丝杠磨床在线检测与砂轮修整技术研究.pdf

声 明本学位论文是我在导师的指导下取得的研究成果，尽我所知，在本学位论文中，除了加以标注和致谢的部分外，不包含其他人已经发表或公布过的研究成果，也不包含我为获得任何教育机构的学位或学历而使用过的材料与我一同工作的同事对本学位论文做出的贡献均已在论文中作了明确的说明研究生签名：-三h扯 -1．夕l p年弓月，]日学位论文使用授权声明南京理工大学有权保存本学位论文的电子和纸质文档，可以借阅或上网公布本学位论文的部分或全部内容，可以向有关部门或机构送交并授权其保存、借阅或上网公布本学位论文的部分或全部内容对于保密论文，按保密的有关规定和程序处理研究生签名： Ⅻ 乙卅年jJl,'7H_]硕士论文 丝杠磨床j摘 要本课题以江苏省创新基金项目“精密数控螺纹磨床智能磨削方法与关键技术研究"为背景，针对丝杠磨床检测与砂轮修整技术现状的不足，设计开发新型丝杠磨床检测装置及方法和适应性更强的新型砂轮修整器，解决国内丝杠磨床检测与砂轮修整现存的问题，提高滚珠丝杠磨削质量和磨削过程的自动化水平通过对当前的丝杠磨床检测方法及砂轮修整技术归纳，提出了一种丝杠滚道螺旋线误差检测以及间接检测丝杠磨削用砂轮形貌的新方法，并且设计了一种新型并联机构砂轮修整器。

丝杠磨削用砂轮形貌检测是通过检测滚珠丝杠形面间接推出砂轮轮廓形状，从而判断砂轮是否需要修整；在新型砂轮修整器结构设计方面，有别于传统串联式机械结构，通过具有三个自由度的并联结构来实现对丝杠磨削用砂轮进行修整的运动功能针对具体的丝杠滚道螺旋线误差检测，对其构成的硬件系统作相应描述，完成了螺旋线微动装置的结构设计，并结合结构设计作相应的分析在满足砂轮修整器设计要求的前提下，搭建了其控制系统，完成了新型砂轮修整器旋转平台、固定平台、运动平台和伸缩平台四部分的结构设计与分析在新型砂轮修整器结构设计基础上，计算出此砂轮修整器自由度，求出其运动学正反解，并采用蒙特卡洛法对其工作空间进行了分析结果表明工作空间符合设计要求使用虚拟样机ADAMS软件作运动学仿真，验证了该砂轮修整器的运动功能采用微分法建立了该新型砂轮修整器的误差模型，结合具体的丝杠砂轮修整过程，针对此微分法对提出的砂轮修整器的运动精度使用Matlab软件进行了仿真，验证了所提出的砂轮修整器的可行性最后，通过刚柔耦合动力学仿真，并与刚体动力学仿真结果进行对比，结果表明其精度在可控范围之内通过本文研究，建立了丝杠磨床检测系统，完成了螺旋线微动装置和新型砂轮修整器的设计工作，且该两装置及方法均已申请国家发明专利。

相信该部分的完成对滚珠丝杠磨削质量和磨削过程的自动化水平的提高有一定的帮助关键词：检测，并联机构，砂轮修整器，误差模型，精度分析，刚柔耦合Abstract 硕士论文AbstractBased on Jiangsu Province innovation fund project‘The intelligent grinding methodSand key technologies of precision CNC thread grinder’，this paper aimed at thread grinderon—line detection and grinding wheel dressing technology．A new on—line detection device andmore adaptable grinding wheel dresser were designed．These devices are beneficial to solvethe existing on-line detection and grinding wheel dressing problems and can improve thequality of ball screw grinding and grinding process automation level．On the basis of summarizing modem on-line detection and grinding wheel dressingtechnology,ball screw helix error detection method and grinding wheel topography detectionmethod were proposed．Through the online ball screw appearance detecting，the grindingwheel detection indirectly obtained grinding wheel topography,then whether grinding wheelneed to be dressed Can be judged．Meantime，a new grinding wheel dresser was designed．Different from the traditional grinding wheel dresser,the new grinding wheel dresser Wagmade up of three—DOF Parallel mechanical structure．Aiming to the method of ball screw helix error detection,based on the selection ofhardware system，the structure of helix fretting eqmpment Was designed and analyzed．On thepremise of meeting the grinding wheel dresser design requirements，its control system Wagbuilt,the structure of grindmg wheel dresser which composed of rotating platform,fixedplatform，moving platform and telescopic platform were designed and analyzed．To test and verify the new design，the DOF of the new grinding wheel dresser Wagcalculated，positive and negative solutions of its kinematics were analyzed and given,itsworkspace Was also drawn by Monte Carlo Method．The results show that its workspacemeets the requirement of the grinding wheel dressing．Then,through the simulationimplemented of ADAMS software，the motion function of the grinding wheel dresser wagverified．The error model of grinding wheel dresser WaS established by differentiation,the motionprecision of the grinding wheel dresser Wag also verified through the simulation implementedby Matlab software．Finally,compared the rigid-flexible coupling dynamic simulation withthe rigid body dynamic simulation results，it Can demonstrate that the accuracy meets therequiremem．The online detection system of screw grinder Was established by the paper research，andthe structure of helix fretting equipment and new grinding wheel dresser were designed．Then]堡主丝苎一 丝杠磨床检测与砂轮修整技术研究——————————————————————————————————————=：二=：：=：：：：：：：：=兰竺：：：==：：!two devices and methods have been applied for national invention patent．These are beneficialto Improve the quality of ball screw grinding and grinding process automation level．Key words：on-line detection,parallel mechanism，grinding wheel dresser,error model，precision analysis，rigid—flexible couplingIll目录 硕士论文目 录摘|晏．．。

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