In order to solve the problem that the selection of key process parameters of a flexible soldering robot de-pends on manual experience,the empirical model of its THT assembly process parameters is established with the re-sponse surface method and the reliability of the model is verified.On this basis,the multi-parameter relative sensi-tivity of the key process parameters is analyzed through the Monte-Carlo simulation,and their single-parameter sen-sitivity curve is drawn.Then,based on the sensitivity analysis,the stability region division method is designed,and the stability region of process parameters for soldering quality comprehensive score is obtained.The optimal region of process parameters of the soldering robot are acquired by compressing the stability region:soldering temperature from 350-368℃,soldering time from 1.31-1.48 s and solder feeding volume from 1.5-2.0 mm3.The average value of the soldering quality comprehensive score within the optimal region of process parameters is 90.2 points.
维普
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