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摘要：近年来数控技术高速发展，在外圆磨床领域，传统外圆磨床经过数控技术的革新，催生出了数控外圆磨床。我所研究的是其砂轮架以及磨头机构，砂轮架与磨头机构是组成数控外圆磨床的核心部件，加工过程中砂轮架部分运转精度与平稳性决定了零件的尺寸、磨头部分保证了被加工物的表面粗糙度、尺寸精度和圆度等技术要求。本论文从数控技术的大规模发展引伸到其在外圆磨床中的实际应用。通过借鉴国内外成品数控外圆磨床的基础上，总结并设计出了此方案。首先设计砂轮架部分，选择体壳材料、交流伺服电机通过同步带带动主轴，传动砂轮，磨削工件。其次设计磨头机构部分，高精度主轴、角接触球轴承等都体现了高精度要求。数控外圆磨床的优势是通过数控程序来实现恒线速磨削。数控加工是时下各种加工技术的发展趋势，因此对数控外圆磨床的深入理解与高度还原，即跟上了技术发展的脚步又系统地将知识与实践相融合。21243
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毕业论文关键词： 数控技术；恒线速；高精度
Design of grinding wheel and grinding mechanism of CNC Cylindrical
Abstract: In the high speed development of NC technology, the traditional cylindrical grinder gradually replaced by the CNC cylindrical. I study the grinding wheel and the grinding mechanism, grinding wheel and grinding head institution is a core component of grinder NC, which decides the machining process to ensure that the surface roughness requirements, size and roundness accuracy etc… In this paper, drawing from the large-scale development of NC technology, to practical application in the cylindrical grinder and explain the research purpose and significance. By reference to domestic and foreign products CNC cylindrical grinder, summarizes and designs the scheme. First select the AC servo motor through the synchronous belt drives the spindle to achieve the purpose of the grinding wheel grinding on the workpiece rotation The advantage of grinder NC is through the NC program to realize constant linear velocity grinding, high precision is also embodied in the. Grinding select high precision, long service life of the rolling bearing grinding head, not only conducive to mass production, its quality has been stable guarantee. NC machining is the development trend of the various processing technology, in-depth understanding of the CNC cylindrical grinder and height reduction, namely, to keep up with the pace of development and system technology to combine knowledge with practice.
KeyWords: NC technology ；Constant linear speed; high-precision
目 录
1 绪论 1
1.1 课题的目的与要求 1
1.2 数控外圆磨床简介 2
1.3 恒线速切削 2
1.4 恒线速难点 3
1.5 恒线速高速磨削 3
1.6 精密轴承磨头 3
1.7 动平衡的必要性 3
1.8 精密磨削 4
1.9 数控外圆磨床满足要求 4
2 课题内容 5
2.1 技术要求及参数： 5
2.2 方案综述: 5
3 砂轮架部分的设计 6
3．1 砂轮架体壳的设计 6
3.1.1 结构与技术要求 6
3.1.2 材料的选用 6
3.2 伺服电机的选用 6
3.2.1 伺服电机的选择 6
3.2.2 交流伺服电机的选择 7
3.3 同步带的设计 7
3.3.1 同步带的简述 7
3.3.2 同步带的张紧机构 8
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