The positioning accuracy is about 10 μ M. High precision machining center, resolution of 0.1 μ m, maximum feed rate of 15 ~ 100M / min, positioning accuracy of about 2 μ M. In the range of 2-10 μ m, the more is ± 5 μ m, which can be called precision grade.
NC machining center NC edit NC machining center is a kind of CNC machine tool with tool library and automatic tool change, which can carry out a variety of processing operations on the workpiece in a certain range.
The characteristics of machining parts on the machining center are: after the machined parts are clamped once, the CNC system can control the machine tool to automatically select and change the tool according to different working procedures; it can automatically change the spindle speed, feed rate, motion track of the cutter relative to the workpiece and other auxiliary functions, and automatically drill, countersink, ream, bore and screw on each machining surface of the workpiece Multi process processing such as grain, milling, etc. Because the machining center can finish many kinds of working procedures in a centralized and automatic way, it can avoid the artificial operation error, reduce the time of workpiece clamping, measuring and machine tool adjustment, as well as the time of workpiece turnover, handling and storage, and greatly improve the processing efficiency and accuracy, so it has good economic benefits. Machining center can be divided into vertical machining center and horizontal machining center according to the position of spindle in space.
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