(高清版)GBT 39967-2021 五轴联动加工中心 S形试件精度检验

ICS25.040.10五轴联动加工中心S形试件精度检验国家市场监督管理总局国家标准化管理委员会GB/T39967—2021 I 3 6 8检验报告 附录A(资料性附录)S形试件STEP模型文件 IGB/T39967—2021本标准按照GB/T1.1—2009给出的规则起草。本标准由中国机械工业联合会提出。本标准由全国金属切削机床标准化技术委员会(SAC/TC22)归口。本标准起草单位：成都飞机工业(集团)有限责任公司、国家机床质量监督检验中心、电子科技大学、清华大学、秦川机床工具集团股份公司、成都普瑞斯数控机床有限公司、科德数控股份有限公司、大连理工大学。GB/T39967—2021五轴联动加工中心S形试件精度检验本标准规定了五轴联动加工中心S形试件几何定义、毛坯定义、加工、检验和检验报告。本标准适用于能通过五轴联动进行曲面侧铣加工S形试件的五轴联动加工中心。2规范性引用文件下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。GB/T11336—2004直线度误差检测3术语和定义下列术语和定义适用于本文件。直纹面ruledsurface由一簇直线段构成的曲面。S(u,v)=(1—v)×C₀(u)十v×C₁(u)(u∈[0,1],v∈[0,1])说明：C₀(u),C₁(u)—-——定义在相同参数区间u(0,1)的空间曲线；u,——u向和v向参数；S(u,v)在曲线C₀(u)和C,(u)上移动母线形成的曲面：图1直纹面—2GB/T39967—2021非均匀有理B样条non-uniformrationalB-spline;NURBS计算机制图中常用于生成和表示曲线、曲面的数学模型。注：NURBS曲线由其阶次、加权控制点及节点矢量定义。阶次定义了曲线上任意控制点附近受影响的控制点数。控制点决定了曲线形状，每个点的权重随着控制参数的不同而变化。节点向量是一序列的参数值，决定了控制点位置以及如何影响NURBS曲线NURBS被广泛应用于计算机辅助设计、制造和工程，是众多工业标准中的一部分，例如STEP(产品模型数据交互规范)参见ISO10303-21:2016和附录A。准均匀有理B样条quasi-uniformrationalB-spline非均匀有理B样条的特殊形式。注：对于n阶准均匀有理B样条，所有控制点的权重是相同的，节点矢量均匀分布且在起点和终点具有n重节点。假设控制点数量为m,则节点矢量为注：见图2、图3及GB/T1182—2018中17.9。单位为毫米说明：A——基准平面；SR——球体的名义半径；t--—公差。部分TED未标注。图2相对于基准的曲面轮廓度的标注3GB/T39967—20214试件几何定义4.1试件由S形缘条和矩形底座组成，试件形状见图4。B——直纹面B。单位为毫米图4试件几何结构图4.2S形缘条由两个直纹面定义。如图5a)所示，直纹面A由两条4阶(3次)准均匀有理B样条按式4(1)生成，两条B样条曲线分别由两组控制点P;和Q;(见表1)定义。同理，如图5b)所示，直纹面B由控制点分别为M;和N,(见表2)的两条4阶(3次)准均匀有理B样条生成。b)直纹面B图5直纹面定义5QY/mmQQY/mmQ₀—95.500Q0000Q₆020Q0030000004.3侧铣加工非可展直纹面时，扭曲角的存在意味着刀具与工件表面不可避免会产生干涉，不可能用非零直径的刀具加工出完美的工件。由刀具直径和扭曲角产生的曲面欠切和过切可能达到20pm。如注：侧铣加工是指使用圆柱形立铣刀圆周上的切削刃进行铣削加工。4.4在两直纹面Z向高度的1/2处作水平面，以该水平面与直纹面的交线作为生成刀具轨迹的“引导4.5使用的CAM(ComputerAidedManufacturing,计算机辅助制造)软件会影响加工曲面时产生的误差。如果可能，可使用NURBS插补减小误差(减轻机床列出。Y/mmP₀—95.5P₂P₆2P₈36MMY/mmM₀—95,5M₁M₂M₃MM₅M₆M₇4M₈MgM₁0M₁M12M₁3M₁4M₁₅表2直纹面B的控制点NX/mmY/mmZ/mmN₀-127—95,50N₁-124-290N₂-1280N₃-1080N₄-620N₅-330N₆-220N₇-2040N₈-180N₉-16-120N₁0-480N₁₁-950N₁2-970N₁3-460N₁0N₁₅99,505.1毛坯的几何定义如图6所示，S形缘条厚度为30mm。单位为毫米2×01ODA72210218230310R72图6毛坯几何结构图7GB/T39967—20215.2应对毛坯所有侧面进行加工以释放应力。底面的平面度误差应小于0.05mm,其他尺寸公差为士0.1mm。5.3材料为铝合金，其他材料由供应方与用户协商确定。6加工6.1毛坯装夹应至少使用两个螺栓或其他装夹方法，以提供足够的稳定性，并减小试件变形。夹具与安装面之间图7为试件在五轴联动加工中心三种结构形式上装夹的示例。注：双摆头结构指两个旋转轴均在主轴端；双转台结构指两个旋转轴均在工件端；摆头和转台复合结构指一个旋转a)双摆头结构形式b)双转台结构形式图7试件在五轴联动加工中心三种结构形式上的装夹示例8GB/T39967—2021c)摆头和转台复合结构形式6.2刀具和切削参数推荐的刀具和切削参数如下。其他刀具和切削参数由供应方和用户协商确定。a)刀具-—类型：圆柱形立铣刀；b)切削参数——轴向切削深度：由供应方和用户协商确定；——径向切削宽度：由供应方和用户协商确定；——进给速度：推荐根据主轴转速按表3选用。表3推荐的进给速度主轴转速/(r/min)6000～10000进给速度/(mm/min)加工坐标系如图8所示。9GB/T39967—2021单位为毫米ZZYX应小于0.5mm。由于S形缘条在某些位置与基准面A的夹角小于90°,S形缘条底部的残留c)步骤3:直纹面精加工五轴联动侧铣加工。允许S形缘条底部残留。允许精加工之前对工件底面进行精修达到5.2允许的平面度要求。d)步骤4:铣削附加平面D(仅适用具有C轴的五轴联动加工中心)。附加平面D如图9所示，用于检查主轴与C轴的同轴度。加工过程中，C轴每旋转一次(从最大负角度到0°或从0°最大正角度，或相反；如果C轴行程大于720°,仅执行720°,即±360°)刀具沿Y轴运行20mm。应使用加工S形缘条的测量基准进行加工，以确保测量坐标系与加工坐标系完全一致。重复使用时，应确保工件具有足够刚GB/T39967—2021说明：A——基准平面；B—---平面E和F的中间平面与基准面A相交获得的基准线；C——平面G和H的中间平面与基准面A的交线与直线B相交获得的基准点；铣削附加平面D的NC程序需手工编制，进给速度根据试件材料由供应方确定，也可由供应方和G00Z100.A0.C0.G00X161.Y130.G00Z-10.G01Y93.F1000.G01Y73.C270.G01Y53.C0.G01Y33.C-270.G01Y13.CO.G01Y-7.C270.Y-27.C0.Y-47.C-270.Y-67.C0.Y-87.C270.Y-107.C0.Y-130.F5000.G00Z100.M30.GB/T39967—20217检验7.1检验项目试件检验包含以下项目：a)两直纹面相对于基准A、B、C的轮廓度误差；b)附加面D的直线度误差(可选)。具有可旋转测头的坐标测量机。7.3检验方法7.3.1两直纹面相对于基准A、B、C的轮廓度误差的测量两直纹面相对于基准A、B、C的轮廓度误差测量坐标系应基于图9所示基准A、B、C创建。根据供应方和用户的协商，可直接在机床上进行测量。此时，对于测头与Z轴平行时可接触的点，应保持该方向进行测量；对于测头与Z轴平行时不可接触的点，应使用接触这些点所需的最少的转动位置进行测量。建议两直纹面轮廓度误差测量点数为100,其他测量点数由供应方和用户协商确定。推荐的测量点位置和检测矢量见表4。其中，点1到点50用于直纹面A,点51至点100用于直纹面B。检测矢量为推荐的检测点接触方向，曲面法向矢量的反表4推荐测量点的位置和检测矢量序号检测矢量IJK1—130.2508—0.054528—0.2201162—133.3897—0.042103—0.2207083—132.6081—0.018916—0.2356014—129.2423—0.025337—0.2351795—128.9006—0.004159—0.2376706—132.3142—0.007038—0.2373537—131.9212—0.033341—0.2231728—128.7620—0.015993—0.2244349—127.3413—0.115068—0.199107—129.8374—0.144681—0.198436—123.3116—0.396065—0.188841—121.7152—0.370311—0.187121—106.5214—0.833218—0.235787GB/T39967—2021表4(续)序号Y/mm检测矢量IJK—107.50810.504398—0.830748—0.235458—83.370480.71910.042218—0.965967—0.255196—82.86980.035654—0.966218—0.255248—58.4601—0.275178—0.926854—0.255379—58.3814—0.263290—0.930145—0.255945—36.2769—0.654739—0.725257—0.212882—36.8306—0.634973—0.740989—0.218504—21.886342.9091—0.888678—0.451591—0.079478—21.979345.4131—0.909993—0.409811—0.062988—13.9012—0.967295—0.253650—0.001463—13.4567—0.966899—0.255154—0.001599—7.4411—4.2355—0.970143—0.2425360.000000—7.7502—2.9992—0.970143—0.2425360.000000—1.4211—27.4555—0.955441—0.295180—0.000481—1.2141—28.1447—0.954100—0.299488—0.000568—50.5642—0.843134—0.5376560.007141—50.4696—0.853036—0.5218240.005479—69.3913—0.611260—0.7884420.068699—68.4381—0.569148—0.8183880.07944948.4747—77.8874—0.198343—0.9669960.15993248.0422—80.0882—0.226298—0.9614660.156118—81.46440.123296—0.9737350.191412—78.72920.142637—0.9713130.19027895.4607—69.16710.647900—0.7296650.21866696.4169—72.46810.607684—0.7633400.219164—51.49430.931217—0.3058560.198208—48.20130.935488—0.2952770.194096—23.94350.981989—0.0876070.167399—26.72350.981229—0.0937690.168512GB/T39967—2021表4(续)序号Y/mm检测矢量IJK—1.49560.984529—0.0179210.1743030.984347—0.0000730.1762420.9790330.0052890.2036330.979339—0.0081050.20206349.02910.975474—0.0252720.2186580.975471—0.0225660.2189660.974999—0.0535750.2156550.975304—0.0460780.216006—0.9729420.061409—0.222738—0.9735850.048860—0.22303749.1371—0.9713030.028402—0.236144—0.9711910.032497—0.236074—0.9725250.005444—0.232733—0.9725000.011808—0.232603—1.2859—0.9773740.013112—0.211114—0.977457—0.005581—0.211059—23.8825—0.9824700.051857—0.179064—26.4777—0.9804200.079948—0.179960—51.2425—0.9401010.291901—0.176077—48.2347—0.9452000.275735—0.174834—70.0869—0.7531950.622473—0.212660—73.4205—0.7469410.629450—0.21417888.0225—87.6978—0.3387110.911887—0.23181387.4266—84.3548—0.3549090.905731—0.231713—88.7096—0.0066020.978398—0.206626—91.64330.0171990.978929—0.203477—87.17190.3373590.930755—0.141012—85.11470.2968490.943030—0.150250—73.52150.6272450.776628—0.058412GB/T39967—2021表4(续)序号Y/mm检测矢量IJK—74.32030.6584190.750973—0.050236—55.12470.8432300.537544—0.003176—55.15780.8362080.548397—0.004240—10.0110—33.06400.9405860.3395530.001428—10.1928—32.50140.9415810.3367840.001311—16.9450—8.22000.9701430.2425360.000000—16.6765—9.29410.9701430.2425360.000000—22.66700.9701430.2425360.000000—23.06050.9701430.2425360.000000—30.625940.26020.9141050.4040590.033893—30.21590.9041680.4254370.038516—45.78670.5600700.8090550.178188—45.81050.5825600.7941300.173150—68.90040.1942580.9535120.230389—68.50520.1945900.9534550.230343—93.0126—0.2304110.9446740.233455—93.8989—0.2507260.9396760.232690—113.1265—0.8577170.4839910.173417—111.8368—0.8731070.4563100.171658—118.1152—0.9754770.1094540.190959—120.5185—0.9710710.1452000.189574—122.3174—0.9767220.0222320.213353—119.2883—0.9767220.0112860.214212—119.4730—21.4521—0.9755580.0096090.219531—122.6090—19.8932—0.9755610.0088400.219550—122.9725—45.1053—0.9762410.0206680.215701—119.9057—46.1475—0.9761970.0253100.215404—120.7568—70.8320—0.9774920.0418170.206787—123.6993—70.3094—0.9776810.0356600.207044GB/T39967—20217.3.2附加面D的直线度误差的测量S形试件精度检验的公差应符合图10、表5的规定。图10检验公差图示表5检验公差检验项目公差两直纹面相对于基准A、B、C的轮廓度0.12mm附加平面D的直线度(可选)0.05mm推荐的检验报告格式见表6。GB/T39967—2021加工条件机床名称：机床型号：加工日期：材料：刀具：——直径：—-—长度：—-—齿数：———材质：切削参数：—-—轴向切削深度：--—径向切削宽度：——主轴转速：—-——进给速度：——加/减速设置：--—控制系统插补方式：曲面轮廓测量仪器：测量日期：测量数据：123.直线度测量(可选)仪器：测量日期：测量数据：测量结果直纹面A相对于基准A、B、C的轮廓度误差：直纹面B相对于基准A、B、C的轮廓度误差：附加平面D的直线度误差(可选):其他ISO-10303-21;HEADER:FILE_DESCRIPTION(/*description*/(’’),/×implementation_level×/’’);FILE_NAME(/*name*/'S-ShapeTestPiece.stp',/*time_stamp*/’’,/*organization*/('’),/*preprocessor_version*/’’,/*originating_system*/',/*authorisation*/'’);FILE_SCHEMA(('CONFIG_CONTROL_DESIGN’));ENDSEC;DATA;#10=CONSTRUCTIVE_GEOMETRY_REPRESENTATION_RELATIONSHIP('supplementalgeometry',’’,#96,#11);geometry’,(#581),#11=CONSTRUCTIVE_GEOMETRY_REPRESENTATION('geometry’,(#581),#1077):#12=GEOMETRICALLY_BOUNDED_WIREFRAME_SHAPE_REPRESENTATION('S-ShapeTestPiece-None',(#97),#1077);#13=SHAPE_REPRESENTATION_RELATIONSHIP('None','relationshipbetweenS-ShapeTestPiece-NoneandS-ShapeTestPiece-None’,#96,#15);#14=SHAPE_REPRESENTATION_RELATIONSHIP('None','relationshipbetweenS-ShapeTestPiece-NoneandS-ShapeTestPiece-None’,#96,#12);#15=ADVANCED_BREP_SHAPE_REPRESENTATION('S-ShapeTestPiece-None’,(#122,#123),#1077):#16=CC_DESIGN_APPROVAL(#28,(#86));#17=CC_DESIGN_APPROVAL(#29,(#88));#18=CC_DESIGN_APPROVAL(#30,(#35));#19=APPROVAL_PERSON_ORGANIZATION(#73,#28,#22);#20=APPROVAL_PERSON_ORGANIZATION(#74,#29,#23);#21=APPROVAL_PERSON_ORGANIZATION(#75,#30,#24);GB/T39967—2021#22=APPROVAL_ROLE('approver');#23=APPROVAL_ROLE('approver');#24=APPROVAL_ROLE('approver');#25=APPROVAL_DATE_TIME(#43,#28);#26=APPROVAL_DATE_TIME(#44,#29);#27=APPROVAL_DATE_TIME(#45,#30);#28=APPROVAL(#31,,’);#29=APPROVAL(#32,’’);#30=APPROVAL(#33,’’);#31=APPROVAL_STATUS('not_yet_approved’);#32=APPROVAL_STATUS('not_yet_approved’);#33=APPROVAL_STATUS('not_yet_approved');#34=CC_DESIGN_SECURITY_CLASSIFICATION(#35,(#88));#35=SECURITY_CLASSIFICATION(’,,,,,#36);#36=SECURITY_CLASSIFICATION_LEVEL('confidential');#37=CC_DESIGN_DATE_AND_TIME_ASSIGNMENT(#41,#39,(#86));#38=CC_DESIGN_DATE_AND_TIME_ASSIGNMENT(#42,#40,(#35));#39=DATE_TIME_ROLE('creation_date');#40=DATE_TIME_ROLE('classification_date');#41=DATE_AND_TIME(#56,#46);#42=DATE_AND_TIME(#57,#47);#43=DATE_AND_TIME(#58,#48);#44=DATE_AND_TIME(#59,#49);#45=DATE_AND_TIME(#60,#50);#46=LOCAL_TIME(0,0,0.,#51);#47=LOCAL_TIME(0,0,0.,#52);#48=LOCAL_TIME(0,0,0.,#53);#49=LOCAL_TIME(0,0,0.,#54);#50=LOCAL_TIME(0,0,0.,#55);#51=COORDINATED_UNIVERSAL_TIME_OFFSET(0,0,.BEHIND.);#52=COORDINATED_UNIVERSAL_TIME_OFFSET(0,0,.BEHIND.);#53=COORDINATED_UNIVERSAL_TIME_OFFSET(0,0,.BEHIND.);#54=COORDINATED_UNIVERSAL_TIME_OFFSET(0,0,.BEHIND.);#55=COORDINATED_UNIVERSAL_TIME_OFFSET(0,0,.BEHIND.);#56=CALENDAR_DATE(0,1,1);#57=CALENDAR_DATE(0,1,1);#58=CALENDAR_DATE(0,1,1);#59=CALENDAR_DATE(0,1,1);井60=CALENDAR_DATE(0,1,1);#61=CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT(#69,#65,(#86,#88));#62=CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT(#70,#66,(#90));#63=CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT(#71,#67,(#88));#64=CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT(#72,#68,(#35));井65=PERSON_AND_ORGANIZATION_ROLE('creator');#66=PERSON_AND_ORGANIZATION_ROLE('design_owner');#67=PERSON_AND_ORGAN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