Device and method for testing spring mechanical property

Abstract

The invention provides a device for testing spring mechanical property. The device comprises an operation module, a driving module, a measuring module, a control module and an output module. A spring is arranged on the operation module, a dynamic load is implemented to the spring through the driving module, the measuring module collects non-electricity signals generated by the spring, displacement signals of a stress end and voltage and current signals of the driving module, then the obtained spring dynamic load information of the spring and the output feature information of the driving module are output to the control module for storage and analysis processing, then the information is compared with preset a dynamic load threshold value, the control module outputs control instructions to the driving module to achieve controllable output of the dynamic load, meanwhile, stored information is output to the output module for real-time displaying, and the mechanical property parameter of the spring is determined. According to the device for testing spring mechanical property, the dynamic load with the specific mode can be implemented to the tested spring, so that appointed deforming amount of the tested spring is achieved in a one-time movement cycle, testing is flexible, and accuracy is high.

Description

technical field [0001] The invention relates to the technical field of spring detection, in particular to a device and method for testing the mechanical properties of springs. Background technique [0002] A spring is a class of components that perform functions based on elastic operations. In actual work, the spring is subjected to various types of loads, and these loads become an important factor for the fatigue failure of the spring and affect its working life. [0003] The spring mechanical performance test is used to test the life characteristics of the spring. The existing test method is to use the splint to cooperate with the driving mechanism to realize the upward and downward pressure action of one or more springs to complete the fatigue test of the spring; or to use the driving mechanism to cooperate with the cam structure. Multiple springs realize reciprocating action to achieve the purpose of life test. [0004] However, in the current technology, the test devi...

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Problems solved by technology

[0004] However, in the current technology, the test device only simulates the actual load of the spring by the amount of tension or compression, but cannot give the dynamic process of the load. At the same time, it lacks attention to the spring characteristics and load characteristics during the test process, and the test plan is not flexible enough. , the result is not accurate

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