切入式滚子凸度超精原理及油石尺寸对超精效果的影响

The Superfinishing Principle of In-feed Roller and the Influence of Oilstone Size on the Superfinishing Effect

通过对SUPFINA公司的切入式滚子超精机Roller Flex 778加工原理及油石夹具的结构分析,在现有两幅油石夹具只能安装宽度为4mm和8mm油石的情况下,设计制作一种辅助工装,保证油石装夹的中心不变,扩展安装更多不同宽度的油石,以满足较大直径滚子超精加工的需求。与此同时,利用窄油石的插补进给工艺参数来验证油石尺寸对超精效果的影响,结果表明:油石宽度影响圆度、波纹度的改善,长度影响母线轮廓成形,高度影响超精稳定性和加工效率。

Through the analysis of the processing principle of the in-feed roller superfinishing machine Roller Flex 778 and the structure of the oilstone clamp of SUPFINA Company, in the case that the existing two oilstone clamps can only install 4 mm and8 mm oilstone, this paper designs and makes a kind of auxiliary tooling to ensure that the center of the oilstone clamping remains unchanged and expand the installation of more oilstones of different widths to meet the needs of superfinishing of larger diameter rollers. At the same time, the interpolation feed process parameters of narrow oilstone are used to verify the effect of oilstone size on ultra-precision effect. The results show that the width of oilstone affects the improvement of roundness and waviness, and the length affects the forming of busbar contour, its height affects super-precision stability and processing efficiency.