CNC lathe refers to the machine tool that mainly uses the cutter of CNC lathe to turn the rotating workpiece. Generally, it refers to that the cutting tool of the lathe is fixed at a specific position on the machine tool, and the workpiece rotates along the axis under the clamping of the fixture, and is cut when it is close to the knife edge. Therefore, it is mainly suitable for processing shafts, discs, sleeves and other workpieces with reverse appearance. It is the most widely used machine tool in machinery manufacturing and repair factories. Common CNC milling machines, drilling machines and other rotating processing machines are extended from CNC lathes. Its processing principle is that the workpiece is rotating and the tool is fixed.
CNC milling machine refers to the machine tool that mainly uses milling cutter to process various appearances on the workpiece. Its performance is that the rotation movement of the milling cutter is the main movement, and the workpiece and the milling cutter can move into the feed movement. That is to say, its objects are fixed at a certain position of the machine tool, and the milling cutter makes high-speed rotation movement under the clamping of the fixture. When touching the workpiece, it can process planes and grooves on its surface, and can also process various curved surfaces, gears and other NC milling machines. NC milling machines use milling cutters to mill the workpiece, and can process planes (horizontal plane, vertical plane), grooves (keyway, T-shaped groove, dovetail groove, etc.) Gear parts (gears, spline shafts, sprockets, helical surfaces (threads, spiral grooves) and various curved surfaces. In addition, it can also be used for processing the outer surface and inner hole of the reverse body and blocking operations. Therefore, the productivity of the CNC milling machine is high due to the intermittent cutting of multiple cutters. The processing principle of the CNC milling machine is that the workpiece is fixed and the cutter is rotating.
Therefore, the difference between CNC lathe and CNC milling machine is that the workpiece of CNC lathe rotates and the cutter is fixed, while the workpiece of CNC milling machine is fixed and the cutter rotates.