A device for detecting spring performance

Abstract

The invention discloses a device for detecting spring performance. It includes cavity, shaft sleeve, spring, main shaft, screw, support cover plate, fork connecting rod, contact, push plate, shaft nut, spring washer, fastening pin, rotating shaft, retaining ring, handle, screw, Limiting flange, stroke block, positioning screw, anti-detachment hook assembly, tension sensor and data processor; shaft sleeve, main shaft and spring are installed in the cavity, the main shaft passes through the center hole of the cavity, and the two ends of the cavity are equipped with The supporting cover and limit flange, the fork-type connecting rod and the handle are fixed on the supporting cover through the rotating shaft after being fastened by the fastening pin. The bump block, set screw and detachment hook assembly are installed at the other end of the main shaft. For springs with stretching length requirements, the invention can not only verify the stretching length of the spring, but also measure the stiffness coefficient of the spring, introduces digital processing technology, has simple operation and high detection efficiency.

Description

technical field [0001] The invention relates to mechanical testing equipment, in particular to a device for testing spring performance. Background technique [0002] Before each batch of spring leaves the factory, a tensile test must be done to check the stiffness coefficient of the spring. However, for springs with stretching length requirements, it is also necessary to verify whether their stretching length meets the requirements. It is a bit unsuitable for the advanced measuring instruments. It is often necessary to change the weight several times to achieve the required stretching length. There are too many operating steps, which is a bit cumbersome. According to Hooke's law F=K·ΔL, imagine that if there is a device that can give the measured spring a continuously increasing tension until the stretching length required by the spring is reached, then measure the tension on the spring and calculate it The stiffness coefficient of the spring achieves the effect of killing ...

AI Technical Summary

Problems solved by technology

[0002] Before each batch of spring leaves the factory, a tensile test must be done to check the stiffness coefficient of the spring. However, for springs with stretching length requirements, it is also necessary to verify whether their stretching length meets the requirements. It is a bit unsuitable for the measuring instrument. It is often necessary to change the weight several times to achieve the required stretching length. There are too many operating steps, which is a bit cumbersome.

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