The machining surface shape of CNC milling machines is generally composed of straight lines, arcs, or other curves. Ordinary CNC machining milling machine operators according to the requirements of the drawings。Constantly changing the relative position between the tool and the workpiece,In combination with the selected CNC milling cutter speed,Make the tool cut the workpiece,Can process a variety of different shapes of workpieces。
　　CNC machining is the division of the coordinates of the tool and the workpiece into the smallest unit amount, that is,the minimum displacement。By the numerical control system according to the requirements of the workpiece program,so that each coordinate moves a number of minimum displacement,in order to achieve the relative movement of the tool and the workpiece to complete the processing of parts。
　　Functional features
　　In addition to the features of ordinary milling machines,CNC milling has the following features:
　　1. The parts processing has strong adaptability and flexibility,and can process parts with extremely complex outline shapes or difficult to control dimensions,such as mold parts, shell parts, etc；
　　2. Can process parts that can not be machined or are difficult to machine on ordinary machine tools,such as complicated curved parts described by mathematical models and three-dimensional space curved parts；
　　3, can be processed once fixture positioning, the need for multi-processing parts；
　　4, high precision machining, stable and reliable processing quality, numerical control device pulse equivalent is generally 0.001mm,high-precision CNC system up to 0.1μm,In addition, CNC machining also avoids the operator's operation errors；
　　5, a high degree of automation, can reduce the operator's labor intensity. Conducive to the production management automation；
　　6, high production efficiency, CNC milling machine generally do not need to use special fixtures and other special process equipment,When the workpiece is replaced, it is only necessary to call the machining program stored in the numerical control device, the clamping tool, and the adjustment of the tool data。This greatly shortens the production cycle。Secondly,CNC milling machines have the functions of milling machines, boring machines, and drilling machines, so that the processes are highly concentrated and the production efficiency is greatly improved. In addition,the CNC spindle's spindle speed and feed speed are continuously variable,so it is beneficial to choose the best cutting amount。
　　Although there are so many differences between the hand board and the die,However But they still have ties,Usually first hand to the customer to confirm the shape of the model plate,Confirmation before mass production mold。Many physical mold manufacturing costs are generally high,Large-scale mold value in 100,000 or even several million,Especially in the medical industry。If irrational or other problems occur during the installation of the mold,This very big。The Shouban model can solve this problem of loss,Reduce the risk of manufacturing a solid model。Mold is a lot of classification,Stainless steel embossing mold is one of them,Very targeted,Wanting different styles requires different molds,Then use a particularly good casting process to make。