本文从理论上阐述了大刃倾角外园精车刀的工作原理,并采用了修光刃付后刀面的熨平作用来提高加工光洁度,同时介绍了获得负后角的调整计算方法。文中所采用的机夹可转位大刃倾角外园精车刀,具有结构简单、刃磨方便、刀片利用率高、加工质量稳定、能实现以车代磨等优点。 This paper elaborates the working principle of a large blade angle finishing machine with a sharp edge in theory and uses the effect of sharpening the shaving blade to improve the finish of the machining. At the same time, the adjustment calculation method of obtaining the negative relief angle is introduced. The machine used in this paper can be indexable blade inclination outside garden finishing tool, has the advantages of simple structure, easy sharpening, high utilization of the blade, stable processing quality, can achieve the purpose of grinding on behalf of the vehicle.