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The difference between machining centers and CNC milling machines


Machining Center (Computerized Numerical Control Machine) referred cnc, it is used in the machining of complex shape of the workpiece by the efficiency of automation machinery and CNC machine tool system components. Also known as computer processing center gong. Processing center with the magazine, with automatic tool change function, is a fixture on the workpiece after the multi-step process of CNC machine tools. Machining center is a highly mechatronic
Of the product, the workpiece clamping, CNC machine tool control system can automatically select according to different processes, change tools, automatic tool, automatically change the spindle speed, feed rate, etc., can complete a row drilling, boring, milling, reaming, tapping and other processes, thus greatly reducing the workpiece clamping time, measurement and adjustment of machine tools and other auxiliary process time for processing complex shape, high precision, variety replacement parts frequently with good economic results.
 
CNC milling machine is in the general milling integrated digital control system that can accurately be compared with milling machine under the control of the program code.
NC Milling addition to the characteristics of the ordinary milling machine, there are the following characteristics:
1, parts machining adaptability, flexibility, contours can be processed particularly complex or difficult to control the size of the parts, such as mold parts, shell-type parts, etc;
2, general machine tools can not be processed can be processed or hardly machined parts, such as complex curve parts and three-dimensional mathematical model Surface Parts description;
3, can process a fixture positioning, the need for multi-channel processing components;
4, high precision, stable and reliable processing quality, pulse equivalent numerical control device is generally 0.001mm, high-precision CNC system up to 0.1μm, in addition, also to avoid the NC operating personnel operational errors;
5, the high degree of automation, can reduce the operator's labor intensity. Conducive to the production management automation;
6, high production efficiency, CNC milling machines generally do not need to use special fixtures and other special process equipment, the replacement of the workpiece simply call stored in the CNC machining program means, clamping tools and tool data can be adjusted, thus greatly shortening the production cycle. Secondly, CNC milling machines milling, boring, drilling of features that make the process highly concentrated, greatly improving production efficiency. In addition, the CNC milling machine spindle speed and feed rate is continuously variable, so beneficial to choose the best cutting parameters;

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