Method and system for detecting parameters of tinning furnace

Abstract

The invention relates to the technical field of crest welders, in particular to a method and a system for detecting parameters of a tinning furnace. In the invention, a plurality of probes are distributed on a detecting smelting tool in a linear arranging mode, the detecting smelting tool moves along a conveying track of the tinning furnace, simultaneously the probes detect the temperature of each detecting point, and tin wave surface parallelism analysis is carried out on the time data of each probe contacting a tin wave surface by utilizing multi-point comparison, and then the shape of the tin wave surface is obtained by judging the compared results. The invention has the advantages that firstly, the tin wave surface parallelism detection is more improved compared with a traditional detection mode, and digital collection detection method is adopted so that the operation is more convenient without safety hazard, and the detection precision is also obviously improved; secondly, the whole detection process is automatically finished without the participation of maintenance personnel; thirdly, various detection data can be stored for a long period so as to be beneficial to analysis and processing; and fourthly, parameters of the temperature of each section, the parallelism of the tin surface, the welding speed, and the like in the tinning furnace can be comprehensively detected.

Description

Technical field: [0001] The invention relates to the technical field of detection methods, in particular to a method for detecting tin furnace parameters and a detection system thereof. Background technique: [0002] In the production process of printed circuit boards, the components with feet adopt the plug-in technology for plug-in assembly, and then the printed circuit boards are transported to the wave soldering machine through the conveying track, preheated by the preheating system, and then passed through the tin furnace by the tin wave. Soldering, after rapid cooling through the cooling zone, the tin solidifies from liquid to solid, so that the component feet and the printed circuit board are firmly welded into one. In order to ensure the quality of printed circuit board soldering, it is necessary to use detection fixtures to detect various parameters such as foaming, turbulence waves, and flat wave levelness of the wave soldering furnace. [0003] Existing testing f...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the closed interior of the tin furnace and the high temperature, it is inconvenient to use this kind of fixture for detection, and there are certain risks. For example, the high-temperature glass is easy to break. When observing the test results, the maintenance personnel need to wear a gas mask and get close to the tin furnace;

[0005] 2. The test results cannot be saved. Observation by human eyes will bring large errors to the judgment. The test performance and accuracy cannot meet the requirements, resulting in the quality of the tinned printed circuit boards not meeting the requirements, resulting in a certain amount of waste and rework. It not only increases the cost of fixtures but also reduces product quality and production efficiency;

[0006] 3. Various detection fixtures have single function and high cost

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