论文部分内容阅读
为了加工高精度小球,研制了倒置式正四面体结构的研磨机。建立了小球加工时的动力学解析模型,并结合Matlab软件模拟的结果,深入分析了球与4研头之间的运动关系以及研头直径与加工覆盖面等之间的关系,探讨了加工精度随摩擦力矩、球的旋转轴变化的情况。同时进行了实验研究,结果表明:该结构适用于小球超精加工,加工后小球圆度可达0.02μm,表面粗糙度可达Ra=0.5nm,完善工艺后精度还能进一步提高。
In order to process high-precision pellets, developed inverted square tetrahedron structure of the mill. The dynamic analysis model of the ball processing is established. Combined with the results of Matlab software simulation, the relationship between the ball and the research head and the relationship between the diameter of the head and the processing coverage are deeply analyzed. The processing precision With the friction torque, the rotation axis of the ball changes. The experimental results show that the structure is suitable for the ultra-fine processing of pellets. The roundness of the pellets can be up to 0.02μm after processing, and the surface roughness can reach Ra = 0.5nm. The precision can be further improved after the process is completed.