Many friends often ask me what is the difference between engraving and milling machine and CNC machining center. It seems that the two kinds of machine tools are similar. In fact, their functions are different. Today, let’s learn about the difference between engraving and milling machine and machining center.
When machining small dies with small cutting tools, the machining center is unable to meet its needs and the cost is very high. The advantage of engraving machine is carving. If the hardness of processing material is relatively large, it will also appear to be inadequate. The emergence of engraving and milling machine can be said to fill the shortage of both.
The machining center can realize the centralized processing of milling, drilling, boring, reaming, tapping and other processes after the workpiece is clamped at one time. The function of the machining center is especially emphasized on “milling”. The speed of the CNC system required by the machining center is general, and the spindle speed is about 0 ~ 8000 rpm, which is especially suitable for heavy cutting. The rough machining center is generally cantilever type with large volume.
Engraving and milling machines generally use gantry structure. Gantry type is divided into pillar type and fixed beam type. At present, fixed beam type is the main type of engraving and milling machines. It can be carved or milled. On the basis of the engraving machine, the power of the spindle and servo motor is increased, and the bearing force of the lathe bed is maintained. At the same time, the high speed of the spindle is maintained, and more importantly, the precision is very high. Engraving and milling machine is also developing to high speed, generally known as high-speed machine, with stronger cutting ability and high machining accuracy. It can also directly process materials with hardness above HRC60, and can be formed once, which is suitable for finishing. Engraving and milling machine requires high-speed CNC system, spindle speed of 3000 ~ 30000 rpm.
CNC milling and machining center is used to complete a large amount of milling workpiece processing equipment. CNC engraving and milling machine is used to complete small amount of milling, or soft metal processing equipment. High speed cutting machine is used to finish medium milling amount and reduce grinding amount to the minimum.
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