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Double-station gastight dry-type leakage detecting method and double-station dry-type leakage detecting equipment

A dual-station, station technology, used in the use of liquid/vacuum for liquid tightness measurement, by measuring the fluid's acceleration and deceleration rate, etc., can solve the problem that the storage of detection data and the real-time qualified barcode label cannot be well realized. Printing function, low equipment leak detection efficiency, large manpower and equipment resources, etc., to achieve the effect of providing detection efficiency, complete functions, and low investment costs

Active Publication Date: 2015-06-03
SDAAC AUTOMOTIVE AIR CONDITIONING SYST CO LTD SHANGHAI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the dry-type leak detection of auto parts was a simple single-station dry-type leak detection equipment and single-station leak detection tooling, which was only controlled by the programmable logic controller PLC, and only one product could be tested at a time , the detection time is slow
Moreover, the equipment does not have a corresponding industrial computer, which cannot well realize the storage of all detection data and the real-time printing function of qualified barcode labels
The double-station dry-type leak detection equipment of the existing structure is spliced ​​by two single-station equipment. The core air-tightness detection instrument in the equipment needs two sets, two sets of leak detection single-station tooling, and two independent control system, etc., so the equipment cost will be very high, and the design, manufacture, control and detection procedures of the equipment will be complicated and cumbersome, and there are obvious shortcomings of low efficiency of equipment leak detection, and the detection function is simple, and the stability of detection is relatively high. Poor, waste of manpower and equipment resources is quite large

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  • Double-station gastight dry-type leakage detecting method and double-station dry-type leakage detecting equipment

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0039] Please also see Figure 1 to Figure 4 , a dual-station dry-type leak detection equipment, including: industrial computer (industrial control computer), gas precision leak detector, double-station airtight leak detection tooling, gas circuit box and industrial printer, industrial computer and gas precision detector Leak meter connection, double-station airtight leak detection tooling is set adjacent to the gas precision leak detector, and the double-station airtight leak detection tooling is...

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Abstract

The invention provides a double-station gastight dry-type leakage detecting method and double-station dry-type leakage detecting equipment. The method comprises the following steps: firstly, respectively placing two to-be-detected products on left and right stations of the double-station dry-type leakage detecting equipment, fixing and clamping the detected products, and extruding and sealing inlets, outlets and gas vents of the products; under a certain negative pressure condition, performing negative-pressure vacuum-pumping on the two products simultaneously to measure product leakage rate value under the negative pressure condition when the two products are in series connection, judging whether the two products have large leakages or not according to the detected leakage rate value, and ending the detection if the two products both have large leakages; otherwise, under a certain positive pressure condition, simultaneously charging dry gas with a certain pressure into the products and then detecting, detecting the leakage rate value obtained by comparing and detecting the two products under a positive pressure condition, and determining leakage conditions of the two products according to the compared and detected leakage rate value. The invention further provides corresponding leakage detecting equipment. The double-station dry-type leakage detecting equipment has the advantages of being stable in performance, quick to detect leakage, high in detection precision and wide in scope of application.

Description

technical field [0001] The invention relates to a dry leak detection technology, in particular to a double-station airtight dry leak detection method and a double-station dry leak detection device. Background technique [0002] Under the background of increasingly intensified competition in the automobile industry at this stage, major automobile companies are increasingly emphasizing on shortening the manufacturing time of each new model so that they can quickly launch new models to gain a place in the market. Correspondingly, major automobile factories also require automobile Parts suppliers can provide more and better auto parts in the shortest time. [0003] In the past, the dry-type leak detection of auto parts was a simple single-station dry-type leak detection equipment and single-station leak detection tooling, which was only controlled by the programmable logic controller PLC, and only one product could be tested at a time , the detection time is slow. Moreover, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 周波
Owner SDAAC AUTOMOTIVE AIR CONDITIONING SYST CO LTD SHANGHAI
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