We all know that CNC engraving and milling machine and machining center are both CNC machines. Mold manufacturers often use these two kinds of equipment when processing molds. Both of them can preset the processing line and achieve the final desired processing effect through the control of the system program. However, there is a big price difference between the two machines. In China, the price of a engraving and milling machine is more than $ 15,000, and that of a machining center is more than $30,000 (of course, there are many factors in the price, including the model and configuration. Here is the approximate price). Generally speaking, the price of machining center is higher. So what are the differences between machining center and engraving and milling machine? We can analyze and compare the following:
Engraving and milling machine
Vertical machining center
1、 Comparison from the structure of machines
The bed structure of the machining center is generally a "human" shaped column structure (of course, there are horizontal and gantry machining centers, here we mainly talk about vertical machining centers) Engraving and milling machine bed structure is generally "gantry structure". The ultra wide base and column structure design of the machining center can ensure the heavy load capacity of the machine tool. The gantry structure of engraving and milling machine makes the spindle move more flexible during machining.
In shape, the shape of the machining center is larger than that of the engraving and milling machine
2、 Machine performance and processing object
The machining center has high requirements on the rigidity of the machine tool and can recut. It is suitable for the processing of large-scale dies, as well as hard metals such as iron and steel. Engraving and milling machine is more flexible and has high machining accuracy. It is generally suitable for soft metal processing of small parts, with high moving speed and high spindle speed, which can be used for high-speed processing. The spindle of machining center is generally 8000 revolutions, while that of engraving and milling machines is 24000 revolutions.
3、 Differences in processing methods
Engraving and milling machine can also be gong steel material, but the way and machining center is not the same. When the machining center is processing, the rotation speed is slow but powerful, and the low speed can obtain large torque. However, if the rotation speed of the engraving and milling machine is too low, the Gong may not move, and in serious cases, the spindle will be burned. When the spindle of engraving and milling machine reaches about 1000 revolutions, it can output large torque.
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