Milling Machine (CNC engraving and milling machine) is a numerical control machine tools. Generally believed that the use of a small engraving and milling machine tools, high-power and high-speed CNC milling machine spindle motor. Engraving and milling machine only be engraved, but also milling is an efficient high-precision CNC machine tools.
CNC engraving and milling machines and engraving machine, machining center (computer gong) in the appearance of the structure are very similar.
Engraving machine: it highly suitable for small tool spindle speed of processing, torque is relatively small, focusing on the "carving" feature, such as wood (specially processed wood called wood machine), color plates, acrylic plates and other hardness high plate, not suitable for strong cutting large workpieces. Most currently available products under the banner name engraving machine is mainly for the processing craft, low cost, because accuracy is not high, not for mold development; but there are exceptions such as chip carving machine.
CNC engraving and milling machine can be carved, but also milling. CNC engraving and milling machine on the basis of the engraving machine to increase the spindle, servo motor power, endurance bed, while maintaining the spindle speed, more importantly, high precision. Also to high-speed engraving and milling machine development, commonly known as high-speed machine, cutting more capable, very high precision, but also can process the material hardness of HRC60 or more, a molding.
From the mechanical structure in terms of: machining centers generally cantilevered, engraving and milling machines and engraving machines are usually used gantry structure, divided into pillars of gantry-style and fixed beam, engraving and milling machine to set the current beam majority.
Data from the indicators in terms of: maximum spindle speed (r / min): processing center 8000; engraving and milling machine is the most common 30000, high-speed machines are higher than 30000; engraving machine engraving and milling machine with the same general for the high light treatment of the engraving machine can 80,000, but is not generally used but the air-spindle motor spindle.
Speed: As engraving and milling machines and engraving machines are more compact, their speed and feed rate faster than the processing center, in particular, high-speed machine with linear motor speed up to 120m/min.
From the size in terms of processing: Table size of this response can be better. Domestic processing centers (computer gong) the smallest table size (in mm, the same below) in 830 * 500 (850 machines); engraving and milling machine table of the largest area of 700 * 620 (750 machines), the minimum is 450 * 450 (400 machines); engraving machine usually does not exceed 450 * 450, the common 45 * 270 (250 machines).
From the application object in terms of: machining center for milling large amount of parts to complete the processing equipment, large-scale mold, material hardness, but also for ordinary coarse open mold; engraving and milling machine used to complete the small amount of milling, small mold finishing for copper workers, graphite and other processing; low-end machine is biased in favor of carving wood, color plates, acrylic plates of sheet metal processing high hardness, suitable for high-end chips, such as metal polishing.
Identify the range of view processing: machining centers, non-metal engraving and milling machine can do can do metal, or even engage in the hardness of the mold can be done, engraving machine can only do ordinary acrylic products and non-metallic products, usually directly supplies, such as arts and crafts, and circuit boards.
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