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车梳加工是现今汽车发动机曲轴主轴颈粗、半精加工时广泛应用的切削工艺。本文介绍了车梳加工的切削机理及其应用。通过车梳拉专用机床以及自行搭建的颤振实验平台来检测工件每时每刻的振动位置,以此来比较梳型刀片与普通车刀片的切削颤振情况和加工表面质量以及针对精加工的各切削参数对车梳加工切削颤振的影响。实验结果表明:在相同切削参数和切削余量下,梳型刀片的切削颤振大于C型刀片,加工表面粗糙度略低于C型刀片,切削效率则远远高于C型刀片;背吃刀量和进给速度增大时梳型刀片切削颤振增大,主轴转速增大时切削颤振减小。
Car comb processing is the main journal of the automobile engine crankshaft coarse, semi-finishing the cutting process is widely used. This paper introduces the cutting mechanism and its application of car comb processing. By combing the special machine tool and self-built flutter experimental platform to detect the vibration position of the workpiece at all times, in order to compare the comb-type blades and ordinary cutting blade chatter and the machining surface quality and for finishing Influence of Cutting Parameters on Chatter Chatter in Car Combing Machining. The experimental results show that under the same cutting parameters and cutting allowance, the chatter vibration of the comb blade is greater than that of the C-type blade, the machining surface roughness is slightly lower than that of the C-type blade, and the cutting efficiency is much higher than that of the C-type blade; When the cutting speed and feed rate increase, the chatter vibration of comb blade increases, and the cutting chatter decreases when the spindle speed increases.