Leakage detection equipment and process for pipe cores

Abstract

The invention provides a leakage detection equipment and process for pipe cores, wherein the process comprises the following steps: pre-selection: picking out pipe cores with unqualified appearances;and putting to-be-detected pipe cores into the leakage detection equipment, inserting an exhaust pipe assembly into a lower clamp, and starting the leakage detection equipment, wherein the upper clampcovers a cathode assembly and an anode assembly, the leakage detection equipment executes leak detection operation, the leak detection operation sequentially comprises a large leakage detection stage, a small leakage detection stage and a helium leakage detection stage, unqualified workpieces are screened out, and pipe cores with good sealing performance are sent to the next operation stage. Through three stages of detection means, the detection conditions are sequentially improved, the pipe cores are subjected to deep leakage detection step by step, and finally the pipe cores which are freeof cracks and leak holes and are tightly welded are screened out. Compared with a manual screening or primary detection mode in the prior art, the detection efficiency and the detection accuracy are improved, and waste is reduced.

Description

technical field [0001] The invention relates to the technical field of leak detection, in particular to a leak detection device and process for a tube core. Background technique [0002] A microwave oven is a widely used cooking appliance that can heat and cook food quickly and conveniently. During the manufacturing process of the microwave oven and before leaving the factory, multiple tests need to be carried out, especially the leak detection test for the tube core assembly of the microwave oven. The tube core is assembled together by welding the cathode assembly, anode assembly and exhaust pipe assembly of the microwave oven. After the assembly is completed, the die needs to be turned into a vacuum state, so it is necessary to check whether the die has cracks, leaks, and whether the soldering between the components is tight. The airtightness of the tube core will directly affect the quality of the microwave oven. If you rely solely on manual visual inspection, not only...

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Problems solved by technology

[0003] In view of this, the present invention aims to propose a die leak detection process to solve the problems of low die leak detection accuracy and low work efficiency in the prior art

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