一、曲轴铣削加工的发展过去,曲轴在磨加工前一般采用专门车床或普通曲轴铣床加工主轴颈、曲柄侧面及连杆轴颈。但是经过长期实践,人们发现这种加工方式存在很多缺点,如: (1) 刀具寿命低,需要频繁地更換刀具,换刀时间长,造成停机时间过多; (2) 更换刀具吋,因调整技术熟练程度引起的工件精度波动较大; First, the development of crankshaft milling In the past, the crankshaft grinding before the general use of special lathe or ordinary crankshaft milling machining main journal, crank side and connecting rod journal. However, after long-term practice, people find that this processing method has many shortcomings, such as: (1) low tool life, requiring frequent tool change, tool changeover for a long time, resulting in excessive downtime; (2) The precision of the workpiece caused by the proficiency of technology fluctuates greatly.