How to eliminate the oscillation of the CNC machining center combination machine?
CNC machining combined machine tools are semi-automatic or automatic special-purpose machine tools based on common parts and special parts and fixtures designed according to the specific shape and machining process of the workpiece.The combined machine tools are generally used for machining boxes or special-shaped parts.The oscillating problem of the machine tool has been plaguing the working people.How to reduce the impact of the combined machine tool oscillation?Jiexiang CNC machining center brings you four methods.
1.Add a proportional integrator.The proportional integrator is a multi-function controller that not only effectively proportionalizes the current and voltage signals,but also adjusts the output signal lag to a leading problem.
2.Reduce the load inertia ratio.The load inertia ratio is generally set at about 70%of the parameter shown when vibration occurs.If the fault cannot be eliminated,it is not appropriate to continue to reduce the parameter value.
3.Reduce the position loop gain.There is a reference standard value in the servo system.Oscillation can reduce the gain appropriately,but it cannot be reduced too much because the steady-state error of the system is guaranteed.
4.Oscillation caused by the closed loop servo system.Some combined servo systems use a semi-closed loop device,and the full closed loop servo system must be parameterized under the premise that its local semi-closed loop system does not oscillate,so the two are similar.
Through the above several methods,the CNC machining combined machine tool can get some relief.However,for the high-frequency oscillation of the combined machine tool,a first-order low-pass filtering link can be added to the speed loop,which is a torque filter to alleviate this.A phenomenon.Handling the problem of machine tool turbulence,the quality of CNC machining parts will be better guaranteed.