The cutting of the machine tool is realized by the relative motion between the tool and the workpiece. The motion can be divided into two types: surface forming motion and auxiliary motion. (1) Surface forming motion is a motion that causes a workpiece to obtain a desired surface shape and size, and includes main motion, feed motion, and cut motion. The main motion is the main motion when peeling off excess material from the workpiece blank. It can be the rotary motion of the workpiece (such as turning), linear motion (such as planing on a planer), or the rotary motion of the tool (such as Milling and drilling) or linear motion (such as cutting and broaching); the feed motion is the movement of the tool and the part to be machined to move, so that the cutting can continue, such as the tool holder slide along the machine guide when turning the outer circle The movement of the cutting motion is a movement that cuts the tool into the surface of the workpiece to a certain depth. The function is to cut a certain thickness of material from the surface of the workpiece during each cutting stroke, such as the transverse cutting motion of the small tool holder when turning the outer circle. (2) Auxiliary movement mainly includes the rapid approach and exit of the tool or workpiece, the adjustment of the position of the machine tool, the indexing of the workpiece, the indexing of the tool holder, the feeding of the material, the starting, the shifting, the reversing, the stopping and the automatic tool changing. High Quality Magnetic Rotor Magnet,Magnetic Rotor Magnet,Wind Turbine Magnet YangYi Magnetics Co., Ltd. , http://www.hz-magnets.com