数控外圆磨床砂轮架及磨头机构的设计+CAD图纸
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