_一种新型金相试样抛光机整体结构设计摘要为了提高金相抛光机的抛光速度和质量，在研究分析传统抛光机基础上，通过对抛光机机械部分的设计及控制部分的构思，使抛光机能够实现多次调节抛光压力，实现抛光盘旋转速度不同模式切换等功能。本文通过对金相试样抛光机机械部分的动力头、加减压机构、齿轮箱及夹具的设计，达到了抛光过程平稳、抛光均匀、抛光质量高的优点。同时通过PID模糊控制系统实现自动调压，调速及加工时间控制的目的。关键词：新型；金相试样；抛光机；机械抛光AbstractInordertoimprovethepolishingspeedandqualityofmetallographicpolishingmachine,onthebasisofstudyingandanalyzingthetraditionalpolishingmachine,throughthedesignofthemechanicalpartandtheconceptionofthecontrolpartofthepolishingmachine,thepolishingpressurecanbeadjustedmanytimes.Thefunctionofdifferentmodeswitchingofrotatingspeedofthrowingdiscisrealized.Inthispaper,thepowerhead,decompressionmechanism,gearboxandfixtureofthemechanicalpartofthemetallographicsamplepolishingmachinearedesignedtoachievetheadvantagesofstablepolishingprocess,uniformpolishingandhighpolishingquality.Atthesametime,thepurposeofautomaticvoltageregulation,speedregulationandprocessingtimecontrolisrealizedbyPIDfuzzycontrolsystem.Keywords:newtype;Newtype;metallographicsample;polishingmachine;mechanicalpolishing.目录1绪论...................................................................11.1设计的目的和意义....................................................11.2金相试样抛光机的国内外研究状况......................................11.2.1国外抛光机的性能与特点..........................................11.2.2国内抛光机的性能与特点..........................................21.2.3讨论............................................................22金相试样抛光机设计要求及方案确定..................................42.1设计要求............................................................42.2金相试样抛光机整体方案的确定........................................42.2.1金相试样抛光机类型分析..........................................42.2.2金相试样抛光机方案比较..........................................52.2.3综合考虑选出最佳设计方案........................................63金相试样抛光机机械设计..............................................73.1动力头的设计........................................................73.2加减压机构的机械设计................................................93.3齿轮箱的设计.......................................................103.3.1齿轮设计........................................................103.3.2.齿轮轴的设计...................................................153.3.3丝杠的设计......................................................173.4电机的计算选择......................................................203.5抛光盘动力源电机的计算选择..........................................213.6带轮的计算选择.....................................................224夹具设计..............................................................245金相试样抛光机调速部分设计........................................255.1显示面板设计.......................................................255.2金相试样抛光机控制系统整体框架设计思想..............................265.3伺服电机的调速研究.................................................266总结..................................................................29参考文献................................................................30致谢.......................
