1、 Analysis from the angle of numerical control
- The CNC milling center requires a general speed for the CNC system, and the spindle speed is about 0 ~ 8000rpm
- The engraving and milling machine requires a high-speed numerical control system, and the spindle speed is about 3000 ~ 30000 rpm
- High speed cutting machine tools require high-speed CNC system and excellent servo motor characteristics. The spindle speed is about 1500 ~ 30000 rpm
2、 Analysis on programming software
In terms of software, standard CAD / CAM software such as MasterCAM Cimatron PE UG can be used in CNC milling centers, high-speed cutting machines and engraving and milling machines. Milling machine usually thinks Cimatron tool path is better. The new software fully studies the uniformity of cutting amount at every moment of the tool, especially the speed and smoothness of the moment when the tool enters and leaves the work, as well as the following error at the inflection point, which makes the results and design graphics more close to each other. In the CAD part, the intuitive three-dimensional solid modeling, such as SolidWorks, has been widely used And then transfer it to CAM software for processing through Igs.
But don’t worry, the development speed of CAD / CAM is much faster than that of CNC machine tools.
Because of the particularity of its cutting tool, engraving process has quite small angle control, so type3 is better.
3、 – requirements for automatic tool change and automatic tool setting of tool magazine
Machining center is a decent term, machining center is to complete a variety of processes in the automatic state of numerical control equipment, mainly for some fixed mass production operations, if we process a box with many holes and teeth, and have to do almost every day, what good way to improve efficiency, do not use the tool library, and will not cause artificial tool change error, there is only one way Automatic tool setting system, one tool is installed upward, one button, automatic tool setting, direct processing, the error is within 0.001 ~ 0.0003 μ m, compared with the automatic time change, the efficiency is not a bit slow. If it is a machining center without automatic tool setting device, the efficiency of the latter is much higher than that of the former. Note that the price of the best brand of automatic tool setting instrument, such as MARPOSS, is only about 10000 yuan, and it is unlikely to be damaged. In this way, if we fully consider the utilization value of capital, we must not use machining center equipment. In addition, there are many problems in the tool magazine of domestic manufacturers.
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