钢板剪切工艺规程

IBShenringprocessprocedure钢板剪切工艺规程(以下简称规程)适用于(数显)剪切机及通用剪切机斜刃剪切低碳钢板。Steelplateshearprocessplanning(hereinafterreferredtoastherules)issuitableforthe(digital)andgeneralshearingmachineshearingmachineshearingoflowcarbonsteel.设备、工具1equipment,tools2.1设备The2.1deviceQC12Y-6X3200Y液压剪板机QC12Y-6X3200Yhydraulicshearingmachine2.2工具The2.2tool钢尺 0〜1000mm钢卷尺 0〜3500mmTheruleris0~1000mmSteeltape0~3500mm剪板机调整2shearsadjustment3.1刀片间隙The3.1bladeclearanee上、下刀片间隙过小时，剪切断面的断裂带易被挤坏，剪切力也会增大。当间隙过大时，条料的弯曲和拉伸严重，毛刺增大，尺寸精度下降。上、下刀片间隙的推荐数据见表1。Last,thelowerbladeclearaneeistoosmall,easilycrushedfracturesectionofshearband,shearstressincreases.Whenthegapistoolarge,thestripbendingandstretchingseriousburrsize precision,increase,decrease.Therecommendeddataunderthebladegap,seetable1.表1剪切刀片间隙Table1shearbladegap材料厚度Thethicknessofthematerial刀片间隙Thebladeclearanee1.00.0751.50.1252.50.153.00.25.00.353.2刀片的直线度The3.2bladestraightness刀片的直线度一般规定为0.03mm。Straightnessgeneralbladeis0.03mm.3.3后定位及标尺afterthelocationandscale根据产品图样规定尺寸要求，调整后定位及左(或右)标尺并紧固。当剪切材料较厚、尺寸比较大的板料时，为保证尺寸准确，可同时采用前后定位。Accordingtothedrawingsrequiredsizerequirements,afteradjustmentforpositioningand left(orright)scaleandfastening.Whencuttingthickmaterial,dimensionsofmaterialofrelativelylarge,inordertoensuretheaccuratesize,canalsoadoptthepositioning.3.4试剪sheartest机器调整好后，试剪1〜2块料，检查试品的长宽，直线度，垂直度，毛刺高度等，若误差不符合要求，应继续调整。Adjustthemachine,trytocut1~ 2block,checkthesamplelengthandwidth,straightness,vertical,burrheight,iftheerrordoesnotmeettherequirements,shouldcontinuetoadjust质量要求3qualityrequirements4.1材料平面度materialflatness钢板平面应不大于表2的规定，当钢板平面度超过表2规定时需用钢板校平机校平后再进行剪切。Theprovisionsofsteelplateshouldbelessthan2,whentheplateflatnessspecifiedinTable2withthesteelplatelevelingmachinelevelingandshearing.表2钢板平面度Table2flatness mm材料厚度(mm)Thethicknessofthematerial(mm)平血度FlatnessW32>334.2剪切线性尺寸的一般公差见表3shearlineardimensionsofgeneraltolerancesareshowninTable3表3线性尺寸的一般公差General tolerancesfor linear dimensionsin Table 3

W30±0.05±0.40±0.08±0.60±0.10±0.80>30〜120±0.05±0.60±0.10±0.60±0.10±0.80>120〜400±0.08±0.60±0.15±0.80±0.15±1.50>400〜1000±0.10±0.80±0.20±1.00±0.15±1.50>1000〜1600±0.20±1.00±0.25±1.50±0.30±2.00>1600〜2500±0.30±1.20±0.40±2.00±0.50±2.504.3剪切直线度一般公差见表4shearstraightnessGeneraltolerancesareshowninTable4表4直线度一般公差Table4linearityGeneraltolerancesmm料厚等级〜尺寸分段 、W2>2〜4>4〜8ABABABW300.100.300.100.300.200.50>30〜1200.150.400.150.800.400.80>120〜4000.200.500.251.000.501.00>400〜10000.250.600.301.200.801.20>1000〜16000.300.800.401.501.001.60>1600〜25000.451.000.501.601.202.004.4剪切垂直度的一般公差见表54.4shearverticalityGeneraltolerancesareshowninTable5表5垂直度的一般公差Table5theverticalityofthegeneraltoleranee>30〜1200.150.300.250.500.401.00>120〜4000.250.500.400.600.501.20>400〜10000.400.800.501.000.601.50>1000〜16000.601.200.801.201.002.00>1600〜20001.002.001.201.501.502.504.5毛刺的高度的一般公差见表6Generaltolerancesof4.5oftheheightoftheburrisshowninTable6表6毛刺高度的一般公差 Table6theburrheightofgeneraltolerancesmm料厚等级ABW1.0<0.05<0.08>1.0〜1.5<0.06<0.12>1.5〜2.5<0.08<0.16>2.5〜4.0<0.10<0.20>4.0〜8.0<0.12<0.264.6公差等级的确定当产品图样上剪料尺寸有公差时，剪切件应符合产品图样上的公差要求；若产品图样上没有要求时，应按剪切机的精度等级分A、B两极确定。a） 表3〜表6的A级公差适用于精度高的数控剪板机加工的剪切件。b） 表3〜表6的B级公差适用于精度低的非数控剪板机加工的剪切件。Todeterminethetoleraneelevelof4.6Whentheproductpatterncuttingsizetolerances,shearcomponentsshouldcomplywiththeproductdrawingstolerances;ifthereisnorequirementofproductdrawings,shouldaccordingtotheprecisionshearingmachineisdividedintoA,Bpolesdetermined.A）table3totableatoleraneeof6forshearpartsinCNChighprecisionshearingmachineprocessing.B)table3totableBtoleraneeclass6isapplicabletoshearthenonCNCshearingmachinemachiningpreeision剪切力的确定一般在剪板机上的铭牌上都有明确的规定，当铭牌上没有此数据时应查阅剪板机的使用说明书。Todeterminethe5shearstressGeneralprovisionsareclearinthecuttingmachineonthenameplate,nameplateonthedatawhennoshouldconsulttheshearingmachineinstructions.检验6.1操作者对每批剪切件的首件应自检，自检合格后再交给检验员检验，经检验员检验合格后方可继续生产。6inspectionthefirstpieceofeachbatchofshearconnectorsshouldbeselfinspection,selfinspectionandthentoinspectorinspection,theinspectorbeforeitcancontinuetoproduce.6.2检验员应根据剪切件的品种和数量，除进行首件检验外，还应随