CNC milling machine is a kind of mechanical manufacturing equipment with the comprehensive application of electronic computer, automatic control, servo drive, precision measurement and new mechanical structure. Its processing surface shape is generally composed of straight line, arc or another curve. By constantly changing the relative position between the tool and the workpiece, the selected milling tool speed matches, so that the tool cuts the workpiece, so that a variety of different shapes of workpieces can be processed.
CNC milling machine is divided into two categories without knife library and knife library. The CNC milling machine with a knife library is also known as the processing center.
Classification by machine tool form: horizontal processing center, vertical processing center, gantry processing center, universal processing center.
According to the number of motion coordinates of the processing center and the simultaneously controlled coordinates: three axis and two linkage, three axis and three linkage, four axis and three linkage, five axis and four linkage, six axis and five linkages, etc.
According to the number and function of the workbench: you have a single workbench processing center, a double workbench processing center, and a multi-workbench processing center.
According to the processing precision points: with an ordinary processing center and a high-precision processing center. General processing center, the resolution of 1 μm, maximum feed speed of 15~25m/min, positioning accuracy is about lOμm. High-precision machining center, the resolution of 0.1 μm, maximum feed speed is 15~100m/min, positioning accuracy is about 2 μm. Between 2~lOμm, in ± 5 μm, can be called precision.
This new machine tool has the advantages of strong adaptability, high processing precision, stable processing quality and high production efficiency.
