The profile deviation of the switch rail and point rail is manually checked,which not only results in poor ac-curacy but also low check efficiency.According to the requirements of TB/T 3307.1-2020 Technical specification for manufacturing of high speed turnouts-Part 1:Manufacturing and assembly,and referring to the manual check meth-ods,the paper proposes function of the software for checking the profile deviation of the switch rail and point rail,intro-duces the principle of checking profile deviation,designs the software for checking profile deviation.The software for checking profile deviation is verified.The results show that using the software for checking profile deviation can not only accurately and quickly compare the profile deviation of the switch rail and point rail,but also unify the profile com-parison benchmark and deviation calculation method,eliminating the differences in results caused by different methods.
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