一种基于一面两孔定位和夹紧一体化的新型高精度气动夹具的设计

20086366MACHINETOOL&HYDRAULICSJun2008Vol36No6:2008-04-02:,,1975,,,,:13316011526,E-mai:llxw1234@163com一种基于一面两孔定位和夹紧一体化的新型高精度气动夹具的设计李湘伟1,2,柳义筠3,陈坚4(1广东工业大学,广州510090;2广东轻工职业技术学院,广州510300;3广州科技贸易职业学院,广州511442;4广州本田汽车有限公司,广州510700):,,,:;;:TH138:B:1001-3881(2008)6-043-3DesignofaNewTypeHighPrecisionPneumaticClampingDeviceBasedonPositionandClampingIntegrationofOnePlaneandTwoHolesLIXiangwei1,2,LIUYijun3,CHENJian4(1GuangdongUniversityofTechnoloy,Guangzhou510090,China;2GuangdongIndustryTechnicalCollege,Guangzhou510300,China;3GuangzhouPolytechnicofScienceandTrade,Guangzhou511442,China;4GuangzhouHondaAutomobileCo,Ltd,Guangzhou510700,China)Abstract:Theworkingprinciple,erroranalysisanddefectsoftraditionalpositionandclampingtechniquebasedononeplaneandtwoholeswereintroduced.Anewtypehighprecisionpneumaticclampingdevicebasedonpositionandclampingintegrationofoneplaneandtwoholeswasdesigned.Theworkingprinciple,structure,pneumaticprincipleandclampingprocessofthenewtypepneumaticclampingdeviceweregiven.Thenewclampingdevicehavemanyvirtues,suchashighpositionprecision,compactstructure,convenientoperatingprocedure,highworkingefficiency,littlelaborintensity.Keywords:Clampingdevice;Oneplaneandtwoholes;Pneumatics111传统一面两孔组合定位原理及装夹过程,,,,,,,1,,,,xyz3;xy2;,z,1!2!3!4!O15!6!7!8!O2112传统一面两孔组合定位误差分析,,O1O2,2O1,2,,:=D1+d1+X1min:D1;d1;X1min(),,,2,,:2=2arctanD1+d1+X1min+D2+d2+X2min2L:D1D2;d1d2;X1minX2min,,O1D1d1O1X1O2D2d2O2X2L,,X1X2,,L,6,:,;,,,;,,221基于定位孔自定心弹性开口套的设计,,,,,,,(),31!25!36!4!3,,3(a),4,,32∀,2mm,,,,4,,,,,,3(b),,z,,22拉杆的气压传动原理1!234!5!6!79!8!4#44#36,,,4,,,06MPa,23夹具装夹过程5,,,,,,,,,,,,,,,;,,,,1!2!3!4!5!6!7!8!9!10!11!53(1),,,,,,(2),,,,,,,,,(3),,,(4),,,,6,,,(5),,,,T8,,,WEDM4()T8,,,,,,,,4,,,,,,,:()∃1%.[M].:,1999.(下转第58页)#45#6::(1)115+64+8=187ms3208/min(2)6mm,0,,,32带负载时的仿真及分析,,,,,,6!9:(1),6mm119ms,70ms,T=119+70+8=197ms304/min(2)0049m/s,8ms0052m/s,,,0048m/s(3),1265MPa,(4),1265MPa,,(5),,,,,70ms4(1),,;(2),6mm300/min,∃1%,.[J].,2005(1):31-35.∃2%,.PWM[J].,2002.∃3%JochenPoh.lMopellingandSimulationofaFast2/2SwttchingValve.FluidandMechanicalEngineeringSystems,Sweden.∃4%,.[J].,2003(4):48-50.∃5%.Simulink4[M].:,2002.∃6%.[M].:,1994.(上接第45页)∃2%.[M].:,1998.∃3%.[M].:,2000.∃4%.[M].:,2000.∃5%.[M].:,2005.#58#36