What are the technical requirements of the engraving and milling machines for the options?
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Engraving and milling machines have certain technical requirements for options. For example, the automatic tool setting device is a necessary option for engraving and milling machines. It can accurately measure the tool length (within 0.002mm), thereby increasing the efficiency and reducing the chance of human error. The knife traces are minimized.
It should be noted that the automatic knife setting device on the engraving and milling machine is different from the CNC milling machine. Because sometimes small tools (such as 0.1mm) or drill bits of 1mm or less are used, the cutting force must be low, and the down pressure is generally used. Less than 0.8N automatic tool setting tool.
The main components of the engraving and milling machine must meet the requirements of high speed and high precision machining.
For example, high-speed spindles generally use two types. One is a direct high-speed spindle that is used within 1-2.2kw. The rotational speed is below 36,000 RPM and the cutting torque is 1-2N. Air-cooling is generally used. The other type is a built-in high-speed electric spindle that is used within 2.2-7.5 kw. The rotational speed is below 30,000 RPM and the cutting torque is 3-9N. Water cooling is generally used.
Of course, special attention must be paid to the accessories necessary for CNC milling machines, such as sharpeners and measuring microscopes.
Grinding machine is a necessary grinding tool machine, used in conjunction with a measuring microscope. Grinding machine CBN grinding wheel is very critical, the general coarse grinding can be used about 300, and fine grinding must use 1,200 grinding wheels.
The measuring microscope must have a scale to accurately measure the length and angle of the tool tip. Usually, the manufacturer should provide it. One thing must be emphasized: The tool grinding is an important part of the processing. The dimensional deviation of the CNC machine tool and the tool must be less than 0.01mm.