山西机电职业技术学院机械工程系

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1、山西机电职业技术学院机械工程系毕业设计说明书题目：连杆支座零件计算机辅助结构设计系别：机械工程系专业：计算机辅助设计与制造班级：计辅0806姓名：宋爱萍学号：28230237指导老师：赵翠萍实践单位：襄垣仁达机电设备有限公司目录序言························································11.零件的分析·····················································11.1零件的作用················································11.2

2、零件的工艺分析············································11.3确定生产类型··············································21.4确定毛坯··················································22.工艺规程设计····················································32.1选择定位基准···············································32.2制定工艺路线·

3、··············································42.3机械加工余量、工序尺寸及公差的确定························73.总结····························································31参考文献··························································32摘要杠杆式力标准机的工作原理是建立在力的动力学效应和杠杆放大原理基础上的,是通过对具有精确质量的重力砝码进行准确放大从而产生标准力值的杠杆式标准

4、力源装置。本文在传统的杠杆式力标准机的基础上提出了变臂比杠杆式精密力源技术及其装置的问题,论述了通过改变和精确控制固定质量砝码沿杠杆臂长方向的位置,达到准确施加力值的目的这一力源技术方法,研究了这种力源的误差来源与控制、工作效率、经济成本及结构实现等问题,据此建立了变臂比杠杆式精密力源技术理论基础。关键词：动力；技术；杠杆臂长ABSTRACTForceStandardMachinewhichisequippedwithstandardforcesource,canachievethecalibrationofforcemeasuringapparatus.loadcellperfo

5、rmanceindexiscalibratedbyforcestandardmachineinloadcellproductionindustry.forcestandardwhichisanimportantlinkofforcetransfersystemiswidelyusedinimportantdepartmentsofourcountry,suchasmetrologicalservice,researchdepartmentanddynamometerproductionandusedepartment.Keyword:motivation；technology；br

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