滚动直线导轨滑块拉拔成形工艺优化及有限元分析

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中图分类号：TG356.2 文献标识码：A DOI：10.7535/hbkd.2026yx01008

Abstract：Aiming toaddresstheissue of increased productioncosts caused bythefive-passcold drawing forming for the slidingblock intherolinglinearguidepairinafactoryinHebeiProvince，thisstudyinvestigatedtheinfluenceofparameters suchas dieconeangleand sizing belt lengthonbiletdeformation.Theobjectivewas todeterminetheoptimal parameter combination toreducethe numberof drawing passesandlowerproductioncosts.Afiniteelement modelfor sliderdrawing and forming was established，and whetherthestressatthe minimumcross-sectionoftheblank exceeded thetensilestrengthof the materialduring thedrawing processwas taken as the failurecriterion for theorthogonal experiment.Anorthogonal test analysis wasconductedwith four processparameters including dieconeangle，sizingbeltlength，frictioncoeficient，and drawingspeed，asinfluencingfactors，tostudytheinfluenceofprocessparametersonthestressattheminimumcrossectional areaofthebilletduringtheformingprocess，aswellastheprimaryandsecondaryrelationshipsofinteractions.Theoptimal parameter combination was obtained by combining range analysis （ R -value method）.Finally，the number of drawing passes was optimized throughtheoreticalcalculation，andthesizestructureof thediesizingbelt was redesigned.Theresults indicate thattheoptimized drawing passs arereducedfromfive tothree，andthe influencedegrees ofvarious process parameters onthe stressactingontheminimumcrosssectionofthebiletareinthefollowingorder：dieconeangle，sizingbeltlength，friction coeficient，anddrawingspeed.Theoptimalprocessparametersareasfolows：theconeangleofthemoldis5°，thesizingbelt length is 10mm ，thefriction coefficient isO.O6，and thedrawing speed is 83mm/s .The simulation results indicate that after optimization，the stressonthebilet’s minimum crosssectionremains below the tensile strength of thematerial（885 MP a ） during allthree-passdrawing passes，andthe safetyfactorexceeds1.25.Theoreticalcalculationsshow thatthe safetyfactors of thethre-passdrawingallmeettherequirements，whichverifiesthefeasibilityof theoptimizationscheme.Thestudyreveals the primaryand secondaryrelationshipsbetweekey parameters of processandmoldaffecting drawing stress，providing theoretical reference for optimizing the multi-pass drawing process of rolling linear guide sliders.

Keywords：ferrous metals and alloys；cold drawing;rollng linear guide;process optimization;structure design；finite element simulation

滚动直线导轨副是数控机床、工业机器人、精密仪器等装备的核心导向部件，其承载能力及成形精度直接决定设备的工作精度及整体性能[1-4]。（剩余14344字）