CAJ | 학술논문

提出一种实用的通过主轴转速寻优调整对再生型切削颤振进行自动控制的方法.机床主轴前后两转切削颤振信号相位差的最优值为270°,如果切削过程即将发生颤振,可以通过调整主轴转速使相位差为270°把切削过程由不稳定区调整到稳定区.理论分析和试验结果表明,主轴转速寻优调整方法可以有效地控制再生型切削颤振.文中同时提出了一套性能可靠的主轴转速寻优控制系统,其再生型颤振控制方法不需要对机床系统进行辨识,实施起来简单易行,故具有广阔的生产应用前景.
제출일충실용적통과주축전속심우조정대재생형절삭전진진행자동공제적방법.궤상주축전후량전절삭전진신호상위차적최우치위270°,여과절삭과정즉장발생전진,가이통과조정주축전속사상위차위270°파절삭과정유불은정구조정도은정구.이론분석화시험결과표명,주축전속심우조정방법가이유효지공제재생형절삭전진.문중동시제출료일투성능가고적주축전속심우공제계통,기재생형전진공제방법불수요대궤상계통진행변식,실시기래간단역행,고구유엄활적생산응용전경.
An applicable method to control regenerative cutting chatter automatically based on the optimal regulation of spindle speed is introduced. The optimal value of the phase shift angle of the regenerative chatter signal between the two successive cuts is 270°. The cutting process can be adjusted from the unstable region to stable one whenever regenerative chatter occurs if the phase shift angle is kept 270° by the optimal regulation of spindle speed. The theoretical analysis and the experimental results prove that the optimal regulation of spindle speed can effectively control regenerative cutting chatter. In addition, a reliablelly optimal control system of reliable spindle speed is presented. There is no need for system identification of the machine tool, and it is easy to put this regenerative chatter control method into practice, so the method has excellent application prospect.