of experimental devices, in particular to a reliability test device for a machining center spindle pull nail and a disc spring. Background technique [0002] CNC machine tools are the basis for improving the national manufacturing level and equipment level, and are an important symbol to measure a country's industrial development level and comprehensive national strength. The main shaft is the core component of the machining center and the most representative key functional sub-component. Its quality and reliability directly affect the quality of the processed workpiece and also affect the reliability level of the machining center. According to on-site statistical data, among the various factors that lead to the damage of the spindle, the damage of the spindle pull stud-disc spring parts accounts for about 21% of the spindle damage. It is the key to the reliability of the machining center. [0003] Judging...

AI Technical Summary

Problems solved by technology

However, the on-site reliability tracking test is used to obtain the failure data, operation data and maintenance data of the spindle pull nail-disc spring components. The test period is long, the test is uncontrollable, and the test cannot be reproduced. It consumes a lot of manpower, material and financial resources. Therefore, the practicability of the on-site reliability tracking test method is not strong

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