基于运动控制器的砂轮数控修形软件的设计与开发

发布时间：2018-02-26 15:45

本文关键词： 砂轮修形开放式数控技术成形砂轮重构双轴联动　出处：《武汉理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：成形磨削是把砂轮加工成与工件型面完全吻合的反型面,然后再以此砂轮进行对工件磨削,使其获得所需的形状,是工业生产中常用的一种精加工方法。由于成形砂轮表面与被加工工件型面完全接触,成形砂轮的形状精度、尺寸精度、表面质量将直接影响被加工工件的最终精度,因此,成形砂轮的修形加工研究是提高成形磨削加工精度的重点之一。传统的砂轮修形方法无法满足现今工业生产的高精度要求,尤其是加工复杂型面的成形砂轮。随着数控技术的发展,对高精度高效率的砂轮修形系统的需求极为迫切。在实际的生产过程中,我们往往最先得到的是工件的设计图纸以及工件的参数,而作为磨削工具的成形砂轮的参数却是未知的,因此如何从待磨削工件参数得到成形砂轮的参数更是急需解决的问题。本文在研究砂轮修形原理和工艺的基础上,将砂轮修形技术与砂轮重构技术、数控技术结合,开发了基于“PC+ACS运动控制器”的开放式结构的数控砂轮修形系统软件,具体内容如下;(1)研究精密双驱砂轮修形机的工作原理和工作特点的,完成系统总体控制方案设计和系统硬件选型,分析修形系统需要实现的功能,完成系统软件总体设计。(2)研究成形砂轮参数化加工技术和重构加工技术,不仅可以根据已设计的砂轮进行参数化加工,还可以由待磨削工件的几何参数信息重构出成形砂轮母线进行加工的重构功能。(3)研究自动编程技术及数据库技术,实现由砂轮参数或待磨削工件参数信息模拟刀具加工轨迹,直接生成数控加工程序功能,建立砂轮、工件信息数据库及数控加工程序库,方便用户调用,减少重复操作,提高砂轮修形效率。(4)研究ACS运动控制器的性能、特点和ACS运动控制器程序的运行特点,进行基于运动控制器的双轴联动的伺服控制实验,验证砂轮母线轮廓加工轨迹控制的可行性。
[Abstract]:Forming grinding is machining the grinding wheel into an inverse surface that matches the shape of the workpiece, and then grinding the workpiece with the wheel to obtain the desired shape. The shape precision, dimension precision and surface quality of the shaped grinding wheel will directly affect the final precision of the workpiece, because the surface of the formed grinding wheel is in complete contact with the surface of the workpiece being machined, and the shape accuracy, dimension accuracy and surface quality of the formed grinding wheel will directly affect the final precision of the workpiece being processed. The research on the shape modification of forming grinding wheel is one of the key points to improve the precision of forming grinding. The traditional grinding wheel modification method can not meet the requirement of high precision in industrial production nowadays. With the development of numerical control technology, the need of high precision and high efficiency grinding wheel modification system is very urgent. In the actual production process, What we usually get first is the design drawing of the workpiece and the parameters of the workpiece, but the parameters of the grinding wheel, which is used as the grinding tool, are unknown. Therefore, it is urgent to solve the problem of how to obtain the parameters of the grinding wheel from the parameters of the workpiece to be grinding. In this paper, the grinding wheel modification technology is combined with the grinding wheel reconstruction technology and numerical control technology, on the basis of studying the grinding wheel modification principle and technology. The NC grinding wheel modification system software based on "PC ACS motion controller" is developed. The main contents are as follows: 1) the working principle and working characteristics of the precision double-drive grinding wheel modification machine are studied. Complete the overall control scheme design and hardware selection of the system, analyze the functions of the modification system, complete the overall design of the system software. 2) study the parameterized machining technology and the reconstruction processing technology of the forming grinding wheel. Not only the parameterized machining can be carried out according to the designed grinding wheel, but also the reconstruction function of forming grinding wheel busbar can be reconstructed from the geometric parameter information of the workpiece to be ground. The automatic programming technology and database technology can be studied. The tool path is simulated by grinding wheel parameter or workpiece parameter information, NC machining program function is generated directly, grinding wheel, workpiece information database and NC machining program library are established, which is convenient for user to call and reduce repeated operation. Improving the efficiency of grinding wheel modification. (4) the performance and characteristics of ACS motion controller and the running characteristics of ACS motion controller program are studied, and the servo control experiment based on the motion controller is carried out. The feasibility of track control of grinding wheel busbar contour machining is verified.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TG743;TG659

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