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由于半闭环控制系统的数控机床在实际工作时存在反向间隙的问题,从而导致工作台进给速度滞后于电机转速,使工作台位移出现误差,降低了数控机床加工的精确度,为生产带来了负面影响。本文为了解决上述问题,系统的研究和分析了数控机床的高速加工伺服进给系统,并在此基础上建立了数学模型。通过对该模型采取仿真分析的方法,具体说明了数控机床在进行实际工作中产生的反向间隙问题,并且提出了解决方案。
As the semi-closed-loop control system of CNC machine tools in the actual existence of reverse clearance problems, resulting in table feed speed lags behind the motor speed, the table displacement error, reducing the accuracy of CNC machining, production for the belt There is a negative impact. In order to solve the above problems, this paper systematically researched and analyzed the high-speed machining servo feeding system of NC machine tool, and established the mathematical model on this basis. Through the method of simulation analysis of the model, the problem of backlash caused by NC machine tool during actual work is described in detail, and the solution is put forward.