Complete multichannel white body welding spot detection system

A solder joint detection, multi-channel technology, applied in the processing of detection response signals, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve problems such as low detection efficiency and inability to meet production needs, and achieve high detection efficiency and improved Efficiency, the effect of improving detection efficiency

Active Publication Date: 2013-02-27
HUNAN UNIV AISHENG AUTO TECH DEV
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Problems solved by technology

At present, the ultrasonic testing equipment for the automotive industry on the market is mainly a single-channel testing system, which can only test one solder joint at a t

Method used

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  • Complete multichannel white body welding spot detection system
  • Complete multichannel white body welding spot detection system
  • Complete multichannel white body welding spot detection system

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] see Figure 1-2 , which shows a whole set of multi-channel body-in-white welding spot inspection system of the present invention. Wherein, the body-in-white welding assembly 1 is fixed by the positioning pins 11 of the body-in-white of the stand 6 (see figure 2 ), a plurality of ultrasonic probes 2 are attached to the body-in-white welding assembly 1 through the probe fixture 7 slidably fixed on the stand 6, and the ultrasonic probes 2 are connected to the multi-channel signal acquisition and analysis through the connecting cable 3 The controller 4 is connected to the computer 5 through the connection cable 3 for multi-channel signal acquisition and analysis.

[0034] The probe fixture 7 of the present invention includes a cylinder 8 , a linear guide rail 9 and a probe locking device 10 . Wherein the ultrasonic probe is det...

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Abstract

The invention discloses a complete multichannel white body welding spot detection system which comprises a plurality of ultrasonic welding spot detection probes and a multichannel signal acquisition analyzer. The ultrasonic welding spot detection probes are connected with a white body through special probe fixtures and used for detecting key welding spots on the white body, one side of the multichannel signal acquisition analyzer is connected with the ultrasonic welding spot detection probes, and acquired and analyzed data are transmitted to a computer. The multichannel white body welding spot detection system converts high-frequency signals into ultrasonic signals through the ultrasonic welding spot detection probes, the signals are transmitted according to an order set by the system to cover a target area, the ultrasonic welding spot detection probes receive reflected ultrasonic signals and then convert the ultrasonic signals into electric signals which are transmitted to the multichannel signal acquisition analyzer, processed information is transmitted to a computer, and developed special software is used for graphically displaying the acquired signals on the computer and performing indicator evaluation for the signals.

Description

technical field [0001] The invention relates to the technical field of engineering testing, in particular to a whole set of multi-channel welding spot detection system for a body-in-white. Background technique [0002] In the automobile manufacturing industry, spot welding has become the main joining process, and its importance to the quality of the body-in-white is self-evident. At present, the more advanced detection method in the world is non-destructive testing through ultrasonic waves, which is also a main direction of non-destructive testing of automobiles. In China, non-destructive testing has gradually entered various industries. The automobile industry has developed rapidly and has a large demand, but it still cannot meet the needs of actual production. In the production process of domestic automobile enterprises, the application range of non-destructive testing is not large, and the inspection of body-in-white cannot be completely covered, so it is impossible to g...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/44
Inventor 成艾国何智成胡朝辉宋凯
Owner HUNAN UNIV AISHENG AUTO TECH DEV
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