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

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...

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

Images