《西门子公差系统.pdf》由会员分享，可在线阅读，更多相关《西门子公差系统.pdf（52页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、 UGS Corp.2007.All rights reserved.UGS PLM Software质量规划与生产验证解决方案 UGS Corp.2007.All rights reserved.UGS PLM Software议程议程?业务挑战?软件解决方案?成功用户参考 UGS Corp.2007.All rights reserved.UGS PLM SoftwareIndustry Awareness JD Powers Power Circle Ratings（2006质量研究）质量研究）?Only 4 out of 37 vehicle brands scored the hig
2、hest rating?All 4 are considered premium brands?Only 4 out of 37 vehicle brands scored the highest rating?All 4 are considered premium brandsResponses Include?Wind noise?Fit?Finish?Leaks?Squeaks?RattlesResponses Include?Wind noise?Fit?Finish?Leaks?Squeaks?RattlesDrive premium quality results across
3、entire portfolio offeringDrive premium quality results across entire portfolio offering UGS Corp.2007.All rights reserved.UGS PLM SoftwareIndustry Awareness Harbour Report UGS Corp.2007.All rights reserved.UGS PLM SoftwareIndustry Awareness Harbour Report UGS Corp.2007.All rights reserved.UGS PLM So
4、ftware产品设计和制造流程规划所面对的挑战产品设计和制造流程规划所面对的挑战Whats the variation of the gap between the door and the frame?Whats the process capability of the central console assembly?Which is the best way to assemble the components in order to minimize the variation of the gaps?UGS Corp.2007.All rights reserved.UGS PLM
5、 Software质量控制的意义质量控制的意义Product life cycleCost of ECN$DrawingDesign VerificationPrototypeProductionField RecallExponential CostProactive Vs Reactive1 11010100100 UGS Corp.2007.All rights reserved.UGS PLM Software需求需求?面向质量的设计?可制造性和可装配性的定义和验证?辨识符合用户需求的最经济的制造流程?预测公差影响和装配方法?预测制造能力?辨识流程中的关键环节和参数?监测获取制造结果，
6、以进行快速响应，改进制造计划 UGS Corp.2007.All rights reserved.UGS PLM SoftwarePLM based End to End Quality UGS Corp.2007.All rights reserved.UGS PLM SoftwareTeamcenter Visualization VSA用尺寸分析来减少变差，提高产品质量用尺寸分析来减少变差，提高产品质量?识别导致变差的公差和装配过程，快速进行“假设”分析，以优化公差、设计和装配过程。?在几何图形可用之前或之后创建基于特征的模型；在几何图形可用之前创建模型，可以在制造零件或切割工装之前帮助
7、驱动设计过程。?利用世界上功能最强大的变差装配制约引擎。?进行综合统计或仿真的最坏情况分析。?通过连接有限元分析结果，融合组件的柔性。?显示与三维几何图形连接的各种图形报表。UGS Corp.2007.All rights reserved.UGS PLM SoftwareTeamcenter Visualization VSA用尺寸分析来减少变差，提高产品质量用尺寸分析来减少变差，提高产品质量?用不同类型的分布来表示公差。?对分析进行扩展，支持用户定义的公式，比如齿轮侧隙、压力、失衡等等。?获取知识，重复使用模型；?为新的几何图形提供形态对由数千个零件组成的装配进行可视化处理，同时对来自多种
8、CAD 系统的数据进行分析一切都在一个标准的界面里面进行。?在Teamcenter Visualization VSA 里面添加实际制造功能数据，对造成生产制造问题的根本原因进行实时分析。?创建综合性的公差库，用于表示任何行业的制造过程。UGS Corp.2007.All rights reserved.UGS PLM Software什么是公差变化分析什么是公差变化分析?Block 1Block 2Block 3这装配的高度是多少?关键公差特性(CTQ)UGS Corp.2007.All rights reserved.UGS PLM Software零件公差零件公差50+/50+/-0.1
9、0.170+/70+/-0.10.1100+/100+/-0.20.2220+/220+/-?Block 1Block 2Block 3 UGS Corp.2007.All rights reserved.UGS PLM SoftwareSome Popular Techniques of Tolerance Analysis?“Hand Studies”?Worst Case Analysis?Root Mean Square(RMS)Methods?“Other Analytical Methods”?Monte Carlo Simulation?Vector Loop Method UG
10、S Corp.2007.All rights reserved.UGS PLM SoftwareHow the Monte Carlo simulation works UGS Corp.2007.All rights reserved.UGS PLM Software装配顺序装配顺序&装配方法装配方法Block AssemblyBlock 1Block 1Block 2Block 3Block 2Block 3220+/220+/-?UGS Corp.2007.All rights reserved.UGS PLM Software公差模拟公差模拟-0.2+0.299.73%0.13%0.1
11、3%3399.93Simulation 2100.05Simulation 1100.01Simulation 3Block 1100+/100+/-0.20.210099.79Simulation 4 UGS Corp.2007.All rights reserved.UGS PLM Software重复模拟重复模拟1 1 2 2 3 3Simulation=Simulation=1000010000 UGS Corp.2007.All rights reserved.UGS PLM Software关键公差特性（关键公差特性（CTQ）的计算）的计算CTQ char UGS Corp.200
12、7.All rights reserved.UGS PLM Software变化结果变化结果NominalNominal=220=220AverageAverage-3+3219.85219.85220.21220.21Total range=0.36Total range=0.36 UGS Corp.2007.All rights reserved.UGS PLM Software影响对象结果影响对象结果Block 350+/50+/-0.10.1Block 270+/70+/-0.10.1100+/100+/-0.20.2Block 1220220+0.21+0.21-0.150.15Bl
13、ock1Block1Block2Block2Block3Block348%48%28%28%24%24%UGS Corp.2007.All rights reserved.UGS PLM SoftwareAn electric motor UGS Corp.2007.All rights reserved.UGS PLM SoftwareWhich are the key characteristics?Gap betweenpartsAngle betweenparts UGS Corp.2007.All rights reserved.UGS PLM SoftwareThe toleran
14、ced partsA0.1B0.1 ACA0.25B0.5 AA0.3B C0.1A B CM24+0+0.021C0.5 A BA3.0B CTABLEBASEB0.5 AA0.25A0.3B C0.2A B CMC0.5 A B4.9+0.0-0.1MOTORA0.25C0.5 A B0.5 A0.1A B CM5.0+0.1-0.1B0.5 AARM UGS Corp.2007.All rights reserved.UGS PLM SoftwareA measurement chain UGS Corp.2007.All rights reserved.UGS PLM Software
15、The assembly UGS Corp.2007.All rights reserved.UGS PLM SoftwareThe assembly UGS Corp.2007.All rights reserved.UGS PLM SoftwareBaseBaseBaseThe assemblyAssemblyAssemblyAssemblyTableTableTable UGS Corp.2007.All rights reserved.UGS PLM SoftwareThe assemblyAssemblyAssemblyAssemblyTableTableTableBaseBaseB
16、aseMotorMotorMotor UGS Corp.2007.All rights reserved.UGS PLM SoftwareThe assemblyAssemblyAssemblyAssemblyTableTableTableBaseBaseBaseMotorMotorMotorArmArmArm UGS Corp.2007.All rights reserved.UGS PLM SoftwareNominal Value=4.5mmAssembly Key CharacteristicsAssemblyAssemblyAssemblyTableTableTableBaseBas
17、eBaseMotorMotorMotorArmArmArmGap betweenpartsLinear MeasurementBetween Feature X and Feature YLimits=+/-1.0GapGapGap UGS Corp.2007.All rights reserved.UGS PLM SoftwareNominal Value=120 degreesAssembly Key CharacteristicsAssemblyAssemblyAssemblyTableTableTableBaseBaseBaseMotorMotorMotorArmArmArmAngle
18、 betweenpartsAngular MesurementBetween Feature X and Feature YTolerance=+/-2.0GapGapGapAngleAngleAngle UGS Corp.2007.All rights reserved.UGS PLM SoftwareSimulation:Monte Carlo methodA0.25B0.5 AA0.3B C0.1A B CM24 H12C0.5 A BA3.0B Cdiameter 24 +0.021-0.000-0.000+0.02160.0000.0200.0100.0150.00599.73%99
19、.73%UGS Corp.2007.All rights reserved.UGS PLM SoftwareSimulation(1/3)diameter 24 +0.021-0.000-0.000+0.02160.0000.0200.0100.0150.00599.73%99.73%24.01124.00524.01024.01624.011 UGS Corp.2007.All rights reserved.UGS PLM SoftwareSimulation(2/3)Simulation=Simulation=1 1 2 2 3 3.UGS Corp.2007.All rights re
20、served.UGS PLM SoftwareSimulation(3/3)Simulation=Simulation=.UGS Corp.2007.All rights reserved.UGS PLM SoftwareNominalNominal=4.5=4.5-1.01.0+1.0+1.0MeanMean-3+3VariationsVariationsResults(1/3)UGS Corp.2007.All rights reserved.UGS PLM SoftwareContributorsContributorsBASE-FRONT-FACE SPF|3.0|A|B|C49.4%
21、MOTOR-SHAFT -POS|DIA0.2(M)|A|B|C11.8%ARM-HOLE-DIA+/-0.110.3%A0.1B0.1 ACA0.25B0.5AA0.3B C0.1A B CM24 H12C0.5 A BA3.0B CB0.5AA0.25A0.3B C0.2A B CMC0.5 A B4.9+0.0-0.1A0.25C0.5 A B0.5A0.1A B CM5.0+0.1-0.1B0.5AAll other tolerances contribute less than 10%Results(3/3)UGS Corp.2007.All rights reserved.UGS
22、PLM Software比较比较3D公差变化分析与手工计算公差变化分析与手工计算In term of:In term of:?AccuracyAccuracy精确性精确性?RealismRealism真实性真实性?FlexibilityFlexibility灵活性灵活性 UGS Corp.2007.All rights reserved.UGS PLM Software(In)精确性精确性精确性精确性/1?很困难手工处理复杂几何体很困难手工处理复杂几何体?很困难手工处理数百个公差很困难手工处理数百个公差?1D or 2D 1D or 2D 问题忽视了在问题忽视了在 3D 3D 空间的影响空间的
23、影响?形位公差（形位公差（GD&T GD&T）只有在）只有在 3D 3D 中才有显著的不可或缺的意义中才有显著的不可或缺的意义?很困难手工处理单个特征上的多设计约束很困难手工处理单个特征上的多设计约束 UGS Corp.2007.All rights reserved.UGS PLM Software锥锥基座基座3D几何的问题几何的问题忽略了忽略了.锥锥基座基座公差带公差带传统计算的限制传统计算的限制3D几何几何 UGS Corp.2007.All rights reserved.UGS PLM Software(In)精确性精确性精确性精确性/2 正态输入总会产生正态输出正态输入总会产生正态
24、输出0.00.5Clearance between pin and hole?Floating of a pin in a hole?所有公差都是正态分布所有公差都是正态分布(i.e(i.e 从试验从试验,车间数据车间数据.).)UGS Corp.2007.All rights reserved.UGS PLM Software真实性真实性/1 制造中统计上的变化制造中统计上的变化+=50.00+/-150.00+/-1100.00+/-?Worst Case:100+/Worst Case:100+/-2.0(Limit Stack)2.0(Limit Stack)RMS Method:10
25、0+/RMS Method:100+/-1.4141.414 Monte Carlo:100+/Monte Carlo:100+/-1.03 1.03 UGS Corp.2007.All rights reserved.UGS PLM Software真实性真实性/2由于装配顺序的不同公差变化也将不同 由于装配顺序的不同公差变化也将不同由于装配顺序的不同公差变化也将不同Var.=1.97Var.=1.97Var.=3.45Var.=3.4520+/-11000+/-1 UGS Corp.2007.All rights reserved.UGS PLM Software汽车领域的应用汽车领域的应
26、用?Complete BIW?Door assembly gap?Underbody assembly?Headlamp assembly gap?Roof mechanism for convertible?Windshield wipers assembly?Suspension alignment?Instrument panel assembly?Engine assembly?Transmission assembly?Clutch assembly?Piston refrigeration in High Performance Engine UGS Corp.2007.All r
27、ights reserved.UGS PLM SoftwareDemo发发动机动机装配装配 UGS Corp.2007.All rights reserved.UGS PLM SoftwareCustomer Successes UGS Corp.2007.All rights reserved.UGS PLM SoftwareFord Motor Co?Locations:Dearborn&Livonia,MI(USA);Coventry,England?Users:Dimensional Control(Management)/Quality engineers?Usage:Selecte
28、d as global dimensional analysis tool;vehicle fit&finish requirements,locator robustness and tolerance optimization,manufacturability,FEAD,critical drivetrainclearances.?Benefit:?Driving design changes early in the development process reducing prototype and launch issues,time to market and costs.?Di
29、visions:Manufacturing Vehicle Operations,Product Design,Powertrain,Transmission UGS Corp.2007.All rights reserved.UGS PLM SoftwareHP?Division:Printers?Location:North America,Europe,Asia/Pacific?Users:DM/Quality engineers?Usage:Selected as global dimensional analysis tool for all printer designs?Bene
30、fit:?Focused efforts on most important parts&dimensions leading to looser tolerances/reduced tooling&metrology costs?Identified optimum selection of Datum Features and dimensioning Scheme leading to a more robust design&lower part costs?Enabled confidence to go with no adjust design leading to the e
31、limination of manufacturing bottlenecks UGS Corp.2007.All rights reserved.UGS PLM SoftwareMagna?Division:Magna Steyr(vehicle engineering)?Location:Graz(Austria)?Users:process engineers?Usage:?gaps and flushness of BIW subassemblies such as doors,fenders?rear axle alignments(toe,camber angles)?Benefi
32、t:reduced development time through early identification of critical parameters(such as tolerances or assembly operations)that leads to assembly optimization along with prediction of process capabilities UGS Corp.2007.All rights reserved.UGS PLM SoftwareSiemens VDO?Division:ICM,design&developement?Lo
33、cation:Schwalbach/Ts,Babenhausen(Germany)?Users:design engineer?Usage:?gaps between IP components(such as airbag vspanel,glove compartment)?analysis of gap diagrams?Benefit:?proof of process capabilities?provide proper tolerance concepts to customers UGS Corp.2007.All rights reserved.UGS PLM Softwar
34、eKarmann?Division:Roof Systems,BIW,Final Assembly?Location:Osnabruck(Germany)?User:simulation engineer?Usage:?Roof mechanism(alignments,gaps,flushness between roof and BIW,in different positions of the mechanism)?Clearance between sheet metal parts and safety roll bar?Benefit:?Shorten development time by demonstrate Process Capability without building physical prototypes