精密回转类零件磨削制备实验研究  

The Experimental Research on the Manufacturing of Precision Rotary Parts

作　　者：闫如忠[1] 熊学文 YAN Ru-zhong;XIONG Xue-wen(Mechanical Engineering Department,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学机械工程学院,上海201620

出　　处：《机械设计与制造》2018年第12期185-187,191,共4页Machinery Design & Manufacture

摘　　要：回转类零件是制造领域中十分重要的一类零件,对其制造精度要求也日渐提高。针对目前精密回转类零件的制备成本高昂的情况,通过对微粉砂轮磨削机理及磨削过程进行研究,提出了圆度逼近理论使工件轮廓法向误差收敛,使其趋于理论轮廓。根据工件实际轮廓与理论轮廓之间的法向误差,提出速度补偿代替工件形状误差补偿的实验修整方法。最后利用普通外圆磨床对直径为125mm的GCr15回转类零件进行磨削实验,经过多次误差补偿循环修整磨削实验,其圆度从10.34μm改善至0.35μm,达到了精密生产的需求。Rotary parts is one kind of very important parts in manufacturing field, and the precision manufacturing technology of rotary parts is deeply demanded. However, the preparation of high precision rotary parts is mainly by high precision machine and it resulting in high expense at present. Through studying the grinding mechanism of micro powder grinding wheel, it puts forward the theory of roundness approximation to make the radical error convergence, thus, to get the theory outline. Meanwhile, it puts forward the grinding method which uses the velocity compensation to replace the normal error compensation according to the radial deviation between the actual outline and the theory outline. Finally, it uses ordinary cylindrical grinder to grind GCr15 rotary parts whose diameter is 125mm. After several compensation experiments, the roundness of the rotary partsimproves to 0.35μm from 10.34μm and it meets the demand of precision manufacturing.

关 键 词：回转类零件 微粉磨削 误差补偿 形状误差 精密加工 

分 类 号：TH16[机械工程—机械制造及自动化] TG58[金属学及工艺—金属切削加工及机床]