Spring testing method and spring elasticity testing device

A test method, spring elasticity technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of reduced damping performance of spring devices, damage to lamp holders and lamps, etc., and achieve the effect of improving reliability

Inactive Publication Date: 2014-12-03
OCEANKING DONGGUAN LIGHTING TECH +2
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  • Abstract
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  • Claims
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Problems solved by technology

However, when the spring is used for a long time, the elastic properties of the spring will change, which will reduce the shock absorption performance of the spring device, thereby causing damage to the lamp holder and the lamp. Therefore...

Method used

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  • Spring testing method and spring elasticity testing device
  • Spring testing method and spring elasticity testing device
  • Spring testing method and spring elasticity testing device

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0043] Please refer to figure 1 , a kind of spring testing method provided by the present invention, it comprises:

[0044] S102, measuring the first elastic modulus value of the spring to be tested at normal temperature. In this embodiment, the process of measuring the first elastic modulus value of the spring is as follows:

[0045] measuring the initial length of the spring in a natural state;

[0046] Under the stressed state, measure the compressed length of the spring;

[0047] Calculate the elastic modulus value of the spring according to the length variation ΔX of the spring and the magnitude of the force, and the calculation formula is as follows:

[0048] K=F / △X, where K is the elastic modulus value of the spring, F is the force on the spring, and △X is the diffe...

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Abstract

The invention discloses a spring testing method comprising the steps: measuring a first elastic modulus value of a to-be-tested spring at room temperature; judging whether the first elastic modulus value is greater than a predetermined value; if the first elastic modulus is greater than the predetermined value, marking the to-be-tested spring as a to-be-tested sample, and recording and displaying the first elastic modulus value, and otherwise carrying out arm reminding; allowing the to-be-tested sample to bear a predetermined high temperature or bear a predetermined height and a predetermined pressure simultaneously within predetermined time, after reaching the room temperature, measuring a second elastic modulus value of the to-be-tested sample; and judging whether the second elastic modulus value is greater than a predetermined value, if the second elastic modulus value is greater than the predetermined value, recording and displaying the second elastic modulus value, and otherwise carrying out arm reminding. The invention also provides a spring elasticity testing device. The spring testing method and the testing device utilize the two conditions of the room temperature and the predetermined high temperature to measure the elastic modulus values of the spring, and thus the elastic property of the spring can be effectively tested, then defects of spring design and manufacture can be found out, and the reliability of a product is improved.

Description

technical field [0001] The invention relates to a spring testing method and a spring elasticity testing device. Background technique [0002] With the rapid development of industry, lighting plays an increasingly important role, and the environment in which lamps are used is becoming more and more complex, for example, lamps used in vibration places. In order to improve the anti-vibration performance of lamps and lanterns in vibration situations, a spring device is generally added to the lamp holder to reduce the impact of external vibration on the lamp holder and lamp. However, when the spring is used for a long time, the elastic properties of the spring will change, which will reduce the shock absorption performance of the spring device, thereby causing damage to the lamp holder and the lamp. Therefore, it is necessary to test the elastic properties of the spring, and the elastic modulus of the spring The elastic modulus value is a key indicator to judge the quality of th...

Claims

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Application Information

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IPC IPC(8): G01N3/18
Inventor 周明杰方璋
Owner OCEANKING DONGGUAN LIGHTING TECH
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