Machine tools like cnc machining center, are really widely used in the various industry. And here, just take the cnc milling machine for the target of the topic. It is extensively used in manufacturing of the die and the box-type parts, and of course many other workpiece in a variety of industry. With the increasing demand of the quality in mechanical product, a much higher machining precision is thus needed. And also, this is the trend of the machine tools industry-higher precision, higher stability and tech-innovation.
The cutting force, however, induced error that will definitely affects the machining accuracy of the workpiece very much. And moreover, it is really difficult to measure the exact cutting force of the milling machine. Thus, in order to deal with this problem and to achieve high precision, a motor current-based cutting force induced error detection and modeling method is a great method.
The motor current is obtained from the window function of the Fanuc CNC system. The cutting force induced error model is established according to the least-square method. The motor current-based error model can implement the cutting force induced error fitting effectively. This method adopted can make the fitting accuracy of X, Y, and Z-axis to be 97%, 96%, and 84%, respectively.
Do you agree with the cutting force induced error model for cnc milling machine that mentioned above?
