Multi-probe automatic leak detection system and leak detection method

Abstract

The invention relates to a multi-probe automatic leak detection system and a leak detection method. The system comprises a control platform, a plurality of mechanical arms connected with the control platform, and leak detection devices which are installed at the arm ends of the mechanical arms and composed of suction pipes and gas sensitive sensors. The leak detection devices are connected with the mechanical arms through rotating parts; a rotating piece is arranged on each rotating part, and an infrared distance measuring sensor is arranged on the rotating piece; the gas sensitive sensors areconnected with the rotating pieces through aviation plug connectors; and all the sensors and wires connected with the rotating pieces are connected with the control platform through the mechanical arms. The control platform controls the mechanical arms to drive the suction pipes to reach the set position according to the setting in combination with the measured value of the infrared distance measuring sensors, and once the signal peak value sensed by a gas sensitive sensor is larger than a leak point threshold value, the control platform gives an alarm. Gas is used as a tracing medium, multiple workpieces or multiple parts of the workpieces can be detected at the same time, the detection process is fully automatic, time and labor are saved, and the leak detection efficiency and the leak detection accuracy are improved.

Description

technical field [0001] The invention relates to a leak detection device, in particular to a multi-probe automatic leak detection system and a leak detection method. Background technique [0002] Leak detection technology has gradually been widely used in vacuum devices, food packaging, aerospace, nuclear fusion and other fields, and has become a high-tech in the 21st century. With the development of science and technology, the performance of many precision devices has a lot to do with the sealing of the device, and a tiny leak may cause huge economic losses. [0003] The basic principle of leak detection is to inject a leak-indicating medium on one side of the leak hole, which can be gas or liquid. Under the action of pressure difference or concentration difference, the leak-indicating medium enters the other side through the leak hole. Whether there is a leak hole and the size of the leak hole can be judged by the existence and concentration of the leakage medium on one si...

AI Technical Summary

Problems solved by technology

[0004] However, at present, the detection of leaks is mainly carried out manually. In the process of automatic assembly line production, this detection method needs a lot of time and manpower. factor reduced

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