Torque test system and method of car seat belt coil spring based on labview

Abstract

The invention discloses a LabVIEW-based automotive safety belt coil spring torque testing system and a method thereof, wherein the system and the method belong to the field of spring torque measurement. The system is composed of a precise electric control turntable, a precise electric control displacement table, a precise torque sensor, a claw, a coil spring, a mounting disc, a coil shaft, a position fine-adjustment mechanism, a multi-axis motion controller, a digital display instrument and a computer. The LabVIEW-based automotive safety belt coil spring torque testing system has advantages of simple structure, low manufacture cost, small size, remarkable space-saving effect, high measurement precision, high testing efficiency, effective workload reduction of operators and effective production benefit improvement. The method realizes convenient operation. After clamping, whole testing process can be finished automatically. Through a testing program which is programmed by LabVIEW software which is installed in a computer, automatic loading and automatic unloading can be realized. Data are acquired and stored automatically, and performance curve fitting is performed. A testing report is generated automatically. After clamping, the whole testing process can be automatically finished. Errors caused by manual operation and number reading can be prevented.

Description

technical field [0001] The present invention relates to a kind of car seat belt coil spring torque test system and its method, more specifically, relate to a kind of car seat belt coil spring torque test system and its method based on LabVIEW. Background technique [0002] In recent years, with the strong growth of my country's economy and the rapid development of the automobile industry, automobile safety has become a common concern of people. For a time, it seems that automobiles can only be called safe if they are equipped with ABS, airbags, safety cabin structures and other devices. But in fact, it is our most common safety device-seat belt that plays the most important role in guaranteeing people's safety. [0003] The retractor is the core component of the car seat belt, and its functions include spring recovery, vehicle tilt sensing, vehicle rapid acceleration and deceleration sensing, etc. In a typical seat belt system, the seat belt is attached to a retractor. The...

AI Technical Summary

Problems solved by technology

[0005] At present, the factory uses manual inspection, which is very inefficient. A small number of employees participating in the inspection cannot meet the daily production requirements of the factory. Once there are more inspectors, the economic benefits will be significantly reduced.

In addition, because manual detection is greatly affected by human factors, the accuracy of measurement is poor, and it cannot be guaranteed that each measurement result can meet the requirements

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