A method for identifying welded pipe fittings

Abstract

The invention discloses a welded and molten pipe fitting identification method which comprises the steps that constant current is applied to a to-be-welded-and-molten pipe fitting, the voltage of the to-be-welded-and-molten pipe fitting is acquired, and a resistance value R0 of the to-be-welded-and-molten pipe fitting is calculated; at least one prestored matched resistance value Ri is compared with the resistance value R0 sequentially, and whether Ri meets the following conditions is judged: an absolute value of R0 minus Ri is less than or equal to Ke, Ke is greater than 0, and Ke has a first predetermined value; if only one matched resistance value Ri meeting the conditions is obtained after judgment, corresponding welding parameters of the matched resistance value Ri are imported to welding and melting equipment; and if at least two matched resistance values Ri meeting the conditions are obtained after the judgment, one of the matched resistance values Ri, most approximate to the resistance value of the to-be-welded-and-molten pipe fitting is selected, and the corresponding welding parameters of the most approximate matched resistance value is imported to the welding and melting equipment. With the adoption of the welded and molten pipe fitting identification method, the welding parameters of a welding machine and the import of the welding parameters can be automatically identified and accomplished, so that the workload and personal errors of workers are reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of electric fusion welding machines, in particular to a method for identifying welded fusion pipe fittings. Background technique [0002] With the development of various types of infrastructure, urban water supply and drainage systems, and underground cable systems have more and more demands for pipe welding. In recent years, the domestic demand for IGBT hot-melt welding has increased year by year, and it is no longer satisfied with simple functions and single operations. However, it requires a higher user experience, more intelligent operation, and less human input to meet the demand. [0003] The output of the welding machine depends on the pipe fittings, and the pipe fittings are often inconvenient to measure. At present, it is common to operate on pipe fittings, and different pipe fittings correspond to different welding parameters, so it is necessary to manually set the pipe fitting parameters. This method is cu...

AI Technical Summary

Problems solved by technology

[0003] The output of the welding machine depends on the pipe fittings, and the pipe fittings are often inconvenient to measure

At present, it is common to operate on pipe fittings, and different pipe fittings correspond to different welding parameters, so it is necessary to manually set the pipe fitting parameters. This method is cumbersome to operate and easily causes human errors.

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