Why can't the general CNC gantry machining center have strong cutting ability like the traditional gantry milling machine? Workpieces need to maintain accuracy and improve efficiency. ....

The spindle of NC machining center needs stepless speed change, and the wider the speed change range, the worse the transmission characteristics; The traditional machine tool is a step-by-step speed change of motor and gearbox, and the transmission characteristics of the spindle are obviously better than those of CNC machine tools, so it bears a large cutting force.

The NC machining center is driven by ball screw and servo motor, which eliminates axial clearance and realizes high-precision and high-speed movement of workpiece. Traditional machine tools are driven by common lead screws and motors, and their rigidity is obviously better than that of CNC machine tools, but the dimensional accuracy of machining is poor.

If we want to ensure the machining dimensional accuracy and improve the machining efficiency, the most ideal thing is to purchase new numerical control equipment. If the funds are difficult, it is necessary to optimize the processing technology, reasonably design the fixture and select the cutting tool to improve the processing efficiency.